public override ASTNode VisitProperty([NotNull] CoolParser.PropertyContext context)
{
AttributeNode node = new AttributeNode(context)
{
Formal = Visit(context.formal()) as FormalNode
};
if (context.expression() != null)
{
node.AssignExp = Visit(context.expression()) as ExpressionNode;
}
else if (node.Formal.Type.Text == "Int")
{
node.AssignExp = new IntNode(context, "0");
}
else if (node.Formal.Type.Text == "Bool")
{
node.AssignExp = new BoolNode(context, "false");
}
else if (node.Formal.Type.Text == "String")
{
node.AssignExp = new StringNode(context, "");
}
else
{
node.AssignExp = new VoidNode(node.Formal.Type.Text);
}
return(node);
}
public override ASTNode VisitProperty([NotNull] CoolParser.PropertyContext context)
{
var attributeNode = new AttributeNode(context);
attributeNode.Formal = Visit(context.formal()) as FormalNode;
if (context.expr() != null)
{
attributeNode.DessignateExpression = Visit(context.expr()) as ExpressionNode;
}
else
{
if (attributeNode.Formal.Type.Text == "Int")
{
attributeNode.DessignateExpression = new IntegerNode(context.formal().Start.Line,
context.formal().Start.Column)
{
Value = 0
}
}
;
else if (attributeNode.Formal.Type.Text == "Bool")
{
attributeNode.DessignateExpression = new BoolNode(context.formal().Start.Line,
context.formal().Start.Column)
{
Value = false
}
}
;
else if (attributeNode.Formal.Type.Text == "String")
{
attributeNode.DessignateExpression = new StringNode(context.formal().Start.Line,
context.formal().Start.Column)
{
Value = ""
}
}
;
else
{
attributeNode.DessignateExpression = new VoidNode(attributeNode.Formal.Type.Text);
}
}
return(attributeNode);
}
/// <summary>
/// Visit a parse tree produced by <see cref="CoolParser.property"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitProperty([NotNull] CoolParser.PropertyContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="CoolParser.property"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitProperty([NotNull] CoolParser.PropertyContext context)
{
}
