/// <summary>Parameter that's a single named value that's one of a set of options</summary>
internal static Value Single(string name, ValueArray oneOf)
{
ValueString vName = new ValueString(name);
PatternData data = new PatternData(vName);
data.OneOf = oneOf;
return vName;
}
/// <summary>Parameter that's a single named value with a default</summary>
internal static Value Single(string name, Value theDefault)
{
ValueString vName = new ValueString(name);
PatternData data = new PatternData(vName);
data.Default = theDefault;
return vName;
}
/// <summary>Parameter that's a single named value of the given type with a default</summary>
internal static Value Single(string name, ValueType type, Value theDefault)
{
ValueString vName = new ValueString(name);
PatternData data = new PatternData(vName);
data.Type = ValueClasses.ClassOf(type);
data.Default = theDefault;
return vName;
}
/// <summary>Parameter that's a single named value</summary>
internal static Value Single(string name)
{
ValueString vName = new ValueString(name);
PatternData data = new PatternData(vName);
return vName;
}
/// <summary>Parameter that's the remainder of an array of a given type</summary>
internal static Value Rest(string name, ValueType type)
{
ValueString vName = new ValueString(name);
PatternData data = new PatternData(vName);
data.Type = ValueClasses.ClassOf(type);
data.UseRest = true;
return vName;
}
/// <summary>Parameter that's the remainder of an array or map</summary>
internal static Value Rest(string name)
{
ValueString vName = new ValueString(name);
PatternData data = new PatternData(vName);
data.UseRest = true;
return vName;
}
/// <summary>Parameter that indicates that a "body" is required, i.e. an array of strings or parsed lines</summary>
internal static Value Body()
{
ValueString vName = new ValueString("l3.body");
PatternData data = new PatternData(vName);
// todo: data.ValueType = ValueType.RawList | ValueType.String;
return vName;
}
/// <summary>
/// Score a parameter based on type annotations, etc.
/// </summary>
private int CalcPoints(Value value)
{
ValueString pattern = value as ValueString;
if (pattern == null)
return 0;
PatternData data = new PatternData(pattern);
string theType = data.Type;
if (theType == ValueClasses.ClassOf(ValueType.Nil))
return 0;
else if (theType == ValueClasses.ClassOf(ValueType.Number))
return 1;
return 2;
}