Mercurial > hg > truffle
diff src/share/vm/oops/methodOop.hpp @ 6213:8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
Summary: Change constMethodOop::_exception_table to optionally inlined u2 table.
Reviewed-by: bdelsart, coleenp, kamg
author | jiangli |
---|---|
date | Tue, 26 Jun 2012 19:08:44 -0400 |
parents | eba1d5bce9e8 |
children | e74da3c2b827 |
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--- a/src/share/vm/oops/methodOop.hpp Mon Jun 25 15:34:06 2012 -0400 +++ b/src/share/vm/oops/methodOop.hpp Tue Jun 26 19:08:44 2012 -0400 @@ -282,12 +282,12 @@ } // exception handler table - typeArrayOop exception_table() const - { return constMethod()->exception_table(); } - void set_exception_table(typeArrayOop e) - { constMethod()->set_exception_table(e); } bool has_exception_handler() const { return constMethod()->has_exception_handler(); } + int exception_table_length() const + { return constMethod()->exception_table_length(); } + ExceptionTableElement* exception_table_start() const + { return constMethod()->exception_table_start(); } // Finds the first entry point bci of an exception handler for an // exception of klass ex_klass thrown at throw_bci. A value of NULL @@ -835,4 +835,66 @@ void clear(methodOop method); }; +// Utility class for access exception handlers +class ExceptionTable : public StackObj { + private: + ExceptionTableElement* _table; + u2 _length; + + public: + ExceptionTable(methodOop m) { + if (m->has_exception_handler()) { + _table = m->exception_table_start(); + _length = m->exception_table_length(); + } else { + _table = NULL; + _length = 0; + } + } + + int length() const { + return _length; + } + + u2 start_pc(int idx) const { + assert(idx < _length, "out of bounds"); + return _table[idx].start_pc; + } + + void set_start_pc(int idx, u2 value) { + assert(idx < _length, "out of bounds"); + _table[idx].start_pc = value; + } + + u2 end_pc(int idx) const { + assert(idx < _length, "out of bounds"); + return _table[idx].end_pc; + } + + void set_end_pc(int idx, u2 value) { + assert(idx < _length, "out of bounds"); + _table[idx].end_pc = value; + } + + u2 handler_pc(int idx) const { + assert(idx < _length, "out of bounds"); + return _table[idx].handler_pc; + } + + void set_handler_pc(int idx, u2 value) { + assert(idx < _length, "out of bounds"); + _table[idx].handler_pc = value; + } + + u2 catch_type_index(int idx) const { + assert(idx < _length, "out of bounds"); + return _table[idx].catch_type_index; + } + + void set_catch_type_index(int idx, u2 value) { + assert(idx < _length, "out of bounds"); + _table[idx].catch_type_index = value; + } +}; + #endif // SHARE_VM_OOPS_METHODOOP_HPP