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view tests/mini/staticarrays.d @ 1499:df11cdec45a2
Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324.
The idea is to separate the notion of const from 'this variable can always be
replaced with its initializer' in the frontend. To do that, I introduced
Declaration::isSameAsInitializer, which is overridden in VarDeclaration to
return false for constants that have a struct literal initializer.
So
{{{
const S s = S(5);
void foo() { auto ps = &s; }
// is no longer replaced by
void foo() { auto ps = &(S(5)); }
}}}
To make taking the address of a struct constant with a struct-initializer
outside of function scope possible, I made sure that AddrExp::optimize doesn't
try to run the argument's optimization with WANTinterpret - that'd again
replace the constant with a struct literal temporary.
author | Christian Kamm <kamm incasoftware de> |
---|---|
date | Sun, 14 Jun 2009 19:49:58 +0200 |
parents | 1bb99290e03a |
children |
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line source
extern(C) int printf(char*, ...); void numbers() { bool[8] bools; char[8] chars; byte[8] bytes; short[8] shorts; int[8] ints; long[8] longs; float[8] floats; double[8] doubles; real[8] reals; { bools[7] = true; floats[7] = 3.14159265; { printf("bools[0] = %d, bools[7] = %d\n", bools[0], bools[7]); printf("floats[0] = %f, floats[7] = %f\n", floats[0], floats[7]); } } } struct S { int i = 42; void print() { printf("S.i = %d\n", i); } } class C { int i; this() { i = 3; } void print() { printf("C.i = %d\n", i); } } void refs() { void*[5] voids; S*[5] structs; C[5] classes; { voids[0] = cast(void*)0xA; printf("void* = %p\n", voids[0]); } { structs[0] = new S; structs[0].print(); delete structs[0]; } { classes[0] = new C; classes[0].print(); delete classes[0]; } } void vals() { S[5] structs; } void main() { numbers(); refs(); vals(); }