public MixinEvaluationResult(MixinDefinition mixin, MixinCall call, Scope closure, MixinGuardScope guardScope)
{
this.mixin = mixin;
this.call = call;
this.closure = closure;
this.guardScope = guardScope;
}
public bool Matches(MixinDefinition mixinDefinition, EvaluationContext context)
{
if (!mixinDefinition.Selector.Equals(Selector))
{
// Selectors don't match
return(false);
}
bool hasVarargs = mixinDefinition.Parameters.LastOrDefault() is VarargsParameter;
if (mixinDefinition.Parameters.Count < arguments.Count && !hasVarargs)
{
// No match: too many arguments
return(false);
}
var positionalArguments = arguments.OfType <PositionalArgument>().ToList();
if (!PatternMatch(context, positionalArguments, mixinDefinition.Parameters))
{
return(false);
}
var namedArguments = arguments.OfType <NamedArgument>().ToList();
var remainingParameters = mixinDefinition.Parameters.Skip(positionalArguments.Count).OfType <MixinParameter>().ToList();
var matchedParams = remainingParameters
.Where(p => namedArguments.Any(arg => string.Equals(p.Name, arg.ParameterName, StringComparison.OrdinalIgnoreCase)))
.ToList();
if (matchedParams.Count != namedArguments.Count)
{
// No match: one or more named arguments had a name that doesn't match a parameter
return(false);
}
// True if any remaining parameters have a default value
return(remainingParameters.Except(matchedParams).All(p => p.HasDefaultValue));
}
public bool Matches(MixinDefinition mixinDefinition)
{
return(mixinDefinition.Arity == 0 ||
mixinDefinition.Parameters.All(p => p.HasDefaultValue || p is VarargsParameter));
}
