Mercurial > projects > ldc
annotate dmd2/root/async.h @ 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 | 638d16625da2 |
children |
rev | line source |
---|---|
1452
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
1 |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
2 // Copyright (c) 2009-2009 by Digital Mars |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
3 // All Rights Reserved |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
4 // written by Walter Bright |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
5 // http://www.digitalmars.com |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
6 // License for redistribution is by either the Artistic License |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
7 // in artistic.txt, or the GNU General Public License in gnu.txt. |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
8 // See the included readme.txt for details. |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
9 |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
10 #ifndef ASYNC_H |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
11 #define ASYNC_H |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
12 |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
13 #if __DMC__ |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
14 #pragma once |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
15 #endif |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
16 |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
17 |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
18 /******************* |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
19 * Simple interface to read files asynchronously in another |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
20 * thread. |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
21 */ |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
22 |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
23 struct AsyncRead |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
24 { |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
25 static AsyncRead *create(size_t nfiles); |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
26 void addFile(File *file); |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
27 void start(); |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
28 int read(size_t i); |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
29 static void dispose(AsyncRead *); |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
30 }; |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
31 |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
32 |
638d16625da2
LDC 2 compiles again.
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
33 #endif |