// // $Id$ // // ============================================================================ // // = LIBRARY // TAO IDL // // = FILENAME // direct_collocated_ss.cpp // // = DESCRIPTION // Visitor generating code for direct_collocated Operation in the skeleton. // // = AUTHOR // Aniruddha Gokhale // // ============================================================================ #include "idl.h" #include "idl_extern.h" #include "be.h" #include "be_visitor_operation.h" ACE_RCSID(be_visitor_operation, direct_collocated_ss, "$Id$") // ************************************************************************* // be_visitor_operation_direct_collocated_ss -- // This visitor generates code for the direct_collocated operation signature in a // server skeletons file // ************************************************************************* be_visitor_operation_direct_collocated_ss::be_visitor_operation_direct_collocated_ss (be_visitor_context *ctx) : be_visitor_scope (ctx) { } be_visitor_operation_direct_collocated_ss::~be_visitor_operation_direct_collocated_ss (void) { } int be_visitor_operation_direct_collocated_ss::visit_operation (be_operation *node) { TAO_OutStream *os = this->ctx_->stream (); // We need the interface node in which this operation was defined. However, // if this operation node was an attribute node in disguise, we get this // information from the context be_interface *intf; intf = this->ctx_->attribute () ? be_interface::narrow_from_scope (this->ctx_->attribute ()->defined_in ()) : be_interface::narrow_from_scope (node->defined_in ()); if (!intf) { ACE_ERROR_RETURN ((LM_ERROR, "(%N:%l) be_visitor_operation_direct_collocated_ss::" "visit_operation - " "bad interface scope\n"), -1); } // retrieve the operation return type be_type *bt = be_type::narrow_from_decl (node->return_type ()); if (!bt) { ACE_ERROR_RETURN ((LM_ERROR, "(%N:%l) be_visitor_operation_direct_collocated_ss::" "visit_operation - " "Bad return type\n"), -1); } // STEP 2: generate the return type mapping (same as in the header file) be_visitor_context ctx (*this->ctx_); ctx.state (TAO_CodeGen::TAO_OPERATION_RETTYPE_OTHERS); be_visitor *visitor = tao_cg->make_visitor (&ctx); if (!visitor) { ACE_ERROR_RETURN ((LM_ERROR, "be_visitor_operation_direct_collocated_ss::" "visit_operation - " "Bad visitor for return type\n"), -1); } if (bt->accept (visitor) == -1) { delete visitor; ACE_ERROR_RETURN ((LM_ERROR, "(%N:%l) be_visitor_operation_direct_collocated_ss::" "visit_operation - " "codegen for return type failed\n"), -1); } delete visitor; *os << " " << intf->full_coll_name (be_interface::DIRECT) << "::" << node->local_name () << " "; // STEP 4: generate the argument list with the appropriate mapping (same as // in the header file) ctx = *this->ctx_; ctx.state (TAO_CodeGen::TAO_OPERATION_ARGLIST_OTHERS); visitor = tao_cg->make_visitor (&ctx); if (!visitor) { ACE_ERROR_RETURN ((LM_ERROR, "be_visitor_operation_cs::" "visit_operation - " "Bad visitor to return type\n"), -1); } if (node->accept (visitor) == -1) { delete visitor; ACE_ERROR_RETURN ((LM_ERROR, "(%N:%l) be_visitor_operation_cs::" "visit_operation - " "codegen for argument list failed\n"), -1); } delete visitor; *os << "{" << be_idt << "\n"; os->indent (); if (!this->void_return_type (bt)) { *os << "return "; } *os << "this->servant_"; if (this->gen_invoke (ctx, node) == -1) return -1; *os << be_uidt_nl << "}\n\n"; return 0; } int be_visitor_operation_direct_collocated_ss::gen_invoke (be_visitor_context &ctx, be_operation *node) { TAO_OutStream *os = this->ctx_->stream (); *os << "->" << node->local_name () << " (" << be_idt << be_idt << "\n"; ctx = *this->ctx_; ctx.state (TAO_CodeGen::TAO_OPERATION_COLLOCATED_ARG_UPCALL_SS); be_visitor *visitor = tao_cg->make_visitor (&ctx); if (!visitor || (node->accept (visitor) == -1)) { delete visitor; ACE_ERROR_RETURN ((LM_ERROR, "(%N:%l) be_visitor_operation_direct_collocated_ss::" "gen_invoke - " "codegen for making upcall failed\n"), -1); } // end the upcall *os << be_uidt_nl << ");\n" << be_uidt; return 0; } int be_visitor_operation_direct_collocated_ss::void_return_type (be_type *bt) { // is the operation return type void? if (bt->node_type () == AST_Decl::NT_pre_defined && (be_predefined_type::narrow_from_decl (bt)->pt () == AST_PredefinedType::PT_void)) return 1; else return 0; }