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Use wrapYieldingFiberMethods from @wry/context.

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Ben Newman
2019-04-10 18:48:10 -04:00
parent d1f8bca88b
commit 466cda693e
1 changed files with 1 additions and 19 deletions
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20
tools/tool-env/wrap-fibers.js
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@@ -1,19 +1 @@
const { noContext } = require("optimism");
if (noContext) {
// If we're using a modern version of optimism that supports noContext,
// we can use it to wrap yielding Fiber functions so that the current
// context is suspended before the yield and restored immediately after.
const Fiber = require("fibers");
function wrap(obj, method) {
const fn = obj[method];
obj[method] = function () {
return noContext(fn, arguments, this);
};
}
// These methods can yield, according to
// https://github.com/laverdet/node-fibers/blob/ddebed9b8ae3883e57f822e2108e6943e5c8d2a8/fibers.js#L97-L100
wrap(Fiber, "yield");
wrap(Fiber.prototype, "run");
wrap(Fiber.prototype, "throwInto");
}
require("@wry/context").wrapYieldingFiberMethods(require("fibers"));