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enable prefer const (#5113)

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This commit is contained in:
Henry Zhu
2017-01-14 09:48:52 -05:00
committed by GitHub
parent 982850731e
commit 672adba9a1
177 changed files with 1862 additions and 1863 deletions
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28
packages/babel-plugin-transform-es2015-spread/src/index.js
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@@ -17,7 +17,7 @@ export default function ({ types: t }) {
}
function build(props: Array, scope, state) {
let nodes = [];
const nodes = [];
let _props = [];
@@ -27,7 +27,7 @@ export default function ({ types: t }) {
_props = [];
}
for (let prop of props) {
for (const prop of props) {
if (t.isSpreadElement(prop)) {
push();
nodes.push(getSpreadLiteral(prop, scope, state));
@@ -44,11 +44,11 @@ export default function ({ types: t }) {
return {
visitor: {
ArrayExpression(path, state) {
let { node, scope } = path;
let elements = node.elements;
const { node, scope } = path;
const elements = node.elements;
if (!hasSpread(elements)) return;
let nodes = build(elements, scope, state);
const nodes = build(elements, scope, state);
let first = nodes.shift();
if (!t.isArrayExpression(first)) {
@@ -60,12 +60,12 @@ export default function ({ types: t }) {
},
CallExpression(path, state) {
let { node, scope } = path;
const { node, scope } = path;
let args = node.arguments;
const args = node.arguments;
if (!hasSpread(args)) return;
let calleePath = path.get("callee");
const calleePath = path.get("callee");
if (calleePath.isSuper()) return;
let contextLiteral = t.identifier("undefined");
@@ -79,17 +79,17 @@ export default function ({ types: t }) {
nodes = build(args, scope, state);
}
let first = nodes.shift();
const first = nodes.shift();
if (nodes.length) {
node.arguments.push(t.callExpression(t.memberExpression(first, t.identifier("concat")), nodes));
} else {
node.arguments.push(first);
}
let callee = node.callee;
const callee = node.callee;
if (calleePath.isMemberExpression()) {
let temp = scope.maybeGenerateMemoised(callee.object);
const temp = scope.maybeGenerateMemoised(callee.object);
if (temp) {
callee.object = t.assignmentExpression("=", temp, callee.object);
contextLiteral = temp;
@@ -109,13 +109,13 @@ export default function ({ types: t }) {
},
NewExpression(path, state) {
let { node, scope } = path;
const { node, scope } = path;
let args = node.arguments;
if (!hasSpread(args)) return;
let nodes = build(args, scope, state);
const nodes = build(args, scope, state);
let context = t.arrayExpression([t.nullLiteral()]);
const context = t.arrayExpression([t.nullLiteral()]);
args = t.callExpression(t.memberExpression(context, t.identifier("concat")), nodes);