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comparison trunk/src/dil/ast/Visitor.d @ 797:cf2ad5df025c

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Added documentation comments. Removed Lexer.loadKeywords() and revised Lexer.isReservedIdentifier(). Also removed Lexer.getTokens(). Renamed keywords to g_reservedIds. Renamed classNames to g_classNames. Added PRE and DMDBUG macros.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Fri, 29 Feb 2008 22:51:24 +0100
parents 5e3ef1b2011c
children
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796:f7688996bf08 797:cf2ad5df025c
19 /// Expression visit(CommaExpression){return null;}; 19 /// Expression visit(CommaExpression){return null;};
20 /// --- 20 /// ---
21 char[] generateVisitMethods() 21 char[] generateVisitMethods()
22 { 22 {
23 char[] text; 23 char[] text;
24 foreach (className; classNames) 24 foreach (className; g_classNames)
25 text ~= "returnType!(\""~className~"\") visit("~className~" node){return node;}\n"; 25 text ~= "returnType!(\""~className~"\") visit("~className~" node){return node;}\n";
26 return text; 26 return text;
27 } 27 }
28 // pragma(msg, generateAbstractVisitMethods()); 28 // pragma(msg, generateAbstractVisitMethods());
29 29
61 /// } 61 /// }
62 /// --- 62 /// ---
63 char[] generateDispatchFunctions() 63 char[] generateDispatchFunctions()
64 { 64 {
65 char[] text; 65 char[] text;
66 foreach (className; classNames) 66 foreach (className; g_classNames)
67 text ~= "returnType!(\""~className~"\") visit"~className~"(Visitor visitor, "~className~" c)\n" 67 text ~= "returnType!(\""~className~"\") visit"~className~"(Visitor visitor, "~className~" c)\n"
68 "{ return visitor.visit(c); }\n"; 68 "{ return visitor.visit(c); }\n";
69 return text; 69 return text;
70 } 70 }
71 // pragma(msg, generateDispatchFunctions()); 71 // pragma(msg, generateDispatchFunctions());
81 --- 81 ---
82 +/ 82 +/
83 char[] generateVTable() 83 char[] generateVTable()
84 { 84 {
85 char[] text = "["; 85 char[] text = "[";
86 foreach (className; classNames) 86 foreach (className; g_classNames)
87 text ~= "cast(void*)&visit"~className~",\n"; 87 text ~= "cast(void*)&visit"~className~",\n";
88 return text[0..$-2]~"]"; // slice away last ",\n" 88 return text[0..$-2]~"]"; // slice away last ",\n"
89 } 89 }
90 // pragma(msg, generateVTable()); 90 // pragma(msg, generateVTable());
91 91
100 static 100 static
101 mixin(generateDispatchFunctions()); 101 mixin(generateDispatchFunctions());
102 102
103 /// The table holding function pointers to the second dispatch functions. 103 /// The table holding function pointers to the second dispatch functions.
104 static const void*[] dispatch_vtable = mixin(generateVTable()); 104 static const void*[] dispatch_vtable = mixin(generateVTable());
105 static assert(dispatch_vtable.length == classNames.length, "vtable length doesn't match number of classes"); 105 static assert(dispatch_vtable.length == g_classNames.length, "vtable length doesn't match number of classes");
106 106
107 /// Looks up the second dispatch function for n and returns that. 107 /// Looks up the second dispatch function for n and returns that.
108 Node function(Visitor, Node) getDispatchFunction()(Node n) 108 Node function(Visitor, Node) getDispatchFunction()(Node n)
109 { 109 {
110 return cast(Node function(Visitor, Node))dispatch_vtable[n.kind]; 110 return cast(Node function(Visitor, Node))dispatch_vtable[n.kind];