@glimmer/compiler/dist/commonjs/es5/lib/compiler.js

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.defaultId = undefined;
exports.precompile = precompile;

var _syntax = require('@glimmer/syntax');

var _templateCompiler = require('./template-compiler');

var _templateCompiler2 = _interopRequireDefault(_templateCompiler);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var defaultId = exports.defaultId = function () {
    if (typeof require === 'function') {
        try {
            /* tslint:disable:no-require-imports */
            var crypto = require('crypto');
            /* tslint:enable:no-require-imports */
            var idFn = function idFn(src) {
                var hash = crypto.createHash('sha1');
                hash.update(src, 'utf8');
                // trim to 6 bytes of data (2^48 - 1)
                return hash.digest('base64').substring(0, 8);
            };
            idFn('test');
            return idFn;
        } catch (e) {}
    }
    return function idFn() {
        return null;
    };
}();
var defaultOptions = {
    id: defaultId,
    meta: {}
};
function precompile(string) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultOptions;

    var ast = (0, _syntax.preprocess)(string, options);
    var meta = options.meta;

    var _TemplateCompiler$com = _templateCompiler2.default.compile(ast, options),
        block = _TemplateCompiler$com.block;

    var idFn = options.id || defaultId;
    var blockJSON = JSON.stringify(block.toJSON());
    var templateJSONObject = {
        id: idFn(JSON.stringify(meta) + blockJSON),
        block: blockJSON,
        meta: meta
    };
    // JSON is javascript
    return JSON.stringify(templateJSONObject);
}
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