354 lines
11 KiB
C++
354 lines
11 KiB
C++
//===- unittests/Lex/PPCallbacksTest.cpp - PPCallbacks tests ------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===--------------------------------------------------------------===//
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#include "clang/Lex/Preprocessor.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Basic/DiagnosticOptions.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/LangOptions.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Basic/TargetInfo.h"
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#include "clang/Basic/TargetOptions.h"
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#include "clang/Lex/HeaderSearch.h"
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#include "clang/Lex/HeaderSearchOptions.h"
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#include "clang/Lex/ModuleLoader.h"
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#include "clang/Lex/PreprocessorOptions.h"
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#include "clang/Parse/Parser.h"
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#include "clang/Sema/Sema.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Support/Path.h"
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#include "gtest/gtest.h"
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using namespace clang;
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namespace {
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// Stub out module loading.
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class VoidModuleLoader : public ModuleLoader {
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ModuleLoadResult loadModule(SourceLocation ImportLoc,
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ModuleIdPath Path,
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Module::NameVisibilityKind Visibility,
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bool IsInclusionDirective) override {
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return ModuleLoadResult();
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}
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void makeModuleVisible(Module *Mod,
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Module::NameVisibilityKind Visibility,
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SourceLocation ImportLoc,
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bool Complain) override { }
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GlobalModuleIndex *loadGlobalModuleIndex(SourceLocation TriggerLoc) override
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{ return nullptr; }
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bool lookupMissingImports(StringRef Name, SourceLocation TriggerLoc) override
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{ return 0; };
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};
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// Stub to collect data from InclusionDirective callbacks.
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class InclusionDirectiveCallbacks : public PPCallbacks {
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public:
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void InclusionDirective(SourceLocation HashLoc,
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const Token &IncludeTok,
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StringRef FileName,
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bool IsAngled,
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CharSourceRange FilenameRange,
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const FileEntry *File,
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StringRef SearchPath,
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StringRef RelativePath,
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const Module *Imported) {
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this->HashLoc = HashLoc;
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this->IncludeTok = IncludeTok;
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this->FileName = FileName.str();
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this->IsAngled = IsAngled;
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this->FilenameRange = FilenameRange;
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this->File = File;
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this->SearchPath = SearchPath.str();
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this->RelativePath = RelativePath.str();
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this->Imported = Imported;
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}
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SourceLocation HashLoc;
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Token IncludeTok;
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SmallString<16> FileName;
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bool IsAngled;
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CharSourceRange FilenameRange;
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const FileEntry* File;
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SmallString<16> SearchPath;
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SmallString<16> RelativePath;
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const Module* Imported;
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};
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// Stub to collect data from PragmaOpenCLExtension callbacks.
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class PragmaOpenCLExtensionCallbacks : public PPCallbacks {
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public:
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typedef struct {
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SmallString<16> Name;
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unsigned State;
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} CallbackParameters;
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PragmaOpenCLExtensionCallbacks() : Name("Not called."), State(99) {};
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void PragmaOpenCLExtension(
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clang::SourceLocation NameLoc, const clang::IdentifierInfo *Name,
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clang::SourceLocation StateLoc, unsigned State) {
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this->NameLoc = NameLoc;
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this->Name = Name->getName();
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this->StateLoc = StateLoc;
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this->State = State;
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};
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SourceLocation NameLoc;
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SmallString<16> Name;
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SourceLocation StateLoc;
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unsigned State;
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};
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// PPCallbacks test fixture.
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class PPCallbacksTest : public ::testing::Test {
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protected:
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PPCallbacksTest()
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: FileMgr(FileMgrOpts), DiagID(new DiagnosticIDs()),
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DiagOpts(new DiagnosticOptions()),
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Diags(DiagID, DiagOpts.get(), new IgnoringDiagConsumer()),
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SourceMgr(Diags, FileMgr), TargetOpts(new TargetOptions()) {
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TargetOpts->Triple = "x86_64-apple-darwin11.1.0";
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Target = TargetInfo::CreateTargetInfo(Diags, TargetOpts);
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}
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FileSystemOptions FileMgrOpts;
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FileManager FileMgr;
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IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
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IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts;
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DiagnosticsEngine Diags;
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SourceManager SourceMgr;
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LangOptions LangOpts;
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std::shared_ptr<TargetOptions> TargetOpts;
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IntrusiveRefCntPtr<TargetInfo> Target;
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// Register a header path as a known file and add its location
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// to search path.
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void AddFakeHeader(HeaderSearch& HeaderInfo, const char* HeaderPath,
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bool IsSystemHeader) {
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// Tell FileMgr about header.
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FileMgr.getVirtualFile(HeaderPath, 0, 0);
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// Add header's parent path to search path.
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StringRef SearchPath = llvm::sys::path::parent_path(HeaderPath);
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const DirectoryEntry *DE = FileMgr.getDirectory(SearchPath);
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DirectoryLookup DL(DE, SrcMgr::C_User, false);
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HeaderInfo.AddSearchPath(DL, IsSystemHeader);
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}
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// Get the raw source string of the range.
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StringRef GetSourceString(CharSourceRange Range) {
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const char* B = SourceMgr.getCharacterData(Range.getBegin());
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const char* E = SourceMgr.getCharacterData(Range.getEnd());
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return StringRef(B, E - B);
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}
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// Run lexer over SourceText and collect FilenameRange from
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// the InclusionDirective callback.
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CharSourceRange InclusionDirectiveFilenameRange(const char* SourceText,
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const char* HeaderPath, bool SystemHeader) {
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std::unique_ptr<llvm::MemoryBuffer> Buf =
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llvm::MemoryBuffer::getMemBuffer(SourceText);
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SourceMgr.setMainFileID(SourceMgr.createFileID(std::move(Buf)));
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VoidModuleLoader ModLoader;
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IntrusiveRefCntPtr<HeaderSearchOptions> HSOpts = new HeaderSearchOptions();
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HeaderSearch HeaderInfo(HSOpts, SourceMgr, Diags, LangOpts,
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Target.get());
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AddFakeHeader(HeaderInfo, HeaderPath, SystemHeader);
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IntrusiveRefCntPtr<PreprocessorOptions> PPOpts = new PreprocessorOptions();
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Preprocessor PP(PPOpts, Diags, LangOpts, SourceMgr, HeaderInfo, ModLoader,
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/*IILookup =*/nullptr,
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/*OwnsHeaderSearch =*/false);
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PP.Initialize(*Target);
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InclusionDirectiveCallbacks* Callbacks = new InclusionDirectiveCallbacks;
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PP.addPPCallbacks(std::unique_ptr<PPCallbacks>(Callbacks));
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// Lex source text.
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PP.EnterMainSourceFile();
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while (true) {
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Token Tok;
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PP.Lex(Tok);
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if (Tok.is(tok::eof))
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break;
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}
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// Callbacks have been executed at this point -- return filename range.
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return Callbacks->FilenameRange;
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}
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PragmaOpenCLExtensionCallbacks::CallbackParameters
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PragmaOpenCLExtensionCall(const char* SourceText) {
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LangOptions OpenCLLangOpts;
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OpenCLLangOpts.OpenCL = 1;
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std::unique_ptr<llvm::MemoryBuffer> SourceBuf =
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llvm::MemoryBuffer::getMemBuffer(SourceText, "test.cl");
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SourceMgr.setMainFileID(SourceMgr.createFileID(std::move(SourceBuf)));
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VoidModuleLoader ModLoader;
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HeaderSearch HeaderInfo(new HeaderSearchOptions, SourceMgr, Diags,
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OpenCLLangOpts, Target.get());
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Preprocessor PP(new PreprocessorOptions(), Diags, OpenCLLangOpts, SourceMgr,
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HeaderInfo, ModLoader, /*IILookup =*/nullptr,
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/*OwnsHeaderSearch =*/false);
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PP.Initialize(*Target);
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// parser actually sets correct pragma handlers for preprocessor
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// according to LangOptions, so we init Parser to register opencl
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// pragma handlers
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ASTContext Context(OpenCLLangOpts, SourceMgr,
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PP.getIdentifierTable(), PP.getSelectorTable(),
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PP.getBuiltinInfo());
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Context.InitBuiltinTypes(*Target);
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ASTConsumer Consumer;
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Sema S(PP, Context, Consumer);
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Parser P(PP, S, false);
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PragmaOpenCLExtensionCallbacks* Callbacks = new PragmaOpenCLExtensionCallbacks;
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PP.addPPCallbacks(std::unique_ptr<PPCallbacks>(Callbacks));
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// Lex source text.
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PP.EnterMainSourceFile();
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while (true) {
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Token Tok;
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PP.Lex(Tok);
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if (Tok.is(tok::eof))
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break;
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}
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PragmaOpenCLExtensionCallbacks::CallbackParameters RetVal = {
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Callbacks->Name,
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Callbacks->State
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};
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return RetVal;
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}
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};
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TEST_F(PPCallbacksTest, QuotedFilename) {
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const char* Source =
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"#include \"quoted.h\"\n";
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CharSourceRange Range =
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InclusionDirectiveFilenameRange(Source, "/quoted.h", false);
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ASSERT_EQ("\"quoted.h\"", GetSourceString(Range));
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}
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TEST_F(PPCallbacksTest, AngledFilename) {
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const char* Source =
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"#include <angled.h>\n";
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CharSourceRange Range =
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InclusionDirectiveFilenameRange(Source, "/angled.h", true);
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ASSERT_EQ("<angled.h>", GetSourceString(Range));
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}
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TEST_F(PPCallbacksTest, QuotedInMacro) {
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const char* Source =
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"#define MACRO_QUOTED \"quoted.h\"\n"
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"#include MACRO_QUOTED\n";
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CharSourceRange Range =
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InclusionDirectiveFilenameRange(Source, "/quoted.h", false);
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ASSERT_EQ("\"quoted.h\"", GetSourceString(Range));
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}
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TEST_F(PPCallbacksTest, AngledInMacro) {
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const char* Source =
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"#define MACRO_ANGLED <angled.h>\n"
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"#include MACRO_ANGLED\n";
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CharSourceRange Range =
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InclusionDirectiveFilenameRange(Source, "/angled.h", true);
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ASSERT_EQ("<angled.h>", GetSourceString(Range));
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}
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TEST_F(PPCallbacksTest, StringizedMacroArgument) {
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const char* Source =
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"#define MACRO_STRINGIZED(x) #x\n"
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"#include MACRO_STRINGIZED(quoted.h)\n";
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CharSourceRange Range =
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InclusionDirectiveFilenameRange(Source, "/quoted.h", false);
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ASSERT_EQ("\"quoted.h\"", GetSourceString(Range));
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}
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TEST_F(PPCallbacksTest, ConcatenatedMacroArgument) {
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const char* Source =
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"#define MACRO_ANGLED <angled.h>\n"
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"#define MACRO_CONCAT(x, y) x ## _ ## y\n"
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"#include MACRO_CONCAT(MACRO, ANGLED)\n";
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CharSourceRange Range =
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InclusionDirectiveFilenameRange(Source, "/angled.h", false);
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ASSERT_EQ("<angled.h>", GetSourceString(Range));
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}
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TEST_F(PPCallbacksTest, TrigraphFilename) {
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const char* Source =
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"#include \"tri\?\?-graph.h\"\n";
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CharSourceRange Range =
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InclusionDirectiveFilenameRange(Source, "/tri~graph.h", false);
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ASSERT_EQ("\"tri\?\?-graph.h\"", GetSourceString(Range));
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}
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TEST_F(PPCallbacksTest, TrigraphInMacro) {
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const char* Source =
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"#define MACRO_TRIGRAPH \"tri\?\?-graph.h\"\n"
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"#include MACRO_TRIGRAPH\n";
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CharSourceRange Range =
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InclusionDirectiveFilenameRange(Source, "/tri~graph.h", false);
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ASSERT_EQ("\"tri\?\?-graph.h\"", GetSourceString(Range));
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}
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TEST_F(PPCallbacksTest, OpenCLExtensionPragmaEnabled) {
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const char* Source =
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"#pragma OPENCL EXTENSION cl_khr_fp64 : enable\n";
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PragmaOpenCLExtensionCallbacks::CallbackParameters Parameters =
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PragmaOpenCLExtensionCall(Source);
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ASSERT_EQ("cl_khr_fp64", Parameters.Name);
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unsigned ExpectedState = 1;
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ASSERT_EQ(ExpectedState, Parameters.State);
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}
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TEST_F(PPCallbacksTest, OpenCLExtensionPragmaDisabled) {
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const char* Source =
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"#pragma OPENCL EXTENSION cl_khr_fp16 : disable\n";
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PragmaOpenCLExtensionCallbacks::CallbackParameters Parameters =
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PragmaOpenCLExtensionCall(Source);
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ASSERT_EQ("cl_khr_fp16", Parameters.Name);
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unsigned ExpectedState = 0;
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ASSERT_EQ(ExpectedState, Parameters.State);
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}
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} // anonoymous namespace
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