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26 #ifndef DFABytecodeCompiler_h
27 #define DFABytecodeCompiler_h
29 #if ENABLE(CONTENT_EXTENSIONS)
31 #include "DFABytecode.h"
32 #include <wtf/Vector.h>
36 namespace ContentExtensions {
41 class DFABytecodeCompiler {
43 DFABytecodeCompiler(const DFA& dfa, Vector<DFABytecode>& bytecode)
44 : m_bytecode(bytecode)
53 Range(uint8_t min, uint8_t max, unsigned destination, bool caseSensitive)
56 , destination(destination)
57 , caseSensitive(caseSensitive)
65 void compileNode(unsigned);
66 void compileNodeTransitions(const DFANode&);
67 void compileCheckForRange(const Range&);
69 void emitAppendAction(unsigned);
70 void emitTestFlagsAndAppendAction(uint16_t flags, unsigned);
71 void emitJump(unsigned destinationNodeIndex);
72 void emitCheckValue(uint8_t value, unsigned destinationNodeIndex, bool caseSensitive);
73 void emitCheckValueRange(uint8_t lowValue, uint8_t highValue, unsigned destinationNodeIndex, bool caseSensitive);
76 Vector<DFABytecode>& m_bytecode;
79 Vector<unsigned> m_nodeStartOffsets;
81 // The first value is the index in the bytecode buffer where the jump is to be written.
82 // The second value is the index of the node to jump to.
83 Vector<std::pair<unsigned, unsigned>> m_linkRecords;
86 } // namespace ContentExtensions
88 } // namespace WebCore
90 #endif // ENABLE(CONTENT_EXTENSIONS)
92 #endif // DFABytecodeCompiler_h