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rewrite load.c

This commit is contained in:
Yuichi Nishiwaki 2014-09-04 19:11:33 +09:00
parent 7a2b897f17
commit 7b55328ce6
1 changed files with 38 additions and 46 deletions
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90
src/load.c
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@ -4,67 +4,57 @@
#include "picrin.h"
#include "picrin/pair.h"
#include "picrin/port.h"
#include "picrin/error.h"
pic_value
void
pic_load_port(pic_state *pic, struct pic_port *port)
{
pic_value form;
pic_try {
size_t ai = pic_gc_arena_preserve(pic);
while (! pic_eof_p(form = pic_read(pic, port))) {
pic_eval(pic, form, pic->lib);
pic_gc_arena_restore(pic, ai);
}
}
pic_catch {
pic_errorf(pic, "load error: %s", pic_errmsg(pic));
}
}
void
pic_load_cstr(pic_state *pic, const char *src)
{
size_t ai;
pic_value v, exprs;
struct pic_proc *proc;
struct pic_port *port = pic_open_input_string(pic, src);
exprs = pic_parse_cstr(pic, src);
if (pic_undef_p(exprs)) {
pic_errorf(pic, "load: read failure (%s)", pic_errmsg(pic));
pic_load_port(pic, port);
pic_close_port(pic, port);
}
pic_for_each (v, exprs) {
ai = pic_gc_arena_preserve(pic);
proc = pic_compile(pic, v, pic->lib);
if (proc == NULL) {
pic_error(pic, "load: compilation failure");
}
pic_apply(pic, proc, pic_nil_value());
pic_gc_arena_restore(pic, ai);
}
return pic_none_value();
}
pic_value
pic_load(pic_state *pic, const char *fn)
void
pic_load(pic_state *pic, const char *filename)
{
FILE *file;
size_t ai;
pic_value v, exprs;
struct pic_proc *proc;
struct pic_port *port;
xFILE *file;
file = fopen(fn, "r");
file = xfopen(filename, "r");
if (file == NULL) {
pic_errorf(pic, "load: could not read file \"%s\"", fn);
pic_errorf(pic, "could not open file: %s", filename);
}
exprs = pic_parse_file(pic, file);
if (pic_undef_p(exprs)) {
pic_errorf(pic, "load: read failure (%s)", pic_errmsg(pic));
}
port = (struct pic_port *)pic_obj_alloc(pic, sizeof(struct pic_port), PIC_TT_PORT);
port->file = file;
port->flags = PIC_PORT_IN | PIC_PORT_TEXT;
port->status = PIC_PORT_OPEN;
pic_for_each (v, exprs) {
ai = pic_gc_arena_preserve(pic);
pic_load_port(pic, port);
proc = pic_compile(pic, v, pic->lib);
if (proc == NULL) {
pic_error(pic, "load: compilation failure");
}
pic_apply(pic, proc, pic_nil_value());
pic_gc_arena_restore(pic, ai);
}
return pic_none_value();
pic_close_port(pic, port);
}
static pic_value
@ -75,7 +65,9 @@ pic_load_load(pic_state *pic)
pic_get_args(pic, "z|o", &fn, &envid);
return pic_load(pic, fn);
pic_load(pic, fn);
return pic_none_value();
}
void