JL_DLLEXPORT jl_value_t *jl_backtrace_from_here(int returnsp)
{
jl_svec_t *tp = NULL;
jl_array_t *ip = NULL;
jl_array_t *sp = NULL;
JL_GC_PUSH3(&tp, &ip, &sp);
if (array_ptr_void_type == NULL) {
tp = jl_svec2(jl_voidpointer_type, jl_box_long(1));
array_ptr_void_type = jl_apply_type((jl_value_t*)jl_array_type, tp);
}
ip = jl_alloc_array_1d(array_ptr_void_type, 0);
sp = returnsp ? jl_alloc_array_1d(array_ptr_void_type, 0) : NULL;
const size_t maxincr = 1000;
bt_context_t context;
bt_cursor_t cursor;
memset(&context, 0, sizeof(context));
jl_unw_get(&context);
if (jl_unw_init(&cursor, &context)) {
size_t n = 0, offset = 0;
do {
jl_array_grow_end(ip, maxincr);
if (returnsp) jl_array_grow_end(sp, maxincr);
n = jl_unw_stepn(&cursor, (uintptr_t*)jl_array_data(ip) + offset,
returnsp ? (uintptr_t*)jl_array_data(sp) + offset : NULL, maxincr);
offset += maxincr;
} while (n > maxincr);
jl_array_del_end(ip, maxincr - n);
if (returnsp) jl_array_del_end(sp, maxincr - n);
}
jl_value_t *bt = returnsp ? (jl_value_t*)jl_svec2(ip, sp) : (jl_value_t*)ip;
JL_GC_POP();
return bt;
}
jl_value_t *jl_readuntil(ios_t *s, uint8_t delim)
{
jl_array_t *a;
// manually inlined common case
char *pd = (char*)memchr(s->buf+s->bpos, delim, s->size - s->bpos);
if (pd) {
size_t n = pd-(s->buf+s->bpos)+1;
a = jl_alloc_array_1d(jl_array_uint8_type, n);
memcpy(jl_array_data(a), s->buf+s->bpos, n);
s->bpos += n;
}
else {
a = jl_alloc_array_1d(jl_array_uint8_type, 80);
ios_t dest;
ios_mem(&dest, 0);
ios_setbuf(&dest, a->data, 80, 0);
size_t n = ios_copyuntil(&dest, s, delim);
if (dest.buf != a->data) {
a = jl_takebuf_array(&dest);
}
else {
#ifdef STORE_ARRAY_LEN
a->length = n;
#endif
a->nrows = n;
((char*)a->data)[n] = '\0';
}
}
return (jl_value_t*)a;
}
jl_value_t *jl_readuntil(ios_t *s, uint8_t delim)
{
jl_array_t *a;
// manually inlined common case
char *pd = (char*)memchr(s->buf+s->bpos, delim, s->size - s->bpos);
if (pd) {
size_t n = pd-(s->buf+s->bpos)+1;
a = jl_alloc_array_1d(jl_array_uint8_type, n);
memcpy(jl_array_data(a), s->buf+s->bpos, n);
s->bpos += n;
}
else {
a = jl_alloc_array_1d(jl_array_uint8_type, 80);
ios_t dest;
jl_ios_mem(&dest, 0);
ios_setbuf(&dest, a->data, 80, 0);
size_t n = ios_copyuntil(&dest, s, delim);
if (dest.buf != a->data) {
a = jl_takebuf_array(&dest);
}
else {
a->length = n;
a->nrows = n;
((char*)a->data)[n] = '\0';
}
}
JL_GC_PUSH(&a);
jl_struct_type_t* string_type = u8_isvalid(a->data, a->length) == 1 ? // ASCII
jl_ascii_string_type : jl_utf8_string_type;
jl_value_t *str = alloc_2w();
str->type = (jl_type_t*)string_type;
jl_fieldref(str,0) = (jl_value_t*)a;
JL_GC_POP();
return str;
}
JL_DLLEXPORT jl_value_t *jl_readuntil(ios_t *s, uint8_t delim, uint8_t str, uint8_t chomp)
{
jl_array_t *a;
// manually inlined common case
char *pd = (char*)memchr(s->buf + s->bpos, delim, (size_t)(s->size - s->bpos));
if (pd) {
size_t n = pd - (s->buf + s->bpos) + 1;
if (str) {
size_t nchomp = 0;
if (chomp) {
nchomp = ios_nchomp(s, n);
}
jl_value_t *str = jl_pchar_to_string(s->buf + s->bpos, n - nchomp);
s->bpos += n;
return str;
}
a = jl_alloc_array_1d(jl_array_uint8_type, n);
memcpy(jl_array_data(a), s->buf + s->bpos, n);
s->bpos += n;
}
else {
a = jl_alloc_array_1d(jl_array_uint8_type, 80);
ios_t dest;
ios_mem(&dest, 0);
ios_setbuf(&dest, (char*)a->data, 80, 0);
size_t n = ios_copyuntil(&dest, s, delim);
if (chomp && n > 0 && dest.buf[n - 1] == '\n') {
n--;
if (n > 0 && dest.buf[n - 1] == '\r') {
n--;
}
int truncret = ios_trunc(&dest, n); // it should always be possible to truncate dest
assert(truncret == 0);
(void)truncret; // ensure the variable is used to avoid warnings
}
if (dest.buf != a->data) {
a = jl_take_buffer(&dest);
}
else {
#ifdef STORE_ARRAY_LEN
a->length = n;
#endif
a->nrows = n;
((char*)a->data)[n] = '\0';
}
if (str) {
JL_GC_PUSH1(&a);
jl_value_t *st = jl_array_to_string(a);
JL_GC_POP();
return st;
}
}
return (jl_value_t*)a;
}
static jl_value_t *R_Julia_MD_NA_Factor(SEXP Var, const char *VarName)
{
SEXP levels = getAttrib(Var, R_LevelsSymbol);
if (levels == R_NilValue)
return jl_nothing;
//create string array for levels in julia
jl_array_t *ret1 = jl_alloc_array_1d(jl_apply_array_type(jl_ascii_string_type, 1), LENGTH(levels));
jl_value_t **retData1 = jl_array_data(ret1);
for (size_t i = 0; i < jl_array_len(ret1); i++)
if (!IS_ASCII(Var))
retData1[i] = jl_cstr_to_string(translateChar0(STRING_ELT(levels, i)));
else
retData1[i] = jl_cstr_to_string(CHAR(STRING_ELT(levels, i)));
if ((LENGTH(Var)) != 0)
{
switch (TYPEOF(Var))
{
case INTSXP:
{
jl_array_t *ret = jl_alloc_array_1d(jl_apply_array_type(jl_uint32_type, 1), LENGTH(Var));
JL_GC_PUSH(&ret, &ret1);
int *retData = (int *)jl_array_data(ret);
for (size_t i = 0; i < jl_array_len(ret); i++)
{
if (INTEGER(Var)[i] == NA_INTEGER)
{
//NA in poolarray is 0
retData[i] = 0;
}
else
{
retData[i] = INTEGER(Var)[i];
}
}
JL_GC_POP();
return TransArrayToPoolDataArray(ret, ret1, LENGTH(Var), VarName);
break;
}
default:
return (jl_value_t *) jl_nothing;
break;
}//case end
return (jl_value_t *) jl_nothing;
}//if length !=0
return (jl_value_t *) jl_nothing;
}
// hack to expose ios_stdout to julia. we could create a new iostream pointing
// to stdout, but then there would be two buffers for one descriptor, and
// ios_stdout is used before julia IOStream is available, creating a potential
// mess.
DLLEXPORT jl_value_t *jl_stdout_stream(void)
{
jl_array_t *a = jl_alloc_array_1d(jl_array_uint8_type, sizeof(ios_t));
a->data = (void*)ios_stdout;
jl_array_data_owner(a) = (jl_value_t*)a;
return (jl_value_t*)a;
}
DLLEXPORT jl_value_t *jl_module_usings(jl_module_t *m)
{
jl_array_t *a = jl_alloc_array_1d(jl_array_any_type, 0);
JL_GC_PUSH1(&a);
for(int i=(int)m->usings.len-1; i >= 0; --i) {
jl_array_grow_end(a, 1);
jl_module_t *imp = (jl_module_t*)m->usings.items[i];
jl_cellset(a,jl_array_dim0(a)-1, (jl_value_t*)imp);
}
JL_GC_POP();
return (jl_value_t*)a;
}
// copy a :lambda Expr into its LambdaInfo representation
static void jl_lambda_info_set_ast(jl_lambda_info_t *li, jl_expr_t *ast)
{
assert(jl_is_expr(ast));
jl_expr_t *bodyex = (jl_expr_t*)jl_exprarg(ast, 2);
assert(jl_is_expr(bodyex));
jl_array_t *body = bodyex->args;
li->code = (jl_value_t*)body; jl_gc_wb(li, li->code);
if (has_meta(body, pure_sym))
li->pure = 1;
jl_array_t *vinfo = (jl_array_t*)jl_exprarg(ast, 1);
jl_array_t *vis = (jl_array_t*)jl_array_ptr_ref(vinfo, 0);
size_t nslots = jl_array_len(vis);
jl_value_t *ssavalue_types = jl_array_ptr_ref(vinfo, 2);
assert(jl_is_long(ssavalue_types));
size_t nssavalue = jl_unbox_long(ssavalue_types);
li->slotnames = jl_alloc_vec_any(nslots);
jl_gc_wb(li, li->slotnames);
li->slottypes = jl_nothing;
li->slotflags = jl_alloc_array_1d(jl_array_uint8_type, nslots);
jl_gc_wb(li, li->slotflags);
li->ssavaluetypes = jl_box_long(nssavalue);
jl_gc_wb(li, li->ssavaluetypes);
int i;
for(i=0; i < nslots; i++) {
jl_value_t *vi = jl_array_ptr_ref(vis, i);
jl_sym_t *name = (jl_sym_t*)jl_array_ptr_ref(vi, 0);
assert(jl_is_symbol(name));
char *str = jl_symbol_name(name);
if (i > 0 && name != unused_sym) {
if (str[0] == '#') {
// convention for renamed variables: #...#original_name
char *nxt = strchr(str + 1, '#');
if (nxt)
name = jl_symbol(nxt+1);
else if (str[1] == 's') // compiler-generated temporaries, #sXXX
name = compiler_temp_sym;
}
}
jl_array_ptr_set(li->slotnames, i, name);
jl_array_uint8_set(li->slotflags, i, jl_unbox_long(jl_array_ptr_ref(vi, 2)));
}
jl_array_t *sparams = (jl_array_t*)jl_array_ptr_ref(vinfo, 3);
assert(jl_is_array(sparams));
li->sparam_syms = jl_alloc_svec_uninit(jl_array_len(sparams));
jl_gc_wb(li, li->sparam_syms);
for(i=0; i < jl_array_len(sparams); i++) {
jl_svecset(li->sparam_syms, i, jl_array_ptr_ref(sparams, i));
}
jl_array_t *args = (jl_array_t*)jl_exprarg(ast, 0);
size_t narg = jl_array_len(args);
li->nargs = narg;
li->isva = narg > 0 && jl_is_rest_arg(jl_array_ptr_ref(args, narg - 1));
}
ValueIfNotPtrArray<T> boxArray(const T* data, size_t size)
{
log("boxArray(const T*) - jl_alloc_array_1d and memcpy");
jl_datatype_t* dataType = TypeTraits<UnqualifiedType<T>>::dataType();
JULIACPP_ASSERT(dataType != nullptr, "Data type not supported.");
jl_value_t* arrayType = jl_apply_array_type(dataType, 1);
jl_array_t* array = jl_alloc_array_1d(arrayType, size);
std::memcpy(jl_array_data(array), data, sizeof(T) * size);
return (jl_value_t*)array;
}
JL_DLLEXPORT jl_value_t *jl_get_backtrace(void)
{
jl_svec_t *tp = NULL;
jl_array_t *bt = NULL;
JL_GC_PUSH2(&tp, &bt);
if (array_ptr_void_type == NULL) {
tp = jl_svec2(jl_voidpointer_type, jl_box_long(1));
array_ptr_void_type = jl_apply_type((jl_value_t*)jl_array_type, tp);
}
bt = jl_alloc_array_1d(array_ptr_void_type, jl_bt_size);
memcpy(bt->data, jl_bt_data, jl_bt_size * sizeof(void*));
JL_GC_POP();
return (jl_value_t*)bt;
}
CXX_WRAP_EXPORT jl_array_t* gc_protected()
{
static jl_array_t* m_arr = nullptr;
if (m_arr == nullptr)
{
#if JULIA_VERSION_MAJOR == 0 && JULIA_VERSION_MINOR > 4
jl_value_t* array_type = jl_apply_array_type(jl_any_type, 1);
m_arr = jl_alloc_array_1d(array_type, 0);
#else
m_arr = jl_alloc_cell_1d(0);
#endif
jl_set_const(g_cxx_wrap_module, jl_symbol("_gc_protected"), (jl_value_t*)m_arr);
}
return m_arr;
}
ValueIfPtrArray<T> boxArray(const T* data, size_t size)
{
log("boxArray(const T*) - jl_alloc_array_1d and unbox per element");
jl_datatype_t* dataType = TypeTraits<UnqualifiedType<T>>::dataType();
JULIACPP_ASSERT(dataType != nullptr, "Data type not supported.");
jl_value_t* arrayType = jl_apply_array_type(dataType, 1);
jl_array_t* array = jl_alloc_array_1d(arrayType, size);
jl_value_t** arrayData = (jl_value_t**)jl_array_data(array);
for (size_t i = 0; i < size; i++)
{
arrayData[i] = box(data[i]);
}
return (jl_value_t*)array;
}
DLLEXPORT jl_value_t *jl_module_names(jl_module_t *m, int all, int imported)
{
jl_array_t *a = jl_alloc_array_1d(jl_array_symbol_type, 0);
JL_GC_PUSH1(&a);
size_t i;
void **table = m->bindings.table;
for(i=1; i < m->bindings.size; i+=2) {
if (table[i] != HT_NOTFOUND) {
jl_binding_t *b = (jl_binding_t*)table[i];
if (b->exportp || ((imported || b->owner == m) && (all || m == jl_main_module))) {
jl_array_grow_end(a, 1);
//XXX: change to jl_arrayset if array storage allocation for Array{Symbols,1} changes:
jl_cellset(a, jl_array_dim0(a)-1, (jl_value_t*)b->name);
}
}
}
JL_GC_POP();
return (jl_value_t*)a;
}
static jl_array_t *jl_alloc_int_1d(size_t np, size_t len)
{
jl_value_t *ty;
if (np < 0xFF) {
ty = jl_array_uint8_type;
}
else if (np < 0xFFFF) {
static jl_value_t *int16 = NULL;
if (int16 == NULL)
int16 = jl_apply_array_type(jl_uint16_type, 1);
ty = int16;
}
else {
assert(np < 0x7FFFFFFF);
static jl_value_t *int32 = NULL;
if (int32 == NULL)
int32 = jl_apply_array_type(jl_uint32_type, 1);
ty = int32;
}
jl_array_t *a = jl_alloc_array_1d(ty, len);
memset(a->data, 0, len * a->elsize);
return a;
}
JL_DLLEXPORT jl_array_t *jl_alloc_vec_any(size_t n)
{
return jl_alloc_array_1d(jl_array_any_type, n);
}
JL_DLLEXPORT jl_array_t *jl_pchar_to_array(const char *str, size_t len)
{
jl_array_t *a = jl_alloc_array_1d(jl_array_uint8_type, len);
memcpy(a->data, str, len);
return a;
}
jl_array_t *jl_alloc_cell_1d(size_t n)
{
return jl_alloc_array_1d(jl_array_any_type, n);
}
// copy a :lambda Expr into its LambdaInfo representation
static void jl_lambda_info_set_ast(jl_lambda_info_t *li, jl_expr_t *ast)
{
assert(jl_is_expr(ast));
jl_expr_t *bodyex = (jl_expr_t*)jl_exprarg(ast, 2);
assert(jl_is_expr(bodyex));
jl_array_t *body = bodyex->args;
li->code = (jl_value_t*)body; jl_gc_wb(li, li->code);
size_t j, n = jl_array_len(body);
jl_value_t **bd = (jl_value_t**)jl_array_data((jl_array_t*)li->code);
for(j=0; j < n; j++) {
jl_value_t *st = bd[j];
if (jl_is_expr(st) && ((jl_expr_t*)st)->head == meta_sym) {
size_t k, ins = 0, na = jl_expr_nargs(st);
jl_array_t *meta = ((jl_expr_t*)st)->args;
for(k=0; k < na; k++) {
jl_value_t *ma = jl_array_ptr_ref(meta, k);
if (ma == (jl_value_t*)pure_sym)
li->pure = 1;
else if (ma == (jl_value_t*)inline_sym)
li->inlineable = 1;
else
jl_array_ptr_set(meta, ins++, ma);
}
if (ins == 0)
bd[j] = jl_nothing;
else
jl_array_del_end(meta, na-ins);
}
}
jl_array_t *vinfo = (jl_array_t*)jl_exprarg(ast, 1);
jl_array_t *vis = (jl_array_t*)jl_array_ptr_ref(vinfo, 0);
size_t nslots = jl_array_len(vis);
jl_value_t *ssavalue_types = jl_array_ptr_ref(vinfo, 2);
assert(jl_is_long(ssavalue_types));
size_t nssavalue = jl_unbox_long(ssavalue_types);
li->slotnames = jl_alloc_vec_any(nslots);
jl_gc_wb(li, li->slotnames);
li->slottypes = jl_nothing;
li->slotflags = jl_alloc_array_1d(jl_array_uint8_type, nslots);
jl_gc_wb(li, li->slotflags);
li->ssavaluetypes = jl_box_long(nssavalue);
jl_gc_wb(li, li->ssavaluetypes);
int i;
for(i=0; i < nslots; i++) {
jl_value_t *vi = jl_array_ptr_ref(vis, i);
jl_sym_t *name = (jl_sym_t*)jl_array_ptr_ref(vi, 0);
assert(jl_is_symbol(name));
char *str = jl_symbol_name(name);
if (i > 0 && name != unused_sym) {
if (str[0] == '#') {
// convention for renamed variables: #...#original_name
char *nxt = strchr(str + 1, '#');
if (nxt)
name = jl_symbol(nxt+1);
else if (str[1] == 's') // compiler-generated temporaries, #sXXX
name = compiler_temp_sym;
}
}
jl_array_ptr_set(li->slotnames, i, name);
jl_array_uint8_set(li->slotflags, i, jl_unbox_long(jl_array_ptr_ref(vi, 2)));
}
jl_array_t *sparams = (jl_array_t*)jl_array_ptr_ref(vinfo, 3);
assert(jl_is_array(sparams));
li->sparam_syms = jl_alloc_svec_uninit(jl_array_len(sparams));
jl_gc_wb(li, li->sparam_syms);
for(i=0; i < jl_array_len(sparams); i++) {
jl_svecset(li->sparam_syms, i, jl_array_ptr_ref(sparams, i));
}
jl_array_t *args = (jl_array_t*)jl_exprarg(ast, 0);
size_t narg = jl_array_len(args);
li->nargs = narg;
li->isva = narg > 0 && jl_is_rest_arg(jl_array_ptr_ref(args, narg - 1));
}
jl_array_t *jl_memcpy(jl_array_t *a)
{
jl_array_t *b = jl_alloc_array_1d(jl_array_uint8_type, a->length);
memcpy(b->data, a->data, a->length);
return b;
}
Array(jl_datatype_t* applied_type, const size_t n = 0)
{
jl_value_t* array_type = jl_apply_array_type(applied_type, 1);
m_array = jl_alloc_array_1d(array_type, n);
}
Array(const size_t n = 0)
{
jl_value_t* array_type = jl_apply_array_type(static_type_mapping<ValueT>::julia_type(), 1);
m_array = jl_alloc_array_1d(array_type, n);
}
int main()
{
jl_init(NULL);
{
// Simple running Julia code
jl_eval_string("println(sqrt(2.0))");
}
{
// Accessing the return value
jl_value_t *ret = jl_eval_string("sqrt(2.0)");
if (jl_is_float64(ret)) {
double retDouble = jl_unbox_float64(ret);
printf("sqrt(2.0) in C: %e\n", retDouble);
}
}
{
// Same as above but with function handle (more flexible)
jl_function_t *func = jl_get_function(jl_base_module, "sqrt");
jl_value_t* argument = jl_box_float64(2.0);
jl_value_t* ret = jl_call1(func, argument);
if (jl_is_float64(ret)) {
double retDouble = jl_unbox_float64(ret);
printf("sqrt(2.0) in C: %e\n", retDouble);
}
}
{
// 1D arrays
jl_value_t* array_type = jl_apply_array_type( jl_float64_type, 1 );
jl_array_t* x = jl_alloc_array_1d(array_type , 10);
JL_GC_PUSH1(&x);
double* xData = jl_array_data(x);
size_t i;
for(i=0; i<jl_array_len(x); i++)
xData[i] = i;
jl_function_t *func = jl_get_function(jl_base_module, "reverse!");
jl_call1(func, (jl_value_t*) x);
printf("x = [");
for(i=0; i<jl_array_len(x); i++)
printf("%e ", xData[i]);
printf("]\n");
JL_GC_POP();
}
{
// define julia function and call it
jl_eval_string("my_func(x) = 2*x");
jl_function_t *func = jl_get_function(jl_current_module, "my_func");
jl_value_t* arg = jl_box_float64(5.0);
double ret = jl_unbox_float64(jl_call1(func, arg));
printf("my_func(5.0) = %f\n", ret);
}
{
// call c function
jl_eval_string("println( ccall( :my_c_sqrt, Float64, (Float64,), 2.0 ) )");
}
{
// check for exceptions
jl_eval_string("this_function_does_not_exist()");
if (jl_exception_occurred()) {
jl_show(jl_stderr_obj(), jl_exception_occurred());
jl_printf(jl_stderr_stream(), "\n");
}
}
jl_atexit_hook();
return 0;
}
