Flutter and Dart AST Analyzer/Parser
Parse a Dart or Flutter file and return a opinionated AST for use to create a dynamic widget or runtime. Works in a browser or native at runtime.
You can pass an input as a file or directory:
$ dart ./bin/generator.dart -p samples/example.dart$ dart ./bin/generator.dart -p samples
Or you can call the method directly:
final DartResult result = parseSource("Dart Code Here");print(result.toJson());
Here is a sample input:
import 'package:flutter/material.dart';enum MyEnum { one, type, three }const int kGlobalField = 1;/// This is a doc commentclass MyScreen extends StatelessWidget {const MyScreen(this.position, {Key key, this.myField = false, this.mySecondField = 1,this.numField = 3,this.mapField = const {},this.dateField,this.listField = const [],}) : super(key: key);const MyScreen.alt(this.position, {Key key, this.mySecondField = double.infinity,this.numField = 3,this.mapField = const {},this.listField = const [],this.dateField,}) : this.myField = true, super(key: key);static const String routeName = '/my_route';final bool myField;final double mySecondField;final num numField;final Map mapField;final DateTime dateField;final List listField;final int position;// This is a normal commentMap<String, dynamic> toJson() {return {};}@overrideWidget build(BuildContext context) {if (myField) {return mySecondField == 1 ? Container(color: Colors.red) : Container(color: Colors.blue);}return Container(color: Colors.red,width: 20,child: Center(child: Builder((context) {return Text('Hello World');}),),);}}void myGlobalMethod() {}// Ignore this simple commentclass Simple {String value;}
And that would produce this output:
{"file": {"name": null,"imports": ["package:flutter/material.dart"],"classes": [{"name": "MyScreen","comments": ["This is a doc comment"],"fields": [{"name": "routeName","type": "String"},{"name": "myField","type": "bool"},{"name": "mySecondField","type": "double"},{"name": "numField","type": "num"},{"name": "mapField","type": "Map"},{"name": "dateField","type": "DateTime"},{"name": "listField","type": "List"},{"name": "position","type": "int"}],"constructors": [{"name": "MyScreen","properties": [{"value": null,"name": "key","type": "Key","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": "false","name": "myField","type": "bool","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": "1","name": "mySecondField","type": "double","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": "3","name": "numField","type": "num","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": "const {}","name": "mapField","type": "Map","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": null,"name": "dateField","type": "DateTime","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": "const []","name": "listField","type": "List","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true}]},{"name": "alt","properties": [{"value": null,"name": "key","type": "Key","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": null,"name": "mySecondField","type": "double","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": "3","name": "numField","type": "num","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": "const {}","name": "mapField","type": "Map","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": "const []","name": "listField","type": "List","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true},{"value": null,"name": "dateField","type": "DateTime","isConst": false,"isFinal": false,"isNamed": true,"isOptional": true,"isPositional": false,"isRequired": false,"isRequiredPositional": false,"isSynthetic": false,"isRequiredNamed": false,"isOptionalNamed": true}]}],"methods": [{"name": "toJson","body": {"name": "method_declaration","values": [{"name": "type","props": {"0": "Map<String, dynamic>"}},{"name": "declaration","values": []},{"name": "block_body","values": [{"name": "block","values": [{"name": "return","values": [{"name": "value","props": {"0": {"type": "Map","value": "{}"}}}]}]}]}]},"parameters": []},{"name": "build","body": {"name": "method_declaration","values": [{"name": "type","props": {"0": "Widget"}},{"name": "declaration","values": []},{"name": "block_body","values": [{"name": "block","values": [{"name": "if","values": [{"name": "name","props": {"0": "myField"}},{"name": "block","values": [{"name": "return","values": [{"name": "conditional","values": [{"name": "binary","left": {"name": "name","props": {"0": "mySecondField"}},"right": {"name": "value","props": {"0": {"type": "int","value": "1"}}},"operation": "=="},{"name": "constructor","value": "Container","arguments": {"color": null}},{"name": "constructor","value": "Container","arguments": {"color": null}}]}]}]}]},{"name": "return","values": [{"name": "constructor","value": "Container","arguments": {"color": null,"width": {"name": "value","props": {"0": {"type": "int","value": "20"}}},"child": {"name": "constructor","value": "Center","arguments": {"child": {"name": "constructor","value": "Builder","arguments": {}}}}}}]}]}]}]},"parameters": []}],"tree": {"name": null,"body": {"name": "block_body","values": [{"name": "block","values": [{"name": "if","values": [{"name": "name","props": {"0": "myField"}},{"name": "block","values": [{"name": "return","values": [{"name": "conditional","values": [{"name": "binary","left": {"name": "name","props": {"0": "mySecondField"}},"right": {"name": "value","props": {"0": {"type": "int","value": "1"}}},"operation": "=="},{"name": "constructor","value": "Container","arguments": {"color": null}},{"name": "constructor","value": "Container","arguments": {"color": null}}]}]}]}]},{"name": "return","values": [{"name": "constructor","value": "Container","arguments": {"color": null,"width": {"name": "value","props": {"0": {"type": "int","value": "20"}}},"child": {"name": "constructor","value": "Center","arguments": {"child": {"name": "constructor","value": "Builder","arguments": {}}}}}}]}]}]},"parameters": []}},{"name": "Simple","comments": [],"fields": [{"name": "value","type": "String"}],"constructors": [],"methods": []}],"enums": [{"name": "MyEnum","values": ["one","type","three"]}],"fields": [{"name": "kGlobalField","type": "int"}],"methods": [{"name": "myGlobalMethod","body": {"name": "function_declaration","values": [{"name": "type","props": {"0": "void"}},{"name": "declaration","values": []},{"name": "function","values": [{"name": "block_body","values": [{"name": "block","values": []}]}]}]},"parameters": []}]},"errors": []}