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55 lines
1.3 KiB
55 lines
1.3 KiB
// resolve compilers to use.
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let cached
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exports.resolveCompiler = function (ctx, loaderContext) {
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if (cached) {
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return cached
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}
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// check 2.7
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try {
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const pkg = loadFromContext('vue/package.json', ctx)
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const [major, minor] = pkg.version.split('.')
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if (major === '2' && Number(minor) >= 7) {
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return (cached = {
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is27: true,
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compiler: loadFromContext('vue/compiler-sfc', ctx),
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templateCompiler: undefined
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})
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}
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} catch (e) {}
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return (cached = {
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compiler: require('@vue/component-compiler-utils'),
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templateCompiler: loadTemplateCompiler(ctx, loaderContext)
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})
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}
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function loadFromContext(path, ctx) {
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return require(require.resolve(path, {
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paths: [ctx]
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}))
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}
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function loadTemplateCompiler(ctx, loaderContext) {
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try {
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return loadFromContext('vue-template-compiler', ctx)
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} catch (e) {
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if (loaderContext) {
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if (/version mismatch/.test(e.toString())) {
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loaderContext.emitError(e)
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} else {
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loaderContext.emitError(
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new Error(
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`[vue-loader] vue-template-compiler must be installed as a peer dependency, ` +
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`or a compatible compiler implementation must be passed via options.`
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)
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)
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}
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} else {
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throw e
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}
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}
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}
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