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Reclaim memory allocated for ParmVarDecl's in FunctionDecl::Destroy. 

Fixed a bug in ParmVarDecl::param_end(): Handle the case where there are no
ParmVarDecls for a FunctionDecl, but its function prototype has formal arguments
(can happen with typedefs).

llvm-svn: 51297
This commit is contained in:
Ted Kremenek 2008-05-20 03:56:00 +00:00
parent 9c27f96d04
commit fa8a09e0bc
2 changed files with 23 additions and 3 deletions
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19
clang/include/clang/AST/Decl.h
View File

@ -446,10 +446,25 @@ public:
unsigned param_size() const { return getNumParams(); }
typedef ParmVarDecl **param_iterator;
typedef ParmVarDecl * const *param_const_iterator;
param_iterator param_begin() { return ParamInfo; }
param_iterator param_end() { return ParamInfo+param_size(); }
param_iterator param_end() {
// Special-case for handling typedefs:
//
// typedef void func_t(int x);
// func_t a;
//
// In the case of the FunctionDecl for "a", there are no ParmVarDecls.
return ParamInfo ? ParamInfo+param_size() : 0x0;
}
param_const_iterator param_begin() const { return ParamInfo; }
param_const_iterator param_end() const { return ParamInfo+param_size(); }
param_const_iterator param_end() const {
return ParamInfo ? ParamInfo+param_size() : 0x0;
}
unsigned getNumParams() const;
const ParmVarDecl *getParamDecl(unsigned i) const {

7
clang/lib/AST/Decl.cpp
View File

@ -412,7 +412,12 @@ FunctionDecl::~FunctionDecl() {
}
void FunctionDecl::Destroy(ASTContext& C) {
if (Body) Body->Destroy(C);
if (Body)
Body->Destroy(C);
for (param_iterator I=param_begin(), E=param_end(); I!=E; ++I)
(*I)->Destroy(C);
Decl::Destroy(C);
}