mizvekov updated this revision to Diff 374921.
mizvekov added a comment.
update print-type.cpp test.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D110216/new/
https://reviews.llvm.org/D110216
Files:
clang-tools-extra/clang-tidy/cppcoreguidelines/OwningMemoryCheck.cpp
clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp
clang-tools-extra/clang-tidy/readability/QualifiedAutoCheck.cpp
clang-tools-extra/clangd/FindTarget.cpp
clang-tools-extra/clangd/unittests/ASTTests.cpp
clang-tools-extra/clangd/unittests/HoverTests.cpp
clang-tools-extra/clangd/unittests/InlayHintTests.cpp
clang-tools-extra/clangd/unittests/tweaks/ExpandAutoTypeTests.cpp
clang-tools-extra/test/clang-tidy/checkers/cert-static-object-exception.cpp
clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-owning-memory.cpp
clang/include/clang/AST/ASTContext.h
clang/include/clang/AST/Type.h
clang/include/clang/Sema/Sema.h
clang/lib/AST/ASTContext.cpp
clang/lib/AST/ASTImporter.cpp
clang/lib/AST/Type.cpp
clang/lib/Sema/SemaCXXScopeSpec.cpp
clang/lib/Sema/SemaDecl.cpp
clang/lib/Sema/SemaDeclCXX.cpp
clang/lib/Sema/SemaExprCXX.cpp
clang/lib/Sema/SemaInit.cpp
clang/lib/Sema/SemaLambda.cpp
clang/lib/Sema/SemaStmt.cpp
clang/lib/Sema/SemaTemplate.cpp
clang/lib/Sema/SemaTemplateDeduction.cpp
clang/lib/Sema/SemaType.cpp
clang/lib/Sema/TreeTransform.h
clang/test/CXX/over/over.match/over.match.funcs/over.match.class.deduct/p2.cpp
clang/test/CXX/stmt.stmt/stmt.iter/stmt.ranged/p1.cpp
clang/test/CXX/temp/temp.decls/temp.variadic/multi-level-substitution.cpp
clang/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p1-0x.cpp
clang/test/Index/print-type.cpp
clang/test/SemaCXX/cxx1z-class-template-argument-deduction.cpp
clang/test/SemaCXX/cxx1z-decomposition.cpp
clang/test/SemaCXX/deduced-return-type-cxx14.cpp
clang/test/SemaCXX/friend.cpp
clang/test/SemaCXX/recovery-expr-type.cpp
clang/test/SemaCXX/sizeless-1.cpp
clang/test/SemaCXX/sugared-auto.cpp
clang/test/SemaTemplate/attributes.cpp
clang/test/SemaTemplate/friend.cpp
clang/test/SemaTemplate/operator-template.cpp
clang/unittests/AST/ASTImporterTest.cpp
Index: clang/unittests/AST/ASTImporterTest.cpp
===================================================================
--- clang/unittests/AST/ASTImporterTest.cpp
+++ clang/unittests/AST/ASTImporterTest.cpp
@@ -6176,26 +6176,9 @@
FirstDeclMatcher<FunctionDecl>().match(FromTU, functionDecl());
FunctionDecl *To = Import(From, Lang_CXX14);
- EXPECT_TRUE(To);
- EXPECT_TRUE(isa<AutoType>(To->getReturnType()));
-}
-
-TEST_P(ImportAutoFunctions, ReturnWithStructDeclaredInside2) {
- Decl *FromTU = getTuDecl(
- R"(
- auto foo() {
- struct X {};
- return X();
- }
- )",
- Lang_CXX14, "input0.cc");
- FunctionDecl *From =
- FirstDeclMatcher<FunctionDecl>().match(FromTU, functionDecl());
-
- // This time import the type directly.
- QualType ToT = ImportType(From->getType(), From, Lang_CXX14);
- const FunctionProtoType *FPT = cast<FunctionProtoType>(ToT);
- EXPECT_TRUE(isa<AutoType>(FPT->getReturnType()));
+ // FIXME: We do not support importing these.
+ // EXPECT: error: cannot import unsupported AST node CXXRecord
+ EXPECT_FALSE(To);
}
TEST_P(ImportAutoFunctions, ReturnWithTypedefToStructDeclaredInside) {
@@ -6212,8 +6195,9 @@
FirstDeclMatcher<FunctionDecl>().match(FromTU, functionDecl());
FunctionDecl *To = Import(From, Lang_CXX14);
- EXPECT_TRUE(To);
- EXPECT_TRUE(isa<AutoType>(To->getReturnType()));
+ // FIXME: We do not support importing these.
+ // EXPECT: error: cannot import unsupported AST node CXXRecord
+ EXPECT_FALSE(To);
}
TEST_P(ImportAutoFunctions, ReturnWithStructDeclaredNestedInside) {
@@ -6229,8 +6213,9 @@
FirstDeclMatcher<FunctionDecl>().match(FromTU, functionDecl());
FunctionDecl *To = Import(From, Lang_CXX14);
- EXPECT_TRUE(To);
- EXPECT_TRUE(isa<AutoType>(To->getReturnType()));
+ // FIXME: We do not support importing these.
+ // EXPECT: error: cannot import unsupported AST node CXXRecord
+ EXPECT_FALSE(To);
}
TEST_P(ImportAutoFunctions, ReturnWithInternalLambdaType) {
@@ -6249,8 +6234,9 @@
FromTU, functionDecl(hasName("f")));
FunctionDecl *To = Import(From, Lang_CXX17);
- EXPECT_TRUE(To);
- EXPECT_TRUE(isa<AutoType>(To->getReturnType()));
+ // FIXME: We do not support importing these.
+ // EXPECT: error: cannot import unsupported AST node CXXRecord
+ EXPECT_FALSE(To);
}
TEST_P(ImportAutoFunctions, ReturnWithTypeInIf) {
@@ -6268,8 +6254,9 @@
FromTU, functionDecl(hasName("f")));
FunctionDecl *To = Import(From, Lang_CXX17);
- EXPECT_TRUE(To);
- EXPECT_TRUE(isa<AutoType>(To->getReturnType()));
+ // FIXME: We do not support importing these.
+ // EXPECT: error: cannot import unsupported AST node CXXRecord
+ EXPECT_FALSE(To);
}
TEST_P(ImportAutoFunctions, ReturnWithTypeInFor) {
@@ -6285,8 +6272,9 @@
FromTU, functionDecl(hasName("f")));
FunctionDecl *To = Import(From, Lang_CXX17);
- EXPECT_TRUE(To);
- EXPECT_TRUE(isa<AutoType>(To->getReturnType()));
+ // FIXME: We do not support importing these.
+ // EXPECT: error: cannot import unsupported AST node CXXRecord
+ EXPECT_FALSE(To);
}
TEST_P(ImportAutoFunctions, ReturnWithTypeInSwitch) {
@@ -6304,8 +6292,9 @@
FromTU, functionDecl(hasName("f")));
FunctionDecl *To = Import(From, Lang_CXX17);
- EXPECT_TRUE(To);
- EXPECT_TRUE(isa<AutoType>(To->getReturnType()));
+ // FIXME: We do not support importing these.
+ // EXPECT: error: cannot import unsupported AST node CXXRecord
+ EXPECT_FALSE(To);
}
struct ImportSourceLocations : ASTImporterOptionSpecificTestBase {};
Index: clang/test/SemaTemplate/operator-template.cpp
===================================================================
--- clang/test/SemaTemplate/operator-template.cpp
+++ clang/test/SemaTemplate/operator-template.cpp
@@ -2,7 +2,7 @@
// Make sure we accept this
template<class X>struct A{typedef X Y;};
-template<class X>bool operator==(A<X>,typename A<X>::Y); // expected-note{{candidate template ignored: could not match 'A<type-parameter-0-0>' against 'B<int> *'}}
+template<class X>bool operator==(A<X>,typename A<X>::Y); // expected-note{{candidate template ignored: could not match 'A<X>' against 'B<int> *'}}
int a(A<int> x) { return operator==(x,1); }
Index: clang/test/SemaTemplate/friend.cpp
===================================================================
--- clang/test/SemaTemplate/friend.cpp
+++ clang/test/SemaTemplate/friend.cpp
@@ -50,7 +50,7 @@
namespace qualified_friend {
void f(int); // expected-note 2{{type mismatch at 1st parameter}}
- template<typename T> void f(T*); // expected-note 2{{could not match 'type-parameter-0-0 *' against 'double'}}
+ template<typename T> void f(T*); // expected-note 2{{could not match 'T *' against 'double'}}
template<typename T> void nondep();
template<typename> struct X1 {
@@ -66,7 +66,7 @@
struct Y {
void f(int); // expected-note 2{{type mismatch at 1st parameter}}
- template<typename T> void f(T*); // expected-note 2{{could not match 'type-parameter-0-0 *' against 'double'}}
+ template<typename T> void f(T*); // expected-note 2{{could not match 'T *' against 'double'}}
template<typename T> void nondep();
};
Index: clang/test/SemaTemplate/attributes.cpp
===================================================================
--- clang/test/SemaTemplate/attributes.cpp
+++ clang/test/SemaTemplate/attributes.cpp
@@ -125,7 +125,7 @@
clang::preferred_name(const_iterator)]] Iter {};
};
auto it = MemberTemplate<int>::Iter<const int>();
- int n = it; // expected-error {{no viable conversion from 'preferred_name::MemberTemplate<int>::const_iterator' to 'int'}}
+ int n = it; // expected-error {{no viable conversion from 'MemberTemplate<int>::Iter<const int>' to 'int'}}
template<int A, int B, typename ...T> struct Foo;
template<typename ...T> using Bar = Foo<1, 2, T...>;
Index: clang/test/SemaCXX/sugared-auto.cpp
===================================================================
--- /dev/null
+++ clang/test/SemaCXX/sugared-auto.cpp
@@ -0,0 +1,31 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++14
+
+enum class N {};
+
+using T1 = int;
+auto x1 = T1();
+N t1 = x1;
+// expected-error@-1 {{cannot initialize a variable of type 'N' with an lvalue of type 'T1' (aka 'int')}}
+
+using T2 = T1 *;
+auto x2 = T2();
+N t2 = x2;
+// expected-error@-1 {{cannot initialize a variable of type 'N' with an lvalue of type 'T2' (aka 'int *')}}
+
+auto *x3 = T2();
+N t3 = x3;
+// expected-error@-1 {{cannot initialize a variable of type 'N' with an lvalue of type 'T1 *' (aka 'int *')}}
+
+auto f1() { return T1(); }
+auto x4 = f1();
+N t4 = x4;
+// expected-error@-1 {{cannot initialize a variable of type 'N' with an lvalue of type 'T1' (aka 'int')}}
+
+decltype(auto) f2() { return T1(); }
+auto x5 = f2();
+N t5 = x5;
+// expected-error@-1 {{cannot initialize a variable of type 'N' with an lvalue of type 'T1' (aka 'int')}}
+
+auto x6 = [a = T1()] { return a; }();
+N t6 = x6;
+// expected-error@-1 {{cannot initialize a variable of type 'N' with an lvalue of type 'T1' (aka 'int')}}
Index: clang/test/SemaCXX/sizeless-1.cpp
===================================================================
--- clang/test/SemaCXX/sizeless-1.cpp
+++ clang/test/SemaCXX/sizeless-1.cpp
@@ -581,7 +581,7 @@
auto auto_int8 = local_int8;
auto auto_int16 = local_int16;
#if __cplusplus >= 201703L
- auto [auto_int8_a] = local_int8; // expected-error {{cannot decompose non-class, non-array type '__SVInt8_t'}}
+ auto [auto_int8_a] = local_int8; // expected-error {{cannot decompose non-class, non-array type 'svint8_t' (aka '__SVInt8_t')}}
#endif
#endif
@@ -600,7 +600,7 @@
auto fn1 = [&local_int8](svint8_t x) { local_int8 = x; };
auto fn2 = [&local_int8](svint8_t *ptr) { *ptr = local_int8; };
#if __cplusplus >= 201703L
- auto fn3 = [a(return_int8())] {}; // expected-error {{field has sizeless type '__SVInt8_t'}}
+ auto fn3 = [a(return_int8())] {}; // expected-error {{field has sizeless type 'svint8_t' (aka '__SVInt8_t')}}
#endif
auto fn4 = [local_int8](svint8_t *ptr) { *ptr = local_int8; }; // expected-error {{by-copy capture of variable 'local_int8' with sizeless type 'svint8_t'}}
Index: clang/test/SemaCXX/recovery-expr-type.cpp
===================================================================
--- clang/test/SemaCXX/recovery-expr-type.cpp
+++ clang/test/SemaCXX/recovery-expr-type.cpp
@@ -133,7 +133,7 @@
template <typename T> S(T t) -> S<void *>;
void baz() {
- bar(S(123)); // expected-error {{no matching conversion for functional-style cast from 'int' to 'test11::S<>'}}
+ bar(S(123)); // expected-error {{no matching conversion for functional-style cast from 'int' to 'S<void *>'}}
}
} // namespace test11
Index: clang/test/SemaCXX/friend.cpp
===================================================================
--- clang/test/SemaCXX/friend.cpp
+++ clang/test/SemaCXX/friend.cpp
@@ -415,7 +415,7 @@
namespace qualified_friend_no_match {
void f(int); // expected-note {{type mismatch at 1st parameter}}
- template<typename T> void f(T*); // expected-note {{could not match 'type-parameter-0-0 *' against 'double'}}
+ template<typename T> void f(T*); // expected-note {{could not match 'T *' against 'double'}}
struct X {
friend void qualified_friend_no_match::f(double); // expected-error {{friend declaration of 'f' does not match any declaration in namespace 'qualified_friend_no_match'}}
friend void qualified_friend_no_match::g(); // expected-error {{friend declaration of 'g' does not match any declaration in namespace 'qualified_friend_no_match'}}
@@ -423,7 +423,7 @@
struct Y {
void f(int); // expected-note {{type mismatch at 1st parameter}}
- template<typename T> void f(T*); // expected-note {{could not match 'type-parameter-0-0 *' against 'double'}}
+ template<typename T> void f(T*); // expected-note {{could not match 'T *' against 'double'}}
};
struct Z {
friend void Y::f(double); // expected-error {{friend declaration of 'f' does not match any declaration in 'qualified_friend_no_match::Y'}}
Index: clang/test/SemaCXX/deduced-return-type-cxx14.cpp
===================================================================
--- clang/test/SemaCXX/deduced-return-type-cxx14.cpp
+++ clang/test/SemaCXX/deduced-return-type-cxx14.cpp
@@ -300,7 +300,7 @@
}
struct NonLiteral { ~NonLiteral(); } nl; // cxx14-note {{user-provided destructor}}
// cxx20_2b-note@-1 {{'NonLiteral' is not literal because its destructor is not constexpr}}
- constexpr auto f2(int n) { return nl; } // expected-error {{return type 'Constexpr::NonLiteral' is not a literal type}}
+ constexpr auto f2(int n) { return nl; } // expected-error {{return type 'struct NonLiteral' is not a literal type}}
}
// It's not really clear whether these are valid, but this matches g++.
Index: clang/test/SemaCXX/cxx1z-decomposition.cpp
===================================================================
--- clang/test/SemaCXX/cxx1z-decomposition.cpp
+++ clang/test/SemaCXX/cxx1z-decomposition.cpp
@@ -9,7 +9,7 @@
int a1[1], a2[2];
auto [] = a0; // expected-warning {{does not allow a decomposition group to be empty}}
- auto [v1] = a0; // expected-error {{type 'A0' decomposes into 0 elements, but 1 name was provided}}
+ auto [v1] = a0; // expected-error {{type 'struct A0' decomposes into 0 elements, but 1 name was provided}}
auto [] = a1; // expected-error {{type 'int [1]' decomposes into 1 element, but no names were provided}} expected-warning {{empty}}
auto [v2] = a1;
auto [v3, v4] = a1; // expected-error {{type 'int [1]' decomposes into 1 element, but 2 names were provided}}
@@ -70,7 +70,7 @@
void bitfield() {
struct { int a : 3, : 4, b : 5; } a;
auto &[x, y] = a;
- auto &[p, q, r] = a; // expected-error-re {{type '(unnamed struct at {{.*}})' decomposes into 2 elements, but 3 names were provided}}
+ auto &[p, q, r] = a; // expected-error-re {{type 'struct (unnamed struct at {{.*}})' decomposes into 2 elements, but 3 names were provided}}
}
void for_range() {
Index: clang/test/SemaCXX/cxx1z-class-template-argument-deduction.cpp
===================================================================
--- clang/test/SemaCXX/cxx1z-class-template-argument-deduction.cpp
+++ clang/test/SemaCXX/cxx1z-class-template-argument-deduction.cpp
@@ -555,6 +555,31 @@
void foo() {
insert(Foo(2, 2, 2)); // expected-error{{no viable constructor or deduction guide}}
}
+
+namespace function_prototypes {
+ template<class T> using fptr1 = void (*) (T);
+ template<class T> using fptr2 = fptr1<fptr1<T>>;
+
+ template<class T> void foo1(fptr1<const T *>) {}
+ void bar1(const char * __restrict);
+ void t1() { foo1(&bar1); }
+
+ template<class T> void foo2(fptr2<const T *>) {}
+ void bar2(fptr1<const char * __restrict>);
+ void t2() { foo2(&bar2); }
+
+ template<class T> void foo3(fptr1<const T *>) {}
+ void bar3(char * __restrict);
+ void t3() { foo3(&bar3); }
+ // expected-error@-1 {{no matching function for call to 'foo3'}}
+ // expected-note@-4 {{candidate template ignored: cannot deduce a type for 'T' that would make 'const T' equal 'char'}}
+
+ template<class T> void foo4(fptr2<const T *>) {}
+ void bar4(fptr1<char * __restrict>);
+ void t4() { foo4(&bar4); }
+ // expected-error@-1 {{no matching function for call to 'foo4'}}
+ // expected-note@-4 {{candidate template ignored: cannot deduce a type for 'T' that would make 'const T' equal 'char'}}
+}
#else
// expected-no-diagnostics
Index: clang/test/Index/print-type.cpp
===================================================================
--- clang/test/Index/print-type.cpp
+++ clang/test/Index/print-type.cpp
@@ -199,7 +199,7 @@
// CHECK: UnexposedExpr=templRefParam:71:40 [type=const Specialization<Specialization<bool> &>] [typekind=Record] const [templateargs/1= [type=Specialization<bool> &] [typekind=LValueReference]] [isPOD=1]
// CHECK: DeclRefExpr=templRefParam:71:40 [type=Specialization<Specialization<bool> &>] [typekind=Unexposed] [templateargs/1= [type=Specialization<bool> &] [typekind=LValueReference]] [canonicaltype=Specialization<Specialization<bool> &>] [canonicaltypekind=Record] [canonicaltemplateargs/1= [type=Specialization<bool> &] [typekind=LValueReference]] [isPOD=1]
// CHECK: TypeAliasDecl=baz:76:7 (Definition) [type=baz] [typekind=Typedef] [templateargs/1= [type=A<void>] [typekind=Unexposed]] [canonicaltype=A<void>] [canonicaltypekind=Record] [canonicaltemplateargs/1= [type=void] [typekind=Void]] [isPOD=0]
-// CHECK: VarDecl=autoTemplPointer:78:6 (Definition) [type=Specialization<Specialization<bool> &> *] [typekind=Auto] [canonicaltype=Specialization<Specialization<bool> &> *] [canonicaltypekind=Pointer] [isPOD=1] [pointeetype=Specialization<Specialization<bool> &>] [pointeekind=Record]
+// CHECK: VarDecl=autoTemplPointer:78:6 (Definition) [type=Specialization<Specialization<bool> &> *] [typekind=Auto] [canonicaltype=Specialization<Specialization<bool> &> *] [canonicaltypekind=Pointer] [isPOD=1] [pointeetype=Specialization<Specialization<bool> &>] [pointeekind=Auto]
// CHECK: CallExpr=Bar:17:3 [type=outer::inner::Bar] [typekind=Elaborated] [canonicaltype=outer::inner::Bar] [canonicaltypekind=Record] [args= [outer::Foo<bool> *] [Pointer]] [isPOD=0] [nbFields=3]
// CHECK: StructDecl=:84:3 (Definition) [type=X::(anonymous struct at {{.*}}print-type.cpp:84:3)] [typekind=Record] [isPOD=1] [nbFields=1] [isAnon=1]
// CHECK: ClassDecl=:85:3 (Definition) [type=X::(anonymous class at {{.*}}print-type.cpp:85:3)] [typekind=Record] [isPOD=1] [nbFields=1] [isAnon=1]
Index: clang/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p1-0x.cpp
===================================================================
--- clang/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p1-0x.cpp
+++ clang/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p1-0x.cpp
@@ -53,9 +53,8 @@
}
-// FIXME: Use the template parameter names in this diagnostic.
template<typename ...Args1, typename ...Args2>
-typename get_nth_type<0, Args1...>::type first_arg_pair(pair<Args1, Args2>...); // expected-note{{candidate template ignored: could not match 'pair<type-parameter-0-0, type-parameter-0-1>' against 'int'}}
+typename get_nth_type<0, Args1...>::type first_arg_pair(pair<Args1, Args2>...); // expected-note{{candidate template ignored: could not match 'pair<Args1, Args2>' against 'int'}}
template<typename ...Args1, typename ...Args2>
typename get_nth_type<1, Args1...>::type second_arg_pair(pair<Args1, Args2>...);
Index: clang/test/CXX/temp/temp.decls/temp.variadic/multi-level-substitution.cpp
===================================================================
--- clang/test/CXX/temp/temp.decls/temp.variadic/multi-level-substitution.cpp
+++ clang/test/CXX/temp/temp.decls/temp.variadic/multi-level-substitution.cpp
@@ -284,7 +284,7 @@
void g(U &&...u, T &&...t) {} // expected-note {{candidate}}
template<typename...U>
void h(tuple<T, U> &&...) {}
- // expected-note@-1 {{candidate template ignored: could not match 'tuple<type-parameter-0-0, type-parameter-0-0>' against 'int'}}
+ // expected-note@-1 {{candidate template ignored: could not match 'tuple<T, U>' against 'int'}}
// expected-note@-2 {{candidate template ignored: substitution failure: deduced incomplete pack <(no value)> for template parameter 'U'}}
template<typename...U>
Index: clang/test/CXX/stmt.stmt/stmt.iter/stmt.ranged/p1.cpp
===================================================================
--- clang/test/CXX/stmt.stmt/stmt.iter/stmt.ranged/p1.cpp
+++ clang/test/CXX/stmt.stmt/stmt.iter/stmt.ranged/p1.cpp
@@ -321,14 +321,14 @@
namespace NE {
struct E {
- void begin(); // expected-note {{member is not a candidate because range type 'p0962r1::NE::E' has no 'end' member}}
+ void begin(); // expected-note {{member is not a candidate because range type 'NE::E' has no 'end' member}}
};
int *end(E);
}
namespace NF {
struct F {
- void end(); // expected-note {{member is not a candidate because range type 'p0962r1::NF::F' has no 'begin' member}}
+ void end(); // expected-note {{member is not a candidate because range type 'NF::F' has no 'begin' member}}
};
int *begin(F);
}
@@ -336,9 +336,9 @@
void use(NA::A a, NB::B b, NC::C c, ND::D d, NE::E e, NF::F f) {
for (auto x : a) {}
for (auto x : b) {}
- for (auto x : c) {} // expected-error {{invalid range expression of type 'p0962r1::NC::C'; no viable 'end' function available}}
- for (auto x : d) {} // expected-error {{invalid range expression of type 'p0962r1::ND::D'; no viable 'begin' function available}}
- for (auto x : e) {} // expected-error {{invalid range expression of type 'p0962r1::NE::E'; no viable 'begin' function available}}
- for (auto x : f) {} // expected-error {{invalid range expression of type 'p0962r1::NF::F'; no viable 'end' function available}}
+ for (auto x : c) {} // expected-error {{invalid range expression of type 'NC::C'; no viable 'end' function available}}
+ for (auto x : d) {} // expected-error {{invalid range expression of type 'ND::D'; no viable 'begin' function available}}
+ for (auto x : e) {} // expected-error {{invalid range expression of type 'NE::E'; no viable 'begin' function available}}
+ for (auto x : f) {} // expected-error {{invalid range expression of type 'NF::F'; no viable 'end' function available}}
}
}
Index: clang/test/CXX/over/over.match/over.match.funcs/over.match.class.deduct/p2.cpp
===================================================================
--- clang/test/CXX/over/over.match/over.match.funcs/over.match.class.deduct/p2.cpp
+++ clang/test/CXX/over/over.match/over.match.funcs/over.match.class.deduct/p2.cpp
@@ -36,7 +36,7 @@
namespace p0702r1 {
template<typename T> struct X { // expected-note {{candidate}}
- X(std::initializer_list<T>); // expected-note {{candidate template ignored: could not match 'initializer_list<type-parameter-0-0>' against 'p0702r1::Z'}}
+ X(std::initializer_list<T>); // expected-note {{candidate template ignored: could not match 'initializer_list<T>' against 'p0702r1::Z'}}
};
X xi = {0};
Index: clang/lib/Sema/TreeTransform.h
===================================================================
--- clang/lib/Sema/TreeTransform.h
+++ clang/lib/Sema/TreeTransform.h
@@ -6561,7 +6561,7 @@
T->isDependentType() || T->isConstrained()) {
// FIXME: Maybe don't rebuild if all template arguments are the same.
llvm::SmallVector<TemplateArgument, 4> NewArgList;
- NewArgList.reserve(NewArgList.size());
+ NewArgList.reserve(NewTemplateArgs.size());
for (const auto &ArgLoc : NewTemplateArgs.arguments())
NewArgList.push_back(ArgLoc.getArgument());
Result = getDerived().RebuildAutoType(NewDeduced, T->getKeyword(), NewCD,
@@ -14446,10 +14446,10 @@
return SemaRef.Context.getTypeDeclType(Ty);
}
-template<typename Derived>
+template <typename Derived>
QualType TreeTransform<Derived>::RebuildTypeOfExprType(Expr *E,
- SourceLocation Loc) {
- return SemaRef.BuildTypeofExprType(E, Loc);
+ SourceLocation) {
+ return SemaRef.BuildTypeofExprType(E);
}
template<typename Derived>
@@ -14457,10 +14457,9 @@
return SemaRef.Context.getTypeOfType(Underlying);
}
-template<typename Derived>
-QualType TreeTransform<Derived>::RebuildDecltypeType(Expr *E,
- SourceLocation Loc) {
- return SemaRef.BuildDecltypeType(E, Loc);
+template <typename Derived>
+QualType TreeTransform<Derived>::RebuildDecltypeType(Expr *E, SourceLocation) {
+ return SemaRef.BuildDecltypeType(E);
}
template<typename Derived>
Index: clang/lib/Sema/SemaType.cpp
===================================================================
--- clang/lib/Sema/SemaType.cpp
+++ clang/lib/Sema/SemaType.cpp
@@ -1622,7 +1622,7 @@
Expr *E = DS.getRepAsExpr();
assert(E && "Didn't get an expression for typeof?");
// TypeQuals handled by caller.
- Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc());
+ Result = S.BuildTypeofExprType(E);
if (Result.isNull()) {
Result = Context.IntTy;
declarator.setInvalidType(true);
@@ -1633,7 +1633,7 @@
Expr *E = DS.getRepAsExpr();
assert(E && "Didn't get an expression for decltype?");
// TypeQuals handled by caller.
- Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc());
+ Result = S.BuildDecltypeType(E);
if (Result.isNull()) {
Result = Context.IntTy;
declarator.setInvalidType(true);
@@ -8893,7 +8893,7 @@
return Context.getElaboratedType(Keyword, NNS, T, OwnedTagDecl);
}
-QualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) {
+QualType Sema::BuildTypeofExprType(Expr *E) {
assert(!E->hasPlaceholderType() && "unexpected placeholder");
if (!getLangOpts().CPlusPlus && E->refersToBitField())
@@ -8910,9 +8910,9 @@
/// getDecltypeForExpr - Given an expr, will return the decltype for
/// that expression, according to the rules in C++11
/// [dcl.type.simple]p4 and C++11 [expr.lambda.prim]p18.
-static QualType getDecltypeForExpr(Sema &S, Expr *E) {
+QualType Sema::getDecltypeForExpr(Expr *E) {
if (E->isTypeDependent())
- return S.Context.DependentTy;
+ return Context.DependentTy;
Expr *IDExpr = E;
if (auto *ImplCastExpr = dyn_cast<ImplicitCastExpr>(E))
@@ -8929,7 +8929,7 @@
// parameter object. This rule makes no difference before C++20 so we apply
// it unconditionally.
if (const auto *SNTTPE = dyn_cast<SubstNonTypeTemplateParmExpr>(IDExpr))
- return SNTTPE->getParameterType(S.Context);
+ return SNTTPE->getParameterType(Context);
// - if e is an unparenthesized id-expression or an unparenthesized class
// member access (5.2.5), decltype(e) is the type of the entity named
@@ -8937,22 +8937,20 @@
// functions, the program is ill-formed;
//
// We apply the same rules for Objective-C ivar and property references.
- if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(IDExpr)) {
+ if (const auto *DRE = dyn_cast<DeclRefExpr>(IDExpr)) {
const ValueDecl *VD = DRE->getDecl();
- if (auto *TPO = dyn_cast<TemplateParamObjectDecl>(VD))
- return TPO->getType().getUnqualifiedType();
- return VD->getType();
- } else if (const MemberExpr *ME = dyn_cast<MemberExpr>(IDExpr)) {
- if (const ValueDecl *VD = ME->getMemberDecl())
+ QualType T = VD->getType();
+ return isa<TemplateParamObjectDecl>(VD) ? T.getUnqualifiedType() : T;
+ } else if (const auto *ME = dyn_cast<MemberExpr>(IDExpr)) {
+ if (const auto *VD = ME->getMemberDecl())
if (isa<FieldDecl>(VD) || isa<VarDecl>(VD))
return VD->getType();
- } else if (const ObjCIvarRefExpr *IR = dyn_cast<ObjCIvarRefExpr>(IDExpr)) {
+ } else if (const auto *IR = dyn_cast<ObjCIvarRefExpr>(IDExpr)) {
return IR->getDecl()->getType();
- } else if (const ObjCPropertyRefExpr *PR =
- dyn_cast<ObjCPropertyRefExpr>(IDExpr)) {
+ } else if (const auto *PR = dyn_cast<ObjCPropertyRefExpr>(IDExpr)) {
if (PR->isExplicitProperty())
return PR->getExplicitProperty()->getType();
- } else if (auto *PE = dyn_cast<PredefinedExpr>(IDExpr)) {
+ } else if (const auto *PE = dyn_cast<PredefinedExpr>(IDExpr)) {
return PE->getType();
}
@@ -8963,24 +8961,20 @@
// access to a corresponding data member of the closure type that
// would have been declared if x were an odr-use of the denoted
// entity.
- using namespace sema;
- if (S.getCurLambda()) {
- if (isa<ParenExpr>(IDExpr)) {
- if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(IDExpr->IgnoreParens())) {
- if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) {
- QualType T = S.getCapturedDeclRefType(Var, DRE->getLocation());
- if (!T.isNull())
- return S.Context.getLValueReferenceType(T);
- }
+ if (getCurLambda() && isa<ParenExpr>(IDExpr)) {
+ if (auto *DRE = dyn_cast<DeclRefExpr>(IDExpr->IgnoreParens())) {
+ if (auto *Var = dyn_cast<VarDecl>(DRE->getDecl())) {
+ QualType T = getCapturedDeclRefType(Var, DRE->getLocation());
+ if (!T.isNull())
+ return Context.getLValueReferenceType(T);
}
}
}
- return S.Context.getReferenceQualifiedType(E);
+ return Context.getReferenceQualifiedType(E);
}
-QualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc,
- bool AsUnevaluated) {
+QualType Sema::BuildDecltypeType(Expr *E, bool AsUnevaluated) {
assert(!E->hasPlaceholderType() && "unexpected placeholder");
if (AsUnevaluated && CodeSynthesisContexts.empty() &&
@@ -8991,8 +8985,7 @@
// used to build SFINAE gadgets.
Diag(E->getExprLoc(), diag::warn_side_effects_unevaluated_context);
}
-
- return Context.getDecltypeType(E, getDecltypeForExpr(*this, E));
+ return Context.getDecltypeType(E, getDecltypeForExpr(E));
}
QualType Sema::BuildUnaryTransformType(QualType BaseType,
Index: clang/lib/Sema/SemaTemplateDeduction.cpp
===================================================================
--- clang/lib/Sema/SemaTemplateDeduction.cpp
+++ clang/lib/Sema/SemaTemplateDeduction.cpp
@@ -139,17 +139,11 @@
TemplateDeductionInfo &Info,
SmallVectorImpl<DeducedTemplateArgument> &Deduced);
-static Sema::TemplateDeductionResult
-DeduceTemplateArgumentsByTypeMatch(Sema &S,
- TemplateParameterList *TemplateParams,
- QualType Param,
- QualType Arg,
- TemplateDeductionInfo &Info,
- SmallVectorImpl<DeducedTemplateArgument> &
- Deduced,
- unsigned TDF,
- bool PartialOrdering = false,
- bool DeducedFromArrayBound = false);
+static Sema::TemplateDeductionResult DeduceTemplateArgumentsByTypeMatch(
+ Sema &S, TemplateParameterList *TemplateParams, QualType Param,
+ QualType Arg, TemplateDeductionInfo &Info,
+ SmallVectorImpl<DeducedTemplateArgument> &Deduced, unsigned TDF,
+ bool PartialOrdering = false, bool DeducedFromArrayBound = false);
static Sema::TemplateDeductionResult
DeduceTemplateArguments(Sema &S, TemplateParameterList *TemplateParams,
@@ -565,15 +559,20 @@
QualType Arg,
TemplateDeductionInfo &Info,
SmallVectorImpl<DeducedTemplateArgument> &Deduced) {
- assert(Arg.isCanonical() && "Argument type must be canonical");
+ QualType ArgDesug;
+ auto updateArg = [&Arg, &ArgDesug, &S](QualType T) {
+ Arg = T;
+ ArgDesug = T.getDesugaredType(S.Context);
+ };
+ updateArg(Arg);
// Treat an injected-class-name as its underlying template-id.
- if (auto *Injected = dyn_cast<InjectedClassNameType>(Arg))
- Arg = Injected->getInjectedSpecializationType();
+ if (auto *Injected = dyn_cast<InjectedClassNameType>(ArgDesug))
+ updateArg(Injected->getInjectedSpecializationType());
// Check whether the template argument is a dependent template-id.
- if (const TemplateSpecializationType *SpecArg
- = dyn_cast<TemplateSpecializationType>(Arg)) {
+ if (const TemplateSpecializationType *SpecArg =
+ dyn_cast<TemplateSpecializationType>(ArgDesug)) {
// Perform template argument deduction for the template name.
if (Sema::TemplateDeductionResult Result
= DeduceTemplateArguments(S, TemplateParams,
@@ -595,7 +594,7 @@
// If the argument type is a class template specialization, we
// perform template argument deduction using its template
// arguments.
- const RecordType *RecordArg = dyn_cast<RecordType>(Arg);
+ const RecordType *RecordArg = dyn_cast<RecordType>(ArgDesug);
if (!RecordArg) {
Info.FirstArg = TemplateArgument(QualType(Param, 0));
Info.SecondArg = TemplateArgument(Arg);
@@ -1047,11 +1046,12 @@
return Sema::TDK_MiscellaneousDeductionFailure;
}
- if (Sema::TemplateDeductionResult Result
- = DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
- Params[ParamIdx], Args[ArgIdx],
- Info, Deduced, TDF,
- PartialOrdering))
+ if (Sema::TemplateDeductionResult Result =
+ DeduceTemplateArgumentsByTypeMatch(
+ S, TemplateParams, Params[ParamIdx].getUnqualifiedType(),
+ Args[ArgIdx].getUnqualifiedType(), Info, Deduced, TDF,
+ PartialOrdering,
+ /*DeducedFromArrayBound=*/false))
return Result;
++ArgIdx;
@@ -1073,10 +1073,11 @@
if (ParamIdx + 1 == NumParams || PackScope.hasFixedArity()) {
for (; ArgIdx < NumArgs && PackScope.hasNextElement(); ++ArgIdx) {
// Deduce template arguments from the pattern.
- if (Sema::TemplateDeductionResult Result
- = DeduceTemplateArgumentsByTypeMatch(S, TemplateParams, Pattern,
- Args[ArgIdx], Info, Deduced,
- TDF, PartialOrdering))
+ if (Sema::TemplateDeductionResult Result =
+ DeduceTemplateArgumentsByTypeMatch(
+ S, TemplateParams, Pattern.getUnqualifiedType(),
+ Args[ArgIdx].getUnqualifiedType(), Info, Deduced, TDF,
+ PartialOrdering, /*DeducedFromArrayBound=*/false))
return Result;
PackScope.nextPackElement();
@@ -1341,25 +1342,24 @@
/// \returns the result of template argument deduction so far. Note that a
/// "success" result means that template argument deduction has not yet failed,
/// but it may still fail, later, for other reasons.
-static Sema::TemplateDeductionResult
-DeduceTemplateArgumentsByTypeMatch(Sema &S,
- TemplateParameterList *TemplateParams,
- QualType ParamIn, QualType ArgIn,
- TemplateDeductionInfo &Info,
- SmallVectorImpl<DeducedTemplateArgument> &Deduced,
- unsigned TDF,
- bool PartialOrdering,
- bool DeducedFromArrayBound) {
- // We only want to look at the canonical types, since typedefs and
- // sugar are not part of template argument deduction.
- QualType Param = S.Context.getCanonicalType(ParamIn);
- QualType Arg = S.Context.getCanonicalType(ArgIn);
-
- // If the argument type is a pack expansion, look at its pattern.
- // This isn't explicitly called out
- if (const PackExpansionType *ArgExpansion
- = dyn_cast<PackExpansionType>(Arg))
- Arg = ArgExpansion->getPattern();
+static Sema::TemplateDeductionResult DeduceTemplateArgumentsByTypeMatch(
+ Sema &S, TemplateParameterList *TemplateParams, QualType Param,
+ QualType Arg, TemplateDeductionInfo &Info,
+ SmallVectorImpl<DeducedTemplateArgument> &Deduced, unsigned TDF,
+ bool PartialOrdering, bool DeducedFromArrayBound) {
+ QualType ParDesug;
+ auto updatePar = [&Param, &ParDesug, &S](QualType T) {
+ Param = T;
+ ParDesug = T.getDesugaredType(S.Context);
+ };
+ updatePar(Param);
+
+ QualType ArgDesug;
+ auto updateArg = [&Arg, &ArgDesug, &S](QualType T) {
+ Arg = T;
+ ArgDesug = T.getDesugaredType(S.Context);
+ };
+ updateArg(Arg);
if (PartialOrdering) {
// C++11 [temp.deduct.partial]p5:
@@ -1368,12 +1368,12 @@
// - If P is a reference type, P is replaced by the type referred to.
const ReferenceType *ParamRef = Param->getAs<ReferenceType>();
if (ParamRef)
- Param = ParamRef->getPointeeType();
+ updatePar(ParamRef->getPointeeType());
// - If A is a reference type, A is replaced by the type referred to.
- const ReferenceType *ArgRef = Arg->getAs<ReferenceType>();
+ const ReferenceType *ArgRef = ArgDesug->getAs<ReferenceType>();
if (ArgRef)
- Arg = ArgRef->getPointeeType();
+ updateArg(ArgRef->getPointeeType());
if (ParamRef && ArgRef && S.Context.hasSameUnqualifiedType(Param, Arg)) {
// C++11 [temp.deduct.partial]p9:
@@ -1404,8 +1404,8 @@
ArgQuals.getObjCLifetime() == Qualifiers::OCL_ExplicitNone &&
ParamQuals.withoutObjCLifetime() ==
ArgQuals.withoutObjCLifetime())) {
- Info.FirstArg = TemplateArgument(ParamIn);
- Info.SecondArg = TemplateArgument(ArgIn);
+ Info.FirstArg = TemplateArgument(Param);
+ Info.SecondArg = TemplateArgument(Arg);
return Sema::TDK_NonDeducedMismatch;
}
}
@@ -1414,10 +1414,10 @@
// Remove any top-level cv-qualifiers:
// - If P is a cv-qualified type, P is replaced by the cv-unqualified
// version of P.
- Param = Param.getUnqualifiedType();
+ updatePar(Param.getUnqualifiedType());
// - If A is a cv-qualified type, A is replaced by the cv-unqualified
// version of A.
- Arg = Arg.getUnqualifiedType();
+ updateArg(Arg.getUnqualifiedType());
} else {
// C++0x [temp.deduct.call]p4 bullet 1:
// - If the original P is a reference type, the deduced A (i.e., the type
@@ -1427,8 +1427,8 @@
Qualifiers Quals;
QualType UnqualParam = S.Context.getUnqualifiedArrayType(Param, Quals);
Quals.setCVRQualifiers(Quals.getCVRQualifiers() &
- Arg.getCVRQualifiers());
- Param = S.Context.getQualifiedType(UnqualParam, Quals);
+ ArgDesug.getCVRQualifiers());
+ updatePar(S.Context.getQualifiedType(UnqualParam, Quals));
}
if ((TDF & TDF_TopLevelParameterTypeList) && !Param->isFunctionType()) {
@@ -1444,8 +1444,8 @@
// Pi is T&& and Ai is X&, the adjusted Pi will be T, causing T to be
// deduced as X&. - end note ]
TDF &= ~TDF_TopLevelParameterTypeList;
- if (isForwardingReference(Param, 0) && Arg->isLValueReferenceType())
- Param = Param->getPointeeType();
+ if (isForwardingReference(Param, 0) && ArgDesug->isLValueReferenceType())
+ updatePar(Param->getPointeeType());
}
}
@@ -1456,32 +1456,29 @@
//
// T
// cv-list T
- if (const TemplateTypeParmType *TemplateTypeParm
- = Param->getAs<TemplateTypeParmType>()) {
+ if (const TemplateTypeParmType *TemplateTypeParm =
+ ParDesug->getAs<TemplateTypeParmType>()) {
// Just skip any attempts to deduce from a placeholder type or a parameter
// at a different depth.
- if (Arg->isPlaceholderType() ||
+ if (ArgDesug->isPlaceholderType() ||
Info.getDeducedDepth() != TemplateTypeParm->getDepth())
return Sema::TDK_Success;
unsigned Index = TemplateTypeParm->getIndex();
- bool RecanonicalizeArg = false;
// If the argument type is an array type, move the qualifiers up to the
// top level, so they can be matched with the qualifiers on the parameter.
- if (isa<ArrayType>(Arg)) {
+ if (isa<ArrayType>(ArgDesug)) {
Qualifiers Quals;
- Arg = S.Context.getUnqualifiedArrayType(Arg, Quals);
- if (Quals) {
- Arg = S.Context.getQualifiedType(Arg, Quals);
- RecanonicalizeArg = true;
- }
+ updateArg(S.Context.getUnqualifiedArrayType(ArgDesug, Quals));
+ if (Quals)
+ updateArg(S.Context.getQualifiedType(ArgDesug, Quals));
}
// The argument type can not be less qualified than the parameter
// type.
if (!(TDF & TDF_IgnoreQualifiers) &&
- hasInconsistentOrSupersetQualifiersOf(Param, Arg)) {
+ hasInconsistentOrSupersetQualifiersOf(Param, ArgDesug)) {
Info.Param = cast<TemplateTypeParmDecl>(TemplateParams->getParam(Index));
Info.FirstArg = TemplateArgument(Param);
Info.SecondArg = TemplateArgument(Arg);
@@ -1496,7 +1493,8 @@
assert(TemplateTypeParm->getDepth() == Info.getDeducedDepth() &&
"saw template type parameter with wrong depth");
- assert(Arg != S.Context.OverloadTy && "Unresolved overloaded function");
+ assert(ArgDesug != S.Context.OverloadTy &&
+ "Unresolved overloaded function");
QualType DeducedType = Arg;
// Remove any qualifiers on the parameter from the deduced type.
@@ -1530,11 +1528,8 @@
!DeducedQs.hasObjCLifetime())
DeducedQs.setObjCLifetime(Qualifiers::OCL_Strong);
- DeducedType = S.Context.getQualifiedType(DeducedType.getUnqualifiedType(),
- DeducedQs);
-
- if (RecanonicalizeArg)
- DeducedType = S.Context.getCanonicalType(DeducedType);
+ DeducedType =
+ S.Context.getQualifiedType(DeducedType.getUnqualifiedType(), DeducedQs);
DeducedTemplateArgument NewDeduced(DeducedType, DeducedFromArrayBound);
DeducedTemplateArgument Result = checkDeducedTemplateArguments(S.Context,
@@ -1552,14 +1547,14 @@
}
// Set up the template argument deduction information for a failure.
- Info.FirstArg = TemplateArgument(ParamIn);
- Info.SecondArg = TemplateArgument(ArgIn);
+ Info.FirstArg = TemplateArgument(Param);
+ Info.SecondArg = TemplateArgument(Arg);
// If the parameter is an already-substituted template parameter
// pack, do nothing: we don't know which of its arguments to look
// at, so we have to wait until all of the parameter packs in this
// expansion have arguments.
- if (isa<SubstTemplateTypeParmPackType>(Param))
+ if (isa<SubstTemplateTypeParmPackType>(ParDesug))
return Sema::TDK_Success;
// Check the cv-qualifiers on the parameter and argument types.
@@ -1573,16 +1568,16 @@
// C++ [temp.deduct.conv]p4:
// If the original A is a reference type, A can be more cv-qualified
// than the deduced A
- if (!Arg.getQualifiers().compatiblyIncludes(Param.getQualifiers()))
+ if (!ArgDesug.getQualifiers().compatiblyIncludes(Param.getQualifiers()))
return Sema::TDK_NonDeducedMismatch;
// Strip out all extra qualifiers from the argument to figure out the
// type we're converting to, prior to the qualification conversion.
Qualifiers Quals;
- Arg = S.Context.getUnqualifiedArrayType(Arg, Quals);
- Arg = S.Context.getQualifiedType(Arg, Param.getQualifiers());
+ updateArg(S.Context.getUnqualifiedArrayType(ArgDesug, Quals));
+ updateArg(S.Context.getQualifiedType(ArgDesug, Param.getQualifiers()));
} else if (!IsPossiblyOpaquelyQualifiedType(Param)) {
- if (Param.getCVRQualifiers() != Arg.getCVRQualifiers())
+ if (ParDesug.getCVRQualifiers() != ArgDesug.getCVRQualifiers())
return Sema::TDK_NonDeducedMismatch;
}
@@ -1592,7 +1587,7 @@
bool NonDeduced =
(TDF & TDF_AllowCompatibleFunctionType)
? !S.isSameOrCompatibleFunctionType(CanParam, CanArg)
- : Param != Arg;
+ : CanParam != CanArg;
if (NonDeduced) {
return Sema::TDK_NonDeducedMismatch;
}
@@ -1614,7 +1609,7 @@
}
}
- switch (Param->getTypeClass()) {
+ switch (ParDesug->getTypeClass()) {
// Non-canonical types cannot appear here.
#define NON_CANONICAL_TYPE(Class, Base) \
case Type::Class: llvm_unreachable("deducing non-canonical type: " #Class);
@@ -1641,99 +1636,98 @@
return Sema::TDK_Success;
if (TDF & TDF_IgnoreQualifiers) {
- Param = Param.getUnqualifiedType();
- Arg = Arg.getUnqualifiedType();
+ ParDesug = ParDesug.getUnqualifiedType();
+ ArgDesug = ArgDesug.getUnqualifiedType();
}
- return Param == Arg? Sema::TDK_Success : Sema::TDK_NonDeducedMismatch;
+ return ParDesug == ArgDesug ? Sema::TDK_Success
+ : Sema::TDK_NonDeducedMismatch;
// _Complex T [placeholder extension]
case Type::Complex:
- if (const ComplexType *ComplexArg = Arg->getAs<ComplexType>())
- return DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
- cast<ComplexType>(Param)->getElementType(),
- ComplexArg->getElementType(),
- Info, Deduced, TDF);
+ if (const ComplexType *ComplexArg = ArgDesug->getAs<ComplexType>())
+ return DeduceTemplateArgumentsByTypeMatch(
+ S, TemplateParams, cast<ComplexType>(ParDesug)->getElementType(),
+ ComplexArg->getElementType(), Info, Deduced, TDF);
return Sema::TDK_NonDeducedMismatch;
// _Atomic T [extension]
case Type::Atomic:
- if (const AtomicType *AtomicArg = Arg->getAs<AtomicType>())
- return DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
- cast<AtomicType>(Param)->getValueType(),
- AtomicArg->getValueType(),
- Info, Deduced, TDF);
+ if (const AtomicType *AtomicArg = ArgDesug->getAs<AtomicType>())
+ return DeduceTemplateArgumentsByTypeMatch(
+ S, TemplateParams, cast<AtomicType>(ParDesug)->getValueType(),
+ AtomicArg->getValueType(), Info, Deduced, TDF);
return Sema::TDK_NonDeducedMismatch;
// T *
case Type::Pointer: {
QualType PointeeType;
- if (const PointerType *PointerArg = Arg->getAs<PointerType>()) {
+ if (const PointerType *PointerArg = ArgDesug->getAs<PointerType>()) {
PointeeType = PointerArg->getPointeeType();
- } else if (const ObjCObjectPointerType *PointerArg
- = Arg->getAs<ObjCObjectPointerType>()) {
+ } else if (const ObjCObjectPointerType *PointerArg =
+ ArgDesug->getAs<ObjCObjectPointerType>()) {
PointeeType = PointerArg->getPointeeType();
} else {
return Sema::TDK_NonDeducedMismatch;
}
unsigned SubTDF = TDF & (TDF_IgnoreQualifiers | TDF_DerivedClass);
- return DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
- cast<PointerType>(Param)->getPointeeType(),
- PointeeType,
- Info, Deduced, SubTDF);
+ return DeduceTemplateArgumentsByTypeMatch(
+ S, TemplateParams, cast<PointerType>(ParDesug)->getPointeeType(),
+ PointeeType, Info, Deduced, SubTDF);
}
// T &
case Type::LValueReference: {
const LValueReferenceType *ReferenceArg =
- Arg->getAs<LValueReferenceType>();
+ ArgDesug->getAs<LValueReferenceType>();
if (!ReferenceArg)
return Sema::TDK_NonDeducedMismatch;
- return DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
- cast<LValueReferenceType>(Param)->getPointeeType(),
- ReferenceArg->getPointeeType(), Info, Deduced, 0);
+ return DeduceTemplateArgumentsByTypeMatch(
+ S, TemplateParams,
+ cast<LValueReferenceType>(ParDesug)->getPointeeType(),
+ ReferenceArg->getPointeeType(), Info, Deduced, 0);
}
// T && [C++0x]
case Type::RValueReference: {
const RValueReferenceType *ReferenceArg =
- Arg->getAs<RValueReferenceType>();
+ ArgDesug->getAs<RValueReferenceType>();
if (!ReferenceArg)
return Sema::TDK_NonDeducedMismatch;
- return DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
- cast<RValueReferenceType>(Param)->getPointeeType(),
- ReferenceArg->getPointeeType(),
- Info, Deduced, 0);
+ return DeduceTemplateArgumentsByTypeMatch(
+ S, TemplateParams,
+ cast<RValueReferenceType>(ParDesug)->getPointeeType(),
+ ReferenceArg->getPointeeType(), Info, Deduced, 0);
}
// T [] (implied, but not stated explicitly)
case Type::IncompleteArray: {
const IncompleteArrayType *IncompleteArrayArg =
- S.Context.getAsIncompleteArrayType(Arg);
+ S.Context.getAsIncompleteArrayType(ArgDesug);
if (!IncompleteArrayArg)
return Sema::TDK_NonDeducedMismatch;
unsigned SubTDF = TDF & TDF_IgnoreQualifiers;
- return DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
- S.Context.getAsIncompleteArrayType(Param)->getElementType(),
- IncompleteArrayArg->getElementType(),
- Info, Deduced, SubTDF);
+ return DeduceTemplateArgumentsByTypeMatch(
+ S, TemplateParams,
+ S.Context.getAsIncompleteArrayType(ParDesug)->getElementType(),
+ IncompleteArrayArg->getElementType(), Info, Deduced, SubTDF);
}
// T [integer-constant]
case Type::ConstantArray: {
const ConstantArrayType *ConstantArrayArg =
- S.Context.getAsConstantArrayType(Arg);
+ S.Context.getAsConstantArrayType(ArgDesug);
if (!ConstantArrayArg)
return Sema::TDK_NonDeducedMismatch;
const ConstantArrayType *ConstantArrayParm =
- S.Context.getAsConstantArrayType(Param);
+ S.Context.getAsConstantArrayType(ParDesug);
if (ConstantArrayArg->getSize() != ConstantArrayParm->getSize())
return Sema::TDK_NonDeducedMismatch;
@@ -1746,15 +1740,15 @@
// type [i]
case Type::DependentSizedArray: {
- const ArrayType *ArrayArg = S.Context.getAsArrayType(Arg);
+ const ArrayType *ArrayArg = S.Context.getAsArrayType(ArgDesug);
if (!ArrayArg)
return Sema::TDK_NonDeducedMismatch;
unsigned SubTDF = TDF & TDF_IgnoreQualifiers;
// Check the element type of the arrays
- const DependentSizedArrayType *DependentArrayParm
- = S.Context.getAsDependentSizedArrayType(Param);
+ const DependentSizedArrayType *DependentArrayParm =
+ S.Context.getAsDependentSizedArrayType(ParDesug);
if (Sema::TemplateDeductionResult Result
= DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
DependentArrayParm->getElementType(),
@@ -1797,12 +1791,12 @@
case Type::FunctionProto: {
unsigned SubTDF = TDF & TDF_TopLevelParameterTypeList;
const FunctionProtoType *FunctionProtoArg =
- dyn_cast<FunctionProtoType>(Arg);
+ dyn_cast<FunctionProtoType>(ArgDesug);
if (!FunctionProtoArg)
return Sema::TDK_NonDeducedMismatch;
const FunctionProtoType *FunctionProtoParam =
- cast<FunctionProtoType>(Param);
+ cast<FunctionProtoType>(ParDesug);
if (FunctionProtoParam->getMethodQuals()
!= FunctionProtoArg->getMethodQuals() ||
@@ -1813,8 +1807,12 @@
// Check return types.
if (auto Result = DeduceTemplateArgumentsByTypeMatch(
- S, TemplateParams, FunctionProtoParam->getReturnType(),
- FunctionProtoArg->getReturnType(), Info, Deduced, 0))
+ S, TemplateParams,
+ FunctionProtoParam->getReturnType().getUnqualifiedType(),
+ FunctionProtoArg->getReturnType().getUnqualifiedType(), Info,
+ Deduced, 0,
+ /*PartialOrdering=*/false,
+ /*DeducedFromArrayBound=*/false))
return Result;
// Check parameter types.
@@ -1870,9 +1868,9 @@
case Type::InjectedClassName:
// Treat a template's injected-class-name as if the template
// specialization type had been used.
- Param = cast<InjectedClassNameType>(Param)
- ->getInjectedSpecializationType();
- assert(isa<TemplateSpecializationType>(Param) &&
+ updatePar(cast<InjectedClassNameType>(ParDesug)
+ ->getInjectedSpecializationType());
+ assert(isa<TemplateSpecializationType>(ParDesug) &&
"injected class name is not a template specialization type");
LLVM_FALLTHROUGH;
@@ -1883,11 +1881,11 @@
// TT<>
case Type::TemplateSpecialization: {
const TemplateSpecializationType *SpecParam =
- cast<TemplateSpecializationType>(Param);
+ cast<TemplateSpecializationType>(ParDesug);
// When Arg cannot be a derived class, we can just try to deduce template
// arguments from the template-id.
- const RecordType *RecordT = Arg->getAs<RecordType>();
+ const RecordType *RecordT = ArgDesug->getAs<RecordType>();
if (!(TDF & TDF_DerivedClass) || !RecordT)
return DeduceTemplateArguments(S, TemplateParams, SpecParam, Arg, Info,
Deduced);
@@ -1929,8 +1927,9 @@
// T (T::*)()
// T (T::*)(T)
case Type::MemberPointer: {
- const MemberPointerType *MemPtrParam = cast<MemberPointerType>(Param);
- const MemberPointerType *MemPtrArg = dyn_cast<MemberPointerType>(Arg);
+ const MemberPointerType *MemPtrParam = cast<MemberPointerType>(ParDesug);
+ const MemberPointerType *MemPtrArg =
+ dyn_cast<MemberPointerType>(ArgDesug);
if (!MemPtrArg)
return Sema::TDK_NonDeducedMismatch;
@@ -1964,8 +1963,9 @@
// T(^)()
// T(^)(T)
case Type::BlockPointer: {
- const BlockPointerType *BlockPtrParam = cast<BlockPointerType>(Param);
- const BlockPointerType *BlockPtrArg = dyn_cast<BlockPointerType>(Arg);
+ const BlockPointerType *BlockPtrParam = cast<BlockPointerType>(ParDesug);
+ const BlockPointerType *BlockPtrArg =
+ dyn_cast<BlockPointerType>(ArgDesug);
if (!BlockPtrArg)
return Sema::TDK_NonDeducedMismatch;
@@ -1980,8 +1980,8 @@
//
// T __attribute__(((ext_vector_type(<integral constant>))))
case Type::ExtVector: {
- const ExtVectorType *VectorParam = cast<ExtVectorType>(Param);
- if (const ExtVectorType *VectorArg = dyn_cast<ExtVectorType>(Arg)) {
+ const ExtVectorType *VectorParam = cast<ExtVectorType>(ParDesug);
+ if (const ExtVectorType *VectorArg = dyn_cast<ExtVectorType>(ArgDesug)) {
// Make sure that the vectors have the same number of elements.
if (VectorParam->getNumElements() != VectorArg->getNumElements())
return Sema::TDK_NonDeducedMismatch;
@@ -1993,8 +1993,8 @@
Info, Deduced, TDF);
}
- if (const DependentSizedExtVectorType *VectorArg
- = dyn_cast<DependentSizedExtVectorType>(Arg)) {
+ if (const DependentSizedExtVectorType *VectorArg =
+ dyn_cast<DependentSizedExtVectorType>(ArgDesug)) {
// We can't check the number of elements, since the argument has a
// dependent number of elements. This can only occur during partial
// ordering.
@@ -2010,9 +2010,9 @@
}
case Type::DependentVector: {
- const auto *VectorParam = cast<DependentVectorType>(Param);
+ const auto *VectorParam = cast<DependentVectorType>(ParDesug);
- if (const auto *VectorArg = dyn_cast<VectorType>(Arg)) {
+ if (const auto *VectorArg = dyn_cast<VectorType>(ArgDesug)) {
// Perform deduction on the element types.
if (Sema::TemplateDeductionResult Result =
DeduceTemplateArgumentsByTypeMatch(
@@ -2036,7 +2036,7 @@
Info, Deduced);
}
- if (const auto *VectorArg = dyn_cast<DependentVectorType>(Arg)) {
+ if (const auto *VectorArg = dyn_cast<DependentVectorType>(ArgDesug)) {
// Perform deduction on the element types.
if (Sema::TemplateDeductionResult Result =
DeduceTemplateArgumentsByTypeMatch(
@@ -2061,10 +2061,10 @@
//
// T __attribute__(((ext_vector_type(N))))
case Type::DependentSizedExtVector: {
- const DependentSizedExtVectorType *VectorParam
- = cast<DependentSizedExtVectorType>(Param);
+ const DependentSizedExtVectorType *VectorParam =
+ cast<DependentSizedExtVectorType>(ParDesug);
- if (const ExtVectorType *VectorArg = dyn_cast<ExtVectorType>(Arg)) {
+ if (const ExtVectorType *VectorArg = dyn_cast<ExtVectorType>(ArgDesug)) {
// Perform deduction on the element types.
if (Sema::TemplateDeductionResult Result
= DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
@@ -2089,8 +2089,8 @@
Deduced);
}
- if (const DependentSizedExtVectorType *VectorArg
- = dyn_cast<DependentSizedExtVectorType>(Arg)) {
+ if (const DependentSizedExtVectorType *VectorArg =
+ dyn_cast<DependentSizedExtVectorType>(ArgDesug)) {
// Perform deduction on the element types.
if (Sema::TemplateDeductionResult Result
= DeduceTemplateArgumentsByTypeMatch(S, TemplateParams,
@@ -2118,11 +2118,13 @@
// T __attribute__((matrix_type(<integral constant>,
// <integral constant>)))
case Type::ConstantMatrix: {
- const ConstantMatrixType *MatrixArg = dyn_cast<ConstantMatrixType>(Arg);
+ const ConstantMatrixType *MatrixArg =
+ dyn_cast<ConstantMatrixType>(ArgDesug);
if (!MatrixArg)
return Sema::TDK_NonDeducedMismatch;
- const ConstantMatrixType *MatrixParam = cast<ConstantMatrixType>(Param);
+ const ConstantMatrixType *MatrixParam =
+ cast<ConstantMatrixType>(ParDesug);
// Check that the dimensions are the same
if (MatrixParam->getNumRows() != MatrixArg->getNumRows() ||
MatrixParam->getNumColumns() != MatrixArg->getNumColumns()) {
@@ -2135,13 +2137,13 @@
}
case Type::DependentSizedMatrix: {
- const MatrixType *MatrixArg = dyn_cast<MatrixType>(Arg);
+ const MatrixType *MatrixArg = dyn_cast<MatrixType>(ArgDesug);
if (!MatrixArg)
return Sema::TDK_NonDeducedMismatch;
// Check the element type of the matrixes.
const DependentSizedMatrixType *MatrixParam =
- cast<DependentSizedMatrixType>(Param);
+ cast<DependentSizedMatrixType>(ParDesug);
if (Sema::TemplateDeductionResult Result =
DeduceTemplateArgumentsByTypeMatch(
S, TemplateParams, MatrixParam->getElementType(),
@@ -2212,10 +2214,10 @@
// T __attribute__(((address_space(N))))
case Type::DependentAddressSpace: {
const DependentAddressSpaceType *AddressSpaceParam =
- cast<DependentAddressSpaceType>(Param);
+ cast<DependentAddressSpaceType>(ParDesug);
if (const DependentAddressSpaceType *AddressSpaceArg =
- dyn_cast<DependentAddressSpaceType>(Arg)) {
+ dyn_cast<DependentAddressSpaceType>(ArgDesug)) {
// Perform deduction on the pointer type.
if (Sema::TemplateDeductionResult Result =
DeduceTemplateArgumentsByTypeMatch(
@@ -2234,16 +2236,17 @@
Deduced);
}
- if (isTargetAddressSpace(Arg.getAddressSpace())) {
+ if (isTargetAddressSpace(ArgDesug.getAddressSpace())) {
llvm::APSInt ArgAddressSpace(S.Context.getTypeSize(S.Context.IntTy),
false);
- ArgAddressSpace = toTargetAddressSpace(Arg.getAddressSpace());
+ ArgAddressSpace = toTargetAddressSpace(ArgDesug.getAddressSpace());
// Perform deduction on the pointer types.
if (Sema::TemplateDeductionResult Result =
DeduceTemplateArgumentsByTypeMatch(
S, TemplateParams, AddressSpaceParam->getPointeeType(),
- S.Context.removeAddrSpaceQualType(Arg), Info, Deduced, TDF))
+ S.Context.removeAddrSpaceQualType(ArgDesug), Info, Deduced,
+ TDF))
return Result;
// Perform deduction on the address space, if we can.
@@ -2260,9 +2263,9 @@
return Sema::TDK_NonDeducedMismatch;
}
case Type::DependentExtInt: {
- const auto *IntParam = cast<DependentExtIntType>(Param);
+ const auto *IntParam = cast<DependentExtIntType>(ParDesug);
- if (const auto *IntArg = dyn_cast<ExtIntType>(Arg)){
+ if (const auto *IntArg = dyn_cast<ExtIntType>(ArgDesug)) {
if (IntParam->isUnsigned() != IntArg->isUnsigned())
return Sema::TDK_NonDeducedMismatch;
@@ -2279,7 +2282,7 @@
Deduced);
}
- if (const auto *IntArg = dyn_cast<DependentExtIntType>(Arg)) {
+ if (const auto *IntArg = dyn_cast<DependentExtIntType>(ArgDesug)) {
if (IntParam->isUnsigned() != IntArg->isUnsigned())
return Sema::TDK_NonDeducedMismatch;
return Sema::TDK_Success;
@@ -2300,7 +2303,7 @@
case Type::Pipe:
// No template argument deduction for these types
return Sema::TDK_Success;
- }
+ }
llvm_unreachable("Invalid Type Class!");
}
@@ -2366,43 +2369,40 @@
if (Arg.getKind() == TemplateArgument::Integral) {
if (hasSameExtendedValue(Param.getAsIntegral(), Arg.getAsIntegral()))
return Sema::TDK_Success;
-
- Info.FirstArg = Param;
- Info.SecondArg = Arg;
- return Sema::TDK_NonDeducedMismatch;
- }
-
- if (Arg.getKind() == TemplateArgument::Expression) {
- Info.FirstArg = Param;
- Info.SecondArg = Arg;
- return Sema::TDK_NonDeducedMismatch;
}
-
Info.FirstArg = Param;
Info.SecondArg = Arg;
return Sema::TDK_NonDeducedMismatch;
- case TemplateArgument::Expression:
+ case TemplateArgument::Expression: {
+ auto *E = Param.getAsExpr();
+ if (!E->isValueDependent()) {
+ if (const auto Int = E->getIntegerConstantExpr(S.Context)) {
+ if (Arg.getKind() == TemplateArgument::Integral) {
+ if (hasSameExtendedValue(*Int, Arg.getAsIntegral()))
+ return Sema::TDK_Success;
+ }
+ Info.FirstArg = Param;
+ Info.SecondArg = Arg;
+ return Sema::TDK_NonDeducedMismatch;
+ }
+ }
if (const NonTypeTemplateParmDecl *NTTP =
- getDeducedParameterFromExpr(Info, Param.getAsExpr())) {
+ getDeducedParameterFromExpr(Info, E)) {
if (Arg.getKind() == TemplateArgument::Integral)
- return DeduceNonTypeTemplateArgument(S, TemplateParams, NTTP,
- Arg.getAsIntegral(),
- Arg.getIntegralType(),
- /*ArrayBound=*/false,
- Info, Deduced);
+ return DeduceNonTypeTemplateArgument(
+ S, TemplateParams, NTTP, Arg.getAsIntegral(), Arg.getIntegralType(),
+ /*ArrayBound=*/false, Info, Deduced);
if (Arg.getKind() == TemplateArgument::NullPtr)
- return DeduceNullPtrTemplateArgument(S, TemplateParams, NTTP,
- Arg.getNullPtrType(),
- Info, Deduced);
+ return DeduceNullPtrTemplateArgument(
+ S, TemplateParams, NTTP, Arg.getNullPtrType(), Info, Deduced);
if (Arg.getKind() == TemplateArgument::Expression)
return DeduceNonTypeTemplateArgument(S, TemplateParams, NTTP,
Arg.getAsExpr(), Info, Deduced);
if (Arg.getKind() == TemplateArgument::Declaration)
- return DeduceNonTypeTemplateArgument(S, TemplateParams, NTTP,
- Arg.getAsDecl(),
- Arg.getParamTypeForDecl(),
- Info, Deduced);
+ return DeduceNonTypeTemplateArgument(
+ S, TemplateParams, NTTP, Arg.getAsDecl(), Arg.getParamTypeForDecl(),
+ Info, Deduced);
Info.FirstArg = Param;
Info.SecondArg = Arg;
@@ -2411,7 +2411,7 @@
// Can't deduce anything, but that's okay.
return Sema::TDK_Success;
-
+ }
case TemplateArgument::Pack:
llvm_unreachable("Argument packs should be expanded by the caller!");
}
@@ -4358,7 +4358,7 @@
bool HasDeducedReturnType = false;
if (getLangOpts().CPlusPlus14 && IsAddressOfFunction &&
Function->getReturnType()->getContainedAutoType()) {
- FunctionType = SubstAutoType(FunctionType, Context.DependentTy);
+ FunctionType = SubstAutoTypeDependent(FunctionType);
HasDeducedReturnType = true;
}
@@ -4792,12 +4792,8 @@
ExprResult ER = CheckPlaceholderExpr(Init);
if (ER.isInvalid())
return DAR_FailedAlreadyDiagnosed;
- Init = ER.get();
- QualType Deduced = BuildDecltypeType(Init, Init->getBeginLoc(), false);
- if (Deduced.isNull())
- return DAR_FailedAlreadyDiagnosed;
- // FIXME: Support a non-canonical deduced type for 'auto'.
- Deduced = Context.getCanonicalType(Deduced);
+ QualType Deduced = getDecltypeForExpr(ER.get());
+ assert(!Deduced.isNull());
if (AT->isConstrained() && !IgnoreConstraints) {
auto ConstraintsResult =
CheckDeducedPlaceholderConstraints(*this, *AT,
@@ -4832,7 +4828,7 @@
Context, Loc, Loc, TemplParamPtr, Loc, nullptr);
QualType FuncParam =
- SubstituteDeducedTypeTransform(*this, TemplArg, /*UseTypeSugar*/false)
+ SubstituteDeducedTypeTransform(*this, TemplArg, /*UseTypeSugar*/ true)
.Apply(Type);
assert(!FuncParam.isNull() &&
"substituting template parameter for 'auto' failed");
@@ -4946,27 +4942,29 @@
QualType Sema::SubstAutoType(QualType TypeWithAuto,
QualType TypeToReplaceAuto) {
- if (TypeToReplaceAuto->isDependentType())
- return SubstituteDeducedTypeTransform(
- *this, DependentAuto{
- TypeToReplaceAuto->containsUnexpandedParameterPack()})
- .TransformType(TypeWithAuto);
+ assert(TypeToReplaceAuto != Context.DependentTy);
return SubstituteDeducedTypeTransform(*this, TypeToReplaceAuto)
.TransformType(TypeWithAuto);
}
TypeSourceInfo *Sema::SubstAutoTypeSourceInfo(TypeSourceInfo *TypeWithAuto,
QualType TypeToReplaceAuto) {
- if (TypeToReplaceAuto->isDependentType())
- return SubstituteDeducedTypeTransform(
- *this,
- DependentAuto{
- TypeToReplaceAuto->containsUnexpandedParameterPack()})
- .TransformType(TypeWithAuto);
+ assert(TypeToReplaceAuto != Context.DependentTy);
return SubstituteDeducedTypeTransform(*this, TypeToReplaceAuto)
.TransformType(TypeWithAuto);
}
+QualType Sema::SubstAutoTypeDependent(QualType TypeWithAuto) {
+ return SubstituteDeducedTypeTransform(*this, DependentAuto{false})
+ .TransformType(TypeWithAuto);
+}
+
+TypeSourceInfo *
+Sema::SubstAutoTypeSourceInfoDependent(TypeSourceInfo *TypeWithAuto) {
+ return SubstituteDeducedTypeTransform(*this, DependentAuto{false})
+ .TransformType(TypeWithAuto);
+}
+
QualType Sema::ReplaceAutoType(QualType TypeWithAuto,
QualType TypeToReplaceAuto) {
return SubstituteDeducedTypeTransform(*this, TypeToReplaceAuto,
@@ -5161,6 +5159,10 @@
Args2.resize(NumComparedArguments);
if (Reversed)
std::reverse(Args2.begin(), Args2.end());
+
+ auto TF = [&S](QualType T) { return S.Context.getCanonicalType(T); };
+ llvm::transform(Args1, Args1.begin(), TF);
+ llvm::transform(Args2, Args2.begin(), TF);
if (DeduceTemplateArguments(S, TemplateParams, Args2.data(), Args2.size(),
Args1.data(), Args1.size(), Info, Deduced,
TDF_None, /*PartialOrdering=*/true))
Index: clang/lib/Sema/SemaTemplate.cpp
===================================================================
--- clang/lib/Sema/SemaTemplate.cpp
+++ clang/lib/Sema/SemaTemplate.cpp
@@ -1260,15 +1260,15 @@
BuildDeclRefExpr(NTTP, NTTP->getType(), VK_PRValue, NTTP->getLocation());
if (!Ref)
return true;
- ExprResult ImmediatelyDeclaredConstraint =
- formImmediatelyDeclaredConstraint(
- *this, TL.getNestedNameSpecifierLoc(), TL.getConceptNameInfo(),
- TL.getNamedConcept(), TL.getLAngleLoc(), TL.getRAngleLoc(),
- BuildDecltypeType(Ref, NTTP->getLocation()), NTTP->getLocation(),
- [&] (TemplateArgumentListInfo &ConstraintArgs) {
- for (unsigned I = 0, C = TL.getNumArgs(); I != C; ++I)
- ConstraintArgs.addArgument(TL.getArgLoc(I));
- }, EllipsisLoc);
+ ExprResult ImmediatelyDeclaredConstraint = formImmediatelyDeclaredConstraint(
+ *this, TL.getNestedNameSpecifierLoc(), TL.getConceptNameInfo(),
+ TL.getNamedConcept(), TL.getLAngleLoc(), TL.getRAngleLoc(),
+ BuildDecltypeType(Ref), NTTP->getLocation(),
+ [&](TemplateArgumentListInfo &ConstraintArgs) {
+ for (unsigned I = 0, C = TL.getNumArgs(); I != C; ++I)
+ ConstraintArgs.addArgument(TL.getArgLoc(I));
+ },
+ EllipsisLoc);
if (ImmediatelyDeclaredConstraint.isInvalid() ||
!ImmediatelyDeclaredConstraint.isUsable())
return true;
@@ -1290,7 +1290,7 @@
// - an identifier associated by name lookup with a non-type
// template-parameter declared with a type that contains a
// placeholder type (7.1.7.4),
- TSI = SubstAutoTypeSourceInfo(TSI, Context.DependentTy);
+ TSI = SubstAutoTypeSourceInfoDependent(TSI);
}
return CheckNonTypeTemplateParameterType(TSI->getType(), Loc);
@@ -10888,7 +10888,7 @@
// - an identifier associated by name lookup with a non-type
// template-parameter declared with a type that contains a
// placeholder type (7.1.7.4),
- NewTSI = SubstAutoTypeSourceInfo(NewTSI, Context.DependentTy);
+ NewTSI = SubstAutoTypeSourceInfoDependent(NewTSI);
}
if (NewTSI != NTTP->getTypeSourceInfo()) {
Index: clang/lib/Sema/SemaStmt.cpp
===================================================================
--- clang/lib/Sema/SemaStmt.cpp
+++ clang/lib/Sema/SemaStmt.cpp
@@ -2729,7 +2729,7 @@
if (auto *DD = dyn_cast<DecompositionDecl>(LoopVar))
for (auto *Binding : DD->bindings())
Binding->setType(Context.DependentTy);
- LoopVar->setType(SubstAutoType(LoopVar->getType(), Context.DependentTy));
+ LoopVar->setType(SubstAutoTypeDependent(LoopVar->getType()));
}
} else if (!BeginDeclStmt.get()) {
SourceLocation RangeLoc = RangeVar->getLocation();
Index: clang/lib/Sema/SemaLambda.cpp
===================================================================
--- clang/lib/Sema/SemaLambda.cpp
+++ clang/lib/Sema/SemaLambda.cpp
@@ -373,7 +373,7 @@
const FunctionProtoType *FPT = MethodType->castAs<FunctionProtoType>();
QualType Result = FPT->getReturnType();
if (Result->isUndeducedType()) {
- Result = SubstAutoType(Result, Context.DependentTy);
+ Result = SubstAutoTypeDependent(Result);
MethodType = Context.getFunctionType(Result, FPT->getParamTypes(),
FPT->getExtProtoInfo());
}
Index: clang/lib/Sema/SemaInit.cpp
===================================================================
--- clang/lib/Sema/SemaInit.cpp
+++ clang/lib/Sema/SemaInit.cpp
@@ -9969,7 +9969,7 @@
auto TemplateName = DeducedTST->getTemplateName();
if (TemplateName.isDependent())
- return SubstAutoType(TSInfo->getType(), Context.DependentTy);
+ return SubstAutoTypeDependent(TSInfo->getType());
// We can only perform deduction for class templates.
auto *Template =
@@ -9988,7 +9988,7 @@
Diag(TSInfo->getTypeLoc().getBeginLoc(),
diag::warn_cxx14_compat_class_template_argument_deduction)
<< TSInfo->getTypeLoc().getSourceRange() << 0;
- return SubstAutoType(TSInfo->getType(), Context.DependentTy);
+ return SubstAutoTypeDependent(TSInfo->getType());
}
// FIXME: Perform "exact type" matching first, per CWG discussion?
Index: clang/lib/Sema/SemaExprCXX.cpp
===================================================================
--- clang/lib/Sema/SemaExprCXX.cpp
+++ clang/lib/Sema/SemaExprCXX.cpp
@@ -468,7 +468,7 @@
assert(DS.getTypeSpecType() == DeclSpec::TST_decltype &&
"unexpected type in getDestructorType");
- QualType T = BuildDecltypeType(DS.getRepAsExpr(), DS.getTypeSpecTypeLoc());
+ QualType T = BuildDecltypeType(DS.getRepAsExpr());
// If we know the type of the object, check that the correct destructor
// type was named now; we can give better diagnostics this way.
@@ -7727,8 +7727,7 @@
return true;
}
- QualType T = BuildDecltypeType(DS.getRepAsExpr(), DS.getTypeSpecTypeLoc(),
- false);
+ QualType T = BuildDecltypeType(DS.getRepAsExpr(), /*AsUnevaluated=*/false);
TypeLocBuilder TLB;
DecltypeTypeLoc DecltypeTL = TLB.push<DecltypeTypeLoc>(T);
Index: clang/lib/Sema/SemaDeclCXX.cpp
===================================================================
--- clang/lib/Sema/SemaDeclCXX.cpp
+++ clang/lib/Sema/SemaDeclCXX.cpp
@@ -4215,7 +4215,7 @@
if (BaseType.isNull())
return true;
} else if (DS.getTypeSpecType() == TST_decltype) {
- BaseType = BuildDecltypeType(DS.getRepAsExpr(), DS.getTypeSpecTypeLoc());
+ BaseType = BuildDecltypeType(DS.getRepAsExpr());
} else if (DS.getTypeSpecType() == TST_decltype_auto) {
Diag(DS.getTypeSpecTypeLoc(), diag::err_decltype_auto_invalid);
return true;
Index: clang/lib/Sema/SemaDecl.cpp
===================================================================
--- clang/lib/Sema/SemaDecl.cpp
+++ clang/lib/Sema/SemaDecl.cpp
@@ -3608,14 +3608,14 @@
// defined, copy the deduced value from the old declaration.
AutoType *OldAT = Old->getReturnType()->getContainedAutoType();
if (OldAT && OldAT->isDeduced()) {
- New->setType(
- SubstAutoType(New->getType(),
- OldAT->isDependentType() ? Context.DependentTy
- : OldAT->getDeducedType()));
- NewQType = Context.getCanonicalType(
- SubstAutoType(NewQType,
- OldAT->isDependentType() ? Context.DependentTy
- : OldAT->getDeducedType()));
+ QualType DT = OldAT->getDeducedType();
+ if (DT.isNull()) {
+ New->setType(SubstAutoTypeDependent(New->getType()));
+ NewQType = Context.getCanonicalType(SubstAutoTypeDependent(NewQType));
+ } else {
+ New->setType(SubstAutoType(New->getType(), DT));
+ NewQType = Context.getCanonicalType(SubstAutoType(NewQType, DT));
+ }
}
}
@@ -9252,8 +9252,7 @@
// a friend yet, so 'isDependentContext' on the FD doesn't work.
const FunctionProtoType *FPT =
NewFD->getType()->castAs<FunctionProtoType>();
- QualType Result =
- SubstAutoType(FPT->getReturnType(), Context.DependentTy);
+ QualType Result = SubstAutoTypeDependent(FPT->getReturnType());
NewFD->setType(Context.getFunctionType(Result, FPT->getParamTypes(),
FPT->getExtProtoInfo()));
}
@@ -12347,7 +12346,7 @@
/*TreatUnavailableAsInvalid=*/false);
ExprResult Result = InitSeq.Perform(*this, Entity, Kind, Args, &DclT);
if (Result.isInvalid()) {
- // If the provied initializer fails to initialize the var decl,
+ // If the provided initializer fails to initialize the var decl,
// we attach a recovery expr for better recovery.
auto RecoveryExpr =
CreateRecoveryExpr(Init->getBeginLoc(), Init->getEndLoc(), Args);
Index: clang/lib/Sema/SemaCXXScopeSpec.cpp
===================================================================
--- clang/lib/Sema/SemaCXXScopeSpec.cpp
+++ clang/lib/Sema/SemaCXXScopeSpec.cpp
@@ -865,7 +865,7 @@
assert(DS.getTypeSpecType() == DeclSpec::TST_decltype);
- QualType T = BuildDecltypeType(DS.getRepAsExpr(), DS.getTypeSpecTypeLoc());
+ QualType T = BuildDecltypeType(DS.getRepAsExpr());
if (T.isNull())
return true;
Index: clang/lib/AST/Type.cpp
===================================================================
--- clang/lib/AST/Type.cpp
+++ clang/lib/AST/Type.cpp
@@ -4394,10 +4394,10 @@
}
AutoType::AutoType(QualType DeducedAsType, AutoTypeKeyword Keyword,
- TypeDependence ExtraDependence,
+ TypeDependence ExtraDependence, QualType Canon,
ConceptDecl *TypeConstraintConcept,
ArrayRef<TemplateArgument> TypeConstraintArgs)
- : DeducedType(Auto, DeducedAsType, ExtraDependence) {
+ : DeducedType(Auto, DeducedAsType, ExtraDependence, Canon) {
AutoTypeBits.Keyword = (unsigned)Keyword;
AutoTypeBits.NumArgs = TypeConstraintArgs.size();
this->TypeConstraintConcept = TypeConstraintConcept;
Index: clang/lib/AST/ASTImporter.cpp
===================================================================
--- clang/lib/AST/ASTImporter.cpp
+++ clang/lib/AST/ASTImporter.cpp
@@ -1644,36 +1644,48 @@
return Importer.getToContext().getObjCObjectPointerType(*ToPointeeTypeOrErr);
}
+static Error checkCycle(ASTImporter &Importer, const RecordDecl *RD,
+ QualType QT) {
+ const Type *LeafT = QT.getCanonicalType().getTypePtr();
+ while (LeafT->isPointerType() || LeafT->isArrayType())
+ LeafT = LeafT->getPointeeOrArrayElementType();
+
+ const auto *RT = dyn_cast<RecordType>(LeafT);
+ if (!RT)
+ return Error::success();
+
+ for (const DeclContext *DC = RT->getDecl(); DC; DC = DC->getParent())
+ if (DC == RD) {
+ Importer.FromDiag(RD->getLocation(), diag::err_unsupported_ast_node)
+ << RD->Decl::getDeclKindName();
+ return make_error<ImportError>(ImportError::UnsupportedConstruct);
+ }
+ return Error::success();
+}
+
//----------------------------------------------------------------------------
// Import Declarations
//----------------------------------------------------------------------------
Error ASTNodeImporter::ImportDeclParts(
NamedDecl *D, DeclContext *&DC, DeclContext *&LexicalDC,
DeclarationName &Name, NamedDecl *&ToD, SourceLocation &Loc) {
- // Check if RecordDecl is in FunctionDecl parameters to avoid infinite loop.
- // example: int struct_in_proto(struct data_t{int a;int b;} *d);
+ // Check if FunctionDecl return / parameters are in the RecordDecl context,
+ // in order to avoid an infinite loop.
+ // Example: int struct_in_proto(struct data_t{int a;int b;} *d);
+ // Example: auto struct_in_body() { struct X {}; return X(); }
// FIXME: We could support these constructs by importing a different type of
- // this parameter and by importing the original type of the parameter only
+ // this return / parameter and then importing that original type only
// after the FunctionDecl is created. See
// VisitFunctionDecl::UsedDifferentProtoType.
- DeclContext *OrigDC = D->getDeclContext();
- FunctionDecl *FunDecl;
- if (isa<RecordDecl>(D) && (FunDecl = dyn_cast<FunctionDecl>(OrigDC)) &&
- FunDecl->hasBody()) {
- auto getLeafPointeeType = [](const Type *T) {
- while (T->isPointerType() || T->isArrayType()) {
- T = T->getPointeeOrArrayElementType();
- }
- return T;
- };
- for (const ParmVarDecl *P : FunDecl->parameters()) {
- const Type *LeafT =
- getLeafPointeeType(P->getType().getCanonicalType().getTypePtr());
- auto *RT = dyn_cast<RecordType>(LeafT);
- if (RT && RT->getDecl() == D) {
- Importer.FromDiag(D->getLocation(), diag::err_unsupported_ast_node)
- << D->getDeclKindName();
- return make_error<ImportError>(ImportError::UnsupportedConstruct);
+ {
+ const auto *FD = dyn_cast<FunctionDecl>(D->getDeclContext());
+ const auto *RD = dyn_cast<RecordDecl>(D);
+ if (RD && FD && FD->hasBody()) {
+ if (Error Err = checkCycle(Importer, RD, FD->getReturnType()))
+ return Err;
+ for (const ParmVarDecl *P : FD->parameters()) {
+ if (Error Err = checkCycle(Importer, RD, P->getType()))
+ return Err;
}
}
}
Index: clang/lib/AST/ASTContext.cpp
===================================================================
--- clang/lib/AST/ASTContext.cpp
+++ clang/lib/AST/ASTContext.cpp
@@ -4817,6 +4817,23 @@
return QualType(Spec, 0);
}
+static bool
+getCanonicalTemplateArguments(const ASTContext &C,
+ ArrayRef<TemplateArgument> OrigArgs,
+ SmallVectorImpl<TemplateArgument> &CanonArgs) {
+ bool AnyNonCanonArgs = false;
+ unsigned NumArgs = OrigArgs.size();
+ CanonArgs.resize(NumArgs);
+ for (unsigned I = 0; I != NumArgs; ++I) {
+ const TemplateArgument &OrigArg = OrigArgs[I];
+ TemplateArgument &CanonArg = CanonArgs[I];
+ CanonArg = C.getCanonicalTemplateArgument(OrigArg);
+ if (!CanonArg.structurallyEquals(OrigArg))
+ AnyNonCanonArgs = true;
+ }
+ return AnyNonCanonArgs;
+}
+
QualType ASTContext::getCanonicalTemplateSpecializationType(
TemplateName Template, ArrayRef<TemplateArgument> Args) const {
assert(!Template.getAsDependentTemplateName() &&
@@ -4829,10 +4846,7 @@
// Build the canonical template specialization type.
TemplateName CanonTemplate = getCanonicalTemplateName(Template);
SmallVector<TemplateArgument, 4> CanonArgs;
- unsigned NumArgs = Args.size();
- CanonArgs.reserve(NumArgs);
- for (const TemplateArgument &Arg : Args)
- CanonArgs.push_back(getCanonicalTemplateArgument(Arg));
+ ::getCanonicalTemplateArguments(*this, Args, CanonArgs);
// Determine whether this canonical template specialization type already
// exists.
@@ -4847,7 +4861,7 @@
if (!Spec) {
// Allocate a new canonical template specialization type.
void *Mem = Allocate((sizeof(TemplateSpecializationType) +
- sizeof(TemplateArgument) * NumArgs),
+ sizeof(TemplateArgument) * CanonArgs.size()),
TypeAlignment);
Spec = new (Mem) TemplateSpecializationType(CanonTemplate,
CanonArgs,
@@ -4989,14 +5003,9 @@
ElaboratedTypeKeyword CanonKeyword = Keyword;
if (Keyword == ETK_None) CanonKeyword = ETK_Typename;
- bool AnyNonCanonArgs = false;
- unsigned NumArgs = Args.size();
- SmallVector<TemplateArgument, 16> CanonArgs(NumArgs);
- for (unsigned I = 0; I != NumArgs; ++I) {
- CanonArgs[I] = getCanonicalTemplateArgument(Args[I]);
- if (!CanonArgs[I].structurallyEquals(Args[I]))
- AnyNonCanonArgs = true;
- }
+ SmallVector<TemplateArgument, 16> CanonArgs;
+ bool AnyNonCanonArgs =
+ ::getCanonicalTemplateArguments(*this, Args, CanonArgs);
QualType Canon;
if (AnyNonCanonArgs || CanonNNS != NNS || CanonKeyword != Keyword) {
@@ -5009,7 +5018,7 @@
}
void *Mem = Allocate((sizeof(DependentTemplateSpecializationType) +
- sizeof(TemplateArgument) * NumArgs),
+ sizeof(TemplateArgument) * Args.size()),
TypeAlignment);
T = new (Mem) DependentTemplateSpecializationType(Keyword, NNS,
Name, Args, Canon);
@@ -5594,15 +5603,10 @@
return QualType(ut, 0);
}
-/// getAutoType - Return the uniqued reference to the 'auto' type which has been
-/// deduced to the given type, or to the canonical undeduced 'auto' type, or the
-/// canonical deduced-but-dependent 'auto' type.
-QualType
-ASTContext::getAutoType(QualType DeducedType, AutoTypeKeyword Keyword,
- bool IsDependent, bool IsPack,
- ConceptDecl *TypeConstraintConcept,
- ArrayRef<TemplateArgument> TypeConstraintArgs) const {
- assert((!IsPack || IsDependent) && "only use IsPack for a dependent pack");
+QualType ASTContext::getAutoTypeInternal(
+ QualType DeducedType, AutoTypeKeyword Keyword, bool IsDependent,
+ bool IsPack, ConceptDecl *TypeConstraintConcept,
+ ArrayRef<TemplateArgument> TypeConstraintArgs, bool IsCanon) const {
if (DeducedType.isNull() && Keyword == AutoTypeKeyword::Auto &&
!TypeConstraintConcept && !IsDependent)
return getAutoDeductType();
@@ -5615,21 +5619,52 @@
if (AutoType *AT = AutoTypes.FindNodeOrInsertPos(ID, InsertPos))
return QualType(AT, 0);
+ QualType Canon;
+ if (!IsCanon) {
+ if (DeducedType.isNull()) {
+ SmallVector<TemplateArgument, 4> CanonArgs;
+ bool AnyNonCanonArgs =
+ ::getCanonicalTemplateArguments(*this, TypeConstraintArgs, CanonArgs);
+ if (AnyNonCanonArgs) {
+ Canon = getAutoTypeInternal(QualType(), Keyword, IsDependent, IsPack,
+ TypeConstraintConcept, CanonArgs, true);
+ // Find the insert position again.
+ AutoTypes.FindNodeOrInsertPos(ID, InsertPos);
+ }
+ } else {
+ Canon = DeducedType.getCanonicalType();
+ }
+ }
+
void *Mem = Allocate(sizeof(AutoType) +
- sizeof(TemplateArgument) * TypeConstraintArgs.size(),
+ sizeof(TemplateArgument) * TypeConstraintArgs.size(),
TypeAlignment);
auto *AT = new (Mem) AutoType(
DeducedType, Keyword,
(IsDependent ? TypeDependence::DependentInstantiation
: TypeDependence::None) |
(IsPack ? TypeDependence::UnexpandedPack : TypeDependence::None),
- TypeConstraintConcept, TypeConstraintArgs);
+ Canon, TypeConstraintConcept, TypeConstraintArgs);
Types.push_back(AT);
- if (InsertPos)
- AutoTypes.InsertNode(AT, InsertPos);
+ AutoTypes.InsertNode(AT, InsertPos);
return QualType(AT, 0);
}
+/// getAutoType - Return the uniqued reference to the 'auto' type which has been
+/// deduced to the given type, or to the canonical undeduced 'auto' type, or the
+/// canonical deduced-but-dependent 'auto' type.
+QualType
+ASTContext::getAutoType(QualType DeducedType, AutoTypeKeyword Keyword,
+ bool IsDependent, bool IsPack,
+ ConceptDecl *TypeConstraintConcept,
+ ArrayRef<TemplateArgument> TypeConstraintArgs) const {
+ assert((!IsPack || IsDependent) && "only use IsPack for a dependent pack");
+ assert((!IsDependent || DeducedType.isNull()) &&
+ "A dependent auto should be undeduced");
+ return getAutoTypeInternal(DeducedType, Keyword, IsDependent, IsPack,
+ TypeConstraintConcept, TypeConstraintArgs);
+}
+
/// Return the uniqued reference to the deduced template specialization type
/// which has been deduced to the given type, or to the canonical undeduced
/// such type, or the canonical deduced-but-dependent such type.
@@ -5647,8 +5682,7 @@
auto *DTST = new (*this, TypeAlignment)
DeducedTemplateSpecializationType(Template, DeducedType, IsDependent);
Types.push_back(DTST);
- if (InsertPos)
- DeducedTemplateSpecializationTypes.InsertNode(DTST, InsertPos);
+ DeducedTemplateSpecializationTypes.InsertNode(DTST, InsertPos);
return QualType(DTST, 0);
}
@@ -5685,7 +5719,7 @@
if (AutoDeductTy.isNull())
AutoDeductTy = QualType(new (*this, TypeAlignment)
AutoType(QualType(), AutoTypeKeyword::Auto,
- TypeDependence::None,
+ TypeDependence::None, QualType(),
/*concept*/ nullptr, /*args*/ {}),
0);
return AutoDeductTy;
Index: clang/include/clang/Sema/Sema.h
===================================================================
--- clang/include/clang/Sema/Sema.h
+++ clang/include/clang/Sema/Sema.h
@@ -2348,11 +2348,13 @@
const CXXScopeSpec &SS, QualType T,
TagDecl *OwnedTagDecl = nullptr);
- QualType BuildTypeofExprType(Expr *E, SourceLocation Loc);
+ // Returns the underlying type of a decltype with the given expression.
+ QualType getDecltypeForExpr(Expr *E);
+
+ QualType BuildTypeofExprType(Expr *E);
/// If AsUnevaluated is false, E is treated as though it were an evaluated
/// context, such as when building a type for decltype(auto).
- QualType BuildDecltypeType(Expr *E, SourceLocation Loc,
- bool AsUnevaluated = true);
+ QualType BuildDecltypeType(Expr *E, bool AsUnevaluated = true);
QualType BuildUnaryTransformType(QualType BaseType,
UnaryTransformType::UTTKind UKind,
SourceLocation Loc);
@@ -8552,6 +8554,14 @@
/// Substitute Replacement for auto in TypeWithAuto
TypeSourceInfo* SubstAutoTypeSourceInfo(TypeSourceInfo *TypeWithAuto,
QualType Replacement);
+
+ // Substitute auto in TypeWithAuto for a Dependent auto type
+ QualType SubstAutoTypeDependent(QualType TypeWithAuto);
+
+ // Substitute auto in TypeWithAuto for a Dependent auto type
+ TypeSourceInfo *
+ SubstAutoTypeSourceInfoDependent(TypeSourceInfo *TypeWithAuto);
+
/// Completely replace the \c auto in \p TypeWithAuto by
/// \p Replacement. This does not retain any \c auto type sugar.
QualType ReplaceAutoType(QualType TypeWithAuto, QualType Replacement);
Index: clang/include/clang/AST/Type.h
===================================================================
--- clang/include/clang/AST/Type.h
+++ clang/include/clang/AST/Type.h
@@ -4944,29 +4944,31 @@
/// type-dependent, there is no deduced type and the type is canonical. In
/// the latter case, it is also a dependent type.
class DeducedType : public Type {
+ QualType DeducedAsType;
+
protected:
DeducedType(TypeClass TC, QualType DeducedAsType,
- TypeDependence ExtraDependence)
- : Type(TC,
- // FIXME: Retain the sugared deduced type?
- DeducedAsType.isNull() ? QualType(this, 0)
- : DeducedAsType.getCanonicalType(),
+ TypeDependence ExtraDependence, QualType Canon)
+ : Type(TC, Canon,
ExtraDependence | (DeducedAsType.isNull()
? TypeDependence::None
: DeducedAsType->getDependence() &
- ~TypeDependence::VariablyModified)) {}
+ ~TypeDependence::VariablyModified)),
+ DeducedAsType(DeducedAsType) {}
public:
- bool isSugared() const { return !isCanonicalUnqualified(); }
- QualType desugar() const { return getCanonicalTypeInternal(); }
+ bool isSugared() const { return !DeducedAsType.isNull(); }
+ QualType desugar() const {
+ return isSugared() ? DeducedAsType : QualType(this, 0);
+ }
/// Get the type deduced for this placeholder type, or null if it's
/// either not been deduced or was deduced to a dependent type.
QualType getDeducedType() const {
- return !isCanonicalUnqualified() ? getCanonicalTypeInternal() : QualType();
+ return DeducedAsType.isNull() ? QualType() : DeducedAsType;
}
bool isDeduced() const {
- return !isCanonicalUnqualified() || isDependentType();
+ return !DeducedAsType.isNull() || isDependentType();
}
static bool classof(const Type *T) {
@@ -4983,7 +4985,7 @@
ConceptDecl *TypeConstraintConcept;
AutoType(QualType DeducedAsType, AutoTypeKeyword Keyword,
- TypeDependence ExtraDependence, ConceptDecl *CD,
+ TypeDependence ExtraDependence, QualType Canon, ConceptDecl *CD,
ArrayRef<TemplateArgument> TypeConstraintArgs);
const TemplateArgument *getArgBuffer() const {
@@ -5057,7 +5059,9 @@
toTypeDependence(Template.getDependence()) |
(IsDeducedAsDependent
? TypeDependence::DependentInstantiation
- : TypeDependence::None)),
+ : TypeDependence::None),
+ DeducedAsType.isNull() ? QualType(this, 0)
+ : DeducedAsType.getCanonicalType()),
Template(Template) {}
public:
Index: clang/include/clang/AST/ASTContext.h
===================================================================
--- clang/include/clang/AST/ASTContext.h
+++ clang/include/clang/AST/ASTContext.h
@@ -1525,6 +1525,12 @@
QualType getFunctionTypeInternal(QualType ResultTy, ArrayRef<QualType> Args,
const FunctionProtoType::ExtProtoInfo &EPI,
bool OnlyWantCanonical) const;
+ QualType
+ getAutoTypeInternal(QualType DeducedType, AutoTypeKeyword Keyword,
+ bool IsDependent, bool IsPack = false,
+ ConceptDecl *TypeConstraintConcept = nullptr,
+ ArrayRef<TemplateArgument> TypeConstraintArgs = {},
+ bool IsCanon = false) const;
public:
/// Return the unique reference to the type for the specified type
Index: clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-owning-memory.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-owning-memory.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-owning-memory.cpp
@@ -91,13 +91,9 @@
// FIXME:, flow analysis for the case of reassignment. Value must be released before
owned_int6 = owned_int3; // BAD, because reassignment without resource release
- auto owned_int7 = returns_owner1(); // Bad, since type deduction eliminates the owner wrapper
- // CHECK-NOTES: [[@LINE-1]]:3: warning: initializing non-owner 'int *' with a newly created 'gsl::owner<>'
- // CHECK-NOTES: [[@LINE-2]]:3: note: type deduction did not result in an owner
+ auto owned_int7 = returns_owner1(); // Ok, since type deduction does not eliminate the owner wrapper
- const auto owned_int8 = returns_owner2(); // Bad, since type deduction eliminates the owner wrapper
- // CHECK-NOTES: [[@LINE-1]]:3: warning: initializing non-owner 'int *const' with a newly created 'gsl::owner<>'
- // CHECK-NOTES: [[@LINE-2]]:3: note: type deduction did not result in an owner
+ const auto owned_int8 = returns_owner2(); // Ok, since type deduction does not eliminate the owner wrapper
gsl::owner<int *> owned_int9 = returns_owner1(); // Ok
int *unowned_int3 = returns_owner1(); // Bad
@@ -285,15 +281,12 @@
ClassWithOwner C2{A}; // Bad, since the owner would be initialized with an non-owner, but catched in the class
ClassWithOwner C3{gsl::owner<ArbitraryClass *>(new ArbitraryClass)}; // Ok
- const auto Owner1 = C3.buggy_but_returns_owner(); // BAD, deduces Owner1 to ArbitraryClass *const
- // CHECK-NOTES: [[@LINE-1]]:3: warning: initializing non-owner 'ArbitraryClass *const' with a newly created 'gsl::owner<>'
- // CHECK-NOTES: [[@LINE-2]]:3: note: type deduction did not result in an owner
+ const auto Owner1 = C3.buggy_but_returns_owner(); // Ok, deduces Owner1 to owner<ArbitraryClass *> const
- auto Owner2 = C2.buggy_but_returns_owner(); // BAD, deduces Owner2 to ArbitraryClass *
- // CHECK-NOTES: [[@LINE-1]]:3: warning: initializing non-owner 'ArbitraryClass *' with a newly created 'gsl::owner<>'
- // CHECK-NOTES: [[@LINE-2]]:3: note: type deduction did not result in an owner
+ auto Owner2 = C2.buggy_but_returns_owner(); //Ok, deduces Owner2 to owner<ArbitraryClass *>
- Owner2 = &A; // Ok, since type deduction did NOT result in owner<int*>
+ Owner2 = &A; // BAD, since type deduction resulted in owner<ArbitraryClass *>
+ // CHECK-NOTES: [[@LINE-1]]:3: warning: expected assignment source to be of type 'gsl::owner<>'; got 'ArbitraryClass *'
gsl::owner<ArbitraryClass *> Owner3 = C1.buggy_but_returns_owner(); // Ok, still an owner
Owner3 = &A; // Bad, since assignment of non-owner to owner
Index: clang-tools-extra/test/clang-tidy/checkers/cert-static-object-exception.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/cert-static-object-exception.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/cert-static-object-exception.cpp
@@ -256,7 +256,7 @@
return []{ S s; return s; };
}
};
-auto Okay4 = []{ U u; return u.getBadLambda(); }();
+auto Okay4 = []() noexcept { U u; return u.getBadLambda(); }();
auto NotOkay3 = []() noexcept { U u; return u.getBadLambda(); }()(); // Because the lambda returned and called is not noexcept
// CHECK-EXCEPTIONS: :[[@LINE-1]]:6: warning: initialization of 'NotOkay3' with static storage duration may throw an exception that cannot be caught [cert-err58-cpp]
// CHECK-EXCEPTIONS: :[[@LINE-6]]:12: note: possibly throwing function declared here
@@ -272,4 +272,8 @@
// FIXME: the above should be diagnosed because the capture init can trigger
// an exception when constructing the Bad object.
#endif // NONEXCEPTIONS
+
+auto NotOkay5 = []() { U u; return u.getBadLambda(); }();
+// CHECK-EXCEPTIONS: :[[@LINE-1]]:6: warning: initialization of 'NotOkay5' with static storage duration may throw an exception that cannot be caught [cert-err58-cpp]
+// CHECK-EXCEPTIONS: :[[@LINE-2]]:17: note: possibly throwing function declared here
}
Index: clang-tools-extra/clangd/unittests/tweaks/ExpandAutoTypeTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/tweaks/ExpandAutoTypeTests.cpp
+++ clang-tools-extra/clangd/unittests/tweaks/ExpandAutoTypeTests.cpp
@@ -57,7 +57,7 @@
EXPECT_UNAVAILABLE("au^to x = []{};");
// inline namespaces
EXPECT_EQ(apply("au^to x = inl_ns::Visible();"),
- "Visible x = inl_ns::Visible();");
+ "inl_ns::Visible x = inl_ns::Visible();");
// local class
EXPECT_EQ(apply("namespace x { void y() { struct S{}; ^auto z = S(); } }"),
"namespace x { void y() { struct S{}; S z = S(); } }");
@@ -67,8 +67,9 @@
EXPECT_EQ(apply("ns::Class * foo() { au^to c = foo(); }"),
"ns::Class * foo() { ns::Class * c = foo(); }");
- EXPECT_EQ(apply("void ns::Func() { au^to x = new ns::Class::Nested{}; }"),
- "void ns::Func() { Class::Nested * x = new ns::Class::Nested{}; }");
+ EXPECT_EQ(
+ apply("void ns::Func() { au^to x = new ns::Class::Nested{}; }"),
+ "void ns::Func() { ns::Class::Nested * x = new ns::Class::Nested{}; }");
EXPECT_UNAVAILABLE("dec^ltype(au^to) x = 10;");
// expanding types in structured bindings is syntactically invalid.
Index: clang-tools-extra/clangd/unittests/InlayHintTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/InlayHintTests.cpp
+++ clang-tools-extra/clangd/unittests/InlayHintTests.cpp
@@ -466,7 +466,8 @@
}
}
)cpp",
- ExpectedHint{": S1", "x"}, ExpectedHint{": Inner<int>", "y"});
+ ExpectedHint{": S1", "x"},
+ ExpectedHint{": S2::Inner<int>", "y"});
}
TEST(TypeHints, Lambda) {
Index: clang-tools-extra/clangd/unittests/HoverTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/HoverTests.cpp
+++ clang-tools-extra/clangd/unittests/HoverTests.cpp
@@ -461,7 +461,7 @@
[](HoverInfo &HI) {
HI.Name = "auto";
HI.Kind = index::SymbolKind::TypeAlias;
- HI.Definition = "class Foo<int>";
+ HI.Definition = "Foo<int>";
}},
// auto on specialized template
{R"cpp(
@@ -474,7 +474,7 @@
[](HoverInfo &HI) {
HI.Name = "auto";
HI.Kind = index::SymbolKind::TypeAlias;
- HI.Definition = "class Foo<int>";
+ HI.Definition = "Foo<int>";
}},
// macro
@@ -648,7 +648,7 @@
[](HoverInfo &HI) {
HI.Name = "auto";
HI.Kind = index::SymbolKind::TypeAlias;
- HI.Definition = "class Foo<X>";
+ HI.Definition = "Foo<X>";
}},
{// Falls back to primary template, when the type is not instantiated.
R"cpp(
@@ -2024,7 +2024,7 @@
[](HoverInfo &HI) {
HI.Name = "auto";
HI.Kind = index::SymbolKind::TypeAlias;
- HI.Definition = "int";
+ HI.Definition = "int_type";
}},
{
R"cpp(// auto on alias
@@ -2035,7 +2035,7 @@
[](HoverInfo &HI) {
HI.Name = "auto";
HI.Kind = index::SymbolKind::TypeAlias;
- HI.Definition = "struct cls";
+ HI.Definition = "cls_type";
HI.Documentation = "auto on alias";
}},
{
@@ -2047,7 +2047,7 @@
[](HoverInfo &HI) {
HI.Name = "auto";
HI.Kind = index::SymbolKind::TypeAlias;
- HI.Definition = "struct templ<int>";
+ HI.Definition = "templ<int>";
HI.Documentation = "auto on alias";
}},
{
Index: clang-tools-extra/clangd/unittests/ASTTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/ASTTests.cpp
+++ clang-tools-extra/clangd/unittests/ASTTests.cpp
@@ -43,7 +43,7 @@
namespace ns1 { struct S {}; }
^auto v = ns1::S{};
)cpp",
- "struct ns1::S",
+ "ns1::S",
},
{
R"cpp( // decltype on struct
@@ -63,7 +63,7 @@
ns1::S& j = i;
^decltype(auto) k = j;
)cpp",
- "struct ns1::S &",
+ "ns1::S &",
},
{
R"cpp( // auto on template class
@@ -71,7 +71,7 @@
template<typename T> class Foo {};
^auto v = Foo<X>();
)cpp",
- "class Foo<class X>",
+ "Foo<class X>",
},
{
R"cpp( // auto on initializer list.
@@ -177,8 +177,8 @@
using Bar = Foo;
^auto x = Bar();
)cpp",
- // FIXME: it'd be nice if this resolved to the alias instead
- "struct Foo",
+ // It's so nice that this is resolved to the alias instead :-D
+ "Bar",
},
};
for (Test T : Tests) {
Index: clang-tools-extra/clangd/FindTarget.cpp
===================================================================
--- clang-tools-extra/clangd/FindTarget.cpp
+++ clang-tools-extra/clangd/FindTarget.cpp
@@ -374,7 +374,7 @@
void VisitDeducedType(const DeducedType *DT) {
// FIXME: In practice this doesn't work: the AutoType you find inside
// TypeLoc never has a deduced type. https://llvm.org/PR42914
- Outer.add(DT->getDeducedType(), Flags | Rel::Underlying);
+ Outer.add(DT->getDeducedType(), Flags);
}
void VisitDeducedTemplateSpecializationType(
const DeducedTemplateSpecializationType *DTST) {
Index: clang-tools-extra/clang-tidy/readability/QualifiedAutoCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/readability/QualifiedAutoCheck.cpp
+++ clang-tools-extra/clang-tidy/readability/QualifiedAutoCheck.cpp
@@ -125,18 +125,22 @@
};
auto IsBoundToType = refersToType(equalsBoundNode("type"));
+ auto UnlessFunctionType = unless(hasUnqualifiedDesugaredType(functionType()));
+ auto IsAutoDeducedToPointer = [](const auto &...InnerMatchers) {
+ return autoType(hasDeducedType(
+ hasUnqualifiedDesugaredType(pointerType(pointee(InnerMatchers...)))));
+ };
Finder->addMatcher(
- ExplicitSingleVarDecl(hasType(autoType(hasDeducedType(
- pointerType(pointee(unless(functionType())))))),
+ ExplicitSingleVarDecl(hasType(IsAutoDeducedToPointer(UnlessFunctionType)),
"auto"),
this);
Finder->addMatcher(
ExplicitSingleVarDeclInTemplate(
- allOf(hasType(autoType(hasDeducedType(pointerType(
- pointee(hasUnqualifiedType(qualType().bind("type")),
- unless(functionType())))))),
+ allOf(hasType(IsAutoDeducedToPointer(
+ hasUnqualifiedType(qualType().bind("type")),
+ UnlessFunctionType)),
anyOf(hasAncestor(
functionDecl(hasAnyTemplateArgument(IsBoundToType))),
hasAncestor(classTemplateSpecializationDecl(
Index: clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp
+++ clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp
@@ -20,9 +20,11 @@
if (!getLangOpts().CPlusPlus)
return;
- const auto AllPointerTypes = anyOf(
- hasType(pointerType()), hasType(autoType(hasDeducedType(pointerType()))),
- hasType(decltypeType(hasUnderlyingType(pointerType()))));
+ const auto AllPointerTypes =
+ anyOf(hasType(pointerType()),
+ hasType(autoType(
+ hasDeducedType(hasUnqualifiedDesugaredType(pointerType())))),
+ hasType(decltypeType(hasUnderlyingType(pointerType()))));
// Flag all operators +, -, +=, -=, ++, -- that result in a pointer
Finder->addMatcher(
Index: clang-tools-extra/clang-tidy/cppcoreguidelines/OwningMemoryCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/cppcoreguidelines/OwningMemoryCheck.cpp
+++ clang-tools-extra/clang-tidy/cppcoreguidelines/OwningMemoryCheck.cpp
@@ -134,14 +134,9 @@
// Matching on initialization operations where the initial value is a newly
// created owner, but the LHS is not an owner.
Finder->addMatcher(
- traverse(
- TK_AsIs,
- namedDecl(
- varDecl(eachOf(allOf(hasInitializer(CreatesOwner),
- unless(IsOwnerType)),
- allOf(hasInitializer(ConsideredOwner),
- hasType(autoType().bind("deduced_type")))))
- .bind("bad_owner_creation_variable"))),
+ traverse(TK_AsIs, namedDecl(varDecl(allOf(hasInitializer(CreatesOwner),
+ unless(IsOwnerType)))
+ .bind("bad_owner_creation_variable"))),
this);
// Match on all function calls that expect owners as arguments, but didn't
@@ -324,13 +319,6 @@
// FIXME: FixitHint to rewrite the type of the initialized variable
// as 'gsl::owner<OriginalType>'
-
- // If the type of the variable was deduced, the wrapping owner typedef is
- // eliminated, therefore the check emits a special note for that case.
- if (Nodes.getNodeAs<AutoType>("deduced_type")) {
- diag(BadOwnerInitialization->getBeginLoc(),
- "type deduction did not result in an owner", DiagnosticIDs::Note);
- }
return true;
}
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