// возвращает MethodDeclarationParameter
public override object VisitFormalParameter([NotNull] DoshikParser.FormalParameterContext context)
{
_compilationContext.SetParsingAntlrContext(context);
var parameter = new MethodDeclarationParameter(_currentMethodDeclaration.Parameters);
var scope = parameter.Parent.Scope;
parameter.IsOutput = context.OUT() != null;
var foundType = GetTypeNameVisitor.Apply(_compilationContext, context.typeType());
foundType.ThrowIfNotFound(_compilationContext);
var variable = new Variable(parameter)
{
Type = foundType.DataType,
Name = context.parameterName.Text
};
if (scope.FindVariableByName(variable.Name, true) != null)
{
throw _compilationContext.ThrowCompilationError($"parameter { variable.Name } is already defined");
}
scope.Variables[variable.Name] = variable;
parameter.Variable = variable;
return(parameter);
}
/// <summary>
/// Visit a parse tree produced by <see cref="DoshikParser.formalParameter"/>.
/// <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 VisitFormalParameter([NotNull] DoshikParser.FormalParameterContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="DoshikParser.formalParameter"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitFormalParameter([NotNull] DoshikParser.FormalParameterContext context)
{
}
