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/*

    		 Crown Copyright (c) 1997

    This TenDRA(r) Computer Program is subject to Copyright

    owned by the United Kingdom Secretary of State for Defence

    acting through the Defence Evaluation and Research Agency

    (DERA).  It is made available to Recipients with a

    royalty-free licence for its use, reproduction, transfer

    to other parties and amendment for any purpose not excluding

    product development provided that any such use et cetera

    shall be deemed to be acceptance of the following conditions:-

        (1) Its Recipients shall ensure that this Notice is

        reproduced upon any copies or amended versions of it;

        (2) Any amended version of it shall be clearly marked to

        show both the nature of and the organisation responsible

        for the relevant amendment or amendments;

        (3) Its onward transfer from a recipient to another

        party shall be deemed to be that party's acceptance of

        these conditions;

        (4) DERA gives no warranty or assurance as to its

        quality or suitability for any purpose and DERA accepts

        no liability whatsoever in relation to any use to which

        it may be put.

*/

#include "config.h"

#include "calculus.h"

#include "code.h"

#include "common.h"

#include "output.h"

#include "print.h"

#include "suffix.h"

#include "type_ops.h"

/*

    PRINT A PRIMITIVE PRINTING ROUTINE

    This routine prints the body of the printing routine for the current

    primitive.

*/

static void printer_prim

    PROTO_Z ()

{

    output ( "    print_indent ( f_, d_ ) ;\n" ) ;

    output ( "    ( void ) fprintf ( f_, \"%%s = \", nm_ ) ;\n" ) ;

    output ( "    OUTPUT_%PM ( f_, x_ ) ;\n" ) ;

    output ( "    ( void ) fprintf ( f_, \" ;\\n\" ) ;\n" ) ;

    return ;

}

/*

    PRINT AN ENUMERATION PRINTING ROUTINE

    This routine prints the body of the printing routine for the current

    enumeration.

*/

static void printer_enum

    PROTO_Z ()

{

    output ( "    print_indent ( f_, d_ ) ;\n" ) ;

    output ( "    ( void ) fprintf ( f_, \"%%s = \", nm_ ) ;\n" ) ;

    output ( "    switch ( x_ ) {\n" ) ;

    LOOP_ENUM_CONST {

	output ( "\tcase %EM_%ES : {\n" ) ;

	output ( "\t    ( void ) fprintf ( f_, \"%ES ;\\n\" ) ;\n" ) ;

	output ( "\t    break ;\n" ) ;

	output ( "\t}\n" ) ;

    }

    output ( "\tdefault : {\n" ) ;

    output ( "\t    ( void ) fprintf ( f_, \"%%lu ;\\n\"," ) ;

    output ( " ( unsigned long ) x_ ) ;\n" ) ;

    output ( "\t    break ;\n" ) ;

    output ( "\t}\n" ) ;

    output ( "    }\n" ) ;

    return ;

}

/*

    PRINT A STRUCTURE PRINTING ROUTINE

    This routine prints the body of the printing routine for the current

    structure.

*/

static void printer_struct

    PROTO_Z ()

{

    output ( "    print_indent ( f_, d_ ) ;\n" ) ;

    output ( "    ( void ) fprintf ( f_, \"%%s = {\\n\", nm_ ) ;\n" ) ;

    LOOP_STRUCTURE_COMPONENT {

	TYPE_P t = DEREF_ptr ( cmp_type ( CRT_COMPONENT ) ) ;

	output ( "    PRINT_%TI ( f_, x_.%CN, \"%CN\", d_ + 1 ) ;\n", t ) ;

    }

    output ( "    print_indent ( f_, d_ ) ;\n" ) ;

    output ( "    ( void ) fprintf ( f_, \"}\\n\" ) ;\n" ) ;

    return ;

}

/*

    PRINT A UNION COMPONENT PRINTING ROUTINE

    This routine prints the code for printing a component of a union.

    The argument d gives the token for accessing the component.

*/

static void printer_component

    PROTO_N ( ( d ) )

    PROTO_T ( char *d )

{

    TYPE_P t = DEREF_ptr ( cmp_type ( CRT_COMPONENT ) ) ;

    output ( "\t\t{\n" ) ;

    output ( "\t\t    %TT z_ ;\n", t ) ;

    output ( "\t\t    " ) ;

    print_deref ( t, d, "z_" ) ;

    output ( "\t\t    PRINT_%TI ( f_, z_, \"%CN\", d_ + 1 ) ;\n", t ) ;

    output ( "\t\t}\n" ) ;

    return ;

}

/*

    PRINT A UNION PRINTING ROUTINE

    This routine prints the body of the printing routine for the current

    primitive.

*/

static void printer_union

    PROTO_Z ()

{

    output ( "    print_indent ( f_, d_ ) ;\n" ) ;

    output ( "    if ( IS_NULL_%UM ( x_ ) ) {\n" ) ;

    output ( "\t( void ) fprintf ( f_, \"%%s = NULL_%UM ;\\n\", nm_ ) ;\n" ) ;

    output ( "    } else {\n" ) ;

    output ( "\tswitch ( TAG_%UM ( x_ ) ) {\n" ) ;

    LOOP_UNION_FIELD {

	int al = DEREF_int ( fld_flag ( CRT_FIELD ) ) ;

	output ( "\t    case %UM_%FN_tag : {\n" ) ;

	if ( al ) {

	    output ( "\t\tunsigned alias_ = GET_ALIAS_%UM_%FN ( x_ ) ;\n" ) ;

	    output ( "\t\tif ( alias_ ) {\n" ) ;

	    output ( "\t\t    ( void ) fprintf ( f_, \"%%s = " ) ;

	    output ( "[%%u] ;\\n\", nm_, alias_ ) ;\n" ) ;

	    output ( "\t\t    break ;\n" ) ;

	    output ( "\t\t}\n" ) ;

	    output ( "\t\talias_ = ++crt_%X_alias ;\n" ) ;

	    output ( "\t\tSET_ALIAS_%UM_%FN ( x_, alias_ ) ;\n" ) ;

	    output ( "\t\t( void ) fprintf ( f_, \"%%s = [%%u] = {\\n\", " ) ;

	    output ( "nm_, alias_ ) ;\n" ) ;

	} else {

	    output ( "\t\t( void ) fprintf ( f_, \"%%s = {\\n\", nm_ ) ;\n" ) ;

	}

	output ( "\t\tprint_indent ( f_, d_ + 1 ) ;\n" ) ;

	output ( "\t\t( void ) fprintf ( f_, \"(tag) = %FN ;\\n\" ) ;\n" ) ;

	LOOP_UNION_COMPONENT printer_component ( "%UM_%CN ( x_ )" ) ;

	LOOP_FIELD_COMPONENT printer_component ( "%UM_%FN_%CN ( x_ )" ) ;

	output ( "\t\tprint_indent ( f_, d_ ) ;\n" ) ;

	output ( "\t\t( void ) fprintf ( f_, \"}\\n\" ) ;\n" ) ;

	output ( "\t\tbreak ;\n" ) ;

	output ( "\t    }\n" ) ;

    }

    output ( "\t    default : {\n" ) ;

    output ( "\t\t( void ) fprintf ( f_, \"%%s = ERROR!\\n\", nm_ ) ;\n" ) ;

    output ( "\t\tbreak ;\n" ) ;

    output ( "\t    }\n" ) ;

    output ( "\t}\n" ) ;

    output ( "    }\n" ) ;

    return ;

}

/*

    PRINT A POINTER PRINTING ROUTINE

    This routine prints the body of the printing routine for a pointer

    to s.

*/

static void printer_ptr

    PROTO_N ( ( s, ptr, nm, i ) )

    PROTO_T ( TYPE_P s X char *ptr X char *nm X char *i )

{

    output ( "%s    print_indent ( f_, d_ ) ;\n", i ) ;

    output ( "%s    if ( IS_NULL_ptr ( %s ) ) {\n", i, nm ) ;

    output ( "%s\t( void ) fprintf ( f_, ", i ) ;

    output ( "\"%%s = NULL_ptr ;\\n\", nm_ ) ;\n" ) ;

    output ( "%s    } else if ( d_ < print_ptr_depth ) {\n", i ) ;

    output ( "%s\t%TT z_ ;\n", i, s ) ;

    output ( "%s\t", i ) ;

    print_deref ( s, nm, "z_" ) ;

    output ( "%s\t( void ) fprintf ( f_, ", i ) ;

    output ( "\"%%s = %s {\\n\", nm_ ) ;\n", ptr ) ;

    output ( "%s\tPRINT_%TI ( f_, z_, \"(%TI)\", d_ + 1 ) ;\n", i, s, s ) ;

    output ( "%s\tprint_indent ( f_, d_ ) ;\n", i ) ;

    output ( "%s\t( void ) fprintf ( f_, \"}\\n\" ) ;\n", i ) ;

    output ( "%s    } else {\n", i ) ;

    output ( "%s\t( void ) fprintf ( f_, \"%%s = ", i ) ;

    output ( "0x%%p ;\\n\", nm_, VOIDSTAR_ptr ( %s ) ) ;\n", nm ) ;

    output ( "%s    }\n", i ) ;

    return ;

}

/*

    PRINT A LIST PRINTING ROUTINE

    This routine prints the body of the printing routine for a list

    of s named nm.

*/

static void printer_list

    PROTO_N ( ( s, nm ) )

    PROTO_T ( TYPE_P s X char *nm )

{

    output ( "    print_indent ( f_, d_ ) ;\n" ) ;

    output ( "    ( void ) fprintf ( f_, \"%%s = LIST {\\n\", nm_ ) ;\n" ) ;

    output ( "    while ( !IS_NULL_list ( %s ) ) {\n", nm ) ;

    output ( "\t%TT z_ ;\n", s ) ;

    output ( "\tUN_CONS_%TM ( z_, %s, %s ) ;\n", s, nm, nm ) ;

    output ( "\tPRINT_%TI ( f_, z_, \"(%TI)\", d_ + 1 ) ;\n", s, s ) ;

    output ( "\tif ( !print_list_expand && !IS_NULL_list ( %s ) ) {\n", nm ) ;

    output ( "\t    print_indent ( f_, d_ + 1 ) ;\n" ) ;

    output ( "\t    ( void ) fprintf ( f_, \"(tail) = " ) ;

    output ( "0x%%p ;\\n\", VOIDSTAR_list ( %s ) ) ;\n", nm ) ;

    output ( "\t    break ;\n" ) ;

    output ( "\t}\n" ) ;

    output ( "    }\n" ) ;

    output ( "    print_indent ( f_, d_ ) ;\n" ) ;

    output ( "    ( void ) fprintf ( f_, \"}\\n\" ) ;\n" ) ;

    return ;

}

/*

    PRINT A VECTOR PRINTING ROUTINE

    This routine prints the body of the printing routine for a vector

    of s.

*/

static void printer_vec

    PROTO_N ( ( s ) )

    PROTO_T ( TYPE_P s )

{

    output ( "    print_indent ( f_, d_ ) ;\n" ) ;

    output ( "    {\n" ) ;

    output ( "\t%X_dim n = DIM_vec ( x_ ) ;\n" ) ;

    output ( "\tPTR ( %TT ) y_ = PTR_vec_ptr ( VEC_PTR_vec ( x_ ) ) ;\n", s ) ;

    output ( "\t( void ) fprintf ( f_, \"%%s = {\\n\", nm_ ) ;\n" ) ;

    output ( "\twhile ( n-- ) {\n" ) ;

    printer_ptr ( s, "VEC", "y_", "\t" ) ;

    output ( "\t    y_ = STEP_ptr ( y_, SIZE_%TM ) ;\n", s ) ;

    output ( "\t}\n" ) ;

    output ( "\tprint_indent ( f_, d_ ) ;\n" ) ;

    output ( "\t( void ) fprintf ( f_, \"}\\n\" ) ;\n" ) ;

    output ( "    }\n" ) ;

    return ;

}

/*

    PRINT A VECTOR POINTER PRINTING ROUTINE

    This routine prints the body of the printing routine for a vector

    pointer to s.

*/

static void printer_vec_ptr

    PROTO_N ( ( s ) )

    PROTO_T ( TYPE_P s )

{

    output ( "    PTR ( %TT ) y_ = PTR_vec_ptr ( x_ ) ;\n", s ) ;

    printer_ptr ( s, "VEC_PTR", "y_", "" ) ;

    return ;

}

/*

    PRINT ALL PRINTING ROUTINES

    This routine prints all the printing routines.

*/

void print_action

    PROTO_N ( ( dir ) )

    PROTO_T ( char *dir )

{

    open_file ( dir, PRINT_PREFIX, DEF_SUFFIX ) ;

    print_include () ;

    comment ( "Printing function declarations" ) ;

    LOOP_TYPE {

	TYPE_P t = CRT_TYPE ;

	if ( is_identity_type ( t ) ) {

	    output ( "#ifndef PRINT_%TI\n", t ) ;

	    output ( "#define PRINT_%TI( A, B, C, D ) ", t ) ;

	    output ( "PRINT_%TJ ( ( A ), ( B ), ( C ), ( D ) )\n", t ) ;

	    output ( "#endif\n\n" ) ;

	} else {

	    output ( "#ifndef PRINT_%TI\n", t ) ;

	    output ( "static void PRINT_%TI ", t ) ;

	    output ( "PROTO_S ( ( FILE *, %TT, char *, int ) ) ;\n", t ) ;

	    output ( "#endif\n\n" ) ;

	}

    }

    output ( "\n\n" ) ;

    comment ( "Printing variables" ) ;

    output ( "static int print_indent_step = 4 ;\n" ) ;

    output ( "static int print_ptr_depth = 1 ;\n" ) ;

    output ( "static int print_list_expand = 0 ;\n\n\n" ) ;

    comment ( "Printing indentation routine" ) ;

    output ( "static void print_indent\n" ) ;

    output ( "    PROTO_N ( ( f, d ) )\n" ) ;

    output ( "    PROTO_T ( FILE *f X int d )\n" ) ;

    output ( "{\n" ) ;

    output ( "    int i = print_indent_step * d ;\n" ) ;

    output ( "    while ( i-- ) ( void ) fputc ( ' ', f ) ;\n" ) ;

    output ( "    return ;\n" ) ;

    output ( "}\n\n\n" ) ;

    /* Function definitions */

    LOOP_TYPE {

	TYPE_P t = CRT_TYPE ;

	TYPE t0 = DEREF_type ( t ) ;

	unsigned tag = TAG_type ( t0 ) ;

	if ( !is_identity_type ( t ) ) {

	    /* Function header */

	    int is_struct = 0 ;

	    output ( "/* Printing routines for %TT */\n\n", t ) ;

	    output ( "#ifndef PRINT_%TI\n\n", t ) ;

	    output ( "static void PRINT_%TI\n", t ) ;

	    output ( "    PROTO_N ( ( f_, x_, nm_, d_ ) )\n" ) ;

	    output ( "    PROTO_T ( FILE *f_ X %TT x_ X", t ) ;

	    output ( " char *nm_ X int d_ )\n" ) ;

	    output ( "{\n" ) ;

	    /* Function body */

	    switch ( tag ) {

		case type_primitive_tag : {

		    PRIMITIVE_P p = DEREF_ptr ( type_primitive_prim ( t0 ) ) ;

		    LOOP_PRIMITIVE {

			if ( EQ_ptr ( CRT_PRIMITIVE, p ) ) {

			    printer_prim () ;

			    break ;

			}

		    }

		    break ;

		}

		case type_enumeration_tag : {

		    ENUM_P p = DEREF_ptr ( type_enumeration_en ( t0 ) ) ;

		    LOOP_ENUM {

			if ( EQ_ptr ( CRT_ENUM, p ) ) {

			    printer_enum () ;

			    break ;

			}

		    }

		    break ;

		}

		case type_structure_tag : {

		    STRUCTURE_P p = DEREF_ptr ( type_structure_struc ( t0 ) ) ;

		    LOOP_STRUCTURE {

			if ( EQ_ptr ( CRT_STRUCTURE, p ) ) {

			    printer_struct () ;

			    break ;

			}

		    }

		    is_struct = 1 ;

		    break ;

		}

		case type_onion_tag : {

		    UNION_P p = DEREF_ptr ( type_onion_un ( t0 ) ) ;

		    LOOP_UNION {

			if ( EQ_ptr ( CRT_UNION, p ) ) {

			    printer_union () ;

			    break ;

			}

		    }

		    break ;

		}

		case type_ptr_tag : {

		    TYPE_P s = DEREF_ptr ( type_ptr_sub ( t0 ) ) ;

		    printer_ptr ( s, "PTR", "x_", "" ) ;

		    break ;

		}

		case type_list_tag : {

		    TYPE_P s = DEREF_ptr ( type_list_sub ( t0 ) ) ;

		    printer_list ( s, "x_" ) ;

		    break ;

		}

		case type_stack_tag : {

		    TYPE_P s = DEREF_ptr ( type_stack_sub ( t0 ) ) ;

		    output ( "    LIST ( %TT ) y_ = LIST_stack ( x_ ) ;\n", s ) ;

		    printer_list ( s, "y_" ) ;

		    break ;

		}

		case type_vec_tag : {

		    TYPE_P s = DEREF_ptr ( type_vec_sub ( t0 ) ) ;

		    printer_vec ( s ) ;

		    is_struct = 1 ;

		    break ;

		}

		case type_vec_ptr_tag : {

		    TYPE_P s = DEREF_ptr ( type_vec_ptr_sub ( t0 ) ) ;

		    printer_vec_ptr ( s ) ;

		    is_struct = 1 ;

		    break ;

		}

	    }

	    /* Function trailer */

	    output ( "    return ;\n" ) ;

	    output ( "}\n\n" ) ;

	    /* Debugging routine */

	    if ( extra_asserts ) {

		char *star = ( is_struct ? "*" : "" ) ;

		output ( "#ifdef DEBUG\n\n" ) ;

		output ( "void DEBUG_%TI\n", t ) ;

		output ( "    PROTO_N ( ( x_ ) )\n" ) ;

		output ( "    PROTO_T ( %TT %sx_ )\n", t, star ) ;

		output ( "{\n    " ) ;

		if ( is_struct ) output ( "if ( x_ ) " ) ;

		output ( "PRINT_%TI ( stdout, %sx_, ", t, star ) ;

		output ( "\"%TI\", 0 ) ;\n", t ) ;

		output ( "    return ;\n" ) ;

		output ( "}\n\n" ) ;

		output ( "#endif\n\n" ) ;

	    }

	    output ( "#endif\n\n\n" ) ;

	}

    }

    close_file () ;

    return ;

}