Exemple #1
0
static void show_function(jl_value_t *v)
{
    ios_t *s = jl_current_output_stream();
    if (jl_is_gf(v)) {
        ios_puts(jl_gf_name(v)->name, s);
    }
    else {
        ios_puts("#<function>", s);
    }
}
Exemple #2
0
jl_function_t *jl_module_call_func(jl_module_t *m)
{
    if (m->call_func == NULL) {
        jl_function_t *cf = (jl_function_t*)jl_get_global(m, call_sym);
        if (cf == NULL || !jl_is_function(cf) || !jl_is_gf(cf))
            cf = jl_bottom_func;
        m->call_func = cf;
    }
    return m->call_func;
}
Exemple #3
0
jl_value_t *jl_method_def(jl_sym_t *name, jl_value_t **bp, jl_binding_t *bnd,
                          jl_tuple_t *argtypes, jl_function_t *f, jl_tuple_t *t)
{
    jl_value_t *gf;
    if (bnd) {
        jl_declare_constant(bnd);
    }
    if (*bp == NULL) {
        gf = (jl_value_t*)jl_new_generic_function(name);
        *bp = gf;
    }
    else {
        gf = *bp;
        if (!jl_is_gf(gf)) {
            if (jl_is_struct_type(gf) &&
                ((jl_function_t*)gf)->fptr == jl_f_ctor_trampoline) {
                jl_add_constructors((jl_struct_type_t*)gf);
            }
            if (!jl_is_gf(gf)) {
                jl_error("invalid method definition: not a generic function");
            }
        }
    }
    JL_GC_PUSH(&gf);
    assert(jl_is_function(f));
    assert(jl_is_tuple(argtypes));
    assert(jl_is_tuple(t));
    jl_check_type_tuple(argtypes, name, "method definition");
    for(size_t i=0; i < t->length; i++) {
        if (!jl_is_typevar(jl_tupleref(t,i)))
            jl_type_error_rt(name->name, "method definition",
                             (jl_value_t*)jl_tvar_type, jl_tupleref(t,i));
    }
    jl_add_method((jl_function_t*)gf, argtypes, f, t);
    if (jl_boot_file_loaded &&
        f->linfo && f->linfo->ast && jl_is_expr(f->linfo->ast)) {
        jl_lambda_info_t *li = f->linfo;
        li->ast = jl_compress_ast(li, li->ast);
    }
    JL_GC_POP();
    return gf;
}
Exemple #4
0
// get binding for adding a method
// like jl_get_binding_wr, but uses existing imports instead of warning
// and overwriting.
JL_DLLEXPORT jl_binding_t *jl_get_binding_for_method_def(jl_module_t *m,
                                                         jl_sym_t *var)
{
    if (jl_base_module && m->std_imports && !jl_binding_resolved_p(m,var)) {
        jl_module_t *opmod = (jl_module_t*)jl_get_global(jl_base_module, jl_symbol("Operators"));
        if (opmod != NULL && jl_defines_or_exports_p(opmod, var)) {
            jl_printf(JL_STDERR,
                      "WARNING: module %s should explicitly import %s from %s\n",
                      jl_symbol_name(m->name), jl_symbol_name(var),
                      jl_symbol_name(jl_base_module->name));
            jl_module_import(m, opmod, var);
        }
    }

    jl_binding_t **bp = (jl_binding_t**)ptrhash_bp(&m->bindings, var);
    jl_binding_t *b = *bp;

    if (b != HT_NOTFOUND) {
        if (b->owner != m && b->owner != NULL) {
            jl_binding_t *b2 = jl_get_binding(b->owner, var);
            if (b2 == NULL)
                jl_errorf("invalid method definition: imported function %s.%s does not exist", jl_symbol_name(b->owner->name), jl_symbol_name(var));
            if (!b->imported && (b2->value==NULL || jl_is_function(b2->value))) {
                if (b2->value && !jl_is_gf(b2->value)) {
                    jl_errorf("error in method definition: %s.%s cannot be extended", jl_symbol_name(b->owner->name), jl_symbol_name(var));
                }
                else {
                    if (jl_base_module && m->std_imports && b->owner == jl_base_module) {
                        jl_module_t *opmod = (jl_module_t*)jl_get_global(jl_base_module, jl_symbol("Operators"));
                        if (opmod != NULL && jl_defines_or_exports_p(opmod, var)) {
                            jl_printf(JL_STDERR,
                                      "WARNING: module %s should explicitly import %s from %s\n",
                                      jl_symbol_name(m->name),
                                      jl_symbol_name(var),
                                      jl_symbol_name(b->owner->name));
                            return b2;
                        }
                    }
                    jl_errorf("error in method definition: function %s.%s must be explicitly imported to be extended", jl_symbol_name(b->owner->name),
                              jl_symbol_name(var));
                }
            }
            return b2;
        }
        b->owner = m;
        return b;
    }

    b = new_binding(var);
    b->owner = m;
    *bp = b;
    jl_gc_wb_buf(m, b);
    return *bp;
}
Exemple #5
0
void jl_show_full_function(jl_value_t *v)
{
    ios_t *s = jl_current_output_stream();
    if (jl_is_gf(v)) {
        ios_puts("Methods for generic function ", s);
        ios_puts(jl_gf_name(v)->name, s);
        ios_putc('\n', s);
        jl_show_method_table((jl_function_t*)v);
    }
    else {
        show_function(v);
    }
}
Exemple #6
0
static void print_profile(void)
{
    size_t i;
    void **table = jl_base_module->bindings.table;
    for(i=1; i < jl_base_module->bindings.size; i+=2) {
        if (table[i] != HT_NOTFOUND) {
            jl_binding_t *b = (jl_binding_t*)table[i];
            if (b->value != NULL && jl_is_function(b->value) &&
                jl_is_gf(b->value)) {
                ios_printf(ios_stdout, "%d\t%s\n",
                           jl_gf_mtable(b->value)->ncalls,
                           jl_gf_name(b->value)->name);
            }
        }
    }
}
Exemple #7
0
static void repl_show_value(jl_value_t *v)
{
    if (jl_is_function(v) && !jl_is_struct_type(v)) {
        // show method table when a function is shown at the top level.
        jl_show_full_function(v);
        return;
    }
    jl_show(v);
    if (jl_is_struct_type(v)) {
        ios_t *s = jl_current_output_stream();
        // for convenience, show constructor methods when
        // a type is shown at the top level.
        if (jl_is_gf(v)) {
            ios_putc('\n', s);
            jl_show_full_function(v);
        }
    }
}
Exemple #8
0
static void clear_tfunc_caches(void)
{
    htable_t *t = &jl_system_module->bindings;
    size_t i;
    for(i=0; i < t->size; i+=2) {
        if (t->table[i+1] == HT_NOTFOUND)
            continue;
        jl_binding_t *b = (jl_binding_t*)t->table[i+1];
        if (b->value != NULL && jl_is_func(b->value) && jl_is_gf(b->value)) {
            jl_function_t *f = (jl_function_t*)b->value;
            jl_methtable_t *mt = jl_gf_mtable(f);
            //mt->cache = NULL;
            jl_methlist_t *ml = mt->defs;
            while (ml != NULL) {
                if (ml->func != NULL && ml->func->linfo != NULL)
                    ml->func->linfo->tfunc = (jl_value_t*)jl_null;
                ml = ml->next;
            }
        }
    }
}
Exemple #9
0
// empty generic function def
// TODO: maybe have jl_method_def call this
DLLEXPORT jl_value_t *jl_generic_function_def(jl_sym_t *name, jl_value_t **bp, jl_value_t *bp_owner,
                                              jl_binding_t *bnd)
{
    jl_value_t *gf=NULL;

    if (bnd && bnd->value != NULL && !bnd->constp)
        jl_errorf("cannot define function %s; it already has a value", bnd->name->name);
    if (*bp != NULL) {
        gf = *bp;
        if (!jl_is_gf(gf))
            jl_errorf("cannot define function %s; it already has a value", name->name);
    }
    if (bnd)
        bnd->constp = 1;
    if (*bp == NULL) {
        jl_module_t *module = (bnd ? bnd->owner : NULL);
        gf = (jl_value_t*)jl_new_generic_function(name, module);
        *bp = gf;
        if (bp_owner) jl_gc_wb(bp_owner, gf);
    }
    return gf;
}
Exemple #10
0
void jl_binding_deprecation_warning(jl_binding_t *b)
{
    if (b->deprecated && jl_options.depwarn) {
        if (jl_options.depwarn != JL_OPTIONS_DEPWARN_ERROR)
            jl_printf(JL_STDERR, "WARNING: ");
        if (b->owner)
            jl_printf(JL_STDERR, "%s.%s is deprecated",
                      jl_symbol_name(b->owner->name), jl_symbol_name(b->name));
        else
            jl_printf(JL_STDERR, "%s is deprecated", jl_symbol_name(b->name));
        jl_value_t *v = b->value;
        if (v && (jl_is_type(v) || (jl_is_function(v) && jl_is_gf(v)))) {
            jl_printf(JL_STDERR, ", use ");
            if (b->owner && strcmp(jl_symbol_name(b->owner->name), "Base") == 0 &&
                strcmp(jl_symbol_name(b->name), "Uint") == 0) {
                // TODO: Suggesting type b->value is wrong for typealiases.
                // Uncommon in Base, hardcoded here for now, see #13221
                jl_printf(JL_STDERR, "UInt");
            }
            else {
                jl_static_show(JL_STDERR, v);
            }
            jl_printf(JL_STDERR, " instead");
        }
        jl_printf(JL_STDERR, ".\n");

        if (jl_options.depwarn != JL_OPTIONS_DEPWARN_ERROR)
            jl_printf(JL_STDERR, "  likely near %s:%d\n", jl_filename, jl_lineno);

        if (jl_options.depwarn == JL_OPTIONS_DEPWARN_ERROR) {
            if (b->owner)
                jl_errorf("deprecated binding: %s.%s",
                          jl_symbol_name(b->owner->name),
                          jl_symbol_name(b->name));
            else
                jl_errorf("deprecated binding: %s", jl_symbol_name(b->name));
        }
    }
}
Exemple #11
0
jl_value_t *jl_method_def(jl_sym_t *name, jl_value_t **bp, jl_binding_t *bnd,
                          jl_tuple_t *argtypes, jl_function_t *f)
{
    jl_value_t *gf;
    if (bnd) {
        jl_declare_constant(bnd);
    }
    if (*bp == NULL) {
        gf = (jl_value_t*)jl_new_generic_function(name);
        *bp = gf;
    }
    else {
        gf = *bp;
        if (!jl_is_gf(gf))
            jl_error("in method definition: not a generic function");
    }
    JL_GC_PUSH(&gf);
    assert(jl_is_function(f));
    assert(jl_is_tuple(argtypes));
    check_type_tuple(argtypes, name, "method definition");
    jl_add_method((jl_function_t*)gf, argtypes, f);
    JL_GC_POP();
    return gf;
}
Exemple #12
0
DLLEXPORT size_t jl_static_show(JL_STREAM *out, jl_value_t *v)
{
    // mimic jl_show, but never calling a julia method
    size_t n = 0;
    if (v == NULL) {
        n += JL_PRINTF(out, "<null>");
    }
    else if (jl_is_lambda_info(v)) {
        jl_lambda_info_t *li = (jl_lambda_info_t*)v;
        n += jl_static_show(out, (jl_value_t*)li->module);
        n += JL_PRINTF(out, ".%s", li->name->name);
        if (li->specTypes) {
            n += jl_static_show(out, (jl_value_t*)li->specTypes);
        }
        else {
            n += JL_PRINTF(out, "(?)");
        }
    }
    else if (jl_is_tuple(v)) {
        n += jl_show_tuple(out, (jl_tuple_t*)v, "(", ")", 1);
    }
    else if (jl_is_vararg_type(v)) {
        n += jl_static_show(out, jl_tparam0(v));
        n += JL_PRINTF(out, "...");
    }
    else if (jl_is_datatype(v)) {
        jl_datatype_t *dv = (jl_datatype_t*)v;
        if (dv->name->module != jl_core_module) {
            n += jl_static_show(out, (jl_value_t*)dv->name->module);
            JL_PUTS(".", out); n += 1;
        }
        n += JL_PRINTF(out, "%s", dv->name->name->name);
        if (dv->parameters) {
            size_t j, tlen = jl_tuple_len(dv->parameters);
            if (tlen > 0) {
                n += JL_PRINTF(out, "{");
                for (j = 0; j < tlen; j++) {
                    jl_value_t *p = jl_tupleref(dv->parameters,j);
                    n += jl_static_show(out, p);
                    if (j != tlen-1)
                        n += JL_PRINTF(out, ", ");
                }
                n += JL_PRINTF(out, "}");
            }
        }
    }
    else if (jl_is_func(v)) {
        if (jl_is_gf(v)) {
            n += JL_PRINTF(out, "%s", jl_gf_name(v)->name);
        }
        else {
            n += JL_PRINTF(out, "<# function>");
        }
    }
    else if (jl_typeis(v, jl_intrinsic_type)) {
        n += JL_PRINTF(out, "<# intrinsic function %d>", *(uint32_t*)jl_data_ptr(v));
    }
    else if (jl_is_int64(v)) {
        n += JL_PRINTF(out, "%d", jl_unbox_int64(v));
    }
    else if (jl_is_int32(v)) {
        n += JL_PRINTF(out, "%d", jl_unbox_int32(v));
    }
    else if (jl_typeis(v,jl_int16_type)) {
        n += JL_PRINTF(out, "%d", jl_unbox_int16(v));
    }
    else if (jl_typeis(v,jl_int8_type)) {
        n += JL_PRINTF(out, "%d", jl_unbox_int8(v));
    }
    else if (jl_is_uint64(v)) {
        n += JL_PRINTF(out, "0x%016x", jl_unbox_uint64(v));
    }
    else if (jl_is_uint32(v)) {
        n += JL_PRINTF(out, "0x%08x", jl_unbox_uint32(v));
    }
    else if (jl_typeis(v,jl_uint16_type)) {
        n += JL_PRINTF(out, "0x%04x", jl_unbox_uint16(v));
    }
    else if (jl_typeis(v,jl_uint8_type)) {
        n += JL_PRINTF(out, "0x%02x", jl_unbox_uint8(v));
    }
    else if (jl_is_cpointer(v)) {
#ifdef _P64
        n += JL_PRINTF(out, "0x%016x", jl_unbox_voidpointer(v));
#else
        n += JL_PRINTF(out, "0x%08x", jl_unbox_voidpointer(v));
#endif
    }
    else if (jl_is_float32(v)) {
        n += JL_PRINTF(out, "%g", jl_unbox_float32(v));
    }
    else if (jl_is_float64(v)) {
        n += JL_PRINTF(out, "%g", jl_unbox_float64(v));
    }
    else if (v == jl_true) {
        n += JL_PRINTF(out, "true");
    }
    else if (v == jl_false) {
        n += JL_PRINTF(out, "false");
    }
    else if (jl_is_byte_string(v)) {
        n += JL_PRINTF(out, "\"%s\"", jl_iostr_data(v));
    }
    else if (v == jl_bottom_type) {
        n += JL_PRINTF(out, "Void");
    }
    else if (jl_is_uniontype(v)) {
        n += JL_PRINTF(out, "Union");
        n += jl_static_show(out, (jl_value_t*)((jl_uniontype_t*)v)->types);
    }
    else if (jl_is_typector(v)) {
        n += jl_static_show(out, ((jl_typector_t*)v)->body);
    }
    else if (jl_is_typevar(v)) {
        n += JL_PRINTF(out, "%s", ((jl_tvar_t*)v)->name->name);
    }
    else if (jl_is_module(v)) {
        jl_module_t *m = (jl_module_t*)v;
        if (m->parent != m && m->parent != jl_main_module) {
            n += jl_static_show(out, (jl_value_t*)m->parent);
            n += JL_PRINTF(out, ".");
        }
        n += JL_PRINTF(out, "%s", m->name->name);
    }
    else if (jl_is_symbol(v)) {
        n += JL_PRINTF(out, ":%s", ((jl_sym_t*)v)->name);
    }
    else if (jl_is_symbolnode(v)) {
        n += JL_PRINTF(out, "%s::", jl_symbolnode_sym(v)->name);
        n += jl_static_show(out, jl_symbolnode_type(v));
    }
    else if (jl_is_getfieldnode(v)) {
        n += jl_static_show(out, jl_getfieldnode_val(v));
        n += JL_PRINTF(out, ".%s", jl_getfieldnode_name(v)->name);
        n += JL_PRINTF(out, "::");
        n += jl_static_show(out, jl_getfieldnode_type(v));
    }
    else if (jl_is_labelnode(v)) {
        n += JL_PRINTF(out, "%d:", jl_labelnode_label(v));
    }
    else if (jl_is_gotonode(v)) {
        n += JL_PRINTF(out, "goto %d", jl_gotonode_label(v));
    }
    else if (jl_is_quotenode(v)) {
        n += JL_PRINTF(out, "quote ");
        n += jl_static_show(out, jl_fieldref(v,0));
        n += JL_PRINTF(out, " end");
    }
    else if (jl_is_newvarnode(v)) {
        n += JL_PRINTF(out, "<newvar ");
        n += jl_static_show(out, jl_fieldref(v,0));
        n += JL_PRINTF(out, ">");
    }
    else if (jl_is_topnode(v)) {
        n += JL_PRINTF(out, "top(");
        n += jl_static_show(out, jl_fieldref(v,0));
        n += JL_PRINTF(out, ")");
    }
    else if (jl_is_linenode(v)) {
        n += JL_PRINTF(out, "# line %d", jl_linenode_line(v));
    }
    else if (jl_is_expr(v)) {
        jl_expr_t *e = (jl_expr_t*)v;
        if (e->head == assign_sym && jl_array_len(e->args) == 2) {
            n += jl_static_show(out, jl_exprarg(e,0));
            n += JL_PRINTF(out, " = ");
            n += jl_static_show(out, jl_exprarg(e,1));
        }
        else {
            char sep = ' ';
            if (e->head == body_sym)
                sep = '\n';
            n += JL_PRINTF(out, "Expr(:%s", e->head->name);
            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(out, jl_exprarg(e,i));
            }
            n += JL_PRINTF(out, ")::");
            n += jl_static_show(out, e->etype);
        }
    }
    else if (jl_is_array(v)) {
        n += jl_static_show(out, jl_typeof(v));
        n += JL_PRINTF(out, "[");
        size_t j, tlen = jl_array_len(v);
        for (j = 0; j < tlen; j++) {
            n += jl_static_show(out, jl_arrayref((jl_array_t*)v,j));
            if (j != tlen-1)
               n += JL_PRINTF(out, ", ");
        }
        n += JL_PRINTF(out, "]");
    }
    else if (jl_typeis(v,jl_loaderror_type)) {
        n += JL_PRINTF(out, "LoadError(at ");
        n += jl_static_show(out, jl_fieldref(v, 0));
        n += JL_PRINTF(out, " line ");
        n += jl_static_show(out, jl_fieldref(v, 1));
        n += JL_PRINTF(out, ": ");
        n += jl_static_show(out, jl_fieldref(v, 2));
        n += JL_PRINTF(out, ")");
    }
    else if (jl_typeis(v,jl_errorexception_type)) {
        n += JL_PRINTF(out, "ErrorException(");
        n += jl_static_show(out, jl_fieldref(v, 0));
        n += JL_PRINTF(out, ")");
    }
    else if (jl_is_datatype(jl_typeof(v))) {
        jl_datatype_t *t = (jl_datatype_t*)jl_typeof(v);
        n += jl_static_show(out, (jl_value_t*)t);
        n += JL_PRINTF(out, "(");
        size_t nb = jl_datatype_size(t);
        size_t tlen = jl_tuple_len(t->names);
        if (nb > 0 && tlen == 0) {
            char *data = (char*)jl_data_ptr(v);
            n += JL_PRINTF(out, "0x");
            for(int i=nb-1; i >= 0; --i)
                n += JL_PRINTF(out, "%02hhx", data[i]);
        }
        else {
            jl_value_t *fldval=NULL;
            JL_GC_PUSH1(&fldval);
            for (size_t i = 0; i < tlen; i++) {
                n += JL_PRINTF(out, ((jl_sym_t*)jl_tupleref(t->names, i))->name);
                //jl_fielddesc_t f = t->fields[i];
                n += JL_PRINTF(out, "=");
                fldval = jl_get_nth_field(v, i);
                n += jl_static_show(out, fldval);
                if (i != tlen-1)
                    n += JL_PRINTF(out, ", ");
            }
            JL_GC_POP();
        }
        n += JL_PRINTF(out, ")");
    }
    else {
        n += JL_PRINTF(out, "<?::");
        n += jl_static_show(out, jl_typeof(v));
        n += JL_PRINTF(out, ">");
    }
    return n;
}
Exemple #13
0
static jl_value_t *eval(jl_value_t *e, jl_value_t **locals, size_t nl)
{
    if (jl_is_symbol(e)) {
        jl_value_t *v;
        size_t i;
        for(i=0; i < nl; i++) {
            if (locals[i*2] == e) {
                v = locals[i*2+1];
                break;
            }
        }
        if (i >= nl) {
            v = jl_get_global(jl_current_module, (jl_sym_t*)e);
        }
        if (v == NULL) {
            jl_undefined_var_error((jl_sym_t*)e);
        }
        return v;
    }
    if (jl_is_symbolnode(e)) {
        return eval((jl_value_t*)jl_symbolnode_sym(e), locals, nl);
    }
    if (jl_is_quotenode(e)) {
        return jl_fieldref(e,0);
    }
    if (jl_is_topnode(e)) {
        jl_sym_t *s = (jl_sym_t*)jl_fieldref(e,0);
        jl_value_t *v = jl_get_global(jl_base_relative_to(jl_current_module),s);
        if (v == NULL)
            jl_undefined_var_error(s);
        return v;
    }
    if (!jl_is_expr(e)) {
        if (jl_is_getfieldnode(e)) {
            jl_value_t *v = eval(jl_getfieldnode_val(e), locals, nl);
            jl_value_t *gfargs[2] = {v, (jl_value_t*)jl_getfieldnode_name(e)};
            return jl_f_get_field(NULL, gfargs, 2);
        }
        if (jl_is_lambda_info(e)) {
            jl_lambda_info_t *li = (jl_lambda_info_t*)e;
            if (jl_boot_file_loaded && li->ast && jl_is_expr(li->ast)) {
                li->ast = jl_compress_ast(li, li->ast);
            }
            return (jl_value_t*)jl_new_closure(NULL, (jl_value_t*)jl_null, li);
        }
        if (jl_is_linenode(e)) {
            jl_lineno = jl_linenode_line(e);
        }
        if (jl_is_newvarnode(e)) {
            jl_value_t *var = jl_fieldref(e,0);
            assert(jl_is_symbol(var));
            for(size_t i=0; i < nl; i++) {
                if (locals[i*2] == var) {
                    locals[i*2+1] = NULL;
                    break;
                }
            }
            return (jl_value_t*)jl_nothing;
        }
        return e;
    }
    jl_expr_t *ex = (jl_expr_t*)e;
    jl_value_t **args = &jl_cellref(ex->args,0);
    size_t nargs = jl_array_len(ex->args);
    if (ex->head == call_sym ||  ex->head == call1_sym) {
        if (jl_is_lambda_info(args[0])) {
            // directly calling an inner function ("let")
            jl_lambda_info_t *li = (jl_lambda_info_t*)args[0];
            if (jl_is_expr(li->ast) && !jl_lam_vars_captured((jl_expr_t*)li->ast) &&
                !jl_has_intrinsics((jl_expr_t*)li->ast)) {
                size_t na = nargs-1;
                if (na == 0)
                    return jl_interpret_toplevel_thunk(li);
                jl_array_t *formals = jl_lam_args((jl_expr_t*)li->ast);
                size_t nreq = jl_array_len(formals);
                if (nreq==0 || !jl_is_rest_arg(jl_cellref(formals,nreq-1))) {
                    jl_value_t **ar;
                    JL_GC_PUSHARGS(ar, na*2);
                    for(int i=0; i < na*2; i++) {
                        ar[i] = NULL;
                    }
                    for(int i=0; i < na; i++) {
                        ar[i*2+1] = eval(args[i+1], locals, nl);
                    }
                    if (na != nreq) {
                        jl_error("wrong number of arguments");
                    }
                    for(int i=0; i < na; i++) {
                        ar[i*2] = (jl_value_t*)jl_decl_var(jl_cellref(formals,i));
                    }
                    jl_value_t *ret = jl_interpret_toplevel_thunk_with(li, ar, na);
                    JL_GC_POP();
                    return ret;
                }
            }
        }
        jl_function_t *f = (jl_function_t*)eval(args[0], locals, nl);
        if (!jl_is_func(f))
            jl_type_error("apply", (jl_value_t*)jl_function_type,
                          (jl_value_t*)f);
        return do_call(f, &args[1], nargs-1, locals, nl);
    }
    else if (ex->head == assign_sym) {
        jl_value_t *sym = args[0];
        assert(jl_is_symbol(sym));
        size_t i;
        for (i=0; i < nl; i++) {
            if (locals[i*2] == sym) {
                return (locals[i*2+1] = eval(args[1], locals, nl));
            }
        }
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)sym);
        jl_value_t *rhs = eval(args[1], locals, nl);
        jl_checked_assignment(b, rhs);
        return rhs;
    }
    else if (ex->head == new_sym) {
        jl_value_t *thetype = eval(args[0], locals, nl);
        jl_value_t *v=NULL;
        JL_GC_PUSH2(&thetype, &v);
        assert(jl_is_structtype(thetype));
        v = jl_new_struct_uninit((jl_datatype_t*)thetype);
        for(size_t i=1; i < nargs; i++) {
            jl_set_nth_field(v, i-1, eval(args[i], locals, nl));
        }
        JL_GC_POP();
        return v;
    }
    else if (ex->head == null_sym) {
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == body_sym) {
        return eval_body(ex->args, locals, nl, 0, 0);
    }
    else if (ex->head == exc_sym) {
        return jl_exception_in_transit;
    }
    else if (ex->head == static_typeof_sym) {
        return (jl_value_t*)jl_any_type;
    }
    else if (ex->head == method_sym) {
        jl_sym_t *fname = (jl_sym_t*)args[0];
        jl_value_t **bp=NULL;
        jl_binding_t *b=NULL;
        jl_value_t *gf=NULL;
        int kw=0;
        if (jl_is_expr(fname)) {
            if (((jl_expr_t*)fname)->head == kw_sym) {
                kw = 1;
                fname = (jl_sym_t*)jl_exprarg(fname, 0);
            }
            gf = eval((jl_value_t*)fname, locals, nl);
            assert(jl_is_function(gf));
            assert(jl_is_gf(gf));
            if (jl_is_expr(fname))
                fname = (jl_sym_t*)jl_fieldref(jl_exprarg(fname, 2), 0);
            if (!kw)
                bp = &gf;
            else
                bp = (jl_value_t**)&((jl_methtable_t*)((jl_function_t*)gf)->env)->kwsorter;
            assert(jl_is_symbol(fname));
        }
        else {
            for (size_t i=0; i < nl; i++) {
                if (locals[i*2] == (jl_value_t*)fname) {
                    bp = &locals[i*2+1];
                    break;
                }
            }
            if (bp == NULL) {
                b = jl_get_binding_for_method_def(jl_current_module, fname);
                bp = &b->value;
            }
        }
        jl_value_t *atypes=NULL, *meth=NULL;
        JL_GC_PUSH2(&atypes, &meth);
        atypes = eval(args[1], locals, nl);
        if (jl_is_lambda_info(args[2])) {
            jl_check_static_parameter_conflicts((jl_lambda_info_t*)args[2], (jl_tuple_t*)jl_t1(atypes), fname);
        }
        meth = eval(args[2], locals, nl);
        jl_method_def(fname, bp, b, (jl_tuple_t*)atypes, (jl_function_t*)meth);
        JL_GC_POP();
        return *bp;
    }
    else if (ex->head == copyast_sym) {
        return jl_copy_ast(eval(args[0], locals, nl));
    }
    else if (ex->head == const_sym) {
        jl_value_t *sym = args[0];
        assert(jl_is_symbol(sym));
        for (size_t i=0; i < nl; i++) {
            if (locals[i*2] == sym) {
                return (jl_value_t*)jl_nothing;
            }
        }
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)sym);
        jl_declare_constant(b);
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == global_sym) {
        // create uninitialized mutable binding for "global x" decl
        // TODO: handle type decls
        for (size_t i=0; i < jl_array_len(ex->args); i++) {
            assert(jl_is_symbol(args[i]));
            jl_get_binding_wr(jl_current_module, (jl_sym_t*)args[i]);
        }
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == abstracttype_sym) {
        jl_value_t *name = args[0];
        jl_value_t *para = eval(args[1], locals, nl);
        jl_value_t *super = NULL;
        jl_value_t *temp = NULL;
        JL_GC_PUSH3(&para, &super, &temp);
        assert(jl_is_tuple(para));
        assert(jl_is_symbol(name));
        jl_datatype_t *dt =
            jl_new_abstracttype(name, jl_any_type, (jl_tuple_t*)para);
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)name);
        temp = b->value;
        check_can_assign_type(b);
        b->value = (jl_value_t*)dt;
        super = eval(args[2], locals, nl);
        jl_set_datatype_super(dt, super);
        b->value = temp;
        if (temp==NULL || !equiv_type(dt, (jl_datatype_t*)temp)) {
            jl_checked_assignment(b, (jl_value_t*)dt);
        }
        JL_GC_POP();
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == bitstype_sym) {
        jl_value_t *name = args[0];
        jl_value_t *super = NULL, *para = NULL, *vnb = NULL, *temp = NULL;
        JL_GC_PUSH3(&para, &super, &temp);
        assert(jl_is_symbol(name));
        para = eval(args[1], locals, nl);
        assert(jl_is_tuple(para));
        vnb  = eval(args[2], locals, nl);
        if (!jl_is_long(vnb))
            jl_errorf("invalid declaration of bits type %s", ((jl_sym_t*)name)->name);
        int32_t nb = jl_unbox_long(vnb);
        if (nb < 1 || nb>=(1<<23) || (nb&7) != 0)
            jl_errorf("invalid number of bits in type %s",
                      ((jl_sym_t*)name)->name);
        jl_datatype_t *dt =
            jl_new_bitstype(name, jl_any_type, (jl_tuple_t*)para, nb);
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)name);
        temp = b->value;
        check_can_assign_type(b);
        b->value = (jl_value_t*)dt;
        super = eval(args[3], locals, nl);
        jl_set_datatype_super(dt, super);
        b->value = temp;
        if (temp==NULL || !equiv_type(dt, (jl_datatype_t*)temp)) {
            jl_checked_assignment(b, (jl_value_t*)dt);
        }
        JL_GC_POP();
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == compositetype_sym) {
        void jl_add_constructors(jl_datatype_t *t);
        jl_value_t *name = args[0];
        assert(jl_is_symbol(name));
        jl_value_t *para = eval(args[1], locals, nl);
        assert(jl_is_tuple(para));
        jl_value_t *temp = NULL;
        jl_value_t *super = NULL;
        jl_datatype_t *dt = NULL;
        JL_GC_PUSH4(&para, &super, &temp, &dt);
        temp = eval(args[2], locals, nl);  // field names
        dt = jl_new_datatype((jl_sym_t*)name, jl_any_type, (jl_tuple_t*)para,
                             (jl_tuple_t*)temp, NULL,
                             0, args[6]==jl_true ? 1 : 0);
        dt->fptr = jl_f_ctor_trampoline;
        dt->name->ctor_factory = eval(args[3], locals, nl);

        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)name);
        temp = b->value;  // save old value
        // temporarily assign so binding is available for field types
        check_can_assign_type(b);
        b->value = (jl_value_t*)dt;

        JL_TRY {
            // operations that can fail
            inside_typedef = 1;
            dt->types = (jl_tuple_t*)eval(args[5], locals, nl);
            inside_typedef = 0;
            jl_check_type_tuple(dt->types, dt->name->name, "type definition");
            super = eval(args[4], locals, nl);
            jl_set_datatype_super(dt, super);
        }
        JL_CATCH {
            b->value = temp;
            jl_rethrow();
        }
        for(size_t i=0; i < jl_tuple_len(para); i++) {
            ((jl_tvar_t*)jl_tupleref(para,i))->bound = 0;
        }
        jl_compute_field_offsets(dt);

        b->value = temp;
        if (temp==NULL || !equiv_type(dt, (jl_datatype_t*)temp)) {
            jl_checked_assignment(b, (jl_value_t*)dt);

            jl_add_constructors(dt);
        }
        else {
            // TODO: remove all old ctors and set temp->name->ctor_factory = dt->name->ctor_factory
        }

        JL_GC_POP();
        return (jl_value_t*)jl_nothing;
    }
Exemple #14
0
jl_value_t *jl_method_def(jl_sym_t *name, jl_value_t **bp, jl_binding_t *bnd,
                          jl_tuple_t *argtypes, jl_function_t *f, jl_tuple_t *t)
{
    jl_value_t *gf;
    if (bnd) {
        //jl_declare_constant(bnd);
        if (bnd->value != NULL && !bnd->constp) {
            jl_errorf("cannot define function %s; it already has a value",
                      bnd->name->name);
        }
        bnd->constp = 1;
    }
    if (*bp == NULL) {
        gf = (jl_value_t*)jl_new_generic_function(name);
        *bp = gf;
    }
    else {
        gf = *bp;
        if (!jl_is_gf(gf)) {
            if (jl_is_datatype(gf) &&
                ((jl_function_t*)gf)->fptr == jl_f_ctor_trampoline) {
                jl_add_constructors((jl_datatype_t*)gf);
            }
            if (!jl_is_gf(gf)) {
                jl_error("invalid method definition: not a generic function");
            }
        }
    }
    JL_GC_PUSH1(&gf);
    assert(jl_is_function(f));
    assert(jl_is_tuple(argtypes));
    assert(jl_is_tuple(t));

    for(size_t i=0; i < jl_tuple_len(argtypes); i++) {
        jl_value_t *elt = jl_tupleref(argtypes,i);
        if (!jl_is_type(elt) && !jl_is_typevar(elt)) {
            jl_lambda_info_t *li = f->linfo;
            jl_errorf("invalid type for argument %s in method definition for %s at %s:%d",
                      jl_is_expr(li->ast) ?
                      ((jl_sym_t*)jl_arrayref(jl_lam_args((jl_expr_t*)li->ast),i))->name :
                      "?",
                      name->name, li->file->name, li->line);
        }
    }

    int ishidden = !!strchr(name->name, '#');
    for(size_t i=0; i < jl_tuple_len(t); i++) {
        jl_value_t *tv = jl_tupleref(t,i);
        if (!jl_is_typevar(tv))
            jl_type_error_rt(name->name, "method definition", (jl_value_t*)jl_tvar_type, tv);
        if (!ishidden && !type_contains((jl_value_t*)argtypes, tv)) {
            JL_PRINTF(JL_STDERR, "Warning: static parameter %s does not occur in signature for %s",
                      ((jl_tvar_t*)tv)->name->name, name->name);
            print_func_loc(JL_STDERR, f->linfo);
            JL_PRINTF(JL_STDERR, ".\nThe method will not be callable.\n");
        }
    }
    jl_add_method((jl_function_t*)gf, argtypes, f, t);
    if (jl_boot_file_loaded &&
        f->linfo && f->linfo->ast && jl_is_expr(f->linfo->ast)) {
        jl_lambda_info_t *li = f->linfo;
        li->ast = jl_compress_ast(li, li->ast);
    }
    JL_GC_POP();
    return gf;
}
Exemple #15
0
static jl_value_t *eval(jl_value_t *e, jl_value_t **locals, size_t nl)
{
    if (jl_is_symbol(e)) {
        jl_value_t *v;
        size_t i;
        for(i=0; i < nl; i++) {
            if (locals[i*2] == e) {
                v = locals[i*2+1];
                break;
            }
        }
        if (i >= nl) {
            v = jl_get_global(jl_current_module, (jl_sym_t*)e);
        }
        if (v == NULL) {
            jl_errorf("%s not defined", ((jl_sym_t*)e)->name);
        }
        return v;
    }
    if (jl_is_symbolnode(e)) {
        return eval((jl_value_t*)jl_symbolnode_sym(e), locals, nl);
    }
    if (jl_is_quotenode(e)) {
        return jl_fieldref(e,0);
    }
    if (jl_is_topnode(e)) {
        jl_sym_t *s = (jl_sym_t*)jl_fieldref(e,0);
        jl_value_t *v = jl_get_global(jl_base_relative_to(jl_current_module),s);
        if (v == NULL)
            jl_errorf("%s not defined", s->name);
        return v;
    }
    if (!jl_is_expr(e)) {
        if (jl_is_getfieldnode(e)) {
            jl_value_t *v = eval(jl_getfieldnode_val(e), locals, nl);
            jl_value_t *gfargs[2] = {v, (jl_value_t*)jl_getfieldnode_name(e)};
            return jl_f_get_field(NULL, gfargs, 2);
        }
        if (jl_is_lambda_info(e)) {
            return (jl_value_t*)jl_new_closure(NULL, (jl_value_t*)jl_null,
                                               (jl_lambda_info_t*)e);
        }
        if (jl_is_linenode(e)) {
            jl_lineno = jl_linenode_line(e);
        }
        return e;
    }
    jl_expr_t *ex = (jl_expr_t*)e;
    jl_value_t **args = &jl_cellref(ex->args,0);
    size_t nargs = jl_array_len(ex->args);
    if (ex->head == call_sym ||  ex->head == call1_sym) {
        jl_function_t *f = (jl_function_t*)eval(args[0], locals, nl);
        if (!jl_is_func(f))
            jl_type_error("apply", (jl_value_t*)jl_function_type,
                          (jl_value_t*)f);
        return do_call(f, &args[1], nargs-1, locals, nl);
    }
    else if (ex->head == assign_sym) {
        jl_value_t *sym = args[0];
        size_t i;
        for (i=0; i < nl; i++) {
            if (locals[i*2] == sym) {
                return (locals[i*2+1] = eval(args[1], locals, nl));
            }
        }
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)sym);
        jl_value_t *rhs = eval(args[1], locals, nl);
        jl_checked_assignment(b, rhs);
        return rhs;
    }
    else if (ex->head == new_sym) {
        jl_value_t *thetype = eval(args[0], locals, nl);
        jl_value_t *v=NULL;
        JL_GC_PUSH(&thetype, &v);
        assert(jl_is_structtype(thetype));
        v = jl_new_struct_uninit((jl_datatype_t*)thetype);
        for(size_t i=1; i < nargs; i++) {
            jl_set_nth_field(v, i-1, eval(args[i], locals, nl));
        }
        JL_GC_POP();
        return v;
    }
    else if (ex->head == null_sym) {
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == body_sym) {
        return eval_body(ex->args, locals, nl, 0);
    }
    else if (ex->head == exc_sym) {
        return jl_exception_in_transit;
    }
    else if (ex->head == static_typeof_sym) {
        return (jl_value_t*)jl_any_type;
    }
    else if (ex->head == method_sym) {
        jl_sym_t *fname = (jl_sym_t*)args[0];
        jl_value_t **bp=NULL;
        jl_binding_t *b=NULL;
        jl_value_t *gf=NULL;
        int kw=0;
        if (jl_is_expr(fname)) {
            if (((jl_expr_t*)fname)->head == kw_sym) {
                kw = 1;
                fname = (jl_sym_t*)jl_exprarg(fname, 0);
            }
            gf = eval((jl_value_t*)fname, locals, nl);
            assert(jl_is_function(gf));
            assert(jl_is_gf(gf));
            if (!kw) {
                fname = (jl_sym_t*)jl_fieldref(jl_exprarg(fname, 2), 0);
                bp = &gf;
            }
            else {
                bp = (jl_value_t**)&((jl_methtable_t*)((jl_function_t*)gf)->env)->kwsorter;
            }
            assert(jl_is_symbol(fname));
        }
        else {
            for (size_t i=0; i < nl; i++) {
                if (locals[i*2] == (jl_value_t*)fname) {
                    bp = &locals[i*2+1];
                    break;
                }
            }
            if (bp == NULL) {
                b = jl_get_binding_for_method_def(jl_current_module, fname);
                bp = &b->value;
            }
        }
        jl_value_t *atypes=NULL, *meth=NULL, *tvars=NULL;
        JL_GC_PUSH(&atypes, &meth, &tvars);
        atypes = eval(args[1], locals, nl);
        meth = eval(args[2], locals, nl);
        tvars = eval(args[3], locals, nl);
        jl_method_def(fname, bp, b, (jl_tuple_t*)atypes,
                      (jl_function_t*)meth, (jl_tuple_t*)tvars);
        JL_GC_POP();
        return *bp;
    }
    else if (ex->head == const_sym) {
        jl_value_t *sym = args[0];
        for (size_t i=0; i < nl; i++) {
            if (locals[i*2] == sym) {
                return (jl_value_t*)jl_nothing;
            }
        }
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)sym);
        jl_declare_constant(b);
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == global_sym) {
        // create uninitialized mutable binding for "global x" decl
        // TODO: handle type decls
        for (size_t i=0; i < jl_array_len(ex->args); i++) {
            assert(jl_is_symbol(args[i]));
            jl_get_binding_wr(jl_current_module, (jl_sym_t*)args[i]);
        }
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == abstracttype_sym) {
        jl_value_t *name = args[0];
        jl_value_t *para = eval(args[1], locals, nl);
        jl_value_t *super = NULL;
        JL_GC_PUSH(&para, &super);
        jl_datatype_t *dt =
            jl_new_abstracttype(name, jl_any_type, (jl_tuple_t*)para);
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)name);
        jl_checked_assignment(b, (jl_value_t*)dt);
        super = eval(args[2], locals, nl);
        jl_set_datatype_super(dt, super);
        JL_GC_POP();
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == bitstype_sym) {
        jl_value_t *name = args[0];
        jl_value_t *super = NULL, *para = NULL, *vnb = NULL;
        JL_GC_PUSH(&para, &super, &vnb);
        para = eval(args[1], locals, nl);
        vnb  = eval(args[2], locals, nl);
        if (!jl_is_long(vnb))
            jl_errorf("invalid declaration of bits type %s", ((jl_sym_t*)name)->name);
        int32_t nb = jl_unbox_long(vnb);
        if (nb < 1 || nb>=(1<<23) || (nb&7) != 0)
            jl_errorf("invalid number of bits in type %s",
                      ((jl_sym_t*)name)->name);
        jl_datatype_t *dt =
            jl_new_bitstype(name, jl_any_type, (jl_tuple_t*)para, nb);
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)name);
        jl_checked_assignment(b, (jl_value_t*)dt);
        super = eval(args[3], locals, nl);
        jl_set_datatype_super(dt, super);
        JL_GC_POP();
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == compositetype_sym) {
        void jl_add_constructors(jl_datatype_t *t);
        jl_value_t *name = args[0];
        jl_value_t *para = eval(args[1], locals, nl);
        jl_value_t *fnames = NULL;
        jl_value_t *super = NULL;
        jl_datatype_t *dt = NULL;
        JL_GC_PUSH(&para, &super, &fnames, &dt);
        fnames = eval(args[2], locals, nl);
        dt = jl_new_datatype((jl_sym_t*)name, jl_any_type, (jl_tuple_t*)para,
                             (jl_tuple_t*)fnames, NULL,
                             0, args[6]==jl_true ? 1 : 0);
        dt->fptr = jl_f_ctor_trampoline;
        dt->ctor_factory = eval(args[3], locals, nl);
        jl_binding_t *b = jl_get_binding_wr(jl_current_module, (jl_sym_t*)name);
        jl_checked_assignment(b, (jl_value_t*)dt);
        inside_typedef = 1;
        dt->types = (jl_tuple_t*)eval(args[5], locals, nl);
        inside_typedef = 0;
        jl_check_type_tuple(dt->types, dt->name->name, "type definition");
        super = eval(args[4], locals, nl);
        jl_set_datatype_super(dt, super);
        jl_compute_field_offsets(dt);
        jl_add_constructors(dt);
        JL_GC_POP();
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == macro_sym) {
        jl_sym_t *nm = (jl_sym_t*)args[0];
        assert(jl_is_symbol(nm));
        jl_function_t *f = (jl_function_t*)eval(args[1], locals, nl);
        assert(jl_is_function(f));
        if (jl_boot_file_loaded &&
            f->linfo && f->linfo->ast && jl_is_expr(f->linfo->ast)) {
            jl_lambda_info_t *li = f->linfo;
            li->ast = jl_compress_ast(li, li->ast);
            li->name = nm;
        }
        jl_set_global(jl_current_module, nm, (jl_value_t*)f);
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == line_sym) {
        jl_lineno = jl_unbox_long(jl_exprarg(ex,0));
        return (jl_value_t*)jl_nothing;
    }
    else if (ex->head == module_sym) {
        return jl_eval_module_expr(ex);
    }
    else if (ex->head == error_sym || ex->head == jl_continue_sym) {
        if (jl_is_byte_string(args[0]))
            jl_errorf("syntax: %s", jl_string_data(args[0]));
        jl_throw(args[0]);
    }
    jl_errorf("unsupported or misplaced expression %s", ex->head->name);
    return (jl_value_t*)jl_nothing;
}
Exemple #16
0
DLLEXPORT jl_value_t *jl_method_def(jl_sym_t *name, jl_value_t **bp, jl_binding_t *bnd,
                                    jl_tuple_t *argtypes, jl_function_t *f, jl_value_t *isstaged,
                                    jl_value_t *call_func, int iskw)
{
    // argtypes is a tuple ((types...), (typevars...))
    jl_tuple_t *t = (jl_tuple_t*)jl_t1(argtypes);
    argtypes = (jl_tuple_t*)jl_t0(argtypes);
    jl_value_t *gf=NULL;
    JL_GC_PUSH3(&gf, &argtypes, &t);

    if (bnd && bnd->value != NULL && !bnd->constp) {
        jl_errorf("cannot define function %s; it already has a value",
                  bnd->name->name);
    }

    if (*bp != NULL) {
        gf = *bp;
        if (!jl_is_gf(gf)) {
            if (jl_is_datatype(gf)) {
                // DataType: define `call`, for backwards compat with outer constructors
                if (call_func == NULL)
                    call_func = (jl_value_t*)jl_module_call_func(jl_current_module);
                size_t na = jl_tuple_len(argtypes);
                jl_tuple_t *newargtypes = jl_alloc_tuple(1 + na);
                JL_GC_PUSH1(&newargtypes);
                size_t i=0;
                if (iskw) {
                    assert(na > 0);
                    // for kw sorter, keep container argument first
                    jl_tupleset(newargtypes, 0, jl_tupleref(argtypes, 0));
                    i++;
                }
                jl_tupleset(newargtypes, i, jl_wrap_Type(gf));
                i++;
                for(; i < na+1; i++) {
                    jl_tupleset(newargtypes, i, jl_tupleref(argtypes, i-1));
                }
                argtypes = newargtypes;
                JL_GC_POP();
                gf = call_func;
                name = call_sym;
                // edit args, insert type first
                if (!jl_is_expr(f->linfo->ast))
                    f->linfo->ast = jl_uncompress_ast(f->linfo, f->linfo->ast);
                jl_array_t *al = jl_lam_args((jl_expr_t*)f->linfo->ast);
                if (jl_array_len(al) == 0) {
                    al = jl_alloc_cell_1d(1);
                    jl_exprarg(f->linfo->ast, 0) = (jl_value_t*)al;
                }
                else {
                    jl_array_grow_beg(al, 1);
                }
                if (iskw) {
                    jl_cellset(al, 0, jl_cellref(al, 1));
                    jl_cellset(al, 1, (jl_value_t*)jl_gensym());
                }
                else {
                    jl_cellset(al, 0, (jl_value_t*)jl_gensym());
                }
            }
            if (!jl_is_gf(gf)) {
                jl_error("invalid method definition: not a generic function");
            }
        }
        if (iskw) {
            bp = (jl_value_t**)&((jl_methtable_t*)((jl_function_t*)gf)->env)->kwsorter;
            gf = *bp;
        }
    }

    size_t na = jl_tuple_len(argtypes);
    for(size_t i=0; i < na; i++) {
        jl_value_t *elt = jl_tupleref(argtypes,i);
        if (!jl_is_type(elt) && !jl_is_typevar(elt)) {
            jl_lambda_info_t *li = f->linfo;
            jl_errorf("invalid type for argument %s in method definition for %s at %s:%d",
                      jl_lam_argname(li,i)->name, name->name, li->file->name, li->line);
        }
    }

    int ishidden = !!strchr(name->name, '#');
    for(size_t i=0; i < jl_tuple_len(t); i++) {
        jl_value_t *tv = jl_tupleref(t,i);
        if (!jl_is_typevar(tv))
            jl_type_error_rt(name->name, "method definition", (jl_value_t*)jl_tvar_type, tv);
        if (!ishidden && !type_contains((jl_value_t*)argtypes, tv)) {
            JL_PRINTF(JL_STDERR, "Warning: static parameter %s does not occur in signature for %s",
                      ((jl_tvar_t*)tv)->name->name, name->name);
            print_func_loc(JL_STDERR, f->linfo);
            JL_PRINTF(JL_STDERR, ".\nThe method will not be callable.\n");
        }
    }

    if (bnd) {
        bnd->constp = 1;
    }
    if (*bp == NULL) {
        gf = (jl_value_t*)jl_new_generic_function(name);
        *bp = gf;
    }
    assert(jl_is_function(f));
    assert(jl_is_tuple(argtypes));
    assert(jl_is_tuple(t));

    jl_add_method((jl_function_t*)gf, argtypes, f, t, isstaged == jl_true);
    if (jl_boot_file_loaded &&
        f->linfo && f->linfo->ast && jl_is_expr(f->linfo->ast)) {
        jl_lambda_info_t *li = f->linfo;
        li->ast = jl_compress_ast(li, li->ast);
    }
    JL_GC_POP();
    return gf;
}
Exemple #17
0
DLLEXPORT jl_value_t *jl_method_def(jl_sym_t *name, jl_value_t **bp, jl_value_t *bp_owner,
                                    jl_binding_t *bnd,
                                    jl_svec_t *argdata, jl_function_t *f, jl_value_t *isstaged,
                                    jl_value_t *call_func, int iskw)
{
    jl_module_t *module = (bnd ? bnd->owner : NULL);
    // argdata is svec({types...}, svec(typevars...))
    jl_tupletype_t *argtypes = (jl_tupletype_t*)jl_svecref(argdata,0);
    jl_svec_t *tvars = (jl_svec_t*)jl_svecref(argdata,1);
    jl_value_t *gf = NULL;
    JL_GC_PUSH4(&gf, &tvars, &argtypes, &f);

    if (bnd && bnd->value != NULL && !bnd->constp) {
        jl_errorf("cannot define function %s; it already has a value", bnd->name->name);
    }

    if (*bp != NULL) {
        gf = *bp;
        if (!jl_is_gf(gf)) {
            if (jl_is_datatype(gf)) {
                // DataType: define `call`, for backwards compat with outer constructors
                if (call_func == NULL)
                    call_func = (jl_value_t*)jl_module_call_func(jl_current_module);
                size_t na = jl_nparams(argtypes);
                jl_svec_t *newargtypes = jl_alloc_svec(1 + na);
                jl_lambda_info_t *new_linfo = NULL;
                JL_GC_PUSH2(&newargtypes, &new_linfo);
                new_linfo = jl_copy_lambda_info(f->linfo);
                f = jl_new_closure(f->fptr, f->env, new_linfo);
                size_t i=0;
                if (iskw) {
                    assert(na > 0);
                    // for kw sorter, keep container argument first
                    jl_svecset(newargtypes, 0, jl_tparam(argtypes, 0));
                    i++;
                }
                jl_svecset(newargtypes, i, jl_wrap_Type(gf));
                i++;
                for(; i < na+1; i++) {
                    jl_svecset(newargtypes, i, jl_tparam(argtypes, i-1));
                }
                argtypes = jl_apply_tuple_type(newargtypes);
                JL_GC_POP();
                gf = call_func;
                name = call_sym;
                // edit args, insert type first
                if (!jl_is_expr(f->linfo->ast)) {
                    f->linfo->ast = jl_uncompress_ast(f->linfo, f->linfo->ast);
                    jl_gc_wb(f->linfo, f->linfo->ast);
                }
                else {
                    // Do not mutate the original ast since it might
                    // be reused somewhere else
                    f->linfo->ast = jl_copy_ast(f->linfo->ast);
                    jl_gc_wb(f->linfo, f->linfo->ast);
                }
                jl_array_t *al = jl_lam_args((jl_expr_t*)f->linfo->ast);
                if (jl_array_len(al) == 0) {
                    al = jl_alloc_cell_1d(1);
                    jl_exprargset(f->linfo->ast, 0, (jl_value_t*)al);
                }
                else {
                    jl_array_grow_beg(al, 1);
                }
                if (iskw) {
                    jl_cellset(al, 0, jl_cellref(al, 1));
                    jl_cellset(al, 1, (jl_value_t*)jl_gensym());
                }
                else {
                    jl_cellset(al, 0, (jl_value_t*)jl_gensym());
                }
            }
            if (!jl_is_gf(gf)) {
                jl_errorf("cannot define function %s; it already has a value", name->name);
            }
        }
        if (iskw) {
            jl_methtable_t *mt = jl_gf_mtable(gf);
            assert(!module);
            module = mt->module;
            bp = (jl_value_t**)&mt->kwsorter;
            bp_owner = (jl_value_t*)mt;
            gf = *bp;
        }
    }

    // TODO
    size_t na = jl_nparams(argtypes);
    for(size_t i=0; i < na; i++) {
        jl_value_t *elt = jl_tparam(argtypes,i);
        if (!jl_is_type(elt) && !jl_is_typevar(elt)) {
            jl_lambda_info_t *li = f->linfo;
            jl_exceptionf(jl_argumenterror_type, "invalid type for argument %s in method definition for %s at %s:%d",
                          jl_lam_argname(li,i)->name, name->name, li->file->name, li->line);
        }
    }

    int ishidden = !!strchr(name->name, '#');
    for(size_t i=0; i < jl_svec_len(tvars); i++) {
        jl_value_t *tv = jl_svecref(tvars,i);
        if (!jl_is_typevar(tv))
            jl_type_error_rt(name->name, "method definition", (jl_value_t*)jl_tvar_type, tv);
        if (!ishidden && !type_contains((jl_value_t*)argtypes, tv)) {
            jl_printf(JL_STDERR, "WARNING: static parameter %s does not occur in signature for %s",
                      ((jl_tvar_t*)tv)->name->name, name->name);
            print_func_loc(JL_STDERR, f->linfo);
            jl_printf(JL_STDERR, ".\nThe method will not be callable.\n");
        }
    }

    if (bnd) {
        bnd->constp = 1;
    }
    if (*bp == NULL) {
        gf = (jl_value_t*)jl_new_generic_function(name, module);
        *bp = gf;
        if (bp_owner) jl_gc_wb(bp_owner, gf);
    }
    assert(jl_is_function(f));
    assert(jl_is_tuple_type(argtypes));
    assert(jl_is_svec(tvars));

    jl_add_method((jl_function_t*)gf, argtypes, f, tvars, isstaged == jl_true);
    if (jl_boot_file_loaded &&
        f->linfo && f->linfo->ast && jl_is_expr(f->linfo->ast)) {
        jl_lambda_info_t *li = f->linfo;
        li->ast = jl_compress_ast(li, li->ast);
        jl_gc_wb(li, li->ast);
    }
    JL_GC_POP();
    return gf;
}