Rollup merge of #142100 - lolbinarycat:rustdoc-srcIndex-138467, r=GuillaumeGomez

rustdoc: make srcIndex no longer a global variable

this is one-time initialization data, it can just
be a function parameter.

while we're doing that, we can more the json parsing into the function and save a few extra bytes of storage for free, at least in the case of multiple crates in a doc bundle.

fixes https://github.com/rust-lang/rust/issues/138467

1 files changed, 5 insertions, 4 deletions

diff --git a/src/librustdoc/html/static/js/src-script.js b/src/librustdoc/html/static/js/src-script.js
index b9ab6e85603..0c6afbeed22 100644
--- a/src/librustdoc/html/static/js/src-script.js
+++ b/src/librustdoc/html/static/js/src-script.js
@@ -1,6 +1,3 @@
-// From rust:
-/* global srcIndex */
-
 // Local js definitions:
 /* global addClass, onEachLazy, removeClass, browserSupportsHistoryApi */
 /* global updateLocalStorage, getVar, nonnull */
@@ -100,11 +97,15 @@ window.rustdocToggleSrcSidebar = () => {
 
 // This function is called from "src-files.js", generated in `html/render/write_shared.rs`.
 // eslint-disable-next-line no-unused-vars
-function createSrcSidebar() {
+/**
+ * @param {string} srcIndexStr - strinified json map from crate name to dir structure
+ */
+function createSrcSidebar(srcIndexStr) {
     const container = nonnull(document.querySelector("nav.sidebar"));
 
     const sidebar = document.createElement("div");
     sidebar.id = "src-sidebar";
+    const srcIndex = new Map(JSON.parse(srcIndexStr));
 
     let hasFoundFile = false;