java_bytecode_parse_tree.cpp

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/*******************************************************************\
 
Module:
 
Author: Daniel Kroening, kroening@kroening.com
 
\*******************************************************************/
 
#include "java_bytecode_parse_tree.h"
 
#include <algorithm>
#include <ostream>
 
#include <util/symbol_table.h>
#include <util/namespace.h>
 
#include "expr2java.h"
 
void java_bytecode_parse_treet::output(std::ostream &out) const
{
  parsed_class.output(out);
 
  out << "Class references:\n";
  for(const auto &class_ref : class_refs)
    out << "  " << class_ref << '\n';
}
 
void java_bytecode_parse_treet::classt::output(std::ostream &out) const
{
  for(const auto &annotation : annotations)
  {
    annotation.output(out);
    out << '\n';
  }
 
  out << "class " << name;
  if(!super_class.empty())
    out << " extends " << super_class;
  out << " {" << '\n';
 
  for(const auto &field : fields)
    field.output(out);
 
  out << '\n';
 
  for(const auto &method : methods)
    method.output(out);
 
  out << '}' << '\n';
  out << '\n';
}
 
void java_bytecode_parse_treet::annotationt::output(std::ostream &out) const
{
  symbol_tablet symbol_table;
  namespacet ns(symbol_table);
 
  out << '@' << type2java(type, ns);
 
  if(!element_value_pairs.empty())
  {
    out << '(';
 
    bool first=true;
    for(const auto &element_value_pair : element_value_pairs)
    {
      if(first)
        first=false;
      else
        out << ", ";
      element_value_pair.output(out);
    }
 
    out << ')';
  }
}
 
void java_bytecode_parse_treet::annotationt::element_value_pairt::output(
  std::ostream &out) const
{
  symbol_tablet symbol_table;
  namespacet ns(symbol_table);
 
  out << '"' << element_name << '"' << '=';
  out << expr2java(value, ns);
}

std::optional<java_bytecode_parse_treet::annotationt>
java_bytecode_parse_treet::find_annotation(
  const annotationst &annotations,
  const irep_idt &annotation_type_name)
{
  const auto annotation_it = std::find_if(
    annotations.begin(),
    annotations.end(),
    [&annotation_type_name](const annotationt &annotation) {
      if(annotation.type.id() != ID_pointer)
        return false;
      const typet &type = to_pointer_type(annotation.type).base_type();
      return type.id() == ID_struct_tag &&
             to_struct_tag_type(type).get_identifier() == annotation_type_name;
    });
  if(annotation_it == annotations.end())
    return {};
  return *annotation_it;
}
 
void java_bytecode_parse_treet::methodt::output(std::ostream &out) const
{
  symbol_tablet symbol_table;
  namespacet ns(symbol_table);
 
  for(const auto &annotation : annotations)
  {
    out << "  ";
    annotation.output(out);
    out << '\n';
  }
 
  out << "  ";
 
  if(is_public)
    out << "public ";
 
  if(is_protected)
    out << "protected ";
 
  if(is_private)
    out << "private ";
 
  if(is_static)
    out << "static ";
 
  if(is_final)
    out << "final ";
 
  if(is_native)
    out << "native ";
 
  if(is_synchronized)
    out << "synchronized ";
 
  out << name;
  out << " : " << descriptor;
 
  out << '\n';
 
  out << "  {" << '\n';
 
  for(const auto &i : instructions)
  {
    if(!i.source_location.get_line().empty())
      out << "    // " << i.source_location << '\n';
 
    out << "    " << i.address << ": ";
    out << bytecode_info[i.bytecode].mnemonic;
 
    bool first = true;
    for(const auto &arg : i.args)
    {
      if(first)
        first = false;
      else
        out << ',';
#if 0
      out << ' ' << from_expr(arg);
#else
      out << ' ' << expr2java(arg, ns);
#endif
    }
 
    out << '\n';
  }
 
  out << "  }" << '\n';
 
  out << '\n';
 
  out << "  Locals:\n";
  for(const auto &v : local_variable_table)
  {
    out << "    " << v.index << ": " << v.name << ' '
        << v.descriptor << '\n';
  }
 
  out << '\n';
}
 
void java_bytecode_parse_treet::fieldt::output(std::ostream &out) const
{
  for(const auto &annotation : annotations)
  {
    out << "  ";
    annotation.output(out);
    out << '\n';
  }
 
  out << "  ";
 
  if(is_public)
    out << "public ";
 
  if(is_static)
    out << "static ";
 
  out << name;
  out << " : " << descriptor << ';';
 
  out << '\n';
}