BufferSourceTest.cpp source code [clang_source_code/unittests/CodeGen/BufferSourceTest.cpp]

1	//===- unittests/CodeGen/BufferSourceTest.cpp - MemoryBuffer source tests -===//
2	//
3	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4	// See https://llvm.org/LICENSE.txt for license information.
5	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6	//
7	//===----------------------------------------------------------------------===//
8
9	#include "clang/AST/ASTConsumer.h"
10	#include "clang/AST/ASTContext.h"
11	#include "clang/AST/RecursiveASTVisitor.h"
12	#include "clang/Basic/TargetInfo.h"
13	#include "clang/CodeGen/ModuleBuilder.h"
14	#include "clang/Frontend/CompilerInstance.h"
15	#include "clang/Lex/Preprocessor.h"
16	#include "clang/Parse/ParseAST.h"
17	#include "clang/Sema/Sema.h"
18	#include "llvm/ADT/Triple.h"
19	#include "llvm/IR/LLVMContext.h"
20	#include "llvm/Support/Host.h"
21	#include "llvm/Support/MemoryBuffer.h"
22	#include "gtest/gtest.h"
23
24	using namespace llvm;
25	using namespace clang;
26
27	namespace {
28
29	// Emitting constructors for global objects involves looking
30	// at the source file name. This makes sure that we don't crash
31	// if the source file is a memory buffer.
32	const char TestProgram[] =
33	"class EmitCXXGlobalInitFunc "
34	"{ "
35	"public: "
36	" EmitCXXGlobalInitFunc() {} "
37	"}; "
38	"EmitCXXGlobalInitFunc test; ";
39
40	TEST(BufferSourceTest, EmitCXXGlobalInitFunc) {
41	LLVMContext Context;
42	CompilerInstance compiler;
43
44	compiler.createDiagnostics();
45	compiler.getLangOpts().CPlusPlus = 1;
46	compiler.getLangOpts().CPlusPlus11 = 1;
47
48	compiler.getTargetOpts().Triple = llvm::Triple::normalize(
49	llvm::sys::getProcessTriple());
50	compiler.setTarget(clang::TargetInfo::CreateTargetInfo(
51	compiler.getDiagnostics(),
52	std::make_shared<clang::TargetOptions>(
53	compiler.getTargetOpts())));
54
55	compiler.createFileManager();
56	compiler.createSourceManager(compiler.getFileManager());
57	compiler.createPreprocessor(clang::TU_Prefix);
58
59	compiler.createASTContext();
60
61	compiler.setASTConsumer(std::unique_ptr<ASTConsumer>(
62	CreateLLVMCodeGen(
63	compiler.getDiagnostics(),
64	"EmitCXXGlobalInitFuncTest",
65	compiler.getHeaderSearchOpts(),
66	compiler.getPreprocessorOpts(),
67	compiler.getCodeGenOpts(),
68	Context)));
69
70	compiler.createSema(clang::TU_Prefix, nullptr);
71
72	clang::SourceManager &sm = compiler.getSourceManager();
73	sm.setMainFileID(sm.createFileID(
74	llvm::MemoryBuffer::getMemBuffer(TestProgram), clang::SrcMgr::C_User));
75
76	clang::ParseAST(compiler.getSema(), false, false);
77	}
78
79	} // end anonymous namespace
80

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