diff options
Diffstat (limited to 'trunk/TAO/TAO_IDL/be/be_visitor_sequence/sequence_ch.cpp')
| -rw-r--r-- | trunk/TAO/TAO_IDL/be/be_visitor_sequence/sequence_ch.cpp | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/trunk/TAO/TAO_IDL/be/be_visitor_sequence/sequence_ch.cpp b/trunk/TAO/TAO_IDL/be/be_visitor_sequence/sequence_ch.cpp new file mode 100644 index 00000000000..7752e68912a --- /dev/null +++ b/trunk/TAO/TAO_IDL/be/be_visitor_sequence/sequence_ch.cpp @@ -0,0 +1,265 @@ +// +// $Id$ +// + +// ============================================================================ +// +// = LIBRARY +// TAO IDL +// +// = FILENAME +// sequence_ch.cpp +// +// = DESCRIPTION +// Visitor generating code for Sequence in the client header +// +// = AUTHOR +// Aniruddha Gokhale +// +// ============================================================================ + +ACE_RCSID (be_visitor_sequence, + sequence_ch, + "$Id$") + +// Root visitor for client header. +be_visitor_sequence_ch::be_visitor_sequence_ch (be_visitor_context *ctx) + : be_visitor_decl (ctx) +{ +} + +be_visitor_sequence_ch::~be_visitor_sequence_ch (void) +{ +} + +int be_visitor_sequence_ch::visit_sequence (be_sequence *node) +{ + if (node->defined_in () == 0) + { + // The node is a nested sequence, and has had no scope defined. + node->set_defined_in (DeclAsScope (this->ctx_->scope ())); + } + + // First create a name for ourselves. + if (node->create_name (this->ctx_->tdef ()) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_sequence_ch::" + "visit_sequence - " + "failed creating name\n"), + -1); + } + + if (node->cli_hdr_gen () || node->imported ()) + { + return 0; + } + + TAO_OutStream *os = this->ctx_->stream (); + + // Retrieve the base type since we may need to do some code + // generation for the base type. + be_type *bt = be_type::narrow_from_decl (node->base_type ()); + + if (bt == 0) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_sequence_ch::" + "visit_sequence - " + "Bad element type\n"), + -1); + } + + bt->seen_in_sequence (true); + AST_Decl::NodeType nt = bt->node_type (); + + // If our base type is an anonymous sequence, we must create a name + // and generate a class declaration for it as well. + if (nt == AST_Decl::NT_sequence) + { + // Temporarily make the context's tdef node 0 so the nested call + // to create_name will not get confused and give our anonymous + // sequence element type the same name as we have. + be_typedef *tmp = this->ctx_->tdef (); + this->ctx_->tdef (0); + + if (bt->accept (this) != 0) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_sequence_ch::" + "visit_sequence - " + "codegen for anonymous base type failed\n"), + -1); + } + + // Restore the tdef value. + this->ctx_->tdef (tmp); + } + + *os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl + << "// " << __FILE__ << ":" << __LINE__; + + os->gen_ifdef_macro (node->flat_name ()); + + if (this->ctx_->tdef () != 0) + { + *os << be_nl << be_nl + << "class " << node->local_name () << ";"; + } + + if (this->ctx_->tdef () != 0) + { + this->gen_varout_typedefs (node, + bt); + } + + *os << be_nl << be_nl + << "class " << be_global->stub_export_macro () << " " + << node->local_name () << be_idt_nl + << ": public" << be_idt << be_idt_nl; + + if (node->gen_base_class_name (os, "", this->ctx_->scope ()) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_sequence_ch::" + "visit_sequence - " + "Base class name generation failed\n"), + -1); + } + + *os << be_uidt << be_uidt << be_uidt; + + *os << be_nl + << "{" << be_nl + << "public:" << be_idt; + + *os << be_nl + << node->local_name () << " (void);"; + + if (node->unbounded ()) + { + *os << be_nl + << node->local_name () << " ( ::CORBA::ULong max);"; + } + + *os << be_nl + << node->local_name () << " (" << be_idt << be_idt; + + if (node->unbounded ()) + { + *os << be_nl + << "::CORBA::ULong max,"; + } + + *os << be_nl + << "::CORBA::ULong length," << be_nl; + + // Generate the base type for the buffer. + be_visitor_context ctx (*this->ctx_); + ctx.state (TAO_CodeGen::TAO_SEQUENCE_BUFFER_TYPE_CH); + be_visitor_sequence_buffer_type bt_visitor (&ctx); + + if (bt->accept (&bt_visitor) == -1) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_sequence_ch::" + "visit_sequence - " + "base type visit failed\n"), + -1); + } + + *os << "* buffer, " << be_nl + << "::CORBA::Boolean release = false" << be_uidt_nl + << ");" << be_uidt_nl; + *os << node->local_name () << " (const " << node->local_name () + << " &);" << be_nl; + *os << "virtual ~" << node->local_name () << " (void);"; + + if (be_global->any_support () && !node->anonymous ()) + { + *os << be_nl << be_nl + << "static void _tao_any_destructor (void *);"; + } + + // Generate the _var_type typedef (only if we are not anonymous). + if (this->ctx_->tdef () != 0) + { + *os << be_nl << be_nl + << "typedef " << node->local_name () << "_var _var_type;" + << be_nl + << "typedef " << node->local_name () << "_out _out_type;" + << be_nl << be_nl; + } + + // TAO provides extensions for octet sequences, first find out if + // the base type is an octet (or an alias for octet). + be_predefined_type *predef = 0; + + if (bt->base_node_type () == AST_Type::NT_pre_defined) + { + be_typedef* alias = + be_typedef::narrow_from_decl (bt); + + if (alias == 0) + { + predef = be_predefined_type::narrow_from_decl (bt); + } + else + { + predef = + be_predefined_type::narrow_from_decl ( + alias->primitive_base_type () + ); + } + } + + // Now generate the extension... + if (predef != 0 && predef->pt () == AST_PredefinedType::PT_octet + && node->unbounded ()) + { + *os << "\n\n#if (TAO_NO_COPY_OCTET_SEQUENCES == 1)" << be_nl + << node->local_name () << " (" << be_idt << be_idt_nl + << "::CORBA::ULong length," << be_nl + << "const ACE_Message_Block* mb" << be_uidt_nl + << ")" << be_uidt_nl + << " : TAO::unbounded_value_sequence< ::CORBA::Octet>" + << " (length, mb) {}" << "\n" + << "#endif /* TAO_NO_COPY_OCTET_SEQUENCE == 1 */"; + } + + *os << be_uidt_nl + << "};"; + + os->gen_endif (); + + node->cli_hdr_gen (1); + return 0; +} + +void +be_visitor_sequence_ch::gen_varout_typedefs (be_sequence *node, + be_type *elem) +{ + TAO_OutStream *os = this->ctx_->stream (); + + *os << be_nl << be_nl; + + AST_Type::SIZE_TYPE st = elem->size_type (); + + *os << "typedef" << be_idt_nl + << (st == AST_Type::FIXED ? "TAO_FixedSeq_Var_T<" + : "TAO_VarSeq_Var_T<") + << be_idt << be_idt_nl + << node->local_name (); + + *os << be_uidt_nl + << ">" << be_uidt_nl + << node->local_name () << "_var;" << be_uidt; + + *os << be_nl << be_nl + << "typedef" << be_idt_nl + << "TAO_Seq_Out_T<" << be_idt << be_idt_nl + << node->local_name () << be_uidt_nl + << ">" << be_uidt_nl + << node->local_name () << "_out;" << be_uidt; +} |