Mercurial > projects > ldc
annotate dmd2/aliasthis.c @ 1622:a542ef277a84
Merge DMD r316: bugzilla 3628 can't cast null to int
---
dmd/constfold.c | 2 +-
dmd/optimize.c | 8 ++++----
2 files changed, 5 insertions(+), 5 deletions(-)
author | Leandro Lucarella <llucax@gmail.com> |
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date | Wed, 06 Jan 2010 15:18:22 -0300 |
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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 |