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-rw-r--r--TAO/TAO_IDL/be/be_visitor_valuetype/marshal_cs.cpp302
1 files changed, 302 insertions, 0 deletions
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/marshal_cs.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/marshal_cs.cpp
new file mode 100644
index 00000000000..190c730ec48
--- /dev/null
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/marshal_cs.cpp
@@ -0,0 +1,302 @@
+//
+// $Id$
+//
+
+// ============================================================================
+//
+// = LIBRARY
+// TAO IDL
+//
+// = FILENAME
+// marshal_cs.cpp
+//
+// = DESCRIPTION
+// Concrete visitor for valuetypes.
+// This one provides code generation for marshalling.
+//
+// = AUTHOR
+// Torsten Kuepper <kuepper2@lfa.uni-wuppertal.de>
+//
+// ============================================================================
+
+ACE_RCSID (be_visitor_valuetype,
+ marshal_cs,
+ "$Id$")
+
+be_visitor_valuetype_marshal_cs::be_visitor_valuetype_marshal_cs (
+ be_visitor_context *ctx
+ )
+ : be_visitor_scope (ctx)
+{
+}
+
+be_visitor_valuetype_marshal_cs::~be_visitor_valuetype_marshal_cs (void)
+{
+}
+
+int
+be_visitor_valuetype_marshal_cs::visit_valuetype (be_valuetype *node)
+{
+ TAO_OutStream *os = this->ctx_->stream ();
+ this->ctx_->sub_state (TAO_CodeGen::TAO_CDR_OUTPUT);
+
+ *os << "// TAO_IDL - Generated from" << be_nl
+ << "// " << __FILE__ << ":" << __LINE__ << be_nl << be_nl;
+
+ *os << "::CORBA::Boolean" << be_nl;
+
+ this->class_name (node, os);
+
+ *os << "::_tao_marshal_state (TAO_OutputCDR &";
+
+ be_valuetype *inh = node->statefull_inherit ();
+
+ // If the valuetype has no fields, and no stateful inherit,
+ // the stream arg is unused.
+ if (inh != 0 || node->data_members_count () > 0)
+ {
+ *os << "strm";
+ }
+
+ *os << ", TAO_ChunkInfo&";
+ // If the valuetype has no fields, and no stateful inherit,
+ // the chunking helper arg is unused.
+ if (inh != 0 || node->data_members_count () > 0)
+ {
+ *os << "ci";
+ }
+
+ *os << ") const" << be_nl
+ << "{" << be_idt_nl;
+
+ if (inh)
+ {
+ *os << "if (! ci.start_chunk (strm))" << be_idt_nl;
+ *os << "return false;" << be_uidt_nl << be_nl;
+
+ if (inh->opt_accessor ())
+ {
+ *os << "if (!this->";
+
+ this->class_name (inh, os);
+
+ *os << "::_tao_marshal_state (strm, ci))" << be_idt_nl
+ << "{" << be_idt_nl
+ << "return false;" << be_uidt_nl
+ << "}" << be_uidt_nl << be_nl;
+ }
+ // Can access base class only via virtual function.
+ else
+ {
+ *os << "if (! this->_tao_marshal__"
+ << inh->flat_name ()
+ << " (strm, ci))" << be_idt_nl
+ << "{" << be_idt_nl
+ << "return false;" << be_uidt_nl
+ << "}" << be_uidt_nl << be_nl;
+ }
+ }
+
+ be_visitor_context new_ctx = *this->ctx_;
+ be_visitor_valuetype_field_cdr_decl field_out_cdr (&new_ctx);
+ field_out_cdr.visit_scope (node);
+
+ if (node->data_members_count () > 0)
+ {
+ *os << "if (! ci.start_chunk (strm))" << be_idt_nl;
+ *os << "return false;" << be_uidt_nl << be_nl;
+ *os << "CORBA::Boolean const ret = " << be_idt << be_idt_nl;
+
+ // All we have to do is to visit the scope and generate code.
+ this->gen_fields (node,
+ *this->ctx_);
+
+ *os << ";" << be_uidt << be_uidt_nl;
+
+ *os << "if ( ! ret) " << be_idt_nl;
+ *os << "return false; " << be_uidt_nl << be_nl;
+ *os << "if (! ci.end_chunk (strm))" << be_idt_nl;
+ *os << "return false;" << be_uidt_nl << be_nl;
+ }
+
+ if (inh)
+ {
+ *os << "if (! ci.end_chunk (strm))" << be_idt_nl;
+ *os << "return false;" << be_uidt_nl << be_nl;
+ }
+
+ *os << "return true;" << be_uidt_nl;
+ *os << "}" << be_nl << be_nl;
+
+ // Set the substate as generating code for the input operator.
+ this->ctx_->sub_state (TAO_CodeGen::TAO_CDR_INPUT);
+
+ *os << "::CORBA::Boolean" << be_nl;
+
+ this->class_name (node, os);
+
+ *os << "::_tao_unmarshal_state (TAO_InputCDR &";
+
+ // If the valuetype has no fields, and no stateful inherit,
+ // the stream arg is unused.
+ if (inh != 0 || node->data_members_count () > 0)
+ {
+ *os << "strm";
+ }
+
+ *os << ", TAO_ChunkInfo&";
+ // If the valuetype has no fields, and no stateful inherit,
+ // the chunking helper arg is unused.
+ if (inh != 0 || node->data_members_count () > 0)
+ {
+ *os << "ci";
+ }
+
+ *os << ")" << be_nl
+ << "{" << be_idt_nl;
+
+ if (inh)
+ {
+ *os << "if (!ci.handle_chunking (strm))" << be_idt_nl;
+ *os << "return false;" << be_uidt_nl << be_nl;
+
+ if (inh->opt_accessor ())
+ {
+ *os << "if (!this->";
+
+ this->class_name (inh, os);
+
+ *os << "::_tao_unmarshal_state (strm, ci))" << be_idt_nl
+ << "{" << be_idt_nl
+ << "return false;" << be_uidt_nl
+ << "}" << be_uidt_nl << be_nl;
+ }
+ else // only can access base class via virtual function
+ {
+ *os << "if (!this->_tao_unmarshal__"
+ << inh->flat_name ()
+ << " (strm, ci))" << be_idt_nl
+ << "{" << be_idt_nl
+ << "return false;" << be_uidt_nl
+ << "}" << be_uidt_nl << be_nl;
+ }
+ }
+
+ be_visitor_valuetype_field_cdr_decl field_in_cdr (&new_ctx);
+ field_in_cdr.visit_scope (node);
+
+ if (node->data_members_count () > 0)
+ {
+ *os << "if (!ci.handle_chunking (strm))" << be_idt_nl;
+ *os << "return false;" << be_uidt_nl << be_nl;
+ *os << "CORBA::Boolean const ret = " << be_idt << be_idt_nl;
+
+ // All we have to do is to visit the scope and generate code.
+ this->gen_fields (node,
+ *this->ctx_);
+
+ *os << ";" << be_uidt << be_uidt_nl;
+
+ *os << "if (!ret) " << be_idt_nl;
+ *os << "return false; " << be_uidt_nl << be_nl;
+ *os << "if (this->require_truncation_)" << be_idt_nl;
+ *os << "return ci.skip_chunks (strm);" << be_uidt_nl << be_nl;
+ *os << "else" << be_idt_nl;
+ *os << "return ci.handle_chunking (strm);" << be_uidt_nl << be_nl;
+ }
+ else
+ *os << "return true;";
+ *os << be_uidt_nl << "}" << be_nl << be_nl;
+
+ *os << "void" << be_nl;
+
+ this->class_name (node, os);
+
+ *os << "::truncation_hook (void)" << be_nl
+ << "{" << be_idt_nl
+ << "this->require_truncation_ = true;" << be_uidt_nl
+ << "}" << be_nl << be_nl;
+
+ return 0;
+}
+
+int
+be_visitor_valuetype_marshal_cs::visit_eventtype (be_eventtype *node)
+{
+ return this->visit_valuetype (node);
+}
+
+void
+be_visitor_valuetype_marshal_cs::class_name (be_valuetype *node,
+ TAO_OutStream *os)
+{
+ if (node->opt_accessor ())
+ {
+ be_decl *scope =
+ be_scope::narrow_from_scope (node->defined_in ())->decl ();
+
+ *os << scope->name () << "::"
+ << node->local_name ();
+ }
+ else
+ {
+ *os << node->full_obv_skel_name ();
+ }
+}
+
+// Operations for field marshaling.
+int
+be_visitor_valuetype_marshal_cs::gen_fields (be_valuetype *node,
+ be_visitor_context &ctx)
+{
+ int n_processed = 0;
+ TAO_OutStream *os = ctx.stream ();
+ this->elem_number_ = 0;
+
+ // Initialize an iterator to iterate thru our scope.
+ for (UTL_ScopeActiveIterator si (node, UTL_Scope::IK_decls);
+ !si.is_done ();
+ si.next())
+ {
+ AST_Decl *d = si.item ();
+
+ if (!d)
+ {
+ ACE_ERROR_RETURN ((LM_ERROR,
+ "(%N:%l) be_visitor_scope::visit_scope - "
+ "bad node in this scope\n"),
+ -1);
+ }
+
+ be_field *field = be_field::narrow_from_decl (d);
+
+ if (field)
+ {
+ if (n_processed > 0)
+ {
+ *os << " &&" << be_nl;
+ }
+
+ ++n_processed;
+ be_visitor_valuetype_field_cdr_cs visitor (&ctx);
+ visitor.pre_ = node->field_pd_prefix ();
+ visitor.post_ = node->field_pd_postfix ();
+
+ if (visitor.visit_field (field) == -1)
+ {
+ ACE_ERROR_RETURN ((LM_ERROR,
+ "(%N:%l) be_visitor_valuetype_marshal_cs::"
+ "visit_valuetype - "
+ "codegen for scope failed\n"),
+ -1);
+ }
+ }
+ }
+
+ if (n_processed == 0)
+ {
+ *os << "true";
+ }
+
+ return 0;
+}
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