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author | Ulf Hermann <ulf.hermann@qt.io> | 2019-03-22 14:47:51 +0100 |
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committer | Ulf Hermann <ulf.hermann@qt.io> | 2019-03-22 14:57:04 +0100 |
commit | a768780f36a9913d4371c4a61706fc90bbba18c5 (patch) | |
tree | 141606d8b87fcb932172444369fa0df5cf1acf9a /src/qml/parser/qqmljsastvisitor_p.h | |
parent | b7eebec9597b38fed52710bc1dcc166d456a415d (diff) | |
parent | 56b3232a7d35fe2b856d1d87a7e1c59906b46681 (diff) |
Merge remote-tracking branch 'origin/5.13' into HEAD
Conflicts:
src/qml/compiler/qv4compileddata_p.h
src/qml/jit/qv4baselinejit.cpp
src/qml/jit/qv4jithelpers.cpp
src/qml/jsruntime/qv4lookup.cpp
src/qml/jsruntime/qv4runtime.cpp
src/qml/jsruntime/qv4runtimeapi_p.h
src/qml/jsruntime/qv4vme_moth.cpp
src/qml/qml/qqmltypemodule_p.h
Change-Id: If28793e9e08418457a11fc2c5832f03cab2fcc76
Diffstat (limited to 'src/qml/parser/qqmljsastvisitor_p.h')
-rw-r--r-- | src/qml/parser/qqmljsastvisitor_p.h | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/src/qml/parser/qqmljsastvisitor_p.h b/src/qml/parser/qqmljsastvisitor_p.h index c925096de6..9c69f88e0c 100644 --- a/src/qml/parser/qqmljsastvisitor_p.h +++ b/src/qml/parser/qqmljsastvisitor_p.h @@ -61,7 +61,33 @@ namespace QQmlJS { namespace AST { class QML_PARSER_EXPORT Visitor { public: - Visitor(); + class RecursionDepthCheck + { + Q_DISABLE_COPY(RecursionDepthCheck) + public: + RecursionDepthCheck(RecursionDepthCheck &&) = delete; + RecursionDepthCheck &operator=(RecursionDepthCheck &&) = delete; + + RecursionDepthCheck(Visitor *visitor) : m_visitor(visitor) + { + ++(m_visitor->m_recursionDepth); + } + + ~RecursionDepthCheck() + { + --(m_visitor->m_recursionDepth); + } + + bool operator()() const { + return m_visitor->m_recursionDepth < s_recursionLimit; + } + + private: + static const quint16 s_recursionLimit = 4096; + Visitor *m_visitor; + }; + + Visitor(quint16 parentRecursionDepth = 0); virtual ~Visitor(); virtual bool preVisit(Node *) { return true; } @@ -374,6 +400,14 @@ public: virtual bool visit(DebuggerStatement *) { return true; } virtual void endVisit(DebuggerStatement *) {} + + virtual void throwRecursionDepthError() = 0; + + quint16 recursionDepth() const { return m_recursionDepth; } + +protected: + quint16 m_recursionDepth = 0; + friend class RecursionDepthCheck; }; } } // namespace AST |