private bool ValidateFunction(GenericFunction term, out StyleValueFunction func)
{
func = StyleValueFunction.Unknown;
if (term.Arguments.Length == 0)
{
m_Errors.AddSemanticError(StyleSheetImportErrorCode.MissingFunctionArgument, string.Format(glossary.missingFunctionArgument, term.Name), m_CurrentLine);
return(false);
}
if (term.Name == k_VariableFunctionName)
{
func = StyleValueFunction.Var;
return(ValidateVarFunction(term));
}
try
{
func = StyleValueFunctionExtension.FromUssString(term.Name);
}
catch (System.Exception)
{
var prop = m_Builder.currentProperty;
m_Errors.AddValidationWarning(string.Format(glossary.unknownFunction, term.Name, prop.name), prop.line);
return(false);
}
return(true);
}
private bool ValidateFunction(GenericFunction term, out StyleValueFunction func)
{
func = StyleValueFunction.Unknown;
if (term.Arguments.Length == 0)
{
m_Errors.AddSemanticError(StyleSheetImportErrorCode.MissingFunctionArgument, term.Name);
return(false);
}
if (term.Name == k_VariableFunctionName)
{
func = StyleValueFunction.Var;
return(ValidateVarFunction(term));
}
try
{
func = StyleValueFunctionExtension.FromUssString(term.Name);
}
catch (Exception)
{
var prop = m_Builder.currentProperty;
m_Errors.AddValidationWarning($"Unknown function {term.Name} in declaration {prop.name}: {term.Name}", prop.line);
return(false);
}
return(true);
}
private static void AddValues(StyleSheetBuilderHelper helper, IEnumerable <Value> values)
{
foreach (var value in values)
{
switch (value.ValueType)
{
case StyleValueType.Keyword:
helper.builder.AddValue(value.AsKeyword());
break;
case StyleValueType.Color:
helper.builder.AddValue(value.AsColor());
break;
case StyleValueType.Float:
helper.builder.AddValue(value.AsFloat());
break;
case StyleValueType.Dimension:
helper.builder.AddValue(value.AsDimension());
break;
case StyleValueType.Enum:
case StyleValueType.Variable:
case StyleValueType.String:
case StyleValueType.ResourcePath:
helper.builder.AddValue(value.AsString(), value.ValueType);
break;
case StyleValueType.Function:
// First param: function name
// Second param: number of arguments
// Rest of args: must be saved as values.
var functionValue = value as Function;
helper.builder.AddValue(StyleValueFunctionExtension.FromUssString(functionValue.AsString()));
var nbArgs = functionValue.args.Count - 1;
for (var argIndex = 0; argIndex < functionValue.args.Count; ++argIndex)
{
nbArgs += functionValue.args[argIndex].Length;
}
helper.builder.AddValue(nbArgs);
for (var argIndex = 0; argIndex < functionValue.args.Count; ++argIndex)
{
AddValues(helper, functionValue.args[argIndex]);
if (argIndex < functionValue.args.Count - 1)
{
helper.builder.AddValue(value.AsString(), StyleValueType.FunctionSeparator);
}
}
break;
default:
throw new Exception("Unhandled value type: " + value.ValueType);
}
}
}