t.traverse(ast, (node, ancestors) => {
const parent = ancestors[ancestors.length - 1];
if (t.isWithStatement(node)) {
shouldUpdate = false;
return;
}
if (!isTopLevel(ancestors)) {
return;
}
if (t.isAssignmentExpression(node)) {
if (t.isIdentifier(node.left) || t.isPattern(node.left)) {
const newNode = globalizeAssignment(node, bindings);
isMapped = true;
return replaceNode(ancestors, newNode);
}
return;
}
if (!t.isVariableDeclaration(node)) {
return;
}
if (!t.isForStatement(parent.node)) {
const newNodes = globalizeDeclaration(node, bindings);
isMapped = true;
replaceNode(ancestors, newNodes);
}
});
t.traverse(ast, (node, ancestors) => {
const parent = ancestors[ancestors.length - 1];
if (
t.isWithStatement(node) ||
!isTopLevel(ancestors) ||
t.isAssignmentExpression(node) ||
!t.isVariableDeclaration(node) ||
t.isForStatement(parent.node) ||
!Array.isArray(node.declarations) ||
node.declarations.length === 0
) {
return;
}
const newNodes = translateDeclarationIntoAssignment(node);
replaceNode(ancestors, newNodes);
declarations.push(node);
});