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Side by Side Diff: Source/core/html/parser/HTMLScriptRunner.h

Issue 298863010: Oilpan: have PendingScripts trace their script elements. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Add PendingScript::m_element comment + GC plugin annotation. Created 6 years, 6 months ago
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1 /* 1 /*
2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. 2 * Copyright (C) 2010 Google, Inc. All Rights Reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution. 11 * documentation and/or other materials provided with the distribution.
12 * 12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */ 24 */
25 25
26 #ifndef HTMLScriptRunner_h 26 #ifndef HTMLScriptRunner_h
27 #define HTMLScriptRunner_h 27 #define HTMLScriptRunner_h
28 28
29 #include "core/dom/PendingScript.h" 29 #include "core/dom/PendingScript.h"
30 #include "platform/heap/Handle.h"
30 #include "wtf/Deque.h" 31 #include "wtf/Deque.h"
31 #include "wtf/PassRefPtr.h" 32 #include "wtf/PassRefPtr.h"
32 #include "wtf/text/TextPosition.h" 33 #include "wtf/text/TextPosition.h"
33 34
34 namespace WebCore { 35 namespace WebCore {
35 36
36 class Resource; 37 class Resource;
37 class ScriptResource; 38 class ScriptResource;
38 class Document; 39 class Document;
39 class Element; 40 class Element;
40 class LocalFrame; 41 class LocalFrame;
41 class HTMLScriptRunnerHost; 42 class HTMLScriptRunnerHost;
42 class ScriptSourceCode; 43 class ScriptSourceCode;
43 44
44 class HTMLScriptRunner { 45 class HTMLScriptRunner FINAL {
45 WTF_MAKE_NONCOPYABLE(HTMLScriptRunner); WTF_MAKE_FAST_ALLOCATED; 46 WTF_MAKE_NONCOPYABLE(HTMLScriptRunner); WTF_MAKE_FAST_ALLOCATED;
46 public: 47 public:
47 static PassOwnPtr<HTMLScriptRunner> create(Document* document, HTMLScriptRun nerHost* host) 48 static PassOwnPtr<HTMLScriptRunner> create(Document* document, HTMLScriptRun nerHost* host)
48 { 49 {
49 return adoptPtr(new HTMLScriptRunner(document, host)); 50 return adoptPtr(new HTMLScriptRunner(document, host));
50 } 51 }
51 ~HTMLScriptRunner(); 52 ~HTMLScriptRunner();
52 53
53 void detach(); 54 void detach();
54 55
55 // Processes the passed in script and any pending scripts if possible. 56 // Processes the passed in script and any pending scripts if possible.
56 void execute(PassRefPtr<Element> scriptToProcess, const TextPosition& script StartPosition); 57 void execute(PassRefPtrWillBeRawPtr<Element> scriptToProcess, const TextPosi tion& scriptStartPosition);
57 58
58 void executeScriptsWaitingForLoad(Resource*); 59 void executeScriptsWaitingForLoad(Resource*);
59 bool hasScriptsWaitingForResources() const { return m_hasScriptsWaitingForRe sources; } 60 bool hasScriptsWaitingForResources() const { return m_hasScriptsWaitingForRe sources; }
60 void executeScriptsWaitingForResources(); 61 void executeScriptsWaitingForResources();
61 bool executeScriptsWaitingForParsing(); 62 bool executeScriptsWaitingForParsing();
62 63
63 bool hasParserBlockingScript() const; 64 bool hasParserBlockingScript() const;
64 bool isExecutingScript() const { return !!m_scriptNestingLevel; } 65 bool isExecutingScript() const { return !!m_scriptNestingLevel; }
65 66
67 void trace(Visitor*);
68
66 private: 69 private:
67 HTMLScriptRunner(Document*, HTMLScriptRunnerHost*); 70 HTMLScriptRunner(Document*, HTMLScriptRunnerHost*);
68 71
69 LocalFrame* frame() const; 72 LocalFrame* frame() const;
70 73
71 enum PendingScriptType { 74 enum PendingScriptType {
72 PendingScriptBlockingParser, 75 PendingScriptBlockingParser,
73 PendingScriptDeferred 76 PendingScriptDeferred
74 }; 77 };
75 78
(...skipping 22 matching lines...) Expand all
98 // We only want stylesheet loads to trigger script execution if script 101 // We only want stylesheet loads to trigger script execution if script
99 // execution is currently stopped due to stylesheet loads, otherwise we'd 102 // execution is currently stopped due to stylesheet loads, otherwise we'd
100 // cause nested script execution when parsing <style> tags since </style> 103 // cause nested script execution when parsing <style> tags since </style>
101 // tags can cause Document to call executeScriptsWaitingForResources. 104 // tags can cause Document to call executeScriptsWaitingForResources.
102 bool m_hasScriptsWaitingForResources; 105 bool m_hasScriptsWaitingForResources;
103 }; 106 };
104 107
105 } 108 }
106 109
107 #endif 110 #endif
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