move macroexpander to codegen.c
This commit is contained in:
Yuichi Nishiwaki
parent
85e8d1511b
commit
cf66d600bb
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@ -4,6 +4,347 @@
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#include "picrin.h"
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/**
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* macro expander
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*/
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static pic_sym *
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lookup(pic_state PIC_UNUSED(*pic), pic_value var, struct pic_env *env)
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{
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xh_entry *e;
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assert(pic_var_p(var));
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while (env != NULL) {
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if ((e = xh_get_ptr(&env->map, pic_ptr(var))) != NULL) {
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return xh_val(e, pic_sym *);
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}
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env = env->up;
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}
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return NULL;
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}
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static pic_sym *
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resolve(pic_state *pic, pic_value var, struct pic_env *env)
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{
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pic_sym *uid;
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assert(pic_var_p(var));
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assert(env != NULL);
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while ((uid = lookup(pic, var, env)) == NULL) {
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if (pic_sym_p(var)) {
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break;
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}
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env = pic_id_ptr(var)->env;
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var = pic_id_ptr(var)->var;
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}
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if (uid == NULL) {
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while (env->up != NULL) {
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env = env->up;
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}
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uid = pic_add_variable(pic, env, var);
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}
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return uid;
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}
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static void
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define_macro(pic_state *pic, pic_sym *uid, struct pic_proc *mac)
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{
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pic_dict_set(pic, pic->macros, uid, pic_obj_value(mac));
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}
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static struct pic_proc *
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find_macro(pic_state *pic, pic_sym *uid)
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{
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if (! pic_dict_has(pic, pic->macros, uid)) {
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return NULL;
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}
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return pic_proc_ptr(pic_dict_ref(pic, pic->macros, uid));
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}
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static pic_value expand(pic_state *, pic_value, struct pic_env *, pic_value);
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static pic_value expand_lambda(pic_state *, pic_value, struct pic_env *);
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static pic_value
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expand_var(pic_state *pic, pic_value var, struct pic_env *env)
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{
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return pic_obj_value(resolve(pic, var, env));
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}
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static pic_value
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expand_quote(pic_state *pic, pic_value expr)
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{
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return pic_cons(pic, pic_obj_value(pic->uQUOTE), pic_cdr(pic, expr));
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}
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static pic_value
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expand_list(pic_state *pic, pic_value obj, struct pic_env *env, pic_value deferred)
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{
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size_t ai = pic_gc_arena_preserve(pic);
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pic_value x, head, tail;
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if (pic_pair_p(obj)) {
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head = expand(pic, pic_car(pic, obj), env, deferred);
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tail = expand_list(pic, pic_cdr(pic, obj), env, deferred);
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x = pic_cons(pic, head, tail);
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} else {
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x = expand(pic, obj, env, deferred);
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}
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pic_gc_arena_restore(pic, ai);
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pic_gc_protect(pic, x);
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return x;
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}
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static pic_value
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expand_defer(pic_state *pic, pic_value expr, pic_value deferred)
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{
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pic_value skel = pic_list1(pic, pic_invalid_value()); /* (#<invalid>) */
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pic_set_car(pic, deferred, pic_acons(pic, expr, skel, pic_car(pic, deferred)));
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return skel;
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}
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static void
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expand_deferred(pic_state *pic, pic_value deferred, struct pic_env *env)
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{
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pic_value defer, val, src, dst, it;
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deferred = pic_car(pic, deferred);
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pic_for_each (defer, pic_reverse(pic, deferred), it) {
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src = pic_car(pic, defer);
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dst = pic_cdr(pic, defer);
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val = expand_lambda(pic, src, env);
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/* copy */
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pic_set_car(pic, dst, pic_car(pic, val));
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pic_set_cdr(pic, dst, pic_cdr(pic, val));
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}
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}
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static pic_value
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expand_lambda(pic_state *pic, pic_value expr, struct pic_env *env)
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{
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pic_value formal, body;
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struct pic_env *in;
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pic_value a, deferred;
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if (pic_length(pic, expr) < 2) {
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pic_errorf(pic, "syntax error");
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}
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in = pic_make_env(pic, env);
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for (a = pic_cadr(pic, expr); pic_pair_p(a); a = pic_cdr(pic, a)) {
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pic_value var = pic_car(pic, a);
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if (! pic_var_p(var)) {
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pic_errorf(pic, "syntax error");
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}
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pic_add_variable(pic, in, var);
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}
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if (pic_var_p(a)) {
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pic_add_variable(pic, in, a);
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}
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else if (! pic_nil_p(a)) {
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pic_errorf(pic, "syntax error");
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}
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deferred = pic_list1(pic, pic_nil_value());
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formal = expand_list(pic, pic_cadr(pic, expr), in, deferred);
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body = expand_list(pic, pic_cddr(pic, expr), in, deferred);
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expand_deferred(pic, deferred, in);
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return pic_cons(pic, pic_obj_value(pic->uLAMBDA), pic_cons(pic, formal, body));
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}
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static pic_value
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expand_define(pic_state *pic, pic_value expr, struct pic_env *env, pic_value deferred)
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{
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pic_sym *uid;
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pic_value var, val;
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while (pic_length(pic, expr) >= 2 && pic_pair_p(pic_cadr(pic, expr))) {
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var = pic_car(pic, pic_cadr(pic, expr));
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val = pic_cdr(pic, pic_cadr(pic, expr));
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expr = pic_list3(pic, pic_obj_value(pic->uDEFINE), var, pic_cons(pic, pic_obj_value(pic->sLAMBDA), pic_cons(pic, val, pic_cddr(pic, expr))));
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}
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if (pic_length(pic, expr) != 3) {
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pic_errorf(pic, "syntax error");
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}
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var = pic_cadr(pic, expr);
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if (! pic_var_p(var)) {
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pic_errorf(pic, "binding to non-variable object");
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}
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if ((uid = pic_find_variable(pic, env, var)) == NULL) {
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uid = pic_add_variable(pic, env, var);
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}
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val = expand(pic, pic_list_ref(pic, expr, 2), env, deferred);
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return pic_list3(pic, pic_obj_value(pic->uDEFINE), pic_obj_value(uid), val);
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}
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static pic_value
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expand_defmacro(pic_state *pic, pic_value expr, struct pic_env *env)
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{
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pic_value var, val;
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pic_sym *uid;
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if (pic_length(pic, expr) != 3) {
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pic_errorf(pic, "syntax error");
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}
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var = pic_cadr(pic, expr);
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if (! pic_var_p(var)) {
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pic_errorf(pic, "binding to non-variable object");
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}
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if ((uid = pic_find_variable(pic, env, var)) == NULL) {
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uid = pic_add_variable(pic, env, var);
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} else {
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pic_warnf(pic, "redefining syntax variable: ~s", var);
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}
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val = pic_cadr(pic, pic_cdr(pic, expr));
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pic_try {
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val = pic_eval(pic, val, env);
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} pic_catch {
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pic_errorf(pic, "expand error while definition: %s", pic_errmsg(pic));
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}
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if (! pic_proc_p(val)) {
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pic_errorf(pic, "macro definition \"~s\" evaluates to non-procedure object", var);
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}
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define_macro(pic, uid, pic_proc_ptr(val));
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return pic_undef_value();
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}
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static pic_value
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expand_macro(pic_state *pic, struct pic_proc *mac, pic_value expr, struct pic_env *env)
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{
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pic_value v;
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#if DEBUG
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puts("before expand-1:");
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pic_debug(pic, expr);
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puts("");
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#endif
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pic_try {
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v = pic_apply2(pic, mac, expr, pic_obj_value(env));
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} pic_catch {
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pic_errorf(pic, "expand error while application: %s", pic_errmsg(pic));
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}
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#if DEBUG
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puts("after expand-1:");
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pic_debug(pic, v);
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puts("");
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#endif
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return v;
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}
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static pic_value
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expand_node(pic_state *pic, pic_value expr, struct pic_env *env, pic_value deferred)
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{
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switch (pic_type(expr)) {
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case PIC_TT_ID:
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case PIC_TT_SYMBOL: {
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return expand_var(pic, expr, env);
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}
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case PIC_TT_PAIR: {
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struct pic_proc *mac;
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if (! pic_list_p(expr)) {
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pic_errorf(pic, "cannot expand improper list: ~s", expr);
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}
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if (pic_var_p(pic_car(pic, expr))) {
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pic_sym *functor;
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functor = resolve(pic, pic_car(pic, expr), env);
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if (functor == pic->uDEFINE_MACRO) {
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return expand_defmacro(pic, expr, env);
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}
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else if (functor == pic->uLAMBDA) {
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return expand_defer(pic, expr, deferred);
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}
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else if (functor == pic->uDEFINE) {
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return expand_define(pic, expr, env, deferred);
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}
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else if (functor == pic->uQUOTE) {
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return expand_quote(pic, expr);
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}
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if ((mac = find_macro(pic, functor)) != NULL) {
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return expand_node(pic, expand_macro(pic, mac, expr, env), env, deferred);
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}
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}
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return expand_list(pic, expr, env, deferred);
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}
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default:
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return expr;
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}
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}
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static pic_value
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expand(pic_state *pic, pic_value expr, struct pic_env *env, pic_value deferred)
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{
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size_t ai = pic_gc_arena_preserve(pic);
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pic_value v;
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#if DEBUG
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printf("[expand] expanding... ");
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pic_debug(pic, expr);
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puts("");
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#endif
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v = expand_node(pic, expr, env, deferred);
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pic_gc_arena_restore(pic, ai);
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pic_gc_protect(pic, v);
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return v;
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}
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pic_value
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pic_expand(pic_state *pic, pic_value expr, struct pic_env *env)
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{
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pic_value v, deferred;
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#if DEBUG
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puts("before expand:");
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pic_debug(pic, expr);
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puts("");
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#endif
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deferred = pic_list1(pic, pic_nil_value());
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v = expand(pic, expr, env, deferred);
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expand_deferred(pic, deferred, env);
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#if DEBUG
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puts("after expand:");
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pic_debug(pic, v);
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puts("");
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#endif
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return v;
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}
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typedef xvect_t(pic_sym *) xvect;
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#define xv_push_sym(v, x) xv_push(pic_sym *, (v), (x))
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@ -36,6 +36,7 @@ pic_sym *pic_add_variable(pic_state *, struct pic_env *, pic_value);
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void pic_put_variable(pic_state *, struct pic_env *, pic_value, pic_sym *);
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pic_sym *pic_find_variable(pic_state *, struct pic_env *, pic_value);
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bool pic_var_p(pic_value);
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pic_sym *pic_var_name(pic_state *, pic_value);
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#if defined(__cplusplus)
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@ -4,7 +4,7 @@
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#include "picrin.h"
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static bool
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bool
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pic_var_p(pic_value obj)
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{
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return pic_sym_p(obj) || pic_id_p(obj);
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@ -57,46 +57,6 @@ pic_uniq(pic_state *pic, pic_value var)
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return pic_intern(pic, str);
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}
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static pic_sym *
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lookup(pic_state PIC_UNUSED(*pic), pic_value var, struct pic_env *env)
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{
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xh_entry *e;
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assert(pic_var_p(var));
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while (env != NULL) {
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if ((e = xh_get_ptr(&env->map, pic_ptr(var))) != NULL) {
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return xh_val(e, pic_sym *);
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}
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env = env->up;
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}
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return NULL;
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}
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static pic_sym *
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resolve(pic_state *pic, pic_value var, struct pic_env *env)
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{
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pic_sym *uid;
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assert(pic_var_p(var));
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assert(env != NULL);
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while ((uid = lookup(pic, var, env)) == NULL) {
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if (pic_sym_p(var)) {
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break;
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}
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env = pic_id_ptr(var)->env;
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var = pic_id_ptr(var)->var;
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}
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if (uid == NULL) {
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while (env->up != NULL) {
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env = env->up;
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}
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uid = pic_add_variable(pic, env, var);
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}
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return uid;
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}
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pic_sym *
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pic_add_variable(pic_state *pic, struct pic_env *env, pic_value var)
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{
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@ -132,335 +92,6 @@ pic_find_variable(pic_state PIC_UNUSED(*pic), struct pic_env *env, pic_value var
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return xh_val(e, pic_sym *);
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}
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static void
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define_macro(pic_state *pic, pic_sym *uid, struct pic_proc *mac)
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{
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pic_dict_set(pic, pic->macros, uid, pic_obj_value(mac));
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}
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static struct pic_proc *
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find_macro(pic_state *pic, pic_sym *uid)
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{
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if (! pic_dict_has(pic, pic->macros, uid)) {
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return NULL;
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}
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return pic_proc_ptr(pic_dict_ref(pic, pic->macros, uid));
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}
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static pic_value expand(pic_state *, pic_value, struct pic_env *, pic_value);
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static pic_value expand_lambda(pic_state *, pic_value, struct pic_env *);
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static pic_value
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expand_var(pic_state *pic, pic_value var, struct pic_env *env)
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{
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return pic_obj_value(resolve(pic, var, env));
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}
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static pic_value
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expand_quote(pic_state *pic, pic_value expr)
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{
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return pic_cons(pic, pic_obj_value(pic->uQUOTE), pic_cdr(pic, expr));
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}
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static pic_value
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expand_list(pic_state *pic, pic_value obj, struct pic_env *env, pic_value deferred)
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{
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size_t ai = pic_gc_arena_preserve(pic);
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pic_value x, head, tail;
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if (pic_pair_p(obj)) {
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head = expand(pic, pic_car(pic, obj), env, deferred);
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tail = expand_list(pic, pic_cdr(pic, obj), env, deferred);
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x = pic_cons(pic, head, tail);
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} else {
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x = expand(pic, obj, env, deferred);
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}
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pic_gc_arena_restore(pic, ai);
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pic_gc_protect(pic, x);
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return x;
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}
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static pic_value
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expand_defer(pic_state *pic, pic_value expr, pic_value deferred)
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{
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pic_value skel = pic_list1(pic, pic_invalid_value()); /* (#<invalid>) */
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pic_set_car(pic, deferred, pic_acons(pic, expr, skel, pic_car(pic, deferred)));
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return skel;
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}
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static void
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expand_deferred(pic_state *pic, pic_value deferred, struct pic_env *env)
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{
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pic_value defer, val, src, dst, it;
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deferred = pic_car(pic, deferred);
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pic_for_each (defer, pic_reverse(pic, deferred), it) {
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src = pic_car(pic, defer);
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dst = pic_cdr(pic, defer);
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val = expand_lambda(pic, src, env);
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/* copy */
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pic_set_car(pic, dst, pic_car(pic, val));
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pic_set_cdr(pic, dst, pic_cdr(pic, val));
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}
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}
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static pic_value
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expand_lambda(pic_state *pic, pic_value expr, struct pic_env *env)
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{
|
||||
pic_value formal, body;
|
||||
struct pic_env *in;
|
||||
pic_value a, deferred;
|
||||
|
||||
if (pic_length(pic, expr) < 2) {
|
||||
pic_errorf(pic, "syntax error");
|
||||
}
|
||||
|
||||
in = pic_make_env(pic, env);
|
||||
|
||||
for (a = pic_cadr(pic, expr); pic_pair_p(a); a = pic_cdr(pic, a)) {
|
||||
pic_value var = pic_car(pic, a);
|
||||
|
||||
if (! pic_var_p(var)) {
|
||||
pic_errorf(pic, "syntax error");
|
||||
}
|
||||
pic_add_variable(pic, in, var);
|
||||
}
|
||||
if (pic_var_p(a)) {
|
||||
pic_add_variable(pic, in, a);
|
||||
}
|
||||
else if (! pic_nil_p(a)) {
|
||||
pic_errorf(pic, "syntax error");
|
||||
}
|
||||
|
||||
deferred = pic_list1(pic, pic_nil_value());
|
||||
|
||||
formal = expand_list(pic, pic_cadr(pic, expr), in, deferred);
|
||||
body = expand_list(pic, pic_cddr(pic, expr), in, deferred);
|
||||
|
||||
expand_deferred(pic, deferred, in);
|
||||
|
||||
return pic_cons(pic, pic_obj_value(pic->uLAMBDA), pic_cons(pic, formal, body));
|
||||
}
|
||||
|
||||
static pic_value
|
||||
expand_define(pic_state *pic, pic_value expr, struct pic_env *env, pic_value deferred)
|
||||
{
|
||||
pic_sym *uid;
|
||||
pic_value var, val;
|
||||
|
||||
while (pic_length(pic, expr) >= 2 && pic_pair_p(pic_cadr(pic, expr))) {
|
||||
var = pic_car(pic, pic_cadr(pic, expr));
|
||||
val = pic_cdr(pic, pic_cadr(pic, expr));
|
||||
|
||||
expr = pic_list3(pic, pic_obj_value(pic->uDEFINE), var, pic_cons(pic, pic_obj_value(pic->sLAMBDA), pic_cons(pic, val, pic_cddr(pic, expr))));
|
||||
}
|
||||
|
||||
if (pic_length(pic, expr) != 3) {
|
||||
pic_errorf(pic, "syntax error");
|
||||
}
|
||||
|
||||
var = pic_cadr(pic, expr);
|
||||
if (! pic_var_p(var)) {
|
||||
pic_errorf(pic, "binding to non-variable object");
|
||||
}
|
||||
if ((uid = pic_find_variable(pic, env, var)) == NULL) {
|
||||
uid = pic_add_variable(pic, env, var);
|
||||
}
|
||||
val = expand(pic, pic_list_ref(pic, expr, 2), env, deferred);
|
||||
|
||||
return pic_list3(pic, pic_obj_value(pic->uDEFINE), pic_obj_value(uid), val);
|
||||
}
|
||||
|
||||
static pic_value
|
||||
expand_defmacro(pic_state *pic, pic_value expr, struct pic_env *env)
|
||||
{
|
||||
pic_value var, val;
|
||||
pic_sym *uid;
|
||||
|
||||
if (pic_length(pic, expr) != 3) {
|
||||
pic_errorf(pic, "syntax error");
|
||||
}
|
||||
|
||||
var = pic_cadr(pic, expr);
|
||||
if (! pic_var_p(var)) {
|
||||
pic_errorf(pic, "binding to non-variable object");
|
||||
}
|
||||
if ((uid = pic_find_variable(pic, env, var)) == NULL) {
|
||||
uid = pic_add_variable(pic, env, var);
|
||||
} else {
|
||||
pic_warnf(pic, "redefining syntax variable: ~s", var);
|
||||
}
|
||||
|
||||
val = pic_cadr(pic, pic_cdr(pic, expr));
|
||||
|
||||
pic_try {
|
||||
val = pic_eval(pic, val, env);
|
||||
} pic_catch {
|
||||
pic_errorf(pic, "expand error while definition: %s", pic_errmsg(pic));
|
||||
}
|
||||
|
||||
if (! pic_proc_p(val)) {
|
||||
pic_errorf(pic, "macro definition \"~s\" evaluates to non-procedure object", var);
|
||||
}
|
||||
|
||||
define_macro(pic, uid, pic_proc_ptr(val));
|
||||
|
||||
return pic_undef_value();
|
||||
}
|
||||
|
||||
static pic_value
|
||||
expand_macro(pic_state *pic, struct pic_proc *mac, pic_value expr, struct pic_env *env)
|
||||
{
|
||||
pic_value v;
|
||||
|
||||
#if DEBUG
|
||||
puts("before expand-1:");
|
||||
pic_debug(pic, expr);
|
||||
puts("");
|
||||
#endif
|
||||
|
||||
pic_try {
|
||||
v = pic_apply2(pic, mac, expr, pic_obj_value(env));
|
||||
} pic_catch {
|
||||
pic_errorf(pic, "expand error while application: %s", pic_errmsg(pic));
|
||||
}
|
||||
|
||||
#if DEBUG
|
||||
puts("after expand-1:");
|
||||
pic_debug(pic, v);
|
||||
puts("");
|
||||
#endif
|
||||
|
||||
return v;
|
||||
}
|
||||
|
||||
static pic_value
|
||||
expand_node(pic_state *pic, pic_value expr, struct pic_env *env, pic_value deferred)
|
||||
{
|
||||
switch (pic_type(expr)) {
|
||||
case PIC_TT_ID:
|
||||
case PIC_TT_SYMBOL: {
|
||||
return expand_var(pic, expr, env);
|
||||
}
|
||||
case PIC_TT_PAIR: {
|
||||
struct pic_proc *mac;
|
||||
|
||||
if (! pic_list_p(expr)) {
|
||||
pic_errorf(pic, "cannot expand improper list: ~s", expr);
|
||||
}
|
||||
|
||||
if (pic_var_p(pic_car(pic, expr))) {
|
||||
pic_sym *functor;
|
||||
|
||||
functor = resolve(pic, pic_car(pic, expr), env);
|
||||
|
||||
if (functor == pic->uDEFINE_MACRO) {
|
||||
return expand_defmacro(pic, expr, env);
|
||||
}
|
||||
else if (functor == pic->uLAMBDA) {
|
||||
return expand_defer(pic, expr, deferred);
|
||||
}
|
||||
else if (functor == pic->uDEFINE) {
|
||||
return expand_define(pic, expr, env, deferred);
|
||||
}
|
||||
else if (functor == pic->uQUOTE) {
|
||||
return expand_quote(pic, expr);
|
||||
}
|
||||
|
||||
if ((mac = find_macro(pic, functor)) != NULL) {
|
||||
return expand_node(pic, expand_macro(pic, mac, expr, env), env, deferred);
|
||||
}
|
||||
}
|
||||
return expand_list(pic, expr, env, deferred);
|
||||
}
|
||||
default:
|
||||
return expr;
|
||||
}
|
||||
}
|
||||
|
||||
static pic_value
|
||||
expand(pic_state *pic, pic_value expr, struct pic_env *env, pic_value deferred)
|
||||
{
|
||||
size_t ai = pic_gc_arena_preserve(pic);
|
||||
pic_value v;
|
||||
|
||||
#if DEBUG
|
||||
printf("[expand] expanding... ");
|
||||
pic_debug(pic, expr);
|
||||
puts("");
|
||||
#endif
|
||||
|
||||
v = expand_node(pic, expr, env, deferred);
|
||||
|
||||
pic_gc_arena_restore(pic, ai);
|
||||
pic_gc_protect(pic, v);
|
||||
return v;
|
||||
}
|
||||
|
||||
pic_value
|
||||
pic_expand(pic_state *pic, pic_value expr, struct pic_env *env)
|
||||
{
|
||||
pic_value v, deferred;
|
||||
|
||||
#if DEBUG
|
||||
puts("before expand:");
|
||||
pic_debug(pic, expr);
|
||||
puts("");
|
||||
#endif
|
||||
|
||||
deferred = pic_list1(pic, pic_nil_value());
|
||||
|
||||
v = expand(pic, expr, env, deferred);
|
||||
|
||||
expand_deferred(pic, deferred, env);
|
||||
|
||||
#if DEBUG
|
||||
puts("after expand:");
|
||||
pic_debug(pic, v);
|
||||
puts("");
|
||||
#endif
|
||||
|
||||
return v;
|
||||
}
|
||||
|
||||
static pic_value
|
||||
defmacro_call(pic_state *pic)
|
||||
{
|
||||
struct pic_proc *self = pic_get_proc(pic);
|
||||
pic_value args, tmp, proc;
|
||||
|
||||
pic_get_args(pic, "oo", &args, &tmp);
|
||||
|
||||
proc = pic_attr_ref(pic, pic_obj_value(self), "@@transformer");
|
||||
|
||||
return pic_apply_trampoline(pic, pic_proc_ptr(proc), pic_cdr(pic, args));
|
||||
}
|
||||
|
||||
void
|
||||
pic_defmacro(pic_state *pic, pic_sym *name, pic_sym *id, pic_func_t func)
|
||||
{
|
||||
struct pic_proc *proc, *trans;
|
||||
|
||||
trans = pic_make_proc(pic, func, pic_symbol_name(pic, name));
|
||||
|
||||
pic_put_variable(pic, pic->lib->env, pic_obj_value(name), id);
|
||||
|
||||
proc = pic_make_proc(pic, defmacro_call, "defmacro_call");
|
||||
pic_attr_set(pic, pic_obj_value(proc), "@@transformer", pic_obj_value(trans));
|
||||
|
||||
/* symbol registration */
|
||||
define_macro(pic, id, proc);
|
||||
|
||||
/* auto export! */
|
||||
pic_export(pic, name);
|
||||
}
|
||||
|
||||
static pic_value
|
||||
pic_macro_identifier_p(pic_state *pic)
|
||||
{
|
||||
|
|
@ -536,7 +167,7 @@ pic_macro_variable_eq_p(pic_state *pic)
|
|||
|
||||
id1 = pic_id_ptr(var1);
|
||||
id2 = pic_id_ptr(var2);
|
||||
return pic_bool_value(resolve(pic, id1->var, id1->env) == resolve(pic, id2->var, id2->env));
|
||||
return pic_bool_value(pic_eq_p(pic_expand(pic, id1->var, id1->env), pic_expand(pic, id2->var, id2->env)));
|
||||
}
|
||||
return pic_false_value();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -499,6 +499,38 @@ pic_defvar(pic_state *pic, const char *name, pic_value init, struct pic_proc *co
|
|||
pic_define(pic, name, pic_obj_value(pic_make_var(pic, init, conv)));
|
||||
}
|
||||
|
||||
static pic_value
|
||||
defmacro_call(pic_state *pic)
|
||||
{
|
||||
struct pic_proc *self = pic_get_proc(pic);
|
||||
pic_value args, tmp, proc;
|
||||
|
||||
pic_get_args(pic, "oo", &args, &tmp);
|
||||
|
||||
proc = pic_attr_ref(pic, pic_obj_value(self), "@@transformer");
|
||||
|
||||
return pic_apply_trampoline(pic, pic_proc_ptr(proc), pic_cdr(pic, args));
|
||||
}
|
||||
|
||||
void
|
||||
pic_defmacro(pic_state *pic, pic_sym *name, pic_sym *id, pic_func_t func)
|
||||
{
|
||||
struct pic_proc *proc, *trans;
|
||||
|
||||
trans = pic_make_proc(pic, func, pic_symbol_name(pic, name));
|
||||
|
||||
pic_put_variable(pic, pic->lib->env, pic_obj_value(name), id);
|
||||
|
||||
proc = pic_make_proc(pic, defmacro_call, "defmacro_call");
|
||||
pic_attr_set(pic, pic_obj_value(proc), "@@transformer", pic_obj_value(trans));
|
||||
|
||||
/* symbol registration */
|
||||
pic_dict_set(pic, pic->macros, id, pic_obj_value(proc));
|
||||
|
||||
/* auto export! */
|
||||
pic_export(pic, name);
|
||||
}
|
||||
|
||||
static void
|
||||
vm_push_cxt(pic_state *pic)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue