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annotate dmd/CompileDeclaration.d @ 18:f2413c9183d1

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Implemented CompileDeclaration, UAddExp, UnionDeclaration.
author Robert Clipsham <robert@octarineparrot.com>
date Mon, 05 Apr 2010 19:16:14 +0100
parents 10317f0c89a5
children 460959608115
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1 module dmd.CompileDeclaration;
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2
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3 import dmd.AttribDeclaration;
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4 import dmd.Expression;
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5 import dmd.ScopeDsymbol;
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6 import dmd.Dsymbol;
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7 import dmd.Loc;
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8 import dmd.Scope;
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9 import dmd.OutBuffer;
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10 import dmd.HdrGenState;
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11 import dmd.TOK;
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12 import dmd.WANT;
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13 import dmd.StringExp;
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14 import dmd.Parser;
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16 // Mixin declarations
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17
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18 class CompileDeclaration : AttribDeclaration
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19 {
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20 Expression exp;
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22 ScopeDsymbol sd;
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23 int compiled;
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25 this(Loc loc, Expression exp)
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26 {
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27 super(null);
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28 this.loc = loc;
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29 this.exp = exp;
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30 this.sd = null;
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31 this.compiled = 0;
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32 }
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33
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34 Dsymbol syntaxCopy(Dsymbol s)
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35 {
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36 //printf("CompileDeclaration.syntaxCopy('%s')\n", toChars());
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37 CompileDeclaration sc = new CompileDeclaration(loc, exp.syntaxCopy());
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38 return sc;
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39 }
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40
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41 bool addMember(Scope sc, ScopeDsymbol sd, int memnum)
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42 {
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43 //printf("CompileDeclaration.addMember(sc = %p, memnum = %d)\n", sc, memnum);
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44 bool m = false;
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45 this.sd = sd;
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46 if (memnum == 0)
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47 { /* No members yet, so parse the mixin now
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48 */
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49 compileIt(sc);
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50 m |= AttribDeclaration.addMember(sc, sd, memnum);
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51 compiled = 1;
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52 }
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53 return m;
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54 }
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55
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56 void compileIt(Scope sc)
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57 {
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58 //printf("CompileDeclaration.compileIt(loc = %d)\n", loc.linnum);
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59 exp = exp.semantic(sc);
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60 exp = resolveProperties(sc, exp);
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61 exp = exp.optimize(WANT.WANTvalue | WANT.WANTinterpret);
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62 if (exp.op != TOK.TOKstring)
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63 { exp.error("argument to mixin must be a string, not (%s)", exp.toChars());
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64 }
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65 else
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66 {
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67 StringExp se = cast(StringExp)exp;
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68 se = se.toUTF8(sc);
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69 Parser p = new Parser(sc.module_, cast(ubyte *)se.string_, se.len, 0);
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70 p.loc = loc;
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71 p.nextToken();
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72 decl = p.parseDeclDefs(0);
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73 if (p.token.value != TOK.TOKeof)
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74 exp.error("incomplete mixin declaration (%s)", se.toChars());
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75 }
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76 }
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78 void semantic(Scope sc)
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79 {
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80 //printf("CompileDeclaration.semantic()\n");
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82 if (!compiled)
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83 {
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84 compileIt(sc);
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85 AttribDeclaration.addMember(sc, sd, 0);
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86 compiled = 1;
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87 }
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88 AttribDeclaration.semantic(sc);
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89 }
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91 void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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92 {
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93 buf.writestring("mixin(");
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94 exp.toCBuffer(buf, hgs);
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95 buf.writestring(");");
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96 buf.writenl();
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97 }
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98 }