Throw an error when attempting to derive from a master path from a non-master node (#4551).

This commit is contained in:
Richard Moore 2024-02-14 13:11:54 -05:00
parent 7f14bdebf1
commit 556fdd91d9

@ -87,9 +87,12 @@ type HDNodeLike<T> = { depth: number, deriveChild: (i: number) => T };
function derivePath<T extends HDNodeLike<T>>(node: T, path: string): T { function derivePath<T extends HDNodeLike<T>>(node: T, path: string): T {
const components = path.split("/"); const components = path.split("/");
assertArgument(components.length > 0 && (components[0] === "m" || node.depth > 0), "invalid path", "path", path); assertArgument(components.length > 0, "invalid path", "path", path);
if (components[0] === "m") { components.shift(); } if (components[0] === "m") {
assertArgument(node.depth === 0, `cannot derive root path (i.e. path starting with "m/") for a node at non-zero depth ${ node.depth }`, "path", path);
components.shift();
}
let result: T = node; let result: T = node;
for (let i = 0; i < components.length; i++) { for (let i = 0; i < components.length; i++) {