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‎.gitignore

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# Files and directories created by pub
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.dart_tool/
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.packages
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# Omit commiting pubspec.lock for library packages:
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# https://dart.dev/guides/libraries/private-files#pubspeclock
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pubspec.lock
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# Conventional directory for build outputs
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build/
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# Directory created by dartdoc
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doc/api/
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.idea/

‎README.md

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# json2model
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This library generates a model object corresponding to a JSON string by executing commands in code
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## Usage
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A simple usage example:
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```dart
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import 'package:json2model/json2model.dart';
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void main() {
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run(['--src=example/json', '--dst=example/lib/models']);
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}
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```
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## Features and bugs
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Please file feature requests and bugs at the [issue tracker][tracker].
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[tracker]: https://github.com/venshine/json2model/issues
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## About
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[[email protected]]([email protected])
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## License
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[Apache 2.0](http://www.apache.org/licenses/LICENSE-2.0.html)

‎analysis_options.yaml

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# Defines a default set of lint rules enforced for
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# projects at Google. For details and rationale,
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# see https://github.com/dart-lang/pedantic#enabled-lints.
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include: package:effective_dart/analysis_options.yaml
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# For lint rules and documentation, see http://dart-lang.github.io/linter/lints.
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# Uncomment to specify additional rules.
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# linter:
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# rules:
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# - camel_case_types
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analyzer:
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# exclude:
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# - path/to/excluded/files/**
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:

‎cmd.sh

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pub global activate --source path .
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json2model run --src=example/json --dst=example/lib/models

‎example/json/test.json

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{
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"aListOfInts": [
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1,
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2,
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3
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],
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"list1": {
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"list2": [
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true,
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false
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],
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"list3": [
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8.5,
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"2.3"
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],
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"list4": null
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}
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}

‎example/json/testarray.json

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[
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{
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"md5": "fc15dcab3217608a7e31d74a893778a0",
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"height": "120",
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"width": "90",
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"type": "image",
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"format": [
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{
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"type": "String",
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"name": "image1"
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},
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{
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"type": "String",
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"name": "image2"
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}
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],
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"url": "https://github.com/venshine"
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}
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]

‎example/json2model_example.dart

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import 'package:json2model/json2model.dart';
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void main() {
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run(['--src=example/json', '--dst=example/lib/models']);
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}

‎example/lib/models/json/test.dart

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import 'dart:convert' show json;
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Test testFromJson(String str) => Test.fromJson(json.decode(str));
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String testToJson(Test data) => json.encode(data.toJson());
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class Test {
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Test({
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this.aListOfInts,
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this.list1
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});
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final List<int> aListOfInts;
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final List1 list1;
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factory Test.fromJson(Map<String, dynamic> json) => Test(
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aListOfInts: json['aListOfInts'] == null ? null : List<int>.from(json['aListOfInts'].map((x) => x)),
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list1: json['list1'] == null ? null : List1.fromJson(json['list1'])
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);
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Map<String, dynamic> toJson() => {
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'aListOfInts': aListOfInts == null ? null : List<dynamic>.from(aListOfInts.map((x) => x)),
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'list1': list1 == null ? null : list1.toJson()
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};
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}
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class List1 {
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List1({
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this.list2,
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this.list3,
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this.list4
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});
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final List<bool> list2;
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final List<dynamic> list3;
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final dynamic list4;
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factory List1.fromJson(Map<String, dynamic> json) => List1(
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list2: json['list2'] == null ? null : List<bool>.from(json['list2'].map((x) => x)),
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list3: json['list3'] == null ? null : List<dynamic>.from(json['list3'].map((x) => x)),
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list4: json['list4']
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);
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Map<String, dynamic> toJson() => {
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'list2': list2 == null ? null : List<dynamic>.from(list2.map((x) => x)),
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'list3': list3 == null ? null : List<dynamic>.from(list3.map((x) => x)),
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'list4': list4
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};
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}
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‎example/lib/models/json/testarray.dart

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import 'dart:convert' show json;
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List<Testarray> testarrayFromJson(String str) => List<Testarray>.from(json.decode(str).map((x) => Testarray.fromJson(x)));
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String testarrayToJson(List<Testarray> data) => json.encode(List<dynamic>.from(data.map((x) => x.toJson())));
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class Testarray {
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Testarray({
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this.md5,
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this.height,
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this.width,
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this.type,
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this.format,
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this.url
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});
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final String md5;
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final String height;
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final String width;
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final String type;
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final List<Format> format;
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final String url;
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factory Testarray.fromJson(Map<String, dynamic> json) => Testarray(
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md5: json['md5'],
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height: json['height'],
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width: json['width'],
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type: json['type'],
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format: json['format'] == null ? null : List<Format>.from(json['format'].map((x) => Format.fromJson(x))),
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url: json['url']
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);
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Map<String, dynamic> toJson() => {
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'md5': md5,
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'height': height,
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'width': width,
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'type': type,
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'format': format == null ? null : List<dynamic>.from(format.map((x) => x.toJson())),
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'url': url
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};
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}
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class Format {
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Format({
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this.type,
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this.name
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});
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final String type;
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final String name;
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factory Format.fromJson(Map<String, dynamic> json) => Format(
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type: json['type'],
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name: json['name']
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);
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Map<String, dynamic> toJson() => {
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'type': type,
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'name': name
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};
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}
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‎json2model.iml

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<?xml version="1.0" encoding="UTF-8"?>
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<module type="WEB_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
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<excludeFolder url="file://$MODULE_DIR$/.pub" />
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<excludeFolder url="file://$MODULE_DIR$/build" />
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</content>
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="library" name="Dart SDK" level="project" />
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<orderEntry type="library" name="Dart Packages" level="project" />
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</component>
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</module>

‎lib/json2model.dart

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library json2model;
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export 'src/json_model.dart';
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export 'src/run.dart';

‎lib/src/create_dart_class.dart

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import 'type.dart';
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String _fromJson(String className, List<DartType> fieldNames) => """
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factory $className.fromJson(Map<String, dynamic> json) => $className(
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${fieldNames.map((e) {
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var v = "";
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switch (e.type) {
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case Type.ARRAY:
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switch (e.className) {
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case "int":
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case "double":
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case "bool":
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case "String":
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case "dynamic":
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v = "json['${e.key}'] == null ? null : List<${e.className}>.from(json['${e.key}'].map((x) => x))";
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break;
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default:
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v = "json['${e.key}'] == null ? null : List<${e.className}>.from(json['${e.key}'].map((x) => ${e.className}.fromJson(x)))";
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break;
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}
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break;
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case Type.OBJECT:
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v = "json['${e.key}'] == null ? null : ${e.className}.fromJson(json['${e.key}'])";
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break;
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case Type.COMMON:
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default:
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v = "json['${e.key}']";
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break;
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}
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return '${e.key}: $v';
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}).join(',\n\t\t')}
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);
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""";
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String _toJson(List<DartType> fieldNames) => """
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Map<String, dynamic> toJson() => {
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${fieldNames.map((e) {
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var v = "";
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switch (e.type) {
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case Type.ARRAY:
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switch (e.className) {
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case "int":
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case "double":
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case "bool":
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case "String":
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case "dynamic":
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v = "${e.key} == null ? null : List<dynamic>.from(${e.key}.map((x) => x))";
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break;
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default:
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v = "${e.key} == null ? null : List<dynamic>.from(${e.key}.map((x) => x.toJson()))";
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break;
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}
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break;
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case Type.OBJECT:
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v = "${e.key} == null ? null : ${e.key}.toJson()";
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break;
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case Type.COMMON:
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default:
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v = e.key;
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break;
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}
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return "'${e.key}': $v";
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}).join(',\n\t\t')}
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};
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""";
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String createDartClass({String import, String decoder, String className, String attrs, List<DartType> fieldNames}) {
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var classOut = """
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$import
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$decoder
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""";
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var classIn = """
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class $className {
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$className({
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${fieldNames.map((e) => 'this.${e.key}').join(',\n\t\t')}
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});
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\r$attrs
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${_fromJson(className, fieldNames)}
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${_toJson(fieldNames)}
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}
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""";
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return classOut + (className.isNotEmpty ? classIn : '');
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}

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