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Backport '[clang] static operators should evaluate object argument (r…
…eland)' to release/18.x (#80109) Cherry picked from commit ee01a2c. Closes #80041, backport #80108. Co-authored-by: Shafik Yaghmour <[email protected]> Co-authored-by: cor3ntin <[email protected]> Co-authored-by: Aaron Ballman <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| // RUN: %clang_cc1 -std=c++23 %s -ast-dump -triple x86_64-unknown-unknown -o - | FileCheck -strict-whitespace %s | ||
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| struct Functor { | ||
| static int operator()(int x, int y) { | ||
| return x + y; | ||
| } | ||
| static int operator[](int x, int y) { | ||
| return x + y; | ||
| } | ||
| }; | ||
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| Functor& get_functor() { | ||
| static Functor functor; | ||
| return functor; | ||
| } | ||
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| void call_static_operators() { | ||
| Functor functor; | ||
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| int z1 = functor(1, 2); | ||
| // CHECK: CXXOperatorCallExpr {{.*}} 'int' '()' | ||
| // CHECK-NEXT: |-ImplicitCastExpr {{.*}} <col:19, col:24> 'int (*)(int, int)' <FunctionToPointerDecay> | ||
| // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:19, col:24> 'int (int, int)' lvalue CXXMethod {{.*}} 'operator()' 'int (int, int)' | ||
| // CHECK-NEXT: |-DeclRefExpr {{.*}} <col:12> 'Functor' lvalue Var {{.*}} 'functor' 'Functor' | ||
| // CHECK-NEXT: |-IntegerLiteral {{.*}} <col:20> 'int' 1 | ||
| // CHECK-NEXT: `-IntegerLiteral {{.*}} <col:23> 'int' 2 | ||
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| int z2 = functor[1, 2]; | ||
| // CHECK: CXXOperatorCallExpr {{.*}} 'int' '[]' | ||
| // CHECK-NEXT: |-ImplicitCastExpr {{.*}} <col:19, col:24> 'int (*)(int, int)' <FunctionToPointerDecay> | ||
| // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:19, col:24> 'int (int, int)' lvalue CXXMethod {{.*}} 'operator[]' 'int (int, int)' | ||
| // CHECK-NEXT: |-DeclRefExpr {{.*}} <col:12> 'Functor' lvalue Var {{.*}} 'functor' 'Functor' | ||
| // CHECK-NEXT: |-IntegerLiteral {{.*}} <col:20> 'int' 1 | ||
| // CHECK-NEXT: `-IntegerLiteral {{.*}} <col:23> 'int' 2 | ||
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| int z3 = get_functor()(1, 2); | ||
| // CHECK: CXXOperatorCallExpr {{.*}} 'int' '()' | ||
| // CHECK-NEXT: |-ImplicitCastExpr {{.*}} <col:25, col:30> 'int (*)(int, int)' <FunctionToPointerDecay> | ||
| // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:25, col:30> 'int (int, int)' lvalue CXXMethod {{.*}} 'operator()' 'int (int, int)' | ||
| // CHECK-NEXT: |-CallExpr {{.*}} <col:12, col:24> 'Functor' lvalue | ||
| // CHECK-NEXT: | `-ImplicitCastExpr {{.*}} <col:12> 'Functor &(*)()' <FunctionToPointerDecay> | ||
| // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:12> 'Functor &()' lvalue Function {{.*}} 'get_functor' 'Functor &()' | ||
| // CHECK-NEXT: |-IntegerLiteral {{.*}} <col:26> 'int' 1 | ||
| // CHECK-NEXT: `-IntegerLiteral {{.*}} <col:29> 'int' 2 | ||
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| int z4 = get_functor()[1, 2]; | ||
| // CHECK: CXXOperatorCallExpr {{.*}} 'int' '[]' | ||
| // CHECK-NEXT: |-ImplicitCastExpr {{.*}} <col:25, col:30> 'int (*)(int, int)' <FunctionToPointerDecay> | ||
| // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:25, col:30> 'int (int, int)' lvalue CXXMethod {{.*}} 'operator[]' 'int (int, int)' | ||
| // CHECK-NEXT: |-CallExpr {{.*}} <col:12, col:24> 'Functor' lvalue | ||
| // CHECK-NEXT: | `-ImplicitCastExpr {{.*}} <col:12> 'Functor &(*)()' <FunctionToPointerDecay> | ||
| // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:12> 'Functor &()' lvalue Function {{.*}} 'get_functor' 'Functor &()' | ||
| // CHECK-NEXT: |-IntegerLiteral {{.*}} <col:26> 'int' 1 | ||
| // CHECK-NEXT: `-IntegerLiteral {{.*}} <col:29> 'int' 2 | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| // RUN: %clang_cc1 -fsyntax-only -verify -std=c++23 %s | ||
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| // expected-no-diagnostics | ||
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| namespace A { | ||
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| struct Foo { | ||
| static int operator()(int a, int b) { return a + b; } | ||
| static int operator[](int a, int b) { return a + b; } | ||
| }; | ||
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| void ok() { | ||
| // Should pass regardless of const / volatile | ||
| Foo foo; | ||
| foo(1, 2); | ||
| foo[1, 2]; | ||
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| const Foo fooC; | ||
| fooC(1, 2); | ||
| fooC[1, 2]; | ||
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| const Foo fooV; | ||
| fooV(1, 2); | ||
| fooV[1, 2]; | ||
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| const volatile Foo fooCV; | ||
| fooCV(1, 2); | ||
| fooCV[1, 2]; | ||
| } | ||
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| } |