62 lines
1.5 KiB
JavaScript
62 lines
1.5 KiB
JavaScript
'use strict';
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var YAMLException = require('./exception');
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var TYPE_CONSTRUCTOR_OPTIONS = [
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'kind',
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'resolve',
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'construct',
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'instanceOf',
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'predicate',
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'represent',
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'defaultStyle',
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'styleAliases'
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];
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var YAML_NODE_KINDS = [
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'scalar',
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'sequence',
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'mapping'
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];
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function compileStyleAliases(map) {
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var result = {};
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if (null !== map) {
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Object.keys(map).forEach(function (style) {
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map[style].forEach(function (alias) {
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result[String(alias)] = style;
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});
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});
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}
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return result;
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}
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function Type(tag, options) {
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options = options || {};
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Object.keys(options).forEach(function (name) {
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if (-1 === TYPE_CONSTRUCTOR_OPTIONS.indexOf(name)) {
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throw new YAMLException('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
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}
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});
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// TODO: Add tag format check.
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this.tag = tag;
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this.kind = options['kind'] || null;
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this.resolve = options['resolve'] || function () { return true; };
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this.construct = options['construct'] || function (data) { return data; };
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this.instanceOf = options['instanceOf'] || null;
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this.predicate = options['predicate'] || null;
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this.represent = options['represent'] || null;
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this.defaultStyle = options['defaultStyle'] || null;
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this.styleAliases = compileStyleAliases(options['styleAliases'] || null);
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if (-1 === YAML_NODE_KINDS.indexOf(this.kind)) {
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throw new YAMLException('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
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}
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}
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module.exports = Type;
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