internal Expression BuildGlobalCall(string name, Expression[] args)
{
var argTypes = args.Select(a => a.Type).ToArray();
var methodInfo = typeof(Globals).GetMethod(name, argTypes);
if (methodInfo == null)
{
throw ODataParser.SyntaxError(this.Parser.Lexer, String.Format("Unknown function: {0} ({1})", name, string.Join(", ", argTypes.Select(x => x.Name))));
}
return(Expression.Call(methodInfo, args));
}
private bool ReadString()
{
while (true)
{
if (!ReadTo("'"))
{
throw ODataParser.SyntaxError(this, "Unterminated string");
}
if (SrcIndex >= SrcLength || Src[SrcIndex] != Chars.APOS)
{
return(true);
}
if (!NextChar())
{
throw ODataParser.SyntaxError(this, "Unterminated string");
}
}
}
public ExpressionBuilder(ODataParser parser)
{
this.Parser = parser;
}
internal Expression BuildMemberPath(List <string> steps)
{
Type type;
int k;
if (steps[0].Contains('.'))
{
type = TypeHandler.GetType(steps[0]);
if (type == null)
{
throw ODataParser.SyntaxError(this.Parser.Lexer, "Unknown type: " + steps[0]);
}
k = 1;
}
else
{
if (steps.Count == 1 && steps[0] == "ContentType")
{
steps.Add("Name");
}
type = typeof(ContentRepository.Content);
k = 0;
}
Expression expression = this.x; // Expression.Parameter(type, "x");
Expression lastExpr = null;
Expression lastLastExpr = null;
string lastAspectName = null;
for (var i = k; i < steps.Count; i++)
{
lastLastExpr = lastExpr;
lastExpr = expression;
if (lastAspectName == null)
{
var member = type.GetProperty(steps[i]);
expression = member == null?GetDynamicMember(type, steps[i]) : Expression.MakeMemberAccess(member.GetGetMethod().IsStatic ? null : expression, member);
if (expression == null)
{
lastAspectName = steps[i];
}
}
else
{
var aspect = Aspect.LoadAspectByName(lastAspectName);
var fieldSetting = aspect.FieldSettings.Where(f => f.Name == steps[i]).FirstOrDefault();
if (fieldSetting == null)
{
throw new InvalidOperationException("Field not found: " + lastAspectName + "." + steps[i]);
}
var fieldName = lastAspectName + "." + steps[i];
var fieldType = fieldSetting.FieldDataType;
expression = CreateFieldOfContentAccessExpression(lastLastExpr, fieldName, fieldType);
lastAspectName = null;
}
type = expression == null ? null : expression.Type;
}
if (expression == null)
{
throw new InvalidOperationException("Field not found: " + lastAspectName);
}
return(expression);
}