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comparison trunk/src/dil/semantic/Scope.d @ 798:c24be8d4f6ab

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Added documentation comments.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Sat, 01 Mar 2008 02:53:06 +0100
parents d33895f679eb
children
comparison
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797:cf2ad5df025c 798:c24be8d4f6ab
7 import dil.semantic.Symbol; 7 import dil.semantic.Symbol;
8 import dil.semantic.Symbols; 8 import dil.semantic.Symbols;
9 import dil.lexer.Identifier; 9 import dil.lexer.Identifier;
10 import common; 10 import common;
11 11
12 /// Builds a hierarchy of environments.
12 class Scope 13 class Scope
13 { 14 {
14 Scope parent; /// The surrounding scope, or null if this is the root scope. 15 Scope parent; /// The surrounding scope, or null if this is the root scope.
15 16
16 ScopeSymbol symbol; /// The current symbol with the symbol table. 17 ScopeSymbol symbol; /// The current symbol with the symbol table.
19 { 20 {
20 this.parent = parent; 21 this.parent = parent;
21 this.symbol = symbol; 22 this.symbol = symbol;
22 } 23 }
23 24
24 /++ 25 /// Find a symbol in this scope.
25 Find a symbol in this scope. 26 /// Params:
26 Params: 27 /// name = the name of the symbol.
27 name = the name of the symbol.
28 +/
29 Symbol lookup(Identifier* name) 28 Symbol lookup(Identifier* name)
30 { 29 {
31 return symbol.lookup(name); 30 return symbol.lookup(name);
32 } 31 }
33 32
34 /++ 33 /// Create a new inner scope and return that.
35 Create a new inner scope and return that.
36 +/
37 Scope enter(ScopeSymbol symbol) 34 Scope enter(ScopeSymbol symbol)
38 { 35 {
39 return new Scope(this, symbol); 36 return new Scope(this, symbol);
40 } 37 }
41 38
42 /++ 39 /// Destroy this scope and return the outer scope.
43 Destroy this scope and return the outer scope.
44 +/
45 Scope exit() 40 Scope exit()
46 { 41 {
47 auto sc = parent; 42 auto sc = parent;
48 // delete this; 43 // delete this;
49 return sc; 44 return sc;