32 lines
916 B
JavaScript
32 lines
916 B
JavaScript
/*
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* Support for a "transform" loader interface
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*/
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(function () {
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const systemJSPrototype = System.constructor.prototype;
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const instantiate = systemJSPrototype.instantiate;
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systemJSPrototype.instantiate = function (url, parent) {
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if (url.slice(-5) === '.wasm')
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return instantiate.call(this, url, parent);
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const loader = this;
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return fetch(url)
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.then(function (res) {
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if (!res.ok)
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throw new Error('Fetch error: ' + res.status + ' ' + res.statusText + (parent ? ' loading from ' + parent : ''));
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return res.text();
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})
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.then(function (source) {
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return loader.transform.call(this, url, source);
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})
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.then(function (source) {
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(0, eval)(source + '\n//# sourceURL=' + url);
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return loader.getRegister();
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});
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};
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// Hookable transform function!
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systemJSPrototype.transform = function (_id, source) {
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return source;
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};
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})(); |