initializer

Description:

initializer

This library is just a simple library for integrating initialization code.
Annotate code that needs to be initialized with @Initializer() to generate the aggregate function initializer().
Call initializer() at the beginning of your program (such as the beginning of main function), then the relevant code will be initialized;
Features #
supported types:

global variable
global function without required parameters
static fields of a class
static methods of a class without required parameters

Getting started #

Add the following to your project's pubspec.yaml and run pub get.

dependencies:
initializer_annotation: ^0.1.0
dev_dependencies:
initializer: ^0.1.0
copied to clipboard

Import initializer_annotation.dart from a file in your project.

import 'package:initializer_annotation/initializer_annotation.dart';
copied to clipboard

Annotate your code with classes defined in package:initializer_annotation.



See example/lib/example.dart for an example of a file using these annotations.


See example/lib/init.init.dart for the generated file.



Run dart run build_runner build to generate files into your source directory.
NOTE: If you're using Flutter, replace pub run with flutter pub run.

Usage #


you can config the output file path/group order in build.yaml
targets:
$default:
builders:
initializer:
options:
output_path: lib/init.init.dart
order:
- default
- group1
- group2
copied to clipboard


use global variable/function(without required parameters)
@Initializer()
final initVar = init();

bool _inited;
@Initializer()
bool init() => _inited = true;

late final bool _inited2;
@Initializer(group: 'group2')
bool init2() => _inited2 = true;
copied to clipboard


use static fields/methods(without required parameters) of a class
NOTE:Need annotate class name and field/method both.
@Initializer()
class InitA {
@Initializer()
static final initVar = init();

static late final int _init;
@Initializer()
static int init() {
_init = 1;
return _init;
}
}
copied to clipboard