diff options
Diffstat (limited to 'ACE/TAO/TAO_IDL/be/be_visitor_operation/argument_marshal.cpp')
| -rw-r--r-- | ACE/TAO/TAO_IDL/be/be_visitor_operation/argument_marshal.cpp | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/ACE/TAO/TAO_IDL/be/be_visitor_operation/argument_marshal.cpp b/ACE/TAO/TAO_IDL/be/be_visitor_operation/argument_marshal.cpp new file mode 100644 index 00000000000..4cab39b61bf --- /dev/null +++ b/ACE/TAO/TAO_IDL/be/be_visitor_operation/argument_marshal.cpp @@ -0,0 +1,287 @@ +// +// $Id$ +// + +// ============================================================================ +// +// = LIBRARY +// TAO IDL +// +// = FILENAME +// argument_marshal.cpp +// +// = DESCRIPTION +// Visitor to pass arguments to the CDR operators. This one helps in +// generating the && and the , at the right place. This one is for the +// skeleton side. +// +// = AUTHOR +// Aniruddha Gokhale +// +// ============================================================================ + +ACE_RCSID (be_visitor_operation, + argument_marshal, + "$Id$") + +// ************************************************************ +// operation visitor to handle the passing of arguments to the CDR operators +// ************************************************************ + +be_visitor_operation_argument_marshal::be_visitor_operation_argument_marshal ( + be_visitor_context + *ctx + ) + : be_visitor_operation_argument (ctx), + last_arg_printed_ (be_visitor_operation_argument_marshal::TAO_ARG_NONE) +{ +} + +be_visitor_operation_argument_marshal::~be_visitor_operation_argument_marshal ( + void + ) +{ +} + +int +be_visitor_operation_argument_marshal::pre_process (be_decl *bd) +{ + TAO_OutStream *os = this->ctx_->stream (); + + be_argument *arg = be_argument::narrow_from_decl (bd); + + if (!arg) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) " + "be_visitor_operation_argument_marshal" + "::post_process - " + "Bad argument node\n"), + -1); + } + switch (arg->direction ()) + { + case AST_Argument::dir_IN: + if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT) + { + if (this->last_arg_printed_ != + be_visitor_operation_argument_marshal::TAO_ARG_NONE) + *os << " &&"; + } + else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT) + { + // nothing + } + break; + case AST_Argument::dir_INOUT: + if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT) + { + if (this->last_arg_printed_ != + be_visitor_operation_argument_marshal::TAO_ARG_NONE) + *os << " &&"; + } + else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT) + { + if (this->last_arg_printed_ != + be_visitor_operation_argument_marshal::TAO_ARG_NONE) + *os << " &&"; + } + break; + case AST_Argument::dir_OUT: + if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT) + { + // nothing + } + else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT) + { + if (this->last_arg_printed_ != + be_visitor_operation_argument_marshal::TAO_ARG_NONE) + *os << " &&"; + } + break; + } + + return 0; +} + +int +be_visitor_operation_argument_marshal::post_process (be_decl *bd) +{ + be_argument *arg = be_argument::narrow_from_decl (bd); + + if (!arg) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) " + "be_visitor_operation_argument_marshal" + "::post_process - " + "Bad argument node\n"), + -1); + } + switch (this->ctx_->sub_state ()) + { + case TAO_CodeGen::TAO_CDR_INPUT: + switch (arg->direction ()) + { + case AST_Argument::dir_IN: + // only these arguments get printed + this->last_arg_printed_ = + be_visitor_operation_argument_marshal::TAO_ARG_IN; + break; + case AST_Argument::dir_INOUT: + // only these arguments get printed + this->last_arg_printed_ = + be_visitor_operation_argument_marshal::TAO_ARG_INOUT; + break; + case AST_Argument::dir_OUT: + // these arguments don't get printed for the << operator on the stub + break; + } + break; + case TAO_CodeGen::TAO_CDR_OUTPUT: + switch (arg->direction ()) + { + case AST_Argument::dir_IN: + // these arguments don't get printed for the >> on the stub + break; + case AST_Argument::dir_INOUT: + // only these arguments get printed + this->last_arg_printed_ = + be_visitor_operation_argument_marshal::TAO_ARG_INOUT; + break; + case AST_Argument::dir_OUT: + // only these arguments get printed + this->last_arg_printed_ = + be_visitor_operation_argument_marshal::TAO_ARG_OUT; + break; + } + break; + default: + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) " + "be_visitor_operation_argument_marshal" + "::post_process - " + "Bad sub state\n"), + -1); + } + + return 0; +} + +// **************************************************************** + +be_visitor_args_decl::be_visitor_args_decl (be_visitor_context *ctx) + : be_visitor_scope (ctx) +{ +} + +int +be_visitor_args_decl::visit_operation (be_operation *node) +{ + return this->visit_scope (node); +} + +int +be_visitor_args_decl::visit_argument (be_argument *node) +{ + this->ctx_->node (node); // save the argument node + + // retrieve the type of the argument + be_type *bt = be_type::narrow_from_decl (node->field_type ()); + + return bt->accept (this); +} + +// visit array +int +be_visitor_args_decl::visit_array (be_array *node) +{ + TAO_OutStream *os = this->ctx_->stream (); + + // retrieve the field node + be_argument *f = this->ctx_->be_node_as_argument (); + + if (f == 0) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_args_decl::" + "visit_array - " + "cannot retrieve argument node\n"), + -1); + } + + // for anonymous arrays, the type name has a _ prepended. We compute + // the full_name with or without the underscore and use it later on. + char fname [NAMEBUFSIZE]; // to hold the full and + + ACE_OS::memset (fname, + '\0', + NAMEBUFSIZE); + + if (!this->ctx_->alias () // not a typedef + && node->is_child (this->ctx_->scope ()->decl ())) + { + // For anonymous arrays ... + // We have to generate a name for us that has an underscope + // prepended to our local name. This needs to be inserted after + // the parents's name. + + if (node->is_nested ()) + { + be_decl *parent = + be_scope::narrow_from_scope (node->defined_in ())->decl (); + + ACE_OS::sprintf (fname, + "%s::_%s", + parent->full_name (), + node->local_name ()->get_string ()); + } + else + { + ACE_OS::sprintf (fname, + "_%s", + node->full_name ()); + } + } + else + { + // Typedefed node. + ACE_OS::sprintf (fname, + "%s", + node->full_name ()); + } + + if (f->direction () != AST_Argument::dir_IN) + { + *os << fname << "_forany " + << "_tao_argument_" << f->local_name () << " (" + << be_idt << be_idt_nl + << f->local_name () + << be_uidt_nl << ");" << be_uidt_nl; + } + + return 0; +} + +// visit typedef type +int +be_visitor_args_decl::visit_typedef (be_typedef *node) +{ + this->ctx_->alias (node); + + // the node to be visited in the base primitve type that gets typedefed + be_type *bt = node->primitive_base_type (); + + if (!bt || (bt->accept (this) == -1)) + { + ACE_ERROR_RETURN ((LM_ERROR, + "(%N:%l) be_visitor_args_decl::" + "visit_typedef - " + "Bad primitive type\n" + ), + -1); + } + + this->ctx_->alias (0); + return 0; +} |