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//===- CIndex.cpp - Clang-C Source Indexing Library -----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Clang-C Source Indexing library.
//
//===----------------------------------------------------------------------===//
#include "clang-c/Index.h"
#include "clang/Index/Program.h"
#include "clang/Index/Indexer.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/Basic/FileManager.h"
#include "clang/Frontend/ASTUnit.h"
#include <cstdio>
using namespace clang;
using namespace idx;
namespace {
// Translation Unit Visitor.
class TUVisitor : public DeclVisitor<TUVisitor> {
CXTranslationUnit TUnit;
CXTranslationUnitIterator Callback;
public:
TUVisitor(CXTranslationUnit CTU, CXTranslationUnitIterator cback) :
TUnit(CTU), Callback(cback) {}
void VisitTranslationUnitDecl(TranslationUnitDecl *D) {
VisitDeclContext(dyn_cast<DeclContext>(D));
}
void VisitDeclContext(DeclContext *DC) {
for (DeclContext::decl_iterator
I = DC->decls_begin(), E = DC->decls_end(); I != E; ++I)
Visit(*I);
}
void VisitTypedefDecl(TypedefDecl *ND) {
CXCursor C = { CXCursor_TypedefDecl, ND };
Callback(TUnit, C);
}
void VisitTagDecl(TagDecl *ND) {
CXCursor C = { ND->isEnum() ? CXCursor_EnumDecl : CXCursor_RecordDecl, ND };
Callback(TUnit, C);
}
void VisitFunctionDecl(FunctionDecl *ND) {
CXCursor C = { CXCursor_FunctionDecl, ND };
Callback(TUnit, C);
}
void VisitObjCInterfaceDecl(ObjCInterfaceDecl *ND) {
CXCursor C = { CXCursor_ObjCInterfaceDecl, ND };
Callback(TUnit, C);
}
void VisitObjCCategoryDecl(ObjCCategoryDecl *ND) {
CXCursor C = { CXCursor_ObjCCategoryDecl, ND };
Callback(TUnit, C);
}
void VisitObjCProtocolDecl(ObjCProtocolDecl *ND) {
CXCursor C = { CXCursor_ObjCProtocolDecl, ND };
Callback(TUnit, C);
}
};
// Top-level declaration visitor.
class TLDeclVisitor : public DeclVisitor<TLDeclVisitor> {
public:
void VisitDeclContext(DeclContext *DC) {
for (DeclContext::decl_iterator
I = DC->decls_begin(), E = DC->decls_end(); I != E; ++I)
Visit(*I);
}
void VisitEnumConstantDecl(EnumConstantDecl *ND) {
}
void VisitFieldDecl(FieldDecl *ND) {
}
void VisitObjCIvarDecl(ObjCIvarDecl *ND) {
}
};
}
extern "C" {
CXIndex clang_createIndex()
{
return new Indexer(*new Program(), *new FileManager());
}
// FIXME: need to pass back error info.
CXTranslationUnit clang_createTranslationUnit(
CXIndex CIdx, const char *ast_filename)
{
assert(CIdx && "Passed null CXIndex");
Indexer *CXXIdx = static_cast<Indexer *>(CIdx);
std::string astName(ast_filename);
std::string ErrMsg;
return ASTUnit::LoadFromPCHFile(astName, CXXIdx->getFileManager(), &ErrMsg);
}
void clang_loadTranslationUnit(
CXTranslationUnit CTUnit, CXTranslationUnitIterator callback)
{
assert(CTUnit && "Passed null CXTranslationUnit");
ASTUnit *CXXUnit = static_cast<ASTUnit *>(CTUnit);
ASTContext &Ctx = CXXUnit->getASTContext();
TUVisitor DVisit(CTUnit, callback);
DVisit.Visit(Ctx.getTranslationUnitDecl());
}
void clang_loadDeclaration(CXDecl, CXDeclIterator)
{
}
// Some notes on CXEntity:
//
// - Since the 'ordinary' namespace includes functions, data, typedefs,
// ObjC interfaces, thecurrent algorithm is a bit naive (resulting in one
// entity for 2 different types). For example:
//
// module1.m: @interface Foo @end Foo *x;
// module2.m: void Foo(int);
//
// - Since the unique name spans translation units, static data/functions
// within a CXTranslationUnit are *not* currently represented by entities.
// As a result, there will be no entity for the following:
//
// module.m: static void Foo() { }
//
const char *clang_getDeclarationName(CXEntity)
{
return "";
}
const char *clang_getURI(CXEntity)
{
return "";
}
CXEntity clang_getEntity(const char *URI)
{
return 0;
}
//
// CXDecl Operations.
//
CXCursor clang_getCursorFromDecl(CXDecl)
{
return CXCursor();
}
CXEntity clang_getEntityFromDecl(CXDecl)
{
return 0;
}
const char *clang_getDeclSpelling(CXDecl AnonDecl)
{
assert(AnonDecl && "Passed null CXDecl");
NamedDecl *ND = static_cast<NamedDecl *>(AnonDecl);
if (ND->getIdentifier())
return ND->getIdentifier()->getName();
else
return "";
}
const char *clang_getKindSpelling(enum CXCursorKind Kind)
{
switch (Kind) {
case CXCursor_FunctionDecl: return "FunctionDecl";
case CXCursor_TypedefDecl: return "TypedefDecl";
case CXCursor_EnumDecl: return "EnumDecl";
case CXCursor_EnumConstantDecl: return "EnumConstantDecl";
case CXCursor_RecordDecl: return "RecordDecl";
case CXCursor_FieldDecl: return "FieldDecl";
case CXCursor_VarDecl: return "VarDecl";
case CXCursor_ParmDecl: return "ParmDecl";
case CXCursor_ObjCInterfaceDecl: return "ObjCInterfaceDecl";
case CXCursor_ObjCCategoryDecl: return "ObjCCategoryDecl";
case CXCursor_ObjCProtocolDecl: return "ObjCProtocolDecl";
case CXCursor_ObjCPropertyDecl: return "ObjCPropertyDecl";
case CXCursor_ObjCIvarDecl: return "ObjCIvarDecl";
case CXCursor_ObjCMethodDecl: return "ObjCMethodDecl";
default: return "<not implemented>";
}
}
//
// CXCursor Operations.
//
CXCursor clang_getCursor(CXTranslationUnit, const char *source_name,
unsigned line, unsigned column)
{
return CXCursor();
}
CXCursorKind clang_getCursorKind(CXCursor)
{
return CXCursor_Invalid;
}
unsigned clang_isDeclaration(enum CXCursorKind K)
{
return K >= CXCursor_FirstDecl && K <= CXCursor_LastDecl;
}
unsigned clang_getCursorLine(CXCursor)
{
return 0;
}
unsigned clang_getCursorColumn(CXCursor)
{
return 0;
}
const char *clang_getCursorSource(CXCursor)
{
return "";
}
// If CXCursorKind == Cursor_Reference, then this will return the referenced declaration.
// If CXCursorKind == Cursor_Declaration, then this will return the declaration.
CXDecl clang_getCursorDecl(CXCursor)
{
return 0;
}
} // end extern "C"
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