diff options
Diffstat (limited to 'ACE/TAO/TAO_IDL/be/be_visitor_interface/interface_ch.cpp')
| -rw-r--r-- | ACE/TAO/TAO_IDL/be/be_visitor_interface/interface_ch.cpp | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/ACE/TAO/TAO_IDL/be/be_visitor_interface/interface_ch.cpp b/ACE/TAO/TAO_IDL/be/be_visitor_interface/interface_ch.cpp new file mode 100644 index 00000000000..eca268c294e --- /dev/null +++ b/ACE/TAO/TAO_IDL/be/be_visitor_interface/interface_ch.cpp @@ -0,0 +1,441 @@ +// +// $Id$ +// + +// ============================================================================ +// +// = LIBRARY +// TAO IDL +// +// = FILENAME +// interface_ch.cpp +// +// = DESCRIPTION +// Visitor generating code for Interfaces in the client header +// +// = AUTHOR +// Aniruddha Gokhale +// +// ============================================================================ + +// ****************************************************** +// Interface visitor for client header +// ****************************************************** + +be_visitor_interface_ch::be_visitor_interface_ch (be_visitor_context *ctx) + : be_visitor_interface (ctx) +{ +} + +be_visitor_interface_ch::~be_visitor_interface_ch (void) +{ +} + +int +be_visitor_interface_ch::visit_interface (be_interface *node) +{ + if (node->cli_hdr_gen () || node->imported ()) + { + return 0; + } + + // This will be a no-op if it has already been done by a forward + // declaration. + node->gen_var_out_seq_decls (); + + TAO_OutStream *os = this->ctx_->stream (); + long i; + + *os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl + << "// " << __FILE__ << ":" << __LINE__; + + // Now generate the class definition. + *os << be_nl << be_nl + << "class " << be_global->stub_export_macro () + << " " << node->local_name () << be_idt_nl + << ": " ; + + long nparents = node->n_inherits (); + int has_concrete_parent = 0; + + // If node interface inherits from other interfaces. + if (nparents > 0) + { + *os << be_idt; + + for (i = 0; i < nparents; ++i) + { + if (! node->inherits ()[i]->is_abstract ()) + { + has_concrete_parent = 1; + } + + *os << "public virtual ::" + << node->inherits ()[i]->name (); + + if (i < nparents - 1) + { + // Node has multiple inheritance, so put a comma. + *os << "," << be_nl; + } + } + + if (has_concrete_parent == 1 || node->is_abstract ()) + { + *os << be_uidt << be_uidt_nl; + } + else if (! node->is_abstract ()) + { + *os << "," << be_nl; + } + } + + if (node->is_abstract () && nparents == 0) + { + *os << "public virtual ::CORBA::AbstractBase" << be_uidt_nl; + } + + if (has_concrete_parent == 0 && ! node->is_abstract ()) + { + *os << "public virtual ::CORBA::Object"; + + if (nparents > 0) + { + *os << be_uidt; + } + + *os << be_uidt_nl; + } + + // Generate the body. + + *os << "{" << be_nl + << "public:" << be_idt_nl; + + if (!node->is_local () && !node->is_abstract ()) + { + *os << "friend class TAO::Narrow_Utils<" + << node->local_name () << ">;" << be_nl; + } + else if (!node->is_local () && node->is_abstract ()) + { + *os << "friend class TAO::AbstractBase_Narrow_Utils<" + << node->local_name () << ">;" << be_nl; + } + + *os << "typedef " << node->local_name () << "_ptr _ptr_type;" + << be_nl + << "typedef " << node->local_name () << "_var _var_type;" + << be_nl + << "typedef " << node->local_name () << "_out _out_type;" + << be_nl << be_nl; + + // Generate the static _duplicate, _narrow, _unchecked_narrow and + // _nil operations. + *os << "// The static operations." << be_nl + << "static " << node->local_name () << "_ptr " << "_duplicate (" + << node->local_name () << "_ptr obj);" << be_nl << be_nl + << "static void _tao_release (" + << node->local_name () << "_ptr obj);" << be_nl << be_nl; + + if (this->gen_xxx_narrow ("_narrow", + node, + os) == false) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%P|%t) Error in " + "be_visitor_interface_ch::" + "visit_interface while generating " + "_narrow () declaration\n"), + -1); + } + + if (this->gen_xxx_narrow ("_unchecked_narrow", + node, + os) == false) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%P|%t) Error in " + "be_visitor_interface_ch::" + "visit_interface while generating " + "_unchecked_narrow () declaration\n"), + -1); + } + + // This method is defined in the header file to workaround old + // g++ problems. + *os << "static " << node->local_name () << "_ptr _nil (void)" + << be_nl + << "{" << be_idt_nl + << "return static_cast<" << node->local_name () + << "_ptr> (0);" << be_uidt_nl + << "}" << be_nl << be_nl; + + bool gen_any_destructor = + be_global->any_support () + && (!node->is_local () || be_global->gen_local_iface_anyops ()); + + if (gen_any_destructor) + { + *os << "static void _tao_any_destructor (void *);"; + } + + // Generate code for the interface definition by traversing thru the + // elements of its scope. We depend on the front-end to have made sure + // that only legal syntactic elements appear in our scope. + + if (this->visit_scope (node) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_interface_ch::" + "visit_interface - " + "codegen for scope failed\n"), + -1); + } + + if (node->is_local ()) + { + if (node->convert_parent_ops (this) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_interface_ch::" + "visit_interface - " + "converting parent ops failed\n"), + -1); + } + } + + *os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl + << "// " << __FILE__ << ":" << __LINE__ << be_nl << be_nl; + + // If we inherit from both CORBA::Object and CORBA::AbstractBase, + // we have to override _add_ref() to avoid ambiguity. + if (node->has_mixed_parentage ()) + { + *os << "virtual void _add_ref (void);" << be_nl << be_nl; + } + + // The _is_a method + *os << "virtual ::CORBA::Boolean _is_a (const char *type_id);" << be_nl; + + // The _interface_repository_id method. + *os << "virtual const char* _interface_repository_id (void) const;"; + + // The virtual marshal method, to prevent marshal of local iterfaces. + *os << be_nl + << "virtual ::CORBA::Boolean marshal (TAO_OutputCDR &cdr);"; + + if (be_global->gen_ostream_operators ()) + { + *os << be_nl + << "virtual std::ostream &_tao_stream_v (std::ostream &) const;"; + } + + if (! node->is_local () && + (be_global->gen_direct_collocation() || be_global->gen_thru_poa_collocation ())) + { + // Add the Proxy Broker member variable. + *os << be_uidt_nl + << "private:" << be_idt_nl + << "TAO::Collocation_Proxy_Broker *" + << "the" << node->base_proxy_broker_name () + << "_;"; + } + + *os << be_uidt_nl << be_nl + << "protected:" << be_idt_nl; + + if (! node->is_local ()) + { + // Generate the "protected" constructor so that users cannot + // instantiate us. + + if (! node->is_abstract ()) + { + *os << "// Concrete interface only." << be_nl + << node->local_name () << " (void);" + << be_nl << be_nl; + } + + if (be_global->gen_direct_collocation() || be_global->gen_thru_poa_collocation ()) + { + *os << "// These methods traverse the inheritance tree and set the" + << be_nl + << "// parents piece of the given class in the right mode." + << be_nl + << "virtual void " << node->flat_name () + << "_setup_collocation (void);" << be_nl << be_nl; + } + } + + if (node->is_abstract () || node->is_local ()) + { + // Protected default constructor for abstract interfaces. + *os << "// Abstract or local interface only." << be_nl + << node->local_name () << " (void);" << be_nl << be_nl; + } + + if (node->is_abstract ()) + { + // Protected copy constructor for abstract interfaces. + *os << "// Protected for abstract interfaces." << be_nl + << node->local_name () << " (const " + << node->local_name () << " &);" << be_nl << be_nl; + } + + // Local interfaces don't support stub objects. + if (! node->is_local ()) + { + if (! node->is_abstract ()) + { + *os << "// Concrete non-local interface only." << be_nl + << node->local_name () << " (" << be_idt << be_idt_nl + << "::IOP::IOR *ior," << be_nl + << "TAO_ORB_Core *orb_core);" << be_uidt + << be_uidt_nl << be_nl; + } + + *os << "// Non-local interface only." << be_nl + << node->local_name () << " (" << be_idt << be_idt_nl + << "TAO_Stub *objref," << be_nl + << "::CORBA::Boolean _tao_collocated = false," << be_nl + << "TAO_Abstract_ServantBase *servant = 0," << be_nl + << "TAO_ORB_Core *orb_core = 0);" << be_uidt + << be_uidt_nl << be_nl; + } + + // Protected destructor. + *os << "virtual ~" << node->local_name () << " (void);"; + + // Private copy constructor and assignment operator. These are not + // allowed, hence they are private. + *os << be_uidt_nl << be_nl + << "private:" << be_idt_nl; + + // Abstract interfaces have a *protected* copy constructor. + if (! node->is_abstract ()) + { + *os << "// Private and unimplemented for concrete interfaces." << be_nl + << node->local_name () << " (const " + << node->local_name () << " &);" << be_nl << be_nl; + } + + *os << "void operator= (const " << node->local_name () << " &);"; + + // Generate the embedded RequestInfo classes per operation. + // This is to be used by interceptors. + be_visitor_context ctx (*this->ctx_); + + ctx = *this->ctx_; + + *os << be_uidt_nl; + *os << "};"; + + // Don't support smart proxies for local interfaces. + if (! node->is_local ()) + { + // List that generates proxy broker factory function pointer. + be_global->non_local_interfaces.enqueue_tail (node); + + if (be_global->gen_smart_proxies ()) + { + *os << be_nl << be_nl; + + // Smart Proxy related classes. + ctx.state (TAO_CodeGen::TAO_INTERFACE_SMART_PROXY_CH); + be_visitor_interface_smart_proxy_ch sp_visitor (&ctx); + + if (node->accept (&sp_visitor) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "be_visitor_interface_ch::" + "visit_interface - " + "codegen for smart proxy classes failed\n"), + -1); + } + } + } + + if (be_global->tc_support () && !node->home_equiv ()) + { + be_visitor_typecode_decl td_visitor (&ctx); + + if (node->accept (&td_visitor) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_interface_ch::" + "visit_interface - " + "TypeCode declaration failed\n"), + -1); + } + } + + node->cli_hdr_gen (true); + return 0; +} + +int +be_visitor_interface_ch::gen_abstract_ops_helper (be_interface *node, + be_interface *base, + TAO_OutStream *os) +{ + if (!base->is_abstract ()) + { + return 0; + } + + AST_Decl *d = 0; + be_visitor_context ctx; + ctx.stream (os); + + for (UTL_ScopeActiveIterator si (base, UTL_Scope::IK_decls); + !si.is_done (); + si.next ()) + { + d = si.item (); + + if (d == 0) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_interface::" + "gen_abstract_ops_helper - " + "bad node in this scope\n"), + -1); + } + + if (d->node_type () == AST_Decl::NT_op) + { + + be_operation *op = be_operation::narrow_from_decl (d); + op->set_local (node->is_local ()); + ctx.state (TAO_CodeGen::TAO_OPERATION_CH); + be_visitor_operation_ch op_visitor (&ctx); + op_visitor.visit_operation (op); + op->set_local (base->is_local ()); + } + } + + return 0; +} + +bool +be_visitor_interface_ch::gen_xxx_narrow (const char *nar, + be_interface *node, + TAO_OutStream *os) +{ + *os << "static " << node->local_name () << "_ptr " + << nar << " ("; + + if (node->is_abstract ()) + { + *os << "::CORBA::AbstractBase_ptr obj"; + } + else + { + *os << "::CORBA::Object_ptr obj"; + } + + *os << ");" << be_nl; + + return true; +} |