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/*
* Copyright © 2016 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include "ao_scheme.h"
#include <stdarg.h>
void
ao_scheme_error_poly(const char *name, ao_poly poly, ao_poly last)
{
int first = 1;
printf("\t\t%s(", name);
if (ao_scheme_poly_type(poly) == AO_SCHEME_CONS) {
if (poly) {
while (poly) {
struct ao_scheme_cons *cons = ao_scheme_poly_cons(poly);
if (!first)
printf("\t\t ");
else
first = 0;
ao_scheme_poly_write(cons->car);
printf("\n");
if (poly == last)
break;
poly = cons->cdr;
}
printf("\t\t )\n");
} else
printf(")\n");
} else {
ao_scheme_poly_write(poly);
printf("\n");
}
}
static void tabs(int indent)
{
while (indent--)
printf("\t");
}
void
ao_scheme_error_frame(int indent, const char *name, struct ao_scheme_frame *frame)
{
int f;
tabs(indent);
printf ("%s{", name);
if (frame) {
struct ao_scheme_frame_vals *vals = ao_scheme_poly_frame_vals(frame->vals);
if (frame->type & AO_SCHEME_FRAME_PRINT)
printf("recurse...");
else {
frame->type |= AO_SCHEME_FRAME_PRINT;
for (f = 0; f < frame->num; f++) {
if (f != 0) {
tabs(indent);
printf(" ");
}
ao_scheme_poly_write(vals->vals[f].atom);
printf(" = ");
ao_scheme_poly_write(vals->vals[f].val);
printf("\n");
}
if (frame->prev)
ao_scheme_error_frame(indent + 1, "prev: ", ao_scheme_poly_frame(frame->prev));
frame->type &= ~AO_SCHEME_FRAME_PRINT;
}
tabs(indent);
printf(" }\n");
} else
printf ("}\n");
}
void
ao_scheme_vprintf(const char *format, va_list args)
{
char c;
while ((c = *format++) != '\0') {
if (c == '%') {
switch (c = *format++) {
case 'v':
ao_scheme_poly_write((ao_poly) va_arg(args, unsigned int));
break;
case 'p':
printf("%p", va_arg(args, void *));
break;
case 'd':
printf("%d", va_arg(args, int));
break;
case 's':
printf("%s", va_arg(args, char *));
break;
default:
putchar(c);
break;
}
} else
putchar(c);
}
}
void
ao_scheme_printf(const char *format, ...)
{
va_list args;
va_start(args, format);
ao_scheme_vprintf(format, args);
va_end(args);
}
ao_poly
ao_scheme_error(int error, const char *format, ...)
{
va_list args;
ao_scheme_exception |= error;
va_start(args, format);
ao_scheme_vprintf(format, args);
putchar('\n');
va_end(args);
ao_scheme_printf("Value: %v\n", ao_scheme_v);
ao_scheme_printf("Frame: %v\n", ao_scheme_frame_poly(ao_scheme_frame_current));
printf("Stack:\n");
ao_scheme_stack_write(ao_scheme_stack_poly(ao_scheme_stack));
ao_scheme_printf("Globals: %v\n", ao_scheme_frame_poly(ao_scheme_frame_global));
return AO_SCHEME_NIL;
}
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