public override Node VisitPropertyDeclaration(DustParser.PropertyDeclarationContext context)
{
Expression initializer = null;
string name = context.identifierName().GetText();
bool isMutable = context.declaration().GetText().Contains("mut");
if (context.expression() != null)
{
initializer = (Expression)Visit(context.expression());
}
if (visitorContext.ContainsPropety(name))
{
visitorContext.ErrorHandler.ThrowError(new SyntaxError($"Identifier '{name}' is already defined", context.identifierName().GetRange()));
return(null);
}
IdentifierExpression identifier = new IdentifierExpression(name, isMutable, context.identifierName().GetRange());
visitorContext.AddProperty(identifier);
return(new PropertyDeclaration(initializer, identifier, context.GetRange()));
}
/// <summary>
/// Visit a parse tree produced by <see cref="DustParser.propertyDeclaration"/>.
/// <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 VisitPropertyDeclaration([NotNull] DustParser.PropertyDeclarationContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="DustParser.propertyDeclaration"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitPropertyDeclaration([NotNull] DustParser.PropertyDeclarationContext context)
{
}
