dart_types 0.0.3+1

A simple cli/package for constructing type lattice and its presentation from Dart code

Dart Types

A cli/package to construct and present the type lattice of a given dart type.

Features:

• Generate the type lattice of given dart type(s) (only mermaid graph supported atm)
• List all types within a file

Note: generics are ignored at the moment

Installation

dart pub global activate dart_types

Usage:

Generate type lattice for a give dart type (only mermaid is supported atm)

Example (from string): dart_types -s "class A{} class B extends A{} class C extends B{}" -t "C"
Example   (from path): dart_types -p path/to/file.dart -c "MyClass"
Example  (list types): dart_types -p path/to/file.dart --list

Usage: dart_types [options]
  -p, --path      Specify the path of the file where the type(s) are (must provide this or `string`)
  -s, --string    Provide a string containing the type(s) (must provide this or `path`)
  -t, --type      Specify the type to be selected from the given <string> or <path> (can be used multiple times)
  -f, --filter    Filter out types from the type lattice (can be used multiple times)
  -l, --list      list all the types from the given <string> or <path>
  -h, --help      prints this usage information

Notes: See the example folder for how to use this as a package

Example

• Running the following:

  dart_types -s "typedef Func = int Function(int)" -t "Func" -f "Comparable"
  

• Produces the following mermaid graph:

  graph TD
      931422573("Object") --> 545029063("Function")
      545029063 --> 347766447("Object? Function(Never)")
      347766447 --> 99784076("Object Function(Never)")
      347766447 --> 822356007("Object? Function(int)")
      99784076 --> 558030879("num Function(Never)")
      99784076 --> 494603172("Object Function(int)")
      558030879 --> 355469451("int Function(Never)")
      558030879 --> 447189149("num Function(int)")
      355469451 --> 987323756("Never Function(Never)")
      355469451 --> 904175125("int Function(int)")
      987323756 --> 236799857("Never Function(int)")
      822356007 --> 494603172
      822356007 --> 979002104("Object? Function(num)")
      494603172 --> 447189149
      494603172 --> 655152334("Object Function(num)")
      447189149 --> 904175125
      447189149 --> 434395023("num Function(num)")
      904175125 --> 236799857
      904175125 --> 1073456545("int Function(num)")
      236799857 --> 751074829("Never Function(num)")
      979002104 --> 655152334
      979002104 --> 872118137("Object? Function(Object)")
      655152334 --> 434395023
      655152334 --> 562034873("Object Function(Object)")
      434395023 --> 1073456545
      434395023 --> 1066591392("num Function(Object)")
      1073456545 --> 751074829
      1073456545 --> 486934897("int Function(Object)")
      751074829 --> 314729469("Never Function(Object)")
      872118137 --> 562034873
      872118137 --> 796081945("Object? Function(Object?)")
      562034873 --> 1066591392
      562034873 --> 961619332("Object Function(Object?)")
      1066591392 --> 486934897
      1066591392 --> 1011595491("num Function(Object?)")
      486934897 --> 314729469
      486934897 --> 352616210("int Function(Object?)")
      314729469 --> 374033440("Never Function(Object?)")
      796081945 --> 961619332
      961619332 --> 1011595491
      1011595491 --> 352616210
      352616210 --> 374033440
      374033440 --> 791979707("Never")
  
  
  style 904175125 color:#7FFF7F
  

  Note: to view the output, paste the graph at: https://mermaid.live