src/hotspot/share/utilities/constantTag.cpp

rev 52749 : Bootstrap method consolidation
* clean up and simplify JDK support code for BSM invocation
* simplify JVM bootstrap handshake: use BootstrapCallInfo only
* remove unused JVM paths and data fields
* move bootstrap argument processing from MethodHandleNatives to ConstantPool
* remove ConstantGroup; merge argument access into BootstrapCallInfo
* adjust BSM argument access: remove copyArguments, add argumentRef API
* add metadata-free BSM modes, including symbolic arguments from CP

*** 66,75 ****
--- 66,100 ----
        return T_ILLEGAL;
    }
  }
  
  
+ // value as specified in the classfile format
+ jbyte constantTag::classfile_value() const {
+   switch (_tag) {
+   case JVM_CONSTANT_ClassIndex:
+   case JVM_CONSTANT_UnresolvedClass:
+   case JVM_CONSTANT_UnresolvedClassInError:
+     return JVM_CONSTANT_Class;
+   case JVM_CONSTANT_StringIndex:
+     return JVM_CONSTANT_String;
+   case JVM_CONSTANT_MethodHandleInError:
+     return JVM_CONSTANT_MethodHandle;
+   case JVM_CONSTANT_MethodTypeInError:
+     return JVM_CONSTANT_MethodType;
+   case JVM_CONSTANT_DynamicInError:
+     return JVM_CONSTANT_Dynamic;
+   default:
+     // Return a zero tag for a gap after Long or Double,
+     // even though that doesn't exactly appear in a classfile.
+     assert(_tag >= 0 && _tag <= JVM_CONSTANT_ExternalMax,
+            "cannot interpret tag %d as a standard classfile tag", _tag);
+     return _tag;
+   }
+ }
+ 
+ 
  jbyte constantTag::non_error_value() const {
    switch (_tag) {
    case JVM_CONSTANT_UnresolvedClassInError:
      return JVM_CONSTANT_UnresolvedClass;
    case JVM_CONSTANT_MethodHandleInError: