s-num lines-num-new"> 67 
+        except (Post.DoesNotExist, User.DoesNotExist):
68 
+            raise ValueError("Post or user not found")
69 
+        # Remove old rating from user, if any
70 
+        PostRating.objects.filter(post=post, user=user).delete()
71 
+        # Create new rating
72 
+        PostRating.objects.create(post=post, user=user, rating=rating)
73 
+
74 
+    def delete(self, post_id):
75 
+        try:
76 
+            obj = Post.objects.get(id=post_id)
77 
+            obj.delete()
78 
+        except Post.DoesNotExist:
79 
+            raise ValueError("Post not found")
80 
+
81 
+    def list(self, page=1, per_page=10, order_by="-created"):
82 
+        qs = Post.objects.all().order_by(order_by)
83 
+        total = qs.count()
84 
+        start = (page - 1) * per_page
85 
+        end = start + per_page
86 
+        from commu.entities.post import Post as DomainPost
87 
+        posts = []
88 
+        for obj in qs[start:end]:
89 
+            domain_post = DomainPost(
90 
+                author_id=str(obj.author.id),
91 
+                text=obj.text,
92 
+                images=obj.images,
93 
+                videos=obj.videos,
94 
+            )
95 
+            domain_post.id = str(obj.id)
96 
+            domain_post.ratings = [
97 
+                (str(r.user.id), r.rating)
98 
+                for r in obj.ratings.all()
99 
+            ]
100 
+            posts.append(domain_post)
101 
+        return posts, total
102 
+
103 
+    def update(self, post):
104 
+        try:
105 
+            obj = Post.objects.get(id=post.id)
106 
+            obj.text = post.text
107 
+            obj.images = post.images
108 
+            obj.videos = post.videos
109 
+            obj.save()
110 
+            # Optionally update ratings (if part of update)
111 
+        except Post.DoesNotExist:
112 
+            raise ValueError("Post not found")

+ 55 - 0
core/repositories/django_user_repository.py
查看文件 

@@ -0,0 +1,55 @@
1 
+from commu.interfaces.user_repository import UserRepository
2 
+from django.contrib.auth.models import User as DjangoUser
3 
+
4 
+class DjangoUserRepository(UserRepository):
5 
+    def add(self, user):
6 
+        # user: commu.entities.user.User
7 
+        # Map role to Django flags
8 
+        is_staff = user.role.value in ("admin", "user") if hasattr(user.role, "value") else user.role in ("admin", "user")
9 
+        is_superuser = user.role.value == "admin" if hasattr(user.role, "value") else user.role == "admin"
10 
+        obj = DjangoUser.objects.create_user(
11 
+            username=user.username,
12 
+            password=None,  # You may set/generate a password as needed!
13 
+            is_staff=is_staff,
14 
+            is_superuser=is_superuser,
15 
+        )
16 
+        user.id = str(obj.id)
17 
+        return user
18 
+
19 
+    def get(self, user_id):
20 
+        try:
21 
+            obj = DjangoUser.objects.get(id=user_id)
22 
+            from commu.entities.user import User, UserRole
23 
+            role = self._role_from_django(obj)
24 
+            u = User(
25 
+                username=obj.username,
26 
+                role=role,
27 
+            )
28 
+            u.id = str(obj.id)
29 
+            return u
30 
+        except DjangoUser.DoesNotExist:
31 
+            return None
32 
+
33 
+    def find_by_username(self, username):
34 
+        try:
35 
+            obj = DjangoUser.objects.get(username=username)
36 
+            from commu.entities.user import User, UserRole
37 
+            role = self._role_from_django(obj)
38 
+            u = User(
39 
+                username=obj.username,
40 
+                role=role,
41 
+            )
42 
+            u.id = str(obj.id)
43 
+            return u
44 
+        except DjangoUser.DoesNotExist:
45 
+            return None
46 
+
47 
+    def _role_from_django(self, user_obj):
48 
+        from commu.entities.user import UserRole
49 
+        if user_obj.is_superuser:
50 
+            return UserRole.ADMIN
51 
+        elif user_obj.is_staff:
52 
+            return UserRole.USER
53 
+        else:
54 
+            return UserRole.GUEST
55 
+

+ 3 - 0
core/tests.py
查看文件 

@@ -0,0 +1,3 @@
1 
+from django.test import TestCase
2 
+
3 
+# Create your tests here.

+ 0 - 0
core/tests/__init__.py
查看文件


二進制
core/tests/__pycache__/__init__.cpython-311.pyc
查看文件


二進制
core/tests/__pycache__/test_post_service_django.cpython-311.pyc
查看文件


+ 60 - 0
core/tests/test_post_service_django.py
查看文件 

@@ -0,0 +1,60 @@
1 
+import pytest
2 
+from django.test import TestCase
3 
+from django.contrib.auth import get_user_model
4 
+
5 
+from commu.usecases.post_service import PostService
6 
+from commu.entities.user import UserRole
7 
+from core.repositories.django_post_repository import DjangoPostRepository
8 
+from core.repositories.django_user_repository import DjangoUserRepository
9 
+
10 
+User = get_user_model()
11 
+
12 
+class PostServiceIntegrationTest(TestCase):
13 
+
14 
+    def setUp(self):
15 
+        # Use Django's repositories
16 
+        self.user_repo = DjangoUserRepository()
17 
+        self.post_repo = DjangoPostRepository()
18 
+        self.service = PostService(self.post_repo, self.user_repo)
19 
+
20 
+        # Create some users using Django ORM
21 
+        self.admin = User.objects.create_user(username="admin", is_superuser=True, is_staff=True)
22 
+        self.user = User.objects.create_user(username="user", is_staff=True)
23 
+        self.guest = User.objects.create_user(username="guest")  # Not staff or superuser
24 
+
25 
+    def test_create_post_by_user(self):
26 
+        post = self.service.create_post(str(self.user.id), "Hello Django!", ["img1.png"], ["vid1.mp4"])
27 
+        assert post.text == "Hello Django!"
28 
+        assert post.images == ["img1.png"]
29 
+        assert post.videos == ["vid1.mp4"]
30 
+
31 
+    def test_guest_cannot_create_post(self):
32 
+        with self.assertRaises(PermissionError):
33 
+            self.service.create_post(str(self.guest.id), "Forbidden")
34 
+
35 
+    def test_search_posts(self):
36 
+        p1 = self.service.create_post(str(self.user.id), "First Django post")
37 
+        p2 = self.service.create_post(str(self.user.id), "Second hello world")
38 
+        results = self.service.search_posts("hello")
39 
+        assert len(results) == 1
40 
+        assert results[0].text == "Second hello world"
41 
+
42 
+    def test_rate_post(self):
43 
+        post = self.service.create_post(str(self.user.id), "Rate me Django!")
44 
+        self.service.rate_post(post.id, str(self.admin.id), 5)
45 
+        self.service.rate_post(post.id, str(self.user.id), 4)
46 
+        updated_post = self.post_repo.get(post.id)
47 
+        assert abs(updated_post.average_rating() - 4.5) < 1e-6
48 
+
49 
+    def test_guest_cannot_rate_post(self):
50 
+        post = self.service.create_post(str(self.user.id), "No guest rate")
51 
+        with self.assertRaises(PermissionError):
52 
+            self.service.rate_post(post.id, str(self.guest.id), 2)
53 
+
54 
+    def test_rating_bounds(self):
55 
+        post = self.service.create_post(str(self.user.id), "Bounds Django")
56 
+        with self.assertRaises(ValueError):
57 
+            self.service.rate_post(post.id, str(self.admin.id), 0)
58 
+        with self.assertRaises(ValueError):
59 
+            self.service.rate_post(post.id, str(self.admin.id), 6)
60 
+

+ 8 - 0
core/urls.py
查看文件 

@@ -0,0 +1,8 @@
1 
+from django.urls import path
2 
+from . import views
3 
+
4 
+urlpatterns = [
5 
+    path('posts/create/', views.create_post, name='create_post'),
6 
+    path('posts/search/', views.search_posts, name='search_posts'),
7 
+    path('posts/rate/', views.rate_post, name='rate_post'),
8 
+]

+ 69 - 0
core/views.py
查看文件 

@@ -0,0 +1,69 @@
1 
+import json
2 
+from django.http import JsonResponse, HttpResponseBadRequest
3 
+from django.views.decorators.csrf import csrf_exempt
4 
+from django.contrib.auth.decorators import login_required
5 
+from commu.usecases.post_service import PostService
6 
+from core.repositories.django_post_repository import DjangoPostRepository
7 
+from core.repositories.django_user_repository import DjangoUserRepository
8 
+
9 
+# Service setup (could be moved to app config for larger apps)
10 
+user_repo = DjangoUserRepository()
11 
+post_repo = DjangoPostRepository()
12 
+post_service = PostService(post_repo, user_repo)
13 
+
14 
+@csrf_exempt
15 
+@login_required
16 
+def create_post(request):
17 
+    if request.method != 'POST':
18 
+        return HttpResponseBadRequest("POST only")
19 
+    try:
20 
+        data = json.loads(request.body.decode())
21 
+        text = data.get("text")
22 
+        images = data.get("images", [])
23 
+        videos = data.get("videos", [])
24 
+        if not text:
25 
+            return JsonResponse({"error": "Missing post text"}, status=400)
26 
+        # Use logged-in Django user as author
27 
+        user_id = str(request.user.id)
28 
+        post = post_service.create_post(user_id, text, images, videos)
29 
+        return JsonResponse({
30 
+            "id": post.id,
31 
+            "text": post.text,
32 
+            "author_id": post.author_id,
33 
+            "images": post.images,
34 
+            "videos": post.videos
35 
+        })
36 
+    except Exception as e:
37 
+        return JsonResponse({"error": str(e)}, status=400)
38 
+
39 
+def search_posts(request):
40 
+    q = request.GET.get("q", "")
41 
+    results = post_service.search_posts(q)
42 
+    posts = [{
43 
+        "id": p.id,
44 
+        "text": p.text,
45 
+        "author_id": p.author_id,
46 
+        "images": p.images,
47 
+        "videos": p.videos,
48 
+        "avg_rating": p.average_rating()
49 
+    } for p in results]
50 
+    return JsonResponse({"results": posts})
51 
+
52 
+@csrf_exempt
53 
+@login_required
54 
+def rate_post(request):
55 
+    if request.method != 'POST':
56 
+        return HttpResponseBadRequest("POST only")
57 
+    try:
58 
+        data = json.loads(request.body.decode())
59 
+        post_id = data.get("post_id")
60 
+        rating = data.get("rating")
61 
+        if not post_id or rating is None:
62 
+            return JsonResponse({"error": "Missing post_id or rating"}, status=400)
63 
+        user_id = str(request.user.id)
64 
+        post_service.rate_post(post_id, user_id, int(rating))
65 
+        return JsonResponse({"ok": True})
66 
+    except Exception as e:
67 
+        return JsonResponse({"error": str(e)}, status=400)
68 
+
69 
+

+ 0 - 0
db.sqlite3
查看文件


+ 0 - 0
django_commu/__init__.py
查看文件


二進制
django_commu/__pycache__/__init__.cpython-311.pyc
查看文件


二進制
django_commu/__pycache__/settings.cpython-311.pyc
查看文件


二進制
django_commu/__pycache__/urls.cpython-311.pyc
查看文件


二進制
django_commu/__pycache__/wsgi.cpython-311.pyc
查看文件


+ 16 - 0
django_commu/asgi.py
查看文件 

@@ -0,0 +1,16 @@
1 
+"""
2 
+ASGI config for django_commu project.
3 
+
4 
+It exposes the ASGI callable as a module-level variable named ``application``.
5 
+
6 
+For more information on this file, see
7 
+https://docs.djangoproject.com/en/5.2/howto/deployment/asgi/
8 
+"""
9 
+
10 
+import os
11 
+
12 
+from django.core.asgi import get_asgi_application
13 
+
14 
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'django_commu.settings')
15 
+
16 
+application = get_asgi_application()

+ 128 - 0
django_commu/settings.py
查看文件 

@@ -0,0 +1,128 @@
1 
+"""
2 
+Django settings for django_commu project.
3 
+
4 
+Generated by 'django-admin startproject' using Django 5.2.4.
5 
+
6 
+For more information on this file, see
7 
+https://docs.djangoproject.com/en/5.2/topics/settings/
8 
+
9 
+For the full list of settings and their values, see
10 
+https://docs.djangoproject.com/en/5.2/ref/settings/
11 
+"""
12 
+
13 
+from pathlib import Path
14 
+import os
15 
+
16 
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
17 
+BASE_DIR = Path(__file__).resolve().parent.parent
18 
+
19 
+
20 
+# Quick-start development settings - unsuitable for production
21 
+# See https://docs.djangoproject.com/en/5.2/howto/deployment/checklist/
22 
+
23 
+# SECURITY WARNING: keep the secret key used in production secret!
24 
+SECRET_KEY = 'django-insecure-c$ieo22nwe^v#*e$xlh@fath9*t+f8wtqrt9e!op9-ittc=b_x'
25 
+
26 
+# SECURITY WARNING: don't run with debug turned on in production!
27 
+DEBUG = True
28 
+
29 
+ALLOWED_HOSTS = []
30 
+
31 
+
32 
+# Application definition
33 
+
34 
+INSTALLED_APPS = [
35 
+    'django.contrib.admin',
36 
+    'django.contrib.auth',
37 
+    'django.contrib.contenttypes',
38 
+    'django.contrib.sessions',
39 
+    'django.contrib.messages',
40 
+    'django.contrib.staticfiles',
41 
+    'core',
42 
+]
43 
+
44 
+MIDDLEWARE = [
45 
+    'django.middleware.security.SecurityMiddleware',
46 
+    'django.contrib.sessions.middleware.SessionMiddleware',
47 
+    'django.middleware.common.CommonMiddleware',
48 
+    'django.middleware.csrf.CsrfViewMiddleware',
49 
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
50 
+    'django.contrib.messages.middleware.MessageMiddleware',
51 
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
52 
+]
53 
+
54 
+ROOT_URLCONF = 'django_commu.urls'
55 
+
56 
+TEMPLATES = [
57 
+    {
58 
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
59 
+        'DIRS': [],
60 
+        'APP_DIRS': True,
61 
+        'OPTIONS': {
62 
+            'context_processors': [
63 
+                'django.template.context_processors.request',
64 
+                'django.contrib.auth.context_processors.auth',
65 
+                'django.contrib.messages.context_processors.messages',
66 
+            ],
67 
+        },
68 
+    },
69 
+]
70 
+
71 
+WSGI_APPLICATION = 'django_commu.wsgi.application'
72 
+
73 
+
74 
+# Database
75 
+# https://docs.djangoproject.com/en/5.2/ref/settings/#databases
76 
+
77 
+DATABASES = {
78 
+    'default': {
79 
+        'ENGINE': 'django.db.backends.postgresql',
80 
+        'NAME': os.getenv('DB_NAME', 'commudb'),
81 
+        'USER': os.getenv('DB_USER', 'commuuser'),
82 
+        'PASSWORD': os.getenv('DB_PASSWORD', 'commupass'),
83 
+        'HOST': os.getenv('DB_HOST', 'db'),
84 
+        'PORT': os.getenv('DB_PORT', '5432'),
85 
+    }
86 
+}
87 
+
88 
+
89 
+# Password validation
90 
+# https://docs.djangoproject.com/en/5.2/ref/settings/#auth-password-validators
91 
+
92 
+AUTH_PASSWORD_VALIDATORS = [
93 
+    {
94 
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
95 
+    },
96 
+    {
97 
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
98 
+    },
99 
+    {
100 
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
101 
+    },
102 
+    {
103 
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
104 
+    },
105 
+]
106 
+
107 
+
108 
+# Internationalization
109 
+# https://docs.djangoproject.com/en/5.2/topics/i18n/
110 
+
111 
+LANGUAGE_CODE = 'en-us'
112 
+
113 
+TIME_ZONE = 'UTC'
114 
+
115 
+USE_I18N = True
116 
+
117 
+USE_TZ = True
118 
+
119 
+
120 
+# Static files (CSS, JavaScript, Images)
121 
+# https://docs.djangoproject.com/en/5.2/howto/static-files/
122 
+
123 
+STATIC_URL = 'static/'
124 
+
125 
+# Default primary key field type
126 
+# https://docs.djangoproject.com/en/5.2/ref/settings/#default-auto-field
127 
+
128 
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

+ 23 - 0
django_commu/urls.py
查看文件 

@@ -0,0 +1,23 @@
1 
+"""
2 
+URL configuration for django_commu project.
3 
+
4 
+The `urlpatterns` list routes URLs to views. For more information please see:
5 
+    https://docs.djangoproject.com/en/5.2/topics/http/urls/
6 
+Examples:
7 
+Function views
8 
+    1. Add an import:  from my_app import views
9 
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
10 
+Class-based views
11 
+    1. Add an import:  from other_app.views import Home
12 
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
13 
+Including another URLconf
14 
+    1. Import the include() function: from django.urls import include, path
15 
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
16 
+"""
17 
+from django.contrib import admin
18 
+from django.urls import path, include
19 
+
20 
+urlpatterns = [
21 
+    path('admin/', admin.site.urls),
22 
+    path('core/', include('core.urls')),
23 
+]

+ 16 - 0
django_commu/wsgi.py
查看文件 

@@ -0,0 +1,16 @@
1 
+"""
2 
+WSGI config for django_commu project.
3 
+
4 
+It exposes the WSGI callable as a module-level variable named ``application``.
5 
+
6 
+For more information on this file, see
7 
+https://docs.djangoproject.com/en/5.2/howto/deployment/wsgi/
8 
+"""
9 
+
10 
+import os
11 
+
12 
+from django.core.wsgi import get_wsgi_application
13 
+
14 
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'django_commu.settings')
15 
+
16 
+application = get_wsgi_application()

+ 40 - 0
docker-compose.yml
查看文件 

@@ -0,0 +1,40 @@
1 
+version: '3.9'
2 
+
3 
+services:
4 
+  db:
5 
+    image: postgres:16
6 
+    environment:
7 
+      POSTGRES_DB: commudb
8 
+      POSTGRES_USER: commuuser
9 
+      POSTGRES_PASSWORD: commupass
10 
+    ports:
11 
+      - "5432:5432"
12 
+    volumes:
13 
+      - postgres_data:/var/lib/postgresql/data
14 
+
15 
+  web:
16 
+    build:
17 
+      context: .
18 
+      args:
19 
+        UID: ${UID}
20 
+        GID: ${GID}
21 
+    user: "${UID}:${GID}"
22 
+    command: >
23 
+      sh -c "python manage.py runserver 0.0.0.0:8000"
24 
+    volumes:
25 
+      - .:/app
26 
+    working_dir: /app
27 
+    ports:
28 
+      - "8000:8000"
29 
+    depends_on:
30 
+      - db
31 
+    environment:
32 
+      - DEBUG=1
33 
+      - DB_NAME=commudb
34 
+      - DB_USER=commuuser
35 
+      - DB_PASSWORD=commupass
36 
+      - DB_HOST=db
37 
+      - DB_PORT=5432
38 
+
39 
+volumes:
40 
+  postgres_data:

+ 38 - 0
main.py
查看文件 

@@ -0,0 +1,38 @@
1 
+from commu.infrastructure.memory_user_repository import InMemoryUserRepository
2 
+from commu.infrastructure.memory_post_repository import InMemoryPostRepository
3 
+from commu.usecases.user_service import UserService
4 
+from commu.usecases.post_service import PostService
5 
+from commu.entities.user import UserRole
6 
+
7 
+def main():
8 
+    user_repo = InMemoryUserRepository()
9 
+    post_repo = InMemoryPostRepository()
10 
+    user_service = UserService(user_repo)
11 
+    post_service = PostService(post_repo, user_repo)
12 
+
13 
+    # Create users
14 
+    admin = user_service.register("alice", UserRole.ADMIN)
15 
+    user = user_service.register("bob", UserRole.USER)
16 
+    guest = user_service.register("guest", UserRole.GUEST)
17 
+
18 
+    # User creates post
19 
+    post = post_service.create_post(user.id, "Hello world!", images=["img1.png"], videos=["vid1.mp4"])
20 
+    print(f"Created Post: {post.text}, by {user.username}")
21 
+
22 
+    # Post search
23 
+    found = post_service.search_posts("hello")
24 
+    print(f"Found {len(found)} posts containing 'hello'.")
25 
+
26 
+    # Post rating
27 
+    post_service.rate_post(post.id, admin.id, 5)
28 
+    post_service.rate_post(post.id, user.id, 4)
29 
+    print(f"Average Rating: {post.average_rating()}")
30 
+
31 
+    # Guest tries to create post (should fail)
32 
+    try:
33 
+        post_service.create_post(guest.id, "I am a guest")
34 
+    except PermissionError as e:
35 
+        print("Guest cannot create post:", e)
36 
+
37 
+if __name__ == "__main__":
38 
+    main()

+ 22 - 0
manage.py
查看文件 

@@ -0,0 +1,22 @@
1 
+#!/usr/bin/env python
2 
+"""Django's command-line utility for administrative tasks."""
3 
+import os
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+import sys
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+
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+
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+def main():
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+    """Run administrative tasks."""
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+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'django_commu.settings')
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+    try:
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+        from django.core.management import execute_from_command_line
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+    except ImportError as exc:
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+        raise ImportError(
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+            "Couldn't import Django. Are you sure it's installed and "
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+            "available on your PYTHONPATH environment variable? Did you "
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+            "forget to activate a virtual environment?"
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+        ) from exc
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+    execute_from_command_line(sys.argv)
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+
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+
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+if __name__ == '__main__':
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+    main()

+ 3 - 0
requirements.txt
查看文件 

@@ -0,0 +1,3 @@
1 
+pytest
2 
+Django>=4.2
3 
+psycopg2-binary

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tiger_frontend
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NameManager.js

NameManager.js 642B
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  1. 

  2. import getIdentifierNames from "./util/getIdentifierNames";
    3. 

  3. 

  4. export default class NameManager {
    5. 

  5.     __init() {this.usedNames = new Set()}
    6. 

  6. 

  7.   constructor(code, tokens) {;NameManager.prototype.__init.call(this);
    8. 

  8.     this.usedNames = new Set(getIdentifierNames(code, tokens));
    9. 

  9.   }
    10. 

  10. 

  11.   claimFreeName(name) {
    12. 

  12.     const newName = this.findFreeName(name);
    13. 

  13.     this.usedNames.add(newName);
    14. 

  14.     return newName;
    15. 

  15.   }
    16. 

  16. 

  17.   findFreeName(name) {
    18. 

  18.     if (!this.usedNames.has(name)) {
    19. 

  19.       return name;
    20. 

  20.     }
    21. 

  21.     let suffixNum = 2;
    22. 

  22.     while (this.usedNames.has(name + String(suffixNum))) {
    23. 

  23.       suffixNum++;
    24. 

  24.     }
    25. 

  25.     return name + String(suffixNum);
    26. 

  26.   }
    27. 

  27. }
    28. 

  28.