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// $Id$
/* -*- c++ -*- */
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// be_codegen.h
//
// = DESCRIPTION
// The Code generator class
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#if !defined (TAO_BE_CODEGEN_H)
#define TAO_BE_CODEGEN_H
#define NAMEBUFSIZE 1024
// maximum length of static buffers used to store names
class TAO_Visitor_Factory;
class be_visitor_context;
class TAO_CodeGen
{
// = TITLE
// TAO_CodeGen
//
// = DESCRIPTION
// Holds global parameters for the Back End and generates the C++ mapping
//
public:
// define all the code generation states. The first letter C/S of the suffix stands
// for client/server-side and the second letter H/I/S stands for
// header/inline/impl file. These are used to denote the state or the context
// of code generation we are in and serves to produce the right kind of
// visitor for us
enum CG_STATE
{
// initial state
TAO_INITIAL,
// rest of the state in alphabetical order of the types
// emitting code for arguments of an operation. No distinction between
// headers, inlines, stubs.
TAO_ARGUMENT_CH, // in client header
TAO_ARGUMENT_CI, // in client inline
TAO_ARGUMENT_CS, // in client stubs
TAO_ARGUMENT_SH, // in server header
TAO_ARGUMENT_SI, // in server inline
TAO_ARGUMENT_SS, // in server skeleton
TAO_ARGUMENT_ARGLIST_CH, // argument in op signature of
// ... client header
TAO_ARGUMENT_ARGLIST_OTHERS, // ... in other cases
TAO_ARGUMENT_PRE_DOCALL_CS, // preprocessing of argument
// variable before passing to
// do_call (in stub)
TAO_ARGUMENT_DOCALL_CS, // passing argument variable to do_call
TAO_ARGUMENT_POST_DOCALL_CS, // postprocessing of argument
// variable after do_call
TAO_ARGUMENT_VARDECL_SS, // declaration of argument
// variable in skeleton (server)
TAO_ARGUMENT_MARSHAL_SS, // passing argument node to the
TAO_ARGUMENT_DEMARSHAL_SS, // demarshal and marshal
// operations
TAO_ARGUMENT_POST_MARSHAL_SS,
TAO_ARGUMENT_PRE_UPCALL_SS, // preprocessing of argument
// variable before upcall
TAO_ARGUMENT_UPCALL_SS, // passing argument variable to upcall
TAO_ARGUMENT_POST_UPCALL_SS, // postprocessing of argument
// variable after upcall
// emitting code for attributes.
TAO_ATTRIBUTE_CH, // in client header
TAO_ATTRIBUTE_CS, // in client stubs
TAO_ATTRIBUTE_SH, // in server header
TAO_ATTRIBUTE_SS, // in server skeletons
TAO_ATTRIBUTE_COLLOCATED_SH, // in server header for collocated
TAO_ATTRIBUTE_COLLOCATED_SS, // in server skeletons for
// collocated
TAO_ATTRIBUTE_RETVAL_DECL_SS,
TAO_ATTRIBUTE_RETVAL_ASSIGN_SS,
TAO_ATTRIBUTE_RETURN_TYPE_CH,
TAO_ATTRIBUTE_INPARAM_TYPE_CH,
TAO_ATTRIBUTE_RETURN_TYPE_CS,
TAO_ATTRIBUTE_RETVAL_DECL_CS,
TAO_ATTRIBUTE_RETVAL_EXCEPTION_CS,
TAO_ATTRIBUTE_RETVAL_RETURN_CS,
TAO_ATTRIBUTE_INPARAM_TYPE_CS,
TAO_ATTRIBUTE_PRE_DOCALL_CS,
TAO_ATTRIBUTE_DOCALL_CS,
TAO_ATTRIBUTE_POST_DOCALL_CS,
TAO_ATTRIBUTE_RETURN_TYPE_SH,
TAO_ATTRIBUTE_INPARAM_TYPE_SH,
TAO_ATTRIBUTE_RESULT_SS,
TAO_ATTRIBUTE_INPARAM_TYPE_SS,
TAO_ATTRIBUTE_PRE_UPCALL_SS,
TAO_ATTRIBUTE_UPCALL_SS,
TAO_ATTRIBUTE_POST_UPCALL_SS,
// emitting code for array defn
TAO_ARRAY_CH,
TAO_ARRAY_CI,
TAO_ARRAY_CS,
TAO_ARRAY_DEFN_CH,
TAO_ARRAY_DEFN_CI,
TAO_ARRAY_DEFN_CS,
TAO_ARRAY_DEFN_SH,
TAO_ARRAY_DEFN_SI,
TAO_ARRAY_DEFN_SS,
// emitting code for rest of the array decl
TAO_ARRAY_OTHER_CH,
TAO_ARRAY_OTHER_CI,
TAO_ARRAY_OTHER_CS,
TAO_ARRAY_OTHER_SH,
TAO_ARRAY_OTHER_SI,
TAO_ARRAY_OTHER_SS,
// emitting code for the constants
TAO_CONSTANT_CH, // in client header
TAO_CONSTANT_CI, // XXXASG rm?
TAO_CONSTANT_CS, // in client stub
// emitting code for enums
TAO_ENUM_CH, // in client header
TAO_ENUM_CI, // XXXASG rm?
TAO_ENUM_CS, // in client stubs
TAO_ENUM_SH, // XXXASG rm? all 3
TAO_ENUM_SI,
TAO_ENUM_SS,
// emitting code for exceptions
TAO_EXCEPTION_CH,
TAO_EXCEPTION_CTOR_CH,
TAO_EXCEPTION_CI,
TAO_EXCEPTION_CS,
TAO_EXCEPTION_CTOR_CS,
TAO_EXCEPTION_CTOR_ASSIGN_CS,
TAO_EXCEPTION_SH,
TAO_EXCEPTION_SI,
TAO_EXCEPTION_SS,
// emitting fields i.e., struct members
TAO_FIELD_CH,
TAO_FIELD_CI,
TAO_FIELD_CS,
// emitting code for the interface
TAO_INTERFACE_CH,
TAO_INTERFACE_CI,
TAO_INTERFACE_CS,
TAO_INTERFACE_SH,
TAO_INTERFACE_SI,
TAO_INTERFACE_SS,
TAO_INTERFACE_COLLOCATED_SH,
TAO_INTERFACE_COLLOCATED_SS,
// emitting code for the interface forward declaration
TAO_INTERFACE_FWD_CH,
TAO_INTERFACE_FWD_CI,
// emitting code for the module
TAO_MODULE_CH,
TAO_MODULE_CI,
TAO_MODULE_CS,
TAO_MODULE_SH,
TAO_MODULE_SI,
TAO_MODULE_SS,
// emitting code for an operation.
TAO_OPERATION_CH, // in client header
TAO_OPERATION_CI, // XXXASG rm?
TAO_OPERATION_CS, // in client stubs
TAO_OPERATION_SH, // in server header
TAO_OPERATION_SI, // XXXASG rm?
TAO_OPERATION_SS, // in server skeletons
TAO_OPERATION_COLLOCATED_SH, // in collocated server header
TAO_OPERATION_COLLOCATED_SS, // in collocated server skel
TAO_OPERATION_RETTYPE_CH, // return type in client header op
// signature
TAO_OPERATION_RETTYPE_OTHERS, // ... in other cases
TAO_OPERATION_RETURN_TYPE_CS, //
TAO_OPERATION_ARGLIST_CH, // parameter list in op signature
// ... for client header
TAO_OPERATION_ARGLIST_SH, // ... for server header
TAO_OPERATION_ARGLIST_COLLOCATED_SH, // ... for collocated server
TAO_OPERATION_ARGLIST_OTHERS, // ... for all other cases
TAO_OPERATION_RETVAL_DECL_CS, // return value variable declaration
TAO_OPERATION_RETVAL_EXCEPTION_CS, // return value on exception (error)
TAO_OPERATION_RETVAL_PRE_DOCALL_CS, // preprocessing for return value
// before sending over the wire
TAO_OPERATION_ARG_PRE_DOCALL_CS, // preprocessing of arguments
// before do_call
TAO_OPERATION_RETVAL_DOCALL_CS, // passing the return type
// variable to do_call
TAO_OPERATION_ARG_DOCALL_CS, // passing argument variable to do_call
TAO_OPERATION_RETVAL_POST_DOCALL_CS, // processing of return type
// after do_call
TAO_OPERATION_ARG_POST_DOCALL_CS, // processing of arg after do_call
TAO_OPERATION_RETVAL_RETURN_CS, // returning the return type variable
TAO_OPERATION_RETVAL_DECL_SS, // return type decl in skeleton
TAO_OPERATION_ARG_DECL_SS, // argument decl in skeleton
TAO_OPERATION_RETVAL_DEMARSHAL_SS, // passing return type variable
TAO_OPERATION_ARG_DEMARSHAL_SS, // and argument variables to the
TAO_OPERATION_RETVAL_MARSHAL_SS, // marshal and demarshal operations
TAO_OPERATION_ARG_MARSHAL_SS,
TAO_OPERATION_ARG_POST_MARSHAL_SS,
TAO_OPERATION_RETVAL_ASSIGN_SS, // assigning to return type
// variable
TAO_OPERATION_ARG_PRE_UPCALL_SS, // pre upcall processing
TAO_OPERATION_RETVAL_UPCALL_SS, // passing return type var and argument
TAO_OPERATION_ARG_UPCALL_SS, // variables to upcall
TAO_OPERATION_RETVAL_POST_UPCALL_SS, // post upcall processing for
TAO_OPERATION_ARG_POST_UPCALL_SS, // return and argument variables
TAO_OPERATION_RESULT_SS, // XXXASG rm?
// for predefined type
TAO_PREDEFINED_TYPE_CH,
TAO_PREDEFINED_TYPE_CI,
TAO_PREDEFINED_TYPE_CS,
// emitting code for root
TAO_ROOT_CH,
TAO_ROOT_CI,
TAO_ROOT_CS,
TAO_ROOT_SH,
TAO_ROOT_SI,
TAO_ROOT_SS,
// emitting sequences
TAO_SEQUENCE_CH,
TAO_SEQUENCE_CI,
TAO_SEQUENCE_CS,
// emitting code for sequence base type
TAO_SEQUENCE_BASE_CH,
TAO_SEQUENCE_BASE_CI,
TAO_SEQUENCE_BASE_CS,
TAO_SEQUENCE_BASE_SH,
TAO_SEQUENCE_BASE_SI,
TAO_SEQUENCE_BASE_SS,
// emitting code for sequence body
TAO_SEQUENCE_BODY_CH,
TAO_SEQUENCE_BODY_CI,
TAO_SEQUENCE_BODY_CS,
TAO_SEQUENCE_BODY_SH,
TAO_SEQUENCE_BODY_SI,
TAO_SEQUENCE_BODY_SS,
// for special sequnce elements
TAO_SEQELEM_RETTYPE_CH,
TAO_SEQELEM_RETTYPE_CI,
TAO_SEQELEM_RETTYPE_CS,
// for sequence buffer types
TAO_SEQUENCE_BUFFER_TYPE_CH,
TAO_SEQUENCE_BUFFER_TYPE_CI,
TAO_SEQUENCE_BUFFER_TYPE_CS,
// emitting code for strings
TAO_STRING_CH,
TAO_STRING_CI,
TAO_STRING_CS,
TAO_STRING_SH,
TAO_STRING_SI,
TAO_STRING_SS,
// emitting code for struct and its members
TAO_STRUCT_CH,
TAO_STRUCT_CI,
TAO_STRUCT_CS,
// emitting code for typedefs
TAO_TYPEDEF_CH,
TAO_TYPEDEF_CI,
TAO_TYPEDEF_CS,
TAO_TYPEDEF_SH,
TAO_TYPEDEF_SI,
TAO_TYPEDEF_SS,
// emitting code for unions
TAO_UNION_CH,
TAO_UNION_CI,
TAO_UNION_CS,
// emitting code for the discriminant
TAO_UNION_DISCTYPEDEFN_CH,
TAO_UNION_DISCTYPEDEFN_CI,
TAO_UNION_DISCTYPEDEFN_CS,
TAO_UNION_DISCTYPEDEFN_SH,
TAO_UNION_DISCTYPEDEFN_SI,
TAO_UNION_DISCTYPEDEFN_SS,
// emitting code for the public members of the union
TAO_UNION_PUBLIC_CH,
TAO_UNION_PUBLIC_CI,
TAO_UNION_PUBLIC_CS,
TAO_UNION_PUBLIC_ASSIGN_CS,
TAO_UNION_PUBLIC_SH,
TAO_UNION_PUBLIC_SI,
TAO_UNION_PUBLIC_SS,
// emitting code for private members of the union
TAO_UNION_PRIVATE_CH,
TAO_UNION_PRIVATE_CI,
TAO_UNION_PRIVATE_CS,
TAO_UNION_PRIVATE_SH,
TAO_UNION_PRIVATE_SI,
TAO_UNION_PRIVATE_SS,
// Always must be last
TAO_UNKNOWN
};
TAO_CodeGen (void);
// Constructor
~TAO_CodeGen (void);
// destructor
be_visitor *make_visitor (be_visitor_context *);
// Factory that makes the right visitor based on the contex. This
// delegates the task to its factory data member
be_state *make_state (void);
// factory method returning appropriate subclass of the be_state object
// based on the current code generation state
int gen_cplusplus_mapping (void);
// generate the C++ mapping for CORBA IDL
int client_header (const char *fname);
// set the client header stream
TAO_OutStream *client_header (void);
// get the client header stream
int client_stubs (const char *fname);
// set the client stub stream
TAO_OutStream *client_stubs (void);
// get the client stubs stream
int client_inline (const char *fname);
// set the client inline stream
TAO_OutStream *client_inline (void);
// get the client inline stream
int server_header (const char *fname);
// set the server header stream
TAO_OutStream *server_header (void);
// get the server header stream
int server_skeletons (const char *fname);
// set the server skeletons stream
TAO_OutStream *server_skeletons (void);
// get the server skeletons stream
int server_inline (const char *fname);
// set the server inline stream
TAO_OutStream *server_inline (void);
// get the server inline stream
void outstream (TAO_OutStream *os);
// set current out stream
TAO_OutStream *outstream (void);
// retrieve current out stream being used
void visitor_factory (TAO_Visitor_Factory *);
// set the visitor factory object
int end_client_header (void);
// put a last #endif in the client header
int end_server_header (void);
// put a last #endif in the server header
void push (CG_STATE s);
// set the code generation state
void pop (void);
// out of the current state
void reset (void);
// reset the stack to 1
CG_STATE state (void);
// return the current state
void node (be_decl *n);
// pass info
be_decl *node (void);
// retrieve passed info
const char *upcase (const char *str);
// convert input string to all upcase
private:
TAO_OutStream *client_header_;
// client header stream
TAO_OutStream *client_stubs_;
// client stub file stream
TAO_OutStream *client_inline_;
// client side inline definitions
TAO_OutStream *server_header_;
// server header stream
TAO_OutStream *server_skeletons_;
// server skeleton stream
TAO_OutStream *server_inline_;
// server side inline file
TAO_OutStream *curr_os_;
// currently used out stream
CG_STATE *state_;
// code generation state stack
int top_;
// top of state stack
int size_;
// size of allocated stack
be_decl *node_;
// save current node in this
TAO_Visitor_Factory *visitor_factory_;
// visitor factory object
};
typedef ACE_Singleton<TAO_CodeGen, ACE_SYNCH_RECURSIVE_MUTEX> TAO_CODEGEN;
// Singleton instance of the BE code generator
extern TAO_CodeGen *tao_cg; // code generator instance which is used everywhere
#endif // if !defined
|