src/share/vm/ci/ciKlass.hpp
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src/share/vm/ci/ciKlass.hpp

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rev 5349 : 8023657: New type profiling points: arguments to call
Summary: x86 interpreter and c1 type profiling for arguments at calls
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  24 
  25 #ifndef SHARE_VM_CI_CIKLASS_HPP
  26 #define SHARE_VM_CI_CIKLASS_HPP
  27 
  28 #include "ci/ciType.hpp"
  29 
  30 // ciKlass
  31 //
  32 // This class and its subclasses represent Klass*s in the
  33 // HotSpot virtual machine.  In the vm, each Klass* contains an
  34 // embedded Klass object.  ciKlass is subclassed to explicitly
  35 // represent the kind of Klass embedded in the Klass*.  For
  36 // example, a Klass* with an embedded ObjArrayKlass object is
  37 // represented in the ciObject hierarchy by the class
  38 // ciObjArrayKlass.
  39 class ciKlass : public ciType {
  40   CI_PACKAGE_ACCESS
  41   friend class ciEnv;
  42   friend class ciField;
  43   friend class ciMethod;

  44   friend class ciObjArrayKlass;
  45 
  46 private:
  47   ciSymbol* _name;
  48   jint _layout_helper;
  49 
  50 protected:
  51   ciKlass(KlassHandle k_h, ciSymbol* name);
  52   ciKlass(ciSymbol* name, BasicType bt);
  53 
  54   Klass* get_Klass() const {
  55     Klass* k = (Klass*)_metadata;
  56     assert(k != NULL, "illegal use of unloaded klass");
  57     return k;
  58   }
  59 
  60   // Certain subklasses have an associated class loader.
  61   virtual oop loader()             { return NULL; }
  62   virtual jobject loader_handle()  { return NULL; }
  63 


 103   virtual bool is_leaf_type() {
 104     return false;
 105   }
 106 
 107   // Attempt to get a klass using this ciKlass's loader.
 108   ciKlass* find_klass(ciSymbol* klass_name);
 109   // Note:  To find a class from its name string, use ciSymbol::make,
 110   // but consider adding to vmSymbols.hpp instead.
 111 
 112   // Get the instance of java.lang.Class corresponding to this klass.
 113   ciInstance*            java_mirror();
 114 
 115   // Fetch Klass::modifier_flags.
 116   jint                   modifier_flags();
 117 
 118   // Fetch Klass::access_flags.
 119   jint                   access_flags();
 120 
 121   // What kind of ciObject is this?
 122   bool is_klass() const { return true; }


 123 
 124   void print_name_on(outputStream* st);
 125 };
 126 
 127 #endif // SHARE_VM_CI_CIKLASS_HPP


  24 
  25 #ifndef SHARE_VM_CI_CIKLASS_HPP
  26 #define SHARE_VM_CI_CIKLASS_HPP
  27 
  28 #include "ci/ciType.hpp"
  29 
  30 // ciKlass
  31 //
  32 // This class and its subclasses represent Klass*s in the
  33 // HotSpot virtual machine.  In the vm, each Klass* contains an
  34 // embedded Klass object.  ciKlass is subclassed to explicitly
  35 // represent the kind of Klass embedded in the Klass*.  For
  36 // example, a Klass* with an embedded ObjArrayKlass object is
  37 // represented in the ciObject hierarchy by the class
  38 // ciObjArrayKlass.
  39 class ciKlass : public ciType {
  40   CI_PACKAGE_ACCESS
  41   friend class ciEnv;
  42   friend class ciField;
  43   friend class ciMethod;
  44   friend class ciMethodData;
  45   friend class ciObjArrayKlass;
  46 
  47 private:
  48   ciSymbol* _name;
  49   jint _layout_helper;
  50 
  51 protected:
  52   ciKlass(KlassHandle k_h, ciSymbol* name);
  53   ciKlass(ciSymbol* name, BasicType bt);
  54 
  55   Klass* get_Klass() const {
  56     Klass* k = (Klass*)_metadata;
  57     assert(k != NULL, "illegal use of unloaded klass");
  58     return k;
  59   }
  60 
  61   // Certain subklasses have an associated class loader.
  62   virtual oop loader()             { return NULL; }
  63   virtual jobject loader_handle()  { return NULL; }
  64 


 104   virtual bool is_leaf_type() {
 105     return false;
 106   }
 107 
 108   // Attempt to get a klass using this ciKlass's loader.
 109   ciKlass* find_klass(ciSymbol* klass_name);
 110   // Note:  To find a class from its name string, use ciSymbol::make,
 111   // but consider adding to vmSymbols.hpp instead.
 112 
 113   // Get the instance of java.lang.Class corresponding to this klass.
 114   ciInstance*            java_mirror();
 115 
 116   // Fetch Klass::modifier_flags.
 117   jint                   modifier_flags();
 118 
 119   // Fetch Klass::access_flags.
 120   jint                   access_flags();
 121 
 122   // What kind of ciObject is this?
 123   bool is_klass() const { return true; }
 124 
 125   virtual ciKlass* exact_klass() = 0;
 126 
 127   void print_name_on(outputStream* st);
 128 };
 129 
 130 #endif // SHARE_VM_CI_CIKLASS_HPP
src/share/vm/ci/ciKlass.hpp
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