From 783865ca76bfd580f62e8f997f0a33f302b708d9 Mon Sep 17 00:00:00 2001
From: Alberto Montes de Oca <jamontes79@gmail.com>
Date: Wed, 15 May 2024 12:06:35 +0200
Subject: [PATCH] New HashedAllocator to avoid alias changes

---
 .../injectable_config_generator.dart          | 27 ++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/injectable_generator/lib/generators/injectable_config_generator.dart b/injectable_generator/lib/generators/injectable_config_generator.dart
index 6ca915c..1097959 100644
--- a/injectable_generator/lib/generators/injectable_config_generator.dart
+++ b/injectable_generator/lib/generators/injectable_config_generator.dart
@@ -168,7 +168,7 @@ class InjectableConfigGenerator extends GeneratorForAnnotation<InjectableInit> {
 
     final generatedLib = generator.generate();
     final emitter = DartEmitter(
-      allocator: Allocator.simplePrefixing(),
+      allocator: _HashedAllocator(),
       orderDirectives: true,
       useNullSafetySyntax: usesNullSafety,
     );
@@ -309,3 +309,28 @@ class InjectableConfigGenerator extends GeneratorForAnnotation<InjectableInit> {
     }
   }
 }
+
+class _HashedAllocator implements Allocator {
+  static const _doNotPrefix = ['dart:core'];
+
+  final _imports = <String, int>{};
+
+  String? _url;
+  @override
+  String allocate(Reference reference) {
+    final symbol = reference.symbol;
+    _url = reference.url;
+    if (_url == null || _doNotPrefix.contains(_url)) {
+      return symbol!;
+    }
+
+    return '_i${_imports.putIfAbsent(_url!, _hashedUrl)}.$symbol';
+  }
+
+  int _hashedUrl() => _url.hashCode;
+
+  @override
+  Iterable<Directive> get imports => _imports.keys.map(
+        (u) => Directive.import(u, as: '_i${_imports[u]}'),
+      );
+}