/// <summary>
/// Returns ONLY method declaration string. Not intended to work for lambda methods so returns NULL for them.
/// Todo: refactor: actually lambda identification must be part of method lister. Bu it would require to make MethodLister generic from underlying source type (e.g. MethodLister(Of MethodDefinitionSyntax))
/// </summary>
/// <param name="method"></param>
/// <returns></returns>
public static string GetMethodDeclarationString(IMethodInfoProvider method)
{
try
{
if (method.IsPartialMethodWithoutBody)
{
return(null);
}
if (method.IsAbstractClassOrInterfaceMember)
{
return(null);
}
if (method.IsExternal)
{
return(null);
}
string methodNamePart = GetMethodNamePart(method);
if (methodNamePart == null)
{
return(null);
}
string typeName = GetFullyQualifiedTypeName(method.DeclaringType);
if (typeName == null)
{
return(null);
}
string parametersPart = GetMemberParametersPart(method);
var parts = new[]
{
typeName,
methodNamePart,
parametersPart
};
string methodDeclarationString = string.Concat(parts);
if (MethodNameNormalizer.SkipProcessingMethod(methodDeclarationString))
{
return(null);
}
return(methodDeclarationString);
}
catch
{
Console.WriteLine("Exception stringifying method. Method details: \r\n" + method);
throw;
}
}
private static string GetPropertyParametersPart(IMethodInfoProvider method)
{
if (method.MethodType == MethodType.PropertyGetter)
{
return("()");
}
if (method.MethodType == MethodType.PropertySetter)
{
// string.Format("({0} value)", GetTypeName(method.GetParameters().First().ParameterType))
return(GetMethodParametersPart(method));
}
throw new InvalidOperationException();
}
private static string GetMemberParametersPart(IMethodInfoProvider method)
{
switch (method.MethodType)
{
case MethodType.Method:
return(GetMethodParametersPart(method));
case MethodType.PropertyGetter:
return(GetPropertyParametersPart(method));
case MethodType.PropertySetter:
return(GetPropertyParametersPart(method));
default:
throw new NotImplementedException();
}
}
private static string GetMethodParametersPart(IMethodInfoProvider method)
{
var sb = new StringBuilder();
IParameterInfoProvider[] parameters = method.GetParameters();
sb.Append("(");
for (int i = 0; i < parameters.Length; i++)
{
if (i > 0)
{
sb.Append(", ");
}
var p = parameters[i];
// only the last method parametrer should be checked for "params" prefix
if ((parameters.Length - 1) == i && p.IsParams)
{
sb.Append("params ");
}
else if (p.IsOut)
{
sb.Append("out ");
}
else if (p.IsRef)
{
sb.Append("ref ");
}
string typeName = GetTypeName(p.ParameterType);
sb.Append(p.IsDynamic ? "dynamic" : typeName);
if (p.IsArray && !typeName.EndsWith("[]"))
{
sb.Append("[]");
}
sb.Append(" ");
sb.Append(p.Name);
}
sb.Append(")");
var methodParametersPart = sb.ToString();
return(methodParametersPart);
}
private static string GetMethodNamePart(IMethodInfoProvider method)
{
var sb = new StringBuilder();
sb.Append(TypeFromMethodDelimiter);
sb.Append(MethodNameNormalizer.Normalize(method.Name));
if (method.IsGenericMethodDefinition)
{
sb.Append("<");
sb.Append(string.Join(", ", method.GetGenericArguments().Select(a => a.ToString())));
sb.Append(">");
}
string methodNamePart = sb.ToString();
// exclude compiler-generated lambda methods like "SomeTestType::<MethodWithLambdasInside>b__0(object actParam)"
if (MethodNameNormalizer.IsLambdaMethod(methodNamePart))
{
return(null);
}
return(methodNamePart);
}