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/*
* Copyright 2022 Codeblog Corp. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
function loadCJS2ESM(resolvedSpecifier) {
"use strict";
var loader = @Loader;
var queue = @createFIFO();
var key = resolvedSpecifier;
while (key) {
// we need to explicitly check because state could be @ModuleFetch
// it will throw this error if we do not:
// @throwTypeError("Requested module is already fetched.");
var entry = loader.registry.@get(key);
if (!entry || !entry.state || entry.state <= @ModuleFetch) {
@fulfillModuleSync(key);
entry = loader.registry.@get(key);
}
// entry.fetch is a Promise<SourceCode>
// SourceCode is not a string, it's a JSC::SourceCode object
// this pulls it out of the promise without delaying by a tick
// the promise is already fullfilled by @fullfillModuleSync
var sourceCodeObject = @getPromiseInternalField(
entry.fetch,
@promiseFieldReactionsOrResult
);
// parseModule() returns a Promise, but the value is already fulfilled
// so we just pull it out of the promise here once again
// But, this time we do it a little more carefully because this is a JSC function call and not bun source code
var moduleRecordPromise = loader.parseModule(key, sourceCodeObject);
var module = entry.module;
if (!module && moduleRecordPromise && @isPromise(moduleRecordPromise)) {
var reactionsOrResult = @getPromiseInternalField(
moduleRecordPromise,
@promiseFieldReactionsOrResult
);
var flags = @getPromiseInternalField(
moduleRecordPromise,
@promiseFieldFlags
);
var state = flags & @promiseStateMask;
// this branch should never happen, but just to be safe
if (
state === @promiseStatePending ||
(reactionsOrResult && @isPromise(reactionsOrResult))
) {
@throwTypeError(`require() async module \"${key}\" is unsupported`);
} else if (state === @promiseStateRejected) {
// this branch happens if there is a syntax error and somehow bun didn't catch it
// "throw" is unsupported here, so we use "throwTypeError" (TODO: use SyntaxError but preserve the specifier)
@throwTypeError(
`${
reactionsOrResult?.message ?? "An error occurred"
} while parsing module \"${key}\"`
);
}
entry.module = module = reactionsOrResult;
} else if (moduleRecordPromise && !module) {
entry.module = module = moduleRecordPromise;
}
// This is very similar to "requestInstantiate" in ModuleLoader.js in JavaScriptCore.
@setStateToMax(entry, @ModuleLink);
var dependenciesMap = module.dependenciesMap;
var requestedModules = loader.requestedModules(module);
var dependencies = @newArrayWithSize(requestedModules.length);
for (var i = 0, length = requestedModules.length; i < length; ++i) {
var depName = requestedModules[i];
// optimization: if it starts with a slash then it's an absolute path
// we don't need to run the resolver a 2nd time
var depKey =
depName[0] === "/"
? depName
: loader.resolve(depName, key, @undefined);
var depEntry = loader.ensureRegistered(depKey);
if (depEntry.state < @ModuleLink) {
queue.push(depKey);
}
@putByValDirect(dependencies, i, depEntry);
dependenciesMap.@set(depName, depEntry);
}
entry.dependencies = dependencies;
// All dependencies resolved, set instantiate and satisfy field directly.
entry.instantiate = @Promise.resolve(entry)
entry.satisfy = @Promise.resolve(entry);
key = queue.shift();
while (key && (loader.registry.@get(key)?.state ?? @ModuleFetch) >= @ModuleLink) {
key = queue.shift();
}
}
var linkAndEvaluateResult = loader.linkAndEvaluateModule(
resolvedSpecifier,
@undefined
);
if (linkAndEvaluateResult && @isPromise(linkAndEvaluateResult)) {
// if you use top-level await, or any dependencies use top-level await, then we throw here
// this means the module will still actually load eventually, but that's okay.
@throwTypeError(
`require() async module \"${resolvedSpecifier}\" is unsupported`
);
}
return loader.registry.@get(resolvedSpecifier);
}
function requireESM(resolved) {
"use strict";
var entry = @Loader.registry.@get(resolved);
if (!entry || !entry.evaluated) {
entry = @loadCJS2ESM(resolved);
}
if (!entry || !entry.evaluated || !entry.module) {
@throwTypeError(`require() failed to evaluate module \"${resolved}\". This is an internal consistentency error.`);
}
var exports = @Loader.getModuleNamespaceObject(entry.module);
var commonJS = exports.default;
var cjs = commonJS?.[@commonJSSymbol];
if (cjs === 0) {
return commonJS;
} else if (cjs && @isCallable(commonJS)) {
return commonJS();
}
return exports;
}
function internalRequire(resolved) {
"use strict";
var cached = @requireMap.@get(resolved);
const last5 = resolved.substring(resolved.length - 5);
if (cached) {
if (last5 === ".node") {
return cached.exports;
}
return cached;
}
// TODO: remove this hardcoding
if (last5 === ".json") {
var fs = (globalThis[Symbol.for("_fs")] ||= @Bun.fs());
var exports = JSON.parse(fs.readFileSync(resolved, "utf8"));
@requireMap.@set(resolved, exports);
return exports;
} else if (last5 === ".node") {
var module = { exports: {} };
process.dlopen(module, resolved);
@requireMap.@set(resolved, module);
return module.exports;
} else if (last5 === ".toml") {
var fs = (globalThis[Symbol.for("_fs")] ||= @Bun.fs());
var exports = @Bun.TOML.parse(fs.readFileSync(resolved, "utf8"));
@requireMap.@set(resolved, exports);
return exports;
} else {
var exports = @requireESM(resolved);
@requireMap.@set(resolved, exports);
return exports;
}
}
function require(name) {
const from = this?.path ?? arguments.callee.path;
if (typeof name !== "string") {
@throwTypeError("require(name) must be a string");
}
return @internalRequire(@resolveSync(name, from));
}
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