Пример #1
0
static inline int sig_match_simple(jl_value_t **args, size_t n, jl_value_t **sig,
                                   int va, size_t lensig)
{
    // NOTE: This function is a performance hot spot!!
    size_t i;
    if (va) lensig -= 1;
    for (i = 0; i < lensig; i++) {
        jl_value_t *decl = sig[i];
        jl_value_t *a = args[i];
        if (decl == (jl_value_t*)jl_any_type || ((jl_value_t*)jl_typeof(a) == decl)) {
            /*
              we are only matching concrete types here, and those types are
              hash-consed, so pointer comparison should work.
            */
            continue;
        }
        jl_value_t *unw = jl_is_unionall(decl) ? ((jl_unionall_t*)decl)->body : decl;
        if (jl_is_type_type(unw) && jl_is_type(a)) {
            jl_value_t *tp0 = jl_tparam0(unw);
            if (jl_is_typevar(tp0)) {
                // in the case of Type{_}, the types don't have to match exactly.
                // this is cached as `Type{T} where T`.
                if (((jl_tvar_t*)tp0)->ub != (jl_value_t*)jl_any_type &&
                    !jl_subtype(a, ((jl_tvar_t*)tp0)->ub))
                    return 0;
            }
            else {
                if (a != tp0) {
                    if (jl_typeof(a) != jl_typeof(tp0))
                        return 0;
                    jl_datatype_t *da = (jl_datatype_t*)a;
                    jl_datatype_t *dt = (jl_datatype_t*)tp0;
                    while (jl_is_unionall(da)) da = (jl_datatype_t*)((jl_unionall_t*)da)->body;
                    while (jl_is_unionall(dt)) dt = (jl_datatype_t*)((jl_unionall_t*)dt)->body;
                    if (jl_is_datatype(da) && jl_is_datatype(dt) && da->name != dt->name)
                        return 0;
                    if (!jl_types_equal(a, tp0))
                        return 0;
                }
            }
        }
        else {
            return 0;
        }
    }
    if (va) {
        jl_value_t *decl = sig[i];
        if (jl_vararg_kind(decl) == JL_VARARG_INT) {
            if (n-i != jl_unbox_long(jl_tparam1(decl)))
                return 0;
        }
        jl_value_t *t = jl_unwrap_vararg(decl);
        for(; i < n; i++) {
            if (!jl_isa(args[i], t))
                return 0;
        }
        return 1;
    }
    return 1;
}
Пример #2
0
// this is a heuristic for allowing "redefining" a type to something identical
static int equiv_type(jl_datatype_t *dta, jl_datatype_t *dtb)
{
    if (!(jl_typeof(dta) == jl_typeof(dtb) &&
          dta->name->name == dtb->name->name &&
          dta->abstract == dtb->abstract &&
          dta->mutabl == dtb->mutabl &&
          dta->size == dtb->size &&
          dta->ninitialized == dtb->ninitialized &&
          jl_egal((jl_value_t*)dta->name->names, (jl_value_t*)dtb->name->names) &&
          jl_nparams(dta) == jl_nparams(dtb) &&
          jl_field_count(dta) == jl_field_count(dtb)))
        return 0;
    jl_value_t *a=NULL, *b=NULL;
    int ok = 1;
    size_t i, nf = jl_field_count(dta);
    JL_GC_PUSH2(&a, &b);
    a = jl_rewrap_unionall((jl_value_t*)dta->super, dta->name->wrapper);
    b = jl_rewrap_unionall((jl_value_t*)dtb->super, dtb->name->wrapper);
    if (!jl_types_equal(a, b))
        goto no;
    JL_TRY {
        a = jl_apply_type(dtb->name->wrapper, jl_svec_data(dta->parameters), jl_nparams(dta));
    }
    JL_CATCH {
        ok = 0;
    }
    if (!ok) goto no;
    assert(jl_is_datatype(a));
    a = dta->name->wrapper;
    b = dtb->name->wrapper;
    while (jl_is_unionall(a)) {
        jl_unionall_t *ua = (jl_unionall_t*)a;
        jl_unionall_t *ub = (jl_unionall_t*)b;
        if (!jl_egal(ua->var->lb, ub->var->lb) || !jl_egal(ua->var->ub, ub->var->ub) ||
            ua->var->name != ub->var->name)
            goto no;
        a = jl_instantiate_unionall(ua, (jl_value_t*)ub->var);
        b = ub->body;
    }
    assert(jl_is_datatype(a) && jl_is_datatype(b));
    for (i=0; i < nf; i++) {
        jl_value_t *ta = jl_svecref(((jl_datatype_t*)a)->types, i);
        jl_value_t *tb = jl_svecref(((jl_datatype_t*)b)->types, i);
        if (jl_has_free_typevars(ta)) {
            if (!jl_has_free_typevars(tb) || !jl_egal(ta, tb))
                goto no;
        }
        else if (jl_has_free_typevars(tb) || jl_typeof(ta) != jl_typeof(tb) ||
                 !jl_types_equal(ta, tb)) {
            goto no;
        }
    }
    JL_GC_POP();
    return 1;
 no:
    JL_GC_POP();
    return 0;
}
Пример #3
0
/*
  Method caches are divided into three parts: one for signatures where
  the first argument is a singleton kind (Type{Foo}), one indexed by the
  UID of the first argument's type in normal cases, and a fallback
  table of everything else.

  Note that the "primary key" is the type of the first *argument*, since
  there tends to be lots of variation there. The type of the 0th argument
  (the function) is always the same for most functions.
*/
static jl_typemap_entry_t *jl_typemap_assoc_by_type_(jl_typemap_entry_t *ml, jl_value_t *types,
                                                     jl_svec_t **penv, size_t world, size_t max_world_mask)
{
    jl_value_t *unw = jl_unwrap_unionall((jl_value_t*)types);
    int isua = jl_is_unionall(types);
    size_t n = jl_field_count(unw);
    int typesisva = n == 0 ? 0 : jl_is_vararg_type(jl_tparam(unw, n-1));
    for (; ml != (void*)jl_nothing; ml = ml->next) {
        if (world < ml->min_world || world > (ml->max_world | max_world_mask))
            continue; // ignore replaced methods
        size_t lensig = jl_field_count(jl_unwrap_unionall((jl_value_t*)ml->sig));
        if (lensig == n || (ml->va && lensig <= n+1)) {
            int resetenv = 0, ismatch = 1;
            if (ml->simplesig != (void*)jl_nothing && !isua) {
                size_t lensimplesig = jl_field_count(ml->simplesig);
                int isva = lensimplesig > 0 && jl_is_vararg_type(jl_tparam(ml->simplesig, lensimplesig - 1));
                if (lensig == n || (isva && lensimplesig <= n + 1))
                    ismatch = sig_match_by_type_simple(jl_svec_data(((jl_datatype_t*)types)->parameters), n,
                                                       ml->simplesig, lensimplesig, isva);
                else
                    ismatch = 0;
            }

            if (ismatch == 0)
                ; // nothing
            else if (ml->isleafsig && !typesisva && !isua)
                ismatch = sig_match_by_type_leaf(jl_svec_data(((jl_datatype_t*)types)->parameters),
                                                 ml->sig, lensig);
            else if (ml->issimplesig && !typesisva && !isua)
                ismatch = sig_match_by_type_simple(jl_svec_data(((jl_datatype_t*)types)->parameters), n,
                                                   ml->sig, lensig, ml->va);
            else {
                ismatch = jl_subtype_matching(types, (jl_value_t*)ml->sig, penv);
                if (ismatch && penv)
                    resetenv = 1;
            }

            if (ismatch) {
                size_t i, l;
                for (i = 0, l = jl_svec_len(ml->guardsigs); i < l; i++) {
                    // see corresponding code in jl_typemap_entry_assoc_exact
                    if (jl_subtype(types, jl_svecref(ml->guardsigs, i))) {
                        ismatch = 0;
                        break;
                    }
                }
                if (ismatch)
                    return ml;
            }
            if (resetenv)
                *penv = jl_emptysvec;
        }
    }
    return NULL;
}
Пример #4
0
static int sig_match_by_type_simple(jl_value_t **types, size_t n, jl_tupletype_t *sig, size_t lensig, int va)
{
    size_t i;
    if (va) lensig -= 1;
    for (i = 0; i < lensig; i++) {
        jl_value_t *decl = jl_field_type(sig, i);
        jl_value_t *a = types[i];
        jl_value_t *unw = jl_is_unionall(decl) ? ((jl_unionall_t*)decl)->body : decl;
        if (jl_is_type_type(unw)) {
            jl_value_t *tp0 = jl_tparam0(unw);
            if (jl_is_type_type(a)) {
                if (jl_is_typevar(tp0)) {
                    // in the case of Type{_}, the types don't have to match exactly.
                    // this is cached as `Type{T} where T`.
                    if (((jl_tvar_t*)tp0)->ub != (jl_value_t*)jl_any_type &&
                        !jl_subtype(jl_tparam0(a), ((jl_tvar_t*)tp0)->ub))
                        return 0;
                }
                else {
                    if (!(jl_typeof(jl_tparam0(a)) == jl_typeof(tp0) && jl_types_equal(jl_tparam0(a), tp0)))
                        return 0;
                }
            }
            else if (!jl_is_kind(a) || !jl_is_typevar(tp0) || ((jl_tvar_t*)tp0)->ub != (jl_value_t*)jl_any_type) {
                // manually unroll jl_subtype(a, decl)
                // where `a` can be a subtype and decl is Type{T}
                return 0;
            }
        }
        else if (decl == (jl_value_t*)jl_any_type) {
        }
        else {
            if (jl_is_type_type(a)) // decl is not Type, because it would be caught above
                a = jl_typeof(jl_tparam0(a));
            if (!jl_types_equal(a, decl))
                return 0;
        }
    }
    if (va) {
        jl_value_t *decl = jl_unwrap_unionall(jl_field_type(sig, i));
        if (jl_vararg_kind(decl) == JL_VARARG_INT) {
            if (n-i != jl_unbox_long(jl_tparam1(decl)))
                return 0;
        }
        jl_value_t *t = jl_tparam0(decl);
        if (jl_is_typevar(t)) t = ((jl_tvar_t*)t)->ub;
        for(; i < n; i++) {
            if (!jl_subtype(types[i], t))
                return 0;
        }
        return 1;
    }
    return 1;
}
Пример #5
0
static int references_name(jl_value_t *p, jl_typename_t *name)
{
    if (jl_is_uniontype(p))
        return references_name(((jl_uniontype_t*)p)->a, name) ||
               references_name(((jl_uniontype_t*)p)->b, name);
    if (jl_is_unionall(p))
        return references_name((jl_value_t*)((jl_unionall_t*)p)->var, name) ||
               references_name(((jl_unionall_t*)p)->body, name);
    if (jl_is_typevar(p))
        return references_name(((jl_tvar_t*)p)->ub, name) ||
               references_name(((jl_tvar_t*)p)->lb, name);
    if (jl_is_datatype(p)) {
        if (((jl_datatype_t*)p)->name == name)
            return 1;
        size_t i, l = jl_nparams(p);
        for (i = 0; i < l; i++) {
            if (references_name(jl_tparam(p, i), name))
                return 1;
        }
    }
    return 0;
}
Пример #6
0
// f{<:Union{...}}(...) is a common pattern
// and expanding the Union may give a leaf function
static void _compile_all_tvar_union(jl_value_t *methsig)
{
    if (!jl_is_unionall(methsig) && jl_is_leaf_type(methsig)) {
        // usually can create a specialized version of the function,
        // if the signature is already a leaftype
        if (jl_compile_hint((jl_tupletype_t*)methsig))
            return;
    }

    int tvarslen = jl_subtype_env_size(methsig);
    jl_value_t *sigbody = methsig;
    jl_value_t **env;
    JL_GC_PUSHARGS(env, 2 * tvarslen);
    int *idx = (int*)alloca(sizeof(int) * tvarslen);
    int i;
    for (i = 0; i < tvarslen; i++) {
        assert(jl_is_unionall(sigbody));
        idx[i] = 0;
        env[2 * i] = (jl_value_t*)((jl_unionall_t*)sigbody)->var;
        env[2 * i + 1] = jl_bottom_type; // initialize the list with Union{}, since T<:Union{} is always a valid option
        sigbody = ((jl_unionall_t*)sigbody)->body;
    }

    for (i = 0; i < tvarslen; /* incremented by inner loop */) {
        jl_value_t *sig;
        JL_TRY {
            // TODO: wrap in UnionAll for each tvar in env[2*i + 1] ?
            // currently doesn't matter much, since jl_compile_hint doesn't work on abstract types
            sig = (jl_value_t*)jl_instantiate_type_with(sigbody, env, tvarslen);
        }
        JL_CATCH {
            goto getnext; // sigh, we found an invalid type signature. should we warn the user?
        }
        assert(jl_is_tuple_type(sig));
        if (sig == jl_bottom_type || tupletype_any_bottom(sig))
            goto getnext; // signature wouldn't be callable / is invalid -- skip it
        if (jl_is_leaf_type(sig)) {
            if (jl_compile_hint((jl_tupletype_t*)sig))
                goto getnext; // success
        }

    getnext:
        for (i = 0; i < tvarslen; i++) {
            jl_tvar_t *tv = (jl_tvar_t*)env[2 * i];
            if (jl_is_uniontype(tv->ub)) {
                size_t l = jl_count_union_components(tv->ub);
                size_t j = idx[i];
                if (j == l) {
                    env[2 * i + 1] = jl_bottom_type;
                    idx[i] = 0;
                }
                else {
                    jl_value_t *ty = jl_nth_union_component(tv->ub, j);
                    if (!jl_is_leaf_type(ty))
                        ty = (jl_value_t*)jl_new_typevar(tv->name, tv->lb, ty);
                    env[2 * i + 1] = ty;
                    idx[i] = j + 1;
                    break;
                }
            }
            else {
                env[2 * i + 1] = (jl_value_t*)tv;
            }
        }
    }
    JL_GC_POP();
}
Пример #7
0
// `v` might be pointing to a field inlined in a structure therefore
// `jl_typeof(v)` may not be the same with `vt` and only `vt` should be
// used to determine the type of the value.
// This is necessary to make sure that this function doesn't allocate any
// memory through the Julia GC
static size_t jl_static_show_x_(JL_STREAM *out, jl_value_t *v, jl_datatype_t *vt,
                                struct recur_list *depth)
{
    size_t n = 0;
    if ((uintptr_t)vt < 4096U) {
        n += jl_printf(out, "<?#%p::%p>", (void*)v, (void*)vt);
    }
    else if ((uintptr_t)v < 4096U) {
        n += jl_printf(out, "<?#%p::", (void*)v);
        n += jl_static_show_x(out, (jl_value_t*)vt, depth);
        n += jl_printf(out, ">");
    }
    else if (vt == jl_method_type) {
        jl_method_t *m = (jl_method_t*)v;
        n += jl_static_show_x(out, (jl_value_t*)m->module, depth);
        n += jl_printf(out, ".%s(...)", jl_symbol_name(m->name));
    }
    else if (vt == jl_method_instance_type) {
        jl_method_instance_t *li = (jl_method_instance_t*)v;
        if (jl_is_method(li->def.method)) {
            jl_method_t *m = li->def.method;
            n += jl_static_show_x(out, (jl_value_t*)m->module, depth);
            if (li->specTypes) {
                n += jl_printf(out, ".");
                n += jl_show_svec(out, ((jl_datatype_t*)jl_unwrap_unionall(li->specTypes))->parameters,
                                  jl_symbol_name(m->name), "(", ")");
            }
            else {
                n += jl_printf(out, ".%s(?)", jl_symbol_name(m->name));
            }
        }
        else {
            n += jl_static_show_x(out, (jl_value_t*)li->def.module, depth);
            n += jl_printf(out, ".<toplevel thunk> -> ");
            n += jl_static_show_x(out, li->inferred, depth);
        }
    }
    else if (vt == jl_simplevector_type) {
        n += jl_show_svec(out, (jl_svec_t*)v, "svec", "(", ")");
    }
    else if (vt == jl_datatype_type) {
        jl_datatype_t *dv = (jl_datatype_t*)v;
        jl_sym_t *globname = dv->name->mt != NULL ? dv->name->mt->name : NULL;
        int globfunc = 0;
        if (globname && !strchr(jl_symbol_name(globname), '#') &&
            !strchr(jl_symbol_name(globname), '@') && dv->name->module &&
            jl_binding_resolved_p(dv->name->module, globname)) {
            jl_binding_t *b = jl_get_binding(dv->name->module, globname);
            if (b && jl_typeof(b->value) == v)
                globfunc = 1;
        }
        jl_sym_t *sym = globfunc ? globname : dv->name->name;
        char *sn = jl_symbol_name(sym);
        int hidden = !globfunc && strchr(sn, '#');
        size_t i = 0;
        int quote = 0;
        if (hidden) {
            n += jl_printf(out, "getfield(");
        }
        else if (globfunc) {
            n += jl_printf(out, "typeof(");
        }
        if (dv->name->module != jl_core_module || !jl_module_exports_p(jl_core_module, sym)) {
            n += jl_static_show_x(out, (jl_value_t*)dv->name->module, depth);
            if (!hidden) {
                n += jl_printf(out, ".");
                if (globfunc && !jl_id_start_char(u8_nextchar(sn, &i))) {
                    n += jl_printf(out, ":(");
                    quote = 1;
                }
            }
        }
        if (hidden) {
            n += jl_printf(out, ", Symbol(\"");
            n += jl_printf(out, "%s", sn);
            n += jl_printf(out, "\"))");
        }
        else {
            n += jl_printf(out, "%s", sn);
            if (globfunc) {
                n += jl_printf(out, ")");
                if (quote)
                    n += jl_printf(out, ")");
            }
        }
        if (dv->parameters && (jl_value_t*)dv != dv->name->wrapper &&
            (jl_has_free_typevars(v) ||
             (jl_value_t*)dv != (jl_value_t*)jl_tuple_type)) {
            size_t j, tlen = jl_nparams(dv);
            if (tlen > 0) {
                n += jl_printf(out, "{");
                for (j = 0; j < tlen; j++) {
                    jl_value_t *p = jl_tparam(dv,j);
                    n += jl_static_show_x(out, p, depth);
                    if (j != tlen-1)
                        n += jl_printf(out, ", ");
                }
                n += jl_printf(out, "}");
            }
            else if (dv->name == jl_tuple_typename) {
                n += jl_printf(out, "{}");
            }
        }
    }
    else if (vt == jl_intrinsic_type) {
        int f = *(uint32_t*)jl_data_ptr(v);
        n += jl_printf(out, "#<intrinsic #%d %s>", f, jl_intrinsic_name(f));
    }
    else if (vt == jl_int64_type) {
        n += jl_printf(out, "%" PRId64, *(int64_t*)v);
    }
    else if (vt == jl_int32_type) {
        n += jl_printf(out, "%" PRId32, *(int32_t*)v);
    }
    else if (vt == jl_int16_type) {
        n += jl_printf(out, "%" PRId16, *(int16_t*)v);
    }
    else if (vt == jl_int8_type) {
        n += jl_printf(out, "%" PRId8, *(int8_t*)v);
    }
    else if (vt == jl_uint64_type) {
        n += jl_printf(out, "0x%016" PRIx64, *(uint64_t*)v);
    }
    else if (vt == jl_uint32_type) {
        n += jl_printf(out, "0x%08" PRIx32, *(uint32_t*)v);
    }
    else if (vt == jl_uint16_type) {
        n += jl_printf(out, "0x%04" PRIx16, *(uint16_t*)v);
    }
    else if (vt == jl_uint8_type) {
        n += jl_printf(out, "0x%02" PRIx8, *(uint8_t*)v);
    }
    else if (jl_is_cpointer_type((jl_value_t*)vt)) {
#ifdef _P64
        n += jl_printf(out, "0x%016" PRIx64, *(uint64_t*)v);
#else
        n += jl_printf(out, "0x%08" PRIx32, *(uint32_t*)v);
#endif
    }
    else if (vt == jl_float32_type) {
        n += jl_printf(out, "%gf", *(float*)v);
    }
    else if (vt == jl_float64_type) {
        n += jl_printf(out, "%g", *(double*)v);
    }
    else if (vt == jl_bool_type) {
        n += jl_printf(out, "%s", *(uint8_t*)v ? "true" : "false");
    }
    else if ((jl_value_t*)vt == jl_typeof(jl_nothing)) {
        n += jl_printf(out, "nothing");
    }
    else if (vt == jl_string_type) {
        n += jl_printf(out, "\"");
        jl_uv_puts(out, jl_string_data(v), jl_string_len(v)); n += jl_string_len(v);
        n += jl_printf(out, "\"");
    }
    else if (v == jl_bottom_type) {
        n += jl_printf(out, "Union{}");
    }
    else if (vt == jl_uniontype_type) {
        n += jl_printf(out, "Union{");
        while (jl_is_uniontype(v)) {
            // tail-recurse on b to flatten the printing of the Union structure in the common case
            n += jl_static_show_x(out, ((jl_uniontype_t*)v)->a, depth);
            n += jl_printf(out, ", ");
            v = ((jl_uniontype_t*)v)->b;
        }
        n += jl_static_show_x(out, v, depth);
        n += jl_printf(out, "}");
    }
    else if (vt == jl_unionall_type) {
        jl_unionall_t *ua = (jl_unionall_t*)v;
        n += jl_static_show_x(out, ua->body, depth);
        n += jl_printf(out, " where ");
        n += jl_static_show_x(out, (jl_value_t*)ua->var, depth->prev);
    }
    else if (vt == jl_tvar_type) {
        // show type-var bounds only if they aren't going to be printed by UnionAll later
        jl_tvar_t *var = (jl_tvar_t*)v;
        struct recur_list *p;
        int showbounds = 1;
        for (p = depth; p != NULL; p = p->prev) {
            if (jl_is_unionall(p->v) && ((jl_unionall_t*)p->v)->var == var) {
                showbounds = 0;
                break;
            }
        }
        jl_value_t *lb = var->lb, *ub = var->ub;
        if (showbounds && lb != jl_bottom_type) {
            // show type-var lower bound if it is defined
            int ua = jl_is_unionall(lb);
            if (ua)
                n += jl_printf(out, "(");
            n += jl_static_show_x(out, lb, depth);
            if (ua)
                n += jl_printf(out, ")");
            n += jl_printf(out, "<:");
        }
        n += jl_printf(out, "%s", jl_symbol_name(var->name));
        if (showbounds && (ub != (jl_value_t*)jl_any_type || lb != jl_bottom_type)) {
            // show type-var upper bound if it is defined, or if we showed the lower bound
            int ua = jl_is_unionall(ub);
            n += jl_printf(out, "<:");
            if (ua)
                n += jl_printf(out, "(");
            n += jl_static_show_x(out, ub, depth);
            if (ua)
                n += jl_printf(out, ")");
        }
    }
    else if (vt == jl_module_type) {
        jl_module_t *m = (jl_module_t*)v;
        if (m->parent != m && m->parent != jl_main_module) {
            n += jl_static_show_x(out, (jl_value_t*)m->parent, depth);
            n += jl_printf(out, ".");
        }
        n += jl_printf(out, "%s", jl_symbol_name(m->name));
    }
    else if (vt == jl_sym_type) {
        char *sn = jl_symbol_name((jl_sym_t*)v);
        int quoted = !jl_is_identifier(sn) && jl_operator_precedence(sn) == 0;
        if (quoted)
            n += jl_printf(out, "Symbol(\"");
        else
            n += jl_printf(out, ":");
        n += jl_printf(out, "%s", sn);
        if (quoted)
            n += jl_printf(out, "\")");
    }
    else if (vt == jl_ssavalue_type) {
        n += jl_printf(out, "SSAValue(%" PRIuPTR ")",
                       (uintptr_t)((jl_ssavalue_t*)v)->id);
    }
    else if (vt == jl_globalref_type) {
        n += jl_static_show_x(out, (jl_value_t*)jl_globalref_mod(v), depth);
        n += jl_printf(out, ".%s", jl_symbol_name(jl_globalref_name(v)));
    }
    else if (vt == jl_labelnode_type) {
        n += jl_printf(out, "%" PRIuPTR ":", jl_labelnode_label(v));
    }
    else if (vt == jl_gotonode_type) {
        n += jl_printf(out, "goto %" PRIuPTR, jl_gotonode_label(v));
    }
    else if (vt == jl_quotenode_type) {
        jl_value_t *qv = *(jl_value_t**)v;
        if (!jl_is_symbol(qv)) {
            n += jl_printf(out, "quote ");
        }
        else {
            n += jl_printf(out, ":(");
        }
        n += jl_static_show_x(out, qv, depth);
        if (!jl_is_symbol(qv)) {
            n += jl_printf(out, " end");
        }
        else {
            n += jl_printf(out, ")");
        }
    }
    else if (vt == jl_newvarnode_type) {
        n += jl_printf(out, "<newvar ");
        n += jl_static_show_x(out, *(jl_value_t**)v, depth);
        n += jl_printf(out, ">");
    }
    else if (vt == jl_linenumbernode_type) {
        n += jl_printf(out, "#= ");
        n += jl_static_show_x(out, jl_linenode_file(v), depth);
        n += jl_printf(out, ":%" PRIuPTR " =#", jl_linenode_line(v));
    }
    else if (vt == jl_expr_type) {
        jl_expr_t *e = (jl_expr_t*)v;
        if (e->head == assign_sym && jl_array_len(e->args) == 2) {
            n += jl_static_show_x(out, jl_exprarg(e,0), depth);
            n += jl_printf(out, " = ");
            n += jl_static_show_x(out, jl_exprarg(e,1), depth);
        }
        else {
            char sep = ' ';
            if (e->head == body_sym)
                sep = '\n';
            n += jl_printf(out, "Expr(:%s", jl_symbol_name(e->head));
            size_t i, len = jl_array_len(e->args);
            for (i = 0; i < len; i++) {
                n += jl_printf(out, ",%c", sep);
                n += jl_static_show_x(out, jl_exprarg(e,i), depth);
            }
            n += jl_printf(out, ")::");
            n += jl_static_show_x(out, e->etype, depth);
        }
    }
    else if (jl_is_array_type(vt)) {
        n += jl_static_show_x(out, (jl_value_t*)vt, depth);
        n += jl_printf(out, "[");
        size_t j, tlen = jl_array_len(v);
        jl_array_t *av = (jl_array_t*)v;
        jl_datatype_t *el_type = (jl_datatype_t*)jl_tparam0(vt);
        int nlsep = 0;
        if (av->flags.ptrarray) {
            // print arrays with newlines, unless the elements are probably small
            for (j = 0; j < tlen; j++) {
                jl_value_t *p = jl_array_ptr_ref(av, j);
                if (p != NULL && (uintptr_t)p >= 4096U) {
                    jl_value_t *p_ty = jl_typeof(p);
                    if ((uintptr_t)p_ty >= 4096U) {
                        if (!jl_isbits(p_ty)) {
                            nlsep = 1;
                            break;
                        }
                    }
                }
            }
        }
        if (nlsep && tlen > 1)
            n += jl_printf(out, "\n  ");
        for (j = 0; j < tlen; j++) {
            if (av->flags.ptrarray) {
                n += jl_static_show_x(out, jl_array_ptr_ref(v, j), depth);
            }
            else {
                char *ptr = ((char*)av->data) + j * av->elsize;
                n += jl_static_show_x_(out, (jl_value_t*)ptr, el_type, depth);
            }
            if (j != tlen - 1)
                n += jl_printf(out, nlsep ? ",\n  " : ", ");
        }
        n += jl_printf(out, "]");
    }
    else if (vt == jl_loaderror_type) {
        n += jl_printf(out, "LoadError(at ");
        n += jl_static_show_x(out, *(jl_value_t**)v, depth);
        // Access the field directly to avoid allocation
        n += jl_printf(out, " line %" PRIdPTR, ((intptr_t*)v)[1]);
        n += jl_printf(out, ": ");
        n += jl_static_show_x(out, ((jl_value_t**)v)[2], depth);
        n += jl_printf(out, ")");
    }
    else if (vt == jl_errorexception_type) {
        n += jl_printf(out, "ErrorException(");
        n += jl_static_show_x(out, *(jl_value_t**)v, depth);
        n += jl_printf(out, ")");
    }
    else if (jl_is_datatype(vt)) {
        int istuple = jl_is_tuple_type(vt);
        if (!istuple)
            n += jl_static_show_x(out, (jl_value_t*)vt, depth);
        n += jl_printf(out, "(");
        size_t nb = jl_datatype_size(vt);
        size_t tlen = jl_datatype_nfields(vt);
        if (nb > 0 && tlen == 0) {
            uint8_t *data = (uint8_t*)v;
            n += jl_printf(out, "0x");
            for(int i = nb - 1; i >= 0; --i)
                n += jl_printf(out, "%02" PRIx8, data[i]);
        }
        else {
            size_t i = 0;
            if (vt == jl_typemap_entry_type)
                i = 1;
            for (; i < tlen; i++) {
                if (!istuple) {
                    n += jl_printf(out, "%s", jl_symbol_name(jl_field_name(vt, i)));
                    n += jl_printf(out, "=");
                }
                size_t offs = jl_field_offset(vt, i);
                char *fld_ptr = (char*)v + offs;
                if (jl_field_isptr(vt, i)) {
                    n += jl_static_show_x(out, *(jl_value_t**)fld_ptr, depth);
                }
                else {
                    jl_datatype_t *ft = (jl_datatype_t*)jl_field_type(vt, i);
                    if (jl_is_uniontype(ft)) {
                        uint8_t sel = ((uint8_t*)fld_ptr)[jl_field_size(vt, i) - 1];
                        ft = (jl_datatype_t*)jl_nth_union_component((jl_value_t*)ft, sel);
                    }
                    n += jl_static_show_x_(out, (jl_value_t*)fld_ptr, ft, depth);
                }
                if (istuple && tlen == 1)
                    n += jl_printf(out, ",");
                else if (i != tlen - 1)
                    n += jl_printf(out, ", ");
            }
            if (vt == jl_typemap_entry_type) {
                n += jl_printf(out, ", next=↩︎\n  ");
                n += jl_static_show_x(out, jl_fieldref(v, 0), depth);
            }
        }
        n += jl_printf(out, ")");
    }
    else {
        n += jl_printf(out, "<?#%p::", (void*)v);
        n += jl_static_show_x(out, (jl_value_t*)vt, depth);
        n += jl_printf(out, ">");
    }
    return n;
}
Пример #8
0
jl_typemap_entry_t *jl_typemap_insert(union jl_typemap_t *cache, jl_value_t *parent,
                                      jl_tupletype_t *type,
                                      jl_tupletype_t *simpletype, jl_svec_t *guardsigs,
                                      jl_value_t *newvalue, int8_t offs,
                                      const struct jl_typemap_info *tparams,
                                      size_t min_world, size_t max_world,
                                      jl_value_t **overwritten)
{
    jl_ptls_t ptls = jl_get_ptls_states();
    assert(min_world > 0 && max_world > 0);
    if (!simpletype)
        simpletype = (jl_tupletype_t*)jl_nothing;
    jl_value_t *ttype = jl_unwrap_unionall((jl_value_t*)type);

    if ((jl_value_t*)simpletype == jl_nothing) {
        jl_typemap_entry_t *ml = jl_typemap_assoc_by_type(*cache, (jl_value_t*)type, NULL, 0, offs, min_world, 0);
        if (ml && ml->simplesig == (void*)jl_nothing) {
            if (overwritten != NULL)
                *overwritten = ml->func.value;
            if (newvalue == ml->func.value) // no change. TODO: involve world in computation!
                return ml;
            if (newvalue == NULL)  // don't overwrite with guard entries
                return ml;
            ml->max_world = min_world - 1;
        }
    }

    jl_typemap_entry_t *newrec =
        (jl_typemap_entry_t*)jl_gc_alloc(ptls, sizeof(jl_typemap_entry_t),
                                         jl_typemap_entry_type);
    newrec->sig = type;
    newrec->simplesig = simpletype;
    newrec->func.value = newvalue;
    newrec->guardsigs = guardsigs;
    newrec->next = (jl_typemap_entry_t*)jl_nothing;
    newrec->min_world = min_world;
    newrec->max_world = max_world;
    // compute the complexity of this type signature
    newrec->va = jl_is_va_tuple((jl_datatype_t*)ttype);
    newrec->issimplesig = !jl_is_unionall(type); // a TypeVar environment needs a complex matching test
    newrec->isleafsig = newrec->issimplesig && !newrec->va; // entirely leaf types don't need to be sorted
    JL_GC_PUSH1(&newrec);
    assert(jl_is_tuple_type(ttype));
    size_t i, l;
    for (i = 0, l = jl_field_count(ttype); i < l && newrec->issimplesig; i++) {
        jl_value_t *decl = jl_field_type(ttype, i);
        if (jl_is_kind(decl))
            newrec->isleafsig = 0; // Type{} may have a higher priority than a kind
        else if (jl_is_type_type(decl))
            newrec->isleafsig = 0; // Type{} may need special processing to compute the match
        else if (jl_is_vararg_type(decl))
            newrec->isleafsig = 0; // makes iteration easier when the endpoints are the same
        else if (decl == (jl_value_t*)jl_any_type)
            newrec->isleafsig = 0; // Any needs to go in the general cache
        else if (!jl_is_concrete_type(decl)) // anything else needs to go through the general subtyping test
            newrec->isleafsig = newrec->issimplesig = 0;
    }
    // TODO: assert that guardsigs == jl_emptysvec && simplesig == jl_nothing if isleafsig and optimize with that knowledge?
    jl_typemap_insert_generic(cache, parent, newrec, NULL, offs, tparams);
    JL_GC_POP();
    return newrec;
}