Better Block names

lib/src/code_generator/objc_block.dart

@@ -13,6 +13,19 @@ class ObjCBlock extends BindingType {
   final ObjCBuiltInFunctions builtInFunctions;
 
   ObjCBlock({
+    required String usr,
+    required Type returnType,
+    required List<Type> argTypes,
+    required ObjCBuiltInFunctions builtInFunctions,
+  }) : this._(
+      usr: usr,
+      name: _getBlockName(returnType, argTypes),
+      returnType: returnType,
+      argTypes: argTypes,
+      builtInFunctions: builtInFunctions,
+      );
+
+  ObjCBlock._({
     required String usr,
     required String name,
     required this.returnType,
@@ -24,6 +37,12 @@ class ObjCBlock extends BindingType {
           name: name,
         );
 
+  static final _illegalNameChar = RegExp(r'[^0-9a-zA-Z]');
+  static String _typeName(Type type) =>
+      type.toString().replaceAll(_illegalNameChar, ''); // .getDartType(w)
+  static String _getBlockName(Type returnType, List<Type> argTypes) =>
+      'ObjCBlock_${_typeName(returnType)}_${argTypes.map(_typeName).join('_')}';
+
   @override
   BindingString toBindingString(Writer w) {
     final s = StringBuffer();

lib/src/config_provider/config_spec.dart

@@ -591,7 +591,7 @@ class StringConfigSpec<RE extends Object?> extends ConfigSpec<String, RE> {
     if (!o.checkType<String>(log: log)) {
       return false;
     }
-    if (_regexp != null && !_regexp.hasMatch(o.value as String)) {
+    if (!(_regexp?.hasMatch(o.value as String) ?? true)) {
       if (log) {
         _logger.severe(
             "Expected value of key '${o.pathString}' to match pattern $pattern (Input - ${o.value}).");

lib/src/header_parser/sub_parsers/objc_block_parser.dart

@@ -32,7 +32,6 @@ ObjCBlock parseObjCBlock(clang_types.CXType cxtype) {
 
   return ObjCBlock(
     usr: usr.toString(),
-    name: 'ObjCBlock',
     returnType: returnType,
     argTypes: argTypes,
     builtInFunctions: objCBuiltInFunctions,