public override int VisitReturn_stmt(BRAQParser.Return_stmtContext context)
{
if (current_method == null)
{
Console.WriteLine("Huh!?");
throw new Exception();
}
if (context.return_value != null)
{
context.return_value.Accept(this);
il.Emit(OpCodes.Stloc, return_holder);
}
il.Emit(OpCodes.Br_S, method_end.Value);
return(0);
}
public override Type VisitReturn_stmt(BRAQParser.Return_stmtContext context)
{
Type expected_type = result_box.methodInfo.return_type;
Type actual_type;
if (context.return_value != null)
{
actual_type = context.return_value.Accept(this);
}
else
{
actual_type = typeof(void);
}
if (expected_type != actual_type)
{
Console.WriteLine($"return type mismatch: expected {expected_type} but got {actual_type}");
throw new TypeMismatchError();
}
return(type_dict[context] = expected_type);
}
/// <summary>
/// Visit a parse tree produced by <see cref="BRAQParser.return_stmt"/>.
/// <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 VisitReturn_stmt([NotNull] BRAQParser.Return_stmtContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="BRAQParser.return_stmt"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitReturn_stmt([NotNull] BRAQParser.Return_stmtContext context)
{
}
