ast.appendToken(TokenBuilder.newLBrack());
LinkedListTree subscriptExpr = ast(subscript);
ASTBuilder.assertNoParent("subscript expression", subscriptExpr);
ast.addChildWithTokens(subscriptExpr);
ast.appendToken(TokenBuilder.newRBrack());
ASTASArrayAccessExpression result = new ASTASArrayAccessExpression(ast);
return result;
}