Beispiel #1
0
        public override bool Build(ref CodeNode _this, int expressionDepth, Dictionary <string, VariableDescriptor> variables, CodeContext codeContext, InternalCompilerMessageCallback message, FunctionInfo stats, Options opts)
        {
            var res = base.Build(ref _this, expressionDepth, variables, codeContext, message, stats, opts);

            if (!res && _this == this)
            {
                if (_left is StringConcatenation)
                {
                    _this = _left;
                    var temp = (_left as StringConcatenation)._parts;
                    Array.Resize(ref temp, temp.Length + 1);
                    temp[temp.Length - 1] = _right;
                    (_left as StringConcatenation)._parts = temp;
                }
                else if (_right is StringConcatenation)
                {
                    _this = _right;
                    var temp = (_right as StringConcatenation)._parts;
                    Array.Resize(ref temp, temp.Length + 1);
                    Array.Copy(temp, 0, temp, 1, temp.Length - 1);
                    temp[0] = _left;
                    (_right as StringConcatenation)._parts = temp;
                }
                else
                {
                    if (_left.ContextIndependent && _left.ResultType == PredictedType.String)
                    {
                        if (_left.Evaluate(null).ToString().Length == 0)
                        {
                            _this = new ConvertToString(_right);
                        }
                        else
                        {
                            _this = new StringConcatenation(new[] { _left, _right });
                        }
                    }
                    else if (_right.ContextIndependent && _right.ResultType == PredictedType.String)
                    {
                        if (_right.Evaluate(null).ToString().Length == 0)
                        {
                            _this = new ConvertToString(_left);
                        }
                        else
                        {
                            _this = new StringConcatenation(new[] { _left, _right });
                        }
                    }
                    else if (_left.ResultType == PredictedType.String ||
                             _right.ResultType == PredictedType.String)
                    {
                        _this = new StringConcatenation(new[] { _left, _right });
                    }
                }
            }

            return(res);
        }
Beispiel #2
0
        public override bool Build(ref CodeNode _this, int expressionDepth, Dictionary <string, VariableDescriptor> variables, CodeContext codeContext, CompilerMessageCallback message, FunctionInfo stats, Options opts)
        {
            var res = base.Build(ref _this, expressionDepth, variables, codeContext, message, stats, opts);

            if (!res && _this == this)
            {
                if (_left is StringConcatenation)
                {
                    _this = _left;
                    (_left as StringConcatenation)._parts.Add(_right);
                }
                else if (_right is StringConcatenation)
                {
                    _this = _right;
                    (_right as StringConcatenation)._parts.Insert(0, _left);
                }
                else
                {
                    if (_left.ContextIndependent && _left.Evaluate(null)._valueType == JSValueType.String)
                    {
                        if (_left.Evaluate(null).ToString().Length == 0)
                        {
                            _this = new ConvertToString(_right);
                        }
                        else
                        {
                            _this = new StringConcatenation(new List <Expression>()
                            {
                                _left, _right
                            });
                        }
                    }
                    else if (_right.ContextIndependent && _right.Evaluate(null)._valueType == JSValueType.String)
                    {
                        if (_right.Evaluate(null).ToString().Length == 0)
                        {
                            _this = new ConvertToString(_left);
                        }
                        else
                        {
                            _this = new StringConcatenation(new List <Expression>()
                            {
                                _left, _right
                            });
                        }
                    }
                }
            }
            return(res);
        }