Rollup merge of #58150 - GuillaumeGomez:dont-apply-impl-collapse-rule…

…s-to-trait-impls, r=Manishearth

Don't apply impl block collapse rules to trait impls

Fixes #58147.

r? @QuietMisdreavus

src/librustdoc/html/static/main.js

@@ -1935,9 +1935,9 @@ if (!DOMTokenList.prototype.remove) {
  };
  }
 
- function implHider(addOrRemove) {
+ function implHider(addOrRemove, fullHide) {
  return function(n) {
- var is_method = hasClass(n, "method");
+ var is_method = hasClass(n, "method") || fullHide;
  if (is_method || hasClass(n, "type")) {
  if (is_method === true) {
  if (addOrRemove) {
@@ -1991,7 +1991,7 @@ if (!DOMTokenList.prototype.remove) {
  }
  }
  } else {
- // we are collapsing the impl block
+ // we are collapsing the impl block(s).
 
  var parentElem = toggle.parentNode;
  relatedDoc = parentElem;
@@ -2006,7 +2006,7 @@ if (!DOMTokenList.prototype.remove) {
  return;
  }
 
- // Hide all functions, but not associated types/consts
+ // Hide all functions, but not associated types/consts.
 
  if (mode === "toggle") {
  if (hasClass(relatedDoc, "fns-now-collapsed") ||
@@ -2017,16 +2017,17 @@ if (!DOMTokenList.prototype.remove) {
  }
  }
 
+ var dontApplyBlockRule = toggle.parentNode.parentNode.id !== "main";
  if (action === "show") {
  removeClass(relatedDoc, "fns-now-collapsed");
  removeClass(docblock, "hidden-by-usual-hider");
- onEachLazy(toggle.childNodes, adjustToggle(false));
- onEachLazy(relatedDoc.childNodes, implHider(false));
+ onEachLazy(toggle.childNodes, adjustToggle(false, dontApplyBlockRule));
+ onEachLazy(relatedDoc.childNodes, implHider(false, dontApplyBlockRule));
  } else if (action === "hide") {
  addClass(relatedDoc, "fns-now-collapsed");
  addClass(docblock, "hidden-by-usual-hider");
- onEachLazy(toggle.childNodes, adjustToggle(true));
- onEachLazy(relatedDoc.childNodes, implHider(true));
+ onEachLazy(toggle.childNodes, adjustToggle(true, dontApplyBlockRule);
+ onEachLazy(relatedDoc.childNodes, implHider(true, dontApplyBlockRule));
  }
  }
  }