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src/share/vm/prims/methodHandles.hpp

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  44   // JVM support for MethodHandle, MethodType, and related types
  45   // in java.lang.invoke and sun.invoke.
  46   // See also  javaClasses for layouts java_lang_invoke_Method{Handle,Type,Type::Form}.
  47  public:
  48  public:
  49   static bool enabled()                         { return _enabled; }
  50   static void set_enabled(bool z);
  51 
  52  private:
  53   static bool _enabled;
  54 
  55   // Adapters.
  56   static MethodHandlesAdapterBlob* _adapter_code;
  57 
  58   // utility functions for reifying names and types
  59   static oop field_name_or_null(Symbol* s);
  60   static oop field_signature_type_or_null(Symbol* s);
  61 
  62  public:
  63   // working with member names
  64   static Handle resolve_MemberName(Handle mname, KlassHandle caller, TRAPS); // compute vmtarget/vmindex from name/type
  65   static void expand_MemberName(Handle mname, int suppress, TRAPS);  // expand defc/name/type if missing
  66   static Handle new_MemberName(TRAPS);  // must be followed by init_MemberName
  67   static oop init_MemberName(Handle mname_h, Handle target_h); // compute vmtarget/vmindex from target
  68   static oop init_field_MemberName(Handle mname_h, fieldDescriptor& fd, bool is_setter = false);
  69   static oop init_method_MemberName(Handle mname_h, CallInfo& info);
  70   static int method_ref_kind(Method* m, bool do_dispatch_if_possible = true);
  71   static int find_MemberNames(KlassHandle k, Symbol* name, Symbol* sig,
  72                               int mflags, KlassHandle caller,
  73                               int skip, objArrayHandle results);
  74   // bit values for suppress argument to expand_MemberName:
  75   enum { _suppress_defc = 1, _suppress_name = 2, _suppress_type = 4 };
  76 
  77   // CallSite support
  78   static void add_dependent_nmethod(oop call_site, nmethod* nm);
  79   static void remove_dependent_nmethod(oop call_site, nmethod* nm);
  80 
  81   static void flush_dependent_nmethods(Handle call_site, Handle target);
  82 
  83   // Generate MethodHandles adapters.
  84   static void generate_adapters();
  85 
  86   // Called from MethodHandlesAdapterGenerator.
  87   static address generate_method_handle_interpreter_entry(MacroAssembler* _masm, vmIntrinsics::ID iid);
  88   static void generate_method_handle_dispatch(MacroAssembler* _masm,
  89                                               vmIntrinsics::ID iid,
  90                                               Register receiver_reg,
  91                                               Register member_reg,
  92                                               bool for_compiler_entry);




  44   // JVM support for MethodHandle, MethodType, and related types
  45   // in java.lang.invoke and sun.invoke.
  46   // See also  javaClasses for layouts java_lang_invoke_Method{Handle,Type,Type::Form}.
  47  public:
  48  public:
  49   static bool enabled()                         { return _enabled; }
  50   static void set_enabled(bool z);
  51 
  52  private:
  53   static bool _enabled;
  54 
  55   // Adapters.
  56   static MethodHandlesAdapterBlob* _adapter_code;
  57 
  58   // utility functions for reifying names and types
  59   static oop field_name_or_null(Symbol* s);
  60   static oop field_signature_type_or_null(Symbol* s);
  61 
  62  public:
  63   // working with member names
  64   static Handle resolve_MemberName(Handle mname, Klass* caller, TRAPS); // compute vmtarget/vmindex from name/type
  65   static void expand_MemberName(Handle mname, int suppress, TRAPS);  // expand defc/name/type if missing
  66   static Handle new_MemberName(TRAPS);  // must be followed by init_MemberName
  67   static oop init_MemberName(Handle mname_h, Handle target_h); // compute vmtarget/vmindex from target
  68   static oop init_field_MemberName(Handle mname_h, fieldDescriptor& fd, bool is_setter = false);
  69   static oop init_method_MemberName(Handle mname_h, CallInfo& info);
  70   static int method_ref_kind(Method* m, bool do_dispatch_if_possible = true);
  71   static int find_MemberNames(Klass* k, Symbol* name, Symbol* sig,
  72                               int mflags, Klass* caller,
  73                               int skip, objArrayHandle results);
  74   // bit values for suppress argument to expand_MemberName:
  75   enum { _suppress_defc = 1, _suppress_name = 2, _suppress_type = 4 };
  76 
  77   // CallSite support
  78   static void add_dependent_nmethod(oop call_site, nmethod* nm);
  79   static void remove_dependent_nmethod(oop call_site, nmethod* nm);
  80 
  81   static void flush_dependent_nmethods(Handle call_site, Handle target);
  82 
  83   // Generate MethodHandles adapters.
  84   static void generate_adapters();
  85 
  86   // Called from MethodHandlesAdapterGenerator.
  87   static address generate_method_handle_interpreter_entry(MacroAssembler* _masm, vmIntrinsics::ID iid);
  88   static void generate_method_handle_dispatch(MacroAssembler* _masm,
  89                                               vmIntrinsics::ID iid,
  90                                               Register receiver_reg,
  91                                               Register member_reg,
  92                                               bool for_compiler_entry);


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