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fix: update warning codes for svelte5 #1044

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Merged
merged 4 commits into from
Dec 12, 2024
Merged

fix: update warning codes for svelte5 #1044

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4decc2d
fix: update warning codes for svelte5
dominikg Dec 11, 2024
ea897b9
fix(audit): bump nanoid
dominikg Dec 11, 2024
b855833
fix: replace css error code detection so that it works for svelte5
dominikg Dec 12, 2024
e1bda5b
chore: update changeset
dominikg Dec 12, 2024
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5 changes: 5 additions & 0 deletions .changeset/eleven-pears-compare.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'@sveltejs/vite-plugin-svelte': patch
---

use correct warning code to hide unused css selector warning coming from vite-plugin-svelte injected code during development
2 changes: 1 addition & 1 deletion packages/e2e-tests/import-queries/svelte.config.js
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Expand Up @@ -4,7 +4,7 @@ export default {
preprocess: [vitePreprocess()],
onwarn(warning, defaultHandler) {
// import query test generates one of these
if (warning.code === 'custom-element-no-tag') return;
if (warning.code === 'options_missing_custom_element') return;
defaultHandler(warning);
}
};
1 change: 1 addition & 0 deletions packages/vite-plugin-svelte/src/utils/error.js
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Expand Up @@ -114,6 +114,7 @@ export function enhanceCompileError(err, originalCode, preprocessors) {

// Handle incorrect CSS preprocessor usage
if (err.code === 'css-syntax-error') {
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@dummdidumm whats the new way to identify css syntax errors? i looked but didn't find the corrosponding code in svelte5

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There are two things you can look for:

  • any error starting with css_ - right now it's css_expected_identifier, css_selector_invalid and css_empty_declaration
  • more general errors: expected_token and unexpected_eof - though these could also happen in other parts outside the style sheet (not sure if that is a problem)

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added with generic startswith css_ , technically this could introduce false positives for users who don't use a css preprocessor, so if we want to play it conservative, we'd have to use a hardcoded list at the cost of that getting out of date if new codes are added.

// TODO find the correct new code or new way to identify css syntax error
// Reference from Svelte: https://github.com/sveltejs/svelte/blob/9926347ad9dbdd0f3324d5538e25dcb7f5e442f8/packages/svelte/src/compiler/preprocess/index.js#L257
const styleRe =
/<!--[^]*?-->|<style((?:\s+[^=>'"/]+=(?:"[^"]*"|'[^']*'|[^>\s]+)|\s+[^=>'"/]+)*\s*)(?:\/>|>([\S\s]*?)<\/style>)/g;
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4 changes: 2 additions & 2 deletions packages/vite-plugin-svelte/src/utils/log.js
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Expand Up @@ -182,7 +182,7 @@ export function logCompilerWarnings(svelteRequest, warnings, options) {
*/
function ignoreCompilerWarning(warning, isBuild, emitCss) {
return (
(!emitCss && warning.code === 'css-unused-selector') || // same as rollup-plugin-svelte
(!emitCss && warning.code === 'css_unused_selector') || // same as rollup-plugin-svelte
(!isBuild && isNoScopableElementWarning(warning))
);
}
Expand All @@ -194,7 +194,7 @@ function ignoreCompilerWarning(warning, isBuild, emitCss) {
*/
function isNoScopableElementWarning(warning) {
// see https://github.com/sveltejs/vite-plugin-svelte/issues/153
return warning.code === 'css-unused-selector' && warning.message.includes('"*"');
return warning.code === 'css_unused_selector' && warning.message.includes('"*"');
}

/**
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