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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_lisp.h"
#include <stdarg.h>
void
ao_lisp_error_poly(char *name, ao_poly poly, ao_poly last)
{
int first = 1;
printf("\t\t%s(", name);
if (ao_lisp_poly_type(poly) == AO_LISP_CONS) {
if (poly) {
while (poly) {
struct ao_lisp_cons *cons = ao_lisp_poly_cons(poly);
if (!first)
printf("\t\t ");
else
first = 0;
ao_lisp_poly_print(cons->car);
printf("\n");
if (poly == last)
break;
poly = cons->cdr;
}
printf("\t\t )\n");
} else
printf(")\n");
} else {
ao_lisp_poly_print(poly);
printf("\n");
}
}
static void tabs(int indent)
{
while (indent--)
printf("\t");
}
void
ao_lisp_error_frame(int indent, char *name, struct ao_lisp_frame *frame)
{
int f;
tabs(indent);
printf ("%s{", name);
if (frame) {
if (frame->type & AO_LISP_FRAME_PRINT)
printf("recurse...");
else {
frame->type |= AO_LISP_FRAME_PRINT;
for (f = 0; f < frame->num; f++) {
if (f != 0) {
tabs(indent);
printf(" ");
}
ao_lisp_poly_print(frame->vals[f].atom);
printf(" = ");
ao_lisp_poly_print(frame->vals[f].val);
printf("\n");
}
if (frame->prev)
ao_lisp_error_frame(indent + 1, "prev: ", ao_lisp_poly_frame(frame->prev));
frame->type &= ~AO_LISP_FRAME_PRINT;
}
tabs(indent);
printf(" }\n");
} else
printf ("}\n");
}
ao_poly
ao_lisp_error(int error, char *format, ...)
{
va_list args;
ao_lisp_exception |= error;
va_start(args, format);
vprintf(format, args);
va_end(args);
printf("\n");
printf("Value: "); ao_lisp_poly_print(ao_lisp_v); printf("\n");
printf("Stack:\n");
ao_lisp_stack_print(ao_lisp_stack_poly(ao_lisp_stack));
printf("Globals:\n\t");
ao_lisp_frame_print(ao_lisp_frame_poly(ao_lisp_frame_global));
printf("\n");
return AO_LISP_NIL;
}
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