File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = hoistVariables;
var _t = require("@babel/types");
const {
assignmentExpression,
expressionStatement,
identifier
} = _t;
const visitor = {
Scope(path, state) {
if (state.kind === "let") path.skip();
},
FunctionParent(path) {
path.skip();
},
VariableDeclaration(path, state) {
if (state.kind && path.node.kind !== state.kind) return;
const nodes = [];
const declarations = path.get("declarations");
let firstId;
for (const declar of declarations) {
firstId = declar.node.id;
if (declar.node.init) {
nodes.push(expressionStatement(assignmentExpression("=", declar.node.id, declar.node.init)));
}
for (const name of Object.keys(declar.getBindingIdentifiers())) {
state.emit(identifier(name), name, declar.node.init !== null);
}
}
if (path.parentPath.isFor({
left: path.node
})) {
path.replaceWith(firstId);
} else {
path.replaceWithMultiple(nodes);
}
}
};
function hoistVariables(path, emit, kind = "var") {
path.traverse(visitor, {
kind,
emit
});
}