From patchwork Thu Apr 23 23:00:38 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 26538 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 36B37BDCB5 for ; Thu, 23 Apr 2026 23:01:34 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id A9B6662FB5; Fri, 24 Apr 2026 01:01:33 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="u7leya8D"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 9666462F86 for ; Fri, 24 Apr 2026 01:01:23 +0200 (CEST) Received: from killaraus.ideasonboard.com (2001-14ba-703d-e500--2a1.rev.dnainternet.fi [IPv6:2001:14ba:703d:e500::2a1]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 11B2CC75 for ; Fri, 24 Apr 2026 00:59:44 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1776985184; bh=271LkudYLoFrF9u1x3Js8ZS6P6JtAxU6W1j3htfU7r8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=u7leya8DYkqDz3nHNWCwqg2+LWMBet7fVFHnoPjqCIi7y6CXAxRMv7kz7wit528A6 Rv/LZupmOFbiGoQOCG5NjBrsySaxNbDAnpZYewPOVEhW9EybsYOTIKwv3H7fQhO0mi LSWCzCWW/ykBEaoIF71/I1UG5s1e3SZz8cR7k54c= From: Laurent Pinchart To: libcamera-devel@lists.libcamera.org Subject: [PATCH v3 16/37] libcamera: value_node: Add mutable adapters Date: Fri, 24 Apr 2026 02:00:38 +0300 Message-ID: <20260423230059.3180987-17-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260423230059.3180987-1-laurent.pinchart@ideasonboard.com> References: <20260423230059.3180987-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" The ValueNode class was initially designed to store read-only property trees. It is useful to also provide mutable access. Add non-const adapters and iterators and adapters. This allows obtaining a mutable ValueNode instance when traversing a tree. Signed-off-by: Laurent Pinchart Reviewed-by: Barnabás Pőcze Reviewed-by: Isaac Scott --- include/libcamera/internal/value_node.h | 32 ++++++++++++++++++------- src/libcamera/value_node.cpp | 10 ++++++++ 2 files changed, 34 insertions(+), 8 deletions(-) diff --git a/include/libcamera/internal/value_node.h b/include/libcamera/internal/value_node.h index 16e6660e8329..b51d2f4b610b 100644 --- a/include/libcamera/internal/value_node.h +++ b/include/libcamera/internal/value_node.h @@ -143,17 +143,31 @@ public: } }; - class DictAdapter : public Adapter, - const ValueContainer> + class DictAdapter : public Adapter, + ValueContainer> { public: using key_type = std::string; }; - class ListAdapter : public Adapter, - const ValueContainer> + class ListAdapter : public Adapter, + ValueContainer> + { + }; + + class ConstDictAdapter : public Adapter, + const ValueContainer> + { + public: + using key_type = std::string; + }; + + class ConstListAdapter : public Adapter, + const ValueContainer> { }; #endif /* __DOXYGEN__ */ @@ -211,8 +225,10 @@ public: .set(*this, std::forward(value)); } - DictAdapter asDict() const { return DictAdapter{ list_ }; } - ListAdapter asList() const { return ListAdapter{ list_ }; } + DictAdapter asDict() { return DictAdapter{ list_ }; } + ListAdapter asList() { return ListAdapter{ list_ }; } + ConstDictAdapter asDict() const { return ConstDictAdapter{ list_ }; } + ConstListAdapter asList() const { return ConstListAdapter{ list_ }; } const ValueNode &operator[](std::size_t index) const; diff --git a/src/libcamera/value_node.cpp b/src/libcamera/value_node.cpp index 324419f02bb6..e2dd455d3f1e 100644 --- a/src/libcamera/value_node.cpp +++ b/src/libcamera/value_node.cpp @@ -335,6 +335,11 @@ template struct ValueNode::Accessor>; template struct ValueNode::Accessor>; #endif /* __DOXYGEN__ */ +/** + * \fn ValueNode::asDict() + * \copydoc ValueNode::asDict() const + */ + /** * \fn ValueNode::asDict() const * \brief Wrap a dictionary ValueNode in an adapter that exposes iterators @@ -355,6 +360,11 @@ template struct ValueNode::Accessor>; * \return An adapter of unspecified type compatible with range-based for loops */ +/** + * \fn ValueNode::asList() + * \copydoc ValueNode::asList() const + */ + /** * \fn ValueNode::asList() const * \brief Wrap a list ValueNode in an adapter that exposes iterators