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@volar/language-core
Advanced tools
@volar/language-core is a core library for the Volar language server, which provides enhanced language support for Vue.js. It offers features like type checking, code completion, and diagnostics for Vue components.
Type Checking
This feature allows you to perform type checking on Vue components. The code sample demonstrates how to create a language service and get semantic diagnostics for a Vue file.
const { createLanguageService } = require('@volar/language-core');
const service = createLanguageService({
getScriptFileNames: () => ['example.vue'],
getScriptVersion: () => '1',
getScriptSnapshot: (fileName) => {
if (fileName === 'example.vue') {
return {
getText: (start, end) => '<template><div>{{ message }}</div></template><script>export default { data() { return { message: 123 }; } };</script>',
getLength: () => 100,
getChangeRange: () => undefined
};
}
},
getCurrentDirectory: () => '/',
getCompilationSettings: () => ({}),
getDefaultLibFileName: () => 'lib.d.ts'
});
const diagnostics = service.getSemanticDiagnostics('example.vue');
console.log(diagnostics);
Code Completion
This feature provides code completion suggestions for Vue components. The code sample shows how to create a language service and get code completions at a specific position in a Vue file.
const { createLanguageService } = require('@volar/language-core');
const service = createLanguageService({
getScriptFileNames: () => ['example.vue'],
getScriptVersion: () => '1',
getScriptSnapshot: (fileName) => {
if (fileName === 'example.vue') {
return {
getText: (start, end) => '<template><div>{{ message }}</div></template><script>export default { data() { return { message: 123 }; } };</script>',
getLength: () => 100,
getChangeRange: () => undefined
};
}
},
getCurrentDirectory: () => '/',
getCompilationSettings: () => ({}),
getDefaultLibFileName: () => 'lib.d.ts'
});
const completions = service.getCompletionsAtPosition('example.vue', 10, {});
console.log(completions);
Diagnostics
This feature provides diagnostics for Vue components, helping to identify syntax errors. The code sample demonstrates how to create a language service and get syntactic diagnostics for a Vue file.
const { createLanguageService } = require('@volar/language-core');
const service = createLanguageService({
getScriptFileNames: () => ['example.vue'],
getScriptVersion: () => '1',
getScriptSnapshot: (fileName) => {
if (fileName === 'example.vue') {
return {
getText: (start, end) => '<template><div>{{ message }}</div></template><script>export default { data() { return { message: 123 }; } };</script>',
getLength: () => 100,
getChangeRange: () => undefined
};
}
},
getCurrentDirectory: () => '/',
getCompilationSettings: () => ({}),
getDefaultLibFileName: () => 'lib.d.ts'
});
const diagnostics = service.getSyntacticDiagnostics('example.vue');
console.log(diagnostics);
typescript-vue-plugin is a TypeScript plugin that adds Vue support to the TypeScript language service. It provides features like type checking, code completion, and diagnostics for Vue components. Compared to @volar/language-core, it is more tightly integrated with TypeScript and may be easier to set up for projects already using TypeScript.
Vetur is a Visual Studio Code extension that provides Vue tooling support, including syntax highlighting, type checking, code completion, and diagnostics. While Vetur offers a comprehensive set of features for Vue development, @volar/language-core is designed to be more modular and can be used in different environments beyond just VS Code.
vue-language-server is a language server implementation for Vue.js, providing features like type checking, code completion, and diagnostics. It is similar to @volar/language-core in terms of functionality but may have different performance characteristics and configuration options.
2.4.1 (2024-08-29)
openUntitledDocument
params orderrunTsc
does not recognize service script with preventLeadingOffset
enabledsetTimeout
with setImmediate
(#234) - Thanks to @nieyuyao!onDidChange
API for LanguageServer.workspaceFolders
error
, source
params for verification.shouldReport
hookFAQs
Unknown package
The npm package @volar/language-core receives a total of 1,376,546 weekly downloads. As such, @volar/language-core popularity was classified as popular.
We found that @volar/language-core demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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