objectTypeFromClassMirror function

  1. @deprecated
GraphQLObjectType objectTypeFromClassMirror (ClassMirror mirror)

Implementation

@deprecated
GraphQLObjectType objectTypeFromClassMirror(ClassMirror mirror) {
  if (_cache[mirror.reflectedType] != null) {
    return _cache[mirror.reflectedType] as GraphQLObjectType;
  } else {}

  var fields = <GraphQLObjectField>[];
  var ready = <Symbol, MethodMirror>{};
  var forward = <Symbol, MethodMirror>{};

  void walkMap(Map<Symbol, MethodMirror> map) {
    for (var name in map.keys) {
      var methodMirror = map[name];
      var exclude = _getExclude(name, methodMirror);
      var canAdd = name != #hashCode &&
          name != #runtimeType &&
          !methodMirror.isPrivate &&
          exclude?.canSerialize != true;

      if (methodMirror.isGetter && canAdd) {
        fields.add(fieldFromGetter(name, methodMirror, exclude, mirror));
      }
    }
  }

  bool isReady(TypeMirror returnType) {
    var canContinue = returnType.reflectedType != mirror.reflectedType;

    if (canContinue &&
        returnType.isAssignableTo(reflectType(Iterable)) &&
        returnType.typeArguments.isNotEmpty &&
        !isReady(returnType.typeArguments[0])) {
      canContinue = false;
    }

    return canContinue;
  }

  void prepReadyForward(Map<Symbol, MethodMirror> map) {
    map.forEach((name, methodMirror) {
      if (methodMirror.isGetter &&
          name != #_identityHashCode &&
          name != #runtimeType &&
          name != #hashCode &&
          MirrorSystem.getName(name) != '_identityHashCode') {
        var returnType = methodMirror.returnType;

        if (isReady(returnType)) {
          ready[name] = methodMirror;
        } else {
          forward[name] = methodMirror;
        }
      }
    });
  }

  prepReadyForward(mirror.instanceMembers);

  walkMap(ready);

  if (mirror.isAbstract) {
    var decls = <Symbol, MethodMirror>{};

    mirror.declarations.forEach((name, decl) {
      if (decl is MethodMirror) {
        decls[name] = decl;
      }
    });

    ready.clear();
    forward.clear();
    prepReadyForward(decls);
    walkMap(ready);
    //walkMap(decls);
  }

  var inheritsFrom = <GraphQLObjectType>[];
  var primitiveTypes = const <Type>[
    String,
    bool,
    num,
    int,
    double,
    Object,
    dynamic,
    Null,
    Type,
    Symbol
  ];

  void walk(ClassMirror parent) {
    if (!primitiveTypes.contains(parent.reflectedType)) {
      if (parent.isAbstract) {
        var obj = convertDartType(parent.reflectedType);

        if (obj is GraphQLObjectType && !inheritsFrom.contains(obj)) {
          inheritsFrom.add(obj);
        }
      }

      walk(parent.superclass);
      parent.superinterfaces.forEach(walk);
    }
  }

  walk(mirror.superclass);
  mirror.superinterfaces.forEach(walk);

  var result = _cache[mirror.reflectedType];

  if (result == null) {
    result = objectType(
      MirrorSystem.getName(mirror.simpleName),
      fields: fields,
      isInterface: mirror.isAbstract,
      interfaces: inheritsFrom,
      description: _getDescription(mirror.metadata),
    );
    _cache[mirror.reflectedType] = result;
    walkMap(forward);
  }

  return result as GraphQLObjectType;
}