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annotate compiler.js @ 11:5447cff52da6

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author Mike Pavone <pavone@retrodev.com>
date Wed, 21 Mar 2012 21:42:38 -0700
parents 04ae32e91598
children 59e83296e331
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04ae32e91598 Move compiler and test page related code out of parser.js
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1 function indent(str)
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2 {
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3 return str.split('\n').join('\n\t');
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4 }
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5
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6 function osymbols(parent)
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7 {
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8 this.parent = parent;
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9 this.names = {};
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10 this.lastname = null;
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11 }
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12 osymbols.prototype.find = function(name) {
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13 if (name in this.names) {
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14 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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15 return {
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16 type: 'foreign',
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17 def: this.names[name]
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18 };
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19 }
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20 return {
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21 type: 'self',
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22 def: this.names[name],
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23 };
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24 } else if(this.parent) {
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25 var ret = this.parent.find(name);
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26 if (ret) {
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27 if(ret.type == 'self') {
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28 ret.type = 'parent';
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29 ret.depth = 1;
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30 } else if(ret.type == 'parent') {
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31 ret.depth++;
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32 }
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33 }
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34 return ret;
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35 }
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36 return null;
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37 };
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38 osymbols.prototype.defineMsg = function(name, def) {
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39 this.lastname = name;
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40 this.names[name] = def;
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41 }
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42 osymbols.prototype.parentObject = function() {
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43 if (!this.parent) {
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44 return 'null';
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45 }
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46 return 'this';
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47 }
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48
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49 function lsymbols(parent)
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50 {
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51 this.parent = parent;
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52 this.names = {};
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53 this.lastname = null;
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54 this.needsSelfVar = false;
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55 }
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56 lsymbols.prototype.find = function(name) {
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57 if (name in this.names) {
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58 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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59 return {
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60 type: 'foreign',
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61 def: this.names[name]
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62 };
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63 }
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64 return {
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65 type: 'local',
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66 def: this.names[name]
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67 };
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68 } else if(this.parent) {
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69 var ret = this.parent.find(name);
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70 if (ret && ret.type == 'local') {
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71 ret.type = 'upvar';
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72 }
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73 return ret;
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74 }
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75 return null;
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76 };
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77 lsymbols.prototype.defineVar = function(name, def) {
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78 this.lastname = name;
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79 this.names[name] = def;
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80 };
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81 lsymbols.prototype.selfVar = function() {
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82 if (this.parent && this.parent instanceof lsymbols) {
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83 this.parent.needsSelf();
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84 return 'self';
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85 } else {
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86 return 'this';
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87 }
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88 };
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89 lsymbols.prototype.needsSelf = function() {
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90 if (this.parent && this.parent instanceof lsymbols) {
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91 this.parent.needsSelf();
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92 } else {
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93 this.needsSelfVar = true;
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94 }
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95 };
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96