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annotate dmd/AliasThis.d @ 191:52188e7e3fb5

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Fixed deprecated features, now compiles with DMD2.058 Also changed Array allocation policy: Now doesn't reallocate but malloc's, followed by a memcpy (no free). (this fixes a crash while compiling druntime. Same bug in dmd)
author korDen@korDen-pc
date Sun, 25 Mar 2012 03:11:12 +0400
parents b0d41ff5e0df
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1 module dmd.AliasThis;
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3 import dmd.common;
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4 import dmd.Dsymbol;
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5 import dmd.Identifier;
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6 import dmd.Loc;
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7 import dmd.Scope;
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8 import dmd.OutBuffer;
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9 import dmd.HdrGenState;
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10 import dmd.AggregateDeclaration;
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12 import dmd.DDMDExtensions;
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13
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14 class AliasThis : Dsymbol
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15 {
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16 mixin insertMemberExtension!(typeof(this));
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17
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18 // alias Identifier this;
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19 Identifier ident;
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20
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21 this(Loc loc, Identifier ident)
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22 {
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23 register();
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24 super(null); // it's anonymous (no identifier)
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25 this.loc = loc;
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26 this.ident = ident;
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27 }
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29 override Dsymbol syntaxCopy(Dsymbol s)
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30 {
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31 assert(!s);
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32 /* Since there is no semantic information stored here,
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33 * we don't need to copy it.
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34 */
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35 return this;
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36 }
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37
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38 override void semantic(Scope sc)
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39 {
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40 Dsymbol parent = sc.parent;
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41 if (parent)
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42 parent = parent.pastMixin();
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43 AggregateDeclaration ad = null;
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44 if (parent)
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45 ad = parent.isAggregateDeclaration();
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46 if (ad)
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47 {
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48 if (ad.aliasthis)
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49 error("there can be only one alias this");
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50 assert(ad.members);
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51 Dsymbol s = ad.search(loc, ident, 0);
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52 ad.aliasthis = s;
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53 }
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54 else
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55 error("alias this can only appear in struct or class declaration, not %s", parent ? parent.toChars() : "nowhere");
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56 }
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57
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58 override string kind()
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59 {
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60 assert(false);
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61 }
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63 override void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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64 {
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65 assert(false);
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66 }
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68 AliasThis isAliasThis() { return this; }
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69 }