public bool Compare(Token op, TokenValue right, out string error)
{
switch (op.TokenType)
{
case TokenType.CompEq:
return(Equal(right.Value, out error));
case TokenType.CompGt:
return(Greater(right.Value, out error));
case TokenType.CompGe:
return(Greater(right.Value, out error) || Equal(right.Value, out error));
case TokenType.CompLt:
return(!Equal(right.Value, out error) && !Greater(right.Value, out error));
case TokenType.CompLe:
return(!Greater(right.Value, out error));
case TokenType.CompNe:
return(!Equal(right.Value, out error));
default:
error = $@"Invalid compare operator ""{op.Text}""";
return(false);
}
}
public static TokenValue Load(Token left, IDictionary <string, EntityProperty> data)
{
if (!left.IsData())
{
return(null);
}
if (left.TokenType == TokenType.GuidLiteral)
{
return(TokenValue.FromGuid(left.Text));
}
if (left.TokenType == TokenType.DateTimeLiteral)
{
return(TokenValue.FromDateTime(left.Text));
}
if (left.TokenType == TokenType.DoubleLiteral)
{
return(TokenValue.FromDouble(left.Text));
}
if (left.TokenType == TokenType.IntLiteral)
{
return(TokenValue.FromInt(left.Text));
}
if (left.TokenType == TokenType.LongLiteral)
{
return(TokenValue.FromLong(left.Text));
}
if (left.TokenType == TokenType.StringLiteral)
{
return(TokenValue.FromString(left.Text));
}
if (data.TryGetValue(left.Text, out EntityProperty value))
{
return(new TokenValue(value));
}
return(new TokenValue());
}