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251 lines
9 KiB
D
251 lines
9 KiB
D
/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(24): Error: return value `this.a` of type `inout(A8998)` does not match return type `immutable(A8998)`, and cannot be implicitly converted
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---
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*/
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class A8998
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{
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int i;
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}
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class C8998
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{
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A8998 a;
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this()
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{
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a = new A8998();
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}
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// WRONG: Returns immutable(A8998)
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immutable(A8998) get() inout pure
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{
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return a; // should be error
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}
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}
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(39): Error: return value `s` of type `const(char[])` does not match return type `string`, and cannot be implicitly converted
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fail_compilation/testInference.d(44): Error: return value `a` of type `int[]` does not match return type `immutable(int[])`, and cannot be implicitly converted
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fail_compilation/testInference.d(49): Error: return value `a` of type `int[]` does not match return type `immutable(int[])`, and cannot be implicitly converted
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fail_compilation/testInference.d(54): Error: return value `a` of type `int[]` does not match return type `immutable(int[])`, and cannot be implicitly converted
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---
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*/
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string foo(in char[] s) pure
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{
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return s; //
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}
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immutable(int[]) x1() /*pure*/
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{
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int[] a = new int[](10);
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return a; //
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}
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immutable(int[]) x2(int len) /*pure*/
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{
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int[] a = new int[](len);
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return a;
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}
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immutable(int[]) x3(immutable(int[]) org) /*pure*/
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{
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int[] a = new int[](org.length);
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return a; //
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}
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(94): Error: return value `c` of type `testInference.C1` does not match return type `immutable(C1)`, and cannot be implicitly converted
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fail_compilation/testInference.d(95): Error: return value `c` of type `testInference.C1` does not match return type `immutable(C1)`, and cannot be implicitly converted
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fail_compilation/testInference.d(96): Error: return value `c` of type `testInference.C3` does not match return type `immutable(C3)`, and cannot be implicitly converted
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fail_compilation/testInference.d(97): Error: return value `c` of type `testInference.C3` does not match return type `immutable(C3)`, and cannot be implicitly converted
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fail_compilation/testInference.d(100): Error: undefined identifier `X1`, did you mean function `x1`?
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fail_compilation/testInference.d(106): Error: return value `s` of type `S1` does not match return type `immutable(S1)`, and cannot be implicitly converted
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fail_compilation/testInference.d(109): Error: return value `a` of type `int*[]` does not match return type `immutable(int*[])`, and cannot be implicitly converted
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fail_compilation/testInference.d(110): Error: return value `a` of type `const(int)*[]` does not match return type `immutable(int*[])`, and cannot be implicitly converted
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fail_compilation/testInference.d(114): Error: return value `s` of type `S2` does not match return type `immutable(S2)`, and cannot be implicitly converted
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fail_compilation/testInference.d(115): Error: return value `s` of type `S2` does not match return type `immutable(S2)`, and cannot be implicitly converted
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fail_compilation/testInference.d(116): Error: return value `s` of type `S2` does not match return type `immutable(S2)`, and cannot be implicitly converted
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fail_compilation/testInference.d(118): Error: return value `a` of type `const(int)*[]` does not match return type `immutable(int*[])`, and cannot be implicitly converted
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---
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*/
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immutable(Object) get(inout int*) pure
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{
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auto o = new Object;
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return o; // should be ok
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}
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immutable(Object) get(immutable Object) pure
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{
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auto o = new Object;
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return o; // should be ok
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}
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inout(Object) get(inout Object) pure
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{
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auto o = new Object;
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return o; // should be ok (, but cannot in current conservative rule)
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}
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class C1 { C2 c2; }
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class C2 { C3 c3; }
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class C3 { C1 c1; }
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immutable(C1) recursive1(C3 pc) pure { auto c = new C1(); return c; } // should be error, because pc.c1 == C1
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immutable(C1) recursive2(C2 pc) pure { auto c = new C1(); return c; } // should be error, because pc.c3.c1 == C1
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immutable(C3) recursive3(C1 pc) pure { auto c = new C3(); return c; } // should be error, c.c1 may be pc
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immutable(C3) recursive4(C2 pc) pure { auto c = new C3(); return c; } // should be error, c.c1.c2 may be pc
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immutable(C1) recursive5(shared C2 pc) pure { auto c = new C1(); return c; }
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immutable(C1) recursive6(immutable C2 pc) pure { auto c = new C1(); return c; }
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immutable(C1) recursiveE(immutable C2 pc) pure { auto c = new X1(); return c; }
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class C4 { C4[] arr; }
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immutable(C4)[] recursive7(int[] arr) pure { auto a = new C4[](1); return a; }
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struct S1 { int* ptr; }
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immutable(S1) foo1a( int*[] prm) pure { S1 s; return s; } // NG
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immutable(S1) foo1b( const int*[] prm) pure { S1 s; return s; } // OK
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immutable(S1) foo1c(immutable int*[] prm) pure { S1 s; return s; } // OK
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immutable(int*[]) bar1a( S1 prm) pure { int *[] a; return a; } // NG
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immutable(int*[]) bar1b( S1 prm) pure { const(int)*[] a; return a; } // NG
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immutable(int*[]) bar1c( S1 prm) pure { immutable(int)*[] a; return a; } // OK
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struct S2 { const(int)* ptr; }
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immutable(S2) foo2a( int*[] prm) pure { S2 s; return s; } // OK
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immutable(S2) foo2b( const int*[] prm) pure { S2 s; return s; } // NG
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immutable(S2) foo2c(immutable int*[] prm) pure { S2 s; return s; } // NG
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immutable(int*[]) bar2a( S2 prm) pure { int *[] a; return a; } // OK
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immutable(int*[]) bar2b( S2 prm) pure { const(int)*[] a; return a; } // NG
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immutable(int*[]) bar2c( S2 prm) pure { immutable(int)*[] a; return a; } // OK
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(134): Error: return value `f10063(cast(inout(void*))p)` of type `inout(void)*` does not match return type `immutable(void)*`, and cannot be implicitly converted
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---
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*/
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inout(void)* f10063(inout void* p) pure
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{
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return p;
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}
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immutable(void)* g10063(inout int* p) pure
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{
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return f10063(p);
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}
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(154): Error: `pure` function `testInference.bar14049` cannot call impure function `testInference.foo14049!int.foo14049`
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fail_compilation/testInference.d(149): which calls `() => impure14049()`
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fail_compilation/testInference.d(148): which calls `impure14049`
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fail_compilation/testInference.d(143): and accessing mutable static data `i` makes it fail to infer `pure`
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---
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*/
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#line 143
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auto impure14049() { static int i = 1; return i; }
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void foo14049(T)(T val)
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{
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auto n = () @trusted {
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return impure14049();
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}();
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}
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void bar14049() pure
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{
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foo14049(1);
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}
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(166): Error: `pure` function `testInference.f14160` cannot access mutable static data `g14160`
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---
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*/
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int g14160;
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int* f14160() pure
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{
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return &g14160; // should be rejected
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}
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(180): Error: `pure` function `testInference.test12422` cannot call impure function `testInference.test12422.bar12422!().bar12422`
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fail_compilation/testInference.d(179): which calls `foo12422`
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---
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*/
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#line 175
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int g12422;
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void foo12422() { ++g12422; }
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void test12422() pure
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{
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void bar12422()() { foo12422(); }
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bar12422();
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}
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(198): Error: `pure` function `testInference.test13729a` cannot call impure function `testInference.test13729a.foo`
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fail_compilation/testInference.d(196): and accessing mutable static data `g13729` makes it fail to infer `pure`
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fail_compilation/testInference.d(206): Error: `pure` function `testInference.test13729b` cannot call impure function `testInference.test13729b.foo!().foo`
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fail_compilation/testInference.d(204): and accessing mutable static data `g13729` makes it fail to infer `pure`
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---
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*/
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#line 190
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int g13729;
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void test13729a() pure
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{
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static void foo() // typed as impure
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{
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g13729++;
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}
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foo(); // cannot call impure function
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}
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void test13729b() pure
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{
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static void foo()() // inferred to impure
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{
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g13729++;
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}
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foo(); // cannot call impure function
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}
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(225): Error: `testInference.test17086` called with argument types `(bool)` matches multiple overloads exactly:
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fail_compilation/testInference.d(219): `testInference.test17086!(bool, false).test17086(bool x)`
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and:
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fail_compilation/testInference.d(220): `testInference.test17086!(bool, false).test17086(bool y)`
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---
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*/
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void test17086 (T, T V = T.init) (T x) { assert(x.foo); }
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void test17086 (T, T V = T.init) (T y) { assert(y.bar); }
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void test17086_call ()
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{
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bool f;
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test17086(f);
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}
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/*
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TEST_OUTPUT:
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---
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fail_compilation/testInference.d(238): Error: `pure` function `testInference.test20047_pure_function` cannot call impure function `testInference.test20047_pure_function.bug`
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fail_compilation/testInference.d(237): which calls `test20047_impure_function`
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---
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*/
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#line 234
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void test20047_impure_function() {}
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void test20047_pure_function() pure
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{
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static void bug() { return test20047_impure_function(); }
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bug();
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}
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