public MacroDefinition Resolve(string macroName)
{
MacroDefinition macroDefinition;
var key = macroName.Replace("-", "").Replace("_", "_");
if (!_macros.TryGetValue(key, out macroDefinition))
{
var name = key.Substring(0, 1).ToUpper() + key.Substring(1).ToLower();
macroDefinition = new MacroDefinition()
{
Name = name
};
_macros.Add(macroDefinition.Name, macroDefinition);
}
return(macroDefinition);
}
public void PushMacro(MacroDefinition macroDefinition, string hookName)
{
Push(CodeContextTypes.MethodCall, macroDefinition.Name, new Bag <string>().Set <MacroDefinition>("definition", macroDefinition).Set <string>("hook", hookName));
}
private void ProcessMacroMethod(MacroAttribute[] macroAttributes, MethodInfo method)
{
var parameters = method.GetParameters();
bool requiresHook = macroAttributes.FirstOrDefault(m => m.RequiresHook)?.RequiresHook ?? false;
bool requiresState = macroAttributes.FirstOrDefault(m => m.RequiresState)?.RequiresState ?? false;
int maxAttributes = parameters.Length;
int minAttributes = 0;
int parameterNumber = 1;
foreach (var parameter in parameters)
{
if (!parameter.IsOptional)
{
if (parameter.DefaultValue == null)
{
minAttributes++;
}
}
if (parameter.ParameterType.Name == "IState`1")
{
requiresState = true;
if (parameterNumber != 1)
{
throw new InvalidOperationException($"Only the first parameter of macro method {method.Name} can be used to pass template state IState<>");
}
}
if (parameter.ParameterType.Name == "HookDelegate")
{
requiresHook = true;
if (parameterNumber != maxAttributes)
{
throw new InvalidOperationException($"Only the last parameter of macro method {method.Name} can be used to pass the hook");
}
}
parameterNumber++;
}
MacroDefinition definition = new MacroDefinition()
{
Name = method.Name,
MinArguments = minAttributes,
MaxArguments = maxAttributes,
BranchOf = macroAttributes.FirstOrDefault(m => m.BranchOf != null)?.BranchOf,
RequiresHook = requiresHook,
RequiresState = requiresState,
Defined = true
};
_macros.Add(definition.Name, definition);
foreach (var macroAttribute in macroAttributes)
{
if (macroAttribute.Alias != null)
{
MacroDefinition aliasedDefinition;
if (_macros.TryGetValue(macroAttribute.Alias, out aliasedDefinition))
{
if (definition == aliasedDefinition)
{
throw new InvalidOperationException($"Template base {_templateType.FullName} macro {method.Name} is attempting to redefine the macro alias \"{macroAttribute.Alias}\" which is already used by the macro {aliasedDefinition.Name}");
}
else
{
throw new InvalidOperationException($"Template base {_templateType.FullName} macro {method.Name} has a duplicate macro alias \"{macroAttribute.Alias}\"");
}
}
else
{
_macros.Add(macroAttribute.Alias, definition);
}
}
}
if (requiresState)
{
definition.MinArguments--;
definition.MaxArguments--;
}
if (requiresHook)
{
definition.MinArguments--;
definition.MaxArguments--;
}
}