symbolKlass.cpp

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/* Copyright 1994, 1995 LongView Technologies L.L.C. $Revision: 1.22 $ */
/* Copyright (c) 2006, Sun Microsystems, Inc.
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# include "incls/_precompiled.incl"
# include "incls/_symbolKlass.cpp.incl"
# include <ctype.h>

symbolOop symbolKlass::allocateSymbol(char* value, int len) {
  symbolOop sym = as_symbolOop(Universe::allocate_tenured(object_size(len)));
  sym->init_untagged_contents_mark();
  sym->set_klass_field(Universe::symbolKlassObj());
  sym->set_length(len);
  initialize_object(sym, value, len);
  return sym;
}

klassOop symbolKlass::create_subclass(mixinOop mixin, Format format) {
  if (format == mem_klass || format == symbol_klass) {
    return symbolKlass::create_class(as_klassOop(), mixin);
  }
  return NULL;
}

klassOop symbolKlass::create_class(klassOop super_class, mixinOop mixin) {
  symbolKlass o;
  return create_generic_class(super_class, mixin, o.vtbl_value());
}

void set_symbolKlass_vtbl(Klass* k) {
  symbolKlass o;
  k->set_vtbl_value(o.vtbl_value());
}

oop symbolKlass::scavenge(oop obj) {
  Unused(obj);
  ShouldNotCallThis(); // shouldn't need to scavenge canonical symbols
                       // (should be tenured)
  return NULL;
}

bool symbolKlass::verify(oop obj) {
  return symbolOop(obj)->verify();
}

void symbolKlass::oop_print_value_on(oop obj, outputStream* st) {
  assert_symbol(obj, "dispatch check");
  symbolOop array = symbolOop(obj);
  int len = array->length();
  int n   = min(MaxElementPrintSize, len);
  st->print("#");
  for(int index = 1; index <= n; index++) {
    char c = array->byte_at(index);
    if (isprint(c)) st->print("%c",   c);
    else            st->print("\\%o", c);
  }
 if (n < len) st->print("...");
}

void symbolKlass::print(oop obj) {
  assert_symbol(obj, "dispatch check");
  std->print("'");
  symbolOop(obj)->print_symbol_on();
  std->print("' ");
}

oop symbolKlass::oop_shallow_copy(oop obj, bool tenured) {
  assert_symbol(obj, "dispatch check");
  return obj;
}

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