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Fixed loose option of transform-es2015-parameters handling only Assig… (#6274)

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This commit is contained in:
Mateusz Burzyński
2017-09-23 01:39:39 +02:00
committed by Justin Ridgewell
parent 0f8c4dc5a1
commit d8b7bc39af
5 changed files with 68 additions and 41 deletions
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70
packages/babel-plugin-transform-es2015-parameters/src/params.js
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@@ -54,53 +54,41 @@ export default function convertFunctionParams(path, loose) {
};
const body = [];
let firstOptionalIndex = null;
//
const params = path.get("params");
if (loose) {
const body = [];
for (let i = 0; i < params.length; ++i) {
const param = params[i];
if (param.isAssignmentPattern()) {
const left = param.get("left");
const right = param.get("right");
const undefinedNode = scope.buildUndefinedNode();
if (left.isIdentifier()) {
body.push(
buildLooseDefaultParam({
ASSIGNMENT_IDENTIFIER: left.node,
DEFAULT_VALUE: right.node,
UNDEFINED: undefinedNode,
}),
);
param.replaceWith(left.node);
} else if (left.isObjectPattern() || left.isArrayPattern()) {
const paramName = scope.generateUidIdentifier();
body.push(
buildLooseDestructuredDefaultParam({
ASSIGNMENT_IDENTIFIER: left.node,
DEFAULT_VALUE: right.node,
PARAMETER_NAME: paramName,
UNDEFINED: undefinedNode,
}),
);
param.replaceWith(paramName);
}
}
}
path.get("body").unshiftContainer("body", body);
return;
}
let firstOptionalIndex = null;
for (let i = 0; i < params.length; i++) {
const param = params[i];
if (param.isAssignmentPattern()) {
if (param.isAssignmentPattern() && loose) {
const left = param.get("left");
const right = param.get("right");
const undefinedNode = scope.buildUndefinedNode();
if (left.isIdentifier()) {
body.push(
buildLooseDefaultParam({
ASSIGNMENT_IDENTIFIER: left.node,
DEFAULT_VALUE: right.node,
UNDEFINED: undefinedNode,
}),
);
param.replaceWith(left.node);
} else if (left.isObjectPattern() || left.isArrayPattern()) {
const paramName = scope.generateUidIdentifier();
body.push(
buildLooseDestructuredDefaultParam({
ASSIGNMENT_IDENTIFIER: left.node,
DEFAULT_VALUE: right.node,
PARAMETER_NAME: paramName,
UNDEFINED: undefinedNode,
}),
);
param.replaceWith(paramName);
}
} else if (param.isAssignmentPattern()) {
if (firstOptionalIndex === null) firstOptionalIndex = i;
const left = param.get("left");