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Filename : compose-scalar.js
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import { SCALAR, isScalar } from '../nodes/identity.js';
import { Scalar } from '../nodes/Scalar.js';
import { resolveBlockScalar } from './resolve-block-scalar.js';
import { resolveFlowScalar } from './resolve-flow-scalar.js';

function composeScalar(ctx, token, tagToken, onError) {
    const { value, type, comment, range } = token.type === 'block-scalar'
        ? resolveBlockScalar(ctx, token, onError)
        : resolveFlowScalar(token, ctx.options.strict, onError);
    const tagName = tagToken
        ? ctx.directives.tagName(tagToken.source, msg => onError(tagToken, 'TAG_RESOLVE_FAILED', msg))
        : null;
    const tag = tagToken && tagName
        ? findScalarTagByName(ctx.schema, value, tagName, tagToken, onError)
        : token.type === 'scalar'
            ? findScalarTagByTest(ctx, value, token, onError)
            : ctx.schema[SCALAR];
    let scalar;
    try {
        const res = tag.resolve(value, msg => onError(tagToken ?? token, 'TAG_RESOLVE_FAILED', msg), ctx.options);
        scalar = isScalar(res) ? res : new Scalar(res);
    }
    catch (error) {
        const msg = error instanceof Error ? error.message : String(error);
        onError(tagToken ?? token, 'TAG_RESOLVE_FAILED', msg);
        scalar = new Scalar(value);
    }
    scalar.range = range;
    scalar.source = value;
    if (type)
        scalar.type = type;
    if (tagName)
        scalar.tag = tagName;
    if (tag.format)
        scalar.format = tag.format;
    if (comment)
        scalar.comment = comment;
    return scalar;
}
function findScalarTagByName(schema, value, tagName, tagToken, onError) {
    if (tagName === '!')
        return schema[SCALAR]; // non-specific tag
    const matchWithTest = [];
    for (const tag of schema.tags) {
        if (!tag.collection && tag.tag === tagName) {
            if (tag.default && tag.test)
                matchWithTest.push(tag);
            else
                return tag;
        }
    }
    for (const tag of matchWithTest)
        if (tag.test?.test(value))
            return tag;
    const kt = schema.knownTags[tagName];
    if (kt && !kt.collection) {
        // Ensure that the known tag is available for stringifying,
        // but does not get used by default.
        schema.tags.push(Object.assign({}, kt, { default: false, test: undefined }));
        return kt;
    }
    onError(tagToken, 'TAG_RESOLVE_FAILED', `Unresolved tag: ${tagName}`, tagName !== 'tag:yaml.org,2002:str');
    return schema[SCALAR];
}
function findScalarTagByTest({ directives, schema }, value, token, onError) {
    const tag = schema.tags.find(tag => tag.default && tag.test?.test(value)) || schema[SCALAR];
    if (schema.compat) {
        const compat = schema.compat.find(tag => tag.default && tag.test?.test(value)) ??
            schema[SCALAR];
        if (tag.tag !== compat.tag) {
            const ts = directives.tagString(tag.tag);
            const cs = directives.tagString(compat.tag);
            const msg = `Value may be parsed as either ${ts} or ${cs}`;
            onError(token, 'TAG_RESOLVE_FAILED', msg, true);
        }
    }
    return tag;
}

export { composeScalar };