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File / Folder	Size	Action
.	-
.htaccess	0.27KB	edt ren
Alias.js	3.297KB	edt ren
Collection.js	5.003KB	edt ren
Node.js	1.308KB	edt ren
Pair.js	1.098KB	edt ren
Scalar.js	0.684KB	edt ren
YAMLMap.js	4.841KB	edt ren
YAMLSeq.js	3.489KB	edt ren
addPairToJSMap.js	3.787KB	edt ren
identity.js	1.478KB	edt ren
toJS.js	1.236KB	edt ren

import { createNode } from '../doc/createNode.js';
import { stringifyCollection } from '../stringify/stringifyCollection.js';
import { Collection } from './Collection.js';
import { SEQ, isScalar } from './identity.js';
import { isScalarValue } from './Scalar.js';
import { toJS } from './toJS.js';

class YAMLSeq extends Collection {
    static get tagName() {
        return 'tag:yaml.org,2002:seq';
    }
    constructor(schema) {
        super(SEQ, schema);
        this.items = [];
    }
    add(value) {
        this.items.push(value);
    }
    /**
     * Removes a value from the collection.
     *
     * `key` must contain a representation of an integer for this to succeed.
     * It may be wrapped in a `Scalar`.
     *
     * @returns `true` if the item was found and removed.
     */
    delete(key) {
        const idx = asItemIndex(key);
        if (typeof idx !== 'number')
            return false;
        const del = this.items.splice(idx, 1);
        return del.length > 0;
    }
    get(key, keepScalar) {
        const idx = asItemIndex(key);
        if (typeof idx !== 'number')
            return undefined;
        const it = this.items[idx];
        return !keepScalar && isScalar(it) ? it.value : it;
    }
    /**
     * Checks if the collection includes a value with the key `key`.
     *
     * `key` must contain a representation of an integer for this to succeed.
     * It may be wrapped in a `Scalar`.
     */
    has(key) {
        const idx = asItemIndex(key);
        return typeof idx === 'number' && idx < this.items.length;
    }
    /**
     * Sets a value in this collection. For `!!set`, `value` needs to be a
     * boolean to add/remove the item from the set.
     *
     * If `key` does not contain a representation of an integer, this will throw.
     * It may be wrapped in a `Scalar`.
     */
    set(key, value) {
        const idx = asItemIndex(key);
        if (typeof idx !== 'number')
            throw new Error(`Expected a valid index, not ${key}.`);
        const prev = this.items[idx];
        if (isScalar(prev) && isScalarValue(value))
            prev.value = value;
        else
            this.items[idx] = value;
    }
    toJSON(_, ctx) {
        const seq = [];
        if (ctx?.onCreate)
            ctx.onCreate(seq);
        let i = 0;
        for (const item of this.items)
            seq.push(toJS(item, String(i++), ctx));
        return seq;
    }
    toString(ctx, onComment, onChompKeep) {
        if (!ctx)
            return JSON.stringify(this);
        return stringifyCollection(this, ctx, {
            blockItemPrefix: '- ',
            flowChars: { start: '[', end: ']' },
            itemIndent: (ctx.indent || '') + '  ',
            onChompKeep,
            onComment
        });
    }
    static from(schema, obj, ctx) {
        const { replacer } = ctx;
        const seq = new this(schema);
        if (obj && Symbol.iterator in Object(obj)) {
            let i = 0;
            for (let it of obj) {
                if (typeof replacer === 'function') {
                    const key = obj instanceof Set ? it : String(i++);
                    it = replacer.call(obj, key, it);
                }
                seq.items.push(createNode(it, undefined, ctx));
            }
        }
        return seq;
    }
}
function asItemIndex(key) {
    let idx = isScalar(key) ? key.value : key;
    if (idx && typeof idx === 'string')
        idx = Number(idx);
    return typeof idx === 'number' && Number.isInteger(idx) && idx >= 0
        ? idx
        : null;
}

export { YAMLSeq };

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