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translate-c: add support for __cleanup__ attribute

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Use a `defer` statement to implement the C __cleanup__ attribute.

See https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html
This commit is contained in:
Evan Haas
2021-05-18 21:59:45 -07:00
committed by Veikka Tuominen
parent 28a89b9ebc
commit 1273bc277f
6 changed files with 60 additions and 0 deletions
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8
src/zig_clang.cpp
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@@ -1784,6 +1784,14 @@ unsigned ZigClangVarDecl_getAlignedAttribute(const struct ZigClangVarDecl *self,
return 0;
}
const struct ZigClangFunctionDecl *ZigClangVarDecl_getCleanupAttribute(const struct ZigClangVarDecl *self) {
auto casted_self = reinterpret_cast<const clang::VarDecl *>(self);
if (const clang::CleanupAttr *CA = casted_self->getAttr<clang::CleanupAttr>()) {
return reinterpret_cast<const ZigClangFunctionDecl *>(CA->getFunctionDecl());
}
return nullptr;
}
unsigned ZigClangFieldDecl_getAlignedAttribute(const struct ZigClangFieldDecl *self, const ZigClangASTContext* ctx) {
auto casted_self = reinterpret_cast<const clang::FieldDecl *>(self);
auto casted_ctx = const_cast<clang::ASTContext *>(reinterpret_cast<const clang::ASTContext *>(ctx));