Merge branch 'master' into nicedocs

ci/srht/update_download_page

@@ -100,6 +100,15 @@ cd "$SRCTARBALLDIR/ci/srht"
 CIDIR="$(pwd)"
 
 cd "$HOME"
+
+# Upload new stdlib autodocs 
+mkdir -p docs_to_upload/documentation/master/std/
+cp "$ZIGDIR/docs/std/index.html" docs_to_upload/documentation/master/std/index.html
+cp "$ZIGDIR/docs/std/data.js" docs_to_upload/documentation/master/std/data.js
+cp "$ZIGDIR/docs/std/main.js" docs_to_upload/documentation/master/std/main.js
+cp "$LANGREF" docs_to_upload/documentation/master/index.html
+$S3CMD put -P --no-mime-magic --recursive --add-header="Cache-Control: max-age=0, must-revalidate" "docs_to_upload/" s3://ziglang.org/
+
 git clone --depth 1 git@github.com:ziglang/www.ziglang.org.git
 cd www.ziglang.org
 WWWDIR="$(pwd)"
@@ -108,12 +117,6 @@ $S3CMD put -P --no-mime-magic --add-header="cache-control: public, max-age=31536
 
 cd "$WWWDIR"
 cp "$CIDIR/out/index.json" data/releases.json
-mkdir -p content/documentation/master/std
-cp "$LANGREF" content/documentation/master/index.html
-cp "$ZIGDIR/docs/std/index.html" content/documentation/master/std/index.html
-cp "$ZIGDIR/docs/std/data.js" content/documentation/master/std/data.js
-cp "$ZIGDIR/docs/std/main.js" content/documentation/master/std/main.js
 git add data/releases.json
-git add content/
-git commit -m "CI: update releases and docs"
+git commit -m "CI: update releases"
 git push origin master

lib/docs/index.html

@@ -650,6 +650,7 @@
             <div id="sectSearchResults" class="hidden">
               <h2>Search Results</h2>
               <ul id="listSearchResults"></ul>
+              <p id="sectSearchAllResultsLink" class="hidden"><a href="">show all results</a></p>
             </div>
             <div id="sectSearchNoResults" class="hidden">
               <h2>No Results Found</h2>

lib/docs/main.js

@@ -40,6 +40,7 @@ var zigAnalysis;
   const domDeclNoRef = document.getElementById("declNoRef");
   const domSearch = document.getElementById("search");
   const domSectSearchResults = document.getElementById("sectSearchResults");
+  const domSectSearchAllResultsLink = document.getElementById("sectSearchAllResultsLink");
 
   const domListSearchResults = document.getElementById("listSearchResults");
   const domSectSearchNoResults = document.getElementById("sectSearchNoResults");
@@ -51,9 +52,8 @@ var zigAnalysis;
   const domHelpModal = document.getElementById("helpModal");
   const domSearchPlaceholder = document.getElementById("searchPlaceholder");
 
-  domSearch.disabled = false;
-
   let searchTimer = null;
+  let searchTrimResults = true;
 
   let escapeHtmlReplacements = {
     "&": "&",
@@ -105,6 +105,7 @@ var zigAnalysis;
   // map of decl index to list of comptime fn calls
   // let nodesToCallsMap = indexNodesToCalls();
 
+  domSearch.disabled = false;
   domSearch.addEventListener("keydown", onSearchKeyDown, false);
   domSearch.addEventListener("focus", ev => {
     domSearchPlaceholder.classList.add("hidden");
@@ -113,6 +114,14 @@ var zigAnalysis;
     if (domSearch.value.length == 0)
       domSearchPlaceholder.classList.remove("hidden");
   });
+  domSectSearchAllResultsLink.addEventListener('click', onClickSearchShowAllResults, false);
+  function onClickSearchShowAllResults(ev) {
+      ev.preventDefault();
+      ev.stopPropagation();
+      searchTrimResults = false;
+      onHashChange();
+  }
+
   domPrivDeclsBox.addEventListener(
     "change",
     function () {
@@ -371,6 +380,7 @@ var zigAnalysis;
     domSectFns.classList.add("hidden");
     domSectFields.classList.add("hidden");
     domSectSearchResults.classList.add("hidden");
+    domSectSearchAllResultsLink.classList.add("hidden");
     domSectSearchNoResults.classList.add("hidden");
     domSectInfo.classList.add("hidden");
     domHdrName.classList.add("hidden");
@@ -3273,14 +3283,14 @@ var zigAnalysis;
     let oldHash = location.hash;
     let parts = oldHash.split("?");
     let newPart2 = domSearch.value === "" ? "" : "?" + domSearch.value;
-    location.hash =
-      parts.length === 1 ? oldHash + newPart2 : parts[0] + newPart2;
+    location.replace(parts.length === 1 ? oldHash + newPart2 : parts[0] + newPart2);
   }
   function getSearchTerms() {
     let list = curNavSearch.trim().split(/[ \r\n\t]+/);
     list.sort();
     return list;
   }
+  
   function renderSearch() {
     let matchedItems = [];
     let ignoreCase = curNavSearch.toLowerCase() === curNavSearch;
@@ -3346,28 +3356,37 @@ var zigAnalysis;
     }
 
     if (matchedItems.length !== 0) {
-      resizeDomList(
-        domListSearchResults,
-        matchedItems.length,
-        '<li><a href="#"></a></li>'
-      );
-
       matchedItems.sort(function (a, b) {
         let cmp = operatorCompare(b.points, a.points);
         if (cmp != 0) return cmp;
         return operatorCompare(a.decl.name, b.decl.name);
       });
 
+
+      var searchTrimmed = false
+      var searchTrimResultsMaxItems = 200
+      if (searchTrimResults && matchedItems.length > searchTrimResultsMaxItems) {
+          matchedItems = matchedItems.slice(0, searchTrimResultsMaxItems)
+          searchTrimmed = true
+      }
+
+      // Build up the list of search results
+      let matchedItemsHTML = "";
+
       for (let i = 0; i < matchedItems.length; i += 1) {
-        let liDom = domListSearchResults.children[i];
-        let aDom = liDom.children[0];
-        let match = matchedItems[i];
-        let lastPkgName = match.path.pkgNames[match.path.pkgNames.length - 1];
-        aDom.textContent = lastPkgName + "." + match.path.declNames.join(".");
-        aDom.setAttribute(
-          "href",
-          navLink(match.path.pkgNames, match.path.declNames)
-        );
+        const match = matchedItems[i];
+        const lastPkgName = match.path.pkgNames[match.path.pkgNames.length - 1];
+
+        const text = lastPkgName + "." + match.path.declNames.join(".");
+        const href = navLink(match.path.pkgNames, match.path.declNames);
+
+        matchedItemsHTML += "<li><a href=\""+ href +"\">"+ text + "</a></li>";
+      }
+
+      // Replace the search results using our newly constructed HTML string
+      domListSearchResults.innerHTML = matchedItemsHTML;
+      if (searchTrimmed) {
+          domSectSearchAllResultsLink.classList.remove("hidden");
       }
       renderSearchCursor();
 

src/Sema.zig

@@ -19764,6 +19764,8 @@ fn validateRunTimeType(
     };
 }
 
+const TypeSet = std.HashMapUnmanaged(Type, void, Type.HashContext64, std.hash_map.default_max_load_percentage);
+
 fn explainWhyTypeIsComptime(
     sema: *Sema,
     block: *Block,
@@ -19771,6 +19773,22 @@ fn explainWhyTypeIsComptime(
     msg: *Module.ErrorMsg,
     src_loc: Module.SrcLoc,
     ty: Type,
+) CompileError!void {
+    var type_set = TypeSet{};
+    defer type_set.deinit(sema.gpa);
+
+    try sema.resolveTypeFully(block, src, ty);
+    return sema.explainWhyTypeIsComptimeInner(block, src, msg, src_loc, ty, &type_set);
+}
+
+fn explainWhyTypeIsComptimeInner(
+    sema: *Sema,
+    block: *Block,
+    src: LazySrcLoc,
+    msg: *Module.ErrorMsg,
+    src_loc: Module.SrcLoc,
+    ty: Type,
+    type_set: *TypeSet,
 ) CompileError!void {
     const mod = sema.mod;
     switch (ty.zigTypeTag()) {
@@ -19808,7 +19826,7 @@ fn explainWhyTypeIsComptime(
         },
 
         .Array, .Vector => {
-            try sema.explainWhyTypeIsComptime(block, src, msg, src_loc, ty.elemType());
+            try sema.explainWhyTypeIsComptimeInner(block, src, msg, src_loc, ty.elemType(), type_set);
         },
         .Pointer => {
             const elem_ty = ty.elemType2();
@@ -19826,18 +19844,20 @@ fn explainWhyTypeIsComptime(
                 }
                 return;
             }
-            try sema.explainWhyTypeIsComptime(block, src, msg, src_loc, ty.elemType());
+            try sema.explainWhyTypeIsComptimeInner(block, src, msg, src_loc, ty.elemType(), type_set);
         },
 
         .Optional => {
             var buf: Type.Payload.ElemType = undefined;
-            try sema.explainWhyTypeIsComptime(block, src, msg, src_loc, ty.optionalChild(&buf));
+            try sema.explainWhyTypeIsComptimeInner(block, src, msg, src_loc, ty.optionalChild(&buf), type_set);
         },
         .ErrorUnion => {
-            try sema.explainWhyTypeIsComptime(block, src, msg, src_loc, ty.errorUnionPayload());
+            try sema.explainWhyTypeIsComptimeInner(block, src, msg, src_loc, ty.errorUnionPayload(), type_set);
         },
 
         .Struct => {
+            if ((try type_set.getOrPutContext(sema.gpa, ty, .{ .mod = mod })).found_existing) return;
+
             if (ty.castTag(.@"struct")) |payload| {
                 const struct_obj = payload.data;
                 for (struct_obj.fields.values()) |field, i| {
@@ -19845,9 +19865,10 @@ fn explainWhyTypeIsComptime(
                         .index = i,
                         .range = .type,
                     });
+
                     if (try sema.typeRequiresComptime(block, src, field.ty)) {
                         try mod.errNoteNonLazy(field_src_loc, msg, "struct requires comptime because of this field", .{});
-                        try sema.explainWhyTypeIsComptime(block, src, msg, field_src_loc, field.ty);
+                        try sema.explainWhyTypeIsComptimeInner(block, src, msg, field_src_loc, field.ty, type_set);
                     }
                 }
             }
@@ -19855,6 +19876,8 @@ fn explainWhyTypeIsComptime(
         },
 
         .Union => {
+            if ((try type_set.getOrPutContext(sema.gpa, ty, .{ .mod = mod })).found_existing) return;
+
             if (ty.cast(Type.Payload.Union)) |payload| {
                 const union_obj = payload.data;
                 for (union_obj.fields.values()) |field, i| {
@@ -19862,9 +19885,10 @@ fn explainWhyTypeIsComptime(
                         .index = i,
                         .range = .type,
                     });
+
                     if (try sema.typeRequiresComptime(block, src, field.ty)) {
                         try mod.errNoteNonLazy(field_src_loc, msg, "union requires comptime because of this field", .{});
-                        try sema.explainWhyTypeIsComptime(block, src, msg, field_src_loc, field.ty);
+                        try sema.explainWhyTypeIsComptimeInner(block, src, msg, field_src_loc, field.ty, type_set);
                     }
                 }
             }

test/cases/compile_errors/AstGen_comptime_known_struct_is_resolved_before_error.zig

@@ -0,0 +1,19 @@
+const S1 = struct {
+    a: S2,
+};
+const S2 = struct {
+    b: fn () void,
+};
+pub export fn entry() void {
+    var s: S1 = undefined;
+    _ = s;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :8:12: error: variable of type 'tmp.S1' must be const or comptime
+// :2:8: note: struct requires comptime because of this field
+// :5:8: note: struct requires comptime because of this field
+// :5:8: note: use '*const fn() void' for a function pointer type

test/cases/compile_errors/self_referential_struct_requires_comptime.zig

@@ -0,0 +1,18 @@
+const S = struct {
+    a: fn () void,
+    b: *S,
+};
+pub export fn entry() void {
+    var s: S = undefined;
+    _ = s;
+}
+
+
+// error
+// backend=stage2
+// target=native
+//
+// :6:12: error: variable of type 'tmp.S' must be const or comptime
+// :2:8: note: struct requires comptime because of this field
+// :2:8: note: use '*const fn() void' for a function pointer type
+// :3:8: note: struct requires comptime because of this field

test/cases/compile_errors/self_referential_union_requires_comptime.zig

@@ -0,0 +1,17 @@
+const U = union {
+    a: fn () void,
+    b: *U,
+};
+pub export fn entry() void {
+    var u: U = undefined;
+    _ = u;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :6:12: error: variable of type 'tmp.U' must be const or comptime
+// :2:8: note: union requires comptime because of this field
+// :2:8: note: use '*const fn() void' for a function pointer type
+// :3:8: note: union requires comptime because of this field