73 lines
2 KiB
JavaScript
73 lines
2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.IterableAccess = exports.MapAccess = void 0;
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exports.isVisitor = isVisitor;
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const utils_1 = require("../utils");
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class MapAccess {
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nextEntrySeed(kseed, vseed) {
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const key = this.nextKeySeed(kseed);
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if (!key.done) {
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const value = this.nextValueSeed(vseed);
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if (!value.done) {
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return utils_1.IterResult.Next([key.value, value.value]);
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}
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}
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return utils_1.IterResult.Done();
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}
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nextEntry() {
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const key = this.nextKey();
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if (!key.done) {
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const value = this.nextValue();
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if (!value.done) {
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return utils_1.IterResult.Next([key.value, value.value]);
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}
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}
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return utils_1.IterResult.Done();
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}
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*generate(next) {
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let item;
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while ((item = next()) && !item.done) {
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yield item.value;
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}
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}
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keys(seed) {
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return this.generate(seed == null ?
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this.nextKey.bind(this) :
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this.nextKeySeed.bind(this, seed));
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}
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values(seed) {
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return this.generate(seed == null ?
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this.nextValue.bind(this) :
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this.nextValueSeed.bind(this, seed));
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}
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entries(kseed, vseed) {
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return this.generate(kseed == null || vseed == null ?
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this.nextEntry.bind(this) :
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this.nextEntrySeed.bind(this, kseed, vseed));
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}
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[Symbol.iterator]() {
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return this.entries();
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}
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}
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exports.MapAccess = MapAccess;
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class IterableAccess {
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*[Symbol.iterator]() {
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return {
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next: this.nextElement
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};
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}
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}
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exports.IterableAccess = IterableAccess;
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const VisitorMethods = Object.freeze([
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'visitBoolean',
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'visitNumber',
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'visitBigInt',
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'visitString',
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'visitSymbol',
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'visitNull',
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'visitObject',
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'visitIterable'
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]);
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function isVisitor(visitor) {
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return VisitorMethods.every(method => method in visitor);
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}
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