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/*

 * Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.org/>.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 *

 * 1. Redistributions of source code must retain the above copyright notice,

 *    this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright notice,

 *    this list of conditions and the following disclaimer in the documentation

 *    and/or other materials provided with the distribution.

 * 3. Neither the name of The TenDRA Project nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific, prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS

 * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;

 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 * $Id$

 */

/*

    		 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(void)

{

    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(void)

{

    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(void)

{

    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(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(void)

{

    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(TYPE_P s, char *ptr, char *nm, 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(TYPE_P s, 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(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(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(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("(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("\n");

    output("(FILE *f, 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\n");

	    output("PRINT_%TI(FILE *f_, %TT x_, char *nm_, int d_)\n", t, t);

	    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\n");

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

}