yaml-language-server-parser/dist/src/schema.js

This is a maintained fork of YAML-AST-PARSER specifically for the YAML Language server.

'use strict';
Object.defineProperty(exports, "__esModule", { value: true });
const common = require("./common");
const YAMLException = require("./exception");
const type_1 = require("./type");
function compileList(schema, name, result) {
    var exclude = [];
    schema.include.forEach(function (includedSchema) {
        result = compileList(includedSchema, name, result);
    });
    schema[name].forEach(function (currentType) {
        result.forEach(function (previousType, previousIndex) {
            if (previousType.tag === currentType.tag) {
                exclude.push(previousIndex);
            }
        });
        result.push(currentType);
    });
    return result.filter(function (type, index) {
        return -1 === exclude.indexOf(index);
    });
}
function compileMap() {
    var result = {}, index, length;
    function collectType(type) {
        result[type.tag] = type;
    }
    for (index = 0, length = arguments.length; index < length; index += 1) {
        arguments[index].forEach(collectType);
    }
    return result;
}
class Schema {
    constructor(definition) {
        this.include = definition.include || [];
        this.implicit = definition.implicit || [];
        this.explicit = definition.explicit || [];
        this.implicit.forEach(function (type) {
            if (type.loadKind && 'scalar' !== type.loadKind) {
                throw new YAMLException('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
            }
        });
        this.compiledImplicit = compileList(this, 'implicit', []);
        this.compiledExplicit = compileList(this, 'explicit', []);
        this.compiledTypeMap = compileMap(this.compiledImplicit, this.compiledExplicit);
    }
}
Schema.DEFAULT = null;
Schema.create = function createSchema(...args) {
    var schemas, types;
    switch (args.length) {
        case 1:
            schemas = Schema.DEFAULT;
            types = args[0];
            break;
        case 2:
            schemas = args[0];
            types = args[1];
            break;
        default:
            throw new YAMLException('Wrong number of arguments for Schema.create function');
    }
    schemas = common.toArray(schemas);
    types = common.toArray(types);
    if (!schemas.every(function (schema) { return schema instanceof Schema; })) {
        throw new YAMLException('Specified list of super schemas (or a single Schema object) contains a non-Schema object.');
    }
    if (!types.every(function (type) { return type instanceof type_1.Type; })) {
        throw new YAMLException('Specified list of YAML types (or a single Type object) contains a non-Type object.');
    }
    return new Schema({
        include: schemas,
        explicit: types
    });
};
exports.Schema = Schema;
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