Import map merging #91
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CertainLach
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| #[derive(Debug, Clone)] | ||
| pub struct SpecifierMap { | ||
| #[deprecated = "import map base_url doesn't work with merged import maps"] | ||
| base_url: Url, |
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It seems that base_url be better stored by the side of ImportMaps that are not merged on the application side.
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| #[deprecated = "specifier map base_url doesn't work with merged import maps"] | ||
| #[allow(deprecated)] | ||
| pub fn append(&mut self, key: String, value: String) -> Result<(), String> { |
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...In that case, methods like this be better implemented on SpecifierMapBuilder struct
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| #[deprecated = "specifier map base_url doesn't work with merged import maps"] | ||
| #[allow(deprecated)] | ||
| pub fn contains(&self, key: &str) -> bool { |
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Yet I have no idea what's the good place for this nethod, but it doesn't seem to be used anywhere
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Might as well postpone deprecation of base_url and related methods, It's just feels wrong to have such api, because all of the deprecated methods doesn't seem to be fit for already constructed import map, especially with how merged and synthetic ones behave. In case of synthetic import maps, deno already had an error, because workspace synthetic import map had inherited import_url from either deno.json, or from importMap declared in deno.json/passed using --import-map. Second case is invalid, because all the relative paths seem to be rewritten incorrectly when I was testing, and now I'm always setting workspace deno.json, which may not exist, but which makes sense for workspace package resolution. |
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My implementation of multiple import maps in deno (denoland/deno#30754) iterates over import maps to find matches. It is, however, unable to detect if
ImportMap::resolvehas returned an entry, that should be tried from next import map.This change allows to only return remapped paths.
This PR also implements import map merging as described by spec: https://html.spec.whatwg.org/multipage/webappapis.html#merge-existing-and-new-import-maps
I can split those changes if that would be better for review purposes
Ref: denoland/deno#30754 (comment)