diff options
Diffstat (limited to 'src/cmd/compile')
| -rw-r--r-- | src/cmd/compile/internal/types2/builtins.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/types2/builtins.go b/src/cmd/compile/internal/types2/builtins.go index f3763862ec..7a209e7a97 100644 --- a/src/cmd/compile/internal/types2/builtins.go +++ b/src/cmd/compile/internal/types2/builtins.go @@ -576,6 +576,11 @@ func (check *Checker) builtin(x *operand, call *syntax.CallExpr, id builtinId) ( // If nargs == 1, make sure x.mode is either a value or a constant. if x.mode != constant_ { x.mode = value + // A value must not be untyped. + check.assignment(x, &emptyInterface, "argument to "+bin.name) + if x.mode == invalid { + return + } } // Use the final type computed above for all arguments. |