uCBQN/src/ns.c
2021-10-01 20:08:03 +03:00

193 lines
5.0 KiB
C

#include "core.h"
#include "ns.h"
#include "utils/mut.h"
void m_nsDesc(Body* body, bool imm, u8 ty, B nameList, B varIDs, B exported) { // consumes nameList
if (!isArr(varIDs) || !isArr(exported)) thrM("Bad namespace description information");
usz ia = a(varIDs)->ia;
if (ia!=a(exported)->ia) thrM("Bad namespace description information");
i32 off = (ty==0?0:ty==1?2:3) + (imm?0:3);
i32 vam = ia+off;
i32 actualVam = body->varAm;
// if (vam != body->varAm) thrM("Bad namespace description information"); // arg remapping makes body->varAm unrelated to named variable count
NSDesc* r = mm_alloc(fsizeof(NSDesc, expIDs, i32, actualVam), t_nsDesc);
r->nameList = nameList;
r->varAm = vam;
SGetU(varIDs)
SGetU(exported)
for (i32 i = 0; i < actualVam; i++) {
body->varIDs[i] = -1;
r ->expIDs[i] = -1;
}
for (usz i = 0; i < ia; i++) {
i32 cid = o2i(GetU(varIDs, i));
bool cexp = o2b(GetU(exported, i));
body->varIDs[i+off] = cid;
r->expIDs[i+off] = cexp? cid : -1;
}
// printf("def %p:\n", r);
// for (usz i = 0; i < vam; i++) printf(" %d: %d %d\n", i, body->varIDs[i], r->expIDs[i]);
body->nsDesc = r;
}
B m_ns(Scope* sc, NSDesc* desc) { // consumes both
NS* r = mm_alloc(sizeof(NS), t_ns);
r->desc = desc;
r->nameList = r->desc->nameList;
r->sc = sc;
return tag(r,NSP_TAG);
}
B ns_getU(B ns, B cNL, i32 nameID) { VTY(ns, t_ns);
NS* n = c(NS, ns);
NSDesc* d = n->desc;
i32 dVarAm = d->varAm;
if (nameID<0) thrM("Cannot read key with special name");
assert((u64)nameID < a(cNL)->ia);
B dNL = d->nameList;
if (cNL.u != dNL.u) {
B cName = IGetU(cNL, nameID);
SGetU(dNL)
for (i32 i = 0; i < dVarAm; i++) {
i32 dID = d->expIDs[i];
if (dID>=0 && equal(GetU(dNL, dID), cName)) return n->sc->vars[i];
}
} else {
for (i32 i = 0; i < dVarAm; i++) {
if (d->expIDs[i]==nameID) return n->sc->vars[i];
}
}
thrM("No key found");
}
B ns_qgetU(B ns, B cNL, i32 nameID) { VTY(ns, t_ns); // TODO somehow merge impl with ns_getU
NS* n = c(NS, ns);
NSDesc* d = n->desc;
i32 dVarAm = d->varAm;
if (nameID<0) return bi_N;
assert((u64)nameID < a(cNL)->ia);
B dNL = d->nameList;
if (cNL.u != dNL.u) {
B cName = IGetU(cNL, nameID);
SGetU(dNL)
for (i32 i = 0; i < dVarAm; i++) {
i32 dID = d->expIDs[i];
if (dID>=0 && equal(GetU(dNL, dID), cName)) return n->sc->vars[i];
}
} else {
for (i32 i = 0; i < dVarAm; i++) {
if (d->expIDs[i]==nameID) return n->sc->vars[i];
}
}
return bi_N;
}
B ns_getNU(B ns, B name, bool thrEmpty) { VTY(ns, t_ns);
NS* n = c(NS, ns);
NSDesc* d = n->desc;
i32 dVarAm = d->varAm;
B dNL = d->nameList;
SGetU(dNL)
for (i32 i = 0; i < dVarAm; i++) {
i32 dID = d->expIDs[i];
if (dID>=0 && equal(GetU(dNL, dID), name)) return n->sc->vars[i];
}
if (thrEmpty) thrM("No key found");
return bi_N;
}
void ns_set(B ns, B name, B val) { VTY(ns, t_ns);
NS* n = c(NS, ns);
NSDesc* d = n->desc;
i32 dVarAm = d->varAm;
B dNL = d->nameList;
SGetU(dNL)
for (i32 i = 0; i < dVarAm; i++) {
i32 dID = d->expIDs[i];
if (dID>=0 && equal(GetU(dNL, dID), name)) {
dec(n->sc->vars[i]);
n->sc->vars[i] = val;
return;
}
}
thrM("No key found");
}
i32 ns_pos(B ns, B name) { VTY(ns, t_ns);
Body* b = c(NS, ns)->sc->body;
B nameList = c(NS, ns)->desc->nameList;
i32 bVarAm = b->varAm;
SGetU(nameList)
for (i32 i = 0; i < bVarAm; i++) {
i32 id = b->varIDs[i];
if (id>=0) if (equal(GetU(nameList, id), name)) { dec(name); return i; }
}
thrM("No key found");
}
B ns_nameList(NSDesc* d) {
return d->nameList;
}
DEF_FREE(ns) {
NS* c = (NS*)x;
ptr_decR(c->desc);
ptr_dec(c->sc);
}
static void ns_visit(Value* x) {
NS* c = (NS*)x;
mm_visitP(c->desc);
mm_visitP(c->sc);
}
static void ns_print(B x) {
putchar('{');
NSDesc* desc = c(NS,x)->desc;
Scope* sc = c(NS,x)->sc;
i32 am = desc->varAm;
B nl = desc->nameList; SGetU(nl)
bool first = true;
for (i32 i = 0; i < am; i++) {
i32 id = desc->expIDs[i];
if (id>=0) {
if (first) first=false;
else printf("");
printRaw(GetU(nl, id));
printf("");
print(sc->vars[i]);
}
}
putchar('}');
}
B nsFmt(B x) { // consumes
B s = emptyCVec();
ACHR('{');
NSDesc* desc = c(NS,x)->desc;
i32 am = desc->varAm;
B nl = desc->nameList; SGetU(nl)
bool first = true;
for (i32 i = 0; i < am; i++) {
i32 id = desc->expIDs[i];
if (id>=0) {
if (first) first=false;
else ACHR(U'');
AFMT("%R", GetU(nl, id));
}
}
AU("⇐}");
dec(x);
return s;
}
DEF_FREE(nsDesc) { decR(((NSDesc*)x)->nameList); }
static void nsDesc_visit(Value* x) { mm_visit(((NSDesc*)x)->nameList); }
static void nsDesc_print(B x) { printf("(namespace description)"); }
void ns_init() {
TIi(t_ns,freeO) = ns_freeO; TIi(t_nsDesc,freeO) = nsDesc_freeO;
TIi(t_ns,freeF) = ns_freeF; TIi(t_nsDesc,freeF) = nsDesc_freeF;
TIi(t_ns,visit) = ns_visit; TIi(t_nsDesc,visit) = nsDesc_visit;
TIi(t_ns,print) = ns_print; TIi(t_nsDesc,print) = nsDesc_print;
}