type_token 1.0.4

Extend on dart `Type` for more helpful function.

type_token extend on dart Type for more helpful functions, like more easier way to determine what type it is, free transforms between Type and TypeToken and easily resolve generic type.

Usage

Instance

There are 4 ways to get instance of TypeToken.

main(){
  TypeToken token;
  token = TypeToken.of(int); // int
  token = TypeToken.ofInt(); // int
  token = TypeToken.parse(10); // int
  token = TypeToken.ofName("int"); // int
}

Types

after got a instance, you can determine what type it is.

main(){
  token.isInt; // int
  token.isDouble; // double
  token.isString; // string
  token.isBool; // bool
  token.isList; // list
  token.isMap; // map
  token.isDynamic; // dynamic
  token.isVoid; // void
  token.isPrimitive; // int, double, bool and string
  token.isNotPrimitive; // is not primitive
  token.isNativeType; // int, double, bool, string, list and map
}

Transforms

TypeToken can transform to native type, but it will throw error if it is not a native type.

main(){
  Type nativeType = token.nativeType;  
}

Generic types

TypeToken support very easy way for resolving generic types.

main(){
  // generics
  // get all generic types
  token = TypeToken.ofMapByType(int, String); // Map<int, String>
  token.generics; // [int, String]

  // nested generic type
  TypeToken genericToken;
  token = TypeToken.ofListByToken(TypeToken.ofList<int>()); // List<List<int>>
  genericToken = token.generics[0].generics[0]; // int
  genericToken = token.firstGeneric.firstGeneric; // int
  genericToken = token[0][0]; //int
}

toString()

main(){
  // to string
  token.typeName; // without generic type
  token.fullTypeName; // with full generic type
  token.toString(); // same with fullTypeName
}