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llvm-project/clang/unittests/AST/SourceLocationTest.cpp
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo 
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

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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 "clang/AST/ASTContext.h"
#include "MatchVerifier.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
namespace clang {
namespace ast_matchers {
// 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 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_C));
}
TEST(ParmVarDecl, KNRRange) {
RangeVerifier<ParmVarDecl> Verifier;
Verifier.expectRange(1, 8, 1, 8);
EXPECT_TRUE(Verifier.match("void f(i) {}", varDecl(), Lang_C));
}
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, 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, 8);
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, CXXConstructExprRange) {
RangeVerifier<CXXConstructExpr> 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",
cxxConstructExpr(), 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(),
Language::Lang_CXX11));
}
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(),
Language::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, Language::Lang_CXX));
Verifier.expectRange(1, 10, 1, 10);
EXPECT_TRUE(Verifier.match("void f() noexcept;\n", loc(functionType()),
Language::Lang_CXX11));
Verifier.expectRange(1, 10, 1, 24);
EXPECT_TRUE(Verifier.match("void f() noexcept(false);\n", loc(functionType()),
Language::Lang_CXX11));
Verifier.expectRange(1, 10, 1, 32);
EXPECT_TRUE(Verifier.match("void f() noexcept(noexcept(1+1));\n",
loc(functionType()), Language::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())))))),
Language::Lang_CXX11));
}
} // end namespace ast_matchers
} // end namespace clang
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