internal ExpressionData Dynamic(string expressionText, CompiledScope scope)
{
var expression = ToExpression(expressionText, scope);
return(ExpressionData.CreateDynamic(expression, scope));
}
public IEnumerable <ExpressionToken> ApplySemantics(ScriptVariableTable variableTable, IEnumerable <InputToken> tokenStream)
{
var tokens = tokenStream.ToList();
PreprocessSemantics(ref tokens);
var rv = new List <ExpressionToken>(tokens.Count());
foreach (var token in tokens)
{
if (token.OperationType == TranspileTest.OperationType.Operator)
{
var t = OperatorToOpcode(token);
rv.Add(t);
}
else
{
switch (token.TokenType)
{
// TODO Add variable lookups for this we might want some kind of index?
// To be stored with the expression?
case SemanticTokenType.FunctionCall:
{
var t = new ExpressionToken
{
TokenType = token.TokenType,
OperationType = OperationType.FunctionCall,
Precedence = 9
};
var function = m_HostCallTable.GetFunctionByName(token.TokenValue);
t.Data.Int = function.Id;
rv.Add(t);
break;
}
case SemanticTokenType.FunctionArgumentSeperator:
{
rv.Add(new ExpressionToken {
TokenType = token.TokenType, OperationType = OperationType.Operand
});
break;
}
case SemanticTokenType.Symbol:
{
var symbol = HostSymbolTable.GetSymbolByName(token.TokenValue);
var expressionData = new ExpressionData()
{
Int = symbol.SymbolId
};
rv.Add(new ExpressionToken {
TokenType = token.TokenType, OperationType = OperationType.Operator, Data = expressionData, Precedence = 9
});
break;
}
default:
{
var t = new ExpressionToken
{
TokenType = token.TokenType,
OperationType = OperationType.Operand
};
if (!t.IsBracket())
{
if (t.TokenType == SemanticTokenType.VariableName)
{
t.Data.Guid = variableTable.GetGuid(token.TokenValue);
}
else
{
t.Data.Float = float.Parse(token.TokenValue);
}
}
rv.Add(t);
break;
}
}
}
}
return(rv);
}
