Mercurial > projects > dang
annotate sema/ScopeBuilder.d @ 129:ed815b31479b
Added a Symbol
author | Anders Halager <halager@gmail.com> |
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date | Sat, 21 Jun 2008 20:41:18 +0200 |
parents | c0b531362ca6 |
children | 6545a8d59596 |
rev | line source |
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92
771ac63898e2
A few better parser errors plus renaming most of the sema classes to match that they do now. Some have changes a lot.
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parents:
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1 module sema.ScopeBuilder; |
1 | 2 |
14 | 3 import tango.io.Stdout, |
4 tango.core.Array : find; | |
1 | 5 |
26 | 6 public |
129 | 7 import sema.Scope, |
8 sema.Symbol; | |
1 | 9 |
59
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Make most of the tests pass again
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10 import sema.Visitor, |
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11 basic.SmallArray; |
1 | 12 |
92
771ac63898e2
A few better parser errors plus renaming most of the sema classes to match that they do now. Some have changes a lot.
Anders Johnsen <skabet@gmail.com>
parents:
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13 class ForwardReference : Visitor!(void) |
1 | 14 { |
101
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First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
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15 override void visit(Module[] modules) |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
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parents:
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16 { |
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parents:
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17 this.modules = modules; |
129 | 18 inFunctionBodyStack.push(false); |
19 foreach (mod; modules) | |
20 { | |
21 current = mod; | |
22 foreach (decl; mod.decls) | |
23 visitDecl(decl); | |
24 } | |
101
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First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
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25 } |
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parents:
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26 |
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27 override void visitFuncDecl(FuncDecl d) |
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28 { |
129 | 29 |
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Now Decl's have a DType type(), and should use varType and returnType to get the old type id
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30 visitExp(d.returnType); |
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Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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31 visitExp(d.identifier); |
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32 foreach (arg; d.funcArgs) |
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33 visitDecl(arg); |
129 | 34 |
35 inFunctionBodyStack.push(true); | |
36 | |
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Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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37 foreach (stmt; d.statements) |
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38 visitStmt(stmt); |
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39 |
129 | 40 inFunctionBodyStack.pop(); |
41 | |
42 d.sym = current.symbol.createMember(d.identifier.get, d.type); | |
53
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Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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43 } |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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44 |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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45 override void visitVarDecl(VarDecl d) |
da551f90e03f
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46 { |
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Can declare outside functions and call c-functions
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47 visitExp(d.varType); |
86
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Fixed a bug that made arrays as params fail big time
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48 visitExp(d.identifier); |
82
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49 |
53
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Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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50 if (d.init) |
da551f90e03f
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51 visitExp(d.init); |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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52 |
129 | 53 DType t = typeOf(d.varType, d.env); |
54 /* | |
55 if (inFunctionBodyStack.peek()) | |
56 { | |
57 Stdout.formatln("?? {}, {}, {}", d.varType.get, d.identifier.get, t); | |
58 auto find = d.env.find(d.varType); | |
59 d.sym = d.env.find(d.varType).sym; | |
60 } | |
61 else | |
62 */ | |
63 d.sym = current.symbol.createMember(d.identifier.get, t); | |
53
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Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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64 } |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
Anders Johnsen <skabet@gmail.com>
parents:
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65 |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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66 override void visitStructDecl(StructDecl s) |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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67 { |
129 | 68 auto st = s.env.findType(s.identifier).asStruct; |
69 s.sym = current.symbol.createMember(s.identifier.get, st); | |
70 //s.env.set(s.identifier, s); | |
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Cleanup of codegen, better support for operators a few bugfixes
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71 |
129 | 72 auto old = current.symbol; |
73 current.symbol = s.sym; | |
74 inFunctionBodyStack.push(false); | |
75 super.visitStructDecl(s); | |
76 inFunctionBodyStack.pop(); | |
77 current.symbol = old; | |
55
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Now structs are somewhat useable to use.
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78 |
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Cleanup of codegen, better support for operators a few bugfixes
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79 foreach (decl; s.decls) |
129 | 80 { |
81 DType type; | |
82 char[] name; | |
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83 if (auto varDecl = cast(VarDecl)decl) |
129 | 84 { |
85 type = typeOf(varDecl.varType, varDecl.env); | |
86 name = varDecl.identifier.get; | |
87 } | |
107
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Cleanup of codegen, better support for operators a few bugfixes
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88 else if (auto fd = cast(FuncDecl)decl) |
129 | 89 { |
90 type = fd.type; | |
91 name = fd.identifier.get; | |
92 } | |
93 st.addMember(type, name); | |
94 } | |
53
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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95 } |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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96 |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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97 DType typeOf(Identifier id, Scope sc) |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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98 { |
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Now able of --ast-dump-code with Pointer types and also codeGen int* x;
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99 if(auto i = cast(PointerIdentifier)id) |
83
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Parse array indexing, and allow reading from arrays
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100 return (typeOf(i.pointerOf, sc)).getPointerTo(); |
129 | 101 else if(auto i = cast(ArrayIdentifier)id) |
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102 return typeOf(i.arrayOf, sc).getAsArray(i.size); |
53
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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103 return sc.findType(id); |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
Anders Johnsen <skabet@gmail.com>
parents:
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104 } |
101
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First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
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parents:
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105 |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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106 Module[] modules; |
129 | 107 Module current; |
108 SmallArray!(bool) inFunctionBodyStack; | |
53
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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109 } |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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110 |
129 | 111 /** |
112 Add scopes to everything, and add all identifiers that correspond to types. | |
113 Types/Symbols are added by ForwardReference. | |
114 **/ | |
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Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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parents:
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115 class ScopeBuilder : Visitor!(void) |
da551f90e03f
Added struct decl and forward ref. A note on structs: they need to make a new scope when declared. Otherwise you could access struct members as globals
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116 { |
101
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First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
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parents:
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117 static ModuleHandler mHandle; |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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118 |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
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119 static this() |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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120 { |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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121 mHandle = new ModuleHandler; |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
99
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122 } |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
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parents:
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123 |
1 | 124 this() |
125 { | |
101
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First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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126 } |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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127 |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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128 override void visit(Module[] modules) |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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129 { |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
99
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130 foreach(m ; modules) |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
99
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131 visitModule(m); |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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132 |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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133 auto fr = new ForwardReference(); |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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134 |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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135 fr.visit(modules); |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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136 } |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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137 |
129 | 138 private void registerBasicTypeTo(char[] n, DType t, Scope sc, Module m) |
139 { | |
140 sc.types[n] = t; | |
141 auto sym = m.symbol.createMember(n, t); | |
142 auto id = new Identifier(n); | |
143 id.env = sc; | |
144 auto decl = new DummyDecl(); | |
145 decl.sym = sym; | |
146 decl.env = sc; | |
147 sc.put(id, decl); | |
148 } | |
149 | |
101
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First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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150 override void visitModule(Module m) |
fea8d61a2451
First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents:
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151 { |
129 | 152 auto root = new Scope; |
153 table ~= root; | |
154 | |
155 m.symbol = new Symbol; | |
1 | 156 |
129 | 157 registerBasicTypeTo("void", DType.Void, root, m); |
158 registerBasicTypeTo("bool", DType.Bool, root, m); | |
159 registerBasicTypeTo("byte", DType.Byte, root, m); | |
160 registerBasicTypeTo("ubyte", DType.UByte, root, m); | |
161 registerBasicTypeTo("short", DType.Short, root, m); | |
162 registerBasicTypeTo("ushort", DType.UShort, root, m); | |
163 registerBasicTypeTo("int", DType.Int, root, m); | |
164 registerBasicTypeTo("uint", DType.UInt, root, m); | |
165 registerBasicTypeTo("long", DType.Long, root, m); | |
166 registerBasicTypeTo("ulong", DType.ULong, root, m); | |
167 | |
168 registerBasicTypeTo("char", DType.Char, root, m); | |
169 registerBasicTypeTo("wchar", DType.WChar, root, m); | |
170 registerBasicTypeTo("dchar", DType.DChar, root, m); | |
171 | |
172 registerBasicTypeTo("float", DType.Float, root, m); | |
173 registerBasicTypeTo("double", DType.Double, root, m); | |
174 registerBasicTypeTo("real", DType.Real, root, m); | |
119
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Non compileing commit. Work on floating points and casts
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175 |
99
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Imports and improved module statement
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176 current().inModule = m; |
101
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177 current().mHandle = mHandle; |
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178 mHandle.add(m); |
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179 m.env = current(); |
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180 super.visitModule(m); |
1 | 181 } |
182 | |
183 override void visitDecl(Decl d) | |
184 { | |
185 d.env = current(); | |
186 super.visitDecl(d); | |
187 } | |
188 | |
101
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189 override void visitImportDecl(ImportDecl i) |
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190 { |
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191 i.env.imports ~= i; |
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192 super.visitImportDecl(i); |
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193 } |
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194 |
1 | 195 override void visitStmt(Stmt s) |
196 { | |
197 s.env = current(); | |
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198 s.stmtIndex = s.env.stmtIndex; |
1 | 199 super.visitStmt(s); |
200 } | |
201 | |
202 override void visitExp(Exp e) | |
203 { | |
204 e.env = current(); | |
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205 e.stmtIndex = e.env.stmtIndex; |
1 | 206 super.visitExp(e); |
207 } | |
208 | |
209 override void visitFuncDecl(FuncDecl d) | |
210 { | |
129 | 211 current().put(d.identifier, d); |
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212 auto sc = push(); |
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213 |
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214 visitExp(d.returnType); |
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215 visitExp(d.identifier); |
1 | 216 d.env = current(); |
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217 sc.parentFunction = d; |
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218 foreach (arg; d.funcArgs) |
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219 visitDecl(arg); |
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220 foreach (stmt; d.statements) |
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221 { |
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222 sc.currentStmtIndex++; |
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223 visitStmt(stmt); |
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224 } |
14 | 225 pop(sc); |
1 | 226 } |
227 | |
228 override void visitVarDecl(VarDecl d) | |
229 { | |
24 | 230 if (d.init) |
231 visitExp(d.init); | |
232 | |
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233 if (need_push > 0 && current().parentFunction !is null) { |
24 | 234 push(); |
235 --need_push; | |
236 } | |
237 | |
1 | 238 auto sc = current(); |
129 | 239 sc.put(d.identifier, d); |
24 | 240 d.env = sc; |
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241 visitExp(d.varType); |
24 | 242 visitExp(d.identifier); |
1 | 243 } |
244 | |
22 | 245 override void visitStructDecl(StructDecl s) |
246 { | |
247 auto sc = current(); | |
129 | 248 sc.put(s.identifier, s); |
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249 s.env = sc; |
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250 auto type = new DStruct(s.identifier); |
129 | 251 |
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252 sc.types[s.identifier.get] = type; |
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253 |
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254 sc = push(); |
22 | 255 super.visitStructDecl(s); |
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256 pop(sc); |
22 | 257 } |
258 | |
14 | 259 override void visitDeclStmt(DeclStmt d) |
260 { | |
24 | 261 ++need_push; |
14 | 262 super.visitDeclStmt(d); |
263 } | |
24 | 264 private uint need_push = 0; |
14 | 265 |
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266 override void visitIfStmt(IfStmt s) |
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267 { |
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268 s.env = current(); |
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269 visitExp(s.cond); |
14 | 270 auto sc = push(); |
45 | 271 visitStmt(s.then_body); |
14 | 272 pop(sc); |
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273 |
45 | 274 if (s.else_body !is null) |
275 { | |
276 sc = push(); | |
277 visitStmt(s.else_body); | |
278 pop(sc); | |
279 } | |
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280 } |
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281 |
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282 override void visitWhileStmt(WhileStmt s) |
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283 { |
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284 s.env = current(); |
14 | 285 auto sc = push(); |
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286 super.visitWhileStmt(s); |
14 | 287 pop(sc); |
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288 } |
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289 |
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290 override void visitCompoundStmt(CompoundStatement s) |
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291 { |
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292 s.env = current(); |
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293 auto sc = push(); |
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294 super.visitCompoundStmt(s); |
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295 pop(sc); |
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296 } |
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297 |
1 | 298 private: |
299 Scope[] table; | |
300 | |
14 | 301 Scope push() |
1 | 302 { |
14 | 303 auto sc = new Scope(current()); |
304 table ~= sc; | |
305 return sc; | |
1 | 306 } |
307 | |
14 | 308 Scope pop(Scope sc = null) |
1 | 309 { |
14 | 310 if (sc !is null) |
311 { | |
312 table.length = table.find(sc); | |
313 return sc; | |
314 } | |
315 | |
1 | 316 auto res = table[$ - 1]; |
317 table.length = table.length - 1; | |
318 return res; | |
319 } | |
320 | |
321 Scope current() | |
322 { | |
323 return table[$ - 1]; | |
324 } | |
325 } | |
326 |