public IExpression Evaluate <T, U>(IBinaryExpression <T, U> ex, IContext context)
{
IBinaryFunctionExpression <T, U> TheFunction = ex.Function;
ILiteralExpression <T> literalLeft = this.get <T>(ex.Left, this, context);
ILiteralExpression <T> literalRight = this.get <T>(ex.Right, this, context);
ILiteralBinaryFunctionExpression <T, U> literalBinaryFunction = this.get <T, U>(ex.Function, this, context);
return(literalBinaryFunction.Invoke(literalLeft.Item, literalRight.Item));
}
private ILiteralBinaryFunctionExpression <T, U> get <T, U>(IBinaryFunctionExpression <T, U> expression, IEvaluator ev, IContext context)
{
IFunctionExpression <T, U> ex = expression;
while (!ex.IsLiteral)
{
ex = ex.Evaluate(this, context);
}
return(ex as ILiteralBinaryFunctionExpression <T, U>);
}
