0.1.4

Makefile

@@ -0,0 +1,8 @@
+.PHONY: build test
+
+build:
+	npx esbuild src/index.js --bundle --minify --outfile=dist/index.js --format=esm
+	npx rollup -c
+
+test:
+	npx vitest

package.json

@@ -1,20 +1,19 @@
 {
   "name": "@sek1ro/iterables",
-  "version": "0.1.1",
+  "version": "0.1.4",
   "description": "A data structures library based on iterators, inspired by libstdc++",
   "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "files": [
     "dist"
   ],
-  "scripts": {
-    "build": "esbuild src/index.js --bundle --minify --outfile=dist/index.js --format=esm",
-    "test": "vitest"
-  },
   "keywords": [],
   "author": "Vlad Litvinov <vlad@sek1.ro>",
   "license": "LGPL-3.0-only",
   "type": "module",
   "devDependencies": {
+    "rollup": "^4.45.1",
+    "rollup-plugin-dts": "^6.2.1",
     "vitest": "^3.1.1"
   }
 }

rollup.config.js

@@ -0,0 +1,10 @@
+import { dts } from "rollup-plugin-dts";
+
+export default {
+  input: 'types/index.d.ts',
+  output: {
+    file: 'dist/index.d.ts',
+    format: 'es', 
+  },
+  plugins: [dts()],
+}

src/List.js

@@ -35,6 +35,16 @@ export class List {
     return this._end.clone()
   }
 
+  resize(size, value) {
+    if (this._size > size)
+      while (this._size !== size)
+        this.popBack()
+
+    else
+      while (this._size !== size)
+        this.pushBack(value)
+  }
+
   _shiftRight(dest, generator) {
     let prev, res, new_item, item = dest.deref()
 
@@ -75,7 +85,7 @@ export class List {
   }
 }
 
-List.from = function (obj) {
+List.from = function(obj) {
   const list = new List()
   for (const value of obj) {
     list.pushBack(value)
@@ -98,6 +108,7 @@ export class ListItem {
 }
 
 export class ListIterator {
+
   constructor(item) {
     this._item = item
   }

src/containers/Sequence.js

@@ -1,5 +1,5 @@
 import { BidirectionalIterator } from "../iterators/Bidirectional"
-import { satisfiesConcept } from "../utils/concept"
+import { getCloneFunc, satisfiesConcept } from "../utils/concept"
 
 export class SequenceContainer {
   clone() {
@@ -16,6 +16,9 @@ export class SequenceContainer {
   }
 
   get front() {
+    if (this.empty())
+      throw new Error('front element is undefined')
+
     return this.begin().value
   }
 
@@ -24,6 +27,9 @@ export class SequenceContainer {
   }
 
   get back() {
+    if (this.empty())
+      throw new Error('back element is undefined')
+
     return this.end().dec().value
   }
 
@@ -120,13 +126,17 @@ export class SequenceContainer {
   }
 
   toJSON() {
-    return this.toString()
+    let res = []
+    for (const value of this) {
+      res.push(JSON.stringify(value))
+    }
+    return '[ ' + res.join(', ') + ' ]'
   }
 
   toString() {
     let res = []
     for (const value of this) {
-      res.push(JSON.stringify(value))
+      res.push(value.toString())
     }
     return '[ ' + res.join(', ') + ' ]'
   }
@@ -147,10 +157,11 @@ export class SequenceContainer {
   }
 }
 
-SequenceContainer.is = function (obj, ...args) {
+SequenceContainer.is = function(obj, ...args) {
   const pure_virtual = [
     'move',
     'size',
+    'resize',
     'begin',
     'end',
     '_shiftRight',

src/iterators/Forward.js

@@ -6,7 +6,7 @@ export class ForwardIterator {
   }
 
   get value() {
-    return this.deref()?.value
+    return this.deref().value
   }
 
   set value(value) {

test/List.test.js

@@ -49,7 +49,7 @@ test('move, empty', () => {
 
 test('constructor, assign', () => {
   expect(new List().size()).toEqual(0)
-  expect(new List().back).toEqual(undefined)
+  expect(() => new List().back).toThrow()
   expect(listEquArray(new List(null), [null])).toBeTruthy()
   expect(listEquArray(new List(null, 2), [null, null])).toBeTruthy()
   {
@@ -60,6 +60,19 @@ test('constructor, assign', () => {
   }
 })
 
+test('resize', () => {
+  {
+    const list = List.from([1, 2, 3])
+    list.resize(1)
+    expect(listEquArray(list, [1])).toBeTruthy()
+  }
+  {
+    const list = List.from([1])
+    list.resize(3, 2)
+    expect(listEquArray(list, [1, 2, 2])).toBeTruthy()
+  }
+})
+
 test('insert, clone', () => {
   {
     const list = List.from([1, 2])
@@ -134,4 +147,5 @@ test('pushBack, pushFront, popBack, popFront, back, front', () => {
 
 test('toJSON, toString', () => {
   expect(List.from([1, 2]).toJSON()).toEqual('[ 1, 2 ]')
+  expect(List.from([0n]).toString()).toEqual('[ 0 ]')
 })

types/List.d.ts

@@ -0,0 +1,38 @@
+import { SequenceContainer } from "./containers/Sequence";
+import { BidirectionalIterator } from "./iterators/Bidirectional";
+import { Item } from "./iterators/Forward";
+
+export class List<T> extends SequenceContainer<T, ListIterator<T>> {
+  /**
+    * empty list
+  */
+  constructor();
+  /**
+    * list with n similar elements
+    * @param value which will be inserted
+    * @param n count of how many values will be inserted
+    */
+  constructor(value: T, n?: number);
+  /**
+    * copies range of another list
+    * @param begin of another SequenceContainer<T>
+    * @param end of another SequenceContainer<T>
+    */
+  constructor(begin: ListIterator<T>, end: ListIterator<T>);
+
+  /**
+    * creates list from array, string and other iterable object
+    */
+  static from<T>(obj: Iterable<T>): List<T>;
+}
+
+export class ListItem<T> extends Item<T> {
+  get next(): ListItem<T>;
+  get prev(): ListItem<T>;
+
+  private constructor();
+}
+
+export class ListIterator<T> extends BidirectionalIterator<T> {
+  private constructor(); 
+}

types/containers/Sequence.d.ts

@@ -0,0 +1,79 @@
+import { ForwardIterator } from "../iterators/Forward";
+
+export class SequenceContainer<T, It extends ForwardIterator<T>> {
+  move(rhs: SequenceContainer<T, It>): this;
+  size(): number;
+  begin(): It;
+  end(): It;
+
+  clone(): this;
+  copy(rhs: SequenceContainer<T, It>): this;
+  empty(): boolean;
+  /**
+    * @returns direct access to front item's value
+    * @throws Error if size == 0  
+  */
+  get front(): T;
+  set front(value: T);
+  /**
+    * @returns direct access to back item's value
+    * @throws Error if size == 0
+  */
+  get back(): T;
+  set back(value: T);
+  /**
+    * inserts [begin, end) at dest
+    * @param dest where to insert
+    * @param begin of another SequenceContainer<T>
+    * @param end of another SequenceContainer<T>
+    * @returns iterator right after end iterator
+    */
+  insert(dest: It, begin: It, end: It): It;
+  /**
+    * inserts [begin, end) at dest
+    * @param dest where to insert
+    * @param value which will be inserted
+    * @param n count of how many values will be inserted
+    * @returns iterator right after last inserted value
+    */
+  insert(dest: It, value: T, n?: number): It;
+  /**
+    * same as list.clear(); list.insert(list.begin(), ...)
+    * @param begin of another SequenceContainer<T>
+    * @param end of another SequenceContainer<T>
+    * @returns end iterator
+    */
+  assign(begin: It, end: It): It;
+  /**
+    * same as list.clear(); list.insert(list.begin(), ...)
+    * @param value which will be inserted
+    * @param n count of how many values will be inserted
+    * @returns iterator right after last inserted value
+    */
+  assign(value: T, n?: number): It;
+  /**
+    * erases [begin, end)
+    * @param begin of erased range
+    * @param end of erased range
+    * @returns iterator right after erased range
+    */
+  erase(begin: It, end: It): It;
+  /**
+    * erases single item
+    * @param begin which points to erased item
+    * @returns iterator right after erased value
+    */
+  erase(item: It): It;
+  /**
+    * same as list.erase(list.begin(), list.end())
+    * @returns end iterator
+    */
+  clear(): It;
+  pushFront(value: T): void;
+  pushBack(value: T): void;
+  popFront(): void;
+  popBack(): void;
+  [Symbol.iterator](): Iterator<T>;
+  toJSON(): string;
+  toString(): string;
+}

types/index.d.ts

@@ -0,0 +1,5 @@
+import type { ForwardIterator } from "./iterators/Forward"
+import type { BidirectionalIterator } from "./iterators/Bidirectional"
+import type { SequenceContainer } from "./containers/Sequence"
+import type { List, ListIterator, ListItem } from "./List"
+export type { ForwardIterator, BidirectionalIterator, SequenceContainer, List, ListIterator, ListItem }

types/iterators/Bidirectional.d.ts

@@ -0,0 +1,9 @@
+import { ForwardIterator } from "./Forward";
+
+export class BidirectionalIterator<T> extends ForwardIterator<T> {
+  /**
+    * decrements iterator, it doesn't make copy
+    * @returns {this}
+    */
+  dec(): this;
+} 

types/iterators/Forward.d.ts

@@ -0,0 +1,24 @@
+export class Item<T> {
+  value: T
+}
+
+export class ForwardIterator<T> {
+  clone(): ForwardIterator<T>;
+  copy(rhs: ForwardIterator<T>): this;
+  deref(): Item<T>;
+  eq(rhs: ForwardIterator<T>): boolean;
+  /**
+    * increments iterator, it doesn't make copy
+    * @returns {this}
+    */
+  inc(): this;
+  
+  /**
+    * move-semantics, here it just copies rhs into this
+    * @returns {this}
+    */
+  move(rhs: ForwardIterator<T>): this;
+  get value(): T;
+  set value(value: T);
+  neq(rhs: ForwardIterator<T>): boolean;
+}