Microsoft.JScript.ForIn.ForIn C# (CSharp) Method

      internal ForIn(Context context, AST var, AST initializer, AST collection, AST body)
        : base(context) {
        if (var != null){
          this.var = var;
          this.inExpressionContext = this.var.context.Clone();
        }else{
          VariableDeclaration decl = (VariableDeclaration)initializer;
          this.var = decl.identifier;
          if (decl.initializer == null)
            decl.initializer = new ConstantWrapper(null, null); //Suppress warning
          this.inExpressionContext = initializer.context.Clone();
        }
        this.initializer = initializer;
        this.collection = collection;
        this.inExpressionContext.UpdateWith(this.collection.context);
        this.body = body;
        this.completion = new Completion();
      }