mcs/class/Microsoft.JScript/Microsoft.JScript/VariableStatement.cs

   1 //
   2 // VariableStatement.cs: The AST representation of a VariableStatement.
   3 //
   4 // Author:
   5 //      Cesar Octavio Lopez Nataren
   6 //
   7 // (C) 2003, Cesar Octavio Lopez Nataren, <cesar@ciencias.unam.mx>
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.Collections;
  32 using System.Text;
  33 using System;
  34
  35 namespace Microsoft.JScript {
  36
  37         public class VariableStatement : AST {
  38
  39                 internal ArrayList var_decls;
  40
  41                 internal VariableStatement (AST parent, int line_number)
  42                 {
  43                         this.parent = parent;
  44                         this.line_number = line_number;
  45                         var_decls = new ArrayList ();
  46                 }
  47
  48
  49                 internal void Add (VariableDeclaration varDecl)
  50                 {
  51                         var_decls.Add (varDecl);
  52                 }
  53
  54
  55                 public override string ToString ()
  56                 {
  57                         StringBuilder sb = new StringBuilder ();
  58
  59                         foreach (VariableDeclaration var_decl in var_decls)
  60                                 sb.Append (var_decl.ToString () + " ");
  61
  62                         return sb.ToString ();
  63                 }
  64
  65                 internal override void Emit (EmitContext ec)
  66                 {
  67                         int i, size = var_decls.Count;
  68
  69                         for (i = 0; i < size; i++)
  70                                 ((VariableDeclaration) var_decls [i]).Emit (ec);
  71                 }
  72
  73                 internal override bool Resolve (IdentificationTable context)
  74                 {
  75                         VariableDeclaration tmp_decl;
  76                         int i, n = var_decls.Count;
  77                         bool r = true;
  78
  79                         for (i = 0; i < n; i++) {
  80                                 tmp_decl = (VariableDeclaration) var_decls [i];
  81                                 r &= tmp_decl.Resolve (context);
  82                         }
  83                         return r;
  84                 }
  85         }
  86 }