antlr4ts/misc/Array2DHashMap.js.map

ANTLR 4 runtime for JavaScript written in Typescript

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All rights reserved.\r\n * Licensed under the BSD-3-Clause license. See LICENSE file in the project root for license information.\r\n */\r\n\r\nimport { Array2DHashSet } from \"./Array2DHashSet\";\r\nimport { DefaultEqualityComparator } from \"./DefaultEqualityComparator\";\r\nimport { EqualityComparator } from \"./EqualityComparator\";\r\nimport { Equatable, JavaCollection, JavaMap, JavaSet } from \"./Stubs\";\r\n\r\n// Since `Array2DHashMap` is implemented on top of `Array2DHashSet`, we defined a bucket type which can store a\r\n// key-value pair. The value is optional since looking up values in the map by a key only needs to include the key.\r\ninterface Bucket<K, V> { key: K; value?: V; }\r\n\r\nclass MapKeyEqualityComparator<K, V> implements EqualityComparator<Bucket<K, V>> {\r\n\tprivate readonly keyComparator: EqualityComparator<K>;\r\n\r\n\tconstructor(keyComparator: EqualityComparator<K>) {\r\n\t\tthis.keyComparator = keyComparator;\r\n\t}\r\n\r\n\tpublic hashCode(obj: Bucket<K, V>): number {\r\n\t\treturn this.keyComparator.hashCode(obj.key);\r\n\t}\r\n\r\n\tpublic equals(a: Bucket<K, V>, b: Bucket<K, V>): boolean {\r\n\t\treturn this.keyComparator.equals(a.key, b.key);\r\n\t}\r\n}\r\n\r\nexport class Array2DHashMap<K, V> implements JavaMap<K, V> {\r\n\tprivate backingStore: Array2DHashSet<Bucket<K, V>>;\r\n\r\n\tconstructor(keyComparer: EqualityComparator<K>);\r\n\tconstructor(map: Array2DHashMap<K, V>);\r\n\tconstructor(keyComparer: EqualityComparator<K> | Array2DHashMap<K, V>) {\r\n\t\tif (keyComparer instanceof Array2DHashMap) {\r\n\t\t\tthis.backingStore = new Array2DHashSet<Bucket<K, V>>(keyComparer.backingStore);\r\n\t\t} else {\r\n\t\t\tthis.backingStore = new Array2DHashSet<Bucket<K, V>>(new MapKeyEqualityComparator<K, V>(keyComparer));\r\n\t\t}\r\n\t}\r\n\r\n\tpublic clear(): void {\r\n\t\tthis.backingStore.clear();\r\n\t}\r\n\r\n\tpublic containsKey(key: K): boolean {\r\n\t\treturn this.backingStore.contains({ key });\r\n\t}\r\n\r\n\tpublic get(key: K): V | undefined {\r\n\t\tlet bucket = this.backingStore.get({ key });\r\n\t\tif (!bucket) {\r\n\t\t\treturn undefined;\r\n\t\t}\r\n\r\n\t\treturn bucket.value;\r\n\t}\r\n\r\n\tget isEmpty(): boolean {\r\n\t\treturn this.backingStore.isEmpty;\r\n\t}\r\n\r\n\tpublic put(key: K, value: V): V | undefined {\r\n\t\tlet element = this.backingStore.get({ key, value });\r\n\t\tlet result: V | undefined;\r\n\t\tif (!element) {\r\n\t\t\tthis.backingStore.add({ key, value });\r\n\t\t} else {\r\n\t\t\tresult = element.value;\r\n\t\t\telement.value = value;\r\n\t\t}\r\n\r\n\t\treturn result;\r\n\t}\r\n\r\n\tpublic putIfAbsent(key: K, value: V): V | undefined {\r\n\t\tlet element = this.backingStore.get({ key, value });\r\n\t\tlet result: V | undefined;\r\n\t\tif (!element) {\r\n\t\t\tthis.backingStore.add({ key, value });\r\n\t\t} else {\r\n\t\t\tresult = element.value;\r\n\t\t}\r\n\r\n\t\treturn result;\r\n\t}\r\n\r\n\tget size(): number {\r\n\t\treturn this.backingStore.size;\r\n\t}\r\n\r\n\tpublic hashCode(): number {\r\n\t\treturn this.backingStore.hashCode();\r\n\t}\r\n\r\n\tpublic equals(o: any): boolean {\r\n\t\tif (!(o instanceof Array2DHashMap)) {\r\n\t\t\treturn false;\r\n\t\t}\r\n\r\n\t\treturn this.backingStore.equals(o.backingStore);\r\n\t}\r\n}\r\n"]}