Merge commit '6e92d2345e8231a44556ce7d416451f5f3e6c398' as 'engine262'

2026-08-19 00:31:06 +00:00 · 2026-03-27 10:07:29 +05:30
parent 8f26db5a1f 6e92d2345e
commit b42a69d9f8
433 changed files with 90478 additions and 0 deletions
@@ -0,0 +1,82 @@
+import { isArray } from '../helpers.mts';
+import type { ParseNode } from '../parser/ParseNode.mts';
+import { TopLevelLexicallyScopedDeclarations, DeclarationPart } from './all.mts';
+
+export function LexicallyScopedDeclarations(node: ParseNode | readonly ParseNode[]): (ParseNode.Declaration | ParseNode.ExportDeclaration)[] {
+  if (isArray(node)) {
+    const declarations = [];
+    for (const item of node) {
+      declarations.push(...LexicallyScopedDeclarations(item));
+    }
+    return declarations;
+  }
+  switch (node.type) {
+    case 'LabelledStatement':
+      return LexicallyScopedDeclarations(node.LabelledItem);
+    case 'Script':
+      if (node.ScriptBody) {
+        return LexicallyScopedDeclarations(node.ScriptBody);
+      }
+      return [];
+    case 'ScriptBody':
+      return TopLevelLexicallyScopedDeclarations(node.StatementList);
+    case 'Module':
+      if (node.ModuleBody) {
+        return LexicallyScopedDeclarations(node.ModuleBody);
+      }
+      return [];
+    case 'ModuleBody':
+      return LexicallyScopedDeclarations(node.ModuleItemList);
+    case 'FunctionBody':
+    case 'GeneratorBody':
+    case 'AsyncBody':
+    case 'AsyncGeneratorBody':
+      return TopLevelLexicallyScopedDeclarations(node.FunctionStatementList);
+    case 'ClassStaticBlockBody':
+      return TopLevelLexicallyScopedDeclarations(node.ClassStaticBlockStatementList);
+    case 'ImportDeclaration':
+      return [];
+    case 'ClassDeclaration':
+    case 'LexicalDeclaration':
+    case 'FunctionDeclaration':
+    case 'GeneratorDeclaration':
+    case 'AsyncFunctionDeclaration':
+    case 'AsyncGeneratorDeclaration':
+      return [DeclarationPart(node)];
+    case 'CaseBlock': {
+      const names = [];
+      if (node.CaseClauses_a) {
+        names.push(...LexicallyScopedDeclarations(node.CaseClauses_a));
+      }
+      if (node.DefaultClause) {
+        names.push(...LexicallyScopedDeclarations(node.DefaultClause));
+      }
+      if (node.CaseClauses_b) {
+        names.push(...LexicallyScopedDeclarations(node.CaseClauses_b));
+      }
+      return names;
+    }
+    case 'CaseClause':
+    case 'DefaultClause':
+      if (node.StatementList) {
+        return LexicallyScopedDeclarations(node.StatementList);
+      }
+      return [];
+    case 'ExportDeclaration':
+      if (node.Declaration) {
+        return [DeclarationPart(node.Declaration)];
+      }
+      if (node.HoistableDeclaration) {
+        return [DeclarationPart(node.HoistableDeclaration)];
+      }
+      if (node.ClassDeclaration) {
+        return [node.ClassDeclaration];
+      }
+      if (node.AssignmentExpression) {
+        return [node];
+      }
+      return [];
+    default:
+      return [];
+  }
+}