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#include "print.h"
#include "dbg.h"
#include "errloc.h"
#include "fn.h"
#include "lit.h"
#include "parse.h"
#include "prv.h"
#include "stmt.h"
#include "sym.h"
#include "type.h"
#include <stdlib.h>
#if 0
static int entry(const struct lex *l, const struct tk *tk, struct print *pr,
struct prv *p)
{
size_t n = pr->nentries + 1;
struct prientry *entries;
const struct stentry *stentry = NULL;
const struct fn *fn = fn_cur(p);
const struct lit *lit = NULL;
if (tk->type == ID)
{
const struct type *t = NULL;
if ((t = type_find(fn, tk->s)))
{
if (t->type != C)
{
errloc(tk, "type \"%s\" not a constant", tk->s);
return -1;
}
else if (!(lit = lit_push(t->tk, p)))
return -1;
}
else if (!(stentry = fn_var(fn, tk)))
{
errloc(tk, "undefined reference to \"%s\"", tk->s);
return -1;
}
}
else if (tk->type == LIT && !(lit = lit_push(tk, p)))
return -1;
if (!(entries = realloc(pr->entries, n * sizeof *entries)))
{
perror("realloc(3)");
return -1;
}
pr->entries = entries;
pr->entries[pr->nentries++] = (struct prientry)
{
.tk = tk,
.lit = lit,
.entry = stentry
};
return 0;
}
#endif
static int etc(const struct lex *, struct prv *);
static const struct seq seqs[] =
{
{(struct step[]){{ID, "etc"}, {0}}, .fn = etc},
{0}
};
static const struct sym *inner(const struct sym *s)
{
for (; s; s = s->child)
if (!s->child)
break;
return s;
}
static int fill(struct prv *p, const struct sym *s, struct prisym *ps)
{
switch (s->type)
{
case SYM_LIT:
if (!(ps->u.lit = lit_push(s->tk, p)))
return -1;
ps->type = PRS_LIT;
break;
case SYM_ID:
case SYM_TMP:
case SYM_NUM:
fprintf(stderr, "%s: TODO\n", __func__);
return -1;
case SYM_CAST:
case SYM_ADDR:
case SYM_SZ:
case SYM_CNT:
case SYM_OFF:
fprintf(stderr, "%s: unreachable\n", __func__);
return -1;
}
return 0;
}
static int onsym(const struct lex *l, struct prv *p, const struct sym *s)
{
struct stmt *stmt = stmt_cur(p);
struct print *pr = &stmt->u.print;
size_t n = pr->nsyms + 1;
struct prisym *syms, *nsym;
if (!(syms = realloc(pr->syms, n * sizeof *syms)))
{
perror("realloc(3)");
return -1;
}
pr->syms = syms;
nsym = &syms[pr->nsyms++];
*nsym = (struct prisym){.s = s};
return fill(p, inner(s), nsym);
}
static int cg_str(const struct prisym *s, const char *f)
{
fprintf(stderr, "%s: TODO\n", __func__);
return -1;
}
static int cg_ptr(const struct prisym *s, const char *f)
{
fprintf(stderr, "%s: TODO\n", __func__);
return -1;
}
static int cg_num(const struct prisym *s, const char *f)
{
fprintf(stderr, "%s: TODO\n", __func__);
return -1;
}
static int cg_lit(const struct prisym *s, const char *f)
{
const struct lit *l = s->u.lit;
const char *tmp;
if (!l)
{
fprintf(stderr, "%s: unexpected null literal\n", __func__);
return -1;
}
/* TODO: ask target for sizeof (void *) */
tmp = cgen_tmp(sizeof (void *));
printf("%%%s =l loadl $%s\n", tmp, f);
printf("call $fputs(l $%s, w %%%s)\n", l->name, tmp);
return 0;
}
int print_cgen(const struct print *pr, struct cgen *c, const char *f)
{
for (size_t i = 0; i < pr->nsyms; i++)
{
const struct prisym *ps = &pr->syms[i];
static int (*fn[])(const struct prisym *, const char *) =
{
[PRS_LIT] = cg_lit,
[PRS_STR] = cg_str,
[PRS_PTR] = cg_ptr,
[PRS_NUM] = cg_num
};
if (fn[ps->type](ps, f))
return -1;
}
if (!pr->skipln)
{
printf("%%v =l loadl $%s\n", f);
puts("call $fputc(l 10 , w %v)");
}
return 0;
}
static int etc(const struct lex *l, struct prv *p)
{
struct stmt *stmt = stmt_cur(p);
struct print *pr = &stmt->u.print;
pr->skipln = 1;
reset(p);
return 0;
}
void print_free(struct print *pr)
{
free(pr->syms);
}
int print(const struct lex *l, struct prv *p)
{
struct pos init =
{
.name = __func__,
.seq = seqs
};
if (push(&init, p))
return -1;
return sym(p, onsym);
}
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