|
public MoveIndex ( int index ) : |
||
| index | int | |
| return | ||
private static ExpressionNode ParseAgainstModel(Type modelType, string expression, ExpressionScope expressionScope, IMemberLocator memberLocator, SourceLocation location)
{
var dotIndex = expression.IndexOf('.');
if (dotIndex >= 0)
{
var subModel = ParseAgainstModel(modelType, expression.Substring(0, dotIndex), expressionScope, memberLocator, location.SetLength(dotIndex));
return SyntaxTreeExpression.SubModel(
subModel,
ParseAgainstModel(subModel.ResultType, expression.Substring(dotIndex + 1), ExpressionScope.CurrentModelOnStack, memberLocator, location.MoveIndex(dotIndex + 1)),
location
);
}
if (expression.EndsWith("()"))
{
var func = memberLocator.FindMethod(modelType, expression.Substring(0, expression.Length - 2));
if (func != null) return SyntaxTreeExpression.Function(modelType, func.Name, location, expressionScope);
}
var prop = memberLocator.FindProperty(modelType, expression);
if (prop != null)
return SyntaxTreeExpression.Property(modelType, prop.Name, location, expressionScope);
var field = memberLocator.FindField(modelType, expression);
if (field != null)
return SyntaxTreeExpression.Field(modelType, field.Name, location, expressionScope);
if (IsLateBoundAcceptingType(modelType))
return SyntaxTreeExpression.LateBound(expression, location, memberLocator, false, expressionScope);
throw new VeilParserException(
$"Unable to parse model expression '{expression}' againt model '{modelType.Name}'", location);
}
private static ExpressionNode ParseAgainstModel(Type modelType, string expression, ExpressionScope expressionScope, int recursionLevel, IMemberLocator memberLocator, SourceLocation location)
{
var dotIndex = expression.IndexOf('.');
if (dotIndex >= 0)
{
var subModel = ParseAgainstModel(modelType, expression.Substring(0, dotIndex), expressionScope, recursionLevel, memberLocator, location.SetLength(dotIndex));
return SyntaxTreeExpression.SubModel(
subModel,
ParseAgainstModel(subModel.ResultType, expression.Substring(dotIndex + 1), ExpressionScope.CurrentModelOnStack, 0, memberLocator, location.MoveIndex(dotIndex + 1)),
location
);
}
if (expression.EndsWith("()"))
{
var func = memberLocator.FindMember(modelType, expression.Substring(0, expression.Length - 2), MemberTypes.Method);
if (func != null) return SyntaxTreeExpression.Function(modelType, func.Name, location, expressionScope);
}
var prop = memberLocator.FindMember(modelType, expression, MemberTypes.Property | MemberTypes.Field);
if (prop != null)
{
switch (prop.MemberType)
{
case MemberTypes.Property: return SyntaxTreeExpression.Property(modelType, prop.Name, location, expressionScope, recursionLevel);
case MemberTypes.Field: return SyntaxTreeExpression.Field(modelType, prop.Name, location, expressionScope, recursionLevel);
}
}
if (IsLateBoundAcceptingType(modelType))
return SyntaxTreeExpression.LateBound(expression, location, memberLocator, false, expressionScope, recursionLevel);
throw new VeilParserException(String.Format("Unable to parse model expression '{0}' againt model '{1}'", expression, modelType.Name), location);
}
public static ExpressionNode Parse(HandlebarsParserState state, HandlebarsBlockStack blockStack, SourceLocation location, string expression, IMemberLocator memberLocator = null)
{
int recursionLevel = 0;
memberLocator = memberLocator ?? MemberLocator.Default;
expression = expression.Trim();
if (expression == "this")
{
return SyntaxTreeExpression.Self(blockStack.GetCurrentModelType(), location);
}
if (expression.StartsWith("../"))
{
var blockNode = blockStack.FirstNode();
while (expression.StartsWith("../"))
{
var parentBlockNode = blockStack.GetParentNode(blockNode);
if (parentBlockNode != null)
{
blockNode = parentBlockNode;
expression = expression.Substring(3);
location = location.MoveIndex(3);
}
recursionLevel++;
}
return ParseAgainstModel(blockStack.GetCurrentModelType(blockNode), expression, ExpressionScope.ModelOfParentScope, recursionLevel, memberLocator, location);
}
return ParseAgainstModel(blockStack.GetCurrentModelType(), expression, ExpressionScope.CurrentModelOnStack, recursionLevel, memberLocator, location);
}
public static ExpressionNode Parse(HandlebarsParserState state, HandlebarsBlockStack blockStack, SourceLocation location, string expression, IMemberLocator memberLocator = null)
{
memberLocator = memberLocator ?? MemberLocator.Default;
expression = expression.Trim();
if (expression == "this")
{
return SyntaxTreeExpression.Self(blockStack.GetCurrentModelType(), location, ExpressionScope.CurrentModelOnStack);
}
if (expression.StartsWith("../"))
{
return ParseAgainstModel(blockStack.GetParentModelType(), expression.Substring(3), ExpressionScope.ModelOfParentScope, memberLocator, location.MoveIndex(3));
}
return ParseAgainstModel(blockStack.GetCurrentModelType(), expression, ExpressionScope.CurrentModelOnStack, memberLocator, location);
}
