forked from OSchip/llvm-project
87 lines
5.4 KiB
C++
87 lines
5.4 KiB
C++
// RUN: %clang_cc1 -std=c++0x -Wno-unused-value -fsyntax-only -verify -fblocks %s
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namespace std { class type_info; };
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namespace ExplicitCapture {
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class C {
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int Member;
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static void Overload(int);
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void Overload();
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virtual C& Overload(float);
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void ImplicitThisCapture() {
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[](){(void)Member;}; // expected-error {{'this' cannot be implicitly captured in this context}} expected-error {{not supported yet}}
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[&](){(void)Member;}; // expected-error {{not supported yet}}
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// 'this' captures below don't actually work yet
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[this](){(void)Member;}; // expected-error{{lambda expressions are not supported yet}}
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[this]{[this]{};}; // expected-error 2{{lambda expressions are not supported yet}}
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[]{[this]{};};// expected-error {{'this' cannot be implicitly captured in this context}} expected-error 2 {{not supported yet}}
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[]{Overload(3);}; // expected-error {{not supported yet}}
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[]{Overload();}; // expected-error {{'this' cannot be implicitly captured in this context}} expected-error {{not supported yet}}
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[]{(void)typeid(Overload());};// expected-error {{not supported yet}}
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[]{(void)typeid(Overload(.5f));};// expected-error {{'this' cannot be implicitly captured in this context}} expected-error {{not supported yet}}
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}
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};
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void f() {
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[this] () {}; // expected-error {{'this' cannot be captured in this context}} expected-error {{not supported yet}}
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}
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}
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namespace ReturnDeduction {
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void test() {
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[](){ return 1; }; // expected-error {{not supported yet}}
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[](){ return 1; }; // expected-error {{not supported yet}}
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[](){ return ({return 1; 1;}); }; // expected-error {{not supported yet}}
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[](){ return ({return 'c'; 1;}); }; // expected-error {{not supported yet}} expected-error {{must match previous return type}}
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[]()->int{ return 'c'; return 1; }; // expected-error {{not supported yet}}
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[](){ return 'c'; return 1; }; // expected-error {{not supported yet}} expected-error {{must match previous return type}}
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[]() { return; return (void)0; }; // expected-error {{not supported yet}}
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// FIXME: Need to check structure of lambda body
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[](){ return 1; return 1; }; // expected-error {{not supported yet}}
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}
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}
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namespace ImplicitCapture {
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void test() {
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int a = 0; // expected-note 5 {{declared}}
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[]() { return a; }; // expected-error {{variable 'a' cannot be implicitly captured in a lambda with no capture-default specified}} expected-note {{begins here}} expected-error {{not supported yet}}
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[&]() { return a; }; // expected-error {{not supported yet}}
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[=]() { return a; }; // expected-error {{not supported yet}}
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[=]() { int* b = &a; }; // expected-error {{cannot initialize a variable of type 'int *' with an rvalue of type 'const int *'}} expected-error {{not supported yet}}
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[=]() { return [&]() { return a; }; }; // expected-error 2 {{not supported yet}}
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[]() { return [&]() { return a; }; }; // expected-error {{variable 'a' cannot be implicitly captured in a lambda with no capture-default specified}} expected-note {{lambda expression begins here}} expected-error 2 {{not supported yet}}
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[]() { return ^{ return a; }; };// expected-error {{variable 'a' cannot be implicitly captured in a lambda with no capture-default specified}} expected-note {{lambda expression begins here}} expected-error {{not supported yet}}
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[]() { return [&a] { return a; }; }; // expected-error 2 {{variable 'a' cannot be implicitly captured in a lambda with no capture-default specified}} expected-note 2 {{lambda expression begins here}} expected-error 2 {{not supported yet}}
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[=]() { return [&a] { return a; }; }; // expected-error 2 {{not supported yet}}
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const int b = 2;
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[]() { return b; }; // expected-error {{not supported yet}}
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union { // expected-note {{declared}}
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int c;
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float d;
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};
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d = 3;
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[=]() { return c; }; // expected-error {{unnamed variable cannot be implicitly captured in a lambda expression}} expected-error {{not supported yet}}
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__block int e; // expected-note 3 {{declared}}
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[&]() { return e; }; // expected-error {{__block variable 'e' cannot be captured in a lambda expression}} expected-error {{not supported yet}}
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[&e]() { return e; }; // expected-error 2 {{__block variable 'e' cannot be captured in a lambda expression}} expected-error {{not supported yet}}
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int f[10]; // expected-note {{declared}}
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[&]() { return f[2]; }; // expected-error {{not supported yet}}
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(void) ^{ return []() { return f[2]; }; }; // expected-error {{cannot refer to declaration with an array type inside block}} expected-error {{not supported yet}}
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struct G { G(); G(G&); int a; }; // expected-note 6 {{not viable}}
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G g;
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[=]() { const G* gg = &g; return gg->a; }; // expected-error {{not supported yet}}
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[=]() { return [=]{ const G* gg = &g; return gg->a; }(); }; // expected-error {{no matching constructor for initialization of 'const ImplicitCapture::G'}} expected-error 2 {{not supported yet}}
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(void)^{ return [=]{ const G* gg = &g; return gg->a; }(); }; // expected-error 2 {{no matching constructor for initialization of 'const ImplicitCapture::G'}} expected-error {{not supported yet}}
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const int h = a; // expected-note {{declared}}
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[]() { return h; }; // expected-error {{variable 'h' cannot be implicitly captured in a lambda with no capture-default specified}} expected-note {{lambda expression begins here}} expected-error {{not supported yet}}
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}
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}
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