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view tests/mini/s.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 | d92acb81a583 |
children |
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module s; interface Inter { void inter(); } interface Inter2 { void inter2(); } interface InterOne : Inter { void interOne(); } abstract class ClassAbstract : InterOne { abstract void inter(); abstract void interOne(); } class TheClassOne : ClassAbstract { void inter() { } void interOne() { } } class TheClassTwo : TheClassOne, Inter2 { long l; double d; void inter2() { } } extern(C) int printf(char*, ...); void main() { printf("classinfo test\n"); { auto c = new TheClassOne; { auto ci = c.classinfo; printf("ci = %.*s\n", ci.name.length, ci.name.ptr); printf("ci.interfaces.length = %lu\n", ci.interfaces.length); foreach (i, iface; ci.interfaces) printf("i[%d] = %.*s\n", i, iface.classinfo.name.length, iface.classinfo.name.ptr); } } { auto c = new TheClassTwo; { auto ci = c.classinfo; printf("ci = %.*s\n", ci.name.length, ci.name.ptr); printf("ci.interfaces.length = %lu\n", ci.interfaces.length); foreach (i, iface; ci.interfaces) printf("i[%d] = %.*s\n", i, iface.classinfo.name.length, iface.classinfo.name.ptr); } InterOne i = c; { auto ci = i.classinfo; printf("ci = %.*s\n", ci.name.length, ci.name.ptr); } auto i2 = cast(Inter2)c; { auto ci = i2.classinfo; printf("ci = %.*s\n", ci.name.length, ci.name.ptr); } auto o = cast(Object)i2; { auto ci = o.classinfo; printf("ci = %.*s\n", ci.name.length, ci.name.ptr); } } }