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annotate dmd2/aliasthis.c @ 1650:40bd4a0d4870

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Update to work with LLVM 2.7. Removed use of dyn_cast, llvm no compiles without exceptions and rtti by default. We do need exceptions for the libconfig stuff, but rtti isn't necessary (anymore). Debug info needs to be rewritten, as in LLVM 2.7 the format has completely changed. To have something to look at while rewriting, the old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means that you have to define this to compile at the moment. Updated tango 0.99.9 patch to include updated EH runtime code, which is needed for LLVM 2.7 as well.
author Tomas Lindquist Olsen
date Wed, 19 May 2010 12:42:32 +0200
parents 638d16625da2
children
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1452
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1
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2 // Compiler implementation of the D programming language
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3 // Copyright (c) 2009-2009 by Digital Mars
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4 // All Rights Reserved
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5 // written by Walter Bright
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6 // http://www.digitalmars.com
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7 // License for redistribution is by either the Artistic License
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8 // in artistic.txt, or the GNU General Public License in gnu.txt.
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9 // See the included readme.txt for details.
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10
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11 #include <stdio.h>
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12 #include <assert.h>
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13
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14 #include "mars.h"
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15 #include "identifier.h"
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16 #include "aliasthis.h"
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17 #include "scope.h"
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18 #include "aggregate.h"
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19 #include "dsymbol.h"
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20
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21 #if DMDV2
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22
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23
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24 AliasThis::AliasThis(Loc loc, Identifier *ident)
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25 : Dsymbol(NULL) // it's anonymous (no identifier)
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26 {
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27 this->loc = loc;
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28 this->ident = ident;
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29 }
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30
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31 Dsymbol *AliasThis::syntaxCopy(Dsymbol *s)
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32 {
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33 assert(!s);
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34 /* Since there is no semantic information stored here,
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35 * we don't need to copy it.
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36 */
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37 return this;
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38 }
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39
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40 void AliasThis::semantic(Scope *sc)
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41 {
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42 Dsymbol *parent = sc->parent;
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43 if (parent)
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44 parent = parent->pastMixin();
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45 AggregateDeclaration *ad = NULL;
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46 if (parent)
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47 ad = parent->isAggregateDeclaration();
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48 if (ad)
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49 {
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50 if (ad->aliasthis)
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51 error("there can be only one alias this");
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52 assert(ad->members);
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53 Dsymbol *s = ad->search(loc, ident, 0);
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54 ad->aliasthis = s;
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55 }
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56 else
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57 error("alias this can only appear in struct or class declaration, not %s", parent ? parent->toChars() : "nowhere");
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58 }
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59
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60 const char *AliasThis::kind()
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61 {
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62 return "alias this";
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63 }
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64
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65 void AliasThis::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
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66 {
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67 buf->writestring("alias ");
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68 buf->writestring(ident->toChars());
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69 buf->writestring(" this;\n");
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70 }
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71
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72 #endif