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cgo: fix enum const conflict

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This change prevents enum consts from conflicting with themselves
when loaded twice in different go files.

Fixes #1400.

R=rsc
CC=golang-dev
https://golang.org/cl/3849044
This commit is contained in:
Gustavo Niemeyer 2011-01-11 10:15:49 -05:00 committed by Russ Cox
parent 4bdaf59cc9
commit 02ff646fef
1 changed files with 5 additions and 1 deletions
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6
src/cmd/cgo/gcc.go
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@ -372,8 +372,12 @@ func (p *Package) loadDWARF(f *File, names []*Name) {
} else {
n.Type = conv.Type(types[i])
if enums[i] != 0 && n.Type.EnumValues != nil {
k := fmt.Sprintf("__cgo_enum__%d", i)
n.Kind = "const"
n.Const = strconv.Itoa64(n.Type.EnumValues[fmt.Sprintf("__cgo_enum__%d", i)])
n.Const = strconv.Itoa64(n.Type.EnumValues[k])
// Remove injected enum to ensure the value will deep-compare
// equally in future loads of the same constant.
n.Type.EnumValues[k] = 0, false
}
}
}