1// RUN: %clang_cc1 -fsyntax-only -fblocks -fobjc-arc -fobjc-runtime-has-weak -I %S/Inputs -verify %s 2// RUN: %clang_cc1 -fsyntax-only -fblocks -fobjc-arc -fobjc-runtime-has-weak -I %S/Inputs -verify -fexperimental-new-constant-interpreter %s 3 4#include "non-trivial-c-union.h" 5 6typedef union { // expected-note 12 {{'U0' has subobjects that are non-trivial to default-initialize}} expected-note 36 {{'U0' has subobjects that are non-trivial to destruct}} expected-note 28 {{'U0' has subobjects that are non-trivial to copy}} 7 id f0; // expected-note 12 {{f0 has type '__strong id' that is non-trivial to default-initialize}} expected-note 36 {{f0 has type '__strong id' that is non-trivial to destruct}} expected-note 28 {{f0 has type '__strong id' that is non-trivial to copy}} 8 __weak id f1; // expected-note 12 {{f1 has type '__weak id' that is non-trivial to default-initialize}} expected-note 36 {{f1 has type '__weak id' that is non-trivial to destruct}} expected-note 28 {{f1 has type '__weak id' that is non-trivial to copy}} 9} U0; 10 11typedef struct { 12 U0 f0; 13 id f1; 14} S0; 15 16id g0; 17U0 ug0; // expected-error {{cannot default-initialize an object of type 'U0' since it is a union that is non-trivial to default-initialize}} 18U0 ug1 = { .f0 = 0 }; 19S0 sg0; // expected-error {{cannot default-initialize an object of type 'S0' since it contains a union that is non-trivial to default-initialize}} 20S0 sg1 = { .f0 = {0}, .f1 = 0 }; 21S0 sg2 = { .f1 = 0 }; // expected-error {{cannot default-initialize an object of type 'U0' since it is a union that is non-trivial to default-initialize}} 22 23U0 foo0(U0); // expected-error {{cannot use type 'U0' for a function/method parameter since it is a union that is non-trivial to destruct}} expected-error {{cannot use type 'U0' for a function/method parameter since it is a union that is non-trivial to copy}} expected-error {{cannot use type 'U0' for function/method return since it is a union that is non-trivial to destruct}} expected-error {{cannot use type 'U0' for function/method return since it is a union that is non-trivial to copy}} 24S0 foo1(S0); // expected-error {{cannot use type 'S0' for a function/method parameter since it contains a union that is non-trivial to destruct}} expected-error {{cannot use type 'S0' for a function/method parameter since it contains a union that is non-trivial to copy}} expected-error {{cannot use type 'S0' for function/method return since it contains a union that is non-trivial to destruct}} expected-error {{cannot use type 'S0' for function/method return since it contains a union that is non-trivial to copy}} 25 26@interface C 27-(U0)m0:(U0)arg; // expected-error {{cannot use type 'U0' for a function/method parameter since it is a union that is non-trivial to destruct}} expected-error {{cannot use type 'U0' for a function/method parameter since it is a union that is non-trivial to copy}} expected-error {{cannot use type 'U0' for function/method return since it is a union that is non-trivial to destruct}} expected-error {{cannot use type 'U0' for function/method return since it is a union that is non-trivial to copy}} 28-(S0)m1:(S0)arg; // expected-error {{cannot use type 'S0' for a function/method parameter since it contains a union that is non-trivial to destruct}} expected-error {{cannot use type 'S0' for a function/method parameter since it contains a union that is non-trivial to copy}} expected-error {{cannot use type 'S0' for function/method return since it contains a union that is non-trivial to destruct}} expected-error {{cannot use type 'S0' for function/method return since it contains a union that is non-trivial to copy}} 29@end 30 31void testBlockFunction(void) { 32 (void)^(U0 a){ return ug0; }; // expected-error {{cannot use type 'U0' for a function/method parameter since it is a union that is non-trivial to destruct}} expected-error {{cannot use type 'U0' for a function/method parameter since it is a union that is non-trivial to copy}} expected-error {{cannot use type 'U0' for function/method return since it is a union that is non-trivial to destruct}} expected-error {{cannot use type 'U0' for function/method return since it is a union that is non-trivial to copy}} 33 (void)^(S0 a){ return sg0; }; // expected-error {{cannot use type 'S0' for a function/method parameter since it contains a union that is non-trivial to destruct}} expected-error {{cannot use type 'S0' for a function/method parameter since it contains a union that is non-trivial to copy}} expected-error {{cannot use type 'S0' for function/method return since it contains a union that is non-trivial to destruct}} expected-error {{cannot use type 'S0' for function/method return since it contains a union that is non-trivial to copy}} 34} 35void testAutoVar(void) { 36 U0 u0; // expected-error {{cannot declare an automatic variable of type 'U0' since it is a union that is non-trivial to destruct}} expected-error {{cannot default-initialize an object of type 'U0' since it is a union that is non-trivial to default-initialize}} 37 U0 u1 = ug0; // expected-error {{cannot declare an automatic variable of type 'U0' since it is a union that is non-trivial to destruct}} expected-error {{cannot copy-initialize an object of type 'U0' since it is a union that is non-trivial to copy}} 38 U0 u2 = { g0 }; // expected-error {{cannot declare an automatic variable of type 'U0' since it is a union that is non-trivial to destruct}} 39 U0 u3 = { .f1 = g0 }; // expected-error {{cannot declare an automatic variable of type 'U0' since it is a union that is non-trivial to destruct}} 40 S0 s0; // expected-error {{cannot declare an automatic variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot default-initialize an object of type 'S0' since it contains a union that is non-trivial to default-initialize}} 41 S0 s1 = sg0; // expected-error {{declare an automatic variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot copy-initialize an object of type 'S0' since it contains a union that is non-trivial to copy}} 42 S0 s2 = { ug0 }; // expected-error {{cannot declare an automatic variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot copy-initialize an object of type 'U0' since it is a union that is non-trivial to copy}} 43 S0 s3 = { .f0 = ug0 }; // expected-error {{cannot declare an automatic variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot copy-initialize an object of type 'U0' since it is a union that is non-trivial to copy}} 44 S0 s4 = { .f1 = g0 }; // expected-error {{cannot declare an automatic variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot default-initialize an object of type 'U0' since it is a union that is non-trivial to default-initialize}} 45} 46 47void testAssignment(void) { 48 ug0 = ug1; // expected-error {{cannot assign to a variable of type 'U0' since it is a union that is non-trivial to copy}} 49 sg0 = sg1; // expected-error {{cannot assign to a variable of type 'S0' since it contains a union that is non-trivial to copy}} 50} 51 52U0 ug2 = (U0){ .f1 = 0 }; // expected-error {{cannot copy-initialize an object of type 'U0' since it is a union that is non-trivial to copy}} 53S0 sg3 = (S0){ .f0 = {0}, .f1 = 0 }; // expected-error {{cannot copy-initialize an object of type 'S0' since it contains a union that is non-trivial to copy}} 54S0 *sg4 = &(S0){ .f1 = 0 }; // expected-error {{cannot default-initialize an object of type 'U0' since it is a union that is non-trivial to default-initialize}} 55 56void testCompoundLiteral(void) { 57 const U0 *t0 = &(U0){ .f0 = g0 }; // expected-error {{cannot construct an automatic compound literal of type 'U0' since it is a union that is non-trivial to destruct}} 58 const U0 *t1 = &(U0){ .f1 = g0 }; // expected-error {{cannot construct an automatic compound literal of type 'U0' since it is a union that is non-trivial to destruct}} 59 const S0 *t2 = &(S0){ .f0 = ug0 }; // expected-error {{cannot construct an automatic compound literal of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot copy-initialize an object of type 'U0' since it is a union that is non-trivial to copy}} 60 const S0 *t3 = &(S0){ .f1 = g0 }; // expected-error {{cannot construct an automatic compound literal of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot default-initialize an object of type 'U0' since it is a union that is non-trivial to default-initialize}} 61} 62 63typedef void (^BlockTy)(void); 64void escapingFunc(BlockTy); 65void noescapingFunc(__attribute__((noescape)) BlockTy); 66 67void testBlockCapture(void) { 68 U0 t0; // expected-error {{cannot declare an automatic variable of type 'U0' since it is a union that is non-trivial to destruct}} expected-error {{cannot default-initialize an object of type 'U0' since it is a union that is non-trivial to default-initialize}} 69 S0 t1; // expected-error {{cannot declare an automatic variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot default-initialize an object of type 'S0' since it contains a union that is non-trivial to default-initialize}} 70 __block U0 t2; // expected-error {{cannot declare an automatic variable of type 'U0' since it is a union that is non-trivial to destruct}} expected-error {{cannot default-initialize an object of type 'U0' since it is a union that is non-trivial to default-initialize}} 71 __block S0 t3; // expected-error {{cannot declare an automatic variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot default-initialize an object of type 'S0' since it contains a union that is non-trivial to default-initialize}} 72 73 escapingFunc(^{ g0 = t0.f0; }); // expected-error {{cannot capture a variable of type 'U0' since it is a union that is non-trivial to destruct}} expected-error {{cannot capture a variable of type 'U0' since it is a union that is non-trivial to copy}} 74 escapingFunc(^{ g0 = t1.f0.f0; }); // expected-error {{cannot capture a variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot capture a variable of type 'S0' since it contains a union that is non-trivial to copy}} 75 escapingFunc(^{ g0 = t2.f0; }); // expected-error {{cannot capture a variable of type 'U0' since it is a union that is non-trivial to destruct}} expected-error {{cannot capture a variable of type 'U0' since it is a union that is non-trivial to copy}} 76 escapingFunc(^{ g0 = t3.f0.f0; }); // expected-error {{cannot capture a variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot capture a variable of type 'S0' since it contains a union that is non-trivial to copy}} 77 noescapingFunc(^{ g0 = t0.f0; }); // expected-error {{cannot capture a variable of type 'U0' since it is a union that is non-trivial to destruct}} expected-error {{cannot capture a variable of type 'U0' since it is a union that is non-trivial to copy}} 78 noescapingFunc(^{ g0 = t1.f0.f0; }); // expected-error {{cannot capture a variable of type 'S0' since it contains a union that is non-trivial to destruct}} expected-error {{cannot capture a variable of type 'S0' since it contains a union that is non-trivial to copy}} 79 noescapingFunc(^{ g0 = t2.f0; }); 80 noescapingFunc(^{ g0 = t3.f0.f0; }); 81} 82 83void testVolatileLValueToRValue(volatile U0 *a) { 84 (void)*a; // expected-error {{cannot use volatile type 'volatile U0' where it causes an lvalue-to-rvalue conversion since it is a union that is non-trivial to destruct}} // expected-error {{cannot use volatile type 'volatile U0' where it causes an lvalue-to-rvalue conversion since it is a union that is non-trivial to copy}} 85} 86 87void unionInSystemHeader0(U0_SystemHeader); 88 89void unionInSystemHeader1(U1_SystemHeader); // expected-error {{cannot use type 'U1_SystemHeader' for a function/method parameter since it is a union that is non-trivial to destruct}} expected-error {{cannot use type 'U1_SystemHeader' for a function/method parameter since it is a union that is non-trivial to copy}} 90