private SoqlLiteralValueModifiers ParseLiteralValueModifiers()
{
SoqlLiteralValueModifiers retVal = new SoqlLiteralValueModifiers();
string typeName = tokenizer.EatKeyword();
FieldDataType typeOverride = (FieldDataType)FieldDataType.Parse(typeof(FieldDataType), typeName);
retVal.DataTypeOverride = typeOverride;
return(retVal);
}
public static SoqlLiteralValueModifiers ParseLiteralValueModifiers(string expr)
{
SoqlParser parser = new SoqlParser(expr);
SoqlLiteralValueModifiers e = parser.ParseLiteralValueModifiers();
if (!parser.tokenizer.IsEOF())
{
throw new SoqlException("Unexpected token: " + parser.tokenizer.TokenValue, parser.tokenizer.TokenPosition);
}
return(e);
}
public SoqlParameterLiteralExpression(int parameterPos, SoqlLiteralValueModifiers modifiers)
{
this.ParameterPosition = parameterPos;
this.Modifiers = modifiers;
}
private SoqlExpression ParseLiteralExpression()
{
if (tokenizer.IsToken(SoqlTokenType.LeftParen))
{
tokenizer.GetNextToken();
SoqlExpression e;
if (tokenizer.IsKeyword("select"))
{
e = ParseQuery();
}
else
{
e = ParseExpression();
}
tokenizer.Expect(SoqlTokenType.RightParen);
return(e);
}
;
if (tokenizer.IsNumber())
{
string numberString = (string)tokenizer.TokenValue;
tokenizer.GetNextToken();
if (numberString.IndexOf('.') >= 0)
{
return(new SoqlLiteralExpression(Double.Parse(numberString, CultureInfo.InvariantCulture)));
}
else
{
return(new SoqlLiteralExpression(Int32.Parse(numberString, CultureInfo.InvariantCulture)));
}
}
if (tokenizer.TokenType == SoqlTokenType.String)
{
SoqlExpression e = new SoqlLiteralExpression(tokenizer.StringTokenValue);
tokenizer.GetNextToken();
return(e);
}
if (tokenizer.TokenType == SoqlTokenType.LeftCurlyBrace)
{
tokenizer.GetNextToken();
int val = Int32.Parse((string)tokenizer.TokenValue);
tokenizer.GetNextToken();
if (tokenizer.TokenType == SoqlTokenType.Colon)
{
tokenizer.GetNextToken();
SoqlLiteralValueModifiers modifiers = ParseLiteralValueModifiers();
tokenizer.Expect(SoqlTokenType.RightCurlyBrace);
return(new SoqlParameterLiteralExpression(val, modifiers));
}
else
{
tokenizer.Expect(SoqlTokenType.RightCurlyBrace);
return(new SoqlParameterLiteralExpression(val));
}
}
if (tokenizer.TokenType == SoqlTokenType.Asterisk)
{
tokenizer.GetNextToken();
return(new SoqlAsteriskExpression(null));
}
if (tokenizer.TokenType == SoqlTokenType.Keyword)
{
string keyword = tokenizer.EatKeyword();
if (0 == String.Compare(keyword, "not", true, System.Globalization.CultureInfo.InvariantCulture))
{
return(new SoqlBooleanNegationExpression((SoqlBooleanExpression)ParseBooleanPredicate()));
}
if (0 == String.Compare(keyword, "null", true, System.Globalization.CultureInfo.InvariantCulture))
{
return(new SoqlNullLiteral());
}
if (0 == String.Compare(keyword, "true", true, System.Globalization.CultureInfo.InvariantCulture))
{
return(new SoqlBooleanLiteralExpression(true));
}
if (0 == String.Compare(keyword, "false", true, System.Globalization.CultureInfo.InvariantCulture))
{
return(new SoqlBooleanLiteralExpression(false));
}
/*if (tokenizer.IsKeyword("as"))
* {
* tokenizer.GetNextToken();
* string alias = tokenizer.EatKeyword();
* string className = keyword;
*
* return ParseSimplifiedQuery(className, alias);
* }
*/
if (tokenizer.IsKeyword("where"))
{
// className WHERE expr
return(ParseSimplifiedQuery(keyword, String.Empty));
}
return(ParsePathLikeExpression(keyword));
}
if (tokenizer.TokenType == SoqlTokenType.Sub)
{
tokenizer.GetNextToken();
return(new SoqlUnaryNegationExpression(ParseLiteralExpression()));
}
throw new SoqlException("Unexpected token: " + tokenizer.TokenValue, tokenizer.TokenPosition);
}
