@platformos/pos-cli
Version:
Manage your platformOS application
22 lines (20 loc) • 686 B
JavaScript
/**
* Copyright (c) 2019 GraphQL Contributors
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
// Utility for iterating through a CodeMirror parse state stack bottom-up.
export default function forEachState(stack, fn) {
const reverseStateStack = [];
let state = stack;
while (state && state.kind) {
reverseStateStack.push(state);
state = state.prevState;
}
for (let i = reverseStateStack.length - 1; i >= 0; i--) {
fn(reverseStateStack[i]);
}
}