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authorKeith Randall <khr@golang.org>2017-05-31 09:02:40 -0700
committerKeith Randall <khr@golang.org>2017-08-15 01:52:29 +0000
commit98d0634b7a50cf311de16606a9b56f6ae8ebf106 (patch)
tree8220d5e1cb5d537c7595578437e56a8a192d2c39 /src/runtime/runtime2.go
parent3d1699ea787f38be6088f9a098d6e08dafca9387 (diff)
downloadgo-98d0634b7a50cf311de16606a9b56f6ae8ebf106.tar.xz
runtime: remove bad field from itab
Just use fun[0]==0 to indicate a bad itab. Change-Id: I28ecb2d2d857090c1ecc40b1d1866ac24a844848 Reviewed-on: https://go-review.googlesource.com/44473 Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Diffstat (limited to 'src/runtime/runtime2.go')
-rw-r--r--src/runtime/runtime2.go5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/runtime/runtime2.go b/src/runtime/runtime2.go
index 456b650f5c..ebcbe65820 100644
--- a/src/runtime/runtime2.go
+++ b/src/runtime/runtime2.go
@@ -628,9 +628,8 @@ type itab struct {
_type *_type
_ uintptr
hash uint32 // copy of _type.hash. Used for type switches.
- bad bool // type does not implement interface
- _ [3]byte
- fun [1]uintptr // variable sized
+ _ [4]byte
+ fun [1]uintptr // variable sized. fun[0]==0 means _type does not implement inter.
}
// Lock-free stack node.