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base.js
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base.js
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import { Exception } from '@handlebars/parser';
import { createFrame, extend, toString } from './utils';
import { registerDefaultHelpers } from './helpers';
import { registerDefaultDecorators } from './decorators';
import logger from './logger';
import { resetLoggedProperties } from './internal/proto-access';
export const VERSION = '4.7.7';
export const COMPILER_REVISION = 8;
export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
export const REVISION_CHANGES = {
1: '<= 1.0.rc.2', // 1.0.rc.2 is actually rev2 but doesn't report it
2: '== 1.0.0-rc.3',
3: '== 1.0.0-rc.4',
4: '== 1.x.x',
5: '== 2.0.0-alpha.x',
6: '>= 2.0.0-beta.1',
7: '>= 4.0.0 <4.3.0',
8: '>= 4.3.0',
};
const objectType = '[object Object]';
export function HandlebarsEnvironment(helpers, partials, decorators) {
this.helpers = helpers || {};
this.partials = partials || {};
this.decorators = decorators || {};
registerDefaultHelpers(this);
registerDefaultDecorators(this);
}
HandlebarsEnvironment.prototype = {
constructor: HandlebarsEnvironment,
logger: logger,
log: logger.log,
registerHelper: function (name, fn) {
if (toString.call(name) === objectType) {
if (fn) {
throw new Exception('Arg not supported with multiple helpers');
}
extend(this.helpers, name);
} else {
this.helpers[name] = fn;
}
},
unregisterHelper: function (name) {
delete this.helpers[name];
},
registerPartial: function (name, partial) {
if (toString.call(name) === objectType) {
extend(this.partials, name);
} else {
if (typeof partial === 'undefined') {
throw new Exception(
`Attempting to register a partial called "${name}" as undefined`
);
}
this.partials[name] = partial;
}
},
unregisterPartial: function (name) {
delete this.partials[name];
},
registerDecorator: function (name, fn) {
if (toString.call(name) === objectType) {
if (fn) {
throw new Exception('Arg not supported with multiple decorators');
}
extend(this.decorators, name);
} else {
this.decorators[name] = fn;
}
},
unregisterDecorator: function (name) {
delete this.decorators[name];
},
/**
* Reset the memory of illegal property accesses that have already been logged.
* @deprecated should only be used in handlebars test-cases
*/
resetLoggedPropertyAccesses() {
resetLoggedProperties();
},
};
export let log = logger.log;
export { createFrame, logger };