32 #include "runtime/interfaceSupport.hpp"
  33 
  34 class MacroAssembler;
  35 class Label;
  36 
  37 class MethodHandles: AllStatic {
  38   // JVM support for MethodHandle, MethodType, and related types
  39   // in java.lang.invoke and sun.invoke.
  40   // See also  javaClasses for layouts java_lang_invoke_Method{Handle,Type,Type::Form}.
  41  public:
  42  public:
  43   static bool enabled()                         { return _enabled; }
  44   static void set_enabled(bool z);
  45 
  46  private:
  47   static bool _enabled;
  48 
  49   // Adapters.
  50   static MethodHandlesAdapterBlob* _adapter_code;
  51 




  52  public:
  53   // working with member names
  54   static Handle resolve_MemberName(Handle mname, TRAPS); // compute vmtarget/vmindex from name/type
  55   static void expand_MemberName(Handle mname, int suppress, TRAPS);  // expand defc/name/type if missing
  56   static Handle new_MemberName(TRAPS);  // must be followed by init_MemberName
  57   static oop init_MemberName(Handle mname_h, Handle target_h); // compute vmtarget/vmindex from target
  58   static oop init_method_MemberName(Handle mname_h, Method* m, bool do_dispatch,
  59                                     KlassHandle receiver_limit_h);
  60   static oop init_field_MemberName(Handle mname_h, KlassHandle field_holder_h,
  61                                    AccessFlags mods, oop type, oop name,
  62                                    intptr_t offset, bool is_setter = false);
  63   static Handle init_method_MemberName(Handle mname_h, CallInfo& info, TRAPS);
  64   static Handle init_field_MemberName(Handle mname_h, FieldAccessInfo& info, TRAPS);
  65   static int method_ref_kind(Method* m, bool do_dispatch_if_possible = true);
  66   static int find_MemberNames(KlassHandle k, Symbol* name, Symbol* sig,
  67                               int mflags, KlassHandle caller,
  68                               int skip, objArrayHandle results);
  69   // bit values for suppress argument to expand_MemberName:
  70   enum { _suppress_defc = 1, _suppress_name = 2, _suppress_type = 4 };
  71 
  72   // Generate MethodHandles adapters.
  73                               static void generate_adapters();
  74 
  75   // Called from MethodHandlesAdapterGenerator.
  76   static address generate_method_handle_interpreter_entry(MacroAssembler* _masm, vmIntrinsics::ID iid);
  77   static void generate_method_handle_dispatch(MacroAssembler* _masm,
  78                                               vmIntrinsics::ID iid,
  79                                               Register receiver_reg,
  80                                               Register member_reg,
  81                                               bool for_compiler_entry);
  82 
  83   // Queries
  84   static bool is_signature_polymorphic(vmIntrinsics::ID iid) {

  32 #include "runtime/interfaceSupport.hpp"
  33 
  34 class MacroAssembler;
  35 class Label;
  36 
  37 class MethodHandles: AllStatic {
  38   // JVM support for MethodHandle, MethodType, and related types
  39   // in java.lang.invoke and sun.invoke.
  40   // See also  javaClasses for layouts java_lang_invoke_Method{Handle,Type,Type::Form}.
  41  public:
  42  public:
  43   static bool enabled()                         { return _enabled; }
  44   static void set_enabled(bool z);
  45 
  46  private:
  47   static bool _enabled;
  48 
  49   // Adapters.
  50   static MethodHandlesAdapterBlob* _adapter_code;
  51 
  52   // utility functions for reifying names and types
  53   static oop field_name_or_null(Symbol* s);
  54   static oop field_signature_type_or_null(Symbol* s);
  55 
  56  public:
  57   // working with member names
  58   static Handle resolve_MemberName(Handle mname, TRAPS); // compute vmtarget/vmindex from name/type
  59   static void expand_MemberName(Handle mname, int suppress, TRAPS);  // expand defc/name/type if missing
  60   static Handle new_MemberName(TRAPS);  // must be followed by init_MemberName
  61   static oop init_MemberName(Handle mname_h, Handle target_h); // compute vmtarget/vmindex from target
  62   static oop init_field_MemberName(Handle mname_h, fieldDescriptor& fd, bool is_setter = false);
  63   static oop init_method_MemberName(Handle mname_h, CallInfo& info);





  64   static int method_ref_kind(Method* m, bool do_dispatch_if_possible = true);
  65   static int find_MemberNames(KlassHandle k, Symbol* name, Symbol* sig,
  66                               int mflags, KlassHandle caller,
  67                               int skip, objArrayHandle results);
  68   // bit values for suppress argument to expand_MemberName:
  69   enum { _suppress_defc = 1, _suppress_name = 2, _suppress_type = 4 };
  70 
  71   // Generate MethodHandles adapters.
  72                               static void generate_adapters();
  73 
  74   // Called from MethodHandlesAdapterGenerator.
  75   static address generate_method_handle_interpreter_entry(MacroAssembler* _masm, vmIntrinsics::ID iid);
  76   static void generate_method_handle_dispatch(MacroAssembler* _masm,
  77                                               vmIntrinsics::ID iid,
  78                                               Register receiver_reg,
  79                                               Register member_reg,
  80                                               bool for_compiler_entry);
  81 
  82   // Queries
  83   static bool is_signature_polymorphic(vmIntrinsics::ID iid) {