cmd/compile: remove yacc-based parser

- moved yySymType and token constants (L...) to lex.go - removed oldparser flag and related code - removed go generate that generated y.go Fixes #13240. Change-Id: I2576ec61ee1efe482f2a5132175725c9c02ef977 Reviewed-on: https://go-review.googlesource.com/17176 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
author: Robert Griesemer <gri@golang.org> 2015-11-23 14:11:15 -0800
committer: Robert Griesemer <gri@golang.org> 2015-11-24 00:23:14 +0000
commit: b5fe07710f4a31bfc100fbc2e344be11e4b4d3fc (patch)
tree: 48825112724345765c439c903fde6e985758eb06 /src
parent: f1b919574cf8022d09afdece1f76b2c2b2529004 (diff)
download: go-b5fe07710f4a31bfc100fbc2e344be11e4b4d3fc.tar.xz
6 files changed, 108 insertions, 6025 deletions
diff --git a/src/cmd/compile/internal/gc/go.go b/src/cmd/compile/internal/gc/go.go
index 44465493ef..6d275c8087 100644
--- a/src/cmd/compile/internal/gc/go.go
+++ b/src/cmd/compile/internal/gc/go.go
@@ -627,8 +627,6 @@ var Widthint int
 
 var Widthreg int
 
-var typesw *Node // TODO(gri) remove when yacc-based parser is gone
-
 var nblank *Node
 
 var Funcdepth int32
diff --git a/src/cmd/compile/internal/gc/go.y b/src/cmd/compile/internal/gc/go.y
deleted file mode 100644
index 65e8d2dc86..0000000000
--- a/src/cmd/compile/internal/gc/go.y
+++ /dev/null
@@ -1,2325 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
- * Go language grammar.
- *
- * The Go semicolon rules are:
- *
- *  1. all statements and declarations are terminated by semicolons.
- *  2. semicolons can be omitted before a closing ) or }.
- *  3. semicolons are inserted by the lexer before a newline
- *      following a specific list of tokens.
- *
- * Rules #1 and #2 are accomplished by writing the lists as
- * semicolon-separated lists with an optional trailing semicolon.
- * Rule #3 is implemented in yylex.
- */
-
-%{
-package gc
-
-import (
-	"fmt"
-	"strings"
-)
-%}
-%union	{
-	node *Node
-	list *NodeList
-	typ *Type
-	sym *Sym
-	val Val
-	i int
-}
-
-// |sed 's/.*	//' |9 fmt -l1 |sort |9 fmt -l50 | sed 's/^/%xxx		/'
-
-%token	<val>	LLITERAL
-%token	<i>	LASOP LCOLAS
-%token	<sym>	LBREAK LCASE LCHAN LCONST LCONTINUE LDDD
-%token	<sym>	LDEFAULT LDEFER LELSE LFALL LFOR LFUNC LGO LGOTO
-%token	<sym>	LIF LIMPORT LINTERFACE LMAP LNAME
-%token	<sym>	LPACKAGE LRANGE LRETURN LSELECT LSTRUCT LSWITCH
-%token	<sym>	LTYPE LVAR
-
-%token		LANDAND LANDNOT LBODY LCOMM LDEC LEQ LGE LGT
-%token		LIGNORE LINC LLE LLSH LLT LNE LOROR LRSH
-
-%type	<i>	lbrace import_here
-%type	<sym>	sym packname
-%type	<val>	oliteral
-
-%type	<node>	stmt ntype
-%type	<node>	arg_type
-%type	<node>	case caseblock
-%type	<node>	compound_stmt dotname embed expr complitexpr bare_complitexpr
-%type	<node>	expr_or_type
-%type	<node>	fndcl hidden_fndcl fnliteral
-%type	<node>	for_body for_header for_stmt if_header if_stmt non_dcl_stmt
-%type	<node>	interfacedcl keyval labelname name
-%type	<node>	name_or_type non_expr_type
-%type	<node>	new_name dcl_name oexpr typedclname
-%type	<node>	onew_name
-%type	<node>	osimple_stmt pexpr pexpr_no_paren
-%type	<node>	pseudocall range_stmt select_stmt
-%type	<node>	simple_stmt
-%type	<node>	switch_stmt uexpr
-%type	<node>	xfndcl typedcl start_complit
-
-%type	<list>	xdcl fnbody fnres loop_body dcl_name_list
-%type	<list>	new_name_list expr_list keyval_list braced_keyval_list expr_or_type_list xdcl_list
-%type	<list>	oexpr_list caseblock_list elseif elseif_list else stmt_list oarg_type_list_ocomma arg_type_list
-%type	<list>	interfacedcl_list vardcl vardcl_list structdcl structdcl_list
-%type	<list>	common_dcl constdcl constdcl1 constdcl_list typedcl_list
-
-%type	<node>	convtype comptype dotdotdot
-%type	<node>	indcl interfacetype structtype ptrtype
-%type	<node>	recvchantype non_recvchantype othertype fnret_type fntype
-
-%type	<sym>	hidden_importsym hidden_pkg_importsym
-
-%type	<node>	hidden_constant hidden_literal hidden_funarg
-%type	<node>	hidden_interfacedcl hidden_structdcl
-
-%type	<list>	hidden_funres
-%type	<list>	ohidden_funres
-%type	<list>	hidden_funarg_list ohidden_funarg_list
-%type	<list>	hidden_interfacedcl_list ohidden_interfacedcl_list
-%type	<list>	hidden_structdcl_list ohidden_structdcl_list
-
-%type	<typ>	hidden_type hidden_type_misc hidden_pkgtype
-%type	<typ>	hidden_type_func
-%type	<typ>	hidden_type_recv_chan hidden_type_non_recv_chan
-
-%left		LCOMM	/* outside the usual hierarchy; here for good error messages */
-
-%left		LOROR
-%left		LANDAND
-%left		LEQ LNE LLE LGE LLT LGT
-%left		'+' '-' '|' '^'
-%left		'*' '/' '%' '&' LLSH LRSH LANDNOT
-
-/*
- * manual override of shift/reduce conflicts.
- * the general form is that we assign a precedence
- * to the token being shifted and then introduce
- * NotToken with lower precedence or PreferToToken with higher
- * and annotate the reducing rule accordingly.
- */
-%left		NotPackage
-%left		LPACKAGE
-
-%left		NotParen
-%left		'('
-
-%left		')'
-%left		PreferToRightParen
-
-%error loadsys package LIMPORT '(' LLITERAL import_package import_there ',':
-	"unexpected comma during import block"
-
-%error loadsys package LIMPORT LNAME ';':
-	"missing import path; require quoted string"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LIF if_header ';':
-	"missing { after if clause"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LSWITCH if_header ';':
-	"missing { after switch clause"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LFOR for_header ';':
-	"missing { after for clause"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LFOR ';' LBODY:
-	"missing { after for clause"
-
-%error loadsys package imports LFUNC LNAME '(' ')' ';' '{':
-	"unexpected semicolon or newline before {"
-
-%error loadsys package imports LTYPE LNAME ';':
-	"unexpected semicolon or newline in type declaration"
-
-%error loadsys package imports LCHAN '}':
-	"unexpected } in channel type"
-
-%error loadsys package imports LCHAN ')':
-	"unexpected ) in channel type"
-
-%error loadsys package imports LCHAN ',':
-	"unexpected comma in channel type"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' if_stmt ';' LELSE:
-	"unexpected semicolon or newline before else"
-
-%error loadsys package imports LTYPE LNAME LINTERFACE '{' LNAME ',' LNAME:
-	"name list not allowed in interface type"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LFOR LVAR LNAME '=' LNAME:
-	"var declaration not allowed in for initializer"
-
-%error loadsys package imports LVAR LNAME '[' ']' LNAME '{':
-	"unexpected { at end of statement"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LVAR LNAME '[' ']' LNAME '{':
-	"unexpected { at end of statement"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LDEFER LNAME ';':
-	"argument to go/defer must be function call"
-
-%error loadsys package imports LVAR LNAME '=' LNAME '{' LNAME ';':
-	"need trailing comma before newline in composite literal"
-
-%error loadsys package imports LVAR LNAME '=' comptype '{' LNAME ';':
-	"need trailing comma before newline in composite literal"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LFUNC LNAME:
-	"nested func not allowed"
-
-%error loadsys package imports LFUNC LNAME '(' ')' '{' LIF if_header loop_body LELSE ';':
-	"else must be followed by if or statement block"
-
-%%
-file:
-	loadsys
-	package
-	imports
-	xdcl_list
-	{
-		xtop = concat(xtop, $4);
-	}
-
-package:
-	%prec NotPackage
-	{
-		prevlineno = lineno;
-		Yyerror("package statement must be first");
-		errorexit();
-	}
-|	LPACKAGE sym ';'
-	{
-		mkpackage($2.Name);
-	}
-
-/*
- * this loads the definitions for the low-level runtime functions,
- * so that the compiler can generate calls to them,
- * but does not make the name "runtime" visible as a package.
- */
-loadsys:
-	{
-		importpkg = Runtimepkg;
-
-		if Debug['A'] != 0 {
-			cannedimports("runtime.Builtin", "package runtime\n\n$$\n\n");
-		} else {
-			cannedimports("runtime.Builtin", runtimeimport);
-		}
-		curio.importsafe = true
-	}
-	import_package
-	import_there
-	{
-		importpkg = nil;
-	}
-
-imports:
-|	imports import ';'
-
-import:
-	LIMPORT import_stmt
-|	LIMPORT '(' import_stmt_list osemi ')'
-|	LIMPORT '(' ')'
-
-import_stmt:
-	import_here import_package import_there
-	{
-		ipkg := importpkg;
-		my := importmyname;
-		importpkg = nil;
-		importmyname = nil;
-
-		if my == nil {
-			my = Lookup(ipkg.Name);
-		}
-
-		pack := Nod(OPACK, nil, nil);
-		pack.Sym = my;
-		pack.Name.Pkg = ipkg;
-		pack.Lineno = int32($1);
-
-		if strings.HasPrefix(my.Name, ".") {
-			importdot(ipkg, pack);
-			break;
-		}
-		if my.Name == "init" {
-			lineno = int32($1)
-			Yyerror("cannot import package as init - init must be a func");
-			break;
-		}
-		if my.Name == "_" {
-			break;
-		}
-		if my.Def != nil {
-			lineno = int32($1);
-			redeclare(my, "as imported package name");
-		}
-		my.Def = pack;
-		my.Lastlineno = int32($1);
-		my.Block = 1;	// at top level
-	}
-|	import_here import_there
-	{
-		// When an invalid import path is passed to importfile,
-		// it calls Yyerror and then sets up a fake import with
-		// no package statement. This allows us to test more
-		// than one invalid import statement in a single file.
-		if nerrors == 0 {
-			Fatalf("phase error in import");
-		}
-	}
-
-import_stmt_list:
-	import_stmt
-|	import_stmt_list ';' import_stmt
-
-import_here:
-	LLITERAL
-	{
-		// import with original name
-		$$ = parserline();
-		importmyname = nil;
-		importfile(&$1, $$);
-	}
-|	sym LLITERAL
-	{
-		// import with given name
-		$$ = parserline();
-		importmyname = $1;
-		importfile(&$2, $$);
-	}
-|	'.' LLITERAL
-	{
-		// import into my name space
-		$$ = parserline();
-		importmyname = Lookup(".");
-		importfile(&$2, $$);
-	}
-
-import_package:
-	LPACKAGE LNAME import_safety ';'
-	{
-		if importpkg.Name == "" {
-			importpkg.Name = $2.Name;
-			numImport[$2.Name]++
-		} else if importpkg.Name != $2.Name {
-			Yyerror("conflicting names %s and %s for package %q", importpkg.Name, $2.Name, importpkg.Path);
-		}
-		if incannedimport == 0 {
-			importpkg.Direct = true;
-		}
-		importpkg.Safe = curio.importsafe
-
-		if safemode != 0 && !curio.importsafe {
-			Yyerror("cannot import unsafe package %q", importpkg.Path);
-		}
-	}
-
-import_safety:
-|	LNAME
-	{
-		if $1.Name == "safe" {
-			curio.importsafe = true
-		}
-	}
-
-import_there:
-	{
-		defercheckwidth();
-	}
-	hidden_import_list '$' '$'
-	{
-		resumecheckwidth();
-		unimportfile();
-	}
-
-/*
- * declarations
- */
-xdcl:
-	{
-		Yyerror("empty top-level declaration");
-		$$ = nil;
-	}
-|	common_dcl
-|	xfndcl
-	{
-		$$ = list1($1);
-	}
-|	non_dcl_stmt
-	{
-		Yyerror("non-declaration statement outside function body");
-		$$ = nil;
-	}
-|	error
-	{
-		$$ = nil;
-	}
-
-common_dcl:
-	LVAR vardcl
-	{
-		$$ = $2;
-	}
-|	LVAR '(' vardcl_list osemi ')'
-	{
-		$$ = $3;
-	}
-|	LVAR '(' ')'
-	{
-		$$ = nil;
-	}
-|	lconst constdcl
-	{
-		$$ = $2;
-		iota_ = -100000;
-		lastconst = nil;
-	}
-|	lconst '(' constdcl osemi ')'
-	{
-		$$ = $3;
-		iota_ = -100000;
-		lastconst = nil;
-	}
-|	lconst '(' constdcl ';' constdcl_list osemi ')'
-	{
-		$$ = concat($3, $5);
-		iota_ = -100000;
-		lastconst = nil;
-	}
-|	lconst '(' ')'
-	{
-		$$ = nil;
-		iota_ = -100000;
-	}
-|	LTYPE typedcl
-	{
-		$$ = list1($2);
-	}
-|	LTYPE '(' typedcl_list osemi ')'
-	{
-		$$ = $3;
-	}
-|	LTYPE '(' ')'
-	{
-		$$ = nil;
-	}
-
-lconst:
-	LCONST
-	{
-		iota_ = 0;
-	}
-
-vardcl:
-	dcl_name_list ntype
-	{
-		$$ = variter($1, $2, nil);
-	}
-|	dcl_name_list ntype '=' expr_list
-	{
-		$$ = variter($1, $2, $4);
-	}
-|	dcl_name_list '=' expr_list
-	{
-		$$ = variter($1, nil, $3);
-	}
-
-constdcl:
-	dcl_name_list ntype '=' expr_list
-	{
-		$$ = constiter($1, $2, $4);
-	}
-|	dcl_name_list '=' expr_list
-	{
-		$$ = constiter($1, nil, $3);
-	}
-
-constdcl1:
-	constdcl
-|	dcl_name_list ntype
-	{
-		$$ = constiter($1, $2, nil);
-	}
-|	dcl_name_list
-	{
-		$$ = constiter($1, nil, nil);
-	}
-
-typedclname:
-	sym
-	{
-		// different from dclname because the name
-		// becomes visible right here, not at the end
-		// of the declaration.
-		$$ = typedcl0($1);
-	}
-
-typedcl:
-	typedclname ntype
-	{
-		$$ = typedcl1($1, $2, true);
-	}
-
-simple_stmt:
-	expr
-	{
-		$$ = $1;
-
-		// These nodes do not carry line numbers.
-		// Since a bare name used as an expression is an error,
-		// introduce a wrapper node to give the correct line.
-		switch($$.Op) {
-		case ONAME, ONONAME, OTYPE, OPACK, OLITERAL:
-			$$ = Nod(OPAREN, $$, nil);
-			$$.Implicit = true;
-			break;
-		}
-	}
-|	expr LASOP expr
-	{
-		$$ = Nod(OASOP, $1, $3);
-		$$.Etype = EType($2);			// rathole to pass opcode
-	}
-|	expr_list '=' expr_list
-	{
-		if $1.Next == nil && $3.Next == nil {
-			// simple
-			$$ = Nod(OAS, $1.N, $3.N);
-			break;
-		}
-		// multiple
-		$$ = Nod(OAS2, nil, nil);
-		$$.List = $1;
-		$$.Rlist = $3;
-	}
-|	expr_list LCOLAS expr_list
-	{
-		if $3.N.Op == OTYPESW {
-			$$ = Nod(OTYPESW, nil, $3.N.Right);
-			if $3.Next != nil {
-				Yyerror("expr.(type) must be alone in list");
-			}
-			if $1.Next != nil {
-				Yyerror("argument count mismatch: %d = %d", count($1), 1);
-			} else if ($1.N.Op != ONAME && $1.N.Op != OTYPE && $1.N.Op != ONONAME && ($1.N.Op != OLITERAL || $1.N.Name == nil)) || isblank($1.N) {
-				Yyerror("invalid variable name %s in type switch", $1.N);
-			} else {
-				$$.Left = dclname($1.N.Sym);
-			}  // it's a colas, so must not re-use an oldname.
-			break;
-		}
-		$$ = colas($1, $3, int32($2));
-	}
-|	expr LINC
-	{
-		$$ = Nod(OASOP, $1, Nodintconst(1));
-		$$.Implicit = true;
-		// TODO(marvin): Fix Node.EType type union.
-		$$.Etype = EType(OADD);
-	}
-|	expr LDEC
-	{
-		$$ = Nod(OASOP, $1, Nodintconst(1));
-		$$.Implicit = true;
-		// TODO(marvin): Fix Node.EType type union.
-		$$.Etype = EType(OSUB);
-	}
-
-case:
-	LCASE expr_or_type_list ':'
-	{
-		var n, nn *Node
-
-		// will be converted to OCASE
-		// right will point to next case
-		// done in casebody()
-		markdcl();
-		$$ = Nod(OXCASE, nil, nil);
-		$$.List = $2;
-		if typesw != nil && typesw.Right != nil {
-			n = typesw.Right.Left
-			if n != nil {
-				// type switch - declare variable
-				nn = newname(n.Sym);
-				declare(nn, dclcontext);
-				$$.Rlist = list1(nn);
-	
-				// keep track of the instances for reporting unused
-				nn.Name.Defn = typesw.Right;
-			}
-		}
-	}
-|	LCASE expr_or_type_list '=' expr ':'
-	{
-		var n *Node
-
-		// will be converted to OCASE
-		// right will point to next case
-		// done in casebody()
-		markdcl();
-		$$ = Nod(OXCASE, nil, nil);
-		if $2.Next == nil {
-			n = Nod(OAS, $2.N, $4);
-		} else {
-			n = Nod(OAS2, nil, nil);
-			n.List = $2;
-			n.Rlist = list1($4);
-		}
-		$$.List = list1(n);
-	}
-|	LCASE expr_or_type_list LCOLAS expr ':'
-	{
-		// will be converted to OCASE
-		// right will point to next case
-		// done in casebody()
-		markdcl();
-		$$ = Nod(OXCASE, nil, nil);
-		$$.List = list1(colas($2, list1($4), int32($3)));
-	}
-|	LDEFAULT ':'
-	{
-		var n, nn *Node
-
-		markdcl();
-		$$ = Nod(OXCASE, nil, nil);
-		if typesw != nil && typesw.Right != nil {
-			n = typesw.Right.Left
-			if n != nil {
-				// type switch - declare variable
-				nn = newname(n.Sym);
-				declare(nn, dclcontext);
-				$$.Rlist = list1(nn);
-	
-				// keep track of the instances for reporting unused
-				nn.Name.Defn = typesw.Right;
-			}
-		}
-	}
-
-compound_stmt:
-	'{'
-	{
-		markdcl();
-	}
-	stmt_list '}'
-	{
-		if $3 == nil {
-			$$ = Nod(OEMPTY, nil, nil);
-		} else {
-			$$ = liststmt($3);
-		}
-		popdcl();
-	}
-
-caseblock:
-	case
-	{
-		// If the last token read by the lexer was consumed
-		// as part of the case, clear it (parser has cleared yychar).
-		// If the last token read by the lexer was the lookahead
-		// leave it alone (parser has it cached in yychar).
-		// This is so that the stmt_list action doesn't look at
-		// the case tokens if the stmt_list is empty.
-		yylast = yychar;
-		$1.Xoffset = int64(block);
-	}
-	stmt_list
-	{
-		// This is the only place in the language where a statement
-		// list is not allowed to drop the final semicolon, because
-		// it's the only place where a statement list is not followed 
-		// by a closing brace.  Handle the error for pedantry.
-
-		// Find the final token of the statement list.
-		// yylast is lookahead; yyprev is last of stmt_list
-		last := yyprev;
-
-		if last > 0 && last != ';' && yychar != '}' {
-			Yyerror("missing statement after label");
-		}
-		$$ = $1;
-		$$.Nbody = $3;
-		popdcl();
-	}
-
-caseblock_list:
-	{
-		$$ = nil;
-	}
-|	caseblock_list caseblock
-	{
-		$$ = list($1, $2);
-	}
-
-loop_body:
-	LBODY
-	{
-		markdcl();
-	}
-	stmt_list '}'
-	{
-		$$ = $3;
-		popdcl();
-	}
-
-range_stmt:
-	expr_list '=' LRANGE expr
-	{
-		$$ = Nod(ORANGE, nil, $4);
-		$$.List = $1;
-		$$.Etype = 0;	// := flag
-	}
-|	expr_list LCOLAS LRANGE expr
-	{
-		$$ = Nod(ORANGE, nil, $4);
-		$$.List = $1;
-		$$.Colas = true;
-		colasdefn($1, $$);
-	}
-|	LRANGE expr
-	{
-		$$ = Nod(ORANGE, nil, $2);
-		$$.Etype = 0; // := flag
-	}
-
-for_header:
-	osimple_stmt ';' osimple_stmt ';' osimple_stmt
-	{
-		// init ; test ; incr
-		if $5 != nil && $5.Colas {
-			Yyerror("cannot declare in the for-increment");
-		}
-		$$ = Nod(OFOR, nil, nil);
-		if $1 != nil {
-			$$.Ninit = list1($1);
-		}
-		$$.Left = $3;
-		$$.Right = $5;
-	}
-|	osimple_stmt
-	{
-		// normal test
-		$$ = Nod(OFOR, nil, nil);
-		$$.Left = $1;
-	}
-|	range_stmt
-
-for_body:
-	for_header loop_body
-	{
-		$$ = $1;
-		$$.Nbody = concat($$.Nbody, $2);
-	}
-
-for_stmt:
-	LFOR
-	{
-		markdcl();
-	}
-	for_body
-	{
-		$$ = $3;
-		popdcl();
-	}
-
-if_header:
-	osimple_stmt
-	{
-		// test
-		$$ = Nod(OIF, nil, nil);
-		$$.Left = $1;
-	}
-|	osimple_stmt ';' osimple_stmt
-	{
-		// init ; test
-		$$ = Nod(OIF, nil, nil);
-		if $1 != nil {
-			$$.Ninit = list1($1);
-		}
-		$$.Left = $3;
-	}
-
-/* IF cond body (ELSE IF cond body)* (ELSE block)? */
-if_stmt:
-	LIF
-	{
-		markdcl();
-	}
-	if_header
-	{
-		if $3.Left == nil {
-			Yyerror("missing condition in if statement");
-		}
-	}
-	loop_body
-	{
-		$3.Nbody = $5;
-	}
-	elseif_list else
-	{
-		var n *Node
-		var nn *NodeList
-
-		$$ = $3;
-		n = $3;
-		popdcl();
-		for nn = concat($7, $8); nn != nil; nn = nn.Next {
-			if nn.N.Op == OIF {
-				popdcl();
-			}
-			n.Rlist = list1(nn.N);
-			n = nn.N;
-		}
-	}
-
-elseif:
-	LELSE LIF 
-	{
-		markdcl();
-	}
-	if_header loop_body
-	{
-		if $4.Left == nil {
-			Yyerror("missing condition in if statement");
-		}
-		$4.Nbody = $5;
-		$$ = list1($4);
-	}
-
-elseif_list:
-	{
-		$$ = nil;
-	}
-|	elseif_list elseif
-	{
-		$$ = concat($1, $2);
-	}
-
-else:
-	{
-		$$ = nil;
-	}
-|	LELSE compound_stmt
-	{
-		l := &NodeList{N: $2}
-		l.End = l
-		$$ = l;
-	}
-
-switch_stmt:
-	LSWITCH
-	{
-		markdcl();
-	}
-	if_header
-	{
-		var n *Node
-		n = $3.Left;
-		if n != nil && n.Op != OTYPESW {
-			n = nil;
-		}
-		typesw = Nod(OXXX, typesw, n);
-	}
-	LBODY caseblock_list '}'
-	{
-		$$ = $3;
-		$$.Op = OSWITCH;
-		$$.List = $6;
-		typesw = typesw.Left;
-		popdcl();
-	}
-
-select_stmt:
-	LSELECT
-	{
-		typesw = Nod(OXXX, typesw, nil);
-	}
-	LBODY caseblock_list '}'
-	{
-		$$ = Nod(OSELECT, nil, nil);
-		$$.Lineno = typesw.Lineno;
-		$$.List = $4;
-		typesw = typesw.Left;
-	}
-
-/*
- * expressions
- */
-expr:
-	uexpr
-|	expr LOROR expr
-	{
-		$$ = Nod(OOROR, $1, $3);
-	}
-|	expr LANDAND expr
-	{
-		$$ = Nod(OANDAND, $1, $3);
-	}
-|	expr LEQ expr
-	{
-		$$ = Nod(OEQ, $1, $3);
-	}
-|	expr LNE expr
-	{
-		$$ = Nod(ONE, $1, $3);
-	}
-|	expr LLT expr
-	{
-		$$ = Nod(OLT, $1, $3);
-	}
-|	expr LLE expr
-	{
-		$$ = Nod(OLE, $1, $3);
-	}
-|	expr LGE expr
-	{
-		$$ = Nod(OGE, $1, $3);
-	}
-|	expr LGT expr
-	{
-		$$ = Nod(OGT, $1, $3);
-	}
-|	expr '+' expr
-	{
-		$$ = Nod(OADD, $1, $3);
-	}
-|	expr '-' expr
-	{
-		$$ = Nod(OSUB, $1, $3);
-	}
-|	expr '|' expr
-	{
-		$$ = Nod(OOR, $1, $3);
-	}
-|	expr '^' expr
-	{
-		$$ = Nod(OXOR, $1, $3);
-	}
-|	expr '*' expr
-	{
-		$$ = Nod(OMUL, $1, $3);
-	}
-|	expr '/' expr
-	{
-		$$ = Nod(ODIV, $1, $3);
-	}
-|	expr '%' expr
-	{
-		$$ = Nod(OMOD, $1, $3);
-	}
-|	expr '&' expr
-	{
-		$$ = Nod(OAND, $1, $3);
-	}
-|	expr LANDNOT expr
-	{
-		$$ = Nod(OANDNOT, $1, $3);
-	}
-|	expr LLSH expr
-	{
-		$$ = Nod(OLSH, $1, $3);
-	}
-|	expr LRSH expr
-	{
-		$$ = Nod(ORSH, $1, $3);
-	}
-	/* not an expression anymore, but left in so we can give a good error */
-|	expr LCOMM expr
-	{
-		$$ = Nod(OSEND, $1, $3);
-	}
-
-uexpr:
-	pexpr
-|	'*' uexpr
-	{
-		$$ = Nod(OIND, $2, nil);
-	}
-|	'&' uexpr
-	{
-		if $2.Op == OCOMPLIT {
-			// Special case for &T{...}: turn into (*T){...}.
-			$$ = $2;
-			$$.Right = Nod(OIND, $$.Right, nil);
-			$$.Right.Implicit = true;
-		} else {
-			$$ = Nod(OADDR, $2, nil);
-		}
-	}
-|	'+' uexpr
-	{
-		$$ = Nod(OPLUS, $2, nil);
-	}
-|	'-' uexpr
-	{
-		$$ = Nod(OMINUS, $2, nil);
-	}
-|	'!' uexpr
-	{
-		$$ = Nod(ONOT, $2, nil);
-	}
-|	'~' uexpr
-	{
-		Yyerror("the bitwise complement operator is ^");
-		$$ = Nod(OCOM, $2, nil);
-	}
-|	'^' uexpr
-	{
-		$$ = Nod(OCOM, $2, nil);
-	}
-|	LCOMM uexpr
-	{
-		$$ = Nod(ORECV, $2, nil);
-	}
-
-/*
- * call-like statements that
- * can be preceded by 'defer' and 'go'
- */
-pseudocall:
-	pexpr '(' ')'
-	{
-		$$ = Nod(OCALL, $1, nil);
-	}
-|	pexpr '(' expr_or_type_list ocomma ')'
-	{
-		$$ = Nod(OCALL, $1, nil);
-		$$.List = $3;
-	}
-|	pexpr '(' expr_or_type_list LDDD ocomma ')'
-	{
-		$$ = Nod(OCALL, $1, nil);
-		$$.List = $3;
-		$$.Isddd = true;
-	}
-
-pexpr_no_paren:
-	LLITERAL
-	{
-		$$ = nodlit($1);
-	}
-|	name
-|	pexpr '.' sym
-	{
-		if $1.Op == OPACK {
-			var s *Sym
-			s = restrictlookup($3.Name, $1.Name.Pkg);
-			$1.Used = true;
-			$$ = oldname(s);
-			break;
-		}
-		$$ = Nod(OXDOT, $1, newname($3));
-	}
-|	pexpr '.' '(' expr_or_type ')'
-	{
-		$$ = Nod(ODOTTYPE, $1, $4);
-	}
-|	pexpr '.' '(' LTYPE ')'
-	{
-		$$ = Nod(OTYPESW, nil, $1);
-	}
-|	pexpr '[' expr ']'
-	{
-		$$ = Nod(OINDEX, $1, $3);
-	}
-|	pexpr '[' oexpr ':' oexpr ']'
-	{
-		$$ = Nod(OSLICE, $1, Nod(OKEY, $3, $5));
-	}
-|	pexpr '[' oexpr ':' oexpr ':' oexpr ']'
-	{
-		if $5 == nil {
-			Yyerror("middle index required in 3-index slice");
-		}
-		if $7 == nil {
-			Yyerror("final index required in 3-index slice");
-		}
-		$$ = Nod(OSLICE3, $1, Nod(OKEY, $3, Nod(OKEY, $5, $7)));
-	}
-|	pseudocall
-|	convtype '(' expr ocomma ')'
-	{
-		// conversion
-		$$ = Nod(OCALL, $1, nil);
-		$$.List = list1($3);
-	}
-|	comptype lbrace start_complit braced_keyval_list '}'
-	{
-		$$ = $3;
-		$$.Right = $1;
-		$$.List = $4;
-		fixlbrace($2);
-	}
-|	pexpr_no_paren '{' start_complit braced_keyval_list '}'
-	{
-		$$ = $3;
-		$$.Right = $1;
-		$$.List = $4;
-	}
-|	'(' expr_or_type ')' '{' start_complit braced_keyval_list '}'
-	{
-		Yyerror("cannot parenthesize type in composite literal");
-		$$ = $5;
-		$$.Right = $2;
-		$$.List = $6;
-	}
-|	fnliteral
-
-start_complit:
-	{
-		// composite expression.
-		// make node early so we get the right line number.
-		$$ = Nod(OCOMPLIT, nil, nil);
-	}
-
-keyval:
-	complitexpr ':' complitexpr
-	{
-		$$ = Nod(OKEY, $1, $3);
-	}
-
-bare_complitexpr:
-	expr
-	{
-		// These nodes do not carry line numbers.
-		// Since a composite literal commonly spans several lines,
-		// the line number on errors may be misleading.
-		// Introduce a wrapper node to give the correct line.
-		$$ = $1;
-		switch($$.Op) {
-		case ONAME, ONONAME, OTYPE, OPACK, OLITERAL:
-			$$ = Nod(OPAREN, $$, nil);
-			$$.Implicit = true;
-		}
-	}
-|	'{' start_complit braced_keyval_list '}'
-	{
-		$$ = $2;
-		$$.List = $3;
-	}
-
-complitexpr:
-	expr
-|	'{' start_complit braced_keyval_list '}'
-	{
-		$$ = $2;
-		$$.List = $3;
-	}
-
-pexpr:
-	pexpr_no_paren
-|	'(' expr_or_type ')'
-	{
-		$$ = $2;
-		
-		// Need to know on lhs of := whether there are ( ).
-		// Don't bother with the OPAREN in other cases:
-		// it's just a waste of memory and time.
-		switch($$.Op) {
-		case ONAME, ONONAME, OPACK, OTYPE, OLITERAL, OTYPESW:
-			$$ = Nod(OPAREN, $$, nil);
-		}
-	}
-
-expr_or_type:
-	expr
-|	non_expr_type	%prec PreferToRightParen
-
-name_or_type:
-	ntype
-
-lbrace:
-	LBODY
-	{
-		$$ = LBODY;
-	}
-|	'{'
-	{
-		$$ = '{';
-	}
-
-/*
- * names and types
- *	newname is used before declared
- *	oldname is used after declared
- */
-new_name:
-	sym
-	{
-		if $1 == nil {
-			$$ = nil;
-		} else {
-			$$ = newname($1);
-		}
-	}
-
-dcl_name:
-	sym
-	{
-		$$ = dclname($1);
-	}
-
-onew_name:
-	{
-		$$ = nil;
-	}
-|	new_name
-
-sym:
-	LNAME
-	{
-		$$ = $1;
-		// during imports, unqualified non-exported identifiers are from builtinpkg
-		if importpkg != nil && !exportname($1.Name) {
-			$$ = Pkglookup($1.Name, builtinpkg);
-		}
-	}
-|	hidden_importsym
-|	'?'
-	{
-		$$ = nil;
-	}
-
-hidden_importsym:
-	'@' LLITERAL '.' LNAME
-	{
-		var p *Pkg
-
-		if $2.U.(string) == "" {
-			p = importpkg;
-		} else {
-			if isbadimport($2.U.(string)) {
-				errorexit();
-			}
-			p = mkpkg($2.U.(string));
-		}
-		$$ = Pkglookup($4.Name, p);
-	}
-|	'@' LLITERAL '.' '?'
-	{
-		var p *Pkg
-
-		if $2.U.(string) == "" {
-			p = importpkg;
-		} else {
-			if isbadimport($2.U.(string)) {
-				errorexit();
-			}
-			p = mkpkg($2.U.(string));
-		}
-		$$ = Pkglookup("?", p);
-	}
-
-name:
-	sym	%prec NotParen
-	{
-		$$ = oldname($1);
-		if $$.Name != nil && $$.Name.Pack != nil {
-			$$.Name.Pack.Used = true;
-		}
-	}
-
-labelname:
-	new_name
-
-/*
- * to avoid parsing conflicts, type is split into
- *	channel types
- *	function types
- *	parenthesized types
- *	any other type
- * the type system makes additional restrictions,
- * but those are not implemented in the grammar.
- */
-dotdotdot:
-	LDDD
-	{
-		Yyerror("final argument in variadic function missing type");
-		$$ = Nod(ODDD, typenod(typ(TINTER)), nil);
-	}
-|	LDDD ntype
-	{
-		$$ = Nod(ODDD, $2, nil);
-	}
-
-ntype:
-	recvchantype
-|	fntype
-|	othertype
-|	ptrtype
-|	dotname
-|	'(' ntype ')'
-	{
-		$$ = $2;
-	}
-
-non_expr_type:
-	recvchantype
-|	fntype
-|	othertype
-|	'*' non_expr_type
-	{
-		$$ = Nod(OIND, $2, nil);
-	}
-
-non_recvchantype:
-	fntype
-|	othertype
-|	ptrtype
-|	dotname
-|	'(' ntype ')'
-	{
-		$$ = $2;
-	}
-
-convtype:
-	fntype
-|	othertype
-
-comptype:
-	othertype
-
-fnret_type:
-	recvchantype
-|	fntype
-|	othertype
-|	ptrtype
-|	dotname
-
-dotname:
-	name
-|	name '.' sym
-	{
-		if $1.Op == OPACK {
-			var s *Sym
-			s = restrictlookup($3.Name, $1.Name.Pkg);
-			$1.Used = true;
-			$$ = oldname(s);
-			break;
-		}
-		$$ = Nod(OXDOT, $1, newname($3));
-	}
-
-othertype:
-	'[' oexpr ']' ntype
-	{
-		$$ = Nod(OTARRAY, $2, $4);
-	}
-|	'[' LDDD ']' ntype
-	{
-		// array literal of nelem
-		$$ = Nod(OTARRAY, Nod(ODDD, nil, nil), $4);
-	}
-|	LCHAN non_recvchantype
-	{
-		$$ = Nod(OTCHAN, $2, nil);
-		$$.Etype = Cboth;
-	}
-|	LCHAN LCOMM ntype
-	{
-		$$ = Nod(OTCHAN, $3, nil);
-		$$.Etype = Csend;
-	}
-|	LMAP '[' ntype ']' ntype
-	{
-		$$ = Nod(OTMAP, $3, $5);
-	}
-|	structtype
-|	interfacetype
-
-ptrtype:
-	'*' ntype
-	{
-		$$ = Nod(OIND, $2, nil);
-	}
-
-recvchantype:
-	LCOMM LCHAN ntype
-	{
-		$$ = Nod(OTCHAN, $3, nil);
-		$$.Etype = Crecv;
-	}
-
-structtype:
-	LSTRUCT lbrace structdcl_list osemi '}'
-	{
-		$$ = Nod(OTSTRUCT, nil, nil);
-		$$.List = $3;
-		fixlbrace($2);
-	}
-|	LSTRUCT lbrace '}'
-	{
-		$$ = Nod(OTSTRUCT, nil, nil);
-		fixlbrace($2);
-	}
-
-interfacetype:
-	LINTERFACE lbrace interfacedcl_list osemi '}'
-	{
-		$$ = Nod(OTINTER, nil, nil);
-		$$.List = $3;
-		fixlbrace($2);
-	}
-|	LINTERFACE lbrace '}'
-	{
-		$$ = Nod(OTINTER, nil, nil);
-		fixlbrace($2);
-	}
-
-/*
- * function stuff
- * all in one place to show how crappy it all is
- */
-xfndcl:
-	LFUNC fndcl fnbody
-	{
-		$$ = $2;
-		if $$ == nil {
-			break;
-		}
-		if noescape && $3 != nil {
-			Yyerror("can only use //go:noescape with external func implementations");
-		}
-		$$.Nbody = $3;
-		$$.Func.Endlineno = lineno;
-		$$.Noescape = noescape;
-		$$.Func.Norace = norace;
-		$$.Func.Nosplit = nosplit;
-		$$.Func.Noinline = noinline;
-		$$.Func.Nowritebarrier = nowritebarrier;
-		$$.Func.Nowritebarrierrec = nowritebarrierrec;
-		$$.Func.Systemstack = systemstack;
-		funcbody($$);
-	}
-
-fndcl:
-	sym '(' oarg_type_list_ocomma ')' fnres
-	{
-		var t *Node
-
-		$$ = nil;
-		$3 = checkarglist($3, 1);
-
-		if $1.Name == "init" {
-			$1 = renameinit();
-			if $3 != nil || $5 != nil {
-				Yyerror("func init must have no arguments and no return values");
-			}
-		}
-		if localpkg.Name == "main" && $1.Name == "main" {
-			if $3 != nil || $5 != nil {
-				Yyerror("func main must have no arguments and no return values");
-			}
-		}
-
-		t = Nod(OTFUNC, nil, nil);
-		t.List = $3;
-		t.Rlist = $5;
-
-		$$ = Nod(ODCLFUNC, nil, nil);
-		$$.Func.Nname = newfuncname($1);
-		$$.Func.Nname.Name.Defn = $$;
-		$$.Func.Nname.Name.Param.Ntype = t;		// TODO: check if nname already has an ntype
-		declare($$.Func.Nname, PFUNC);
-
-		funchdr($$);
-	}
-|	'(' oarg_type_list_ocomma ')' sym '(' oarg_type_list_ocomma ')' fnres
-	{
-		var rcvr, t *Node
-
-		$$ = nil;
-		$2 = checkarglist($2, 0);
-		$6 = checkarglist($6, 1);
-
-		if $2 == nil {
-			Yyerror("method has no receiver");
-			break;
-		}
-		if $2.Next != nil {
-			Yyerror("method has multiple receivers");
-			break;
-		}
-		rcvr = $2.N;
-		if rcvr.Op != ODCLFIELD {
-			Yyerror("bad receiver in method");
-			break;
-		}
-
-		t = Nod(OTFUNC, rcvr, nil);
-		t.List = $6;
-		t.Rlist = $8;
-
-		$$ = Nod(ODCLFUNC, nil, nil);
-		$$.Func.Shortname = newfuncname($4);
-		$$.Func.Nname = methodname1($$.Func.Shortname, rcvr.Right);
-		$$.Func.Nname.Name.Defn = $$;
-		$$.Func.Nname.Name.Param.Ntype = t;
-		$$.Func.Nname.Nointerface = nointerface;
-		declare($$.Func.Nname, PFUNC);
-
-		funchdr($$);
-	}
-
-hidden_fndcl:
-	hidden_pkg_importsym '(' ohidden_funarg_list ')' ohidden_funres
-	{
-		var s *Sym
-		var t *Type
-
-		$$ = nil;
-
-		s = $1;
-		t = functype(nil, $3, $5);
-
-		importsym(s, ONAME);
-		if s.Def != nil && s.Def.Op == ONAME {
-			if Eqtype(t, s.Def.Type) {
-				dclcontext = PDISCARD;  // since we skip funchdr below
-				break;
-			}
-			Yyerror("inconsistent definition for func %v during import\n\t%v\n\t%v", s, s.Def.Type, t);
-		}
-
-		$$ = newfuncname(s);
-		$$.Type = t;
-		declare($$, PFUNC);
-
-		funchdr($$);
-	}
-|	'(' hidden_funarg_list ')' sym '(' ohidden_funarg_list ')' ohidden_funres
-	{
-		$$ = methodname1(newname($4), $2.N.Right); 
-		$$.Type = functype($2.N, $6, $8);
-
-		checkwidth($$.Type);
-		addmethod($4, $$.Type, false, nointerface);
-		nointerface = false
-		funchdr($$);
-		
-		// inl.C's inlnode in on a dotmeth node expects to find the inlineable body as
-		// (dotmeth's type).Nname.Inl, and dotmeth's type has been pulled
-		// out by typecheck's lookdot as this $$.ttype.  So by providing
-		// this back link here we avoid special casing there.
-		$$.Type.Nname = $$;
-	}
-
-fntype:
-	LFUNC '(' oarg_type_list_ocomma ')' fnres
-	{
-		$3 = checkarglist($3, 1);
-		$$ = Nod(OTFUNC, nil, nil);
-		$$.List = $3;
-		$$.Rlist = $5;
-	}
-
-fnbody:
-	{
-		$$ = nil;
-	}
-|	'{' stmt_list '}'
-	{
-		$$ = $2;
-		if $$ == nil {
-			$$ = list1(Nod(OEMPTY, nil, nil));
-		}
-	}
-
-fnres:
-	%prec NotParen
-	{
-		$$ = nil;
-	}
-|	fnret_type
-	{
-		$$ = list1(Nod(ODCLFIELD, nil, $1));
-	}
-|	'(' oarg_type_list_ocomma ')'
-	{
-		$2 = checkarglist($2, 0);
-		$$ = $2;
-	}
-
-fnlitdcl:
-	fntype
-	{
-		closurehdr($1);
-	}
-
-fnliteral:
-	fnlitdcl lbrace stmt_list '}'
-	{
-		$$ = closurebody($3);
-		fixlbrace($2);
-	}
-|	fnlitdcl error
-	{
-		$$ = closurebody(nil);
-	}
-
-/*
- * lists of things
- * note that they are left recursive
- * to conserve yacc stack. they need to
- * be reversed to interpret correctly
- */
-xdcl_list:
-	{
-		$$ = nil;
-	}
-|	xdcl_list xdcl ';'
-	{
-		$$ = concat($1, $2);
-		if nsyntaxerrors == 0 {
-			testdclstack();
-		}
-		noescape = false
-		noinline = false
-		nointerface = false
-		norace = false
-		nosplit = false
-		nowritebarrier = false
-		nowritebarrierrec = false
-		systemstack = false
-	}
-
-vardcl_list:
-	vardcl
-|	vardcl_list ';' vardcl
-	{
-		$$ = concat($1, $3);
-	}
-
-constdcl_list:
-	constdcl1
-|	constdcl_list ';' constdcl1
-	{
-		$$ = concat($1, $3);
-	}
-
-typedcl_list:
-	typedcl
-	{
-		$$ = list1($1);
-	}
-|	typedcl_list ';' typedcl
-	{
-		$$ = list($1, $3);
-	}
-
-structdcl_list:
-	structdcl
-|	structdcl_list ';' structdcl
-	{
-		$$ = concat($1, $3);
-	}
-
-interfacedcl_list:
-	interfacedcl
-	{
-		$$ = list1($1);
-	}
-|	interfacedcl_list ';' interfacedcl
-	{
-		$$ = list($1, $3);
-	}
-
-structdcl:
-	new_name_list ntype oliteral
-	{
-		var l *NodeList
-
-		var n *Node
-		l = $1;
-		if l == nil || l.N.Sym.Name == "?" {
-			// ? symbol, during import (list1(nil) == nil)
-			n = $2;
-			if n.Op == OIND {
-				n = n.Left;
-			}
-			n = embedded(n.Sym, importpkg);
-			n.Right = $2;
-			n.SetVal($3)
-			$$ = list1(n);
-			break;
-		}
-
-		for l=$1; l != nil; l=l.Next {
-			l.N = Nod(ODCLFIELD, l.N, $2);
-			l.N.SetVal($3)
-		}
-	}
-|	embed oliteral
-	{
-		$1.SetVal($2)
-		$$ = list1($1);
-	}
-|	'(' embed ')' oliteral
-	{
-		$2.SetVal($4)
-		$$ = list1($2);
-		Yyerror("cannot parenthesize embedded type");
-	}
-|	'*' embed oliteral
-	{
-		$2.Right = Nod(OIND, $2.Right, nil);
-		$2.SetVal($3)
-		$$ = list1($2);
-	}
-|	'(' '*' embed ')' oliteral
-	{
-		$3.Right = Nod(OIND, $3.Right, nil);
-		$3.SetVal($5)
-		$$ = list1($3);
-		Yyerror("cannot parenthesize embedded type");
-	}
-|	'*' '(' embed ')' oliteral
-	{
-		$3.Right = Nod(OIND, $3.Right, nil);
-		$3.SetVal($5)
-		$$ = list1($3);
-		Yyerror("cannot parenthesize embedded type");
-	}
-
-packname:
-	LNAME
-	{
-		var n *Node
-
-		$$ = $1;
-		n = oldname($1);
-		if n.Name != nil && n.Name.Pack != nil {
-			n.Name.Pack.Used = true;
-		}
-	}
-|	LNAME '.' sym
-	{
-		var pkg *Pkg
-
-		if $1.Def == nil || $1.Def.Op != OPACK {
-			Yyerror("%v is not a package", $1);
-			pkg = localpkg;
-		} else {
-			$1.Def.Used = true;
-			pkg = $1.Def.Name.Pkg;
-		}
-		$$ = restrictlookup($3.Name, pkg);
-	}
-
-embed:
-	packname
-	{
-		$$ = embedded($1, localpkg);
-	}
-
-interfacedcl:
-	new_name indcl
-	{
-		$$ = Nod(ODCLFIELD, $1, $2);
-		ifacedcl($$);
-	}
-|	packname
-	{
-		$$ = Nod(ODCLFIELD, nil, oldname($1));
-	}
-|	'(' packname ')'
-	{
-		$$ = Nod(ODCLFIELD, nil, oldname($2));
-		Yyerror("cannot parenthesize embedded type");
-	}
-
-indcl:
-	'(' oarg_type_list_ocomma ')' fnres
-	{
-		// without func keyword
-		$2 = checkarglist($2, 1);
-		$$ = Nod(OTFUNC, fakethis(), nil);
-		$$.List = $2;
-		$$.Rlist = $4;
-	}
-
-/*
- * function arguments.
- */
-arg_type:
-	name_or_type
-|	sym name_or_type
-	{
-		$$ = Nod(ONONAME, nil, nil);
-		$$.Sym = $1;
-		$$ = Nod(OKEY, $$, $2);
-	}
-|	sym dotdotdot
-	{
-		$$ = Nod(ONONAME, nil, nil);
-		$$.Sym = $1;
-		$$ = Nod(OKEY, $$, $2);
-	}
-|	dotdotdot
-
-arg_type_list:
-	arg_type
-	{
-		$$ = list1($1);
-	}
-|	arg_type_list ',' arg_type
-	{
-		$$ = list($1, $3);
-	}
-
-oarg_type_list_ocomma:
-	{
-		$$ = nil;
-	}
-|	arg_type_list ocomma
-	{
-		$$ = $1;
-	}
-
-/*
- * statement
- */
-stmt:
-	{
-		$$ = nil;
-	}
-|	compound_stmt
-|	common_dcl
-	{
-		$$ = liststmt($1);
-	}
-|	non_dcl_stmt
-|	error
-	{
-		$$ = nil;
-	}
-
-non_dcl_stmt:
-	simple_stmt
-|	for_stmt
-|	switch_stmt
-|	select_stmt
-|	if_stmt
-|	labelname ':'
-	{
-		$1 = Nod(OLABEL, $1, nil);
-		$1.Sym = dclstack;  // context, for goto restrictions
-	}
-	stmt
-	{
-		var l *NodeList
-
-		$1.Name.Defn = $4;
-		l = list1($1);
-		if $4 != nil {
-			l = list(l, $4);
-		}
-		$$ = liststmt(l);
-	}
-|	LFALL
-	{
-		// will be converted to OFALL
-		$$ = Nod(OXFALL, nil, nil);
-		$$.Xoffset = int64(block);
-	}
-|	LBREAK onew_name
-	{
-		$$ = Nod(OBREAK, $2, nil);
-	}
-|	LCONTINUE onew_name
-	{
-		$$ = Nod(OCONTINUE, $2, nil);
-	}
-|	LGO pseudocall
-	{
-		$$ = Nod(OPROC, $2, nil);
-	}
-|	LDEFER pseudocall
-	{
-		$$ = Nod(ODEFER, $2, nil);
-	}
-|	LGOTO new_name
-	{
-		$$ = Nod(OGOTO, $2, nil);
-		$$.Sym = dclstack;  // context, for goto restrictions
-	}
-|	LRETURN oexpr_list
-	{
-		$$ = Nod(ORETURN, nil, nil);
-		$$.List = $2;
-		if $$.List == nil && Curfn != nil {
-			var l *NodeList
-
-			for l=Curfn.Func.Dcl; l != nil; l=l.Next {
-				if l.N.Class == PPARAM {
-					continue;
-				}
-				if l.N.Class != PPARAMOUT {
-					break;
-				}
-				if l.N.Sym.Def != l.N {
-					Yyerror("%s is shadowed during return", l.N.Sym.Name);
-				}
-			}
-		}
-	}
-
-stmt_list:
-	stmt
-	{
-		$$ = nil;
-		if $1 != nil {
-			$$ = list1($1);
-		}
-	}
-|	stmt_list ';' stmt
-	{
-		$$ = $1;
-		if $3 != nil {
-			$$ = list($$, $3);
-		}
-	}
-
-new_name_list:
-	new_name
-	{
-		$$ = list1($1);
-	}
-|	new_name_list ',' new_name
-	{
-		$$ = list($1, $3);
-	}
-
-dcl_name_list:
-	dcl_name
-	{
-		$$ = list1($1);
-	}
-|	dcl_name_list ',' dcl_name
-	{
-		$$ = list($1, $3);
-	}
-
-expr_list:
-	expr
-	{
-		$$ = list1($1);
-	}
-|	expr_list ',' expr
-	{
-		$$ = list($1, $3);
-	}
-
-expr_or_type_list:
-	expr_or_type
-	{
-		$$ = list1($1);
-	}
-|	expr_or_type_list ',' expr_or_type
-	{
-		$$ = list($1, $3);
-	}
-
-/*
- * list of combo of keyval and val
- */
-keyval_list:
-	keyval
-	{
-		$$ = list1($1);
-	}
-|	bare_complitexpr
-	{
-		$$ = list1($1);
-	}
-|	keyval_list ',' keyval
-	{
-		$$ = list($1, $3);
-	}
-|	keyval_list ',' bare_complitexpr
-	{
-		$$ = list($1, $3);
-	}
-
-braced_keyval_list:
-	{
-		$$ = nil;
-	}
-|	keyval_list ocomma
-	{
-		$$ = $1;
-	}
-
-/*
- * optional things
- */
-osemi:
-|	';'
-
-ocomma:
-|	','
-
-oexpr:
-	{
-		$$ = nil;
-	}
-|	expr
-
-oexpr_list:
-	{
-		$$ = nil;
-	}
-|	expr_list
-
-osimple_stmt:
-	{
-		$$ = nil;
-	}
-|	simple_stmt
-
-ohidden_funarg_list:
-	{
-		$$ = nil;
-	}
-|	hidden_funarg_list
-
-ohidden_structdcl_list:
-	{
-		$$ = nil;
-	}
-|	hidden_structdcl_list
-
-ohidden_interfacedcl_list:
-	{
-		$$ = nil;
-	}
-|	hidden_interfacedcl_list
-
-oliteral:
-	{
-		$$.U = nil
-	}
-|	LLITERAL
-
-/*
- * import syntax from package header
- */
-hidden_import:
-	LIMPORT LNAME LLITERAL ';'
-	{
-		importimport($2, $3.U.(string));
-	}
-|	LVAR hidden_pkg_importsym hidden_type ';'
-	{
-		importvar($2, $3);
-	}
-|	LCONST hidden_pkg_importsym '=' hidden_constant ';'
-	{
-		importconst($2, Types[TIDEAL], $4);
-	}
-|	LCONST hidden_pkg_importsym hidden_type '=' hidden_constant ';'
-	{
-		importconst($2, $3, $5);
-	}
-|	LTYPE hidden_pkgtype hidden_type ';'
-	{
-		importtype($2, $3);
-	}
-|	LFUNC hidden_fndcl fnbody ';'
-	{
-		if $2 == nil {
-			dclcontext = PEXTERN;  // since we skip the funcbody below
-			break;
-		}
-
-		$2.Func.Inl = $3;
-
-		funcbody($2);
-		importlist = append(importlist, $2);
-
-		if Debug['E'] > 0 {
-			fmt.Printf("import [%q] func %v \n", importpkg.Path, $2)
-			if Debug['m'] > 2 && $2.Func.Inl != nil {
-				fmt.Printf("inl body:%v\n", $2.Func.Inl)
-			}
-		}
-	}
-
-hidden_pkg_importsym:
-	hidden_importsym
-	{
-		$$ = $1;
-		structpkg = $$.Pkg;
-	}
-
-hidden_pkgtype:
-	hidden_pkg_importsym
-	{
-		$$ = pkgtype($1);
-		importsym($1, OTYPE);
-	}
-
-/*
- *  importing types
- */
-
-hidden_type:
-	hidden_type_misc
-|	hidden_type_recv_chan
-|	hidden_type_func
-
-hidden_type_non_recv_chan:
-	hidden_type_misc
-|	hidden_type_func
-
-hidden_type_misc:
-	hidden_importsym
-	{
-		$$ = pkgtype($1);
-	}
-|	LNAME
-	{
-		// predefined name like uint8
-		$1 = Pkglookup($1.Name, builtinpkg);
-		if $1.Def == nil || $1.Def.Op != OTYPE {
-			Yyerror("%s is not a type", $1.Name);
-			$$ = nil;
-		} else {
-			$$ = $1.Def.Type;
-		}
-	}
-|	'[' ']' hidden_type
-	{
-		$$ = aindex(nil, $3);
-	}
-|	'[' LLITERAL ']' hidden_type
-	{
-		$$ = aindex(nodlit($2), $4);
-	}
-|	LMAP '[' hidden_type ']' hidden_type
-	{
-		$$ = maptype($3, $5);
-	}
-|	LSTRUCT '{' ohidden_structdcl_list '}'
-	{
-		$$ = tostruct($3);
-	}
-|	LINTERFACE '{' ohidden_interfacedcl_list '}'
-	{
-		$$ = tointerface($3);
-	}
-|	'*' hidden_type
-	{
-		$$ = Ptrto($2);
-	}
-|	LCHAN hidden_type_non_recv_chan
-	{
-		$$ = typ(TCHAN);
-		$$.Type = $2;
-		$$.Chan = Cboth;
-	}
-|	LCHAN '(' hidden_type_recv_chan ')'
-	{
-		$$ = typ(TCHAN);
-		$$.Type = $3;
-		$$.Chan = Cboth;
-	}
-|	LCHAN LCOMM hidden_type
-	{
-		$$ = typ(TCHAN);
-		$$.Type = $3;
-		$$.Chan = Csend;
-	}
-
-hidden_type_recv_chan:
-	LCOMM LCHAN hidden_type
-	{
-		$$ = typ(TCHAN);
-		$$.Type = $3;
-		$$.Chan = Crecv;
-	}
-
-hidden_type_func:
-	LFUNC '(' ohidden_funarg_list ')' ohidden_funres
-	{
-		$$ = functype(nil, $3, $5);
-	}
-
-hidden_funarg:
-	sym hidden_type oliteral
-	{
-		$$ = Nod(ODCLFIELD, nil, typenod($2));
-		if $1 != nil {
-			$$.Left = newname($1);
-		}
-		$$.SetVal($3)
-	}
-|	sym LDDD hidden_type oliteral
-	{
-		var t *Type
-	
-		t = typ(TARRAY);
-		t.Bound = -1;
-		t.Type = $3;
-
-		$$ = Nod(ODCLFIELD, nil, typenod(t));
-		if $1 != nil {
-			$$.Left = newname($1);
-		}
-		$$.Isddd = true;
-		$$.SetVal($4)
-	}
-
-hidden_structdcl:
-	sym hidden_type oliteral
-	{
-		var s *Sym
-		var p *Pkg
-
-		if $1 != nil && $1.Name != "?" {
-			$$ = Nod(ODCLFIELD, newname($1), typenod($2));
-			$$.SetVal($3)
-		} else {
-			s = $2.Sym;
-			if s == nil && Isptr[$2.Etype] {
-				s = $2.Type.Sym;
-			}
-			p = importpkg;
-			if $1 != nil {
-				p = $1.Pkg;
-			}
-			$$ = embedded(s, p);
-			$$.Right = typenod($2);
-			$$.SetVal($3)
-		}
-	}
-
-hidden_interfacedcl:
-	sym '(' ohidden_funarg_list ')' ohidden_funres
-	{
-		$$ = Nod(ODCLFIELD, newname($1), typenod(functype(fakethis(), $3, $5)));
-	}
-|	hidden_type
-	{
-		$$ = Nod(ODCLFIELD, nil, typenod($1));
-	}
-
-ohidden_funres:
-	{
-		$$ = nil;
-	}
-|	hidden_funres
-
-hidden_funres:
-	'(' ohidden_funarg_list ')'
-	{
-		$$ = $2;
-	}
-|	hidden_type
-	{
-		$$ = list1(Nod(ODCLFIELD, nil, typenod($1)));
-	}
-
-/*
- *  importing constants
- */
-
-hidden_literal:
-	LLITERAL
-	{
-		$$ = nodlit($1);
-	}
-|	'-' LLITERAL
-	{
-		$$ = nodlit($2);
-		switch($$.Val().Ctype()){
-		case CTINT, CTRUNE:
-			mpnegfix($$.Val().U.(*Mpint));
-			break;
-		case CTFLT:
-			mpnegflt($$.Val().U.(*Mpflt));
-			break;
-		case CTCPLX:
-			mpnegflt(&$$.Val().U.(*Mpcplx).Real);
-			mpnegflt(&$$.Val().U.(*Mpcplx).Imag);
-			break;
-		default:
-			Yyerror("bad negated constant");
-		}
-	}
-|	sym
-	{
-		$$ = oldname(Pkglookup($1.Name, builtinpkg));
-		if $$.Op != OLITERAL {
-			Yyerror("bad constant %v", $$.Sym);
-		}
-	}
-
-hidden_constant:
-	hidden_literal
-|	'(' hidden_literal '+' hidden_literal ')'
-	{
-		if $2.Val().Ctype() == CTRUNE && $4.Val().Ctype() == CTINT {
-			$$ = $2;
-			mpaddfixfix($2.Val().U.(*Mpint), $4.Val().U.(*Mpint), 0);
-			break;
-		}
-		$4.Val().U.(*Mpcplx).Real = $4.Val().U.(*Mpcplx).Imag;
-		Mpmovecflt(&$4.Val().U.(*Mpcplx).Imag, 0.0);
-		$$ = nodcplxlit($2.Val(), $4.Val());
-	}
-
-hidden_import_list:
-|	hidden_import_list hidden_import
-
-hidden_funarg_list:
-	hidden_funarg
-	{
-		$$ = list1($1);
-	}
-|	hidden_funarg_list ',' hidden_funarg
-	{
-		$$ = list($1, $3);
-	}
-
-hidden_structdcl_list:
-	hidden_structdcl
-	{
-		$$ = list1($1);
-	}
-|	hidden_structdcl_list ';' hidden_structdcl
-	{
-		$$ = list($1, $3);
-	}
-
-hidden_interfacedcl_list:
-	hidden_interfacedcl
-	{
-		$$ = list1($1);
-	}
-|	hidden_interfacedcl_list ';' hidden_interfacedcl
-	{
-		$$ = list($1, $3);
-	}
-
-%%
-func fixlbrace(lbr int) {
-	// If the opening brace was an LBODY,
-	// set up for another one now that we're done.
-	// See comment in lex.C about loophack.
-	if lbr == LBODY {
-		loophack = true
-	}
-}
diff --git a/src/cmd/compile/internal/gc/lex.go b/src/cmd/compile/internal/gc/lex.go
index 3617493815..07d0bb8257 100644
--- a/src/cmd/compile/internal/gc/lex.go
+++ b/src/cmd/compile/internal/gc/lex.go
@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:generate go tool yacc go.y
 //go:generate go run mkbuiltin.go runtime unsafe
 
 package gc
@@ -203,7 +202,6 @@ func Main() {
 	obj.Flagcount("m", "print optimization decisions", &Debug['m'])
 	obj.Flagcount("msan", "build code compatible with C/C++ memory sanitizer", &flag_msan)
 	obj.Flagcount("newexport", "use new export format", &newexport) // TODO(gri) remove eventually (issue 13241)
-	obj.Flagcount("oldparser", "use old parser", &oldparser)        // TODO(gri) remove eventually (issue 13240)
 	obj.Flagcount("nolocalimports", "reject local (relative) imports", &nolocalimports)
 	obj.Flagstr("o", "write output to `file`", &outfile)
 	obj.Flagstr("p", "set expected package import `path`", &myimportpath)
@@ -318,16 +316,8 @@ func Main() {
 	lexlineno = 1
 	const BOM = 0xFEFF
 
-	// Uncomment the line below to temporarily switch the compiler back
-	// to the yacc-based parser. Short-term work-around for issues with
-	// the new recursive-descent parser for which setting -oldparser is
-	// not sufficient.
-	// TODO(gri) remove this eventually (issue 13240)
-	//
-	// oldparser = 1
-
 	for _, infile = range flag.Args() {
-		if trace && Debug['x'] != 0 && oldparser == 0 {
+		if trace && Debug['x'] != 0 {
 			fmt.Printf("--- %s ---\n", infile)
 		}
 
@@ -844,9 +834,7 @@ func importfile(f *Val, line int) {
 		curio.nlsemi = false
 		typecheckok = true
 
-		if oldparser == 0 {
-			push_parser()
-		}
+		push_parser()
 
 	case 'B':
 		// new export format
@@ -867,9 +855,7 @@ func importfile(f *Val, line int) {
 }
 
 func unimportfile() {
-	if oldparser == 0 {
-		pop_parser()
-	}
+	pop_parser()
 
 	if curio.bin != nil {
 		obj.Bterm(curio.bin)
@@ -901,9 +887,7 @@ func cannedimports(file string, cp string) {
 	typecheckok = true
 	incannedimport = 1
 
-	if oldparser == 0 {
-		push_parser()
-	}
+	push_parser()
 }
 
 func isSpace(c int) bool {
@@ -945,12 +929,64 @@ func isfrog(c int) bool {
 	return false
 }
 
-type Loophack struct {
-	next *Loophack
-	v    bool
+type yySymType struct {
+	yys  int
+	node *Node
+	list *NodeList
+	typ  *Type
+	sym  *Sym
+	val  Val
+	i    int
 }
 
-var _yylex_lstk *Loophack
+const (
+	LLITERAL = 57346 + iota
+	LASOP
+	LCOLAS
+	LBREAK
+	LCASE
+	LCHAN
+	LCONST
+	LCONTINUE
+	LDDD
+	LDEFAULT
+	LDEFER
+	LELSE
+	LFALL
+	LFOR
+	LFUNC
+	LGO
+	LGOTO
+	LIF
+	LIMPORT
+	LINTERFACE
+	LMAP
+	LNAME
+	LPACKAGE
+	LRANGE
+	LRETURN
+	LSELECT
+	LSTRUCT
+	LSWITCH
+	LTYPE
+	LVAR
+	LANDAND
+	LANDNOT
+	LBODY
+	LCOMM
+	LDEC
+	LEQ
+	LGE
+	LGT
+	LIGNORE
+	LINC
+	LLE
+	LLSH
+	LLT
+	LNE
+	LOROR
+	LRSH
+)
 
 func _yylex(yylval *yySymType) int32 {
 	var c1 int
@@ -958,7 +994,6 @@ func _yylex(yylval *yySymType) int32 {
 	var v int64
 	var cp *bytes.Buffer
 	var s *Sym
-	var h *Loophack
 	var str string
 
 	prevlineno = lineno
@@ -1367,61 +1402,6 @@ l0:
 			goto asop
 		}
 
-		// clumsy dance:
-		// to implement rule that disallows
-		//	if T{1}[0] { ... }
-		// but allows
-		// 	if (T{1}[0]) { ... }
-		// the block bodies for if/for/switch/select
-		// begin with an LBODY token, not '{'.
-		//
-		// when we see the keyword, the next
-		// non-parenthesized '{' becomes an LBODY.
-		// loophack is normally false.
-		// a keyword sets it to true.
-		// parens push loophack onto a stack and go back to false.
-		// a '{' with loophack == true becomes LBODY and disables loophack.
-		//
-		// I said it was clumsy.
-		//
-		// We only need the loophack when running with -oldparser.
-	case '(', '[':
-		if oldparser != 0 && (loophack || _yylex_lstk != nil) {
-			h = new(Loophack)
-			if h == nil {
-				Flusherrors()
-				Yyerror("out of memory")
-				errorexit()
-			}
-
-			h.v = loophack
-			h.next = _yylex_lstk
-			_yylex_lstk = h
-			loophack = false
-		}
-
-		goto lx
-
-	case ')', ']':
-		if oldparser != 0 && _yylex_lstk != nil {
-			h = _yylex_lstk
-			loophack = h.v
-			_yylex_lstk = h.next
-		}
-
-		goto lx
-
-	case '{':
-		if oldparser != 0 && loophack {
-			if Debug['x'] != 0 {
-				fmt.Printf("%v lex: LBODY\n", Ctxt.Line(int(lexlineno)))
-			}
-			loophack = false
-			return LBODY
-		}
-
-		goto lx
-
 	default:
 		goto lx
 	}
@@ -1485,14 +1465,8 @@ talph:
 	ungetc(c)
 
 	s = LookupBytes(lexbuf.Bytes())
-	switch s.Lexical {
-	case LIGNORE:
+	if s.Lexical == LIGNORE {
 		goto l0
-
-	case LFOR, LIF, LSWITCH, LSELECT:
-		if oldparser != 0 {
-			loophack = true // see comment about loophack above
-		}
 	}
 
 	if Debug['x'] != 0 {
@@ -1934,18 +1908,11 @@ func (yy) Error(msg string) {
 	Yyerror("%s", msg)
 }
 
-var oldparser int // if set, theparser is used (otherwise we use the recursive-descent parser)
-var theparser yyParser
 var parsing bool
 
 func yyparse() {
 	parsing = true
-	if oldparser != 0 {
-		theparser = yyNewParser()
-		theparser.Parse(yy{})
-	} else {
-		parse_file()
-	}
+	parse_file()
 	parsing = false
 }
 
@@ -2617,20 +2584,6 @@ var yytfix = map[string]string{
 	"','": "comma",
 }
 
-func init() {
-	yyErrorVerbose = true
-
-	for i, s := range yyToknames {
-		// Apply yytfix if possible.
-		if fix, ok := yytfix[s]; ok {
-			yyToknames[i] = fix
-		} else if len(s) == 3 && s[0] == '\'' && s[2] == '\'' {
-			// Turn 'x' into x.
-			yyToknames[i] = s[1:2]
-		}
-	}
-}
-
 func pkgnotused(lineno int, path string, name string) {
 	// If the package was imported with a name other than the final
 	// import path element, show it explicitly in the error message.
diff --git a/src/cmd/compile/internal/gc/parser.go b/src/cmd/compile/internal/gc/parser.go
index 8cad440b35..5d2e4c3114 100644
--- a/src/cmd/compile/internal/gc/parser.go
+++ b/src/cmd/compile/internal/gc/parser.go
@@ -229,55 +229,52 @@ func tokstring(tok int32) string {
 }
 
 var tokstrings = map[int32]string{
-	LLITERAL:           "LLITERAL",
-	LASOP:              "op=",
-	LCOLAS:             ":=",
-	LBREAK:             "break",
-	LCASE:              "case",
-	LCHAN:              "chan",
-	LCONST:             "const",
-	LCONTINUE:          "continue",
-	LDDD:               "...",
-	LDEFAULT:           "default",
-	LDEFER:             "defer",
-	LELSE:              "else",
-	LFALL:              "fallthrough",
-	LFOR:               "for",
-	LFUNC:              "func",
-	LGO:                "go",
-	LGOTO:              "goto",
-	LIF:                "if",
-	LIMPORT:            "import",
-	LINTERFACE:         "interface",
-	LMAP:               "map",
-	LNAME:              "LNAME",
-	LPACKAGE:           "package",
-	LRANGE:             "range",
-	LRETURN:            "return",
-	LSELECT:            "select",
-	LSTRUCT:            "struct",
-	LSWITCH:            "switch",
-	LTYPE:              "type",
-	LVAR:               "var",
-	LANDAND:            "&&",
-	LANDNOT:            "&^",
-	LBODY:              "LBODY", // we should never see this one
-	LCOMM:              "<-",
-	LDEC:               "--",
-	LEQ:                "==",
-	LGE:                ">=",
-	LGT:                ">",
-	LIGNORE:            "LIGNORE", // we should never see this one
-	LINC:               "++",
-	LLE:                "<=",
-	LLSH:               "<<",
-	LLT:                "<",
-	LNE:                "!=",
-	LOROR:              "||",
-	LRSH:               ">>",
-	NotPackage:         "NotPackage",         // we should never see this one
-	NotParen:           "NotParen",           // we should never see this one
-	PreferToRightParen: "PreferToRightParen", // we should never see this one
+	LLITERAL:   "LLITERAL",
+	LASOP:      "op=",
+	LCOLAS:     ":=",
+	LBREAK:     "break",
+	LCASE:      "case",
+	LCHAN:      "chan",
+	LCONST:     "const",
+	LCONTINUE:  "continue",
+	LDDD:       "...",
+	LDEFAULT:   "default",
+	LDEFER:     "defer",
+	LELSE:      "else",
+	LFALL:      "fallthrough",
+	LFOR:       "for",
+	LFUNC:      "func",
+	LGO:        "go",
+	LGOTO:      "goto",
+	LIF:        "if",
+	LIMPORT:    "import",
+	LINTERFACE: "interface",
+	LMAP:       "map",
+	LNAME:      "LNAME",
+	LPACKAGE:   "package",
+	LRANGE:     "range",
+	LRETURN:    "return",
+	LSELECT:    "select",
+	LSTRUCT:    "struct",
+	LSWITCH:    "switch",
+	LTYPE:      "type",
+	LVAR:       "var",
+	LANDAND:    "&&",
+	LANDNOT:    "&^",
+	LBODY:      "LBODY", // we should never see this one
+	LCOMM:      "<-",
+	LDEC:       "--",
+	LEQ:        "==",
+	LGE:        ">=",
+	LGT:        ">",
+	LIGNORE:    "LIGNORE", // we should never see this one
+	LINC:       "++",
+	LLE:        "<=",
+	LLSH:       "<<",
+	LLT:        "<",
+	LNE:        "!=",
+	LOROR:      "||",
+	LRSH:       ">>",
 }
 
 // usage: defer p.trace(msg)()
diff --git a/src/cmd/compile/internal/gc/subr.go b/src/cmd/compile/internal/gc/subr.go
index 573a6e4c8a..4d355517a3 100644
--- a/src/cmd/compile/internal/gc/subr.go
+++ b/src/cmd/compile/internal/gc/subr.go
@@ -34,10 +34,6 @@ func errorexit() {
 }
 
 func parserline() int {
-	if oldparser != 0 && parsing && theparser.Lookahead() > 0 {
-		// parser has one symbol lookahead
-		return int(prevlineno)
-	}
 	return int(lineno)
 }
 
diff --git a/src/cmd/compile/internal/gc/y.go b/src/cmd/compile/internal/gc/y.go
deleted file mode 100644
index c40083000d..0000000000
--- a/src/cmd/compile/internal/gc/y.go
+++ /dev/null
@@ -1,3536 +0,0 @@
-//line go.y:21
-package gc
-
-import __yyfmt__ "fmt"
-
-//line go.y:21
-import (
-	"fmt"
-	"strings"
-)
-
-//line go.y:28
-type yySymType struct {
-	yys  int
-	node *Node
-	list *NodeList
-	typ  *Type
-	sym  *Sym
-	val  Val
-	i    int
-}
-
-const LLITERAL = 57346
-const LASOP = 57347
-const LCOLAS = 57348
-const LBREAK = 57349
-const LCASE = 57350
-const LCHAN = 57351
-const LCONST = 57352
-const LCONTINUE = 57353
-const LDDD = 57354
-const LDEFAULT = 57355
-const LDEFER = 57356
-const LELSE = 57357
-const LFALL = 57358
-const LFOR = 57359
-const LFUNC = 57360
-const LGO = 57361
-const LGOTO = 57362
-const LIF = 57363
-const LIMPORT = 57364
-const LINTERFACE = 57365
-const LMAP = 57366
-const LNAME = 57367
-const LPACKAGE = 57368
-const LRANGE = 57369
-const LRETURN = 57370
-const LSELECT = 57371
-const LSTRUCT = 57372
-const LSWITCH = 57373
-const LTYPE = 57374
-const LVAR = 57375
-const LANDAND = 57376
-const LANDNOT = 57377
-const LBODY = 57378
-const LCOMM = 57379
-const LDEC = 57380
-const LEQ = 57381
-const LGE = 57382
-const LGT = 57383
-const LIGNORE = 57384
-const LINC = 57385
-const LLE = 57386
-const LLSH = 57387
-const LLT = 57388
-const LNE = 57389
-const LOROR = 57390
-const LRSH = 57391
-const NotPackage = 57392
-const NotParen = 57393
-const PreferToRightParen = 57394
-
-var yyToknames = [...]string{
-	"$end",
-	"error",
-	"$unk",
-	"LLITERAL",
-	"LASOP",
-	"LCOLAS",
-	"LBREAK",
-	"LCASE",
-	"LCHAN",
-	"LCONST",
-	"LCONTINUE",
-	"LDDD",
-	"LDEFAULT",
-	"LDEFER",
-	"LELSE",
-	"LFALL",
-	"LFOR",
-	"LFUNC",
-	"LGO",
-	"LGOTO",
-	"LIF",
-	"LIMPORT",
-	"LINTERFACE",
-	"LMAP",
-	"LNAME",
-	"LPACKAGE",
-	"LRANGE",
-	"LRETURN",
-	"LSELECT",
-	"LSTRUCT",
-	"LSWITCH",
-	"LTYPE",
-	"LVAR",
-	"LANDAND",
-	"LANDNOT",
-	"LBODY",
-	"LCOMM",
-	"LDEC",
-	"LEQ",
-	"LGE",
-	"LGT",
-	"LIGNORE",
-	"LINC",
-	"LLE",
-	"LLSH",
-	"LLT",
-	"LNE",
-	"LOROR",
-	"LRSH",
-	"'+'",
-	"'-'",
-	"'|'",
-	"'^'",
-	"'*'",
-	"'/'",
-	"'%'",
-	"'&'",
-	"NotPackage",
-	"NotParen",
-	"'('",
-	"')'",
-	"PreferToRightParen",
-	"';'",
-	"'.'",
-	"'$'",
-	"'='",
-	"':'",
-	"'{'",
-	"'}'",
-	"'!'",
-	"'~'",
-	"'['",
-	"']'",
-	"'?'",
-	"'@'",
-	"','",
-}
-var yyStatenames = [...]string{}
-
-const yyEofCode = 1
-const yyErrCode = 2
-const yyMaxDepth = 200
-
-//line go.y:2317
-func fixlbrace(lbr int) {
-	// If the opening brace was an LBODY,
-	// set up for another one now that we're done.
-	// See comment in lex.C about loophack.
-	if lbr == LBODY {
-		loophack = true
-	}
-}
-
-//line yacctab:1
-var yyExca = [...]int{
-	-1, 1,
-	1, -1,
-	-2, 0,
-	-1, 17,
-	1, 1,
-	63, 23,
-	-2, 0,
-	-1, 48,
-	6, 276,
-	66, 276,
-	76, 276,
-	-2, 49,
-	-1, 56,
-	67, 153,
-	-2, 162,
-	-1, 74,
-	60, 181,
-	-2, 215,
-	-1, 75,
-	60, 182,
-	-2, 183,
-	-1, 121,
-	60, 134,
-	64, 134,
-	68, 134,
-	72, 134,
-	-2, 266,
-	-1, 125,
-	60, 134,
-	64, 134,
-	68, 134,
-	72, 134,
-	-2, 267,
-	-1, 176,
-	2, 215,
-	36, 215,
-	60, 181,
-	68, 215,
-	-2, 173,
-	-1, 177,
-	36, 183,
-	60, 182,
-	68, 183,
-	-2, 174,
-	-1, 184,
-	63, 251,
-	69, 251,
-	-2, 0,
-	-1, 242,
-	63, 251,
-	69, 251,
-	-2, 0,
-	-1, 252,
-	8, 251,
-	13, 251,
-	63, 251,
-	69, 251,
-	-2, 0,
-	-1, 325,
-	4, 236,
-	63, 236,
-	69, 236,
-	-2, 157,
-	-1, 403,
-	67, 144,
-	-2, 142,
-	-1, 408,
-	36, 176,
-	60, 176,
-	68, 176,
-	-2, 167,
-	-1, 409,
-	36, 177,
-	60, 177,
-	68, 177,
-	-2, 168,
-	-1, 410,
-	36, 178,
-	60, 178,
-	68, 178,
-	-2, 169,
-	-1, 411,
-	36, 179,
-	60, 179,
-	68, 179,
-	-2, 170,
-	-1, 417,
-	8, 251,
-	13, 251,
-	63, 251,
-	69, 251,
-	-2, 0,
-	-1, 418,
-	63, 251,
-	69, 251,
-	-2, 0,
-	-1, 498,
-	63, 251,
-	69, 251,
-	-2, 0,
-	-1, 553,
-	60, 157,
-	-2, 318,
-	-1, 554,
-	60, 158,
-	-2, 317,
-	-1, 579,
-	8, 251,
-	13, 251,
-	63, 251,
-	69, 251,
-	-2, 0,
-	-1, 593,
-	36, 180,
-	60, 180,
-	68, 180,
-	-2, 171,
-	-1, 632,
-	67, 145,
-	-2, 143,
-}
-
-const yyNprod = 352
-const yyPrivate = 57344
-
-var yyTokenNames []string
-var yyStates []string
-
-const yyLast = 2321
-
-var yyAct = [...]int{
-
-	74, 304, 381, 291, 487, 611, 459, 285, 546, 229,
-	398, 467, 34, 296, 75, 302, 402, 550, 290, 186,
-	286, 479, 458, 356, 400, 401, 389, 338, 103, 318,
-	328, 245, 303, 339, 324, 243, 337, 468, 101, 374,
-	109, 104, 248, 85, 14, 246, 241, 174, 480, 212,
-	6, 181, 325, 155, 470, 469, 325, 385, 332, 517,
-	108, 627, 414, 373, 13, 208, 585, 11, 176, 461,
-	470, 172, 584, 461, 652, 600, 230, 219, 392, 191,
-	106, 322, 177, 542, 226, 322, 423, 321, 193, 88,
-	10, 321, 13, 192, 10, 310, 317, 309, 154, 160,
-	447, 12, 13, 161, 227, 12, 13, 446, 198, 227,
-	10, 162, 227, 320, 209, 227, 462, 384, 228, 663,
-	462, 626, 625, 228, 55, 460, 228, 155, 184, 228,
-	203, 628, 205, 633, 199, 200, 108, 632, 204, 12,
-	13, 222, 393, 12, 13, 86, 214, 216, 218, 90,
-	604, 239, 175, 10, 449, 194, 233, 88, 153, 12,
-	13, 176, 661, 213, 213, 213, 213, 288, 155, 282,
-	282, 601, 282, 537, 417, 177, 445, 280, 10, 176,
-	621, 528, 295, 163, 164, 165, 166, 167, 168, 169,
-	170, 227, 417, 177, 417, 301, 227, 227, 594, 227,
-	485, 88, 12, 13, 185, 228, 417, 524, 48, 308,
-	228, 228, 416, 228, 202, 347, 516, 90, 472, 448,
-	405, 428, 10, 242, 349, 171, 298, 12, 13, 345,
-	343, 341, 227, 581, 507, 330, 344, 507, 182, 508,
-	519, 397, 508, 348, 116, 175, 228, 367, 227, 334,
-	464, 227, 227, 360, 227, 129, 325, 355, 371, 210,
-	346, 90, 228, 175, 353, 228, 228, 362, 228, 182,
-	183, 12, 13, 54, 435, 314, 173, 10, 342, 358,
-	340, 13, 340, 340, 91, 379, 188, 378, 325, 380,
-	376, 331, 365, 375, 176, 623, 369, 394, 505, 417,
-	408, 183, 610, 163, 170, 12, 13, 605, 177, 410,
-	227, 227, 415, 238, 409, 118, 118, 602, 575, 126,
-	227, 569, 559, 331, 228, 228, 12, 13, 466, 465,
-	391, 444, 327, 443, 228, 437, 425, 12, 13, 254,
-	413, 388, 255, 256, 257, 258, 259, 260, 261, 262,
-	263, 264, 265, 266, 267, 268, 269, 270, 271, 272,
-	273, 274, 129, 129, 277, 227, 440, 383, 370, 173,
-	366, 294, 359, 491, 227, 424, 411, 442, 175, 228,
-	10, 455, 493, 333, 454, 436, 100, 492, 228, 300,
-	99, 84, 10, 509, 176, 481, 282, 512, 474, 20,
-	657, 282, 656, 655, 499, 495, 614, 227, 177, 503,
-	654, 484, 10, 227, 340, 340, 234, 515, 520, 521,
-	646, 228, 620, 617, 227, 340, 608, 228, 221, 12,
-	13, 607, 511, 129, 526, 430, 433, 69, 228, 518,
-	227, 12, 13, 598, 597, 129, 596, 293, 96, 494,
-	525, 593, 583, 563, 228, 529, 98, 490, 540, 532,
-	94, 12, 13, 523, 514, 513, 510, 560, 538, 558,
-	97, 95, 330, 323, 329, 539, 497, 496, 175, 483,
-	555, 477, 227, 476, 10, 473, 441, 562, 432, 421,
-	227, 372, 297, 386, 565, 615, 228, 491, 491, 606,
-	571, 573, 173, 92, 228, 403, 493, 493, 176, 10,
-	403, 492, 492, 340, 574, 340, 197, 554, 10, 114,
-	457, 340, 177, 434, 340, 572, 580, 439, 10, 578,
-	354, 591, 592, 12, 13, 253, 588, 568, 251, 180,
-	340, 197, 586, 587, 110, 533, 197, 609, 535, 197,
-	432, 348, 197, 107, 117, 382, 70, 502, 12, 13,
-	287, 7, 5, 102, 432, 211, 24, 12, 13, 129,
-	16, 19, 227, 494, 494, 651, 129, 12, 13, 431,
-	456, 490, 490, 364, 429, 561, 228, 335, 282, 207,
-	206, 618, 175, 129, 129, 624, 622, 120, 481, 491,
-	121, 125, 173, 636, 631, 630, 188, 619, 493, 21,
-	340, 638, 305, 492, 642, 340, 643, 306, 641, 336,
-	57, 351, 352, 640, 93, 644, 252, 645, 197, 176,
-	26, 340, 512, 197, 197, 28, 197, 76, 158, 387,
-	157, 666, 653, 177, 582, 390, 159, 491, 530, 156,
-	498, 658, 579, 662, 418, 534, 493, 31, 22, 15,
-	664, 492, 23, 665, 122, 122, 201, 18, 340, 197,
-	668, 3, 123, 554, 667, 494, 340, 8, 9, 282,
-	4, 2, 1, 490, 451, 197, 215, 544, 197, 197,
-	56, 197, 89, 566, 545, 548, 549, 612, 488, 323,
-	249, 531, 189, 105, 105, 112, 115, 80, 81, 576,
-	577, 329, 438, 175, 119, 119, 173, 72, 119, 71,
-	237, 478, 340, 494, 149, 340, 403, 316, 589, 403,
-	403, 490, 220, 326, 150, 244, 649, 197, 151, 141,
-	142, 143, 144, 145, 146, 147, 148, 197, 197, 629,
-	650, 127, 17, 450, 595, 399, 319, 197, 25, 89,
-	27, 36, 37, 78, 471, 281, 49, 66, 111, 39,
-	38, 35, 124, 279, 278, 105, 149, 83, 79, 10,
-	105, 73, 217, 112, 82, 113, 150, 247, 504, 616,
-	151, 232, 506, 87, 188, 145, 146, 147, 148, 0,
-	0, 0, 197, 0, 223, 0, 0, 0, 196, 235,
-	197, 197, 240, 128, 231, 0, 0, 0, 634, 635,
-	236, 0, 0, 0, 0, 639, 77, 0, 12, 13,
-	225, 0, 0, 0, 292, 647, 648, 173, 0, 0,
-	403, 0, 0, 0, 197, 0, 0, 0, 0, 0,
-	197, 0, 541, 0, 543, 0, 552, 56, 0, 0,
-	556, 197, 0, 557, 0, 0, 0, 347, 0, 0,
-	0, 0, 119, 119, 0, 0, 349, 197, 0, 567,
-	0, 345, 343, 341, 0, 0, 0, 0, 344, 0,
-	0, 311, 357, 0, 0, 348, 312, 313, 105, 315,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 346, 0, 0, 56, 0, 0, 613, 197,
-	275, 276, 0, 283, 247, 56, 247, 197, 0, 0,
-	342, 0, 363, 13, 197, 197, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 599,
-	0, 377, 134, 149, 603, 152, 0, 135, 139, 140,
-	0, 0, 138, 150, 137, 136, 133, 151, 141, 142,
-	143, 144, 145, 146, 147, 148, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 422, 0, 0,
-	0, 361, 0, 0, 414, 0, 0, 0, 0, 0,
-	407, 0, 0, 368, 0, 0, 89, 637, 0, 197,
-	419, 420, 552, 0, 0, 0, 0, 0, 0, 347,
-	426, 0, 0, 463, 0, 0, 0, 357, 349, 0,
-	0, 0, 105, 345, 343, 341, 197, 0, 0, 105,
-	344, 0, 0, 112, 0, 486, 247, 348, 0, 0,
-	0, 0, 0, 0, 0, 0, 134, 149, 0, 152,
-	0, 135, 139, 140, 346, 407, 138, 150, 137, 136,
-	133, 151, 141, 142, 143, 144, 145, 146, 147, 148,
-	0, 0, 342, 0, 197, 13, 0, 0, 0, 0,
-	56, 56, 0, 0, 0, 396, 0, 0, 119, 0,
-	119, 0, 0, 0, 0, 0, 0, 311, 536, 0,
-	119, 0, 247, 522, 0, 0, 0, 0, 0, 0,
-	0, 547, 551, 0, 527, 0, 0, 475, 0, 0,
-	357, 0, 0, 463, 482, 0, 0, 463, 0, 0,
-	0, 0, 564, 357, 0, 0, 0, 0, 0, 0,
-	0, 275, 276, 0, 0, 0, 0, 0, 307, 0,
-	68, 0, 247, 41, 0, 78, 47, 42, 0, 0,
-	44, 56, 40, 50, 124, 43, 45, 53, 0, 83,
-	79, 10, 570, 0, 46, 52, 82, 51, 32, 30,
-	0, 0, 0, 65, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 60, 61, 0, 64,
-	58, 0, 0, 59, 0, 0, 67, 0, 0, 0,
-	0, 0, 0, 0, 308, 0, 62, 63, 77, 0,
-	12, 13, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 29, 105, 68, 247, 0, 41, 0, 78, 47,
-	42, 0, 56, 44, 0, 40, 50, 33, 43, 45,
-	53, 0, 83, 79, 10, 0, 0, 46, 52, 82,
-	51, 32, 30, 0, 0, 547, 65, 0, 551, 357,
-	0, 0, 463, 0, 0, 0, 357, 0, 357, 60,
-	61, 0, 64, 58, 0, 0, 59, 0, 68, 67,
-	0, 0, 0, 78, 0, 0, 0, 0, 0, 62,
-	63, 77, 124, 12, 13, 0, 0, 83, 79, 10,
-	68, 0, 0, 0, 82, 78, 0, 0, 0, 0,
-	0, 65, 0, 0, 124, 0, 0, 0, 0, 83,
-	79, 10, 0, 0, 60, 61, 82, 64, 58, 0,
-	0, 59, 0, 68, 67, 0, 0, 0, 78, 0,
-	0, 0, 404, 0, 62, 63, 77, 124, 12, 13,
-	0, 0, 83, 79, 10, 0, 67, 0, 0, 82,
-	0, 0, 0, 0, 0, 0, 65, 0, 77, 0,
-	12, 13, 0, 0, 0, 0, 0, 0, 0, 60,
-	61, 0, 64, 58, 0, 0, 59, 0, 68, 67,
-	0, 0, 0, 78, 0, 0, 0, 590, 0, 62,
-	63, 77, 124, 12, 13, 0, 0, 83, 79, 10,
-	0, 501, 0, 0, 82, 0, 0, 0, 0, 0,
-	0, 65, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 60, 61, 0, 64, 58, 0,
-	0, 59, 0, 68, 67, 0, 0, 0, 78, 0,
-	0, 0, 0, 0, 62, 63, 77, 124, 12, 13,
-	0, 0, 83, 79, 10, 0, 500, 0, 0, 82,
-	0, 0, 0, 0, 0, 0, 65, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 60,
-	61, 0, 64, 58, 0, 0, 59, 0, 68, 67,
-	0, 0, 0, 78, 0, 0, 0, 78, 0, 62,
-	63, 77, 124, 12, 13, 0, 124, 83, 79, 10,
-	0, 83, 79, 10, 82, 0, 395, 0, 82, 0,
-	0, 179, 0, 0, 0, 232, 0, 0, 0, 0,
-	0, 68, 0, 0, 60, 61, 78, 64, 178, 0,
-	0, 59, 196, 0, 67, 124, 0, 0, 489, 0,
-	83, 79, 10, 0, 62, 63, 77, 82, 12, 13,
-	77, 0, 12, 13, 179, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 60, 61, 0,
-	64, 178, 0, 0, 59, 0, 68, 67, 289, 0,
-	0, 78, 0, 0, 0, 0, 0, 62, 63, 77,
-	124, 12, 13, 0, 0, 83, 79, 10, 0, 284,
-	0, 0, 82, 0, 0, 0, 0, 0, 0, 65,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 68,
-	0, 0, 60, 61, 78, 64, 58, 187, 0, 59,
-	0, 0, 67, 124, 0, 0, 0, 0, 83, 79,
-	10, 0, 62, 63, 77, 82, 12, 13, 0, 0,
-	0, 0, 65, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 68, 0, 0, 60, 61, 78, 64, 58,
-	0, 0, 59, 0, 0, 67, 124, 0, 0, 0,
-	0, 83, 79, 10, 0, 62, 63, 77, 82, 12,
-	13, 0, 0, 0, 0, 65, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 68, 0, 0, 60, 61,
-	78, 64, 58, 0, 0, 59, 0, 0, 67, 124,
-	0, 0, 0, 0, 83, 79, 10, 0, 62, 63,
-	77, 82, 12, 13, 0, 0, 0, 0, 179, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 68, 0,
-	0, 60, 61, 299, 64, 178, 0, 0, 59, 0,
-	0, 67, 124, 0, 0, 0, 0, 83, 79, 10,
-	0, 62, 63, 77, 82, 12, 13, 0, 0, 0,
-	0, 65, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 60, 61, 78, 64, 58, 0,
-	0, 59, 0, 0, 67, 124, 0, 0, 0, 0,
-	83, 79, 10, 0, 62, 63, 77, 82, 12, 13,
-	0, 78, 0, 0, 232, 0, 0, 0, 0, 0,
-	124, 0, 0, 0, 0, 83, 79, 10, 0, 0,
-	0, 196, 82, 0, 0, 0, 0, 231, 0, 232,
-	0, 0, 0, 224, 0, 0, 0, 0, 0, 77,
-	0, 12, 13, 225, 0, 0, 196, 0, 0, 0,
-	0, 0, 231, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 77, 0, 12, 13, 427, 134,
-	149, 0, 152, 0, 135, 139, 140, 0, 0, 138,
-	150, 137, 136, 133, 151, 141, 142, 143, 144, 145,
-	146, 147, 148, 134, 149, 0, 152, 0, 135, 139,
-	140, 0, 660, 138, 150, 137, 136, 133, 151, 141,
-	142, 143, 144, 145, 146, 147, 148, 0, 78, 0,
-	0, 250, 78, 0, 0, 0, 659, 124, 0, 0,
-	0, 124, 83, 79, 10, 0, 83, 79, 10, 82,
-	0, 0, 0, 82, 299, 0, 232, 0, 0, 0,
-	232, 0, 0, 124, 0, 0, 0, 0, 83, 79,
-	10, 0, 0, 196, 0, 82, 0, 196, 0, 231,
-	0, 0, 232, 231, 0, 0, 0, 78, 0, 0,
-	0, 77, 0, 12, 13, 77, 124, 12, 13, 196,
-	0, 83, 79, 10, 0, 231, 0, 0, 82, 78,
-	0, 0, 0, 347, 0, 406, 0, 77, 124, 12,
-	13, 0, 349, 83, 79, 10, 0, 345, 343, 553,
-	82, 0, 196, 0, 344, 0, 0, 190, 412, 0,
-	0, 348, 0, 0, 0, 0, 0, 0, 0, 0,
-	77, 0, 12, 13, 196, 0, 0, 0, 346, 0,
-	195, 0, 0, 0, 0, 0, 0, 0, 347, 0,
-	0, 0, 77, 0, 12, 13, 342, 349, 12, 13,
-	0, 0, 345, 343, 341, 0, 0, 0, 347, 344,
-	0, 0, 0, 0, 0, 0, 453, 349, 0, 0,
-	0, 0, 345, 343, 341, 0, 0, 0, 0, 344,
-	0, 0, 0, 346, 0, 0, 348, 0, 0, 452,
-	0, 0, 0, 130, 0, 0, 0, 0, 0, 0,
-	0, 342, 0, 346, 13, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 350, 0, 0, 0, 0,
-	0, 342, 134, 149, 13, 152, 132, 135, 139, 140,
-	0, 131, 138, 150, 137, 136, 133, 151, 141, 142,
-	143, 144, 145, 146, 147, 148, 134, 149, 0, 152,
-	0, 135, 139, 140, 0, 0, 138, 150, 137, 136,
-	133, 151, 141, 142, 143, 144, 145, 146, 147, 148,
-	134, 149, 0, 0, 0, 135, 139, 140, 0, 0,
-	138, 150, 137, 136, 133, 151, 141, 142, 143, 144,
-	145, 146, 147, 148, 134, 149, 0, 0, 0, 135,
-	139, 140, 0, 0, 138, 150, 137, 136, 0, 151,
-	141, 142, 143, 144, 145, 146, 147, 148, 149, 0,
-	0, 0, 135, 139, 140, 0, 0, 138, 150, 137,
-	136, 0, 151, 141, 142, 143, 144, 145, 146, 147,
-	148,
-}
-var yyPact = [...]int{
-
-	-1000, -1000, 536, 535, -1000, 128, -1000, 545, 549, 336,
-	-1000, -1000, -1000, 605, -1000, -1000, 541, 1239, 328, 85,
-	-1000, 220, 438, 327, -1000, 323, -1000, -1000, -1000, -1000,
-	503, 493, 484, 459, -1000, -1000, -1000, -1000, -1000, 177,
-	-1000, 128, 128, 1316, 1316, 128, 1698, -1000, 2168, 92,
-	-1000, -1000, -1000, -1000, -1000, -1000, -1000, 39, 1698, 1698,
-	1698, 1698, 1698, 1698, 1698, 1698, 157, 1741, -1000, -1000,
-	-1000, 479, 233, -1000, -1000, -1000, 202, 1655, 2050, 36,
-	-1000, -1000, 233, 233, -1000, -1000, 153, 535, -1000, 586,
-	585, 40, 194, -1000, 540, -11, -11, -11, 17, -1000,
-	-1000, -1000, 367, 1827, -1000, -1000, -1000, 355, 754, -1000,
-	252, 1973, -1000, 155, 1969, 478, -1000, -1000, -1000, -1000,
-	-1000, -1000, 39, -1000, 475, -1000, -1000, -1000, -23, 2192,
-	1698, -1000, -1000, 1698, 1698, 1698, 1698, 1698, 1698, 1698,
-	1698, 1698, 1698, 1698, 1698, 1698, 1698, 1698, 1698, 1698,
-	1698, 1698, 1698, 1698, 1698, 1698, 1612, 1698, 524, 1698,
-	1557, 387, 1698, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, 431, 2192, -1000, -1000, -1000, -1000, 1741, 1784,
-	1698, -1000, -1000, -1000, 1156, -1000, 24, 22, 2192, -1000,
-	1973, -1000, -1000, -1000, -1000, 1973, 1973, 211, 1973, 27,
-	263, 320, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, 583, 1010, -1000, 2129, 1010, -1000, 155, 470, 128,
-	309, -1000, -1000, 187, 1698, 128, -1000, -1000, -1000, -1000,
-	-1000, 1973, 574, 307, -1000, 181, 1698, 305, -1000, -1000,
-	-1000, -1000, 1156, 430, -13, -1000, -1000, 1969, -1000, -1000,
-	1973, 1969, 1156, 1969, 2192, 2240, 2263, 689, 689, 689,
-	689, 689, 689, 741, 741, 741, 741, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, 2216, -23, -23, 2192, -1000, 519,
-	304, -1000, -1000, 51, 1698, -1000, 278, -1000, -1000, -1000,
-	66, -1000, -1000, 1514, 1022, 174, 1294, 152, -1000, 2028,
-	918, 1294, 143, -1000, -1000, -1000, -1000, -1000, -1000, 1973,
-	1973, -1000, 428, -1000, 128, 13, 273, -1000, -1000, 1852,
-	580, 525, 463, -1000, -1000, 210, 272, -1000, -1000, 467,
-	-1000, 539, 425, 197, -1000, 270, 268, -1000, -1000, -1000,
-	-1000, -1000, 103, 28, 151, 86, 1010, 2109, 571, 460,
-	65, 184, 266, 265, 128, -6, -1000, 206, 424, 128,
-	1698, -23, -1000, 422, 1973, 420, 128, 1698, -23, 418,
-	128, 131, 1518, 1969, -1000, -1000, -1000, -1000, 416, -1000,
-	415, -1000, -1000, 1698, 1459, 1404, 2192, 521, 1698, 229,
-	519, 405, -14, 1741, 404, 403, -1000, 1698, 147, -17,
-	-1000, -1000, 173, 2192, -1000, -1000, 1995, -1000, -1000, -1000,
-	-1000, -1000, 1973, 402, -1000, 138, -1000, 1156, 1156, -1000,
-	-1000, -1000, -1000, 1973, 112, 31, 580, 128, -1000, -1000,
-	398, 539, 210, 580, 539, 128, 104, 231, -1000, 1969,
-	397, -1000, -1000, -1000, -1000, 1010, 10, 1010, 128, 2054,
-	-1000, -1000, 514, 1010, -1000, -1000, 1010, 128, 259, -1000,
-	69, -1000, 581, -1000, 65, -1000, -1000, 392, -22, 128,
-	128, 580, 1010, -1000, -1000, -23, -1000, -1000, 258, -1000,
-	-1000, 754, -23, -1000, -1000, -1000, 440, -1000, -1000, 1969,
-	-1000, -1000, -1000, -1000, -1000, -1000, 1518, 1518, 1156, 255,
-	1698, 1698, -1000, -1000, -1000, -1000, -1000, 1741, 166, -1000,
-	-1000, 391, -1000, -1000, -1000, -1, -1000, 1294, -1000, 1349,
-	1294, 1294, 390, -1000, -1000, -1000, 129, -1000, -1000, -1000,
-	-1000, -1000, 580, 385, -1000, 383, -1000, -1000, -1000, 382,
-	-1000, -1000, 1010, 2, 102, 254, -1000, 1010, 81, 244,
-	-1000, 439, -1000, -1000, -1000, 370, -1000, -1000, 365, -1000,
-	497, -1000, 239, 858, 435, -1000, -1000, 580, 362, 128,
-	181, 1969, 361, -1000, 111, 1698, 2192, 2192, 226, 1156,
-	55, -1000, -1000, -1000, -1000, 1698, -1000, -1000, -1000, 2192,
-	-1000, 68, 64, -1000, -1000, -1000, 580, 580, 1518, -1000,
-	1010, -1000, 128, 580, -1000, 2054, 128, -1000, 858, 69,
-	-1000, -1000, -1000, 128, -1000, 128, -1000, -1000, -1000, 359,
-	-1000, -1000, -1000, -1000, 236, -1000, 1698, 1698, 1741, 560,
-	1, 1294, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, 349, -1000, 342, 341, 339, 1518, 1919, 1895, -1000,
-	-1000, 141, -1000, 50, 858, -1000, -1000, 858, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, 1698, 519, -1000,
-}
-var yyPgo = [...]int{
-
-	0, 51, 793, 672, 34, 221, 32, 700, 31, 792,
-	788, 1, 76, 113, 208, 16, 25, 3, 785, 782,
-	781, 774, 773, 771, 7, 770, 617, 30, 24, 769,
-	437, 45, 47, 273, 41, 19, 768, 554, 20, 620,
-	767, 556, 765, 762, 12, 761, 124, 760, 40, 13,
-	758, 46, 4, 2, 28, 756, 766, 755, 10, 18,
-	752, 751, 26, 750, 749, 736, 15, 35, 735, 733,
-	38, 732, 29, 727, 612, 48, 21, 721, 720, 719,
-	717, 42, 712, 708, 707, 9, 84, 702, 14, 698,
-	0, 67, 49, 22, 6, 23, 17, 8, 697, 5,
-	37, 11, 696, 695, 694, 687, 406, 36, 686, 33,
-	27, 684, 682, 681, 680, 677, 671, 50, 44, 667,
-	43, 666, 58, 662, 659, 658, 657, 654, 652, 650,
-	649, 646, 645, 644, 641, 640, 639, 638, 39, 637,
-	626, 624,
-}
-var yyR1 = [...]int{
-
-	0, 112, 114, 114, 116, 113, 115, 115, 119, 119,
-	119, 120, 120, 121, 121, 2, 2, 2, 117, 123,
-	123, 124, 118, 50, 50, 50, 50, 50, 74, 74,
-	74, 74, 74, 74, 74, 74, 74, 74, 126, 70,
-	70, 70, 75, 75, 76, 76, 76, 36, 48, 44,
-	44, 44, 44, 44, 44, 9, 9, 9, 9, 127,
-	11, 128, 10, 62, 62, 129, 53, 42, 42, 42,
-	22, 22, 22, 21, 130, 23, 24, 24, 131, 132,
-	133, 25, 134, 63, 64, 64, 65, 65, 135, 136,
-	45, 137, 43, 14, 14, 14, 14, 14, 14, 14,
-	14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-	14, 14, 14, 14, 46, 46, 46, 46, 46, 46,
-	46, 46, 46, 41, 41, 41, 40, 40, 40, 40,
-	40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
-	49, 28, 16, 16, 15, 15, 39, 39, 17, 17,
-	31, 1, 1, 33, 34, 37, 37, 3, 3, 3,
-	91, 91, 30, 29, 81, 81, 7, 7, 7, 7,
-	7, 7, 32, 32, 32, 32, 87, 87, 87, 87,
-	87, 79, 79, 80, 89, 89, 89, 89, 89, 12,
-	12, 88, 88, 88, 88, 88, 88, 88, 85, 86,
-	84, 84, 83, 83, 47, 18, 18, 19, 19, 90,
-	51, 51, 52, 52, 52, 139, 20, 20, 60, 60,
-	71, 71, 77, 77, 78, 78, 73, 73, 69, 69,
-	72, 72, 72, 72, 72, 72, 4, 4, 13, 27,
-	27, 27, 82, 8, 8, 8, 8, 68, 68, 67,
-	67, 6, 6, 6, 6, 6, 26, 26, 26, 26,
-	26, 140, 26, 26, 26, 26, 26, 26, 26, 26,
-	66, 66, 55, 55, 54, 54, 56, 56, 59, 59,
-	57, 57, 57, 57, 58, 58, 122, 122, 138, 138,
-	35, 35, 61, 61, 38, 38, 101, 101, 105, 105,
-	103, 103, 5, 5, 141, 141, 141, 141, 141, 141,
-	92, 108, 106, 106, 106, 111, 111, 107, 107, 107,
-	107, 107, 107, 107, 107, 107, 107, 107, 110, 109,
-	95, 95, 97, 96, 96, 99, 99, 98, 98, 94,
-	94, 94, 93, 93, 125, 125, 100, 100, 104, 104,
-	102, 102,
-}
-var yyR2 = [...]int{
-
-	0, 4, 0, 3, 0, 3, 0, 3, 2, 5,
-	3, 3, 2, 1, 3, 1, 2, 2, 4, 0,
-	1, 0, 4, 0, 1, 1, 1, 1, 2, 5,
-	3, 2, 5, 7, 3, 2, 5, 3, 1, 2,
-	4, 3, 4, 3, 1, 2, 1, 1, 2, 1,
-	3, 3, 3, 2, 2, 3, 5, 5, 2, 0,
-	4, 0, 3, 0, 2, 0, 4, 4, 4, 2,
-	5, 1, 1, 2, 0, 3, 1, 3, 0, 0,
-	0, 8, 0, 5, 0, 2, 0, 2, 0, 0,
-	7, 0, 5, 1, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 1, 2, 2, 2, 2, 2,
-	2, 2, 2, 3, 5, 6, 1, 1, 3, 5,
-	5, 4, 6, 8, 1, 5, 5, 5, 7, 1,
-	0, 3, 1, 4, 1, 4, 1, 3, 1, 1,
-	1, 1, 1, 1, 1, 0, 1, 1, 1, 1,
-	4, 4, 1, 1, 1, 2, 1, 1, 1, 1,
-	1, 3, 1, 1, 1, 2, 1, 1, 1, 1,
-	3, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-	3, 4, 4, 2, 3, 5, 1, 1, 2, 3,
-	5, 3, 5, 3, 3, 5, 8, 5, 8, 5,
-	0, 3, 0, 1, 3, 1, 4, 2, 0, 3,
-	1, 3, 1, 3, 1, 3, 1, 3, 1, 3,
-	3, 2, 4, 3, 5, 5, 1, 3, 1, 2,
-	1, 3, 4, 1, 2, 2, 1, 1, 3, 0,
-	2, 0, 1, 1, 1, 1, 1, 1, 1, 1,
-	1, 0, 4, 1, 2, 2, 2, 2, 2, 2,
-	1, 3, 1, 3, 1, 3, 1, 3, 1, 3,
-	1, 1, 3, 3, 0, 2, 0, 1, 0, 1,
-	0, 1, 0, 1, 0, 1, 0, 1, 0, 1,
-	0, 1, 0, 1, 4, 4, 5, 6, 4, 4,
-	1, 1, 1, 1, 1, 1, 1, 1, 1, 3,
-	4, 5, 4, 4, 2, 2, 4, 3, 3, 5,
-	3, 4, 3, 5, 1, 0, 1, 3, 1, 1,
-	2, 1, 1, 5, 0, 2, 1, 3, 1, 3,
-	1, 3,
-}
-var yyChk = [...]int{
-
-	-1000, -112, -113, -116, -114, 26, -117, 26, -115, -3,
-	25, -91, 74, 75, -118, -124, 25, -60, -119, 22,
-	63, 4, -125, -123, 25, -50, -74, -47, -26, 2,
-	33, -126, 32, 18, -44, -23, -45, -43, -25, -29,
-	16, 7, 11, 19, 14, 20, 28, 10, -14, -56,
-	17, 31, 29, 21, -33, -46, -3, -39, 54, 57,
-	50, 51, 70, 71, 53, 37, -40, 60, 4, -30,
-	-41, -79, -80, -20, -90, -88, -139, 72, 9, 24,
-	-84, -83, 30, 23, 63, -120, 60, -2, 4, -3,
-	64, 64, 65, -141, 22, 33, 10, 32, 18, 63,
-	63, -70, 60, -54, -34, -3, -75, 60, -54, -48,
-	60, -36, -3, -18, 60, -3, 67, -37, -33, -3,
-	-37, -41, -39, -3, 18, -41, -33, -61, -56, -14,
-	5, 43, 38, 48, 34, 39, 47, 46, 44, 40,
-	41, 50, 51, 52, 53, 54, 55, 56, 57, 35,
-	45, 49, 37, 66, 6, 76, -130, -135, -137, -131,
-	60, 64, 72, -46, -46, -46, -46, -46, -46, -46,
-	-46, 68, -17, -14, -32, -86, -90, -88, 54, 37,
-	60, -1, 36, 68, -1, 2, -35, 12, -14, -87,
-	37, -90, -88, -85, -12, 60, 54, -30, 72, -1,
-	-1, -121, 61, -120, -117, -118, 4, 4, 25, 74,
-	65, 25, -92, -91, -92, -108, -92, -19, -92, 60,
-	-71, 61, -70, -7, 66, 76, -86, -90, -88, -85,
-	-12, 60, 37, -75, 61, -7, 66, -78, 61, -48,
-	-7, -51, 68, -67, -68, -8, -31, -3, -81, -7,
-	12, 60, -140, 60, -14, -14, -14, -14, -14, -14,
-	-14, -14, -14, -14, -14, -14, -14, -14, -14, -14,
-	-14, -14, -14, -14, -14, -56, -56, -14, -21, -22,
-	-38, -42, -44, -56, 27, -24, -38, 36, -24, 61,
-	-59, -17, -3, 60, -14, -35, -49, 61, -32, 9,
-	-14, -49, -66, -6, -11, -74, -26, 2, 68, 73,
-	73, -7, -7, -7, 64, -7, -73, 69, -72, -55,
-	-13, 60, 54, -33, -4, 25, -69, 69, -27, -33,
-	-4, 60, -122, 63, -118, 4, -106, -107, -110, -109,
-	-91, 25, 72, 24, 30, 23, 54, 9, 37, 18,
-	66, -106, -106, -51, 60, -100, -95, -3, -122, 63,
-	66, -56, -34, -7, 9, -122, 63, 66, -56, -122,
-	63, -66, 61, 76, -138, -31, -81, -7, -67, -6,
-	-67, -53, 36, 63, 66, 6, -14, -136, 63, -62,
-	-132, -138, 12, 76, -17, 32, 73, 67, -58, -57,
-	-28, -16, -15, -14, 68, 68, 37, -7, -90, -88,
-	-85, -12, 60, -138, 76, -58, 69, 63, -127, -7,
-	-7, 61, -3, 73, -122, 63, -7, 76, -5, 4,
-	-13, 54, 25, -13, 60, 64, -122, 63, -82, 60,
-	-4, 61, -120, 63, 63, 73, 4, 72, 68, 68,
-	-106, -111, 60, 37, -107, -109, 9, 60, -93, -94,
-	60, 4, 51, -3, 66, 63, 63, -101, -100, 61,
-	76, -106, 12, 61, -70, -56, 61, 61, -77, -76,
-	-75, -54, -56, 61, -48, 69, -3, -52, -89, 60,
-	-86, -90, -88, -85, -12, -8, 61, 61, -129, -38,
-	27, 27, 36, -38, -10, 69, -9, 8, 13, -53,
-	61, -138, -17, 61, 61, -35, 69, 76, -138, 67,
-	-49, -49, -7, 61, 69, -6, -66, -7, 69, -72,
-	-5, -33, 61, -13, -5, -13, -3, 69, -27, -67,
-	61, -106, 73, -106, -105, -104, -97, -3, -103, -102,
-	-96, -3, -106, 25, -91, -110, -106, -106, -101, 63,
-	-94, 4, -93, 61, -3, -95, -5, -106, -122, 63,
-	-7, 60, -67, -52, -66, 63, -14, -14, -62, -128,
-	-59, 67, -133, 61, 73, 67, -28, -16, -15, -14,
-	68, -58, -58, 61, 69, -5, 61, 61, 61, -106,
-	73, 69, 63, -106, 69, 63, 60, 61, 61, 50,
-	63, -99, -98, 60, -106, 60, -5, 61, -76, -67,
-	61, 69, -38, 69, -66, 67, 66, 6, 76, -64,
-	-35, -49, 69, 69, -5, -5, -52, -106, -97, -5,
-	-96, -101, -99, -94, -101, -101, 61, -14, -14, -65,
-	-63, 15, 73, -58, 61, 61, 61, 61, -52, 67,
-	67, 21, -11, 69, -99, -99, -134, -24, -53,
-}
-var yyDef = [...]int{
-
-	4, -2, 2, 0, 6, 0, 21, 0, 218, 0,
-	157, 158, 159, 0, 5, 344, 19, -2, 0, 0,
-	3, 0, 0, 0, 20, 0, 24, 25, 26, 27,
-	0, 0, 0, 0, 256, 257, 258, 259, 260, 0,
-	263, 155, 155, 0, 0, 0, 292, 38, -2, 0,
-	74, 88, 91, 78, 163, 93, -2, 114, 0, 0,
-	0, 0, 0, 0, 0, 0, 146, 0, 126, 127,
-	134, 0, 0, 139, -2, -2, 0, 290, 0, 0,
-	196, 197, 0, 0, 7, 8, 0, 21, 15, 0,
-	0, 0, 0, 345, 0, 0, 0, 0, 0, 18,
-	219, 28, 0, 0, 274, 154, 31, 0, 0, 35,
-	0, 0, 47, 210, 249, 0, 261, 264, 156, 153,
-	265, -2, 0, 162, 0, -2, 268, 269, 293, 276,
-	0, 53, 54, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 294, 294, 0, 294,
-	0, 0, 290, 115, 116, 117, 118, 119, 120, 121,
-	122, 140, 0, 148, 149, 172, -2, -2, 0, 0,
-	0, 140, 151, 152, -2, 217, 0, 0, 291, 193,
-	0, 176, 177, 178, 179, 0, 0, 189, 0, 0,
-	0, 286, 10, 13, 21, 12, 16, 17, 160, 161,
-	22, 0, 0, 310, 0, 0, 311, 210, 0, 0,
-	286, 30, 220, 39, 0, 0, 166, 167, 168, 169,
-	170, 0, 0, 286, 34, 0, 0, 286, 37, 224,
-	48, 204, -2, 0, 288, 247, 243, 162, 246, 150,
-	164, 249, -2, 249, 50, 94, 95, 96, 97, 98,
-	99, 100, 101, 102, 103, 104, 105, 106, 107, 108,
-	109, 110, 111, 112, 113, 51, 52, 277, 75, 0,
-	71, 72, 295, 0, 0, 89, 76, 63, 79, 123,
-	288, 278, 128, 0, 291, 0, 284, 147, 175, 0,
-	288, 284, 0, 270, 252, 253, 254, 255, 59, 0,
-	0, 194, 0, 198, 0, 0, 286, 201, 226, 0,
-	302, 0, 0, 272, 238, -2, 286, 203, 228, 0,
-	240, 0, 0, 287, 11, 0, 0, 312, 313, 314,
-	317, 318, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 296, 0, 346, 0, 0, 287,
-	0, 41, 275, 0, 0, 0, 287, 0, 43, 0,
-	287, 0, 212, 289, 250, 244, 245, 165, 0, 262,
-	0, 73, 65, 294, 0, 0, 69, 0, 294, 0,
-	0, 0, 288, 289, 0, 0, 131, 290, 0, 288,
-	280, 281, 0, -2, 140, 140, 0, 199, -2, -2,
-	-2, -2, 0, 0, 289, 0, 216, -2, -2, 191,
-	192, 180, 190, 0, 0, 287, 302, 0, 231, 303,
-	0, 0, 236, 302, 0, 0, 0, 287, 239, 249,
-	0, 9, 14, 304, 305, 0, 0, 0, 298, 300,
-	324, 325, 0, 0, 315, 316, 0, 296, 0, 342,
-	0, 339, 0, 341, 0, 308, 309, 0, 297, 0,
-	0, 302, 0, 29, 221, 40, 171, 32, 286, 222,
-	44, 46, 42, 36, 225, 211, 162, 209, 213, 249,
-	184, 185, 186, 187, 188, 248, 212, 212, -2, 0,
-	0, 0, 63, 77, 64, 92, 61, 0, 0, 80,
-	124, 0, 279, 129, 130, 0, 137, 289, 285, 0,
-	284, 284, 0, 135, 136, 271, 0, 195, 200, 227,
-	230, 273, 302, 0, 233, 0, 237, 202, 229, 0,
-	241, 319, 0, 0, 0, 299, 348, 0, 0, 301,
-	350, 0, 334, -2, -2, 0, 327, 328, 0, 306,
-	0, 340, 0, 335, 0, 347, 330, 302, 0, 287,
-	45, 249, 0, 205, 0, 294, 67, 68, 0, -2,
-	0, 58, 84, 125, 132, 290, 282, 283, 141, 144,
-	140, 0, 0, -2, 60, 232, 302, 302, 212, 320,
-	0, 322, 0, 302, 323, 0, 296, 326, 335, 0,
-	307, 207, 336, 296, 338, 296, 331, 33, 223, 0,
-	214, 66, 70, 90, 62, 55, 0, 0, 0, 86,
-	0, 284, -2, 138, 234, 235, 242, 321, 349, 332,
-	351, 0, 329, 0, 0, 0, 212, 0, 0, 81,
-	85, 0, 133, 0, 335, 343, 337, 335, 206, 56,
-	57, 82, 87, 145, 333, 208, 294, 0, 83,
-}
-var yyTok1 = [...]int{
-
-	1, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 70, 3, 3, 65, 56, 57, 3,
-	60, 61, 54, 50, 76, 51, 64, 55, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 67, 63,
-	3, 66, 3, 74, 75, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 72, 3, 73, 53, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 68, 52, 69, 71,
-}
-var yyTok2 = [...]int{
-
-	2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
-	12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
-	22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
-	32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
-	42, 43, 44, 45, 46, 47, 48, 49, 58, 59,
-	62,
-}
-var yyTok3 = [...]int{
-	0,
-}
-
-var yyErrorMessages = [...]struct {
-	state int
-	token int
-	msg   string
-}{
-	{332, 76, "unexpected comma during import block"},
-	{89, 63, "missing import path; require quoted string"},
-	{390, 63, "missing { after if clause"},
-	{387, 63, "missing { after switch clause"},
-	{279, 63, "missing { after for clause"},
-	{499, 36, "missing { after for clause"},
-	{17, 68, "unexpected semicolon or newline before {"},
-	{111, 63, "unexpected semicolon or newline in type declaration"},
-	{78, 69, "unexpected } in channel type"},
-	{78, 61, "unexpected ) in channel type"},
-	{78, 76, "unexpected comma in channel type"},
-	{417, 15, "unexpected semicolon or newline before else"},
-	{329, 76, "name list not allowed in interface type"},
-	{279, 33, "var declaration not allowed in for initializer"},
-	{25, 68, "unexpected { at end of statement"},
-	{371, 68, "unexpected { at end of statement"},
-	{122, 63, "argument to go/defer must be function call"},
-	{398, 63, "need trailing comma before newline in composite literal"},
-	{415, 63, "need trailing comma before newline in composite literal"},
-	{124, 25, "nested func not allowed"},
-	{651, 63, "else must be followed by if or statement block"},
-}
-
-//line yaccpar:1
-
-/*	parser for yacc output	*/
-
-var (
-	yyDebug        = 0
-	yyErrorVerbose = false
-)
-
-type yyLexer interface {
-	Lex(lval *yySymType) int
-	Error(s string)
-}
-
-type yyParser interface {
-	Parse(yyLexer) int
-	Lookahead() int
-}
-
-type yyParserImpl struct {
-	lookahead func() int
-}
-
-func (p *yyParserImpl) Lookahead() int {
-	return p.lookahead()
-}
-
-func yyNewParser() yyParser {
-	p := &yyParserImpl{
-		lookahead: func() int { return -1 },
-	}
-	return p
-}
-
-const yyFlag = -1000
-
-func yyTokname(c int) string {
-	if c >= 1 && c-1 < len(yyToknames) {
-		if yyToknames[c-1] != "" {
-			return yyToknames[c-1]
-		}
-	}
-	return __yyfmt__.Sprintf("tok-%v", c)
-}
-
-func yyStatname(s int) string {
-	if s >= 0 && s < len(yyStatenames) {
-		if yyStatenames[s] != "" {
-			return yyStatenames[s]
-		}
-	}
-	return __yyfmt__.Sprintf("state-%v", s)
-}
-
-func yyErrorMessage(state, lookAhead int) string {
-	const TOKSTART = 4
-
-	if !yyErrorVerbose {
-		return "syntax error"
-	}
-
-	for _, e := range yyErrorMessages {
-		if e.state == state && e.token == lookAhead {
-			return "syntax error: " + e.msg
-		}
-	}
-
-	res := "syntax error: unexpected " + yyTokname(lookAhead)
-
-	// To match Bison, suggest at most four expected tokens.
-	expected := make([]int, 0, 4)
-
-	// Look for shiftable tokens.
-	base := yyPact[state]
-	for tok := TOKSTART; tok-1 < len(yyToknames); tok++ {
-		if n := base + tok; n >= 0 && n < yyLast && yyChk[yyAct[n]] == tok {
-			if len(expected) == cap(expected) {
-				return res
-			}
-			expected = append(expected, tok)
-		}
-	}
-
-	if yyDef[state] == -2 {
-		i := 0
-		for yyExca[i] != -1 || yyExca[i+1] != state {
-			i += 2
-		}
-
-		// Look for tokens that we accept or reduce.
-		for i += 2; yyExca[i] >= 0; i += 2 {
-			tok := yyExca[i]
-			if tok < TOKSTART || yyExca[i+1] == 0 {
-				continue
-			}
-			if len(expected) == cap(expected) {
-				return res
-			}
-			expected = append(expected, tok)
-		}
-
-		// If the default action is to accept or reduce, give up.
-		if yyExca[i+1] != 0 {
-			return res
-		}
-	}
-
-	for i, tok := range expected {
-		if i == 0 {
-			res += ", expecting "
-		} else {
-			res += " or "
-		}
-		res += yyTokname(tok)
-	}
-	return res
-}
-
-func yylex1(lex yyLexer, lval *yySymType) (char, token int) {
-	token = 0
-	char = lex.Lex(lval)
-	if char <= 0 {
-		token = yyTok1[0]
-		goto out
-	}
-	if char < len(yyTok1) {
-		token = yyTok1[char]
-		goto out
-	}
-	if char >= yyPrivate {
-		if char < yyPrivate+len(yyTok2) {
-			token = yyTok2[char-yyPrivate]
-			goto out
-		}
-	}
-	for i := 0; i < len(yyTok3); i += 2 {
-		token = yyTok3[i+0]
-		if token == char {
-			token = yyTok3[i+1]
-			goto out
-		}
-	}
-
-out:
-	if token == 0 {
-		token = yyTok2[1] /* unknown char */
-	}
-	if yyDebug >= 3 {
-		__yyfmt__.Printf("lex %s(%d)\n", yyTokname(token), uint(char))
-	}
-	return char, token
-}
-
-func yyParse(yylex yyLexer) int {
-	return yyNewParser().Parse(yylex)
-}
-
-func (yyrcvr *yyParserImpl) Parse(yylex yyLexer) int {
-	var yyn int
-	var yylval yySymType
-	var yyVAL yySymType
-	var yyDollar []yySymType
-	_ = yyDollar // silence set and not used
-	yyS := make([]yySymType, yyMaxDepth)
-
-	Nerrs := 0   /* number of errors */
-	Errflag := 0 /* error recovery flag */
-	yystate := 0
-	yychar := -1
-	yytoken := -1 // yychar translated into internal numbering
-	yyrcvr.lookahead = func() int { return yychar }
-	defer func() {
-		// Make sure we report no lookahead when not parsing.
-		yystate = -1
-		yychar = -1
-		yytoken = -1
-	}()
-	yyp := -1
-	goto yystack
-
-ret0:
-	return 0
-
-ret1:
-	return 1
-
-yystack:
-	/* put a state and value onto the stack */
-	if yyDebug >= 4 {
-		__yyfmt__.Printf("char %v in %v\n", yyTokname(yytoken), yyStatname(yystate))
-	}
-
-	yyp++
-	if yyp >= len(yyS) {
-		nyys := make([]yySymType, len(yyS)*2)
-		copy(nyys, yyS)
-		yyS = nyys
-	}
-	yyS[yyp] = yyVAL
-	yyS[yyp].yys = yystate
-
-yynewstate:
-	yyn = yyPact[yystate]
-	if yyn <= yyFlag {
-		goto yydefault /* simple state */
-	}
-	if yychar < 0 {
-		yychar, yytoken = yylex1(yylex, &yylval)
-	}
-	yyn += yytoken
-	if yyn < 0 || yyn >= yyLast {
-		goto yydefault
-	}
-	yyn = yyAct[yyn]
-	if yyChk[yyn] == yytoken { /* valid shift */
-		yychar = -1
-		yytoken = -1
-		yyVAL = yylval
-		yystate = yyn
-		if Errflag > 0 {
-			Errflag--
-		}
-		goto yystack
-	}
-
-yydefault:
-	/* default state action */
-	yyn = yyDef[yystate]
-	if yyn == -2 {
-		if yychar < 0 {
-			yychar, yytoken = yylex1(yylex, &yylval)
-		}
-
-		/* look through exception table */
-		xi := 0
-		for {
-			if yyExca[xi+0] == -1 && yyExca[xi+1] == yystate {
-				break
-			}
-			xi += 2
-		}
-		for xi += 2; ; xi += 2 {
-			yyn = yyExca[xi+0]
-			if yyn < 0 || yyn == yytoken {
-				break
-			}
-		}
-		yyn = yyExca[xi+1]
-		if yyn < 0 {
-			goto ret0
-		}
-	}
-	if yyn == 0 {
-		/* error ... attempt to resume parsing */
-		switch Errflag {
-		case 0: /* brand new error */
-			yylex.Error(yyErrorMessage(yystate, yytoken))
-			Nerrs++
-			if yyDebug >= 1 {
-				__yyfmt__.Printf("%s", yyStatname(yystate))
-				__yyfmt__.Printf(" saw %s\n", yyTokname(yytoken))
-			}
-			fallthrough
-
-		case 1, 2: /* incompletely recovered error ... try again */
-			Errflag = 3
-
-			/* find a state where "error" is a legal shift action */
-			for yyp >= 0 {
-				yyn = yyPact[yyS[yyp].yys] + yyErrCode
-				if yyn >= 0 && yyn < yyLast {
-					yystate = yyAct[yyn] /* simulate a shift of "error" */
-					if yyChk[yystate] == yyErrCode {
-						goto yystack
-					}
-				}
-
-				/* the current p has no shift on "error", pop stack */
-				if yyDebug >= 2 {
-					__yyfmt__.Printf("error recovery pops state %d\n", yyS[yyp].yys)
-				}
-				yyp--
-			}
-			/* there is no state on the stack with an error shift ... abort */
-			goto ret1
-
-		case 3: /* no shift yet; clobber input char */
-			if yyDebug >= 2 {
-				__yyfmt__.Printf("error recovery discards %s\n", yyTokname(yytoken))
-			}
-			if yytoken == yyEofCode {
-				goto ret1
-			}
-			yychar = -1
-			yytoken = -1
-			goto yynewstate /* try again in the same state */
-		}
-	}
-
-	/* reduction by production yyn */
-	if yyDebug >= 2 {
-		__yyfmt__.Printf("reduce %v in:\n\t%v\n", yyn, yyStatname(yystate))
-	}
-
-	yynt := yyn
-	yypt := yyp
-	_ = yypt // guard against "declared and not used"
-
-	yyp -= yyR2[yyn]
-	// yyp is now the index of $0. Perform the default action. Iff the
-	// reduced production is ε, $1 is possibly out of range.
-	if yyp+1 >= len(yyS) {
-		nyys := make([]yySymType, len(yyS)*2)
-		copy(nyys, yyS)
-		yyS = nyys
-	}
-	yyVAL = yyS[yyp+1]
-
-	/* consult goto table to find next state */
-	yyn = yyR1[yyn]
-	yyg := yyPgo[yyn]
-	yyj := yyg + yyS[yyp].yys + 1
-
-	if yyj >= yyLast {
-		yystate = yyAct[yyg]
-	} else {
-		yystate = yyAct[yyj]
-		if yyChk[yystate] != -yyn {
-			yystate = yyAct[yyg]
-		}
-	}
-	// dummy call; replaced with literal code
-	switch yynt {
-
-	case 1:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:189
-		{
-			xtop = concat(xtop, yyDollar[4].list)
-		}
-	case 2:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:195
-		{
-			prevlineno = lineno
-			Yyerror("package statement must be first")
-			errorexit()
-		}
-	case 3:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:201
-		{
-			mkpackage(yyDollar[2].sym.Name)
-		}
-	case 4:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:211
-		{
-			importpkg = Runtimepkg
-
-			if Debug['A'] != 0 {
-				cannedimports("runtime.Builtin", "package runtime\n\n$$\n\n")
-			} else {
-				cannedimports("runtime.Builtin", runtimeimport)
-			}
-			curio.importsafe = true
-		}
-	case 5:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:223
-		{
-			importpkg = nil
-		}
-	case 11:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:237
-		{
-			ipkg := importpkg
-			my := importmyname
-			importpkg = nil
-			importmyname = nil
-
-			if my == nil {
-				my = Lookup(ipkg.Name)
-			}
-
-			pack := Nod(OPACK, nil, nil)
-			pack.Sym = my
-			pack.Name.Pkg = ipkg
-			pack.Lineno = int32(yyDollar[1].i)
-
-			if strings.HasPrefix(my.Name, ".") {
-				importdot(ipkg, pack)
-				break
-			}
-			if my.Name == "init" {
-				lineno = int32(yyDollar[1].i)
-				Yyerror("cannot import package as init - init must be a func")
-				break
-			}
-			if my.Name == "_" {
-				break
-			}
-			if my.Def != nil {
-				lineno = int32(yyDollar[1].i)
-				redeclare(my, "as imported package name")
-			}
-			my.Def = pack
-			my.Lastlineno = int32(yyDollar[1].i)
-			my.Block = 1 // at top level
-		}
-	case 12:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:273
-		{
-			// When an invalid import path is passed to importfile,
-			// it calls Yyerror and then sets up a fake import with
-			// no package statement. This allows us to test more
-			// than one invalid import statement in a single file.
-			if nerrors == 0 {
-				Fatalf("phase error in import")
-			}
-		}
-	case 15:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:289
-		{
-			// import with original name
-			yyVAL.i = parserline()
-			importmyname = nil
-			importfile(&yyDollar[1].val, yyVAL.i)
-		}
-	case 16:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:296
-		{
-			// import with given name
-			yyVAL.i = parserline()
-			importmyname = yyDollar[1].sym
-			importfile(&yyDollar[2].val, yyVAL.i)
-		}
-	case 17:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:303
-		{
-			// import into my name space
-			yyVAL.i = parserline()
-			importmyname = Lookup(".")
-			importfile(&yyDollar[2].val, yyVAL.i)
-		}
-	case 18:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:312
-		{
-			if importpkg.Name == "" {
-				importpkg.Name = yyDollar[2].sym.Name
-				numImport[yyDollar[2].sym.Name]++
-			} else if importpkg.Name != yyDollar[2].sym.Name {
-				Yyerror("conflicting names %s and %s for package %q", importpkg.Name, yyDollar[2].sym.Name, importpkg.Path)
-			}
-			if incannedimport == 0 {
-				importpkg.Direct = true
-			}
-			importpkg.Safe = curio.importsafe
-
-			if safemode != 0 && !curio.importsafe {
-				Yyerror("cannot import unsafe package %q", importpkg.Path)
-			}
-		}
-	case 20:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:331
-		{
-			if yyDollar[1].sym.Name == "safe" {
-				curio.importsafe = true
-			}
-		}
-	case 21:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:338
-		{
-			defercheckwidth()
-		}
-	case 22:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:342
-		{
-			resumecheckwidth()
-			unimportfile()
-		}
-	case 23:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:351
-		{
-			Yyerror("empty top-level declaration")
-			yyVAL.list = nil
-		}
-	case 25:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:357
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 26:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:361
-		{
-			Yyerror("non-declaration statement outside function body")
-			yyVAL.list = nil
-		}
-	case 27:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:366
-		{
-			yyVAL.list = nil
-		}
-	case 28:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:372
-		{
-			yyVAL.list = yyDollar[2].list
-		}
-	case 29:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:376
-		{
-			yyVAL.list = yyDollar[3].list
-		}
-	case 30:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:380
-		{
-			yyVAL.list = nil
-		}
-	case 31:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:384
-		{
-			yyVAL.list = yyDollar[2].list
-			iota_ = -100000
-			lastconst = nil
-		}
-	case 32:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:390
-		{
-			yyVAL.list = yyDollar[3].list
-			iota_ = -100000
-			lastconst = nil
-		}
-	case 33:
-		yyDollar = yyS[yypt-7 : yypt+1]
-		//line go.y:396
-		{
-			yyVAL.list = concat(yyDollar[3].list, yyDollar[5].list)
-			iota_ = -100000
-			lastconst = nil
-		}
-	case 34:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:402
-		{
-			yyVAL.list = nil
-			iota_ = -100000
-		}
-	case 35:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:407
-		{
-			yyVAL.list = list1(yyDollar[2].node)
-		}
-	case 36:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:411
-		{
-			yyVAL.list = yyDollar[3].list
-		}
-	case 37:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:415
-		{
-			yyVAL.list = nil
-		}
-	case 38:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:421
-		{
-			iota_ = 0
-		}
-	case 39:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:427
-		{
-			yyVAL.list = variter(yyDollar[1].list, yyDollar[2].node, nil)
-		}
-	case 40:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:431
-		{
-			yyVAL.list = variter(yyDollar[1].list, yyDollar[2].node, yyDollar[4].list)
-		}
-	case 41:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:435
-		{
-			yyVAL.list = variter(yyDollar[1].list, nil, yyDollar[3].list)
-		}
-	case 42:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:441
-		{
-			yyVAL.list = constiter(yyDollar[1].list, yyDollar[2].node, yyDollar[4].list)
-		}
-	case 43:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:445
-		{
-			yyVAL.list = constiter(yyDollar[1].list, nil, yyDollar[3].list)
-		}
-	case 45:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:452
-		{
-			yyVAL.list = constiter(yyDollar[1].list, yyDollar[2].node, nil)
-		}
-	case 46:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:456
-		{
-			yyVAL.list = constiter(yyDollar[1].list, nil, nil)
-		}
-	case 47:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:462
-		{
-			// different from dclname because the name
-			// becomes visible right here, not at the end
-			// of the declaration.
-			yyVAL.node = typedcl0(yyDollar[1].sym)
-		}
-	case 48:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:471
-		{
-			yyVAL.node = typedcl1(yyDollar[1].node, yyDollar[2].node, true)
-		}
-	case 49:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:477
-		{
-			yyVAL.node = yyDollar[1].node
-
-			// These nodes do not carry line numbers.
-			// Since a bare name used as an expression is an error,
-			// introduce a wrapper node to give the correct line.
-			switch yyVAL.node.Op {
-			case ONAME, ONONAME, OTYPE, OPACK, OLITERAL:
-				yyVAL.node = Nod(OPAREN, yyVAL.node, nil)
-				yyVAL.node.Implicit = true
-				break
-			}
-		}
-	case 50:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:491
-		{
-			yyVAL.node = Nod(OASOP, yyDollar[1].node, yyDollar[3].node)
-			yyVAL.node.Etype = EType(yyDollar[2].i) // rathole to pass opcode
-		}
-	case 51:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:496
-		{
-			if yyDollar[1].list.Next == nil && yyDollar[3].list.Next == nil {
-				// simple
-				yyVAL.node = Nod(OAS, yyDollar[1].list.N, yyDollar[3].list.N)
-				break
-			}
-			// multiple
-			yyVAL.node = Nod(OAS2, nil, nil)
-			yyVAL.node.List = yyDollar[1].list
-			yyVAL.node.Rlist = yyDollar[3].list
-		}
-	case 52:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:508
-		{
-			if yyDollar[3].list.N.Op == OTYPESW {
-				yyVAL.node = Nod(OTYPESW, nil, yyDollar[3].list.N.Right)
-				if yyDollar[3].list.Next != nil {
-					Yyerror("expr.(type) must be alone in list")
-				}
-				if yyDollar[1].list.Next != nil {
-					Yyerror("argument count mismatch: %d = %d", count(yyDollar[1].list), 1)
-				} else if (yyDollar[1].list.N.Op != ONAME && yyDollar[1].list.N.Op != OTYPE && yyDollar[1].list.N.Op != ONONAME && (yyDollar[1].list.N.Op != OLITERAL || yyDollar[1].list.N.Name == nil)) || isblank(yyDollar[1].list.N) {
-					Yyerror("invalid variable name %s in type switch", yyDollar[1].list.N)
-				} else {
-					yyVAL.node.Left = dclname(yyDollar[1].list.N.Sym)
-				} // it's a colas, so must not re-use an oldname.
-				break
-			}
-			yyVAL.node = colas(yyDollar[1].list, yyDollar[3].list, int32(yyDollar[2].i))
-		}
-	case 53:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:526
-		{
-			yyVAL.node = Nod(OASOP, yyDollar[1].node, Nodintconst(1))
-			yyVAL.node.Implicit = true
-			// TODO(marvin): Fix Node.EType type union.
-			yyVAL.node.Etype = EType(OADD)
-		}
-	case 54:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:533
-		{
-			yyVAL.node = Nod(OASOP, yyDollar[1].node, Nodintconst(1))
-			yyVAL.node.Implicit = true
-			// TODO(marvin): Fix Node.EType type union.
-			yyVAL.node.Etype = EType(OSUB)
-		}
-	case 55:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:542
-		{
-			var n, nn *Node
-
-			// will be converted to OCASE
-			// right will point to next case
-			// done in casebody()
-			markdcl()
-			yyVAL.node = Nod(OXCASE, nil, nil)
-			yyVAL.node.List = yyDollar[2].list
-			if typesw != nil && typesw.Right != nil {
-				n = typesw.Right.Left
-				if n != nil {
-					// type switch - declare variable
-					nn = newname(n.Sym)
-					declare(nn, dclcontext)
-					yyVAL.node.Rlist = list1(nn)
-
-					// keep track of the instances for reporting unused
-					nn.Name.Defn = typesw.Right
-				}
-			}
-		}
-	case 56:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:565
-		{
-			var n *Node
-
-			// will be converted to OCASE
-			// right will point to next case
-			// done in casebody()
-			markdcl()
-			yyVAL.node = Nod(OXCASE, nil, nil)
-			if yyDollar[2].list.Next == nil {
-				n = Nod(OAS, yyDollar[2].list.N, yyDollar[4].node)
-			} else {
-				n = Nod(OAS2, nil, nil)
-				n.List = yyDollar[2].list
-				n.Rlist = list1(yyDollar[4].node)
-			}
-			yyVAL.node.List = list1(n)
-		}
-	case 57:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:583
-		{
-			// will be converted to OCASE
-			// right will point to next case
-			// done in casebody()
-			markdcl()
-			yyVAL.node = Nod(OXCASE, nil, nil)
-			yyVAL.node.List = list1(colas(yyDollar[2].list, list1(yyDollar[4].node), int32(yyDollar[3].i)))
-		}
-	case 58:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:592
-		{
-			var n, nn *Node
-
-			markdcl()
-			yyVAL.node = Nod(OXCASE, nil, nil)
-			if typesw != nil && typesw.Right != nil {
-				n = typesw.Right.Left
-				if n != nil {
-					// type switch - declare variable
-					nn = newname(n.Sym)
-					declare(nn, dclcontext)
-					yyVAL.node.Rlist = list1(nn)
-
-					// keep track of the instances for reporting unused
-					nn.Name.Defn = typesw.Right
-				}
-			}
-		}
-	case 59:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:613
-		{
-			markdcl()
-		}
-	case 60:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:617
-		{
-			if yyDollar[3].list == nil {
-				yyVAL.node = Nod(OEMPTY, nil, nil)
-			} else {
-				yyVAL.node = liststmt(yyDollar[3].list)
-			}
-			popdcl()
-		}
-	case 61:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:628
-		{
-			// If the last token read by the lexer was consumed
-			// as part of the case, clear it (parser has cleared yychar).
-			// If the last token read by the lexer was the lookahead
-			// leave it alone (parser has it cached in yychar).
-			// This is so that the stmt_list action doesn't look at
-			// the case tokens if the stmt_list is empty.
-			yylast = yychar
-			yyDollar[1].node.Xoffset = int64(block)
-		}
-	case 62:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:639
-		{
-			// This is the only place in the language where a statement
-			// list is not allowed to drop the final semicolon, because
-			// it's the only place where a statement list is not followed
-			// by a closing brace.  Handle the error for pedantry.
-
-			// Find the final token of the statement list.
-			// yylast is lookahead; yyprev is last of stmt_list
-			last := yyprev
-
-			if last > 0 && last != ';' && yychar != '}' {
-				Yyerror("missing statement after label")
-			}
-			yyVAL.node = yyDollar[1].node
-			yyVAL.node.Nbody = yyDollar[3].list
-			popdcl()
-		}
-	case 63:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:658
-		{
-			yyVAL.list = nil
-		}
-	case 64:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:662
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[2].node)
-		}
-	case 65:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:668
-		{
-			markdcl()
-		}
-	case 66:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:672
-		{
-			yyVAL.list = yyDollar[3].list
-			popdcl()
-		}
-	case 67:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:679
-		{
-			yyVAL.node = Nod(ORANGE, nil, yyDollar[4].node)
-			yyVAL.node.List = yyDollar[1].list
-			yyVAL.node.Etype = 0 // := flag
-		}
-	case 68:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:685
-		{
-			yyVAL.node = Nod(ORANGE, nil, yyDollar[4].node)
-			yyVAL.node.List = yyDollar[1].list
-			yyVAL.node.Colas = true
-			colasdefn(yyDollar[1].list, yyVAL.node)
-		}
-	case 69:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:692
-		{
-			yyVAL.node = Nod(ORANGE, nil, yyDollar[2].node)
-			yyVAL.node.Etype = 0 // := flag
-		}
-	case 70:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:699
-		{
-			// init ; test ; incr
-			if yyDollar[5].node != nil && yyDollar[5].node.Colas {
-				Yyerror("cannot declare in the for-increment")
-			}
-			yyVAL.node = Nod(OFOR, nil, nil)
-			if yyDollar[1].node != nil {
-				yyVAL.node.Ninit = list1(yyDollar[1].node)
-			}
-			yyVAL.node.Left = yyDollar[3].node
-			yyVAL.node.Right = yyDollar[5].node
-		}
-	case 71:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:712
-		{
-			// normal test
-			yyVAL.node = Nod(OFOR, nil, nil)
-			yyVAL.node.Left = yyDollar[1].node
-		}
-	case 73:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:721
-		{
-			yyVAL.node = yyDollar[1].node
-			yyVAL.node.Nbody = concat(yyVAL.node.Nbody, yyDollar[2].list)
-		}
-	case 74:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:728
-		{
-			markdcl()
-		}
-	case 75:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:732
-		{
-			yyVAL.node = yyDollar[3].node
-			popdcl()
-		}
-	case 76:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:739
-		{
-			// test
-			yyVAL.node = Nod(OIF, nil, nil)
-			yyVAL.node.Left = yyDollar[1].node
-		}
-	case 77:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:745
-		{
-			// init ; test
-			yyVAL.node = Nod(OIF, nil, nil)
-			if yyDollar[1].node != nil {
-				yyVAL.node.Ninit = list1(yyDollar[1].node)
-			}
-			yyVAL.node.Left = yyDollar[3].node
-		}
-	case 78:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:757
-		{
-			markdcl()
-		}
-	case 79:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:761
-		{
-			if yyDollar[3].node.Left == nil {
-				Yyerror("missing condition in if statement")
-			}
-		}
-	case 80:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:767
-		{
-			yyDollar[3].node.Nbody = yyDollar[5].list
-		}
-	case 81:
-		yyDollar = yyS[yypt-8 : yypt+1]
-		//line go.y:771
-		{
-			var n *Node
-			var nn *NodeList
-
-			yyVAL.node = yyDollar[3].node
-			n = yyDollar[3].node
-			popdcl()
-			for nn = concat(yyDollar[7].list, yyDollar[8].list); nn != nil; nn = nn.Next {
-				if nn.N.Op == OIF {
-					popdcl()
-				}
-				n.Rlist = list1(nn.N)
-				n = nn.N
-			}
-		}
-	case 82:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:789
-		{
-			markdcl()
-		}
-	case 83:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:793
-		{
-			if yyDollar[4].node.Left == nil {
-				Yyerror("missing condition in if statement")
-			}
-			yyDollar[4].node.Nbody = yyDollar[5].list
-			yyVAL.list = list1(yyDollar[4].node)
-		}
-	case 84:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:802
-		{
-			yyVAL.list = nil
-		}
-	case 85:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:806
-		{
-			yyVAL.list = concat(yyDollar[1].list, yyDollar[2].list)
-		}
-	case 86:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:811
-		{
-			yyVAL.list = nil
-		}
-	case 87:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:815
-		{
-			l := &NodeList{N: yyDollar[2].node}
-			l.End = l
-			yyVAL.list = l
-		}
-	case 88:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:823
-		{
-			markdcl()
-		}
-	case 89:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:827
-		{
-			var n *Node
-			n = yyDollar[3].node.Left
-			if n != nil && n.Op != OTYPESW {
-				n = nil
-			}
-			typesw = Nod(OXXX, typesw, n)
-		}
-	case 90:
-		yyDollar = yyS[yypt-7 : yypt+1]
-		//line go.y:836
-		{
-			yyVAL.node = yyDollar[3].node
-			yyVAL.node.Op = OSWITCH
-			yyVAL.node.List = yyDollar[6].list
-			typesw = typesw.Left
-			popdcl()
-		}
-	case 91:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:846
-		{
-			typesw = Nod(OXXX, typesw, nil)
-		}
-	case 92:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:850
-		{
-			yyVAL.node = Nod(OSELECT, nil, nil)
-			yyVAL.node.Lineno = typesw.Lineno
-			yyVAL.node.List = yyDollar[4].list
-			typesw = typesw.Left
-		}
-	case 94:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:863
-		{
-			yyVAL.node = Nod(OOROR, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 95:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:867
-		{
-			yyVAL.node = Nod(OANDAND, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 96:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:871
-		{
-			yyVAL.node = Nod(OEQ, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 97:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:875
-		{
-			yyVAL.node = Nod(ONE, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 98:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:879
-		{
-			yyVAL.node = Nod(OLT, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 99:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:883
-		{
-			yyVAL.node = Nod(OLE, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 100:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:887
-		{
-			yyVAL.node = Nod(OGE, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 101:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:891
-		{
-			yyVAL.node = Nod(OGT, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 102:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:895
-		{
-			yyVAL.node = Nod(OADD, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 103:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:899
-		{
-			yyVAL.node = Nod(OSUB, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 104:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:903
-		{
-			yyVAL.node = Nod(OOR, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 105:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:907
-		{
-			yyVAL.node = Nod(OXOR, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 106:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:911
-		{
-			yyVAL.node = Nod(OMUL, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 107:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:915
-		{
-			yyVAL.node = Nod(ODIV, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 108:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:919
-		{
-			yyVAL.node = Nod(OMOD, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 109:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:923
-		{
-			yyVAL.node = Nod(OAND, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 110:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:927
-		{
-			yyVAL.node = Nod(OANDNOT, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 111:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:931
-		{
-			yyVAL.node = Nod(OLSH, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 112:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:935
-		{
-			yyVAL.node = Nod(ORSH, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 113:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:940
-		{
-			yyVAL.node = Nod(OSEND, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 115:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:947
-		{
-			yyVAL.node = Nod(OIND, yyDollar[2].node, nil)
-		}
-	case 116:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:951
-		{
-			if yyDollar[2].node.Op == OCOMPLIT {
-				// Special case for &T{...}: turn into (*T){...}.
-				yyVAL.node = yyDollar[2].node
-				yyVAL.node.Right = Nod(OIND, yyVAL.node.Right, nil)
-				yyVAL.node.Right.Implicit = true
-			} else {
-				yyVAL.node = Nod(OADDR, yyDollar[2].node, nil)
-			}
-		}
-	case 117:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:962
-		{
-			yyVAL.node = Nod(OPLUS, yyDollar[2].node, nil)
-		}
-	case 118:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:966
-		{
-			yyVAL.node = Nod(OMINUS, yyDollar[2].node, nil)
-		}
-	case 119:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:970
-		{
-			yyVAL.node = Nod(ONOT, yyDollar[2].node, nil)
-		}
-	case 120:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:974
-		{
-			Yyerror("the bitwise complement operator is ^")
-			yyVAL.node = Nod(OCOM, yyDollar[2].node, nil)
-		}
-	case 121:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:979
-		{
-			yyVAL.node = Nod(OCOM, yyDollar[2].node, nil)
-		}
-	case 122:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:983
-		{
-			yyVAL.node = Nod(ORECV, yyDollar[2].node, nil)
-		}
-	case 123:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:993
-		{
-			yyVAL.node = Nod(OCALL, yyDollar[1].node, nil)
-		}
-	case 124:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:997
-		{
-			yyVAL.node = Nod(OCALL, yyDollar[1].node, nil)
-			yyVAL.node.List = yyDollar[3].list
-		}
-	case 125:
-		yyDollar = yyS[yypt-6 : yypt+1]
-		//line go.y:1002
-		{
-			yyVAL.node = Nod(OCALL, yyDollar[1].node, nil)
-			yyVAL.node.List = yyDollar[3].list
-			yyVAL.node.Isddd = true
-		}
-	case 126:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1010
-		{
-			yyVAL.node = nodlit(yyDollar[1].val)
-		}
-	case 128:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1015
-		{
-			if yyDollar[1].node.Op == OPACK {
-				var s *Sym
-				s = restrictlookup(yyDollar[3].sym.Name, yyDollar[1].node.Name.Pkg)
-				yyDollar[1].node.Used = true
-				yyVAL.node = oldname(s)
-				break
-			}
-			yyVAL.node = Nod(OXDOT, yyDollar[1].node, newname(yyDollar[3].sym))
-		}
-	case 129:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1026
-		{
-			yyVAL.node = Nod(ODOTTYPE, yyDollar[1].node, yyDollar[4].node)
-		}
-	case 130:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1030
-		{
-			yyVAL.node = Nod(OTYPESW, nil, yyDollar[1].node)
-		}
-	case 131:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1034
-		{
-			yyVAL.node = Nod(OINDEX, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 132:
-		yyDollar = yyS[yypt-6 : yypt+1]
-		//line go.y:1038
-		{
-			yyVAL.node = Nod(OSLICE, yyDollar[1].node, Nod(OKEY, yyDollar[3].node, yyDollar[5].node))
-		}
-	case 133:
-		yyDollar = yyS[yypt-8 : yypt+1]
-		//line go.y:1042
-		{
-			if yyDollar[5].node == nil {
-				Yyerror("middle index required in 3-index slice")
-			}
-			if yyDollar[7].node == nil {
-				Yyerror("final index required in 3-index slice")
-			}
-			yyVAL.node = Nod(OSLICE3, yyDollar[1].node, Nod(OKEY, yyDollar[3].node, Nod(OKEY, yyDollar[5].node, yyDollar[7].node)))
-		}
-	case 135:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1053
-		{
-			// conversion
-			yyVAL.node = Nod(OCALL, yyDollar[1].node, nil)
-			yyVAL.node.List = list1(yyDollar[3].node)
-		}
-	case 136:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1059
-		{
-			yyVAL.node = yyDollar[3].node
-			yyVAL.node.Right = yyDollar[1].node
-			yyVAL.node.List = yyDollar[4].list
-			fixlbrace(yyDollar[2].i)
-		}
-	case 137:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1066
-		{
-			yyVAL.node = yyDollar[3].node
-			yyVAL.node.Right = yyDollar[1].node
-			yyVAL.node.List = yyDollar[4].list
-		}
-	case 138:
-		yyDollar = yyS[yypt-7 : yypt+1]
-		//line go.y:1072
-		{
-			Yyerror("cannot parenthesize type in composite literal")
-			yyVAL.node = yyDollar[5].node
-			yyVAL.node.Right = yyDollar[2].node
-			yyVAL.node.List = yyDollar[6].list
-		}
-	case 140:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1081
-		{
-			// composite expression.
-			// make node early so we get the right line number.
-			yyVAL.node = Nod(OCOMPLIT, nil, nil)
-		}
-	case 141:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1089
-		{
-			yyVAL.node = Nod(OKEY, yyDollar[1].node, yyDollar[3].node)
-		}
-	case 142:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1095
-		{
-			// These nodes do not carry line numbers.
-			// Since a composite literal commonly spans several lines,
-			// the line number on errors may be misleading.
-			// Introduce a wrapper node to give the correct line.
-			yyVAL.node = yyDollar[1].node
-			switch yyVAL.node.Op {
-			case ONAME, ONONAME, OTYPE, OPACK, OLITERAL:
-				yyVAL.node = Nod(OPAREN, yyVAL.node, nil)
-				yyVAL.node.Implicit = true
-			}
-		}
-	case 143:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1108
-		{
-			yyVAL.node = yyDollar[2].node
-			yyVAL.node.List = yyDollar[3].list
-		}
-	case 145:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1116
-		{
-			yyVAL.node = yyDollar[2].node
-			yyVAL.node.List = yyDollar[3].list
-		}
-	case 147:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1124
-		{
-			yyVAL.node = yyDollar[2].node
-
-			// Need to know on lhs of := whether there are ( ).
-			// Don't bother with the OPAREN in other cases:
-			// it's just a waste of memory and time.
-			switch yyVAL.node.Op {
-			case ONAME, ONONAME, OPACK, OTYPE, OLITERAL, OTYPESW:
-				yyVAL.node = Nod(OPAREN, yyVAL.node, nil)
-			}
-		}
-	case 151:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1145
-		{
-			yyVAL.i = LBODY
-		}
-	case 152:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1149
-		{
-			yyVAL.i = '{'
-		}
-	case 153:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1160
-		{
-			if yyDollar[1].sym == nil {
-				yyVAL.node = nil
-			} else {
-				yyVAL.node = newname(yyDollar[1].sym)
-			}
-		}
-	case 154:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1170
-		{
-			yyVAL.node = dclname(yyDollar[1].sym)
-		}
-	case 155:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1175
-		{
-			yyVAL.node = nil
-		}
-	case 157:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1182
-		{
-			yyVAL.sym = yyDollar[1].sym
-			// during imports, unqualified non-exported identifiers are from builtinpkg
-			if importpkg != nil && !exportname(yyDollar[1].sym.Name) {
-				yyVAL.sym = Pkglookup(yyDollar[1].sym.Name, builtinpkg)
-			}
-		}
-	case 159:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1191
-		{
-			yyVAL.sym = nil
-		}
-	case 160:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1197
-		{
-			var p *Pkg
-
-			if yyDollar[2].val.U.(string) == "" {
-				p = importpkg
-			} else {
-				if isbadimport(yyDollar[2].val.U.(string)) {
-					errorexit()
-				}
-				p = mkpkg(yyDollar[2].val.U.(string))
-			}
-			yyVAL.sym = Pkglookup(yyDollar[4].sym.Name, p)
-		}
-	case 161:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1211
-		{
-			var p *Pkg
-
-			if yyDollar[2].val.U.(string) == "" {
-				p = importpkg
-			} else {
-				if isbadimport(yyDollar[2].val.U.(string)) {
-					errorexit()
-				}
-				p = mkpkg(yyDollar[2].val.U.(string))
-			}
-			yyVAL.sym = Pkglookup("?", p)
-		}
-	case 162:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1227
-		{
-			yyVAL.node = oldname(yyDollar[1].sym)
-			if yyVAL.node.Name != nil && yyVAL.node.Name.Pack != nil {
-				yyVAL.node.Name.Pack.Used = true
-			}
-		}
-	case 164:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1248
-		{
-			Yyerror("final argument in variadic function missing type")
-			yyVAL.node = Nod(ODDD, typenod(typ(TINTER)), nil)
-		}
-	case 165:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1253
-		{
-			yyVAL.node = Nod(ODDD, yyDollar[2].node, nil)
-		}
-	case 171:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1264
-		{
-			yyVAL.node = yyDollar[2].node
-		}
-	case 175:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1273
-		{
-			yyVAL.node = Nod(OIND, yyDollar[2].node, nil)
-		}
-	case 180:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1283
-		{
-			yyVAL.node = yyDollar[2].node
-		}
-	case 190:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1304
-		{
-			if yyDollar[1].node.Op == OPACK {
-				var s *Sym
-				s = restrictlookup(yyDollar[3].sym.Name, yyDollar[1].node.Name.Pkg)
-				yyDollar[1].node.Used = true
-				yyVAL.node = oldname(s)
-				break
-			}
-			yyVAL.node = Nod(OXDOT, yyDollar[1].node, newname(yyDollar[3].sym))
-		}
-	case 191:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1317
-		{
-			yyVAL.node = Nod(OTARRAY, yyDollar[2].node, yyDollar[4].node)
-		}
-	case 192:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1321
-		{
-			// array literal of nelem
-			yyVAL.node = Nod(OTARRAY, Nod(ODDD, nil, nil), yyDollar[4].node)
-		}
-	case 193:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1326
-		{
-			yyVAL.node = Nod(OTCHAN, yyDollar[2].node, nil)
-			yyVAL.node.Etype = Cboth
-		}
-	case 194:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1331
-		{
-			yyVAL.node = Nod(OTCHAN, yyDollar[3].node, nil)
-			yyVAL.node.Etype = Csend
-		}
-	case 195:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1336
-		{
-			yyVAL.node = Nod(OTMAP, yyDollar[3].node, yyDollar[5].node)
-		}
-	case 198:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1344
-		{
-			yyVAL.node = Nod(OIND, yyDollar[2].node, nil)
-		}
-	case 199:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1350
-		{
-			yyVAL.node = Nod(OTCHAN, yyDollar[3].node, nil)
-			yyVAL.node.Etype = Crecv
-		}
-	case 200:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1357
-		{
-			yyVAL.node = Nod(OTSTRUCT, nil, nil)
-			yyVAL.node.List = yyDollar[3].list
-			fixlbrace(yyDollar[2].i)
-		}
-	case 201:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1363
-		{
-			yyVAL.node = Nod(OTSTRUCT, nil, nil)
-			fixlbrace(yyDollar[2].i)
-		}
-	case 202:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1370
-		{
-			yyVAL.node = Nod(OTINTER, nil, nil)
-			yyVAL.node.List = yyDollar[3].list
-			fixlbrace(yyDollar[2].i)
-		}
-	case 203:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1376
-		{
-			yyVAL.node = Nod(OTINTER, nil, nil)
-			fixlbrace(yyDollar[2].i)
-		}
-	case 204:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1387
-		{
-			yyVAL.node = yyDollar[2].node
-			if yyVAL.node == nil {
-				break
-			}
-			if noescape && yyDollar[3].list != nil {
-				Yyerror("can only use //go:noescape with external func implementations")
-			}
-			yyVAL.node.Nbody = yyDollar[3].list
-			yyVAL.node.Func.Endlineno = lineno
-			yyVAL.node.Noescape = noescape
-			yyVAL.node.Func.Norace = norace
-			yyVAL.node.Func.Nosplit = nosplit
-			yyVAL.node.Func.Noinline = noinline
-			yyVAL.node.Func.Nowritebarrier = nowritebarrier
-			yyVAL.node.Func.Nowritebarrierrec = nowritebarrierrec
-			yyVAL.node.Func.Systemstack = systemstack
-			funcbody(yyVAL.node)
-		}
-	case 205:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1409
-		{
-			var t *Node
-
-			yyVAL.node = nil
-			yyDollar[3].list = checkarglist(yyDollar[3].list, 1)
-
-			if yyDollar[1].sym.Name == "init" {
-				yyDollar[1].sym = renameinit()
-				if yyDollar[3].list != nil || yyDollar[5].list != nil {
-					Yyerror("func init must have no arguments and no return values")
-				}
-			}
-			if localpkg.Name == "main" && yyDollar[1].sym.Name == "main" {
-				if yyDollar[3].list != nil || yyDollar[5].list != nil {
-					Yyerror("func main must have no arguments and no return values")
-				}
-			}
-
-			t = Nod(OTFUNC, nil, nil)
-			t.List = yyDollar[3].list
-			t.Rlist = yyDollar[5].list
-
-			yyVAL.node = Nod(ODCLFUNC, nil, nil)
-			yyVAL.node.Func.Nname = newfuncname(yyDollar[1].sym)
-			yyVAL.node.Func.Nname.Name.Defn = yyVAL.node
-			yyVAL.node.Func.Nname.Name.Param.Ntype = t // TODO: check if nname already has an ntype
-			declare(yyVAL.node.Func.Nname, PFUNC)
-
-			funchdr(yyVAL.node)
-		}
-	case 206:
-		yyDollar = yyS[yypt-8 : yypt+1]
-		//line go.y:1440
-		{
-			var rcvr, t *Node
-
-			yyVAL.node = nil
-			yyDollar[2].list = checkarglist(yyDollar[2].list, 0)
-			yyDollar[6].list = checkarglist(yyDollar[6].list, 1)
-
-			if yyDollar[2].list == nil {
-				Yyerror("method has no receiver")
-				break
-			}
-			if yyDollar[2].list.Next != nil {
-				Yyerror("method has multiple receivers")
-				break
-			}
-			rcvr = yyDollar[2].list.N
-			if rcvr.Op != ODCLFIELD {
-				Yyerror("bad receiver in method")
-				break
-			}
-
-			t = Nod(OTFUNC, rcvr, nil)
-			t.List = yyDollar[6].list
-			t.Rlist = yyDollar[8].list
-
-			yyVAL.node = Nod(ODCLFUNC, nil, nil)
-			yyVAL.node.Func.Shortname = newfuncname(yyDollar[4].sym)
-			yyVAL.node.Func.Nname = methodname1(yyVAL.node.Func.Shortname, rcvr.Right)
-			yyVAL.node.Func.Nname.Name.Defn = yyVAL.node
-			yyVAL.node.Func.Nname.Name.Param.Ntype = t
-			yyVAL.node.Func.Nname.Nointerface = nointerface
-			declare(yyVAL.node.Func.Nname, PFUNC)
-
-			funchdr(yyVAL.node)
-		}
-	case 207:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1478
-		{
-			var s *Sym
-			var t *Type
-
-			yyVAL.node = nil
-
-			s = yyDollar[1].sym
-			t = functype(nil, yyDollar[3].list, yyDollar[5].list)
-
-			importsym(s, ONAME)
-			if s.Def != nil && s.Def.Op == ONAME {
-				if Eqtype(t, s.Def.Type) {
-					dclcontext = PDISCARD // since we skip funchdr below
-					break
-				}
-				Yyerror("inconsistent definition for func %v during import\n\t%v\n\t%v", s, s.Def.Type, t)
-			}
-
-			yyVAL.node = newfuncname(s)
-			yyVAL.node.Type = t
-			declare(yyVAL.node, PFUNC)
-
-			funchdr(yyVAL.node)
-		}
-	case 208:
-		yyDollar = yyS[yypt-8 : yypt+1]
-		//line go.y:1503
-		{
-			yyVAL.node = methodname1(newname(yyDollar[4].sym), yyDollar[2].list.N.Right)
-			yyVAL.node.Type = functype(yyDollar[2].list.N, yyDollar[6].list, yyDollar[8].list)
-
-			checkwidth(yyVAL.node.Type)
-			addmethod(yyDollar[4].sym, yyVAL.node.Type, false, nointerface)
-			nointerface = false
-			funchdr(yyVAL.node)
-
-			// inl.C's inlnode in on a dotmeth node expects to find the inlineable body as
-			// (dotmeth's type).Nname.Inl, and dotmeth's type has been pulled
-			// out by typecheck's lookdot as this $$.ttype.  So by providing
-			// this back link here we avoid special casing there.
-			yyVAL.node.Type.Nname = yyVAL.node
-		}
-	case 209:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1521
-		{
-			yyDollar[3].list = checkarglist(yyDollar[3].list, 1)
-			yyVAL.node = Nod(OTFUNC, nil, nil)
-			yyVAL.node.List = yyDollar[3].list
-			yyVAL.node.Rlist = yyDollar[5].list
-		}
-	case 210:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1529
-		{
-			yyVAL.list = nil
-		}
-	case 211:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1533
-		{
-			yyVAL.list = yyDollar[2].list
-			if yyVAL.list == nil {
-				yyVAL.list = list1(Nod(OEMPTY, nil, nil))
-			}
-		}
-	case 212:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1542
-		{
-			yyVAL.list = nil
-		}
-	case 213:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1546
-		{
-			yyVAL.list = list1(Nod(ODCLFIELD, nil, yyDollar[1].node))
-		}
-	case 214:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1550
-		{
-			yyDollar[2].list = checkarglist(yyDollar[2].list, 0)
-			yyVAL.list = yyDollar[2].list
-		}
-	case 215:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1557
-		{
-			closurehdr(yyDollar[1].node)
-		}
-	case 216:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1563
-		{
-			yyVAL.node = closurebody(yyDollar[3].list)
-			fixlbrace(yyDollar[2].i)
-		}
-	case 217:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1568
-		{
-			yyVAL.node = closurebody(nil)
-		}
-	case 218:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1579
-		{
-			yyVAL.list = nil
-		}
-	case 219:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1583
-		{
-			yyVAL.list = concat(yyDollar[1].list, yyDollar[2].list)
-			if nsyntaxerrors == 0 {
-				testdclstack()
-			}
-			noescape = false
-			noinline = false
-			nointerface = false
-			norace = false
-			nosplit = false
-			nowritebarrier = false
-			nowritebarrierrec = false
-			systemstack = false
-		}
-	case 221:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1601
-		{
-			yyVAL.list = concat(yyDollar[1].list, yyDollar[3].list)
-		}
-	case 223:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1608
-		{
-			yyVAL.list = concat(yyDollar[1].list, yyDollar[3].list)
-		}
-	case 224:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1614
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 225:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1618
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 227:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1625
-		{
-			yyVAL.list = concat(yyDollar[1].list, yyDollar[3].list)
-		}
-	case 228:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1631
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 229:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1635
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 230:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1641
-		{
-			var l *NodeList
-
-			var n *Node
-			l = yyDollar[1].list
-			if l == nil || l.N.Sym.Name == "?" {
-				// ? symbol, during import (list1(nil) == nil)
-				n = yyDollar[2].node
-				if n.Op == OIND {
-					n = n.Left
-				}
-				n = embedded(n.Sym, importpkg)
-				n.Right = yyDollar[2].node
-				n.SetVal(yyDollar[3].val)
-				yyVAL.list = list1(n)
-				break
-			}
-
-			for l = yyDollar[1].list; l != nil; l = l.Next {
-				l.N = Nod(ODCLFIELD, l.N, yyDollar[2].node)
-				l.N.SetVal(yyDollar[3].val)
-			}
-		}
-	case 231:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1665
-		{
-			yyDollar[1].node.SetVal(yyDollar[2].val)
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 232:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1670
-		{
-			yyDollar[2].node.SetVal(yyDollar[4].val)
-			yyVAL.list = list1(yyDollar[2].node)
-			Yyerror("cannot parenthesize embedded type")
-		}
-	case 233:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1676
-		{
-			yyDollar[2].node.Right = Nod(OIND, yyDollar[2].node.Right, nil)
-			yyDollar[2].node.SetVal(yyDollar[3].val)
-			yyVAL.list = list1(yyDollar[2].node)
-		}
-	case 234:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1682
-		{
-			yyDollar[3].node.Right = Nod(OIND, yyDollar[3].node.Right, nil)
-			yyDollar[3].node.SetVal(yyDollar[5].val)
-			yyVAL.list = list1(yyDollar[3].node)
-			Yyerror("cannot parenthesize embedded type")
-		}
-	case 235:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:1689
-		{
-			yyDollar[3].node.Right = Nod(OIND, yyDollar[3].node.Right, nil)
-			yyDollar[3].node.SetVal(yyDollar[5].val)
-			yyVAL.list = list1(yyDollar[3].node)
-			Yyerror("cannot parenthesize embedded type")
-		}
-	case 236:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1698
-		{
-			var n *Node
-
-			yyVAL.sym = yyDollar[1].sym
-			n = oldname(yyDollar[1].sym)
-			if n.Name != nil && n.Name.Pack != nil {
-				n.Name.Pack.Used = true
-			}
-		}
-	case 237:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1708
-		{
-			var pkg *Pkg
-
-			if yyDollar[1].sym.Def == nil || yyDollar[1].sym.Def.Op != OPACK {
-				Yyerror("%v is not a package", yyDollar[1].sym)
-				pkg = localpkg
-			} else {
-				yyDollar[1].sym.Def.Used = true
-				pkg = yyDollar[1].sym.Def.Name.Pkg
-			}
-			yyVAL.sym = restrictlookup(yyDollar[3].sym.Name, pkg)
-		}
-	case 238:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1723
-		{
-			yyVAL.node = embedded(yyDollar[1].sym, localpkg)
-		}
-	case 239:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1729
-		{
-			yyVAL.node = Nod(ODCLFIELD, yyDollar[1].node, yyDollar[2].node)
-			ifacedcl(yyVAL.node)
-		}
-	case 240:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1734
-		{
-			yyVAL.node = Nod(ODCLFIELD, nil, oldname(yyDollar[1].sym))
-		}
-	case 241:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1738
-		{
-			yyVAL.node = Nod(ODCLFIELD, nil, oldname(yyDollar[2].sym))
-			Yyerror("cannot parenthesize embedded type")
-		}
-	case 242:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1745
-		{
-			// without func keyword
-			yyDollar[2].list = checkarglist(yyDollar[2].list, 1)
-			yyVAL.node = Nod(OTFUNC, fakethis(), nil)
-			yyVAL.node.List = yyDollar[2].list
-			yyVAL.node.Rlist = yyDollar[4].list
-		}
-	case 244:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1759
-		{
-			yyVAL.node = Nod(ONONAME, nil, nil)
-			yyVAL.node.Sym = yyDollar[1].sym
-			yyVAL.node = Nod(OKEY, yyVAL.node, yyDollar[2].node)
-		}
-	case 245:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1765
-		{
-			yyVAL.node = Nod(ONONAME, nil, nil)
-			yyVAL.node.Sym = yyDollar[1].sym
-			yyVAL.node = Nod(OKEY, yyVAL.node, yyDollar[2].node)
-		}
-	case 247:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1774
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 248:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1778
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 249:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1783
-		{
-			yyVAL.list = nil
-		}
-	case 250:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1787
-		{
-			yyVAL.list = yyDollar[1].list
-		}
-	case 251:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1795
-		{
-			yyVAL.node = nil
-		}
-	case 253:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1800
-		{
-			yyVAL.node = liststmt(yyDollar[1].list)
-		}
-	case 255:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1805
-		{
-			yyVAL.node = nil
-		}
-	case 261:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1816
-		{
-			yyDollar[1].node = Nod(OLABEL, yyDollar[1].node, nil)
-			yyDollar[1].node.Sym = dclstack // context, for goto restrictions
-		}
-	case 262:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:1821
-		{
-			var l *NodeList
-
-			yyDollar[1].node.Name.Defn = yyDollar[4].node
-			l = list1(yyDollar[1].node)
-			if yyDollar[4].node != nil {
-				l = list(l, yyDollar[4].node)
-			}
-			yyVAL.node = liststmt(l)
-		}
-	case 263:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1832
-		{
-			// will be converted to OFALL
-			yyVAL.node = Nod(OXFALL, nil, nil)
-			yyVAL.node.Xoffset = int64(block)
-		}
-	case 264:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1838
-		{
-			yyVAL.node = Nod(OBREAK, yyDollar[2].node, nil)
-		}
-	case 265:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1842
-		{
-			yyVAL.node = Nod(OCONTINUE, yyDollar[2].node, nil)
-		}
-	case 266:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1846
-		{
-			yyVAL.node = Nod(OPROC, yyDollar[2].node, nil)
-		}
-	case 267:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1850
-		{
-			yyVAL.node = Nod(ODEFER, yyDollar[2].node, nil)
-		}
-	case 268:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1854
-		{
-			yyVAL.node = Nod(OGOTO, yyDollar[2].node, nil)
-			yyVAL.node.Sym = dclstack // context, for goto restrictions
-		}
-	case 269:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1859
-		{
-			yyVAL.node = Nod(ORETURN, nil, nil)
-			yyVAL.node.List = yyDollar[2].list
-			if yyVAL.node.List == nil && Curfn != nil {
-				var l *NodeList
-
-				for l = Curfn.Func.Dcl; l != nil; l = l.Next {
-					if l.N.Class == PPARAM {
-						continue
-					}
-					if l.N.Class != PPARAMOUT {
-						break
-					}
-					if l.N.Sym.Def != l.N {
-						Yyerror("%s is shadowed during return", l.N.Sym.Name)
-					}
-				}
-			}
-		}
-	case 270:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1881
-		{
-			yyVAL.list = nil
-			if yyDollar[1].node != nil {
-				yyVAL.list = list1(yyDollar[1].node)
-			}
-		}
-	case 271:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1888
-		{
-			yyVAL.list = yyDollar[1].list
-			if yyDollar[3].node != nil {
-				yyVAL.list = list(yyVAL.list, yyDollar[3].node)
-			}
-		}
-	case 272:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1897
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 273:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1901
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 274:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1907
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 275:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1911
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 276:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1917
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 277:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1921
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 278:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1927
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 279:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1931
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 280:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1940
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 281:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:1944
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 282:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1948
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 283:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:1952
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 284:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1957
-		{
-			yyVAL.list = nil
-		}
-	case 285:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:1961
-		{
-			yyVAL.list = yyDollar[1].list
-		}
-	case 290:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1975
-		{
-			yyVAL.node = nil
-		}
-	case 292:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1981
-		{
-			yyVAL.list = nil
-		}
-	case 294:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1987
-		{
-			yyVAL.node = nil
-		}
-	case 296:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1993
-		{
-			yyVAL.list = nil
-		}
-	case 298:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:1999
-		{
-			yyVAL.list = nil
-		}
-	case 300:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:2005
-		{
-			yyVAL.list = nil
-		}
-	case 302:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:2011
-		{
-			yyVAL.val.U = nil
-		}
-	case 304:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2021
-		{
-			importimport(yyDollar[2].sym, yyDollar[3].val.U.(string))
-		}
-	case 305:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2025
-		{
-			importvar(yyDollar[2].sym, yyDollar[3].typ)
-		}
-	case 306:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:2029
-		{
-			importconst(yyDollar[2].sym, Types[TIDEAL], yyDollar[4].node)
-		}
-	case 307:
-		yyDollar = yyS[yypt-6 : yypt+1]
-		//line go.y:2033
-		{
-			importconst(yyDollar[2].sym, yyDollar[3].typ, yyDollar[5].node)
-		}
-	case 308:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2037
-		{
-			importtype(yyDollar[2].typ, yyDollar[3].typ)
-		}
-	case 309:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2041
-		{
-			if yyDollar[2].node == nil {
-				dclcontext = PEXTERN // since we skip the funcbody below
-				break
-			}
-
-			yyDollar[2].node.Func.Inl = yyDollar[3].list
-
-			funcbody(yyDollar[2].node)
-			importlist = append(importlist, yyDollar[2].node)
-
-			if Debug['E'] > 0 {
-				fmt.Printf("import [%q] func %v \n", importpkg.Path, yyDollar[2].node)
-				if Debug['m'] > 2 && yyDollar[2].node.Func.Inl != nil {
-					fmt.Printf("inl body:%v\n", yyDollar[2].node.Func.Inl)
-				}
-			}
-		}
-	case 310:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2062
-		{
-			yyVAL.sym = yyDollar[1].sym
-			structpkg = yyVAL.sym.Pkg
-		}
-	case 311:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2069
-		{
-			yyVAL.typ = pkgtype(yyDollar[1].sym)
-			importsym(yyDollar[1].sym, OTYPE)
-		}
-	case 317:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2089
-		{
-			yyVAL.typ = pkgtype(yyDollar[1].sym)
-		}
-	case 318:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2093
-		{
-			// predefined name like uint8
-			yyDollar[1].sym = Pkglookup(yyDollar[1].sym.Name, builtinpkg)
-			if yyDollar[1].sym.Def == nil || yyDollar[1].sym.Def.Op != OTYPE {
-				Yyerror("%s is not a type", yyDollar[1].sym.Name)
-				yyVAL.typ = nil
-			} else {
-				yyVAL.typ = yyDollar[1].sym.Def.Type
-			}
-		}
-	case 319:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2104
-		{
-			yyVAL.typ = aindex(nil, yyDollar[3].typ)
-		}
-	case 320:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2108
-		{
-			yyVAL.typ = aindex(nodlit(yyDollar[2].val), yyDollar[4].typ)
-		}
-	case 321:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:2112
-		{
-			yyVAL.typ = maptype(yyDollar[3].typ, yyDollar[5].typ)
-		}
-	case 322:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2116
-		{
-			yyVAL.typ = tostruct(yyDollar[3].list)
-		}
-	case 323:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2120
-		{
-			yyVAL.typ = tointerface(yyDollar[3].list)
-		}
-	case 324:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:2124
-		{
-			yyVAL.typ = Ptrto(yyDollar[2].typ)
-		}
-	case 325:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:2128
-		{
-			yyVAL.typ = typ(TCHAN)
-			yyVAL.typ.Type = yyDollar[2].typ
-			yyVAL.typ.Chan = Cboth
-		}
-	case 326:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2134
-		{
-			yyVAL.typ = typ(TCHAN)
-			yyVAL.typ.Type = yyDollar[3].typ
-			yyVAL.typ.Chan = Cboth
-		}
-	case 327:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2140
-		{
-			yyVAL.typ = typ(TCHAN)
-			yyVAL.typ.Type = yyDollar[3].typ
-			yyVAL.typ.Chan = Csend
-		}
-	case 328:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2148
-		{
-			yyVAL.typ = typ(TCHAN)
-			yyVAL.typ.Type = yyDollar[3].typ
-			yyVAL.typ.Chan = Crecv
-		}
-	case 329:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:2156
-		{
-			yyVAL.typ = functype(nil, yyDollar[3].list, yyDollar[5].list)
-		}
-	case 330:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2162
-		{
-			yyVAL.node = Nod(ODCLFIELD, nil, typenod(yyDollar[2].typ))
-			if yyDollar[1].sym != nil {
-				yyVAL.node.Left = newname(yyDollar[1].sym)
-			}
-			yyVAL.node.SetVal(yyDollar[3].val)
-		}
-	case 331:
-		yyDollar = yyS[yypt-4 : yypt+1]
-		//line go.y:2170
-		{
-			var t *Type
-
-			t = typ(TARRAY)
-			t.Bound = -1
-			t.Type = yyDollar[3].typ
-
-			yyVAL.node = Nod(ODCLFIELD, nil, typenod(t))
-			if yyDollar[1].sym != nil {
-				yyVAL.node.Left = newname(yyDollar[1].sym)
-			}
-			yyVAL.node.Isddd = true
-			yyVAL.node.SetVal(yyDollar[4].val)
-		}
-	case 332:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2187
-		{
-			var s *Sym
-			var p *Pkg
-
-			if yyDollar[1].sym != nil && yyDollar[1].sym.Name != "?" {
-				yyVAL.node = Nod(ODCLFIELD, newname(yyDollar[1].sym), typenod(yyDollar[2].typ))
-				yyVAL.node.SetVal(yyDollar[3].val)
-			} else {
-				s = yyDollar[2].typ.Sym
-				if s == nil && Isptr[yyDollar[2].typ.Etype] {
-					s = yyDollar[2].typ.Type.Sym
-				}
-				p = importpkg
-				if yyDollar[1].sym != nil {
-					p = yyDollar[1].sym.Pkg
-				}
-				yyVAL.node = embedded(s, p)
-				yyVAL.node.Right = typenod(yyDollar[2].typ)
-				yyVAL.node.SetVal(yyDollar[3].val)
-			}
-		}
-	case 333:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:2211
-		{
-			yyVAL.node = Nod(ODCLFIELD, newname(yyDollar[1].sym), typenod(functype(fakethis(), yyDollar[3].list, yyDollar[5].list)))
-		}
-	case 334:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2215
-		{
-			yyVAL.node = Nod(ODCLFIELD, nil, typenod(yyDollar[1].typ))
-		}
-	case 335:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line go.y:2220
-		{
-			yyVAL.list = nil
-		}
-	case 337:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2227
-		{
-			yyVAL.list = yyDollar[2].list
-		}
-	case 338:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2231
-		{
-			yyVAL.list = list1(Nod(ODCLFIELD, nil, typenod(yyDollar[1].typ)))
-		}
-	case 339:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2241
-		{
-			yyVAL.node = nodlit(yyDollar[1].val)
-		}
-	case 340:
-		yyDollar = yyS[yypt-2 : yypt+1]
-		//line go.y:2245
-		{
-			yyVAL.node = nodlit(yyDollar[2].val)
-			switch yyVAL.node.Val().Ctype() {
-			case CTINT, CTRUNE:
-				mpnegfix(yyVAL.node.Val().U.(*Mpint))
-				break
-			case CTFLT:
-				mpnegflt(yyVAL.node.Val().U.(*Mpflt))
-				break
-			case CTCPLX:
-				mpnegflt(&yyVAL.node.Val().U.(*Mpcplx).Real)
-				mpnegflt(&yyVAL.node.Val().U.(*Mpcplx).Imag)
-				break
-			default:
-				Yyerror("bad negated constant")
-			}
-		}
-	case 341:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2263
-		{
-			yyVAL.node = oldname(Pkglookup(yyDollar[1].sym.Name, builtinpkg))
-			if yyVAL.node.Op != OLITERAL {
-				Yyerror("bad constant %v", yyVAL.node.Sym)
-			}
-		}
-	case 343:
-		yyDollar = yyS[yypt-5 : yypt+1]
-		//line go.y:2273
-		{
-			if yyDollar[2].node.Val().Ctype() == CTRUNE && yyDollar[4].node.Val().Ctype() == CTINT {
-				yyVAL.node = yyDollar[2].node
-				mpaddfixfix(yyDollar[2].node.Val().U.(*Mpint), yyDollar[4].node.Val().U.(*Mpint), 0)
-				break
-			}
-			yyDollar[4].node.Val().U.(*Mpcplx).Real = yyDollar[4].node.Val().U.(*Mpcplx).Imag
-			Mpmovecflt(&yyDollar[4].node.Val().U.(*Mpcplx).Imag, 0.0)
-			yyVAL.node = nodcplxlit(yyDollar[2].node.Val(), yyDollar[4].node.Val())
-		}
-	case 346:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2289
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 347:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2293
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 348:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2299
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 349:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2303
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	case 350:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line go.y:2309
-		{
-			yyVAL.list = list1(yyDollar[1].node)
-		}
-	case 351:
-		yyDollar = yyS[yypt-3 : yypt+1]
-		//line go.y:2313
-		{
-			yyVAL.list = list(yyDollar[1].list, yyDollar[3].node)
-		}
-	}
-	goto yystack /* stack new state and value */
-}
author	Robert Griesemer <gri@golang.org>	2015-11-23 14:11:15 -0800
committer	Robert Griesemer <gri@golang.org>	2015-11-24 00:23:14 +0000
commit	b5fe07710f4a31bfc100fbc2e344be11e4b4d3fc (patch)
tree	48825112724345765c439c903fde6e985758eb06 /src
parent	f1b919574cf8022d09afdece1f76b2c2b2529004 (diff)
download	go-b5fe07710f4a31bfc100fbc2e344be11e4b4d3fc.tar.xz