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https://github.com/urbit/shrub.git
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307 lines
8.8 KiB
C
307 lines
8.8 KiB
C
/* j/6/cull.c
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**
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** This file is in the public domain.
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*/
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#include "all.h"
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#include "../pit.h"
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/* logic
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*/
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u2_noun
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j2_mcx(Pt6, ut, cull)(u2_noun, u2_noun, u2_bean, u2_atom, u2_noun);
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static u2_noun
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_cull_in(
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u2_noun van, // retain
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u2_noun sut, // retain
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u2_bean pol, // retain
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u2_atom axe, // retain
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u2_noun ref, // retain
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u2_noun now, // retain
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u2_noun lat, // retain
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u2_noun vil) // retain
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{
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u2_noun ret, p_sut, q_sut;
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if ( u2_no == u2du(sut) ) switch ( sut ) {
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default: return u2_cm_bail(c3__fail);
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case c3__noun: {
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u2_noun pyr = j2_mcy(Pt6, ut, repo)(van, sut);
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u2_noun yot = j2_mcx(Pt6, ut, cull)(van, pyr, pol, axe, ref);
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if ( u2_yes == u2_cr_sing(pyr, yot) ) {
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ret = u2k(sut);
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} else {
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ret = u2k(yot);
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}
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u2z(pyr);
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u2z(yot);
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break;
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}
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case c3__void: {
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ret = c3__void;
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}
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}
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else switch ( u2h(sut) ) {
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default: return u2_cm_bail(c3__fail);
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case c3__atom: {
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ret = c3__void;
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break;
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}
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case c3__bull: u2_cx_cell(u2t(sut), &p_sut, &q_sut);
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{
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u2_noun hic = j2_mcx(Pt6, ut, cull)
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(van, q_sut, pol, axe, ref);
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if ( u2_yes == u2_cr_sing(hic, q_sut) ) {
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ret = u2k(sut);
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} else {
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ret = j2_mby(Pt6, bull)(p_sut, hic);
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}
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u2z(hic);
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break;
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}
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case c3__cell: u2_cx_cell(u2t(sut), &p_sut, &q_sut);
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{
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u2_noun hub;
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if ( 2 == now ) {
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hub = j2_mcx(Pt6, ut, cull)(van, p_sut, pol, lat, ref);
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ret = j2_mby(Pt6, cell)(hub, q_sut);
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} else {
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hub = j2_mcx(Pt6, ut, cull)(van, q_sut, pol, lat, ref);
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ret = j2_mby(Pt6, cell)(p_sut, hub);
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}
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u2z(hub);
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break;
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}
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case c3__core: u2_cx_cell(u2t(sut), &p_sut, &q_sut);
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{
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if ( 3 != now ) {
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ret = u2k(sut);
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} else {
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u2_noun hub = j2_mcx(Pt6, ut, cull)
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(van, p_sut, pol, lat, ref);
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ret = j2_mby(Pt6, core)(hub, q_sut);
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u2z(hub);
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}
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break;
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}
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case c3__face: u2_cx_cell(u2t(sut), &p_sut, &q_sut);
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{
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u2_noun hic = j2_mcx(Pt6, ut, cull)
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(van, q_sut, pol, axe, ref);
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if ( u2_yes == u2_cr_sing(hic, q_sut) ) {
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ret = u2k(sut);
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} else {
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ret = j2_mby(Pt6, face)(p_sut, hic);
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}
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u2z(hic);
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break;
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}
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case c3__fork: u2_cx_cell(u2t(sut), &p_sut, &q_sut);
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{
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if ( u2_yes == j2_mcc(Pt4, in, has)(vil, sut) ) {
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return c3__void;
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} else {
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u2_noun zoc = j2_mcc(Pt4, in, put)(vil, sut);
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u2_noun sin = _cull_in
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(van, p_sut, pol, axe, ref, now, lat, zoc);
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u2_noun dex = _cull_in
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(van, q_sut, pol, axe, ref, now, lat, zoc);
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ret = j2_mby(Pt6, fork)(sin, dex);
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u2z(sin);
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u2z(dex);
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u2z(zoc);
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return ret;
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}
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}
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case c3__cube:
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case c3__hold:
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{
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u2_noun pyr = j2_mcy(Pt6, ut, repo)(van, sut);
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u2_noun yot = _cull_in(van, pyr, pol, axe, ref, now, lat, vil);
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if ( u2_yes == u2_cr_sing(pyr, yot) ) {
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if ( c3__void == pyr ) {
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ret = c3__void;
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}
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else ret = u2k(sut);
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} else {
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ret = u2k(yot);
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}
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u2z(pyr);
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u2z(yot);
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break;
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}
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}
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u2z(lat);
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return ret;
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}
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u2_noun // transfer
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j2_mcx(Pt6, ut, cull)(
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u2_noun van, // retain
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u2_noun sut, // retain
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u2_bean pol, // retain
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u2_atom axe, // retain
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u2_noun ref) // retain
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{
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if ( 1 == axe ) {
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if ( u2_yes == pol ) {
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return j2_mcy(Pt6, ut, fuse)(van, sut, ref);
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} else {
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return j2_mcy(Pt6, ut, crop)(van, sut, ref);
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}
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} else {
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u2_atom now = j2_mbc(Pt3, cap)(axe);
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u2_atom lat = j2_mbc(Pt3, mas)(axe);
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return _cull_in(van, sut, pol, axe, ref, now, lat, u2_nul);
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}
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}
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/* boilerplate
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*/
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u2_ho_jet
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j2_mcj(Pt6, ut, cull)[];
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u2_noun // transfer
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j2_mc(Pt6, ut, cull)(
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u2_noun cor) // retain
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{
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u2_noun sut, axe, pol, ref, van;
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if ( (u2_no == u2_cr_mean(cor, u2_cv_sam_2, &pol,
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u2_cv_sam_6, &axe,
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u2_cv_sam_7, &ref,
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u2_cv_con, &van, 0)) ||
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(u2_no == u2ud(axe)) ||
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(u2_none == (sut = u2_cr_at(u2_cv_sam, van))) )
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{
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return u2_cm_bail(c3__fail);
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} else {
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return j2_mcx(Pt6, ut, cull)(van, sut, pol, axe, ref);
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}
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}
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u2_weak // transfer
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j2_mci(Pt6, ut, cull)(
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u2_noun van, // retain
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u2_noun sut, // retain
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u2_bean pol, // retain
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u2_atom axe, // retain
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u2_noun ref) // retain
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{
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u2_weak hoc = u2_cj_look(u2k(van), "cull");
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if ( u2_none == hoc ) {
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c3_assert(!"register cull");
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return u2_none;
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} else {
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u2_weak von = u2_ci_molt(u2k(van), u2_cv_sam, u2k(sut), 0);
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u2_weak gat = u2_cn_nock_on(von, hoc);
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u2_weak cor = u2_ci_molt(u2k(gat),
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u2_cv_sam_2, pol,
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u2_cv_sam_6, u2k(axe),
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u2_cv_sam_7, u2k(ref),
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0);
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if ( (u2_none == j2_mcj(Pt6, ut, cull)[0].xip) ) {
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u2_noun xip = u2_cj_find(u2k(cor));
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c3_assert(u2_none != xip);
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j2_mcj(Pt6, ut, cull)[0].xip = xip;
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}
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u2z(gat);
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return cor;
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}
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}
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u2_noun // transfer
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j2_mcy(Pt6, ut, cull)(
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u2_noun van, // retain
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u2_noun sut, // retain
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u2_bean pol, // retain
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u2_noun axe, // retain
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u2_noun ref) // retain
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{
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u2_ho_jet *jet_j = &j2_mcj(Pt6, ut, cull)[0];
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if ( (jet_j->sat_s & u2_jet_live) && !(jet_j->sat_s & u2_jet_test) ) {
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if ( !(jet_j->sat_s & u2_jet_memo) ) {
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return j2_mcx(Pt6, ut, cull)(van, sut, pol, axe, ref);
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}
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else {
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c3_m fun_m = c3__cull;
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u2_noun pro = u2_ch_find_4(fun_m, sut, pol, axe, ref);
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if ( u2_none != pro ) {
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return pro;
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}
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else {
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pro = j2_mcx(Pt6, ut, cull)(van, sut, pol, axe, ref);
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return u2_ch_save_4(fun_m, sut, pol, axe, ref, pro);
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}
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}
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}
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else {
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u2_noun cor, fol, pro;
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cor = j2_mci(Pt6, ut, cull)(van, sut, pol, axe, ref);
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fol = u2h(cor);
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pro = u2_ho_use(jet_j, cor, fol);
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if ( u2_none == pro ) return u2_cm_bail(c3__fail);
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u2z(cor);
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u2z(fol);
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return pro;
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}
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}
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u2_weak
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j2_mck(Pt6, ut, cull)(
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u2_noun cor)
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{
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u2_noun sut, pol, axe, ref, van;
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if ( (u2_no == u2_cr_mean(cor, u2_cv_sam_2, &pol,
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u2_cv_sam_6, &axe,
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u2_cv_sam_7, &ref,
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u2_cv_con, &van,
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0)) ||
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(pol > 1) ||
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(u2_none == (sut = u2_cr_at(u2_cv_sam, van))) )
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{
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return u2_none;
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} else {
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return u2nq
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(u2k(sut), pol, u2k(axe), u2k(ref));
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}
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}
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/* structures
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*/
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u2_ho_jet
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j2_mcj(Pt6, ut, cull)[] = {
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{ ".2", c3__hevy,
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j2_mc(Pt6, ut, cull),
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Tier6_b_memo,
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u2_none, u2_none,
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j2_mck(Pt6, ut, cull), c3__cull,
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},
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{ }
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};
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