HDict class abstract

HDict is an immutable map of name/HVal pairs. Use HDictBuilder to construct a HDict instance.

See Project Haystack

Inheritance

• Object
• HVal
• HDict

Mixed in types

• MapMixin<String, HVal?>

Implementers

• HHisItem
• HRow

Constructors

HDict(Map<String, HVal?> map)

factory

Properties

entries → Iterable<MapEntry<String, HVal?>>

The map entries of this.

no setter, inherited

hashCode → int

Hash code is based on tags

no setter, override

isEmpty → bool

//////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////// Returns if size is zero.

no setter, override

isNotEmpty → bool

Whether there is at least one key/value pair in the map.

no setter, inherited

keys → Iterable<String>

The keys of this.

no setter, inherited

length → int

The number of key/value pairs in the map.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

size → int

Returns number of tag name/value pairs

no setter

values → Iterable<HVal?>

The values of this.

no setter, inherited

Methods

addAll(Map<String, HVal?> other) → void

Adds all key/value pairs of other to this map.

inherited

addEntries(Iterable<MapEntry<String, HVal?>> newEntries) → void

Adds all key/value pairs of newEntries to this map.

inherited

cast<RK, RV>() → Map<RK, RV>

Provides a view of this map as having RK keys and RV instances, if necessary.

inherited

clear() → void

Removes all entries from the map.

override

compareTo(Object that) → int

Returns sort order as negative, 0, or positive.

inherited

containsKey(Object? key) → bool

Whether this map contains the given key.

inherited

containsValue(Object? value) → bool

Whether this map contains the given value.

inherited

dis() → String

Get display string for this entity:

forEach(void action(String key, HVal value)) → void

Iterates keys and values in keys order and skipping null values.

override

get(String name, {bool checked = true}) → HVal?

Get a tag by name.

getBool(String name, {bool checked = true}) → bool?

/////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// Get tag as HBool or raise UnknownNameException or ClassCastException.

getDouble(String name, {bool checked = true}) → double?

Get tag as HNum or raise UnknownNameException or ClassCastException.

getInt(String name, {bool checked = true}) → int?

Get tag as HNum or raise UnknownNameException or ClassCastException.

getRef(String name, {bool checked = true}) → HRef?

Get tag as HRef or raise UnknownNameException or ClassCastException.

getStr(String name, {bool checked = true}) → String?

Get tag as HStr or raise UnknownNameException or ClassCastException.

has(String name) → bool

Returns if the given tag is present.

hasTyped<T>(String name) → bool

id() → HRef?

Get the "id" tag as HRef.

map<K2, V2>(MapEntry<K2, V2> transform(String key, HVal? value)) → Map<K2, V2>

Returns a new map where all entries of this map are transformed by the given convert function.

inherited

missing(String name) → bool

Returns if the given tag is not present.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

putIfAbsent(String key, HVal? ifAbsent()) → HVal?

Look up the value of key, or add a new entry if it isn't there.

inherited

remove(Object? key) → HVal

Removes key and its associated value, if present, from the map.

override

removeWhere(bool test(String key, HVal? value)) → void

Removes all entries of this map that satisfy the given test.

inherited

toJson() → String

Encodes value to json format

override

toString() → String

/////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// String format is always "toZinc"

override

toZinc() → String

Encodes value to zinc format

override

update(String key, HVal? update(HVal? value), {HVal? ifAbsent()?}) → HVal?

Updates the value for the provided key.

inherited

updateAll(HVal? update(String key, HVal? value)) → void

Updates all values.

inherited

Operators

operator ==(Object other) → bool

Equality is tags

override

operator [](Object? key) → HVal?

The value for the given key, or null if key is not in the map.

inherited

operator []=(String key, HVal? value) → void

Associates the key with the given value.

override

Static Properties

EMPTY → HDict

Singleton for empty set of tags.

final

Static Methods

isTagName(String n) → bool

/////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// Returns if the given string is a legal tag name.