/
util.js
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/
util.js
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(function() {
/* eslint-disable vars-on-top */
'use strict';
var nunjucks,
nunjucksFull,
isSlim = false,
Environment,
Template,
Loader,
precompileString,
templatesPath,
expect;
if (typeof window === 'undefined') {
nunjucks = nunjucksFull = require('../nunjucks/index.js');
Loader = nunjucks.FileSystemLoader;
templatesPath = 'tests/templates';
expect = require('expect.js');
} else {
nunjucks = window.nunjucks;
if (window.nunjucksFull) {
isSlim = true;
nunjucksFull = window.nunjucksFull;
// These must be the same for instanceof checks to succeed
nunjucksFull.runtime.SafeString.prototype = nunjucks.runtime.SafeString.prototype;
} else {
nunjucksFull = window.nunjucksFull = nunjucks;
}
Loader = nunjucksFull.WebLoader;
templatesPath = '../templates';
expect = window.expect;
}
precompileString = nunjucksFull.precompileString;
Environment = nunjucks.Environment;
Template = nunjucks.Template;
var numAsyncs;
var doneHandler;
beforeEach(function() {
numAsyncs = 0;
doneHandler = null;
});
function equal(str, ctx, opts, str2, env) {
if (typeof ctx === 'string') {
env = opts;
str2 = ctx;
ctx = null;
opts = {};
}
if (typeof opts === 'string') {
env = str2;
str2 = opts;
opts = {};
}
opts = opts || {};
var res = render(str, ctx, opts, env);
expect(res).to.be(str2);
}
function jinjaEqual(str, ctx, str2, env) {
var jinjaUninstalls = [nunjucks.installJinjaCompat()];
if (nunjucksFull !== nunjucks) {
jinjaUninstalls.push(nunjucksFull.installJinjaCompat());
}
try {
return equal(str, ctx, str2, env);
} finally {
for (var i = 0; i < jinjaUninstalls.length; i++) {
jinjaUninstalls[i]();
}
}
}
function finish(done) {
if (numAsyncs > 0) {
doneHandler = done;
} else {
done();
}
}
function normEOL(str) {
if (!str) {
return str;
}
return str.replace(/\r\n|\r/g, '\n');
}
function randomTemplateName() {
var rand = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
return rand + '.njk';
}
// eslint-disable-next-line consistent-return
function render(str, ctx, opts, env, cb) {
if (typeof ctx === 'function') {
cb = ctx;
ctx = null;
opts = null;
env = null;
} else if (typeof opts === 'function') {
cb = opts;
opts = null;
env = null;
} else if (typeof env === 'function') {
cb = env;
env = null;
}
opts = opts || {};
opts.dev = true;
var loader;
var e;
if (isSlim) {
e = env || new Environment([], opts);
loader = e.loaders[0];
} else {
loader = new Loader(templatesPath);
e = env || new Environment(loader, opts);
}
var name;
if (opts.filters) {
for (name in opts.filters) {
if (Object.prototype.hasOwnProperty.call(opts.filters, name)) {
e.addFilter(name, opts.filters[name]);
}
}
}
if (opts.asyncFilters) {
for (name in opts.asyncFilters) {
if (Object.prototype.hasOwnProperty.call(opts.asyncFilters, name)) {
e.addFilter(name, opts.asyncFilters[name], true);
}
}
}
if (opts.extensions) {
for (name in opts.extensions) {
if (Object.prototype.hasOwnProperty.call(opts.extensions, name)) {
e.addExtension(name, opts.extensions[name]);
}
}
}
var tmplName;
if (isSlim) {
tmplName = randomTemplateName();
var precompileJs = precompileString(str, {
name: tmplName,
asFunction: true,
env: e
});
eval(precompileJs); // eslint-disable-line no-eval
}
ctx = ctx || {};
var t;
if (isSlim) {
var tmplSource = loader.getSource(tmplName);
t = new Template(tmplSource.src, e, tmplSource.path);
} else {
t = new Template(str, e);
}
if (!cb) {
return t.render(ctx);
} else {
numAsyncs++;
t.render(ctx, function(err, res) {
if (err && !opts.noThrow) {
throw err;
}
try {
cb(err, normEOL(res));
} catch (exc) {
if (doneHandler) {
doneHandler(exc);
numAsyncs = 0;
doneHandler = null;
} else {
throw exc;
}
}
numAsyncs--;
if (numAsyncs === 0 && doneHandler) {
doneHandler();
}
});
}
}
if (typeof window === 'undefined') {
module.exports.render = render;
module.exports.equal = equal;
module.exports.jinjaEqual = jinjaEqual;
module.exports.finish = finish;
module.exports.normEOL = normEOL;
module.exports.isSlim = isSlim;
module.exports.Loader = Loader;
} else {
window.util = {
render: render,
equal: equal,
jinjaEqual: jinjaEqual,
finish: finish,
normEOL: normEOL,
isSlim: isSlim,
Loader: Loader,
};
}
}());