// Resolve for AutoResolve.Default templates.
// These only have access to the {sys} builtin variable and don't get access to trigger binding data.
internal static BindingDataResolver GetBuiltinTemplateResolver(string originalValue, INameResolver nameResolver, Validator validator)
{
string resolvedValue = nameResolver.ResolveWholeString(originalValue);
var template = BindingTemplate.FromString(resolvedValue);
if (!template.HasParameters)
{
// No { } tokens, bind eagerly up front.
validator(originalValue);
}
SystemBindingData.ValidateStaticContract(template);
// For static default contracts, we only have access to the built in binding data.
return((newAttr, bindingData) =>
{
var newValue = template.Bind(SystemBindingData.GetSystemBindingData(bindingData));
validator(newValue);
return newValue;
});
}
// Create a bindingContext.
// parameters takes precedence over existingBindingData.
internal static BindingContext NewBindingContext(
ValueBindingContext context,
IReadOnlyDictionary <string, object> existingBindingData,
IDictionary <string, object> parameters)
{
// if bindingData was a mutable dictionary, we could just add it.
// But since it's read-only, must create a new one.
Dictionary <string, object> bindingData = new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase);
var funcContext = context.FunctionContext;
var methodName = funcContext.MethodName;
if (existingBindingData != null)
{
foreach (var kv in existingBindingData)
{
bindingData[kv.Key] = kv.Value;
}
}
if (parameters != null)
{
foreach (var kv in parameters)
{
bindingData[kv.Key] = kv.Value;
}
}
// Add 'sys' binding data.
var sysBindingData = new SystemBindingData
{
MethodName = methodName
};
sysBindingData.AddToBindingData(bindingData);
BindingContext bindingContext = new BindingContext(context, bindingData);
return(bindingContext);
}
