1 //===- unittests/Frontend/FrontendActionTest.cpp - FrontendAction tests ---===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "clang/AST/RecursiveASTVisitor.h"
11 #include "clang/AST/ASTConsumer.h"
12 #include "clang/Frontend/CompilerInstance.h"
13 #include "clang/Frontend/CompilerInvocation.h"
14 #include "clang/Frontend/FrontendAction.h"
15
16 #include "llvm/ADT/Triple.h"
17 #include "llvm/Support/MemoryBuffer.h"
18
19 #include "gtest/gtest.h"
20
21 using namespace llvm;
22 using namespace clang;
23
24 namespace {
25
26 class TestASTFrontendAction : public ASTFrontendAction {
27 public:
28 std::vector<std::string> decl_names;
29
CreateASTConsumer(CompilerInstance & CI,StringRef InFile)30 virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
31 StringRef InFile) {
32 return new Visitor(decl_names);
33 }
34
35 private:
36 class Visitor : public ASTConsumer, public RecursiveASTVisitor<Visitor> {
37 public:
Visitor(std::vector<std::string> & decl_names)38 Visitor(std::vector<std::string> &decl_names) : decl_names_(decl_names) {}
39
HandleTranslationUnit(ASTContext & context)40 virtual void HandleTranslationUnit(ASTContext &context) {
41 TraverseDecl(context.getTranslationUnitDecl());
42 }
43
VisitNamedDecl(NamedDecl * Decl)44 virtual bool VisitNamedDecl(NamedDecl *Decl) {
45 decl_names_.push_back(Decl->getQualifiedNameAsString());
46 return true;
47 }
48
49 private:
50 std::vector<std::string> &decl_names_;
51 };
52 };
53
TEST(ASTFrontendAction,Sanity)54 TEST(ASTFrontendAction, Sanity) {
55 CompilerInvocation *invocation = new CompilerInvocation;
56 invocation->getPreprocessorOpts().addRemappedFile(
57 "test.cc", MemoryBuffer::getMemBuffer("int main() { float x; }"));
58 invocation->getFrontendOpts().Inputs.push_back(
59 std::make_pair(IK_CXX, "test.cc"));
60 invocation->getFrontendOpts().ProgramAction = frontend::ParseSyntaxOnly;
61 invocation->getTargetOpts().Triple = "i386-unknown-linux-gnu";
62 CompilerInstance compiler;
63 compiler.setInvocation(invocation);
64 compiler.createDiagnostics(0, NULL);
65
66 TestASTFrontendAction test_action;
67 ASSERT_TRUE(compiler.ExecuteAction(test_action));
68 ASSERT_EQ(3U, test_action.decl_names.size());
69 EXPECT_EQ("__builtin_va_list", test_action.decl_names[0]);
70 EXPECT_EQ("main", test_action.decl_names[1]);
71 EXPECT_EQ("x", test_action.decl_names[2]);
72 }
73
74 } // anonymous namespace
75