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a80cae11f6
designators in the parser. In the worst case, this disambiguation requires tentative parsing just past the closing ']', but for most cases we'll be able to tell by looking ahead just one token (without going into the heavyweight tentative parsing machinery). llvm-svn: 150790
41 lines
1.6 KiB
C++
41 lines
1.6 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -Wno-unused-value -verify -std=c++11 %s
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class C {
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int f() {
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int foo, bar;
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[]; // expected-error {{expected body of lambda expression}}
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[+] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
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[foo+] {}; // expected-error {{expected ',' or ']' in lambda capture list}}
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[foo,&this] {}; // expected-error {{'this' cannot be captured by reference}}
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[&this] {}; // expected-error {{'this' cannot be captured by reference}}
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[&,] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
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[=,] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
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[] {};
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[=] (int i) {};
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[&] (int) mutable -> void {};
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[foo,bar] () { return 3; };
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[=,&foo] () {};
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[&,foo] () {};
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[this] () {};
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[] -> int { return 0; }; // expected-error{{lambda requires '()' before return type}}
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[] mutable -> int { return 0; }; // expected-error{{lambda requires '()' before 'mutable'}}
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return 1;
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}
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void designator_or_lambda() {
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typedef int T;
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const int b = 0;
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const int c = 1;
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int a1[1] = {[b] (T()) {}}; // expected-error{{no viable conversion from 'C::<lambda}}
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int a2[1] = {[b] = 1 };
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int a3[1] = {[b,c] = 1 }; // expected-error{{expected body of lambda expression}}
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int a4[1] = {[&b] = 1 }; // expected-error{{integral constant expression must have integral or unscoped enumeration type, not 'const int *'}}
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int a5[3] = { []{return 0;}() };
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int a6[1] = {[this] = 1 }; // expected-error{{integral constant expression must have integral or unscoped enumeration type, not 'C *'}}
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}
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};
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