static value_t read_vector(value_t label, u_int32_t closer) { value_t v=the_empty_vector, elt; u_int32_t i=0; PUSH(v); if (label != UNBOUND) ptrhash_put(&readstate->backrefs, (void*)label, (void*)v); while (peek() != closer) { if (ios_eof(F)) lerror(ParseError, "read: unexpected end of input"); if (i >= vector_size(v)) { v = Stack[SP-1] = vector_grow(v); if (label != UNBOUND) ptrhash_put(&readstate->backrefs, (void*)label, (void*)v); } elt = do_read_sexpr(UNBOUND); v = Stack[SP-1]; vector_elt(v,i) = elt; i++; } take(); if (i > 0) vector_setsize(v, i); return POP(); }
static void eq_union(htable_t *table, value_t a, value_t b, value_t c, value_t cb) { value_t ca = (c==NIL ? a : c); if (cb != NIL) ptrhash_put(table, (void*)cb, (void*)ca); ptrhash_put(table, (void*)a, (void*)ca); ptrhash_put(table, (void*)b, (void*)ca); }
// build a list of conses. this is complicated by the fact that all conses // can move whenever a new cons is allocated. we have to refer to every cons // through a handle to a relocatable pointer (i.e. a pointer on the stack). static void read_list(value_t *pval, value_t label) { value_t c, *pc; u_int32_t t; PUSH(NIL); pc = &Stack[SP-1]; // to keep track of current cons cell t = peek(); while (t != TOK_CLOSE) { if (ios_eof(F)) lerror(ParseError, "read: unexpected end of input"); c = mk_cons(); car_(c) = cdr_(c) = NIL; if (iscons(*pc)) { cdr_(*pc) = c; } else { *pval = c; if (label != UNBOUND) ptrhash_put(&readstate->backrefs, (void*)label, (void*)c); } *pc = c; c = do_read_sexpr(UNBOUND); // must be on separate lines due to car_(*pc) = c; // undefined evaluation order t = peek(); if (t == TOK_DOT) { take(); c = do_read_sexpr(UNBOUND); cdr_(*pc) = c; t = peek(); if (ios_eof(F)) lerror(ParseError, "read: unexpected end of input"); if (t != TOK_CLOSE) lerror(ParseError, "read: expected ')'"); } } take(); (void)POP(); }
// label is the backreference we'd like to fix up with this read static value_t do_read_sexpr(value_t label) { value_t v, sym, oldtokval, *head; value_t *pv; u_int32_t t; char c; t = peek(); take(); switch (t) { case TOK_CLOSE: lerror(ParseError, "read: unexpected ')'"); case TOK_CLOSEB: lerror(ParseError, "read: unexpected ']'"); case TOK_DOT: lerror(ParseError, "read: unexpected '.'"); case TOK_SYM: case TOK_NUM: return tokval; case TOK_COMMA: head = , goto listwith; case TOK_COMMAAT: head = &COMMAAT; goto listwith; case TOK_COMMADOT: head = &COMMADOT; goto listwith; case TOK_BQ: head = &BACKQUOTE; goto listwith; case TOK_QUOTE: head = "E; listwith: v = cons_reserve(2); car_(v) = *head; cdr_(v) = tagptr(((cons_t*)ptr(v))+1, TAG_CONS); car_(cdr_(v)) = cdr_(cdr_(v)) = NIL; PUSH(v); if (label != UNBOUND) ptrhash_put(&readstate->backrefs, (void*)label, (void*)v); v = do_read_sexpr(UNBOUND); car_(cdr_(Stack[SP-1])) = v; return POP(); case TOK_SHARPQUOTE: // femtoLisp doesn't need symbol-function, so #' does nothing return do_read_sexpr(label); case TOK_OPEN: PUSH(NIL); read_list(&Stack[SP-1], label); return POP(); case TOK_SHARPSYM: sym = tokval; if (sym == tsym || sym == Tsym) return FL_T; else if (sym == fsym || sym == Fsym) return FL_F; // constructor notation c = nextchar(); if (c != '(') { take(); lerrorf(ParseError, "read: expected argument list for %s", symbol_name(tokval)); } PUSH(NIL); read_list(&Stack[SP-1], UNBOUND); if (sym == vu8sym) { sym = arraysym; Stack[SP-1] = fl_cons(uint8sym, Stack[SP-1]); } else if (sym == fnsym) { sym = FUNCTION; } v = symbol_value(sym); if (v == UNBOUND) fl_raise(fl_list2(UnboundError, sym)); return fl_apply(v, POP()); case TOK_OPENB: return read_vector(label, TOK_CLOSEB); case TOK_SHARPOPEN: return read_vector(label, TOK_CLOSE); case TOK_SHARPDOT: // eval-when-read // evaluated expressions can refer to existing backreferences, but they // cannot see pending labels. in other words: // (... #2=#.#0# ... ) OK // (... #2=#.(#2#) ... ) DO NOT WANT sym = do_read_sexpr(UNBOUND); if (issymbol(sym)) { v = symbol_value(sym); if (v == UNBOUND) fl_raise(fl_list2(UnboundError, sym)); return v; } return fl_toplevel_eval(sym); case TOK_LABEL: // create backreference label if (ptrhash_has(&readstate->backrefs, (void*)tokval)) lerrorf(ParseError, "read: label %ld redefined", numval(tokval)); oldtokval = tokval; v = do_read_sexpr(tokval); ptrhash_put(&readstate->backrefs, (void*)oldtokval, (void*)v); return v; case TOK_BACKREF: // look up backreference v = (value_t)ptrhash_get(&readstate->backrefs, (void*)tokval); if (v == (value_t)HT_NOTFOUND) lerrorf(ParseError, "read: undefined label %ld", numval(tokval)); return v; case TOK_GENSYM: pv = (value_t*)ptrhash_bp(&readstate->gensyms, (void*)tokval); if (*pv == (value_t)HT_NOTFOUND) *pv = fl_gensym(NULL, 0); return *pv; case TOK_DOUBLEQUOTE: return read_string(); } return FL_UNSPECIFIED; }
void jl_init_serializer(void) { htable_new(&ser_tag, 0); htable_new(&deser_tag, 0); htable_new(&fptr_to_id, 0); htable_new(&id_to_fptr, 0); htable_new(&backref_table, 50000); void *tags[] = { jl_symbol_type, jl_tag_kind, jl_bits_kind, jl_struct_kind, jl_func_kind, jl_tuple_type, jl_array_type, jl_expr_type, (void*)LongSymbol_tag, (void*)LongTuple_tag, (void*)LongExpr_tag, (void*)LiteralVal_tag, (void*)SmallInt64_tag, jl_methtable_type, jl_module_type, jl_lambda_info_type, jl_tvar_type, jl_null, jl_any_type, jl_symbol("Any"), jl_symbol("Array"), jl_symbol("TypeVar"), jl_symbol("FuncKind"), jl_symbol("Box"), lambda_sym, body_sym, return_sym, call_sym, colons_sym, null_sym, goto_ifnot_sym, assign_sym, jl_symbol("a"), jl_symbol("b"), jl_symbol("c"), jl_symbol("d"), jl_symbol("e"), jl_symbol("f"), jl_symbol("g"), jl_symbol("h"), jl_symbol("i"), jl_symbol("j"), jl_symbol("k"), jl_symbol("l"), jl_symbol("m"), jl_symbol("n"), jl_symbol("o"), jl_symbol("p"), jl_symbol("q"), jl_symbol("r"), jl_symbol("s"), jl_symbol("t"), jl_symbol("u"), jl_symbol("v"), jl_symbol("w"), jl_symbol("x"), jl_symbol("y"), jl_symbol("z"), jl_symbol("A"), jl_symbol("B"), jl_symbol("C"), jl_symbol("M"), jl_symbol("I"), jl_symbol("N"), jl_symbol("T"), jl_symbol("S"), jl_symbol("X"), jl_symbol("Y"), jl_symbol("add_int"), jl_symbol("sub_int"), jl_symbol("mul_int"), jl_symbol("add_float"), jl_symbol("sub_float"), jl_symbol("mul_float"), jl_symbol("unbox"), jl_symbol("unbox8"), jl_symbol("unbox16"), jl_symbol("unbox32"), jl_symbol("unbox64"), jl_symbol("box"), jl_symbol("boxf32"), jl_symbol("boxf64"), jl_symbol("boxsi32"), jl_symbol("boxsi64"), jl_symbol("eq_int"), jl_symbol("slt_int"), jl_symbol("sle_int"), jl_symbol("ne_int"), jl_symbol("arrayset"), jl_symbol("arrayref"), jl_symbol("convert"), jl_symbol("typeassert"), jl_symbol("getfield"), jl_symbol("_setfield"), jl_symbol("tupleref"), jl_symbol("tuplelen"), jl_symbol("apply_type"), jl_symbol("tuple"), jl_false, jl_true, jl_box_int32(0), jl_box_int32(1), jl_box_int32(2), jl_box_int32(3), jl_box_int32(4), jl_box_int32(5), jl_box_int32(6), jl_box_int32(7), jl_box_int32(8), jl_box_int32(9), jl_box_int32(10), jl_box_int32(11), jl_box_int32(12), jl_box_int32(13), jl_box_int32(14), jl_box_int32(15), jl_box_int32(16), jl_box_int32(17), jl_box_int32(18), jl_box_int32(19), jl_box_int32(20), jl_box_int32(21), jl_box_int32(22), jl_box_int32(23), jl_box_int32(24), jl_box_int32(25), jl_box_int32(26), jl_box_int32(27), jl_box_int32(28), jl_box_int32(29), jl_box_int32(30), jl_box_int32(31), jl_box_int32(32), #ifndef __LP64__ jl_box_int32(33), jl_box_int32(34), jl_box_int32(35), jl_box_int32(36), jl_box_int32(37), jl_box_int32(38), jl_box_int32(39), jl_box_int32(40), jl_box_int32(41), jl_box_int32(42), jl_box_int32(43), jl_box_int32(44), jl_box_int32(45), jl_box_int32(46), jl_box_int32(47), jl_box_int32(48), jl_box_int32(49), jl_box_int32(50), jl_box_int32(51), jl_box_int32(52), jl_box_int32(53), jl_box_int32(54), jl_box_int32(55), jl_box_int32(56), jl_box_int32(57), jl_box_int32(58), jl_box_int32(59), jl_box_int32(60), jl_box_int32(61), jl_box_int32(62), jl_box_int32(63), jl_box_int32(64), #endif jl_box_int64(0), jl_box_int64(1), jl_box_int64(2), jl_box_int64(3), jl_box_int64(4), jl_box_int64(5), jl_box_int64(6), jl_box_int64(7), jl_box_int64(8), jl_box_int64(9), jl_box_int64(10), jl_box_int64(11), jl_box_int64(12), jl_box_int64(13), jl_box_int64(14), jl_box_int64(15), jl_box_int64(16), jl_box_int64(17), jl_box_int64(18), jl_box_int64(19), jl_box_int64(20), jl_box_int64(21), jl_box_int64(22), jl_box_int64(23), jl_box_int64(24), jl_box_int64(25), jl_box_int64(26), jl_box_int64(27), jl_box_int64(28), jl_box_int64(29), jl_box_int64(30), jl_box_int64(31), jl_box_int64(32), #ifdef __LP64__ jl_box_int64(33), jl_box_int64(34), jl_box_int64(35), jl_box_int64(36), jl_box_int64(37), jl_box_int64(38), jl_box_int64(39), jl_box_int64(40), jl_box_int64(41), jl_box_int64(42), jl_box_int64(43), jl_box_int64(44), jl_box_int64(45), jl_box_int64(46), jl_box_int64(47), jl_box_int64(48), jl_box_int64(49), jl_box_int64(50), jl_box_int64(51), jl_box_int64(52), jl_box_int64(53), jl_box_int64(54), jl_box_int64(55), jl_box_int64(56), jl_box_int64(57), jl_box_int64(58), jl_box_int64(59), jl_box_int64(60), jl_box_int64(61), jl_box_int64(62), jl_box_int64(63), jl_box_int64(64), #endif jl_labelnode_type, jl_linenumbernode_type, jl_gotonode_type, jl_quotenode_type, jl_topnode_type, jl_type_type, jl_bottom_type, jl_pointer_type, jl_seq_type, jl_ntuple_type, jl_abstractarray_type, jl_box_type, jl_typector_type, jl_undef_type, jl_top_type, jl_any_func, jl_typename_type, jl_task_type, jl_union_kind, jl_function_type, jl_typetype_type, jl_typetype_tvar, jl_ANY_flag, jl_array_any_type, jl_intrinsic_type, jl_symbol_type->name, jl_pointer_type->name, jl_tag_kind->name, jl_union_kind->name, jl_bits_kind->name, jl_struct_kind->name, jl_func_kind->name, jl_array_type->name, jl_expr_type->name, jl_typename_type->name, jl_type_type->name, jl_methtable_type->name, jl_tvar_type->name, jl_seq_type->name, jl_ntuple_type->name, jl_abstractarray_type->name, jl_lambda_info_type->name, jl_module_type->name, jl_box_type->name, jl_typector_type->name, jl_intrinsic_type->name, jl_undef_type->name, jl_task_type->name, jl_labelnode_type->name, jl_linenumbernode_type->name, jl_gotonode_type->name, jl_quotenode_type->name, jl_topnode_type->name, jl_root_task, NULL }; ptrint_t i=2; while (tags[i-2] != NULL) { ptrhash_put(&ser_tag, tags[i-2], (void*)i); ptrhash_put(&deser_tag, (void*)i, tags[i-2]); i += 1; } assert(i <= Null_tag); VALUE_TAGS = (ptrint_t)ptrhash_get(&ser_tag, jl_null); void *fptrs[] = { jl_f_new_expr, jl_f_new_box, jl_f_throw, jl_f_is, jl_f_no_function, jl_f_typeof, jl_f_subtype, jl_f_isa, jl_f_typeassert, jl_f_apply, jl_f_top_eval, jl_f_isbound, jl_f_tuple, jl_f_tupleref, jl_f_tuplelen, jl_f_get_field, jl_f_set_field, jl_f_field_type, jl_f_arraylen, jl_f_arrayref, jl_f_arrayset, jl_f_arraysize, jl_f_instantiate_type, jl_f_convert_default, jl_f_convert_tuple, jl_trampoline, jl_f_new_struct_type, jl_f_new_struct_fields, jl_f_new_type_constructor, jl_f_new_tag_type, jl_f_new_tag_type_super, jl_f_new_bits_type, jl_f_def_macro, jl_f_typevar, jl_f_union, jl_f_methodexists, jl_f_applicable, jl_f_invoke, jl_apply_generic, jl_unprotect_stack, jl_f_task, jl_f_yieldto, jl_f_ctor_trampoline, NULL }; i=2; while (fptrs[i-2] != NULL) { ptrhash_put(&fptr_to_id, fptrs[i-2], (void*)i); ptrhash_put(&id_to_fptr, (void*)i, fptrs[i-2]); i += 1; } }
static jl_value_t *jl_deserialize_value(ios_t *s) { int pos = ios_pos(s); int32_t tag = read_uint8(s); if (tag == Null_tag) return NULL; if (tag == 0) { tag = read_uint8(s); return (jl_value_t*)ptrhash_get(&deser_tag, (void*)(ptrint_t)tag); } if (tag == BackRef_tag) { assert(tree_literal_values == NULL); ptrint_t offs = read_int32(s); void **bp = ptrhash_bp(&backref_table, (void*)(ptrint_t)offs); assert(*bp != HT_NOTFOUND); return (jl_value_t*)*bp; } jl_value_t *vtag=(jl_value_t*)ptrhash_get(&deser_tag,(void*)(ptrint_t)tag); if (tag >= VALUE_TAGS) { return vtag; } int usetable = (tree_literal_values == NULL); size_t i; if (vtag == (jl_value_t*)jl_tuple_type || vtag == (jl_value_t*)LongTuple_tag) { size_t len; if (vtag == (jl_value_t*)jl_tuple_type) len = read_uint8(s); else len = read_int32(s); jl_tuple_t *tu = jl_alloc_tuple_uninit(len); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)tu); for(i=0; i < len; i++) jl_tupleset(tu, i, jl_deserialize_value(s)); return (jl_value_t*)tu; } else if (vtag == (jl_value_t*)jl_symbol_type || vtag == (jl_value_t*)LongSymbol_tag) { size_t len; if (vtag == (jl_value_t*)jl_symbol_type) len = read_uint8(s); else len = read_int32(s); char *name = alloca(len+1); ios_read(s, name, len); name[len] = '\0'; jl_value_t *s = (jl_value_t*)jl_symbol(name); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, s); return s; } else if (vtag == (jl_value_t*)jl_array_type) { jl_value_t *aty = jl_deserialize_value(s); jl_value_t *elty = jl_tparam0(aty); int16_t ndims = jl_unbox_long(jl_tparam1(aty)); size_t *dims = alloca(ndims*sizeof(size_t)); for(i=0; i < ndims; i++) dims[i] = jl_unbox_long(jl_deserialize_value(s)); jl_array_t *a = jl_new_array_((jl_type_t*)aty, ndims, dims); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)a); if (jl_is_bits_type(elty)) { size_t tot = a->length * a->elsize; ios_read(s, a->data, tot); } else { for(i=0; i < a->length; i++) { ((jl_value_t**)a->data)[i] = jl_deserialize_value(s); } } return (jl_value_t*)a; } else if (vtag == (jl_value_t*)jl_expr_type || vtag == (jl_value_t*)LongExpr_tag) { size_t len; if (vtag == (jl_value_t*)jl_expr_type) len = read_uint8(s); else len = read_int32(s); jl_expr_t *e = jl_exprn((jl_sym_t*)jl_deserialize_value(s), len); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)e); e->etype = jl_deserialize_value(s); for(i=0; i < len; i++) { jl_cellset(e->args, i, jl_deserialize_value(s)); } return (jl_value_t*)e; } else if (vtag == (jl_value_t*)LiteralVal_tag) { return jl_cellref(tree_literal_values, read_uint16(s)); } else if (vtag == (jl_value_t*)jl_tvar_type) { jl_tvar_t *tv = (jl_tvar_t*)newobj((jl_type_t*)jl_tvar_type, 4); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, tv); tv->name = (jl_sym_t*)jl_deserialize_value(s); tv->lb = jl_deserialize_value(s); tv->ub = jl_deserialize_value(s); tv->bound = read_int8(s); return (jl_value_t*)tv; } else if (vtag == (jl_value_t*)jl_func_kind) { jl_value_t *ftype = jl_deserialize_value(s); jl_function_t *f = (jl_function_t*)newobj((jl_type_t*)ftype, 3); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, f); f->linfo = (jl_lambda_info_t*)jl_deserialize_value(s); f->env = jl_deserialize_value(s); f->fptr = jl_deserialize_fptr(s); if (f->fptr == NULL) { f->fptr = &jl_trampoline; } return (jl_value_t*)f; } else if (vtag == (jl_value_t*)jl_lambda_info_type) { jl_lambda_info_t *li = (jl_lambda_info_t*)newobj((jl_type_t*)jl_lambda_info_type, LAMBDA_INFO_NW); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, li); li->ast = jl_deserialize_value(s); li->sparams = (jl_tuple_t*)jl_deserialize_value(s); li->tfunc = jl_deserialize_value(s); li->name = (jl_sym_t*)jl_deserialize_value(s); li->specTypes = jl_deserialize_value(s); li->specializations = (jl_array_t*)jl_deserialize_value(s); li->inferred = jl_deserialize_value(s); li->file = jl_deserialize_value(s); li->line = jl_deserialize_value(s); li->module = (jl_module_t*)jl_deserialize_value(s); li->fptr = NULL; li->roots = NULL; li->functionObject = NULL; li->inInference = 0; li->inCompile = 0; li->unspecialized = NULL; return (jl_value_t*)li; } else if (vtag == (jl_value_t*)jl_module_type) { jl_module_t *m = jl_new_module(anonymous_sym); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, m); m->name = (jl_sym_t*)jl_deserialize_value(s); while (1) { jl_value_t *name = jl_deserialize_value(s); if (name == NULL) break; jl_binding_t *b = jl_get_binding_wr(m, (jl_sym_t*)name); b->value = jl_deserialize_value(s); b->type = (jl_type_t*)jl_deserialize_value(s); b->constp = read_int8(s); b->exportp = read_int8(s); } while (1) { jl_value_t *name = jl_deserialize_value(s); if (name == NULL) break; jl_set_expander(m, (jl_sym_t*)name, (jl_function_t*)jl_deserialize_value(s)); } return (jl_value_t*)m; } else if (vtag == (jl_value_t*)jl_methtable_type) { jl_methtable_t *mt = (jl_methtable_t*)allocobj(sizeof(jl_methtable_t)); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, mt); mt->type = (jl_type_t*)jl_methtable_type; mt->defs = jl_deserialize_methlist(s); mt->cache = jl_deserialize_methlist(s); mt->cache_1arg = (jl_array_t*)jl_deserialize_value(s); mt->max_args = read_int32(s); return (jl_value_t*)mt; } else if (vtag == (jl_value_t*)SmallInt64_tag) { jl_value_t *v = jl_box_int64(read_int32(s)); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, v); return v; } else if (vtag == (jl_value_t*)jl_bits_kind) { jl_bits_type_t *bt = (jl_bits_type_t*)jl_deserialize_value(s); int nby = bt->nbits/8; char *data = alloca(nby); ios_read(s, data, nby); jl_value_t *v=NULL; if (bt == jl_int32_type) v = jl_box_int32(*(int32_t*)data); else if (bt == jl_int64_type) v = jl_box_int64(*(int64_t*)data); else if (bt == jl_bool_type) v = jl_box_bool(*(int8_t*)data); else { switch (bt->nbits) { case 8: v = jl_box8 (bt, *(int8_t*) data); break; case 16: v = jl_box16(bt, *(int16_t*)data); break; case 32: v = jl_box32(bt, *(int32_t*)data); break; case 64: v = jl_box64(bt, *(int64_t*)data); break; default: v = (jl_value_t*)allocobj(sizeof(void*)+nby); v->type = (jl_type_t*)bt; memcpy(jl_bits_data(v), data, nby); } } if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, v); return v; } else if (vtag == (jl_value_t*)jl_struct_kind) { jl_struct_type_t *typ = (jl_struct_type_t*)jl_deserialize_value(s); if (typ == jl_struct_kind || typ == jl_bits_kind) return jl_deserialize_tag_type(s, typ, pos); size_t nf = typ->names->length; jl_value_t *v = jl_new_struct_uninit(typ); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, v); for(i=0; i < nf; i++) { ((jl_value_t**)v)[i+1] = jl_deserialize_value(s); } // TODO: put WeakRefs on the weak_refs list return v; } else if (vtag == (jl_value_t*)jl_tag_kind) { return jl_deserialize_tag_type(s, jl_tag_kind, pos); } assert(0); return NULL; }
static jl_value_t *jl_deserialize_tag_type(ios_t *s, jl_struct_type_t *kind, int pos) { if (kind == jl_struct_kind) { jl_struct_type_t *st = (jl_struct_type_t*)newobj((jl_type_t*)jl_struct_kind, STRUCT_TYPE_NW); st->instance = NULL; ptrhash_put(&backref_table, (void*)(ptrint_t)pos, st); st->name = (jl_typename_t*)jl_deserialize_value(s); st->parameters = (jl_tuple_t*)jl_deserialize_value(s); st->super = (jl_tag_type_t*)jl_deserialize_value(s); st->names = (jl_tuple_t*)jl_deserialize_value(s); st->types = (jl_tuple_t*)jl_deserialize_value(s); st->ctor_factory = jl_deserialize_value(s); st->env = jl_deserialize_value(s); st->linfo = (jl_lambda_info_t*)jl_deserialize_value(s); st->fptr = jl_deserialize_fptr(s); st->uid = read_int32(s);; if (st->name == jl_array_type->name) { // builtin types are not serialized, so their caches aren't // explicitly saved. so we reconstruct the caches of builtin // parametric types here. jl_cell_1d_push(tagtype_list, (jl_value_t*)st); } return (jl_value_t*)st; } else if (kind == jl_bits_kind) { int form = read_uint8(s); jl_bits_type_t *bt; if (form == 2) bt = jl_int32_type; else if (form == 3) bt = jl_bool_type; else if (form == 4) bt = jl_int64_type; else bt = (jl_bits_type_t*)newobj((jl_type_t*)jl_bits_kind, BITS_TYPE_NW); ptrhash_put(&backref_table, (void*)(ptrint_t)pos, bt); bt->name = (jl_typename_t*)jl_deserialize_value(s); bt->parameters = (jl_tuple_t*)jl_deserialize_value(s); size_t nbits = read_int32(s); bt->nbits = nbits; bt->bnbits = jl_box_int32(nbits); bt->fptr = NULL; bt->env = NULL; bt->linfo = NULL; bt->super = (jl_tag_type_t*)jl_deserialize_value(s); bt->uid = read_int32(s); if (bt->name == jl_pointer_type->name) { jl_cell_1d_push(tagtype_list, (jl_value_t*)bt); } return (jl_value_t*)bt; } else { assert(kind == jl_tag_kind); jl_tag_type_t *tt = (jl_tag_type_t*)newobj((jl_type_t*)jl_tag_kind, TAG_TYPE_NW); ptrhash_put(&backref_table, (void*)(ptrint_t)pos, tt); tt->name = (jl_typename_t*)jl_deserialize_value(s); tt->parameters = (jl_tuple_t*)jl_deserialize_value(s); tt->super = (jl_tag_type_t*)jl_deserialize_value(s); tt->fptr = NULL; tt->env = NULL; tt->linfo = NULL; if (tt->name == jl_type_type->name || tt->name == jl_seq_type->name || tt->name == jl_abstractarray_type->name) { jl_cell_1d_push(tagtype_list, (jl_value_t*)tt); } return (jl_value_t*)tt; } assert(0); return NULL; }
static void jl_serialize_value_(ios_t *s, jl_value_t *v) { if (v == NULL) { write_uint8(s, Null_tag); return; } void **bp = ptrhash_bp(&ser_tag, v); if (*bp != HT_NOTFOUND) { write_as_tag(s, (uint8_t)(ptrint_t)*bp); return; } if (tree_literal_values) { // compressing tree if (!is_ast_node(v)) { writetag(s, (jl_value_t*)LiteralVal_tag); write_uint16(s, literal_val_id(v)); return; } } else { bp = ptrhash_bp(&backref_table, v); if (*bp != HT_NOTFOUND) { write_uint8(s, BackRef_tag); write_int32(s, (ptrint_t)*bp); return; } ptrhash_put(&backref_table, v, (void*)(ptrint_t)ios_pos(s)); } size_t i; if (jl_is_tuple(v)) { size_t l = ((jl_tuple_t*)v)->length; if (l <= 255) { writetag(s, jl_tuple_type); write_uint8(s, (uint8_t)l); } else { writetag(s, (jl_value_t*)LongTuple_tag); write_int32(s, l); } for(i=0; i < l; i++) { jl_serialize_value(s, jl_tupleref(v, i)); } } else if (jl_is_symbol(v)) { size_t l = strlen(((jl_sym_t*)v)->name); if (l <= 255) { writetag(s, jl_symbol_type); write_uint8(s, (uint8_t)l); } else { writetag(s, (jl_value_t*)LongSymbol_tag); write_int32(s, l); } ios_write(s, ((jl_sym_t*)v)->name, l); } else if (jl_is_array(v)) { jl_array_t *ar = (jl_array_t*)v; writetag(s, (jl_value_t*)jl_array_type); jl_serialize_value(s, ar->type); jl_value_t *elty = jl_tparam0(ar->type); for (i=0; i < ar->ndims; i++) jl_serialize_value(s, jl_box_long(jl_array_dim(ar,i))); if (jl_is_bits_type(elty)) { size_t tot = ar->length * ar->elsize; ios_write(s, ar->data, tot); } else { for(i=0; i < ar->length; i++) { jl_serialize_value(s, jl_cellref(v, i)); } } } else if (jl_is_expr(v)) { jl_expr_t *e = (jl_expr_t*)v; size_t l = e->args->length; if (l <= 255) { writetag(s, jl_expr_type); write_uint8(s, (uint8_t)l); } else { writetag(s, (jl_value_t*)LongExpr_tag); write_int32(s, l); } jl_serialize_value(s, e->head); jl_serialize_value(s, e->etype); for(i=0; i < l; i++) { jl_serialize_value(s, jl_exprarg(e, i)); } } else if (jl_is_some_tag_type(v)) { jl_serialize_tag_type(s, v); } else if (jl_is_typevar(v)) { writetag(s, jl_tvar_type); jl_serialize_value(s, ((jl_tvar_t*)v)->name); jl_serialize_value(s, ((jl_tvar_t*)v)->lb); jl_serialize_value(s, ((jl_tvar_t*)v)->ub); write_int8(s, ((jl_tvar_t*)v)->bound); } else if (jl_is_function(v)) { writetag(s, jl_func_kind); jl_serialize_value(s, v->type); jl_function_t *f = (jl_function_t*)v; jl_serialize_value(s, (jl_value_t*)f->linfo); jl_serialize_value(s, f->env); if (f->linfo && f->linfo->ast && (jl_is_expr(f->linfo->ast) || jl_is_tuple(f->linfo->ast)) && f->fptr != &jl_trampoline) { write_int32(s, 0); } else { jl_serialize_fptr(s, f->fptr); } } else if (jl_is_lambda_info(v)) { writetag(s, jl_lambda_info_type); jl_lambda_info_t *li = (jl_lambda_info_t*)v; jl_serialize_value(s, li->ast); jl_serialize_value(s, (jl_value_t*)li->sparams); // don't save cached type info for code in the Base module, because // it might reference types in the old System module. if (li->module == jl_base_module) jl_serialize_value(s, (jl_value_t*)jl_null); else jl_serialize_value(s, (jl_value_t*)li->tfunc); jl_serialize_value(s, (jl_value_t*)li->name); jl_serialize_value(s, (jl_value_t*)li->specTypes); jl_serialize_value(s, (jl_value_t*)li->specializations); jl_serialize_value(s, (jl_value_t*)li->inferred); jl_serialize_value(s, (jl_value_t*)li->file); jl_serialize_value(s, (jl_value_t*)li->line); jl_serialize_value(s, (jl_value_t*)li->module); } else if (jl_typeis(v, jl_module_type)) { jl_serialize_module(s, (jl_module_t*)v); } else if (jl_typeis(v, jl_methtable_type)) { writetag(s, jl_methtable_type); jl_methtable_t *mt = (jl_methtable_t*)v; jl_serialize_methlist(s, mt->defs); jl_serialize_methlist(s, mt->cache); jl_serialize_value(s, mt->cache_1arg); write_int32(s, mt->max_args); } else if (jl_typeis(v, jl_task_type)) { jl_error("Task cannot be serialized"); } else { jl_value_t *t = (jl_value_t*)jl_typeof(v); if (jl_is_bits_type(t)) { void *data = jl_bits_data(v); if (t == (jl_value_t*)jl_int64_type && *(int64_t*)data >= S32_MIN && *(int64_t*)data <= S32_MAX) { writetag(s, (jl_value_t*)SmallInt64_tag); write_int32(s, (int32_t)*(int64_t*)data); } else { int nb = ((jl_bits_type_t*)t)->nbits; writetag(s, jl_bits_kind); jl_serialize_value(s, t); ios_write(s, data, nb/8); } } else if (jl_is_struct_type(t)) { writetag(s, jl_struct_kind); jl_serialize_value(s, t); size_t nf = ((jl_struct_type_t*)t)->names->length; size_t i; for(i=0; i < nf; i++) { jl_value_t *fld = ((jl_value_t**)v)[i+1]; jl_serialize_value(s, fld); } if (t == jl_idtable_type) { jl_cell_1d_push(idtable_list, v); } } else { assert(0); } } }
static jl_value_t *jl_deserialize_value(ios_t *s) { int pos = ios_pos(s); int32_t tag = read_uint8(s); if (tag == Null_tag) return NULL; if (tag == 0) { tag = read_uint8(s); jl_value_t *v = ptrhash_get(&deser_tag, (void*)(ptrint_t)tag); assert(v != HT_NOTFOUND); return v; } if (tag == BackRef_tag || tag == ShortBackRef_tag) { assert(tree_literal_values == NULL); ptrint_t offs = (tag == BackRef_tag) ? read_int32(s) : read_uint16(s); void **bp = ptrhash_bp(&backref_table, (void*)(ptrint_t)offs); assert(*bp != HT_NOTFOUND); return (jl_value_t*)*bp; } jl_value_t *vtag=(jl_value_t*)ptrhash_get(&deser_tag,(void*)(ptrint_t)tag); if (tag >= VALUE_TAGS) { return vtag; } int usetable = (tree_literal_values == NULL); size_t i; if (vtag == (jl_value_t*)jl_tuple_type || vtag == (jl_value_t*)LongTuple_tag) { size_t len; if (vtag == (jl_value_t*)jl_tuple_type) len = read_uint8(s); else len = read_int32(s); jl_tuple_t *tu = jl_alloc_tuple_uninit(len); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)tu); for(i=0; i < len; i++) jl_tupleset(tu, i, jl_deserialize_value(s)); return (jl_value_t*)tu; } else if (vtag == (jl_value_t*)jl_symbol_type || vtag == (jl_value_t*)LongSymbol_tag) { size_t len; if (vtag == (jl_value_t*)jl_symbol_type) len = read_uint8(s); else len = read_int32(s); char *name = alloca(len+1); ios_read(s, name, len); name[len] = '\0'; jl_value_t *s = (jl_value_t*)jl_symbol(name); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, s); return s; } else if (vtag == (jl_value_t*)jl_array_type) { jl_value_t *aty = jl_deserialize_value(s); jl_value_t *elty = jl_tparam0(aty); int16_t ndims = jl_unbox_long(jl_tparam1(aty)); size_t *dims = alloca(ndims*sizeof(size_t)); for(i=0; i < ndims; i++) dims[i] = jl_unbox_long(jl_deserialize_value(s)); jl_array_t *a = jl_new_array_((jl_type_t*)aty, ndims, dims); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)a); if (jl_is_bits_type(elty)) { size_t tot = jl_array_len(a) * a->elsize; ios_read(s, jl_array_data(a), tot); } else { for(i=0; i < jl_array_len(a); i++) { ((jl_value_t**)a->data)[i] = jl_deserialize_value(s); } } return (jl_value_t*)a; } else if (vtag == (jl_value_t*)jl_expr_type || vtag == (jl_value_t*)LongExpr_tag) { size_t len; if (vtag == (jl_value_t*)jl_expr_type) len = read_uint8(s); else len = read_int32(s); jl_expr_t *e = jl_exprn((jl_sym_t*)jl_deserialize_value(s), len); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)e); e->etype = jl_deserialize_value(s); for(i=0; i < len; i++) { jl_cellset(e->args, i, jl_deserialize_value(s)); } return (jl_value_t*)e; } else if (vtag == (jl_value_t*)LiteralVal_tag) { return jl_cellref(tree_literal_values, read_uint16(s)); } else if (vtag == (jl_value_t*)jl_tvar_type) { jl_tvar_t *tv = (jl_tvar_t*)newobj((jl_type_t*)jl_tvar_type, 4); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, tv); tv->name = (jl_sym_t*)jl_deserialize_value(s); tv->lb = jl_deserialize_value(s); tv->ub = jl_deserialize_value(s); tv->bound = read_int8(s); return (jl_value_t*)tv; } else if (vtag == (jl_value_t*)jl_function_type) { jl_function_t *f = (jl_function_t*)newobj((jl_type_t*)jl_function_type, 3); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, f); f->linfo = (jl_lambda_info_t*)jl_deserialize_value(s); f->env = jl_deserialize_value(s); f->fptr = jl_deserialize_fptr(s); return (jl_value_t*)f; } else if (vtag == (jl_value_t*)jl_lambda_info_type) { jl_lambda_info_t *li = (jl_lambda_info_t*)newobj((jl_type_t*)jl_lambda_info_type, LAMBDA_INFO_NW); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, li); li->ast = jl_deserialize_value(s); li->sparams = (jl_tuple_t*)jl_deserialize_value(s); li->tfunc = jl_deserialize_value(s); li->name = (jl_sym_t*)jl_deserialize_value(s); li->specTypes = (jl_tuple_t*)jl_deserialize_value(s); li->specializations = (jl_array_t*)jl_deserialize_value(s); li->inferred = read_int8(s); li->file = jl_deserialize_value(s); li->line = read_int32(s); li->module = (jl_module_t*)jl_deserialize_value(s); li->roots = (jl_array_t*)jl_deserialize_value(s); li->def = (jl_lambda_info_t*)jl_deserialize_value(s); li->capt = jl_deserialize_value(s); li->fptr = &jl_trampoline; li->functionObject = NULL; li->cFunctionObject = NULL; li->inInference = 0; li->inCompile = 0; li->unspecialized = NULL; return (jl_value_t*)li; } else if (vtag == (jl_value_t*)jl_module_type) { jl_sym_t *mname = (jl_sym_t*)jl_deserialize_value(s); jl_module_t *m = jl_new_module(mname); if (usetable) ptrhash_put(&backref_table, (void*)(ptrint_t)pos, m); m->parent = (jl_module_t*)jl_deserialize_value(s); while (1) { jl_value_t *name = jl_deserialize_value(s); if (name == NULL) break; jl_binding_t *b = jl_get_binding_wr(m, (jl_sym_t*)name); b->value = jl_deserialize_value(s); b->type = (jl_type_t*)jl_deserialize_value(s); b->owner = (jl_module_t*)jl_deserialize_value(s); int8_t flags = read_int8(s); b->constp = (flags>>2) & 1; b->exportp = (flags>>1) & 1; b->imported = (flags) & 1; } size_t ni = read_int32(s); for(size_t i=0; i < ni; i++) { arraylist_push(&m->usings, jl_deserialize_value(s)); } return (jl_value_t*)m; }
// TODO: add locks around global state mutation operations jl_value_t *jl_eval_module_expr(jl_module_t *parent_module, jl_expr_t *ex) { jl_ptls_t ptls = jl_get_ptls_states(); assert(ex->head == module_sym); if (jl_array_len(ex->args) != 3 || !jl_is_expr(jl_exprarg(ex, 2))) { jl_error("syntax: malformed module expression"); } int std_imports = (jl_exprarg(ex, 0) == jl_true); jl_sym_t *name = (jl_sym_t*)jl_exprarg(ex, 1); if (!jl_is_symbol(name)) { jl_type_error("module", (jl_value_t*)jl_sym_type, (jl_value_t*)name); } jl_module_t *newm = jl_new_module(name); jl_value_t *form = (jl_value_t*)newm; JL_GC_PUSH1(&form); ptrhash_put(&jl_current_modules, (void*)newm, (void*)((uintptr_t)HT_NOTFOUND + 1)); // copy parent environment info into submodule newm->uuid = parent_module->uuid; if (jl_base_module && (jl_value_t*)parent_module == jl_get_global(jl_base_module, jl_symbol("__toplevel__"))) { newm->parent = newm; jl_register_root_module(newm); } else { jl_binding_t *b = jl_get_binding_wr(parent_module, name, 1); jl_declare_constant(b); if (b->value != NULL) { if (!jl_is_module(b->value)) { jl_errorf("invalid redefinition of constant %s", jl_symbol_name(name)); } if (jl_generating_output()) { jl_errorf("cannot replace module %s during compilation", jl_symbol_name(name)); } jl_printf(JL_STDERR, "WARNING: replacing module %s.\n", jl_symbol_name(name)); // create a hidden gc root for the old module uintptr_t *refcnt = (uintptr_t*)ptrhash_bp(&jl_current_modules, (void*)b->value); *refcnt += 1; } newm->parent = parent_module; b->value = (jl_value_t*)newm; jl_gc_wb_binding(b, newm); } if (parent_module == jl_main_module && name == jl_symbol("Base")) { // pick up Base module during bootstrap jl_base_module = newm; } size_t last_age = ptls->world_age; // add standard imports unless baremodule if (std_imports) { if (jl_base_module != NULL) { jl_add_standard_imports(newm); } // add `eval` function form = jl_call_scm_on_ast("module-default-defs", (jl_value_t*)ex, newm); ptls->world_age = jl_world_counter; jl_toplevel_eval_flex(newm, form, 0, 1); form = NULL; } jl_array_t *exprs = ((jl_expr_t*)jl_exprarg(ex, 2))->args; for (int i = 0; i < jl_array_len(exprs); i++) { // process toplevel form ptls->world_age = jl_world_counter; form = jl_expand_stmt(jl_array_ptr_ref(exprs, i), newm); ptls->world_age = jl_world_counter; (void)jl_toplevel_eval_flex(newm, form, 1, 1); } ptls->world_age = last_age; #if 0 // some optional post-processing steps size_t i; void **table = newm->bindings.table; for(i=1; i < newm->bindings.size; i+=2) { if (table[i] != HT_NOTFOUND) { jl_binding_t *b = (jl_binding_t*)table[i]; // remove non-exported macros if (jl_symbol_name(b->name)[0]=='@' && !b->exportp && b->owner == newm) b->value = NULL; // error for unassigned exports /* if (b->exportp && b->owner==newm && b->value==NULL) jl_errorf("identifier %s exported from %s is not initialized", jl_symbol_name(b->name), jl_symbol_name(newm->name)); */ } } #endif uintptr_t *refcnt = (uintptr_t*)ptrhash_bp(&jl_current_modules, (void*)newm); assert(*refcnt > (uintptr_t)HT_NOTFOUND); *refcnt -= 1; // newm should be reachable from somewhere else by now if (jl_module_init_order == NULL) jl_module_init_order = jl_alloc_vec_any(0); jl_array_ptr_1d_push(jl_module_init_order, (jl_value_t*)newm); // defer init of children until parent is done being defined // then initialize all in definition-finished order // at build time, don't run them at all (defer for runtime) if (!jl_generating_output()) { if (!ptrhash_has(&jl_current_modules, (void*)newm->parent)) { size_t i, l = jl_array_len(jl_module_init_order); size_t ns = 0; form = (jl_value_t*)jl_alloc_vec_any(0); for (i = 0; i < l; i++) { jl_module_t *m = (jl_module_t*)jl_array_ptr_ref(jl_module_init_order, i); if (jl_is_submodule(m, newm)) { jl_array_ptr_1d_push((jl_array_t*)form, (jl_value_t*)m); } else if (ns++ != i) { jl_array_ptr_set(jl_module_init_order, ns - 1, (jl_value_t*)m); } } if (ns < l) jl_array_del_end(jl_module_init_order, l - ns); l = jl_array_len(form); for (i = 0; i < l; i++) { jl_module_t *m = (jl_module_t*)jl_array_ptr_ref(form, i); JL_GC_PROMISE_ROOTED(m); jl_module_run_initializer(m); } } } JL_GC_POP(); return (jl_value_t*)newm; }