interpreter.c
// This file is a part of Julia. License is MIT: https://julialang.org/license
#include <stdlib.h>
#include <setjmp.h>
#ifdef _OS_WINDOWS_
#include <malloc.h>
#endif
#include "julia.h"
#include "julia_internal.h"
#include "builtin_proto.h"
#include "julia_assert.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
jl_code_info_t *src; // contains the names and number of slots
jl_method_instance_t *mi; // MethodInstance we're executing, or NULL if toplevel
jl_module_t *module; // context for globals
jl_value_t **locals; // slots for holding local slots and ssavalues
jl_svec_t *sparam_vals; // method static parameters, if eval-ing a method body
size_t ip; // Points to the currently-evaluating statement
int preevaluation; // use special rules for pre-evaluating expressions
int continue_at; // statement index to jump to after leaving exception handler (0 if none)
} interpreter_state;
#include "interpreter-stacktrace.c"
static jl_value_t *eval_value(jl_value_t *e, interpreter_state *s);
static jl_value_t *eval_body(jl_array_t *stmts, interpreter_state *s, int start, int toplevel);
int jl_is_toplevel_only_expr(jl_value_t *e);
// type definition forms
extern int inside_typedef;
// this is a heuristic for allowing "redefining" a type to something identical
SECT_INTERP 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*)jl_field_names(dta), (jl_value_t*)jl_field_names(dtb)) &&
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;
}
SECT_INTERP static void check_can_assign_type(jl_binding_t *b, jl_value_t *rhs)
{
if (b->constp && b->value != NULL && jl_typeof(b->value) != jl_typeof(rhs))
jl_errorf("invalid redefinition of constant %s",
jl_symbol_name(b->name));
}
void jl_reinstantiate_inner_types(jl_datatype_t *t);
void jl_reset_instantiate_inner_types(jl_datatype_t *t);
SECT_INTERP void jl_set_datatype_super(jl_datatype_t *tt, jl_value_t *super)
{
if (!jl_is_datatype(super) || !jl_is_abstracttype(super) ||
tt->name == ((jl_datatype_t*)super)->name ||
jl_subtype(super,(jl_value_t*)jl_vararg_type) ||
jl_is_tuple_type(super) || jl_is_namedtuple_type(super) ||
jl_subtype(super,(jl_value_t*)jl_type_type) ||
super == (jl_value_t*)jl_builtin_type) {
jl_errorf("invalid subtyping in definition of %s",
jl_symbol_name(tt->name->name));
}
tt->super = (jl_datatype_t*)super;
jl_gc_wb(tt, tt->super);
}
static void eval_abstracttype(jl_expr_t *ex, interpreter_state *s)
{
jl_value_t **args = (jl_value_t**)jl_array_data(ex->args);
if (inside_typedef)
jl_error("cannot eval a new abstract type definition while defining another type");
jl_value_t *name = args[0];
jl_value_t *para = eval_value(args[1], s);
jl_value_t *super = NULL;
jl_value_t *temp = NULL;
jl_datatype_t *dt = NULL;
jl_value_t *w = NULL;
jl_module_t *modu = s->module;
JL_GC_PUSH4(¶, &super, &temp, &w);
assert(jl_is_svec(para));
if (jl_is_globalref(name)) {
modu = jl_globalref_mod(name);
name = (jl_value_t*)jl_globalref_name(name);
}
assert(jl_is_symbol(name));
dt = jl_new_abstracttype(name, modu, NULL, (jl_svec_t*)para);
w = dt->name->wrapper;
jl_binding_t *b = jl_get_binding_wr(modu, (jl_sym_t*)name, 1);
temp = b->value;
check_can_assign_type(b, w);
b->value = w;
jl_gc_wb_binding(b, w);
JL_TRY {
inside_typedef = 1;
super = eval_value(args[2], s);
jl_set_datatype_super(dt, super);
jl_reinstantiate_inner_types(dt);
}
JL_CATCH {
jl_reset_instantiate_inner_types(dt);
b->value = temp;
jl_rethrow();
}
b->value = temp;
if (temp == NULL || !equiv_type(dt, (jl_datatype_t*)jl_unwrap_unionall(temp))) {
jl_checked_assignment(b, w);
}
JL_GC_POP();
}
static void eval_primitivetype(jl_expr_t *ex, interpreter_state *s)
{
jl_value_t **args = (jl_value_t**)jl_array_data(ex->args);
if (inside_typedef)
jl_error("cannot eval a new primitive type definition while defining another type");
jl_value_t *name = args[0];
jl_value_t *super = NULL, *para = NULL, *vnb = NULL, *temp = NULL;
jl_datatype_t *dt = NULL;
jl_value_t *w = NULL;
jl_module_t *modu = s->module;
JL_GC_PUSH4(¶, &super, &temp, &w);
if (jl_is_globalref(name)) {
modu = jl_globalref_mod(name);
name = (jl_value_t*)jl_globalref_name(name);
}
assert(jl_is_symbol(name));
para = eval_value(args[1], s);
assert(jl_is_svec(para));
vnb = eval_value(args[2], s);
if (!jl_is_long(vnb))
jl_errorf("invalid declaration of primitive type %s",
jl_symbol_name((jl_sym_t*)name));
ssize_t nb = jl_unbox_long(vnb);
if (nb < 1 || nb >= (1 << 23) || (nb & 7) != 0)
jl_errorf("invalid number of bits in primitive type %s",
jl_symbol_name((jl_sym_t*)name));
dt = jl_new_primitivetype(name, modu, NULL, (jl_svec_t*)para, nb);
w = dt->name->wrapper;
jl_binding_t *b = jl_get_binding_wr(modu, (jl_sym_t*)name, 1);
temp = b->value;
check_can_assign_type(b, w);
b->value = w;
jl_gc_wb_binding(b, w);
JL_TRY {
inside_typedef = 1;
super = eval_value(args[3], s);
jl_set_datatype_super(dt, super);
jl_reinstantiate_inner_types(dt);
}
JL_CATCH {
jl_reset_instantiate_inner_types(dt);
b->value = temp;
jl_rethrow();
}
b->value = temp;
if (temp == NULL || !equiv_type(dt, (jl_datatype_t*)jl_unwrap_unionall(temp))) {
jl_checked_assignment(b, w);
}
JL_GC_POP();
}
static void eval_structtype(jl_expr_t *ex, interpreter_state *s)
{
jl_value_t **args = (jl_value_t**)jl_array_data(ex->args);
if (inside_typedef)
jl_error("cannot eval a new struct type definition while defining another type");
jl_value_t *name = args[0];
jl_value_t *para = eval_value(args[1], s);
jl_value_t *temp = NULL;
jl_value_t *super = NULL;
jl_datatype_t *dt = NULL;
jl_value_t *w = NULL;
jl_module_t *modu = s->module;
JL_GC_PUSH4(¶, &super, &temp, &w);
if (jl_is_globalref(name)) {
modu = jl_globalref_mod(name);
name = (jl_value_t*)jl_globalref_name(name);
}
assert(jl_is_symbol(name));
assert(jl_is_svec(para));
temp = eval_value(args[2], s); // field names
dt = jl_new_datatype((jl_sym_t*)name, modu, NULL, (jl_svec_t*)para,
(jl_svec_t*)temp, NULL,
0, args[5]==jl_true ? 1 : 0, jl_unbox_long(args[6]));
w = dt->name->wrapper;
jl_binding_t *b = jl_get_binding_wr(modu, (jl_sym_t*)name, 1);
temp = b->value; // save old value
// temporarily assign so binding is available for field types
check_can_assign_type(b, w);
b->value = w;
jl_gc_wb_binding(b, w);
JL_TRY {
inside_typedef = 1;
// operations that can fail
super = eval_value(args[3], s);
jl_set_datatype_super(dt, super);
dt->types = (jl_svec_t*)eval_value(args[4], s);
jl_gc_wb(dt, dt->types);
for (size_t i = 0; i < jl_svec_len(dt->types); i++) {
jl_value_t *elt = jl_svecref(dt->types, i);
if ((!jl_is_type(elt) && !jl_is_typevar(elt)) || jl_is_vararg_type(elt)) {
jl_type_error_rt(jl_symbol_name(dt->name->name),
"type definition",
(jl_value_t*)jl_type_type, elt);
}
}
jl_reinstantiate_inner_types(dt);
}
JL_CATCH {
jl_reset_instantiate_inner_types(dt);
b->value = temp;
jl_rethrow();
}
jl_compute_field_offsets(dt);
b->value = temp;
if (temp == NULL || !equiv_type(dt, (jl_datatype_t*)jl_unwrap_unionall(temp))) {
jl_checked_assignment(b, w);
}
JL_GC_POP();
}
// method definition form
static jl_value_t *eval_methoddef(jl_expr_t *ex, interpreter_state *s)
{
jl_value_t **args = (jl_value_t**)jl_array_data(ex->args);
jl_sym_t *fname = (jl_sym_t*)args[0];
jl_module_t *modu = s->module;
if (jl_is_globalref(fname)) {
modu = jl_globalref_mod(fname);
fname = jl_globalref_name(fname);
}
assert(jl_expr_nargs(ex) != 1 || jl_is_symbol(fname));
if (jl_is_symbol(fname)) {
jl_value_t *bp_owner = (jl_value_t*)modu;
jl_binding_t *b = jl_get_binding_for_method_def(modu, fname);
jl_value_t **bp = &b->value;
jl_value_t *gf = jl_generic_function_def(b->name, b->owner, bp, bp_owner, b);
if (jl_expr_nargs(ex) == 1)
return gf;
}
jl_value_t *atypes = NULL, *meth = NULL;
JL_GC_PUSH2(&atypes, &meth);
atypes = eval_value(args[1], s);
meth = eval_value(args[2], s);
jl_method_def((jl_svec_t*)atypes, (jl_code_info_t*)meth, s->module);
JL_GC_POP();
return jl_nothing;
}
// expression evaluator
SECT_INTERP static jl_value_t *do_call(jl_value_t **args, size_t nargs, interpreter_state *s)
{
jl_value_t **argv;
JL_GC_PUSHARGS(argv, nargs);
size_t i;
for(i=0; i < nargs; i++)
argv[i] = eval_value(args[i], s);
jl_value_t *result = jl_apply_generic(argv, nargs);
JL_GC_POP();
return result;
}
SECT_INTERP static jl_value_t *do_invoke(jl_value_t **args, size_t nargs, interpreter_state *s)
{
jl_value_t **argv;
JL_GC_PUSHARGS(argv, nargs - 1);
size_t i;
for (i = 1; i < nargs; i++)
argv[i - 1] = eval_value(args[i], s);
jl_method_instance_t *meth = (jl_method_instance_t*)args[0];
assert(jl_is_method_instance(meth));
jl_value_t *result = jl_call_method_internal(meth, argv, nargs - 1);
JL_GC_POP();
return result;
}
SECT_INTERP jl_value_t *jl_eval_global_var(jl_module_t *m, jl_sym_t *e)
{
jl_value_t *v = jl_get_global(m, e);
if (v == NULL)
jl_undefined_var_error(e);
return v;
}
SECT_INTERP static int jl_source_nslots(jl_code_info_t *src)
{
return jl_array_len(src->slotflags);
}
SECT_INTERP static int jl_source_nssavalues(jl_code_info_t *src)
{
return jl_is_long(src->ssavaluetypes) ? jl_unbox_long(src->ssavaluetypes) : jl_array_len(src->ssavaluetypes);
}
SECT_INTERP static jl_value_t *eval_value(jl_value_t *e, interpreter_state *s)
{
jl_code_info_t *src = s->src;
if (jl_is_ssavalue(e)) {
ssize_t id = ((jl_ssavalue_t*)e)->id;
if (src == NULL || id >= jl_source_nssavalues(src) || id < 0 || s->locals == NULL)
jl_error("access to invalid SSAValue");
else
return s->locals[jl_source_nslots(src) + id];
}
if (jl_is_slot(e)) {
ssize_t n = jl_slot_number(e);
if (src == NULL || n > jl_source_nslots(src) || n < 1 || s->locals == NULL)
jl_error("access to invalid slot number");
jl_value_t *v = s->locals[n - 1];
if (v == NULL)
jl_undefined_var_error((jl_sym_t*)jl_array_ptr_ref(src->slotnames, n - 1));
return v;
}
if (jl_is_quotenode(e)) {
return jl_quotenode_value(e);
}
if (jl_is_globalref(e)) {
return jl_eval_global_var(jl_globalref_mod(e), jl_globalref_name(e));
}
if (jl_is_symbol(e)) { // bare symbols appear in toplevel exprs not wrapped in `thunk`
return jl_eval_global_var(s->module, (jl_sym_t*)e);
}
if (!jl_is_expr(e))
return e;
jl_expr_t *ex = (jl_expr_t*)e;
jl_value_t **args = (jl_value_t**)jl_array_data(ex->args);
size_t nargs = jl_array_len(ex->args);
jl_sym_t *head = ex->head;
if (head == call_sym) {
return do_call(args, nargs, s);
}
else if (head == invoke_sym) {
return do_invoke(args, nargs, s);
}
else if (head == isdefined_sym) {
jl_value_t *sym = args[0];
int defined = 0;
if (jl_is_slot(sym)) {
ssize_t n = jl_slot_number(sym);
if (src == NULL || n > jl_source_nslots(src) || n < 1 || s->locals == NULL)
jl_error("access to invalid slot number");
defined = s->locals[n - 1] != NULL;
}
else if (jl_is_globalref(sym)) {
defined = jl_boundp(jl_globalref_mod(sym), jl_globalref_name(sym));
}
else if (jl_is_symbol(sym)) {
defined = jl_boundp(s->module, (jl_sym_t*)sym);
}
else if (jl_is_expr(sym) && ((jl_expr_t*)sym)->head == static_parameter_sym) {
ssize_t n = jl_unbox_long(jl_exprarg(sym, 0));
assert(n > 0);
if (s->sparam_vals && n <= jl_svec_len(s->sparam_vals)) {
jl_value_t *sp = jl_svecref(s->sparam_vals, n - 1);
defined = !jl_is_typevar(sp);
}
else {
// static parameter val unknown needs to be an error for ccall
jl_error("could not determine static parameter value");
}
}
else {
assert(0 && "malformed isdefined expression");
}
return defined ? jl_true : jl_false;
}
else if (head == new_sym) {
jl_value_t *thetype = eval_value(args[0], s);
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_value_t *ft = jl_field_type(thetype, i - 1);
jl_value_t *fldv = eval_value(args[i], s);
if (!jl_isa(fldv, ft))
jl_type_error("new", ft, fldv);
jl_set_nth_field(v, i - 1, fldv);
}
JL_GC_POP();
return v;
}
else if (head == static_parameter_sym) {
ssize_t n = jl_unbox_long(args[0]);
assert(n > 0);
if (s->sparam_vals && n <= jl_svec_len(s->sparam_vals)) {
jl_value_t *sp = jl_svecref(s->sparam_vals, n - 1);
if (jl_is_typevar(sp) && !s->preevaluation)
jl_undefined_var_error(((jl_tvar_t*)sp)->name);
return sp;
}
// static parameter val unknown needs to be an error for ccall
jl_error("could not determine static parameter value");
}
else if (head == copyast_sym) {
return jl_copy_ast(eval_value(args[0], s));
}
else if (head == exc_sym) {
return jl_get_ptls_states()->exception_in_transit;
}
else if (head == boundscheck_sym) {
return jl_true;
}
else if (head == boundscheck_sym || head == inbounds_sym || head == fastmath_sym ||
head == simdloop_sym || head == meta_sym) {
return jl_nothing;
}
else if (head == gc_preserve_begin_sym || head == gc_preserve_end_sym) {
// The interpreter generally keeps values that were assigned in this scope
// rooted. If the interpreter learns to be more agressive here, we may
// want to explicitly root these values.
return jl_nothing;
}
else if (head == method_sym && nargs == 1) {
return eval_methoddef(ex, s);
}
jl_errorf("unsupported or misplaced expression %s", jl_symbol_name(head));
abort();
}
SECT_INTERP static jl_value_t *eval_body(jl_array_t *stmts, interpreter_state *s, int start, int toplevel)
{
jl_handler_t __eh;
s->ip = start;
size_t ns = jl_array_len(stmts);
while (1) {
if (s->ip >= ns)
jl_error("`body` expression must terminate in `return`. Use `block` instead.");
if (toplevel)
jl_get_ptls_states()->world_age = jl_world_counter;
jl_value_t *stmt = jl_array_ptr_ref(stmts, s->ip);
if (jl_is_gotonode(stmt)) {
s->ip = jl_gotonode_label(stmt) - 1;
continue;
}
else if (jl_is_expr(stmt)) {
jl_sym_t *head = ((jl_expr_t*)stmt)->head;
if (head == return_sym) {
return eval_value(jl_exprarg(stmt, 0), s);
}
else if (head == assign_sym) {
jl_value_t *sym = jl_exprarg(stmt, 0);
jl_value_t *rhs = eval_value(jl_exprarg(stmt, 1), s);
if (jl_is_ssavalue(sym)) {
ssize_t genid = ((jl_ssavalue_t*)sym)->id;
if (genid >= jl_source_nssavalues(s->src) || genid < 0)
jl_error("assignment to invalid GenSym location");
s->locals[jl_source_nslots(s->src) + genid] = rhs;
}
else if (jl_is_slot(sym)) {
ssize_t n = jl_slot_number(sym);
assert(n <= jl_source_nslots(s->src) && n > 0);
s->locals[n-1] = rhs;
}
else {
jl_module_t *modu = s->module;
if (jl_is_globalref(sym)) {
modu = jl_globalref_mod(sym);
sym = (jl_value_t*)jl_globalref_name(sym);
}
assert(jl_is_symbol(sym));
JL_GC_PUSH1(&rhs);
jl_binding_t *b = jl_get_binding_wr(modu, (jl_sym_t*)sym, 1);
jl_checked_assignment(b, rhs);
JL_GC_POP();
}
}
else if (head == goto_ifnot_sym) {
jl_value_t *cond = eval_value(jl_exprarg(stmt, 0), s);
if (cond == jl_false) {
s->ip = jl_unbox_long(jl_exprarg(stmt, 1)) - 1;
continue;
}
else if (cond != jl_true) {
jl_type_error_rt("toplevel", "if", (jl_value_t*)jl_bool_type, cond);
}
}
else if (head == enter_sym) {
jl_enter_handler(&__eh);
if (!jl_setjmp(__eh.eh_ctx,1)) {
return eval_body(stmts, s, s->ip + 1, toplevel);
}
else if (s->continue_at) {
s->ip = s->continue_at;
s->continue_at = 0;
continue;
}
else {
#ifdef _OS_WINDOWS_
if (jl_get_ptls_states()->exception_in_transit == jl_stackovf_exception)
_resetstkoflw();
#endif
s->ip = jl_unbox_long(jl_exprarg(stmt, 0)) - 1;
continue;
}
}
else if (head == leave_sym) {
int hand_n_leave = jl_unbox_long(jl_exprarg(stmt,0));
assert(hand_n_leave > 0);
// equivalent to jl_pop_handler(hand_n_leave) :
jl_ptls_t ptls = jl_get_ptls_states();
jl_handler_t *eh = ptls->current_task->eh;
while (--hand_n_leave > 0)
eh = eh->prev;
jl_eh_restore_state(eh);
// pop jmp_bufs from stack
s->continue_at = s->ip + 1;
jl_longjmp(eh->eh_ctx, 1);
}
else if (head == const_sym) {
jl_sym_t *sym = (jl_sym_t*)jl_exprarg(stmt, 0);
jl_module_t *modu = s->module;
if (jl_is_globalref(sym)) {
modu = jl_globalref_mod(sym);
sym = jl_globalref_name(sym);
}
assert(jl_is_symbol(sym));
jl_binding_t *b = jl_get_binding_wr(modu, sym, 1);
jl_declare_constant(b);
}
else if (toplevel) {
if (head == method_sym) {
eval_methoddef((jl_expr_t*)stmt, s);
}
else if (head == abstracttype_sym) {
eval_abstracttype((jl_expr_t*)stmt, s);
}
else if (head == primtype_sym) {
eval_primitivetype((jl_expr_t*)stmt, s);
}
else if (head == structtype_sym) {
eval_structtype((jl_expr_t*)stmt, s);
}
else if (jl_is_toplevel_only_expr(stmt)) {
jl_toplevel_eval(s->module, stmt);
}
else {
eval_value(stmt, s);
}
}
else {
eval_value(stmt, s);
}
}
else if (jl_is_newvarnode(stmt)) {
jl_value_t *var = jl_fieldref(stmt, 0);
assert(jl_is_slot(var));
ssize_t n = jl_slot_number(var);
assert(n <= jl_source_nslots(s->src) && n > 0);
s->locals[n - 1] = NULL;
}
else if (toplevel && jl_is_linenode(stmt)) {
jl_lineno = jl_linenode_line(stmt);
}
else {
eval_value(stmt, s);
}
s->ip++;
}
abort();
}
// preparing method IR for interpreter
jl_code_info_t *jl_code_for_interpreter(jl_method_instance_t *lam)
{
jl_code_info_t *src = (jl_code_info_t*)lam->inferred;
JL_GC_PUSH1(&src);
if (!src || (jl_value_t*)src == jl_nothing) {
if (lam->def.method->source) {
src = (jl_code_info_t*)lam->def.method->source;
}
else {
assert(lam->def.method->generator);
src = jl_code_for_staged(lam);
}
}
if (src && (jl_value_t*)src != jl_nothing) {
src = jl_uncompress_ast(lam->def.method, (jl_array_t*)src);
}
if (!src || !jl_is_code_info(src)) {
jl_error("source missing for method called in interpreter");
}
JL_GC_POP();
return src;
}
// interpreter entry points
struct jl_interpret_call_args {
jl_method_instance_t *lam;
jl_value_t **args;
uint32_t nargs;
};
SECT_INTERP CALLBACK_ABI void *jl_interpret_call_callback(interpreter_state *s, void *vargs)
{
struct jl_interpret_call_args *args =
(struct jl_interpret_call_args *)vargs;
jl_code_info_t *src = jl_code_for_interpreter(args->lam);
args->lam->inferred = (jl_value_t*)src;
jl_gc_wb(args->lam, src);
jl_array_t *stmts = src->code;
assert(jl_typeis(stmts, jl_array_any_type));
jl_value_t **locals;
JL_GC_PUSHARGS(locals, jl_source_nslots(src) + jl_source_nssavalues(src) + 2);
locals[0] = (jl_value_t*)src;
locals[1] = (jl_value_t*)stmts;
s->src = src;
s->module = args->lam->def.method->module;
s->locals = locals + 2;
s->sparam_vals = args->lam->sparam_vals;
s->continue_at = 0;
s->mi = args->lam;
size_t i;
for (i = 0; i < args->lam->def.method->nargs; i++) {
if (args->lam->def.method->isva && i == args->lam->def.method->nargs - 1)
s->locals[i] = jl_f_tuple(NULL, &args->args[i], args->nargs - i);
else
s->locals[i] = args->args[i];
}
jl_value_t *r = eval_body(stmts, s, 0, 0);
JL_GC_POP();
return (void*)r;
}
SECT_INTERP jl_value_t *jl_interpret_call(jl_method_instance_t *lam, jl_value_t **args, uint32_t nargs)
{
if (lam->jlcall_api == JL_API_CONST)
return lam->inferred_const;
struct jl_interpret_call_args callback_args = { lam, args, nargs };
return (jl_value_t*)enter_interpreter_frame(jl_interpret_call_callback, (void *)&callback_args);
}
struct jl_interpret_toplevel_thunk_args {
jl_module_t *m;
jl_code_info_t *src;
};
SECT_INTERP CALLBACK_ABI void *jl_interpret_toplevel_thunk_callback(interpreter_state *s, void *vargs) {
struct jl_interpret_toplevel_thunk_args *args =
(struct jl_interpret_toplevel_thunk_args*)vargs;
jl_array_t *stmts = args->src->code;
assert(jl_typeis(stmts, jl_array_any_type));
jl_value_t **locals;
JL_GC_PUSHARGS(locals, jl_source_nslots(args->src) + jl_source_nssavalues(args->src));
s->src = args->src;
s->locals = locals;
s->module = args->m;
s->sparam_vals = jl_emptysvec;
s->continue_at = 0;
s->mi = NULL;
size_t last_age = jl_get_ptls_states()->world_age;
jl_value_t *r = eval_body(stmts, s, 0, 1);
jl_get_ptls_states()->world_age = last_age;
JL_GC_POP();
return (void*)r;
}
SECT_INTERP jl_value_t *jl_interpret_toplevel_thunk(jl_module_t *m, jl_code_info_t *src)
{
struct jl_interpret_toplevel_thunk_args args = { m, src };
return (jl_value_t *)enter_interpreter_frame(jl_interpret_toplevel_thunk_callback, (void*)&args);
}
// deprecated: do not use this method in new code
// it uses special scoping / evaluation / error rules
// which should instead be handled in lowering
struct interpret_toplevel_expr_in_args {
jl_module_t *m;
jl_value_t *e;
jl_code_info_t *src;
jl_svec_t *sparam_vals;
};
SECT_INTERP CALLBACK_ABI void *jl_interpret_toplevel_expr_in_callback(interpreter_state *s, void *vargs)
{
struct interpret_toplevel_expr_in_args *args =
(struct interpret_toplevel_expr_in_args*)vargs;
jl_ptls_t ptls = jl_get_ptls_states();
jl_value_t *v=NULL;
jl_module_t *last_m = ptls->current_module;
jl_module_t *task_last_m = ptls->current_task->current_module;
s->src = args->src;
s->module = args->m;
s->sparam_vals = args->sparam_vals;
s->preevaluation = (s->sparam_vals != NULL);
s->continue_at = 0;
s->mi = NULL;
JL_TRY {
ptls->current_task->current_module = ptls->current_module = args->m;
v = eval_value(args->e, s);
}
JL_CATCH {
ptls->current_module = last_m;
ptls->current_task->current_module = task_last_m;
jl_rethrow();
}
ptls->current_module = last_m;
ptls->current_task->current_module = task_last_m;
assert(v);
return (void*)v;
}
SECT_INTERP jl_value_t *jl_interpret_toplevel_expr_in(jl_module_t *m, jl_value_t *e, jl_code_info_t *src, jl_svec_t *sparam_vals)
{
struct interpret_toplevel_expr_in_args args = {
m, e, src, sparam_vals
};
return (jl_value_t *)enter_interpreter_frame(jl_interpret_toplevel_expr_in_callback, (void*)&args);
}
#ifdef __cplusplus
}
#endif