expr2tc from_integer(const mp_integer &int_value, const type2tc &type)
{
switch(type->type_id)
{
case type2t::bool_id:
return !int_value.is_zero() ? gen_true_expr() : gen_false_expr();
case type2t::unsignedbv_id:
case type2t::signedbv_id:
return constant_int2tc(type, int_value);
case type2t::fixedbv_id:
{
constant_fixedbv2tc f(fixedbvt(fixedbv_spect(
to_fixedbv_type(type).width, to_fixedbv_type(type).integer_bits)));
f->value.from_integer(int_value);
return f;
}
case type2t::floatbv_id:
{
constant_floatbv2tc f(ieee_floatt(ieee_float_spect(
to_floatbv_type(type).fraction, to_floatbv_type(type).exponent)));
f->value.from_integer(int_value);
return f;
}
default:
abort();
}
}
std::string format_constantt::operator()(const exprt &expr)
{
if(expr.is_constant())
{
if(expr.type().id()==ID_natural ||
expr.type().id()==ID_integer ||
expr.type().id()==ID_unsignedbv ||
expr.type().id()==ID_signedbv)
{
mp_integer i;
if(to_integer(expr, i)) return "(number conversion failed)";
return integer2string(i);
}
else if(expr.type().id()==ID_fixedbv)
{
return fixedbvt(expr).format(*this);
}
else if(expr.type().id()==ID_floatbv)
{
return ieee_floatt(expr).format(*this);
}
}
else if(expr.id()==ID_string_constant)
return expr.get_string(ID_value);
return "(format-constant failed: "+expr.id_string()+")";
}
xmlt xml(
const exprt &expr,
const namespacet &ns)
{
xmlt result;
const typet &type=ns.follow(expr.type());
if(expr.id()==ID_constant)
{
if(type.id()==ID_unsignedbv ||
type.id()==ID_signedbv ||
type.id()==ID_c_bit_field)
{
std::size_t width=to_bitvector_type(type).get_width();
result.name="integer";
result.set_attribute("binary", expr.get_string(ID_value));
result.set_attribute("width", width);
const typet &underlying_type=
type.id()==ID_c_bit_field?type.subtype():
type;
bool is_signed=underlying_type.id()==ID_signedbv;
std::string sig=is_signed?"":"unsigned ";
if(width==config.ansi_c.char_width)
result.set_attribute("c_type", sig+"char");
else if(width==config.ansi_c.int_width)
result.set_attribute("c_type", sig+"int");
else if(width==config.ansi_c.short_int_width)
result.set_attribute("c_type", sig+"short int");
else if(width==config.ansi_c.long_int_width)
result.set_attribute("c_type", sig+"long int");
else if(width==config.ansi_c.long_long_int_width)
result.set_attribute("c_type", sig+"long long int");
mp_integer i;
if(!to_integer(expr, i))
result.data=integer2string(i);
}
else if(type.id()==ID_c_enum)
{
result.name="integer";
result.set_attribute("binary", expr.get_string(ID_value));
result.set_attribute("width", type.subtype().get_string(ID_width));
result.set_attribute("c_type", "enum");
mp_integer i;
if(!to_integer(expr, i))
result.data=integer2string(i);
}
else if(type.id()==ID_c_enum_tag)
{
constant_exprt tmp;
tmp.type()=ns.follow_tag(to_c_enum_tag_type(type));
tmp.set_value(to_constant_expr(expr).get_value());
return xml(tmp, ns);
}
else if(type.id()==ID_bv)
{
result.name="bitvector";
result.set_attribute("binary", expr.get_string(ID_value));
}
else if(type.id()==ID_fixedbv)
{
result.name="fixed";
result.set_attribute("width", type.get_string(ID_width));
result.set_attribute("binary", expr.get_string(ID_value));
result.data=fixedbvt(to_constant_expr(expr)).to_ansi_c_string();
}
else if(type.id()==ID_floatbv)
{
result.name="float";
result.set_attribute("width", type.get_string(ID_width));
result.set_attribute("binary", expr.get_string(ID_value));
result.data=ieee_floatt(to_constant_expr(expr)).to_ansi_c_string();
}
else if(type.id()==ID_pointer)
{
result.name="pointer";
result.set_attribute("binary", expr.get_string(ID_value));
if(expr.get(ID_value)==ID_NULL)
result.data="NULL";
}
else if(type.id()==ID_bool)
{
result.name="boolean";
result.set_attribute("binary", expr.is_true()?"1":"0");
result.data=expr.is_true()?"TRUE":"FALSE";
}
else
{
result.name="unknown";
}
}
else if(expr.id()==ID_array)
{
result.name="array";
unsigned index=0;
forall_operands(it, expr)
{
xmlt &e=result.new_element("element");
e.set_attribute("index", index);
e.new_element(xml(*it, ns));
index++;
}
xmlt xml(
const exprt &expr,
const namespacet &ns)
{
const typet &type=ns.follow(expr.type());
xmlt result;
if(expr.id()==ID_constant)
{
if(type.id()==ID_unsignedbv ||
type.id()==ID_signedbv)
{
result.name="integer";
result.set_attribute("binary", expr.get_string(ID_value));
mp_integer i;
if(!to_integer(expr, i))
result.data=integer2string(i);
}
else if(type.id()==ID_bv)
{
result.name="bitvector";
result.set_attribute("binary", expr.get_string(ID_value));
result.data=expr.get_string(ID_value);
}
else if(type.id()==ID_fixedbv)
{
result.name="fixed";
result.set_attribute("binary", expr.get_string(ID_value));
result.data=fixedbvt(to_constant_expr(expr)).to_ansi_c_string();
}
else if(type.id()==ID_floatbv)
{
result.name="float";
result.set_attribute("binary", expr.get_string(ID_value));
result.data=ieee_floatt(to_constant_expr(expr)).to_ansi_c_string();
}
else if(type.id()==ID_pointer)
{
result.name="pointer";
result.set_attribute("binary", expr.get_string(ID_value));
if(expr.get(ID_value)==ID_NULL)
result.data="NULL";
}
else if(type.id()==ID_bool)
{
result.name="boolean";
result.set_attribute("binary", expr.is_true()?"1":"0");
result.data=expr.is_true()?"TRUE":"FALSE";
}
else
{
result.name="unknown";
}
}
else if(expr.id()==ID_array)
{
result.name="array";
unsigned index=0;
forall_operands(it, expr)
{
xmlt &e=result.new_element("element");
e.set_attribute("index", index);
e.new_element(xml(*it, ns));
index++;
}
json_objectt json(
const exprt &expr,
const namespacet &ns)
{
json_objectt result;
const typet &type=ns.follow(expr.type());
if(expr.id()==ID_constant)
{
if(type.id()==ID_unsignedbv ||
type.id()==ID_signedbv ||
type.id()==ID_c_bit_field)
{
std::size_t width=to_bitvector_type(type).get_width();
result["name"]=json_stringt("integer");
result["binary"]=json_stringt(expr.get_string(ID_value));
result["width"]=json_numbert(i2string(width));
const typet &underlying_type=
type.id()==ID_c_bit_field?type.subtype():
type;
bool is_signed=underlying_type.id()==ID_signedbv;
std::string sig=is_signed?"":"unsigned ";
if(width==config.ansi_c.char_width)
result["c_type"]=json_stringt(sig+"char");
else if(width==config.ansi_c.int_width)
result["c_type"]=json_stringt(sig+"int");
else if(width==config.ansi_c.short_int_width)
result["c_type"]=json_stringt(sig+"short int");
else if(width==config.ansi_c.long_int_width)
result["c_type"]=json_stringt(sig+"long int");
else if(width==config.ansi_c.long_long_int_width)
result["c_type"]=json_stringt(sig+"long long int");
mp_integer i;
if(!to_integer(expr, i))
result["data"]=json_stringt(integer2string(i));
}
else if(type.id()==ID_c_enum)
{
result["name"]=json_stringt("integer");
result["binary"]=json_stringt(expr.get_string(ID_value));
result["width"]=json_numbert(type.subtype().get_string(ID_width));
result["c_type"]=json_stringt("enum");
mp_integer i;
if(!to_integer(expr, i))
result["data"]=json_stringt(integer2string(i));
}
else if(type.id()==ID_c_enum_tag)
{
constant_exprt tmp;
tmp.type()=ns.follow_tag(to_c_enum_tag_type(type));
tmp.set_value(to_constant_expr(expr).get_value());
return json(tmp, ns);
}
else if(type.id()==ID_bv)
{
result["name"]=json_stringt("bitvector");
result["binary"]=json_stringt(expr.get_string(ID_value));
}
else if(type.id()==ID_fixedbv)
{
result["name"]=json_stringt("fixed");
result["width"]=json_numbert(type.get_string(ID_width));
result["binary"]=json_stringt(expr.get_string(ID_value));
result["data"]=
json_stringt(fixedbvt(to_constant_expr(expr)).to_ansi_c_string());
}
else if(type.id()==ID_floatbv)
{
result["name"]=json_stringt("float");
result["width"]=json_numbert(type.get_string(ID_width));
result["binary"]=json_stringt(expr.get_string(ID_value));
result["data"]=
json_stringt(ieee_floatt(to_constant_expr(expr)).to_ansi_c_string());
}
else if(type.id()==ID_pointer)
{
result["name"]=json_stringt("pointer");
result["binary"]=json_stringt(expr.get_string(ID_value));
if(expr.get(ID_value)==ID_NULL)
result["data"]=json_stringt("NULL");
}
else if(type.id()==ID_bool)
{
result["name"]=json_stringt("boolean");
result["binary"]=json_stringt(expr.is_true()?"1":"0");
result["data"]=jsont::json_boolean(expr.is_true());
}
else
{
result["name"]=json_stringt("unknown");
}
}
else if(expr.id()==ID_array)
{
result["name"]=json_stringt("array");
json_arrayt &elements=result["elements"].make_array();
unsigned index=0;
forall_operands(it, expr)
{
json_objectt &e=elements.push_back().make_object();
e["index"]=json_numbert(i2string(index));
e["value"]=json(*it, ns);
index++;
}
