Merge branch 'refactor-codegen2'
This commit is contained in:
commit
2906076f84
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@ -39,6 +39,9 @@ pic_value pic_make_list(pic_state *, int, pic_value);
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pic_nil_p(tmp) ? false : ((var = pic_car(pic, tmp)), true); \
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tmp = pic_cdr(pic, tmp))
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#define pic_push(pic, item, place) (place = pic_cons(pic, item, place))
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#define pic_pop(pic, place) (place = pic_cdr(pic, place))
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int pic_length(pic_state *, pic_value);
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pic_value pic_reverse(pic_state *, pic_value);
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pic_value pic_append(pic_state *, pic_value, pic_value);
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@ -15,15 +15,9 @@
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# error enable PIC_NONE_IS_FALSE
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#endif
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enum {
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LOCAL,
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CAPTURED,
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};
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typedef struct analyze_scope {
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bool varg;
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xvect args, locals; /* rest args variable is counted as a local */
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xhash *captures;
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xvect args, locals, captures; /* rest args variable is counted as a local */
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struct analyze_scope *up;
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} analyze_scope;
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@ -97,7 +91,6 @@ new_analyze_state(pic_state *pic)
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global_tbl = pic->global_tbl;
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for (xh_begin(global_tbl, &it); ! xh_isend(&it); xh_next(&it)) {
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xv_push(&state->scope->locals, &it.e->key);
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xh_put_int(state->scope->captures, (long)&it.e->key, LOCAL);
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}
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return state;
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@ -142,12 +135,11 @@ push_scope(analyze_state *state, pic_value formals)
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pic_state *pic = state->pic;
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analyze_scope *scope;
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bool varg;
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xvect args, locals;
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size_t i;
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pic_sym *var;
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xvect args, locals, captures;
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xv_init(&args, sizeof(pic_sym));
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xv_init(&locals, sizeof(pic_sym));
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xv_init(&captures, sizeof(pic_sym));
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if (analyze_args(pic, formals, &varg, &args, &locals)) {
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scope = (analyze_scope *)pic_alloc(pic, sizeof(analyze_scope));
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@ -155,17 +147,7 @@ push_scope(analyze_state *state, pic_value formals)
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scope->varg = varg;
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scope->args = args;
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scope->locals = locals;
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scope->captures = xh_new_int();
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for (i = 0; i < scope->args.size; ++i) {
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var = xv_get(&scope->args, i);
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xh_put_int(scope->captures, *var, LOCAL);
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}
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for (i = 0; i < scope->locals.size; ++i) {
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var = xv_get(&scope->locals, i);
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xh_put_int(scope->captures, *var, LOCAL);
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}
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scope->captures = captures;
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state->scope = scope;
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@ -186,7 +168,7 @@ pop_scope(analyze_state *state)
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scope = state->scope;
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xv_destroy(&scope->args);
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xv_destroy(&scope->locals);
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xh_destroy(scope->captures);
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xv_destroy(&scope->captures);
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scope = scope->up;
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pic_free(state->pic, state->scope);
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@ -214,6 +196,23 @@ lookup_scope(analyze_scope *scope, pic_sym sym)
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return false;
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}
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static void
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capture_var(analyze_scope *scope, pic_sym sym)
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{
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pic_sym *var;
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size_t i;
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for (i = 0; i < scope->captures.size; ++i) {
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var = xv_get(&scope->captures, i);
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if (*var == sym) {
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break;
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}
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}
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if (i == scope->captures.size) {
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xv_push(&scope->captures, &sym);
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}
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}
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static int
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find_var(analyze_state *state, pic_sym sym)
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{
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@ -223,7 +222,7 @@ find_var(analyze_state *state, pic_sym sym)
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while (scope) {
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if (lookup_scope(scope, sym)) {
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if (depth > 0) {
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xh_put_int(scope->captures, sym, CAPTURED); /* mark dirty */
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capture_var(scope, sym);
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}
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return depth;
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}
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@ -245,7 +244,6 @@ define_var(analyze_state *state, pic_sym sym)
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}
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xv_push(&scope->locals, &sym);
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xh_put_int(scope->captures, sym, LOCAL);
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}
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static pic_value
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@ -419,8 +417,6 @@ analyze_quote(analyze_state *state, pic_value obj)
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return obj;
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}
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#define pic_push(pic, item, place) (place = pic_cons(pic, item, place))
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static pic_value
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analyze_lambda(analyze_state *state, pic_value obj)
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{
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@ -437,7 +433,6 @@ analyze_lambda(analyze_state *state, pic_value obj)
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analyze_scope *scope = state->scope;
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pic_sym *var;
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size_t i;
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xh_iter it;
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args = pic_nil_value();
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for (i = scope->args.size; i > 0; --i) {
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@ -459,10 +454,9 @@ analyze_lambda(analyze_state *state, pic_value obj)
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}
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captures = pic_nil_value();
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for (xh_begin(scope->captures, &it); ! xh_isend(&it); xh_next(&it)) {
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if (it.e->val == CAPTURED) {
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pic_push(pic, pic_sym_value((long)it.e->key), captures);
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}
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for (i = scope->captures.size; i > 0; --i) {
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var = xv_get(&scope->captures, i - 1);
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pic_push(pic, pic_sym_value(*var), captures);
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}
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pop_scope(state);
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