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annotate trunk/src/dil/ast/Node.d @ 676:c4e3a34e40f1

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Added new module dil.doc.Doc. Moved some doc related methods in dil.ast.Node to dil.doc.Doc.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Fri, 18 Jan 2008 19:28:37 +0100
parents 64fec49651cf
children 19a34b69cc7d
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1 /++
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2 Author: Aziz Köksal
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3 License: GPL3
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4 +/
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fa6d3c52757d Moved SyntaxTree.d to new package 'ast'.
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5 module dil.ast.Node;
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6
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7 import common;
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8
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9 public import dil.lexer.Token;
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10 public import dil.ast.NodesEnum;
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11
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12 /// This string is mixed into the constructor of a class that inherits from Node.
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13 const string set_kind = `this.kind = mixin("NodeKind." ~ typeof(this).stringof);`;
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14
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15 class Node
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16 {
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17 NodeCategory category;
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18 NodeKind kind;
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19 Node[] children;
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20 Token* begin, end;
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21
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22 this(NodeCategory category)
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23 {
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24 assert(category != NodeCategory.Undefined);
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25 this.category = category;
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26 }
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27
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28 void setTokens(Token* begin, Token* end)
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29 {
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30 this.begin = begin;
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31 this.end = end;
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32 }
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33
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34 Class setToks(Class)(Class node)
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35 {
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36 node.setTokens(this.begin, this.end);
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37 return node;
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38 }
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40 void addChild(Node child)
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41 {
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42 assert(child !is null, "failed in " ~ this.classinfo.name);
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43 this.children ~= child;
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44 }
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45
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46 void addOptChild(Node child)
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47 {
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48 child is null || addChild(child);
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49 }
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51 void addChildren(Node[] children)
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52 {
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53 assert(children !is null && delegate{
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54 foreach (child; children)
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55 if (child is null)
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56 return false;
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57 return true; }(),
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58 "failed in " ~ this.classinfo.name
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59 );
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60 this.children ~= children;
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61 }
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62
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63 void addOptChildren(Node[] children)
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64 {
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65 children is null || addChildren(children);
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66 }
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67
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68 Class Is(Class)()
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69 {
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70 if (kind == mixin("NodeKind." ~ typeof(Class).stringof))
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71 return cast(Class)cast(void*)this;
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72 return null;
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73 }
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74
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75 Class to(Class)()
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76 {
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77 return cast(Class)cast(void*)this;
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78 }
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79 }