annotate lphobos/gcstats.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 |
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c53b6e3fe49a |
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1 // Copyright (c) 1999-2002 by Digital Mars
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2 // All Rights Reserved
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3 // written by Walter Bright
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4 // www.digitalmars.com
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5
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6 struct GCStats
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7 {
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8 size_t poolsize; // total size of pool
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9 size_t usedsize; // bytes allocated
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10 size_t freeblocks; // number of blocks marked FREE
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11 size_t freelistsize; // total of memory on free lists
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12 size_t pageblocks; // number of blocks marked PAGE
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13 }
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