Dart DocumentationbotUtil

Util class

class Util {
  static int getHashCode(Iterable<Hashable> source) {
    int hash = 0;
    for (final h in source) {
      int next = h == null ? 0 : h.hashCode();
      hash = 0x1fffffff & (hash + next);
      hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10));
      hash ^= hash >> 6;
    }
    hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3));
    hash ^= hash >> 11;
    return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
  }
}

Static Methods

int getHashCode(Iterable<Hashable> source) #

static int getHashCode(Iterable<Hashable> source) {
  int hash = 0;
  for (final h in source) {
    int next = h == null ? 0 : h.hashCode();
    hash = 0x1fffffff & (hash + next);
    hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10));
    hash ^= hash >> 6;
  }
  hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3));
  hash ^= hash >> 11;
  return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
}

Properties

final Type runtimeType #

inherited from Object

A representation of the runtime type of the object.

external Type get runtimeType;

Operators

bool operator ==(other) #

inherited from Object

The equality operator.

The default behavior for all Objects is to return true if and only if this and other are the same object.

If a subclass overrides the equality operator it should override the hashCode method as well to maintain consistency.

bool operator ==(other) => identical(this, other);

Methods

int hashCode() #

inherited from Object

Get a hash code for this object.

All objects have hash codes. Hash codes are guaranteed to be the same for objects that are equal when compared using the equality operator ==. Other than that there are no guarantees about the hash codes. They will not be consistent between runs and there are no distribution guarantees.

If a subclass overrides hashCode it should override the equality operator as well to maintain consistency.

external int hashCode();

noSuchMethod(String name, List args) #

inherited from Object

noSuchMethod is invoked when users invoke a non-existant method on an object. The name of the method and the arguments of the invocation are passed to noSuchMethod. If noSuchMethod returns a value, that value becomes the result of the original invocation.

The default behavior of noSuchMethod is to throw a noSuchMethodError.

external Dynamic noSuchMethod(String name, List args);

const Object() #

inherited from Object

Creates a new Object instance.

Object instances have no meaningful state, and are only useful through their identity. An Object instance is equal to itself only.

const Object();

String toString() #

inherited from Object

Returns a string representation of this object.

external String toString();