René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Provide built-in implementations of module linker, initializeImportMeta, importModuleDynamically","articleBody":"**Is your feature request related to a problem? Please describe.**\r\n\r\nWhen using vm.SourceTextModule we have to implement a linker, initializeImportMeta, and importModuleDynamically, even if we just want the default behavior of built-in module support. There are many subtle ways to get that wrong.\r\n\r\n**Describe the solution you'd like**\r\n\r\nDefault implementations that do basically what built-in module support does:\r\n- A linker function that:\r\n  - Reads files from disk, within a specified root.\r\n  - Uses Node module resolution as implemented for modules\r\n  - Uses a specified module cache\r\n  - `initializeImportMeta` that sets `url` property\r\n  - By configuration, allows access to built-in modules.\r\n\r\n**Describe alternatives you've considered**\r\n\r\nUserland libraries can take the first cuts at easy-to-use vm.Modules, but I think something for common use cases should likely be included.\r\n\r\n","author":{"url":"https://github.com/justinfagnani","@type":"Person","name":"justinfagnani"},"datePublished":"2020-01-07T00:08:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":11},"url":"https://github.com/31234/node/issues/31234"}