docs, test: clarify how to hook a module sub-path using .cjs extension#89
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docs, test: clarify how to hook a module sub-path using .cjs extension#89
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david-luna
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May 7, 2024
trentm
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jsumners-nr
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May 8, 2024
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| // E.g., a Hook arg of `cjs-sub-module/foo` will **not** hook | ||
| // `./node_modules/cjs-sub-module/foo.cjs`. This is different compared to `.js` | ||
| // file extension usage. The difference is that Node.js's `require()` treats | ||
| // `.js` and `.cjs` differently. | ||
| // See https://nodejs.org/api/modules.html#file-modules |
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I understand the reasoning, but it would make instrumenting modules very complicated. The end user API of require-in-the-middle is that the export of whatever targeted module is provided to the hook function. The (package.json).exports map complicates this as it can resolve the same export name to multiple extensions. In my view, the hook function shouldn't need to know about that detail. It should just receive the right thing.
trentm
commented
Jul 18, 2024
| the `modules` entry. E.g. `@langchain/core/dist/callbacks/manager.cjs` is | ||
| required to hook | ||
| `.../node_modules/@langchain/core/dist/callbacks/manager.cjs`. | ||
| This is because []`.cjs` is not handled specially by `require()` the way |
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| This is because []`.cjs` is not handled specially by `require()` the way | |
| This is because [`.cjs` is not handled specially by `require()` the way |
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Refs: #88 (comment)
Repeating part of that comment above: