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denoland-deno/ext/node/polyfills/upstream_modules.ts
Bartek Iwańczuk d47147fb6a
feat(ext/node): embed std/node into the snapshot (#17724)
This commit moves "deno_std/node" in "ext/node" crate. The code is
transpiled and snapshotted during the build process.

During the first pass a minimal amount of work was done to create the
snapshot, a lot of code in "ext/node" depends on presence of "Deno"
global. This code will be gradually fixed in the follow up PRs to migrate
it to import relevant APIs from "internal:" modules.

Currently the code from snapshot is not used in any way, and all
Node/npm compatibility still uses code from 
"https://deno.land/std/node" (or from the location specified by 
"DENO_NODE_COMPAT_URL"). This will also be handled in a follow 
up PRs.

---------

Co-authored-by: crowlkats <crowlkats@toaxl.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
2023-02-14 17:38:45 +01:00

39 lines
1.3 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
// Upstream modules
const callerPath = `const callerCallsite = require("caller-callsite");
const re = /^file:/;
module.exports = () => {
const fileUrl = callerCallsite().getFileName();
return fileUrl.replace(re, "");
};
`;
// From: https://github.com/stefanpenner/get-caller-file/blob/2383bf9e98ed3c568ff69d7586cf59c0f1dcb9d3/index.ts
const getCallerFile = `
const re = /^file:\\/\\//;
module.exports = function getCallerFile(position = 2) {
if (position >= Error.stackTraceLimit) {
throw new TypeError('getCallerFile(position) requires position be less then Error.stackTraceLimit but position was: "' + position + '" and Error.stackTraceLimit was: "' + Error.stackTraceLimit + '"');
}
const oldPrepareStackTrace = Error.prepareStackTrace;
Error.prepareStackTrace = (_, stack) => stack;
const stack = new Error().stack;
Error.prepareStackTrace = oldPrepareStackTrace;
if (stack !== null && typeof stack === 'object') {
// stack[0] holds this file
// stack[1] holds where this function was called
// stack[2] holds the file we're interested in
return stack[position] ? stack[position].getFileName().replace(re, "") : undefined;
}
};
`;
export default {
"caller-path": callerPath,
"get-caller-file": getCallerFile,
} as Record<string, string>;