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node_shell_read.js

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/**

* @license

* Copyright 2019 The Emscripten Authors

* SPDX-License-Identifier: MIT

*/

requireNodeFS = () => {

// Use nodePath as the indicator for these not being initialized,

// since in some environments a global fs may have already been

// created.

if (!nodePath) {

fs = require('fs');

nodePath = require('path');

}

};

read_ = function shell_read(filename, binary) {

#if SUPPORT_BASE64_EMBEDDING

var ret = tryParseAsDataURI(filename);

if (ret) {

return binary ? ret : ret.toString();

}

#endif

requireNodeFS();

filename = nodePath['normalize'](filename);

return fs.readFileSync(filename, binary ? undefined : 'utf8');

};

readBinary = (filename) => {

var ret = read_(filename, true);

if (!ret.buffer) {

ret = new Uint8Array(ret);

}

#if ASSERTIONS

assert(ret.buffer);

#endif

return ret;

};

readAsync = (filename, onload, onerror) => {

#if SUPPORT_BASE64_EMBEDDING

var ret = tryParseAsDataURI(filename);

if (ret) {

onload(ret);

}

#endif

requireNodeFS();

filename = nodePath['normalize'](filename);

fs.readFile(filename, function(err, data) {

if (err) onerror(err);

else onload(data.buffer);

});

};