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More helpful error message for missing decoratorsBeforeExport in parser (#8576)

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This commit is contained in:
Nicolò Ribaudo
2018-08-29 16:02:18 +02:00
committed by Brian Ng
parent 04d09cc754
commit 9d244ae66b
2 changed files with 5 additions and 3 deletions
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6
packages/babel-parser/src/plugin-utils.js
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@@ -55,8 +55,10 @@ export function validatePlugins(plugins: PluginList) {
);
if (decoratorsBeforeExport == null) {
throw new Error(
"The 'decorators' plugin requires a" +
" 'decoratorsBeforeExport' option, whose value must be a boolean.",
"The 'decorators' plugin requires a 'decoratorsBeforeExport' option," +
" whose value must be a boolean. If you are migrating from" +
" Babylon/Babel 6 or want to use the old decorators proposal, you" +
" should use the 'decorators-legacy' plugin instead of 'decorators'.",
);
} else if (typeof decoratorsBeforeExport !== "boolean") {
throw new Error("'decoratorsBeforeExport' must be a boolean.");