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refactor macroexpand

This commit is contained in:
Yuichi Nishiwaki 2014-03-24 15:27:03 +09:00
parent 9dcdc45ab6
commit b29832d2c5
1 changed files with 25 additions and 45 deletions
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70
src/macro.c
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@ -224,17 +224,10 @@ macroexpand(pic_state *pic, pic_value expr, struct pic_senv *senv)
pic_in_library(pic, pic_cadr(pic, expr));
pic_for_each (v, pic_cddr(pic, expr)) {
struct pic_proc *proc;
int ai = pic_gc_arena_preserve(pic);
proc = pic_compile(pic, v);
if (proc == NULL) {
abort();
}
pic_apply_argv(pic, proc, 0);
if (pic_undef_p(v)) {
abort();
}
pic_eval(pic, v);
pic_gc_arena_restore(pic, ai);
}
@ -271,7 +264,6 @@ macroexpand(pic_state *pic, pic_value expr, struct pic_senv *senv)
else if (tag == pic->sDEFINE_SYNTAX) {
pic_value var, val;
struct pic_proc *proc;
pic_sym uniq;
struct pic_macro *mac;
@ -290,16 +282,12 @@ macroexpand(pic_state *pic, pic_value expr, struct pic_senv *senv)
xh_put_int(senv->name, pic_sym(var), uniq);
val = pic_cadr(pic, pic_cdr(pic, expr));
proc = pic_compile(pic, val);
if (pic->err) {
printf("macroexpand error: %s\n", pic_errmsg(pic));
abort();
}
v = pic_apply(pic, proc, pic_nil_value());
if (pic->err) {
printf("macroexpand error: %s\n", pic_errmsg(pic));
abort();
}
pic_try {
v = pic_eval(pic, val);
} pic_catch {
pic_errorf(pic, "macroexpand error: %s", pic_errmsg(pic));
}
assert(pic_proc_p(v));
mac = macro_new(pic, pic_proc_ptr(v), senv);
@ -311,7 +299,6 @@ macroexpand(pic_state *pic, pic_value expr, struct pic_senv *senv)
else if (tag == pic->sDEFINE_MACRO) {
pic_value var, val;
struct pic_proc *proc;
pic_sym uniq;
struct pic_macro *mac;
@ -339,16 +326,11 @@ macroexpand(pic_state *pic, pic_value expr, struct pic_senv *senv)
uniq = pic_gensym(pic, pic_sym(var));
xh_put_int(senv->name, pic_sym(var), uniq);
proc = pic_compile(pic, val);
if (pic->err) {
printf("macroexpand error: %s\n", pic_errmsg(pic));
abort();
}
v = pic_apply(pic, proc, pic_nil_value());
if (pic->err) {
printf("macroexpand error: %s\n", pic_errmsg(pic));
abort();
}
pic_try {
v = pic_eval(pic, val);
} pic_catch {
pic_errorf(pic, "macroexpand error: %s", pic_errmsg(pic));
}
assert(pic_proc_p(v));
mac = macro_new(pic, pic_proc_ptr(v), NULL);
@ -441,7 +423,7 @@ macroexpand(pic_state *pic, pic_value expr, struct pic_senv *senv)
/* macro */
if ((e = xh_get_int(pic->macros, tag)) != NULL) {
pic_value v;
pic_value v, args;
struct pic_macro *mac;
#if DEBUG
@ -452,19 +434,17 @@ macroexpand(pic_state *pic, pic_value expr, struct pic_senv *senv)
mac = (struct pic_macro *)e->val;
if (mac->senv == NULL) { /* legacy macro */
v = pic_apply(pic, mac->proc, pic_cdr(pic, expr));
if (pic->err) {
printf("macroexpand error: %s\n", pic_errmsg(pic));
abort();
}
}
else {
v = pic_apply_argv(pic, mac->proc, 3, expr, pic_obj_value(senv), pic_obj_value(mac->senv));
if (pic->err) {
printf("macroexpand error: %s\n", pic_errmsg(pic));
abort();
}
}
args = pic_cdr(pic, expr);
}
else {
args = pic_list3(pic, expr, pic_obj_value(senv), pic_obj_value(mac->senv));
}
pic_try {
v = pic_apply(pic, mac->proc, args);
} pic_catch {
pic_errorf(pic, "macroexpand error: %s", pic_errmsg(pic));
}
pic_gc_arena_restore(pic, ai);
pic_gc_protect(pic, v);