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Correct update expression Number coercion (#7766)

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* Correct update expression Number coercion

You have to `ToNumber` whatever the `UpdateExpression` argument is.

* Fix systemjs update expression
This commit is contained in:
Justin Ridgewell
2018-04-22 13:50:11 -04:00
committed by GitHub
parent 890a45216f
commit 34d73ebef0
7 changed files with 40 additions and 28 deletions
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4
packages/babel-plugin-transform-modules-commonjs/test/fixtures/regression/4462-T7565/output.js vendored
View File

@@ -5,9 +5,9 @@ Object.defineProperty(exports, "__esModule", {
});
exports.zz = exports.yy = void 0;
var _old;
var _yy;
var yy = 0;
exports.yy = yy;
var zz = (_old = yy, exports.yy = yy = _old + 1, _old);
var zz = (_yy = +yy, exports.yy = yy = _yy + 1, _yy);
exports.zz = zz;

2
packages/babel-plugin-transform-modules-commonjs/test/fixtures/update-expression/negative-suffix/output.js vendored
View File

@@ -9,7 +9,7 @@ let diffLevel = 0;
exports.diffLevel = diffLevel;
function diff() {
if (!(exports.diffLevel = diffLevel = diffLevel - 1)) {
if (!(exports.diffLevel = diffLevel = +diffLevel - 1)) {
console.log("hey");
}
}

2
packages/babel-plugin-transform-modules-commonjs/test/fixtures/update-expression/positive-suffix/output.js vendored
View File

@@ -9,7 +9,7 @@ let diffLevel = 0;
exports.diffLevel = diffLevel;
function diff() {
if (!(exports.diffLevel = diffLevel = diffLevel + 1)) {
if (!(exports.diffLevel = diffLevel = +diffLevel + 1)) {
console.log("hey");
}
}