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throw error when attemping to replace a Program root node with another node not of type Program - closes #1762

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This commit is contained in:
Sebastian McKenzie 2015-06-16 01:53:53 +01:00
parent 92c4bbd003
commit 94c34e0132
1 changed files with 5 additions and 1 deletions
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6
src/babel/traversal/path/replacement.js
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@ -93,9 +93,13 @@ export function replaceWith(replacement, whateverAllowed) {
}
// normalise inserting an entire AST
if (t.isProgram(replacement)) {
if (t.isProgram(replacement) && !this.isProgram()) {
replacement = replacement.body;
whateverAllowed = true;
} else {
if (this.isProgram()) {
throw new Error("You can only replace a Program root node with another Program node");
}
}
if (Array.isArray(replacement)) {