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96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/* j/6/sift.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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/* boilerplate
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*/
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u2_ho_jet
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j2_mcj(Pt6, ut, sift)[];
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u2_noun // transfer
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j2_mc(Pt6, ut, sift)(
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u2_noun cor) // retain
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{
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u2_noun sut, ref, van;
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if ( (u2_no == u2_cr_mean(cor, u2_cv_sam, &ref,
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u2_cv_con, &van,
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0)) ||
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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_mcy(Pt6, ut, sift)(van, sut, ref);
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}
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}
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u2_weak // transfer
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j2_mci(Pt6, ut, sift)(
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u2_noun van, // retain
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u2_noun sut, // 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), "sift");
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if ( u2_none == hoc ) {
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c3_assert(!"register sift");
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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), u2_cv_sam, u2k(ref), 0);
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if ( (u2_none == j2_mcj(Pt6, ut, sift)[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, sift)[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, sift)(u2_noun van, // retain
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u2_noun sut, // retain
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u2_noun ref) // retain
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{
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return u2k(ref);
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}
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u2_weak
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j2_mck(Pt6, ut, sift)(
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u2_noun cor)
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{
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u2_noun sut, ref, van;
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if ( (u2_no == u2_cr_mean(cor, u2_cv_sam, &ref,
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u2_cv_con, &van,
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0)) ||
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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 u2nc
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(u2k(sut), 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, sift)[] = {
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{ ".2", c3__hevy,
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j2_mc(Pt6, ut, sift),
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Tier6_b_memo,
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u2_none, u2_none,
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j2_mck(Pt6, ut, sift), c3__sift
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},
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{ }
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};
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