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Merge pull request #2737 from babel/thejameskyle-patch-1

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Fix minify-booleans transform
This commit is contained in:
Sebastian McKenzie
2015-11-02 19:27:53 +00:00
parent 0767616934 45d8ac7c12
commit 82dbbc95e1
4 changed files with 10 additions and 3 deletions
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2
packages/babel-core/test/fixtures/transformation/minification.booleans/booleans/actual.js vendored Normal file
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@@ -0,0 +1,2 @@
true;
false;

2
packages/babel-core/test/fixtures/transformation/minification.booleans/booleans/expected.js vendored Normal file
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@@ -0,0 +1,2 @@
!0;
!1;

3
packages/babel-core/test/fixtures/transformation/minification.booleans/options.json vendored Normal file
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@@ -0,0 +1,3 @@
{
"plugins": ["transform-minify-booleans"]
}

6
packages/babel-plugin-transform-minify-booleans/src/index.js
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@@ -1,9 +1,9 @@
export default function ({ types: t }) {
return {
visitor: {
Literal(node) {
if (typeof node.value === "boolean") {
return t.unaryExpression("!", t.literal(+!node.value), true);
Literal(path) {
if (typeof path.node.value === "boolean") {
path.replaceWith(t.unaryExpression("!", t.numberLiteral(+!path.node.value), true));
}
}
}