Bug Summary

File:Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/Source/WebCore/rendering/RenderObjectInlines.h
Warning:line 59, column 12
Call argument for 'this' parameter is unchecked and unsafe

Annotated Source Code

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clang -cc1 -cc1 -triple arm64-apple-ios26.2.0-simulator -O3 -Wundef-prefix=TARGET_OS_ -Werror=undef-prefix -Wdeprecated-objc-isa-usage -Werror=deprecated-objc-isa-usage -Werror=implicit-function-declaration -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name UnifiedSource481.cpp -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=osx -analyzer-checker=security.insecureAPI.decodeValueOfObjCType -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer 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/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator26.2.sdk/usr/local/include -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/Release-iphonesimulator/usr/local/include/webrtc -I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator26.2.sdk/usr/local/include/webrtc -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/Release-iphonesimulator/usr/local/include/webm -I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator26.2.sdk/usr/local/include/webm -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/PAL.build/PAL.build/DerivedSources -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/PAL.build/Release-iphonesimulator/PAL.build/DerivedSources -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/Source/WebCore -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/WebCore.build/Release-iphonesimulator/WebCore.build/DerivedSources-normal/arm64 -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/WebCore.build/Release-iphonesimulator/WebCore.build/DerivedSources/arm64 -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/WebCore.build/Release-iphonesimulator/WebCore.build/DerivedSources -F/Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/Release-iphonesimulator -F/Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/Release-iphonesimulator -I/usr/local/include -stdlib=libc++ -internal-isystem /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator26.2.sdk/usr/include/c++/v1 -internal-isystem /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator26.2.sdk/usr/local/include 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-Wno-unused-parameter -Wunused-variable -Wunused-value -Wempty-body -Wuninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wconstant-conversion -Wint-conversion -Wbool-conversion -Wenum-conversion -Wno-float-conversion -Wnon-literal-null-conversion -Wobjc-literal-conversion -Wsign-compare -Wno-shorten-64-to-32 -Wnewline-eof -Wno-c++11-extensions -Wno-implicit-fallthrough -Wdeprecated-declarations -Winvalid-offsetof -Wno-sign-conversion -Winfinite-recursion -Wmove -Wcomma -Wblock-capture-autoreleasing -Wstrict-prototypes -Wrange-loop-analysis -Wno-semicolon-before-method-body -Wall -Wc99-designator -Wconditional-uninitialized -Wextra -Wdeprecated-enum-enum-conversion -Wdeprecated-enum-float-conversion -Wenum-float-conversion -Wfinal-dtor-non-final-class -Wformat=2 -Wmisleading-indentation -Wpointer-to-int-cast -Wreorder-init-list -Wundef -Wunused-but-set-variable -Wvla -Werror=unguarded-availability -Wno-elaborated-enum-base -Wcast-qual 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alpha.webkit.ForwardDeclChecker,alpha.webkit.MemoryUnsafeCastChecker,alpha.webkit.NoDeleteChecker,alpha.webkit.NoUncheckedPtrMemberChecker,alpha.webkit.NoUnretainedMemberChecker,alpha.webkit.RetainPtrCtorAdoptChecker,alpha.webkit.UncheckedCallArgsChecker,alpha.webkit.UncheckedLocalVarsChecker,alpha.webkit.UncountedCallArgsChecker,alpha.webkit.UncountedLocalVarsChecker,alpha.webkit.UnretainedCallArgsChecker,alpha.webkit.UnretainedLambdaCapturesChecker,alpha.webkit.UnretainedLocalVarsChecker,webkit.NoUncountedMemberChecker,webkit.RefCntblBaseVirtualDtor,webkit.UncountedLambdaCapturesChecker -analyzer-config max-nodes=10000000 -analyzer-config verbose-report-filename=true -fdwarf2-cfi-asm -o /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/scan-build-output/StaticAnalyzer/WebCore/WebCore/normal/arm64/UnifiedSource481.plist -x c++ /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/Release-iphonesimulator/DerivedSources/WebCore/unified-sources/UnifiedSource481.cpp
1/**
2 * Copyright (C) 2023 Apple Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#pragma once
21
22#include <WebCore/DocumentPage.h>
23#include <WebCore/FloatQuad.h>
24#include <WebCore/FrameDestructionObserverInlines.h>
25#include <WebCore/LocalFrameInlines.h>
26#include <WebCore/LocalFrameView.h>
27#include <WebCore/RenderElement.h>
28#include <WebCore/RenderIFrame.h>
29#include <WebCore/RenderObject.h>
30#include <WebCore/RenderObjectDocument.h>
31#include <WebCore/RenderObjectNode.h>
32#include <WebCore/RenderObjectStyle.h>
33#include <WebCore/RenderReplaced.h>
34#include <WebCore/RenderStyle+GettersInlines.h>
35#include <WebCore/RenderView.h>
36#include <WebCore/VisibleRectContext.h>
37
38namespace WebCore {
39
40inline bool RenderObject::hasTransformOrPerspective() const
41{
42 return hasTransformRelatedProperty() && (isTransformed() || !style().perspective().isNone());
43}
44
45inline bool RenderObject::isAtomicInlineLevelBox() const
46{
47 auto display = style().display();
48 return display.isInlineType()
49 && !(display == Style::DisplayType::InlineFlow && !isBlockLevelReplacedOrAtomicInline());
50}
51
52inline bool RenderObject::isTransformed() const
53{
54 return hasTransformRelatedProperty() && (style().affectsTransform() || hasSVGTransform());
55}
56
57inline LocalFrameViewLayoutContext& RenderObject::layoutContext() const
58{
59 return view().frameView().layoutContext();
Call argument for 'this' parameter is unchecked and unsafe
60}
61
62inline TreeScope& RenderObject::treeScopeForSVGReferences() const
63{
64 return m_node->treeScopeForSVGReferences();
65}
66
67inline CheckedRef<const RenderStyle> RenderObject::firstLineStyle() const
68{
69 if (isRenderText())
70 return protect(parent())->firstLineStyle();
71 return downcast<RenderElement>(*this).firstLineStyle();
72}
73
74inline LocalFrame& RenderObject::frame() const
75{
76 return *document().frame();
77}
78
79inline Page& RenderObject::page() const
80{
81 // The render tree will always be torn down before Frame is disconnected from Page,
82 // so it's safe to assume Frame::page() is non-null as long as there are live RenderObjects.
83 ASSERT(frame().page())((void)0);
84 return *frame().page();
85}
86
87inline FloatQuad RenderObject::localToAbsoluteQuad(const FloatQuad& quad, OptionSet<MapCoordinatesMode> mode, bool* wasFixed) const
88{
89 return localToContainerQuad(quad, nullptr, mode, wasFixed);
90}
91
92inline void RenderObject::setNeedsLayout(MarkingBehavior markParents)
93{
94 ASSERT(!isSetNeedsLayoutForbidden())((void)0);
95 if (selfNeedsLayout())
96 return;
97 m_stateBitfields.setFlag(StateFlag::NeedsLayout);
98 if (markParents == MarkContainingBlockChain)
99 scheduleLayout(CheckedPtr { markContainingBlocksForLayout() });
100 if (hasLayer())
101 setLayerNeedsFullRepaint();
102}
103
104inline void RenderObject::setNeedsLayoutAndPreferredWidthsUpdate()
105{
106 setNeedsLayout();
107 setNeedsPreferredWidthsUpdate();
108}
109
110inline bool RenderObject::isNonReplacedAtomicInlineLevelBox() const
111{
112 // FIXME: Check if iframe should really behave like non-replaced here.
113 return (is<RenderIFrame>(*this) && isInline()) || (!is<RenderReplaced>(*this) && isAtomicInlineLevelBox());
114}
115
116inline auto RenderObject::visibleRectContextForRepaint() -> VisibleRectContext
117{
118 return {
119 .hasPositionFixedDescendant = false,
120 .dirtyRectIsFlipped = false,
121 .descendantNeedsEnclosingIntRect = false,
122 .options = {
123 VisibleRectContext::Option::ApplyContainerClip,
124 VisibleRectContext::Option::ApplyCompositedContainerScrolls
125 },
126 .scrollMargin = { },
127 };
128}
129
130inline auto RenderObject::visibleRectContextForSpatialNavigation() -> VisibleRectContext
131{
132 return {
133 .hasPositionFixedDescendant = false,
134 .dirtyRectIsFlipped = false,
135 .descendantNeedsEnclosingIntRect = false,
136 .options = {
137 VisibleRectContext::Option::ApplyContainerClip,
138 VisibleRectContext::Option::ApplyCompositedContainerScrolls,
139 VisibleRectContext::Option::ApplyCompositedClips
140 },
141 .scrollMargin = { },
142 };
143}
144
145inline auto RenderObject::visibleRectContextForRenderTreeAsText() -> VisibleRectContext
146{
147 return {
148 .hasPositionFixedDescendant = false,
149 .dirtyRectIsFlipped = false,
150 .descendantNeedsEnclosingIntRect = false,
151 .options = {
152 VisibleRectContext::Option::ApplyContainerClip,
153 VisibleRectContext::Option::ApplyCompositedContainerScrolls,
154 VisibleRectContext::Option::ApplyCompositedClips,
155 VisibleRectContext::Option::CalculateAccurateRepaintRect
156 },
157 .scrollMargin = { },
158 };
159}
160
161inline LayoutRect RenderObject::absoluteClippedOverflowRectForRepaint() const
162{
163 return clippedOverflowRect(nullptr, visibleRectContextForRepaint());
164}
165
166inline LayoutRect RenderObject::absoluteClippedOverflowRectForSpatialNavigation() const
167{
168 return clippedOverflowRect(nullptr, visibleRectContextForSpatialNavigation());
169}
170
171inline LayoutRect RenderObject::absoluteClippedOverflowRectForRenderTreeAsText() const
172{
173 return clippedOverflowRect(nullptr, visibleRectContextForRenderTreeAsText());
174}
175
176inline LayoutRect RenderObject::clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const
177{
178 return clippedOverflowRect(repaintContainer, visibleRectContextForRepaint());
179}
180
181inline LayoutRect RenderObject::computeRectForRepaint(const LayoutRect& rect, const RenderLayerModelObject* repaintContainer) const
182{
183 return computeRects({ rect }, repaintContainer, visibleRectContextForRepaint()).clippedOverflowRect;
184}
185
186} // namespace WebCore