338 lines
10 KiB
C
338 lines
10 KiB
C
#include "core.h"
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#include "vm.h"
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#include "ns.h"
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#include "utils/utf.h"
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#include "utils/file.h"
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#include "utils/time.h"
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static B replPath;
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static Scope* gsc;
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static bool init = false;
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static void repl_init() {
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if (init) return;
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cbqn_init();
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replPath = m_str8l("."); gc_add(replPath);
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Body* body = m_nnsDesc();
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B ns = m_nns(body);
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gsc = ptr_inc(c(NS, ns)->sc); gc_add(tag(gsc,OBJ_TAG));
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ptr_dec(v(ns));
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init = true;
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}
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static B gsc_exec_inline(B src, B path, B args) {
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Block* block = bqn_compSc(src, path, args, gsc, true);
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ptr_dec(gsc->body); // redirect new errors to the newly executed code; initial scope had 0 vars, so this is safe
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gsc->body = ptr_inc(block->bodies[0]);
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B r = execBlockInline(block, gsc);
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ptr_dec(block);
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return r;
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}
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static bool isCmd(char* s, char** e, const char* cmd) {
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while (*cmd) {
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if (*cmd==' ' && *s==0) { *e = s; return true; }
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if (*s!=*cmd || *s==0) return false;
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s++; cmd++;
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}
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*e = s;
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return true;
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}
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int main(int argc, char* argv[]) {
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bool startREPL = argc==1;
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bool silentREPL = false;
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bool execStdin = false;
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if (!startREPL) {
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i32 i = 1;
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while (i!=argc) {
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char* carg = argv[i];
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if (carg[0]!='-') break;
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if (carg[1]==0) { execStdin=true; i++; break; }
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i++;
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if (carg[1]=='-') {
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if (!strcmp(carg, "--help")) {
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printf(
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"Usage: %s [options] [file.bqn [arguments]]\n"
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"Options:\n"
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"-f file: execute the contents of the file with all further arguments as •args\n"
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"-e code: execute the argument as BQN\n"
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"-p code: execute the argument as BQN and print its result pretty-printed\n"
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"-o code: execute the argument as BQN and print its raw result\n"
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"-M num : set maximum heap size to num megabytes\n"
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"-r : start the REPL after executing all arguments\n"
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"-s : start a silent REPL\n"
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, argv[0]);
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exit(0);
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} else {
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printf("%s: Unknown option: %s\n", argv[0], carg);
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exit(1);
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}
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} else {
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carg++;
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char c;
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while ((c = *carg++)) {
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switch(c) { default: fprintf(stderr, "%s: Unknown option: -%c\n", argv[0], c); exit(1);
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#define REQARG(X) if(*carg) { fprintf(stderr, "%s: -%s must end the option\n", argv[0], #X); exit(1); } if (i==argc) { fprintf(stderr, "%s: -%s requires an argument\n", argv[0], #X); exit(1); }
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case 'f': repl_init(); REQARG(f); goto execFile;
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case 'e': { repl_init(); REQARG(e);
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dec(gsc_exec_inline(fromUTF8l(argv[i++]), m_str8l("(-e)"), emptySVec()));
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break;
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}
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case 'L': { repl_init(); break; } // just initialize. mostly for perf testing
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case 'p': { repl_init(); REQARG(p);
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B r = bqn_fmt(gsc_exec_inline(fromUTF8l(argv[i++]), m_str8l("(-p)"), emptySVec()));
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printRaw(r); dec(r);
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printf("\n");
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break;
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}
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case 'o': { repl_init(); REQARG(o);
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B r = gsc_exec_inline(fromUTF8l(argv[i++]), m_str8l("(-o)"), emptySVec());
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printRaw(r); dec(r);
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printf("\n");
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break;
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}
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case 'M': { REQARG(M);
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char* str = argv[i++];
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u64 am = 0;
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while (*str) {
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char c = *str++;
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if (c<'0' | c>'9') { printf("%s: -M: Argument not a number\n", argv[0]); exit(1); }
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if (am>1ULL<<48) { printf("%s: -M: Too large\n", argv[0]); exit(1); }
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am = am*10 + c-48;
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}
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mm_heapMax = am*1024*1024;
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break;
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}
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#ifdef PERF_TEST
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case 'R': { repl_init(); REQARG(R);
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B path = fromUTF8l(argv[i++]);
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B lines = path_lines(path);
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usz ia = a(lines)->ia;
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SGet(lines)
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for (u64 i = 0; i < ia; i++) {
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dec(gsc_exec_inline(Get(lines, i), inc(replPath), emptySVec()));
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}
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break;
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}
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#endif
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case 'r': { startREPL=true; break; }
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case 's': { startREPL=true; silentREPL=true; break; }
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}
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}
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}
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}
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execFile:
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if (i!=argc || execStdin) {
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repl_init();
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B src;
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if (!execStdin) src = fromUTF8l(argv[i++]);
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B args;
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if (i==argc) {
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args = emptySVec();
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} else {
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M_HARR(ap, argc-i)
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for (usz j = 0; j < argc-i; j++) HARR_ADD(ap, j, fromUTF8l(argv[i+j]));
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args = HARR_FV(ap);
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}
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B execRes;
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if (execStdin) {
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execRes = gsc_exec_inline(fromUTF8a(stream_bytes(stdin)), m_str8l("(-)"), args);
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} else {
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execRes = bqn_execFile(src, args);
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}
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dec(execRes);
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#ifdef HEAP_VERIFY
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heapVerify();
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#endif
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gc_forceGC();
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}
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}
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if (startREPL) {
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repl_init();
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while (CATCH) {
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printf("Error: "); printErrMsg(thrownMsg); putchar('\n');
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vm_pst(envCurr+1, envStart+envPrevHeight);
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freeThrown();
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#ifdef HEAP_VERIFY
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heapVerify();
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#endif
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gc_maybeGC();
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}
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while (true) { // exit by evaluating an empty expression
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char* ln = NULL;
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size_t gl = 0;
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if (!silentREPL) printf(" ");
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i64 read = getline(&ln, &gl, stdin);
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if (read<=0 || ln[0]==0) { if(!silentREPL) putchar('\n'); break; }
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if (ln[0]==10) { cont: free(ln); continue; }
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if (ln[read-1]==10) ln[--read] = 0;
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B code;
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int output; // 0-no; 1-formatter; 2-internal
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i32 time = 0;
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if (ln[0] == ')') {
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char* cmdS = ln+1;
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char* cmdE;
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if (isCmd(cmdS, &cmdE, "ex ")) {
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B path = fromUTF8l(cmdE);
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code = path_chars(path);
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output = 0;
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} else if (isCmd(cmdS, &cmdE, "t ") || isCmd(cmdS, &cmdE, "time ")) {
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code = fromUTF8l(cmdE);
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time = -1;
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output = 0;
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} else if (isCmd(cmdS, &cmdE, "t:") || isCmd(cmdS, &cmdE, "time:")) {
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char* repE = cmdE;
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i64 am = 0;
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while (*repE>='0' & *repE<='9') {
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am = am*10 + (*repE - '0');
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repE++;
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}
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if (repE==cmdE) { printf("time command not given repetition count\n"); goto cont; }
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if (am==0) { printf("repetition count was zero\n"); goto cont; }
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code = fromUTF8l(repE);
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time = am;
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output = 0;
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} else if (isCmd(cmdS, &cmdE, "mem ")) {
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bool sizes = 0;
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bool types = 0;
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char c;
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while ((c=*(cmdE++)) != 0) {
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if (c=='t') types=1;
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if (c=='s') sizes=1;
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}
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heap_printInfo(sizes, types);
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goto cont;
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} else if (isCmd(cmdS, &cmdE, "erase ")) {
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char* name = cmdE;
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i64 len = strlen(name);
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ScopeExt* e = gsc->ext;
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if (e!=NULL) {
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i32 am = e->varAm;
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for (i32 i = 0; i < am; i++) {
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B c = e->vars[i+am];
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if (a(c)->ia != len) continue;
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SGetU(c)
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bool ok = true;
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for (i32 j = 0; j < len; j++) ok&= o2cu(GetU(c, j))==name[j];
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if (ok) {
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B val = e->vars[i];
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e->vars[i] = bi_noVar;
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dec(val);
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if (!gc_depth) gc_forceGC();
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goto cont;
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}
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}
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}
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printf("No such variable found\n");
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goto cont;
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} else if (isCmd(cmdS, &cmdE, "vars")) {
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B r = listVars(gsc);
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if (q_N(r)) {
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printf("Couldn't list variables\n");
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} else {
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usz ia = a(r)->ia;
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B* rp = harr_ptr(r);
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for (usz i = 0; i < ia; i++) {
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if (i!=0) printf(", ");
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printRaw(rp[i]);
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}
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putchar('\n');
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}
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goto cont;
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} else if (isCmd(cmdS, &cmdE, "gc ")) {
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#if ENABLE_GC
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if (0==*cmdE) {
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if (gc_depth!=0) {
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printf("GC is disabled, but forcibly GCing anyway\n");
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gc_enable();
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gc_forceGC();
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gc_disable();
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} else {
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gc_forceGC();
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}
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} else if (strcmp(cmdE,"on")==0) {
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if (gc_depth==0) printf("GC already on\n");
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else if (gc_depth>1) printf("GC cannot be enabled\n");
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else {
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gc_enable();
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printf("GC enabled\n");
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}
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} else if (strcmp(cmdE,"off")==0) {
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if (gc_depth>0) printf("GC already off\n");
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else {
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gc_disable();
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printf("GC disabled\n");
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}
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} else printf("Unknown GC command\n");
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#else
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printf("Macro ENABLE_GC was false at compile-time, cannot GC\n");
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#endif
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goto cont;
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} else if (isCmd(cmdS, &cmdE, "internalPrint ")) {
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code = fromUTF8l(cmdE);
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output = 2;
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} else {
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printf("Unknown REPL command\n");
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goto cont;
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}
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} else {
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code = fromUTF8l(ln);
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output = 1;
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}
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Block* block = bqn_compSc(code, inc(replPath), emptySVec(), gsc, true);
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ptr_dec(gsc->body);
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gsc->body = ptr_inc(block->bodies[0]);
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B res;
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if (time) {
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f64 t;
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if (time==-1) {
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u64 sns = nsTime();
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res = execBlockInline(block, gsc);
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u64 ens = nsTime();
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t = ens-sns;
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} else {
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u64 sns = nsTime();
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for (i64 i = 0; i < time; i++) dec(execBlockInline(block, gsc));
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u64 ens = nsTime();
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t = (ens-sns)*1.0 / time;
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res = m_c32(0);
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}
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if (t<1e3) printf("%.5gns\n", t);
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else if (t<1e6) printf("%.4gus\n", t/1e3);
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else if (t<1e9) printf("%.4gms\n", t/1e6);
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else printf("%.5gs\n", t/1e9);
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} else {
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res = execBlockInline(block, gsc);
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}
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ptr_dec(block);
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if (output) {
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if (output!=2 && FORMATTER) {
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B resFmt = bqn_fmt(res);
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printRaw(resFmt); dec(resFmt);
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putchar('\n');
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} else {
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print(res); putchar('\n'); fflush(stdout);
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dec(res);
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}
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} else dec(res);
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#ifdef HEAP_VERIFY
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heapVerify();
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#endif
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gc_maybeGC();
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goto cont;
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}
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popCatch();
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}
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#ifdef HEAP_VERIFY
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heapVerify();
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#endif
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bqn_exit(0);
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#undef INIT
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}
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