Ejemplo n.º 1
0
        private bool IsScriptParameter(string expectedReturnType, ParserRuleContext context)
        {
            // This script doesn't have parameters.
            if (_parameterLookup.Count == 0)
            {
                return false;
            }

            string text = context.GetTextSanitized();

            // The script doesn't have a parameter with this name.
            if (!_parameterLookup.TryGetValue(text, out ParameterInfo info))
            {
                return false;
            }

            string returnType = DetermineReturnType(info, expectedReturnType, context);

            if(returnType is null)
            {
                throw new CompilerException($"Failed to determine the return type of the parameter {text}.", context);
            }

            ushort returnTypeOpcode = _opcodes.GetTypeInfo(returnType).Opcode;
            ushort opcode = returnTypeOpcode;

            // (In)Equality functions are special
            if(context.Parent.Parent is HS_Gen1Parser.CallContext grandparent)
            {
                string funcName = grandparent.callID().GetTextSanitized();
                var funcInfo = _opcodes.GetFunctionInfo(funcName);
                if(funcInfo != null)
                {
                    if (funcInfo[0].Group == "Equality" || funcInfo[0].Group == "Inequality")
                    {
                        opcode = GetEqualityArgumentOP(returnTypeOpcode);
                    }
                }
            }

            var expression = new ScriptExpression
            {
                Index = _currentIndex,
                Opcode = opcode,
                ReturnType = returnTypeOpcode,
                Type = ScriptExpressionType.ParameterReference,
                Next = DatumIndex.Null,
                StringOffset = _strings.Cache(info.Name),
                Value = new LongExpressionValue(info.Opcode),
                LineNumber = GetLineNumber(context)
            };
            EqualityPush(info.ReturnType);
            OpenDatumAddExpressionIncrement(expression);

            return true;
        }
Ejemplo n.º 2
0
        private bool IsGlobalsReference(string expectedType, ParserRuleContext context)
        {
            string text = context.GetTextSanitized();
            GlobalInfo globalInfo = _opcodes.GetGlobalInfo(text);
            IExpressionValue value;

            // Engine global.
            if(globalInfo != null)
            {
                //ushort[] arr = { 0xFFFF, globalInfo.MaskedOpcode };
                value = new LongExpressionValue(0xFFFF, globalInfo.MaskedOpcode);
            }
            // Map global.
            else if(_mapGlobalsLookup.ContainsKey(text))
            {
                globalInfo = _mapGlobalsLookup[text];
                value = new LongExpressionValue(globalInfo.Opcode);
            }
            // Not a global...
            else if (expectedType == TypeHelper.GlobalsReference)
            {
                throw new CompilerException($"A global reference was expected, but no global with the name \"{text}\" could be found.", context);
            }
            else
            {
                return false;
            }

            string returnType = DetermineReturnType(globalInfo, expectedType, context);
            ushort returnTypeOpcode = _opcodes.GetTypeInfo(returnType).Opcode;
            ushort opcode = GetGlobalOpCode(returnTypeOpcode, context);
            var expression = new ScriptExpression
            {
                Index = _currentIndex,
                Opcode = opcode,
                ReturnType = returnTypeOpcode,
                Type = ScriptExpressionType.GlobalsReference,
                Next = DatumIndex.Null,
                StringOffset = _strings.Cache(text),
                Value = value,
                LineNumber = GetLineNumber(context)
            };
            OpenDatumAddExpressionIncrement(expression);

            return true;
        }
Ejemplo n.º 3
0
 private void WriteContext(string level, ParserRuleContext context, CompilerContextAction action)
 {
     string innerMessage = $"Line: {context.Start.Line}, {action}: \"{context.GetTextSanitized()}\"";
     WriteEntry(level, innerMessage);
 }