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// file : CCF/IDL2/SemanticAction/Impl/ValueType.cpp
// author : Boris Kolpackov <boris@dre.vanderbilt.edu>
// cvs-id : $Id$
#include "CCF/IDL2/SemanticAction/Impl/ValueType.hpp"
#include <iostream>
using std::cerr;
using std::endl;
namespace CCF
{
namespace IDL2
{
namespace SemanticAction
{
namespace Impl
{
using namespace SemanticGraph;
ValueType::
ValueType (Context& c)
: ScopeBase<SemanticGraph::ValueType> (c)
{
}
void ValueType::
begin_abstract_def (SimpleIdentifierPtr const& id)
{
if (ctx.trace ()) cerr << "abstract valuetype def " << id << endl;
qualifier_ = Qualifier::abstract;
SimpleName name (id->lexeme ());
if (Nameable* s = lookup (ctx.tu (), ctx.scope (), name))
{
now (dynamic_cast<AbstractValueType&>(*s));
}
else
{
now (ctx.tu ().new_node<AbstractValueType> (
ctx.file (), id->line ()));
}
ctx.tu ().new_edge<Defines> (ctx.scope (), now (), name);
}
void ValueType::
begin_abstract_fwd (SimpleIdentifierPtr const& id)
{
if (ctx.trace ()) cerr << "abstract valuetype fwd " << id << endl;
SimpleName name (id->lexeme ());
if (Nameable* s = lookup (ctx.tu (), ctx.scope (), name))
{
now (dynamic_cast<AbstractValueType&>(*s));
}
else
{
now (ctx.tu ().new_node<AbstractValueType> (
ctx.file (), id->line ()));
}
ctx.tu ().new_edge<Mentions> (ctx.scope (), now (), name);
}
void ValueType::
begin_concrete_def (SimpleIdentifierPtr const& id)
{
if (ctx.trace ()) cerr << "concrete valuetype def " << id << endl;
qualifier_ = Qualifier::concrete;
SimpleName name (id->lexeme ());
if (Nameable* s = lookup (ctx.tu (), ctx.scope (), name))
{
now (dynamic_cast<ConcreteValueType&>(*s));
}
else
{
now (ctx.tu ().new_node<ConcreteValueType> (
ctx.file (), id->line ()));
}
ctx.tu ().new_edge<Defines> (ctx.scope (), now (), name);
}
void ValueType::
begin_concrete_fwd (SimpleIdentifierPtr const& id)
{
if (ctx.trace ()) cerr << "concrete valuetype fwd " << id << endl;
SimpleName name (id->lexeme ());
if (Nameable* s = lookup (ctx.tu (), ctx.scope (), name))
{
now (dynamic_cast<ConcreteValueType&>(*s));
}
else
{
now (ctx.tu ().new_node<ConcreteValueType> (
ctx.file (), id->line ()));
}
ctx.tu ().new_edge<Mentions> (ctx.scope (), now (), name);
}
void ValueType::
inherits (IdentifierPtr const& id)
{
if (ctx.trace ()) cerr << "inherits " << id << endl;
Name name (id->lexeme ());
ScopedName from (ctx.scope ().scoped_name ());
try
{
try
{
SemanticGraph::ValueType& v (
resolve<SemanticGraph::ValueType> (from, name, Flags::defined));
check_inheritance (now ().inherits_begin (),
now ().inherits_end (),
v);
bool abstract (dynamic_cast<AbstractValueType*> (&v) != 0);
if (dynamic_cast<AbstractValueType*> (&now ()) != 0)
{
// Abstract valuetype may only inherit from abstract ones.
//
if (!abstract)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "invalid inheritance specification" << endl;
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "abstract valuetype `" << now ().name ()
<< "\' may not inherit from concrete valuetype `"
<< v.scoped_name () << "\'" << endl;
return;
}
}
else
{
// Concrete valuetype may inherit from single concrete
// valutype in which case it should be the first in the
// inheritance list.
//
if (now ().inherits_begin () != now ().inherits_end () &&
!abstract)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "invalid inheritance specification" << endl;
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "concrete valuetype `" << v.scoped_name ()
<< "\' is not the first in the inheritance list of "
<< "valuetype `" << now ().name () << "\'" << endl;
return;
}
}
ctx.tu ().new_edge<Inherits> (now (), v);
ctx.tu ().new_edge<Extends> (now (), v);
}
catch (Resolve const&)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "invalid inheritance specification" << endl;
throw;
}
}
catch (NotFound const&)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "no valuetype with name \'" << name
<< "\' visible from scope \'" << from << "\'" << endl;
}
catch (WrongType const&)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "incompatible type in inheritance specification" << endl;
}
catch (NotDefined const& e)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "attempt to inherit from the forward-declared valuetype "
<< e.name () << endl;
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "inheritance from a forward-declared valuetype is illegal"
<< endl;
}
catch (AlreadyInherited const& e)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "directly inheriting from valuetype \'" << e.name ()
<< "\' more than once is illegal" << endl;
}
}
void ValueType::
supports (IdentifierPtr const& id)
{
if (ctx.trace ()) cerr << "supports " << id << endl;
Name name (id->lexeme ());
ScopedName from (ctx.scope ().scoped_name ());
try
{
try
{
SemanticGraph::Interface& i (
resolve<SemanticGraph::Interface> (from, name, Flags::defined));
check_support (now ().supports_begin (),
now ().supports_end (),
i);
ctx.tu ().new_edge<Supports> (now (), i);
ctx.tu ().new_edge<Extends> (now (), i);
}
catch (Resolve const&)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "invalid supports specification" << endl;
throw;
}
}
catch (NotFound const&)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "no interface with name \'" << name
<< "\' visible from scope \'" << from << "\'" << endl;
}
catch (WrongType const&)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "incompatible type in supports specification" << endl;
}
catch (NotDefined const& e)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "attempt to support forward-declared interface "
<< e.name () << endl;
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "support of forward-declared interface is illegal"
<< endl;
}
catch (AlreadySupported const& e)
{
cerr << ctx.file () << ":" << id->line () << ": error: "
<< "directly supporting interface \'" << e.name ()
<< "\' more than once is illegal" << endl;
}
}
void ValueType::
open_scope ()
{
if (ctx.trace ()) cerr << "scope open" << endl;
push (ctx.scope ());
ctx.scope (now ());
}
void ValueType::
close_scope ()
{
ctx.scope (top ());
pop ();
if (ctx.trace ()) cerr << "scope close" << endl;
}
void ValueType::
end ()
{
if (ctx.trace ()) cerr << "end" << endl;
}
}
}
}
}
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