Rollup merge of #84150 - jsha:defer-search-js, r=GuillaumeGomez

rustdoc: move some search code into search.js

This reduces main.s from 3094 lines to 1587. Also it saves some bytes
of download in the case where search isn't used.

There were a fair number of variables that needed to be accessible in
both main.js and search.js, but I didn't want to put too many symbols in
the global namespace, so I consolidated much of the search-related
state and functions into a new object `window.searchState`.

Demo at https://hoffman-andrews.com/rust/move-search/std/?search=foo

1 files changed, 6 insertions, 6 deletions

diff --git a/src/tools/rustdoc-js/tester.js b/src/tools/rustdoc-js/tester.js
index a551a97bda5..e583bd225a9 100644
--- a/src/tools/rustdoc-js/tester.js
+++ b/src/tools/rustdoc-js/tester.js
@@ -246,7 +246,7 @@ function lookForEntry(entry, data) {
     return null;
 }
 
-function loadMainJsAndIndex(mainJs, searchIndex, storageJs, crate) {
+function loadSearchJsAndIndex(searchJs, searchIndex, storageJs, crate) {
     if (searchIndex[searchIndex.length - 1].length === 0) {
         searchIndex.pop();
     }
@@ -270,9 +270,9 @@ function loadMainJsAndIndex(mainJs, searchIndex, storageJs, crate) {
     ALIASES = {};
     finalJS += 'window = { "currentCrate": "' + crate + '", rootPath: "../" };\n';
     finalJS += loadThings(["hasOwnProperty", "onEach"], 'function', extractFunction, storageJs);
-    finalJS += loadThings(arraysToLoad, 'array', extractArrayVariable, mainJs);
-    finalJS += loadThings(variablesToLoad, 'variable', extractVariable, mainJs);
-    finalJS += loadThings(functionsToLoad, 'function', extractFunction, mainJs);
+    finalJS += loadThings(arraysToLoad, 'array', extractArrayVariable, searchJs);
+    finalJS += loadThings(variablesToLoad, 'variable', extractVariable, searchJs);
+    finalJS += loadThings(functionsToLoad, 'function', extractFunction, searchJs);
 
     var loaded = loadContent(finalJS);
     var index = loaded.buildIndex(searchIndex.rawSearchIndex);
@@ -382,12 +382,12 @@ function runChecks(testFile, loaded, index) {
 }
 
 function load_files(doc_folder, resource_suffix, crate) {
-    var mainJs = readFile(path.join(doc_folder, "main" + resource_suffix + ".js"));
+    var searchJs = readFile(path.join(doc_folder, "search" + resource_suffix + ".js"));
     var storageJs = readFile(path.join(doc_folder, "storage" + resource_suffix + ".js"));
     var searchIndex = readFile(
         path.join(doc_folder, "search-index" + resource_suffix + ".js")).split("\n");
 
-    return loadMainJsAndIndex(mainJs, searchIndex, storageJs, crate);
+    return loadSearchJsAndIndex(searchJs, searchIndex, storageJs, crate);
 }
 
 function showHelp() {