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llvm-project/clang/unittests/AST/SourceLocationTest.cpp

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//===- unittest/AST/SourceLocationTest.cpp - AST source loc unit tests ----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains tests for SourceLocation and SourceRange fields
// in AST nodes.
//
// FIXME: In the long-term, when we test more than source locations, we may
// want to have a unit test file for an AST node (or group of related nodes),
// rather than a unit test file for source locations for all AST nodes.
//
//===----------------------------------------------------------------------===//
#include "MatchVerifier.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/Testing/Support/Annotations.h"
#include "gtest/gtest.h"
using namespace clang;
using namespace clang::ast_matchers;
namespace {
// FIXME: Pull the *Verifier tests into their own test file.
TEST(MatchVerifier, ParseError) {
LocationVerifier<VarDecl> Verifier;
Verifier.expectLocation(1, 1);
EXPECT_FALSE(Verifier.match("int i", varDecl()));
}
TEST(MatchVerifier, NoMatch) {
LocationVerifier<VarDecl> Verifier;
Verifier.expectLocation(1, 1);
EXPECT_FALSE(Verifier.match("int i;", recordDecl()));
}
TEST(MatchVerifier, WrongType) {
LocationVerifier<RecordDecl> Verifier;
Verifier.expectLocation(1, 1);
EXPECT_FALSE(Verifier.match("int i;", varDecl()));
}
TEST(LocationVerifier, WrongLocation) {
LocationVerifier<VarDecl> Verifier;
Verifier.expectLocation(1, 1);
EXPECT_FALSE(Verifier.match("int i;", varDecl()));
}
TEST(RangeVerifier, WrongRange) {
RangeVerifier<VarDecl> Verifier;
Verifier.expectRange(1, 1, 1, 1);
EXPECT_FALSE(Verifier.match("int i;", varDecl()));
}
class WhileParenLocationVerifier : public MatchVerifier<WhileStmt> {
unsigned ExpectLParenLine = 0, ExpectLParenColumn = 0;
unsigned ExpectRParenLine = 0, ExpectRParenColumn = 0;
public:
void expectLocations(unsigned LParenLine, unsigned LParenColumn,
unsigned RParenLine, unsigned RParenColumn) {
ExpectLParenLine = LParenLine;
ExpectLParenColumn = LParenColumn;
ExpectRParenLine = RParenLine;
ExpectRParenColumn = RParenColumn;
}
protected:
void verify(const MatchFinder::MatchResult &Result,
const WhileStmt &Node) override {
SourceLocation LParenLoc = Node.getLParenLoc();
SourceLocation RParenLoc = Node.getRParenLoc();
unsigned LParenLine =
Result.SourceManager->getSpellingLineNumber(LParenLoc);
unsigned LParenColumn =
Result.SourceManager->getSpellingColumnNumber(LParenLoc);
unsigned RParenLine =
Result.SourceManager->getSpellingLineNumber(RParenLoc);
unsigned RParenColumn =
Result.SourceManager->getSpellingColumnNumber(RParenLoc);
if (LParenLine != ExpectLParenLine || LParenColumn != ExpectLParenColumn ||
RParenLine != ExpectRParenLine || RParenColumn != ExpectRParenColumn) {
std::string MsgStr;
llvm::raw_string_ostream Msg(MsgStr);
Msg << "Expected LParen Location <" << ExpectLParenLine << ":"
<< ExpectLParenColumn << ">, found <";
LParenLoc.print(Msg, *Result.SourceManager);
Msg << ">\n";
Msg << "Expected RParen Location <" << ExpectRParenLine << ":"
<< ExpectRParenColumn << ">, found <";
RParenLoc.print(Msg, *Result.SourceManager);
Msg << ">";
this->setFailure(Msg.str());
}
}
};
TEST(LocationVerifier, WhileParenLoc) {
WhileParenLocationVerifier Verifier;
Verifier.expectLocations(1, 17, 1, 38);
EXPECT_TRUE(Verifier.match("void f() { while(true/*some comment*/) {} }",
whileStmt()));
}
class LabelDeclRangeVerifier : public RangeVerifier<LabelStmt> {
protected:
SourceRange getRange(const LabelStmt &Node) override {
return Node.getDecl()->getSourceRange();
}
};
TEST(LabelDecl, Range) {
LabelDeclRangeVerifier Verifier;
Verifier.expectRange(1, 12, 1, 12);
EXPECT_TRUE(Verifier.match("void f() { l: return; }", labelStmt()));
}
TEST(LabelStmt, Range) {
RangeVerifier<LabelStmt> Verifier;
Verifier.expectRange(1, 12, 1, 15);
EXPECT_TRUE(Verifier.match("void f() { l: return; }", labelStmt()));
}
TEST(ParmVarDecl, KNRLocation) {
LocationVerifier<ParmVarDecl> Verifier;
Verifier.expectLocation(1, 8);
EXPECT_TRUE(Verifier.match("void f(i) {}", varDecl(), Lang_C89));
Verifier.expectLocation(1, 15);
EXPECT_TRUE(Verifier.match("void f(i) int i; {}", varDecl(), Lang_C99));
}
TEST(ParmVarDecl, KNRRange) {
RangeVerifier<ParmVarDecl> Verifier;
Verifier.expectRange(1, 8, 1, 8);
EXPECT_TRUE(Verifier.match("void f(i) {}", varDecl(), Lang_C89));
Verifier.expectRange(1, 11, 1, 15);
EXPECT_TRUE(Verifier.match("void f(i) int i; {}", varDecl(), Lang_C99));
}
TEST(CXXNewExpr, ArrayRange) {
RangeVerifier<CXXNewExpr> Verifier;
Verifier.expectRange(1, 12, 1, 22);
EXPECT_TRUE(Verifier.match("void f() { new int[10]; }", cxxNewExpr()));
}
TEST(CXXNewExpr, ParenRange) {
RangeVerifier<CXXNewExpr> Verifier;
Verifier.expectRange(1, 12, 1, 20);
EXPECT_TRUE(Verifier.match("void f() { new int(); }", cxxNewExpr()));
}
TEST(MemberExpr, ImplicitMemberRange) {
RangeVerifier<MemberExpr> Verifier;
Verifier.expectRange(2, 30, 2, 30);
EXPECT_TRUE(Verifier.match("struct S { operator int() const; };\n"
"int foo(const S& s) { return s; }",
memberExpr()));
}
class MemberExprArrowLocVerifier : public RangeVerifier<MemberExpr> {
protected:
SourceRange getRange(const MemberExpr &Node) override {
return Node.getOperatorLoc();
}
};
TEST(MemberExpr, ArrowRange) {
MemberExprArrowLocVerifier Verifier;
Verifier.expectRange(2, 19, 2, 19);
EXPECT_TRUE(Verifier.match("struct S { int x; };\n"
"void foo(S *s) { s->x = 0; }",
memberExpr()));
}
TEST(MemberExpr, MacroArrowRange) {
MemberExprArrowLocVerifier Verifier;
Verifier.expectRange(1, 24, 1, 24);
EXPECT_TRUE(Verifier.match("#define MEMBER(a, b) (a->b)\n"
"struct S { int x; };\n"
"void foo(S *s) { MEMBER(s, x) = 0; }",
memberExpr()));
}
TEST(MemberExpr, ImplicitArrowRange) {
MemberExprArrowLocVerifier Verifier;
Verifier.expectRange(0, 0, 0, 0);
EXPECT_TRUE(Verifier.match("struct S { int x; void Test(); };\n"
"void S::Test() { x = 1; }",
memberExpr()));
}
TEST(VarDecl, VMTypeFixedVarDeclRange) {
RangeVerifier<VarDecl> Verifier;
Verifier.expectRange(1, 1, 1, 23);
EXPECT_TRUE(Verifier.match("int a[(int)(void*)1234];",
varDecl(), Lang_C89));
}
TEST(TypeLoc, IntRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 1);
EXPECT_TRUE(Verifier.match("int a;", typeLoc()));
}
TEST(TypeLoc, LongRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 1);
EXPECT_TRUE(Verifier.match("long a;", typeLoc()));
}
TEST(TypeLoc, DecltypeTypeLocRange) {
llvm::Annotations Code(R"(
$full1[[decltype(1)]] a;
struct A {struct B{};} var;
$full2[[decltype(var)]]::B c;
)");
auto AST = tooling::buildASTFromCodeWithArgs(Code.code(), /*Args=*/{});
ASTContext &Ctx = AST->getASTContext();
const auto &SM = Ctx.getSourceManager();
auto MatchedLocs = clang::ast_matchers::match(
typeLoc(loc(decltypeType())).bind("target"), Ctx);
ASSERT_EQ(MatchedLocs.size(), 2u);
auto verify = [&](SourceRange ActualRange,
const llvm::Annotations::Range &Expected) {
auto ActualCharRange =
Lexer::getAsCharRange(ActualRange, SM, Ctx.getLangOpts());
EXPECT_EQ(SM.getFileOffset(ActualCharRange.getBegin()), Expected.Begin);
EXPECT_EQ(SM.getFileOffset(ActualCharRange.getEnd()), Expected.End);
};
const auto *Target1 = MatchedLocs[0].getNodeAs<DecltypeTypeLoc>("target");
verify(Target1->getSourceRange(), Code.range("full1"));
const auto *Target2 = MatchedLocs[1].getNodeAs<DecltypeTypeLoc>("target");
verify(Target2->getSourceRange(), Code.range("full2"));
}
TEST(TypeLoc, AutoTypeLocRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 14);
EXPECT_TRUE(Verifier.match("decltype(auto) a = 1;", typeLoc(loc(autoType())),
Lang_CXX14));
const char *Code =
R"cpp(template <typename T> concept C = true;
C auto abc();
)cpp";
// Should include "C auto" tokens.
Verifier.expectRange(2, 1, 2, 3); // token range.
EXPECT_TRUE(Verifier.match(Code, typeLoc(loc(autoType())), Lang_CXX20));
}
TEST(TypeLoc, LongDoubleRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 6);
EXPECT_TRUE(Verifier.match("long double a;", typeLoc()));
}
TEST(TypeLoc, DoubleLongRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 8);
EXPECT_TRUE(Verifier.match("double long a;", typeLoc()));
}
TEST(TypeLoc, LongIntRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 6);
EXPECT_TRUE(Verifier.match("long int a;", typeLoc()));
}
TEST(TypeLoc, IntLongRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 5);
EXPECT_TRUE(Verifier.match("int long a;", typeLoc()));
}
TEST(TypeLoc, UnsignedIntRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 10);
EXPECT_TRUE(Verifier.match("unsigned int a;", typeLoc()));
}
TEST(TypeLoc, IntUnsignedRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 5);
EXPECT_TRUE(Verifier.match("int unsigned a;", typeLoc()));
}
TEST(TypeLoc, LongLongRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 6);
EXPECT_TRUE(Verifier.match("long long a;", typeLoc()));
}
TEST(TypeLoc, UnsignedLongLongRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 15);
EXPECT_TRUE(Verifier.match("unsigned long long a;", typeLoc()));
}
TEST(TypeLoc, LongUnsignedLongRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 15);
EXPECT_TRUE(Verifier.match("long unsigned long a;", typeLoc()));
}
TEST(TypeLoc, LongLongUnsignedRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 11);
EXPECT_TRUE(Verifier.match("long long unsigned a;", typeLoc()));
}
TEST(TypeLoc, ConstLongLongRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 7, 1, 12);
EXPECT_TRUE(Verifier.match("const long long a = 0;", typeLoc()));
}
TEST(TypeLoc, LongConstLongRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 12);
EXPECT_TRUE(Verifier.match("long const long a = 0;", typeLoc()));
}
TEST(TypeLoc, LongLongConstRange) {
RangeVerifier<TypeLoc> Verifier;
Verifier.expectRange(1, 1, 1, 6);
EXPECT_TRUE(Verifier.match("long long const a = 0;", typeLoc()));
}
TEST(CXXConstructorDecl, NoRetFunTypeLocRange) {
RangeVerifier<CXXConstructorDecl> Verifier;
Verifier.expectRange(1, 11, 1, 13);
EXPECT_TRUE(Verifier.match("class C { C(); };", functionDecl()));
}
TEST(CXXConstructorDecl, DefaultedCtorLocRange) {
RangeVerifier<CXXConstructorDecl> Verifier;
Verifier.expectRange(1, 11, 1, 23);
EXPECT_TRUE(Verifier.match("class C { C() = default; };", functionDecl()));
}
TEST(CXXConstructorDecl, DeletedCtorLocRange) {
RangeVerifier<CXXConstructorDecl> Verifier;
Verifier.expectRange(1, 11, 1, 22);
EXPECT_TRUE(Verifier.match("class C { C() = delete; };", functionDecl()));
}
TEST(CompoundLiteralExpr, CompoundVectorLiteralRange) {
RangeVerifier<CompoundLiteralExpr> Verifier;
Verifier.expectRange(2, 11, 2, 22);
EXPECT_TRUE(Verifier.match(
"typedef int int2 __attribute__((ext_vector_type(2)));\n"
"int2 i2 = (int2){1, 2};", compoundLiteralExpr()));
}
TEST(CompoundLiteralExpr, ParensCompoundVectorLiteralRange) {
RangeVerifier<CompoundLiteralExpr> Verifier;
Verifier.expectRange(2, 20, 2, 31);
EXPECT_TRUE(Verifier.match(
"typedef int int2 __attribute__((ext_vector_type(2)));\n"
"constant int2 i2 = (int2)(1, 2);",
compoundLiteralExpr(), Lang_OpenCL));
}
TEST(InitListExpr, VectorLiteralListBraceRange) {
RangeVerifier<InitListExpr> Verifier;
Verifier.expectRange(2, 17, 2, 22);
EXPECT_TRUE(Verifier.match(
"typedef int int2 __attribute__((ext_vector_type(2)));\n"
"int2 i2 = (int2){1, 2};", initListExpr()));
}
TEST(InitListExpr, VectorLiteralInitListParens) {
RangeVerifier<InitListExpr> Verifier;
Verifier.expectRange(2, 26, 2, 31);
EXPECT_TRUE(Verifier.match(
"typedef int int2 __attribute__((ext_vector_type(2)));\n"
"constant int2 i2 = (int2)(1, 2);", initListExpr(), Lang_OpenCL));
}
class TemplateAngleBracketLocRangeVerifier : public RangeVerifier<TypeLoc> {
protected:
SourceRange getRange(const TypeLoc &Node) override {
TemplateSpecializationTypeLoc T =
Node.getUnqualifiedLoc().castAs<TemplateSpecializationTypeLoc>();
assert(!T.isNull());
return SourceRange(T.getLAngleLoc(), T.getRAngleLoc());
}
};
TEST(TemplateSpecializationTypeLoc, AngleBracketLocations) {
TemplateAngleBracketLocRangeVerifier Verifier;
Verifier.expectRange(2, 8, 2, 10);
EXPECT_TRUE(Verifier.match(
"template<typename T> struct A {}; struct B{}; void f(\n"
"const A<B>&);",
loc(templateSpecializationType())));
}
TEST(CXXNewExpr, TypeParenRange) {
RangeVerifier<CXXNewExpr> Verifier;
Verifier.expectRange(1, 10, 1, 18);
EXPECT_TRUE(Verifier.match("int* a = new (int);", cxxNewExpr()));
}
class UnaryTransformTypeLocParensRangeVerifier : public RangeVerifier<TypeLoc> {
protected:
SourceRange getRange(const TypeLoc &Node) override {
UnaryTransformTypeLoc T =
Node.getUnqualifiedLoc().castAs<UnaryTransformTypeLoc>();
assert(!T.isNull());
return SourceRange(T.getLParenLoc(), T.getRParenLoc());
}
};
TEST(UnaryTransformTypeLoc, ParensRange) {
UnaryTransformTypeLocParensRangeVerifier Verifier;
Verifier.expectRange(3, 26, 3, 28);
EXPECT_TRUE(Verifier.match(
"template <typename T>\n"
"struct S {\n"
"typedef __underlying_type(T) type;\n"
"};",
loc(unaryTransformType())));
}
TEST(CXXFunctionalCastExpr, SourceRange) {
RangeVerifier<CXXFunctionalCastExpr> Verifier;
Verifier.expectRange(2, 10, 2, 14);
EXPECT_TRUE(Verifier.match(
"int foo() {\n"
" return int{};\n"
"}",
cxxFunctionalCastExpr(), Lang_CXX11));
}
TEST(CXXConstructExpr, SourceRange) {
RangeVerifier<CXXConstructExpr> Verifier;
Verifier.expectRange(3, 14, 3, 19);
EXPECT_TRUE(Verifier.match(
"struct A { A(int, int); };\n"
"void f(A a);\n"
"void g() { f({0, 0}); }",
cxxConstructExpr(), Lang_CXX11));
}
TEST(CXXTemporaryObjectExpr, SourceRange) {
RangeVerifier<CXXTemporaryObjectExpr> Verifier;
Verifier.expectRange(2, 6, 2, 12);
EXPECT_TRUE(Verifier.match(
"struct A { A(int, int); };\n"
"A a( A{0, 0} );",
cxxTemporaryObjectExpr(), Lang_CXX11));
}
TEST(CXXUnresolvedConstructExpr, SourceRange) {
RangeVerifier<CXXUnresolvedConstructExpr> Verifier;
Verifier.expectRange(3, 10, 3, 12);
std::vector<std::string> Args;
Args.push_back("-fno-delayed-template-parsing");
EXPECT_TRUE(Verifier.match(
"template <typename U>\n"
"U foo() {\n"
" return U{};\n"
"}",
cxxUnresolvedConstructExpr(), Args, Lang_CXX11));
}
TEST(UsingDecl, SourceRange) {
RangeVerifier<UsingDecl> Verifier;
Verifier.expectRange(2, 22, 2, 25);
EXPECT_TRUE(Verifier.match(
"class B { protected: int i; };\n"
"class D : public B { B::i; };",
usingDecl()));
}
TEST(UnresolvedUsingValueDecl, SourceRange) {
RangeVerifier<UnresolvedUsingValueDecl> Verifier;
Verifier.expectRange(3, 3, 3, 6);
EXPECT_TRUE(Verifier.match(
"template <typename B>\n"
"class D : public B {\n"
" B::i;\n"
"};",
unresolvedUsingValueDecl()));
}
TEST(FriendDecl, FriendNonMemberFunctionLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(2, 13);
EXPECT_TRUE(Verifier.match("struct A {\n"
"friend void f();\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendNonMemberFunctionRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(2, 1, 2, 15);
EXPECT_TRUE(Verifier.match("struct A {\n"
"friend void f();\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendNonMemberFunctionDefinitionLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(2, 12);
EXPECT_TRUE(Verifier.match("struct A {\n"
"friend int f() { return 0; }\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendNonMemberFunctionDefinitionRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(2, 1, 2, 28);
EXPECT_TRUE(Verifier.match("struct A {\n"
"friend int f() { return 0; }\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendElaboratedTypeLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(2, 8);
EXPECT_TRUE(Verifier.match("struct A {\n"
"friend class B;\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendElaboratedTypeRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(2, 1, 2, 14);
EXPECT_TRUE(Verifier.match("struct A {\n"
"friend class B;\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendSimpleTypeLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(3, 8);
EXPECT_TRUE(Verifier.match("class B;\n"
"struct A {\n"
"friend B;\n"
"};\n",
friendDecl(), Lang_CXX11));
}
TEST(FriendDecl, FriendSimpleTypeRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(3, 1, 3, 8);
EXPECT_TRUE(Verifier.match("class B;\n"
"struct A {\n"
"friend B;\n"
"};\n",
friendDecl(), Lang_CXX11));
}
TEST(FriendDecl, FriendTemplateParameterLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(3, 8);
EXPECT_TRUE(Verifier.match("template <typename T>\n"
"struct A {\n"
"friend T;\n"
"};\n",
friendDecl(), Lang_CXX11));
}
TEST(FriendDecl, FriendTemplateParameterRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(3, 1, 3, 8);
EXPECT_TRUE(Verifier.match("template <typename T>\n"
"struct A {\n"
"friend T;\n"
"};\n",
friendDecl(), Lang_CXX11));
}
TEST(FriendDecl, FriendDecltypeLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(4, 8);
EXPECT_TRUE(Verifier.match("struct A;\n"
"A foo();\n"
"struct A {\n"
"friend decltype(foo());\n"
"};\n",
friendDecl(), Lang_CXX11));
}
TEST(FriendDecl, FriendDecltypeRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(4, 1, 4, 22);
EXPECT_TRUE(Verifier.match("struct A;\n"
"A foo();\n"
"struct A {\n"
"friend decltype(foo());\n"
"};\n",
friendDecl(), Lang_CXX11));
}
TEST(FriendDecl, FriendConstructorDestructorLocation) {
const std::string Code = "struct B {\n"
"B();\n"
"~B();\n"
"};\n"
"struct A {\n"
"friend B::B(), B::~B();\n"
"};\n";
LocationVerifier<FriendDecl> ConstructorVerifier;
ConstructorVerifier.expectLocation(6, 11);
EXPECT_TRUE(ConstructorVerifier.match(
Code, friendDecl(has(cxxConstructorDecl(ofClass(hasName("B")))))));
LocationVerifier<FriendDecl> DestructorVerifier;
DestructorVerifier.expectLocation(6, 19);
EXPECT_TRUE(DestructorVerifier.match(
Code, friendDecl(has(cxxDestructorDecl(ofClass(hasName("B")))))));
}
TEST(FriendDecl, FriendConstructorDestructorRange) {
const std::string Code = "struct B {\n"
"B();\n"
"~B();\n"
"};\n"
"struct A {\n"
"friend B::B(), B::~B();\n"
"};\n";
RangeVerifier<FriendDecl> ConstructorVerifier;
ConstructorVerifier.expectRange(6, 1, 6, 13);
EXPECT_TRUE(ConstructorVerifier.match(
Code, friendDecl(has(cxxConstructorDecl(ofClass(hasName("B")))))));
RangeVerifier<FriendDecl> DestructorVerifier;
DestructorVerifier.expectRange(6, 1, 6, 22);
EXPECT_TRUE(DestructorVerifier.match(
Code, friendDecl(has(cxxDestructorDecl(ofClass(hasName("B")))))));
}
TEST(FriendDecl, FriendTemplateFunctionLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(3, 13);
EXPECT_TRUE(Verifier.match("struct A {\n"
"template <typename T>\n"
"friend void f();\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendTemplateFunctionRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(2, 1, 3, 15);
EXPECT_TRUE(Verifier.match("struct A {\n"
"template <typename T>\n"
"friend void f();\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendTemplateClassLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(3, 14);
EXPECT_TRUE(Verifier.match("struct A {\n"
"template <typename T>\n"
"friend class B;\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendTemplateClassRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(2, 1, 3, 14);
EXPECT_TRUE(Verifier.match("struct A {\n"
"template <typename T>\n"
"friend class B;\n"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendInlineFunctionLocation) {
LocationVerifier<FriendDecl> Verifier;
Verifier.expectLocation(2, 19);
EXPECT_TRUE(Verifier.match("struct A {\n"
"int inline friend f() { return 0; }"
"};\n",
friendDecl()));
}
TEST(FriendDecl, FriendInlineFunctionRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(2, 1, 2, 35);
EXPECT_TRUE(Verifier.match("struct A {\n"
"int inline friend f() { return 0; }"
"};\n",
friendDecl(), Lang_CXX11));
}
TEST(FriendDecl, InstantiationSourceRange) {
RangeVerifier<FriendDecl> Verifier;
Verifier.expectRange(4, 3, 4, 35);
EXPECT_TRUE(Verifier.match(
"template <typename T> class S;\n"
"template<class T> void operator+(S<T> x);\n"
"template<class T> struct S {\n"
" friend void operator+<>(S<T> src);\n"
"};\n"
"void test(S<double> s) { +s; }",
friendDecl(hasParent(cxxRecordDecl(isTemplateInstantiation())))));
}
TEST(ObjCMessageExpr, ParenExprRange) {
RangeVerifier<ParenExpr> Verifier;
Verifier.expectRange(5, 25, 5, 27);
EXPECT_TRUE(Verifier.match("struct A { int a; };\n"
"@interface B {}\n"
"+ (void) f1: (A)arg;\n"
"@end\n"
"void f2() { A a; [B f1: (a)]; }\n",
traverse(TK_AsIs, parenExpr()), Lang_OBJCXX));
}
TEST(FunctionDecl, FunctionDeclWithThrowSpecification) {
RangeVerifier<FunctionDecl> Verifier;
Verifier.expectRange(1, 1, 1, 16);
EXPECT_TRUE(Verifier.match(
"void f() throw();\n",
functionDecl()));
}
TEST(FunctionDecl, FunctionDeclWithNoExceptSpecification) {
RangeVerifier<FunctionDecl> Verifier;
Verifier.expectRange(1, 1, 1, 24);
EXPECT_TRUE(Verifier.match("void f() noexcept(false);\n", functionDecl(),
Lang_CXX11));
}
class FunctionDeclParametersRangeVerifier : public RangeVerifier<FunctionDecl> {
protected:
SourceRange getRange(const FunctionDecl &Function) override {
return Function.getParametersSourceRange();
}
};
TEST(FunctionDeclParameters, FunctionDeclOnlyVariadic) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 8);
EXPECT_TRUE(Verifier.match("void f(...);\n", functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclVariadic) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 15);
EXPECT_TRUE(Verifier.match("void f(int a, ...);\n", functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclMacroVariadic) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(2, 8, 1, 18);
EXPECT_TRUE(Verifier.match("#define VARIADIC ...\n"
"void f(int a, VARIADIC);\n",
functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclMacroParams) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 16, 2, 20);
EXPECT_TRUE(Verifier.match("#define PARAMS int a, int b\n"
"void f(PARAMS, int c);",
functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclSingleParameter) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 12);
EXPECT_TRUE(Verifier.match("void f(int a);\n", functionDecl()));
}
TEST(FunctionDeclParameters, MemberFunctionDecl) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(2, 8, 2, 12);
EXPECT_TRUE(Verifier.match("class A{\n"
"void f(int a);\n"
"};",
functionDecl()));
}
TEST(FunctionDeclParameters, MemberFunctionDeclVariadic) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(2, 8, 2, 15);
EXPECT_TRUE(Verifier.match("class A{\n"
"void f(int a, ...);\n"
"};",
functionDecl()));
}
TEST(FunctionDeclParameters, StaticFunctionDecl) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(2, 15, 2, 19);
EXPECT_TRUE(Verifier.match("class A{\n"
"static void f(int a);\n"
"};",
functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclMultipleParameters) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 28);
EXPECT_TRUE(
Verifier.match("void f(int a, int b, char *c);\n", functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclWithDefaultValue) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 16);
EXPECT_TRUE(Verifier.match("void f(int a = 5);\n", functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclWithVolatile) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 22);
EXPECT_TRUE(Verifier.match("void f(volatile int *i);", functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclWithConstParam) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 19);
EXPECT_TRUE(Verifier.match("void f(const int *i);", functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclWithConstVolatileParam) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 28);
EXPECT_TRUE(Verifier.match("void f(const volatile int *i);", functionDecl()));
}
TEST(FunctionDeclParameters, FunctionDeclWithParamAttribute) {
FunctionDeclParametersRangeVerifier Verifier;
Verifier.expectRange(1, 8, 1, 36);
EXPECT_TRUE(Verifier.match("void f(__attribute__((unused)) int a) {}",
functionDecl()));
}
TEST(CXXMethodDecl, CXXMethodDeclWithThrowSpecification) {
RangeVerifier<FunctionDecl> Verifier;
Verifier.expectRange(2, 1, 2, 16);
EXPECT_TRUE(Verifier.match(
"class A {\n"
"void f() throw();\n"
"};\n",
functionDecl()));
}
TEST(CXXMethodDecl, CXXMethodDeclWithNoExceptSpecification) {
RangeVerifier<FunctionDecl> Verifier;
Verifier.expectRange(2, 1, 2, 24);
EXPECT_TRUE(Verifier.match("class A {\n"
"void f() noexcept(false);\n"
"};\n",
functionDecl(), Lang_CXX11));
}
class ExceptionSpecRangeVerifier : public RangeVerifier<TypeLoc> {
protected:
SourceRange getRange(const TypeLoc &Node) override {
auto T =
Node.getUnqualifiedLoc().castAs<FunctionProtoTypeLoc>();
assert(!T.isNull());
return T.getExceptionSpecRange();
}
};
class ParmVarExceptionSpecRangeVerifier : public RangeVerifier<ParmVarDecl> {
protected:
SourceRange getRange(const ParmVarDecl &Node) override {
if (const TypeSourceInfo *TSI = Node.getTypeSourceInfo()) {
TypeLoc TL = TSI->getTypeLoc();
if (TL.getType()->isPointerType()) {
TL = TL.getNextTypeLoc().IgnoreParens();
if (auto FPTL = TL.getAs<FunctionProtoTypeLoc>()) {
return FPTL.getExceptionSpecRange();
}
}
}
return SourceRange();
}
};
TEST(FunctionDecl, ExceptionSpecifications) {
ExceptionSpecRangeVerifier Verifier;
Verifier.expectRange(1, 10, 1, 16);
EXPECT_TRUE(Verifier.match("void f() throw();\n", loc(functionType())));
Verifier.expectRange(1, 10, 1, 34);
EXPECT_TRUE(Verifier.match("void f() throw(void(void) throw());\n",
loc(functionType())));
Verifier.expectRange(1, 10, 1, 19);
std::vector<std::string> Args;
Args.push_back("-fms-extensions");
EXPECT_TRUE(Verifier.match("void f() throw(...);\n", loc(functionType()),
Args, Lang_CXX03));
Verifier.expectRange(1, 10, 1, 10);
EXPECT_TRUE(
Verifier.match("void f() noexcept;\n", loc(functionType()), Lang_CXX11));
Verifier.expectRange(1, 10, 1, 24);
EXPECT_TRUE(Verifier.match("void f() noexcept(false);\n", loc(functionType()),
Lang_CXX11));
Verifier.expectRange(1, 10, 1, 32);
EXPECT_TRUE(Verifier.match("void f() noexcept(noexcept(1+1));\n",
loc(functionType()), Lang_CXX11));
ParmVarExceptionSpecRangeVerifier Verifier2;
Verifier2.expectRange(1, 25, 1, 31);
EXPECT_TRUE(Verifier2.match("void g(void (*fp)(void) throw());\n",
parmVarDecl(hasType(pointerType(pointee(
parenType(innerType(functionType()))))))));
Verifier2.expectRange(1, 25, 1, 38);
EXPECT_TRUE(Verifier2.match("void g(void (*fp)(void) noexcept(true));\n",
parmVarDecl(hasType(pointerType(pointee(
parenType(innerType(functionType())))))),
Lang_CXX11));
}
TEST(Decl, MemberPointerStarLoc) {
llvm::Annotations Example(R"cpp(
struct X {};
int X::$star^* a;
)cpp");
auto AST = tooling::buildASTFromCode(Example.code());
SourceManager &SM = AST->getSourceManager();
auto &Ctx = AST->getASTContext();
auto *VD = selectFirst<VarDecl>("vd", match(varDecl().bind("vd"), Ctx));
ASSERT_TRUE(VD != nullptr);
auto TL =
VD->getTypeSourceInfo()->getTypeLoc().castAs<MemberPointerTypeLoc>();
ASSERT_EQ(SM.getFileOffset(TL.getStarLoc()), Example.point("star"));
}
} // end namespace
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