forked from OSchip/llvm-project
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
//===--- Decl.cpp - Declaration AST Node Implementation -------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Chris Lattner and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the Decl class and subclasses.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/Decl.h"
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#include "clang/Lex/IdentifierTable.h"
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using namespace llvm;
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using namespace clang;
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// Out-of-line virtual method providing a home for Decl.
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Decl::~Decl() {
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}
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const char *Decl::getName() const {
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if (const IdentifierInfo *II = getIdentifier())
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return II->getName();
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return "";
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}
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FunctionDecl::~FunctionDecl() {
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delete[] ParamInfo;
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}
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unsigned FunctionDecl::getNumParams() const {
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return cast<FunctionTypeProto>(getType().getTypePtr())->getNumArgs();
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}
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void FunctionDecl::setParams(VarDecl **NewParamInfo, unsigned NumParams) {
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assert(ParamInfo == 0 && "Already has param info!");
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assert(NumParams == getNumParams() && "Parameter count mismatch!");
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// Zero params -> null pointer.
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if (NumParams) {
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ParamInfo = new VarDecl*[NumParams];
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memcpy(ParamInfo, NewParamInfo, sizeof(VarDecl*)*NumParams);
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}
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}
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/// defineElements - When created, EnumDecl correspond to a forward declared
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/// enum. This method is used to mark the decl as being defined, with the
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/// specified contents.
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void EnumDecl::defineElements(EnumConstantDecl **Elts, unsigned NumElts) {
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assert(!isDefinition() && "Cannot redefine enums!");
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setDefinition(true);
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NumElements = NumElts;
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if (NumElts) {
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Elements = new EnumConstantDecl*[NumElts];
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memcpy(Elements, Elts, NumElts*sizeof(Decl*));
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}
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}
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/// defineBody - When created, RecordDecl's correspond to a forward declared
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/// record. This method is used to mark the decl as being defined, with the
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/// specified contents.
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void RecordDecl::defineBody(FieldDecl **members, unsigned numMembers) {
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assert(!isDefinition() && "Cannot redefine record!");
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setDefinition(true);
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NumMembers = numMembers;
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if (numMembers) {
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Members = new FieldDecl*[numMembers];
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memcpy(Members, members, numMembers*sizeof(Decl*));
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}
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}
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FieldDecl* RecordDecl::getMember(IdentifierInfo *name) {
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if (Members == 0 || NumMembers < 0)
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return 0;
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// linear search. When C++ classes come along, will likely need to revisit.
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for (int i = 0; i < NumMembers; ++i) {
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if (Members[i]->getIdentifier() == name)
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return Members[i];
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}
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return 0;
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}
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