Stop depending on namespace fallback for functions and constants

HHAST did these changes.

.hhconfig

@@ -1 +1,4 @@
 assume_php=false
+enable_experimental_tc_features = no_fallback_in_namespaces
+safe_array = true
+safe_vector_array = true

src/_Private/get_html_entity_table.php

@@ -21,7 +21,7 @@ function get_html_entity_table(): dict<string, string> {
     "Expected %s to exist",
     $file,
   );
-  $data = \json_decode(\file_get_contents($file), JSON_FB_HACK_ARRAYS);
+  $data = \json_decode(\file_get_contents($file), \JSON_FB_HACK_ARRAYS);
 
   return Dict\map($data, $x ==> $x['characters']);
 }

src/inlines/Emphasis.php

@@ -430,7 +430,7 @@ private static function debugDump(
     int $position,
     vec<Stack\Node> $stack,
   ): void {
-    printf("-------------------- %d\n", $position);
+    \printf("-------------------- %d\n", $position);
     print(
       Vec\map_with_key(
         $stack,

src/inlines/_Private/EmphasisStack.php

@@ -38,7 +38,7 @@ public function toInlines(Context $ctx): vec<Inline> {
 
   <<__Override>>
   public function debugDump(string $_markdown): string {
-    return '(text '.var_export($this->text, true).')';
+    return '(text '.\var_export($this->text, true).')';
   }
 }
 
@@ -69,7 +69,7 @@ public function debugDump(string $_markdown): string {
     return '(delim '.
       (($this->flags & Inlines\Emphasis::IS_START) ? 'open' : '').
       (($this->flags & Inlines\Emphasis::IS_END) ? 'close' : '').
-      ' '.var_export($this->getText(), true).')';
+      ' '.\var_export($this->getText(), true).')';
   }
 }
 
@@ -86,7 +86,7 @@ public function toInlines(Context $_): vec<Inline> {
 
   <<__Override>>
   public function debugDump(string $_markdown): string {
-    return '(inline '.get_class($this->content).')';
+    return '(inline '.\get_class($this->content).')';
   }
 }
 
@@ -125,7 +125,7 @@ public function debugDump(string $markdown): string {
     return '('.
       ($node->isStrong() ? 'strong' : 'em')
       .' '.
-      var_export(
+      \var_export(
         Str\slice($markdown, $this->startOffset, $this->getLength()),
         true,
       )

src/inlines/_Private/parse_with_blacklist.php

@@ -43,7 +43,7 @@ function parse_with_blacklist (
     invariant(
       $new_offset > $offset,
       "Failed to consume any data with %s",
-      get_class($inline),
+      \get_class($inline),
     );
     $offset = $new_offset;
     $out[] = $inline;

src/inlines/parse.php

@@ -30,7 +30,7 @@ function parse(
     'Offset: %d; Length: %d; Final class: %s',
     $offset,
     $length,
-    get_class(C\lastx($parsed)),
+    \get_class(C\lastx($parsed)),
   );
   return $parsed;
 }

src/render/HTMLRenderer.php

@@ -109,7 +109,7 @@ protected function renderHeading(Blocks\Heading $node): string {
     $level = $node->getLevel();
     return $node->getHeading()
       |> $this->renderNodes($$)
-      |> sprintf("<h%d>%s</h%d>\n", $level, $$, $level);
+      |> \sprintf("<h%d>%s</h%d>\n", $level, $$, $level);
   }
 
   <<__Override>>
@@ -210,7 +210,7 @@ protected function renderListOfItems(Blocks\ListOfItems $node): string {
       $start ='<ol>';
       $end = '</ol>';
     } else {
-      $start = sprintf('<ol start="%d">', $start);
+      $start = \sprintf('<ol start="%d">', $start);
       $end = '</ol>';
     }
     return $node->getItems()

src/render/RenderContext.php

@@ -39,10 +39,10 @@ public function enableNamedExtension(string $extension): this {
     $this->enabledExtensions = $this->extensions
       |> Vec\filter(
         $$,
-        $obj ==> Str\ends_with_ci(get_class($obj), "\\".$extension.'Extension'),
+        $obj ==> Str\ends_with_ci(\get_class($obj), "\\".$extension.'Extension'),
       )
       |> Vec\concat($$, $this->enabledExtensions)
-      |> Vec\unique_by($$, $x ==> get_class($x));
+      |> Vec\unique_by($$, $x ==> \get_class($x));
     return $this;
   }
 

src/render/Renderer.php

@@ -175,7 +175,7 @@ protected function renderResolvedNode(
 
     invariant_violation(
       "Unhandled node type: %s",
-      get_class($node),
+      \get_class($node),
     );
   }
 }

src/unparsed-blocks/ContainerBlock.php

@@ -37,7 +37,7 @@ protected static function consumeChildren(
       invariant(
         $pre_count > $lines->getCount(),
         'consuming failed to reduce line count with class "%s" on line "%s"',
-        get_class($child),
+        \get_class($child),
         $lines->getFirstLine(),
       );
     }

src/unparsed-blocks/FencedBlock.php

@@ -39,7 +39,7 @@ public static function consume(
     $matched = vec[$first];
 
     if (
-      is_a(static::class, HTMLBlock::class, true)
+      \is_a(static::class, HTMLBlock::class, true)
       && \preg_match($end, $first) === 1
     ) {
       // Keyed specifically to HTMLBlock as the behavior for the rest of the

src/unparsed-blocks/LinkReferenceDefinition.php

@@ -46,7 +46,7 @@ public function getKey(): string {
   public static function normalizeKey(string $in): string {
     return $in
       |> Str\trim($$)
-      |> \mb_convert_case($$, MB_CASE_LOWER, "UTF-8")
+      |> \mb_convert_case($$, \MB_CASE_LOWER, "UTF-8")
       |> \preg_replace('/\s+/', ' ', $$);
   }
 

src/unparsed-blocks/ListItem.php

@@ -55,7 +55,7 @@ public static function consume(
     invariant(
       \is_int($max_indent),
       'expected to get a maximum indentation from context, got a %s',
-      gettype($max_indent),
+      \gettype($max_indent),
     );
 
     // Consume leading whitespace