mirror of
https://github.com/oven-sh/bun
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3c87fbfd37
This allows synchronous dynamic loading of `.node`, `.json`, and `.toml` files. It is not a CommonJS require, but it can be used that way so long as the content is not JavaScript.
63 lines
2.5 KiB
JavaScript
63 lines
2.5 KiB
JavaScript
/*
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* Copyright 2022 Codeblog Corp. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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function require(name) {
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"use strict";
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if (typeof name !== "string") {
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@throwTypeError("require() expects a string as its argument");
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}
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const resolved = this.resolveSync(name, this.path);
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var requireCache = (globalThis[Symbol.for("_requireCache")] ||= new @Map);
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var cached = requireCache.@get(resolved);
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if (cached) {
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if (resolved.endsWith(".node")) {
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return cached.exports;
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}
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return cached;
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}
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// TODO: remove this hardcoding
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if (resolved.endsWith(".json")) {
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var fs = (globalThis[Symbol.for("_fs")] ||= Bun.fs());
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var exports = JSON.parse(fs.readFileSync(resolved, "utf8"));
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requireCache.@set(resolved, exports);
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return cached;
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} else if (resolved.endsWith(".node")) {
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var module = { exports: {} };
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globalThis.process.dlopen(module, resolved);
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requireCache.@set(resolved, module);
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return module.exports;
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} else if (resolved.endsWith(".toml")) {
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var fs = (globalThis[Symbol.for("_fs")] ||= Bun.fs());
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var exports = Bun.TOML.parse(fs.readFileSync(resolved, "utf8"));
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requireCache.@set(resolved, exports);
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return exports;
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}
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@throwTypeError(`Dynamic require isn't supported for file type: ${resolved.subsring(resolved.lastIndexOf(".") + 1) || resolved}`);
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}
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