llvm-project/clang/test/Index/copy-assignment-operator.cpp
Luca Di Sera 476a497f72 Add clang_CXXMethod_isCopyAssignmentOperator to libclang
The new method is a wrapper of `CXXMethodDecl::isCopyAssignmentOperator` and
can be used to recognized copy-assignment operators in libclang.

An export for the method, together with its documentation, was added to
"clang/include/clang-c/Index.h" with an implementation provided in
"clang/tools/libclang/CIndex.cpp". The implementation was based on
similar `clang_CXXMethod.*` implementations, following the same
structure but calling `CXXMethodDecl::isCopyAssignmentOperator` for its
main logic.

The new symbol was further added to "clang/tools/libclang/libclang.map"
to be exported, under the LLVM16 tag.

"clang/tools/c-index-test/c-index-test.c" was modified to print a
specific tag, "(copy-assignment operator)", for cursors that are
recognized by `clang_CXXMethod_isCopyAssignmentOperator`.
A new regression test file,
"clang/test/Index/copy-assignment-operator.cpp", was added to ensure
that the correct constructs were recognized or not by the new function.

The "clang/test/Index/get-cursor.cpp" regression test file was updated
as it was affected by the new "(copy-assignment operator)" tag.

A binding for the new function was added to libclang's python's
bindings, in "clang/bindings/python/clang/cindex.py", adding a new
method for `Cursor`, `is_copy_assignment_operator_method`.

The current release note, `clang/docs/ReleaseNotes.rst`, was modified to
report the new addition under the "libclang" section.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D136604
2022-10-27 06:55:11 +02:00

48 lines
5.1 KiB
C++

struct Foo {
// Those are copy-assignment operators
bool operator=(const Foo&);
bool operator=(Foo&);
bool operator=(volatile Foo&);
bool operator=(const volatile Foo&);
bool operator=(Foo);
// Those are not copy-assignment operators
template<typename T>
bool operator=(const T&);
bool operator=(const bool&);
bool operator=(char&);
bool operator=(volatile unsigned int&);
bool operator=(const volatile unsigned char&);
bool operator=(int);
};
// Positive-check that the recognition works for templated classes too
template <typename T>
class Bar {
bool operator=(const Bar&);
bool operator=(Bar<T>&);
bool operator=(volatile Bar&);
bool operator=(const volatile Bar<T>&);
bool operator=(Bar);
};
// RUN: c-index-test -test-print-type --std=c++11 %s | FileCheck %s
// CHECK: StructDecl=Foo:1:8 (Definition) [type=Foo] [typekind=Record] [isPOD=0]
// CHECK: CXXMethod=operator=:3:10 (copy-assignment operator) [type=bool (const Foo &)] [typekind=FunctionProto] [canonicaltype=bool (const Foo &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [const Foo &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:4:10 (copy-assignment operator) [type=bool (Foo &)] [typekind=FunctionProto] [canonicaltype=bool (Foo &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [Foo &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:5:10 (copy-assignment operator) [type=bool (volatile Foo &)] [typekind=FunctionProto] [canonicaltype=bool (volatile Foo &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [volatile Foo &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:6:10 (copy-assignment operator) [type=bool (const volatile Foo &)] [typekind=FunctionProto] [canonicaltype=bool (const volatile Foo &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [const volatile Foo &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:7:10 (copy-assignment operator) [type=bool (Foo)] [typekind=FunctionProto] [canonicaltype=bool (Foo)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [Foo] [Elaborated]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: FunctionTemplate=operator=:11:10 [type=bool (const T &)] [typekind=FunctionProto] [canonicaltype=bool (const type-parameter-0-0 &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:12:10 [type=bool (const bool &)] [typekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [const bool &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:13:10 [type=bool (char &)] [typekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [char &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:14:10 [type=bool (volatile unsigned int &)] [typekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [volatile unsigned int &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:15:10 [type=bool (const volatile unsigned char &)] [typekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [const volatile unsigned char &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:16:10 [type=bool (int)] [typekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [int] [Int]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: ClassTemplate=Bar:21:7 (Definition) [type=] [typekind=Invalid] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:22:10 (copy-assignment operator) [type=bool (const Bar<T> &)] [typekind=FunctionProto] [canonicaltype=bool (const Bar<T> &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [const Bar<T> &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:23:10 (copy-assignment operator) [type=bool (Bar<T> &)] [typekind=FunctionProto] [canonicaltype=bool (Bar<T> &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [Bar<T> &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:24:10 (copy-assignment operator) [type=bool (volatile Bar<T> &)] [typekind=FunctionProto] [canonicaltype=bool (volatile Bar<T> &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [volatile Bar<T> &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:25:10 (copy-assignment operator) [type=bool (const volatile Bar<T> &)] [typekind=FunctionProto] [canonicaltype=bool (const volatile Bar<T> &)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [const volatile Bar<T> &] [LValueReference]] [isPOD=0] [isAnonRecDecl=0]
// CHECK: CXXMethod=operator=:26:10 (copy-assignment operator) [type=bool (Bar<T>)] [typekind=FunctionProto] [canonicaltype=bool (Bar<T>)] [canonicaltypekind=FunctionProto] [resulttype=bool] [resulttypekind=Bool] [args= [Bar<T>] [Elaborated]] [isPOD=0] [isAnonRecDecl=0]