// load toplevel expressions, from (file ...)
void jl_load_file_expr(char *fname, jl_value_t *ast)
{
jl_array_t *b = ((jl_expr_t*)ast)->args;
size_t i;
volatile size_t lineno=0;
if (((jl_expr_t*)ast)->head == jl_continue_sym) {
jl_errorf("syntax error: %s", jl_string_data(jl_exprarg(ast,0)));
}
JL_TRY {
jl_register_toplevel_eh();
// handle syntax error
if (((jl_expr_t*)ast)->head == error_sym) {
jl_interpret_toplevel_expr(ast);
}
for(i=0; i < b->length; i++) {
// process toplevel form
jl_value_t *form = jl_cellref(b, i);
if (jl_is_linenode(form)) {
lineno = jl_linenode_line(form);
}
else {
(void)jl_toplevel_eval_flex(form, 0, &lineno);
}
}
}
JL_CATCH {
jl_value_t *fn=NULL, *ln=NULL;
JL_GC_PUSH(&fn, &ln);
fn = jl_pchar_to_string(fname, strlen(fname));
ln = jl_box_long(lineno);
jl_raise(jl_new_struct(jl_loaderror_type, fn, ln,
jl_exception_in_transit));
}
}
// repeatedly call jl_parse_next and eval everything
void jl_parse_eval_all(char *fname)
{
//ios_printf(ios_stderr, "***** loading %s\n", fname);
int lineno=0;
jl_value_t *fn=NULL, *ln=NULL, *form=NULL;
JL_GC_PUSH(&fn, &ln, &form);
JL_TRY {
jl_register_toplevel_eh();
// handle syntax error
while (1) {
form = jl_parse_next(&lineno);
if (form == NULL)
break;
if (jl_is_expr(form)) {
if (((jl_expr_t*)form)->head == jl_continue_sym) {
jl_errorf("syntax error: %s", jl_string_data(jl_exprarg(form,0)));
}
if (((jl_expr_t*)form)->head == error_sym) {
jl_interpret_toplevel_expr(form);
}
}
(void)jl_toplevel_eval_flex(form, 1, &lineno);
}
}
JL_CATCH {
jl_stop_parsing();
fn = jl_pchar_to_string(fname, strlen(fname));
ln = jl_box_long(lineno);
jl_raise(jl_new_struct(jl_loaderror_type, fn, ln,
jl_exception_in_transit));
}
jl_stop_parsing();
JL_GC_POP();
}
value_t fl_invoke_julia_macro(value_t *args, uint32_t nargs)
{
if (nargs < 1)
argcount("invoke-julia-macro", nargs, 1);
jl_function_t *f = NULL;
jl_value_t **margs = alloca(nargs * sizeof(jl_value_t*));
int i;
for(i=0; i < nargs; i++) margs[i] = NULL;
JL_GC_PUSHARGS(margs, nargs);
for(i=1; i < nargs; i++) margs[i] = scm_to_julia(args[i]);
jl_value_t *result;
JL_TRY {
jl_register_toplevel_eh();
margs[0] = scm_to_julia(args[0]);
f = (jl_function_t*)jl_toplevel_eval(margs[0]);
result = jl_apply(f, &margs[1], nargs-1);
}
JL_CATCH {
JL_GC_POP();
value_t opaque = cvalue(jvtype, sizeof(void*));
*(jl_value_t**)cv_data((cvalue_t*)ptr(opaque)) = jl_exception_in_transit;
return fl_list2(symbol("error"), opaque);
}
// protect result from GC, otherwise it could be freed during future
// macro expansions, since it will be referenced only from scheme and
// not julia.
// all calls to invoke-julia-macro happen under a single call to jl_expand,
// so the preserved value stack is popped there.
jl_gc_preserve(result);
value_t scm = julia_to_scm(result);
fl_gc_handle(&scm);
value_t scmresult;
jl_module_t *defmod = f->linfo->module;
if (defmod == jl_current_module) {
scmresult = fl_cons(scm, FL_F);
}
else {
value_t opaque = cvalue(jvtype, sizeof(void*));
*(jl_value_t**)cv_data((cvalue_t*)ptr(opaque)) = (jl_value_t*)defmod;
scmresult = fl_cons(scm, opaque);
}
fl_free_gc_handles(1);
JL_GC_POP();
return scmresult;
}
// load toplevel expressions, from (file ...)
void jl_load_file_expr(char *fname, jl_value_t *ast)
{
jl_array_t *b = ((jl_expr_t*)ast)->args;
size_t i;
volatile size_t lineno=0;
if (((jl_expr_t*)ast)->head == jl_continue_sym) {
jl_errorf("syntax error: %s", jl_string_data(jl_exprarg(ast,0)));
}
char oldcwd[512];
char newcwd[512];
get_cwd(oldcwd, sizeof(oldcwd));
char *sep = strrchr(fname, PATHSEP);
if (sep) {
size_t n = (sep - fname)+1;
if (n > sizeof(newcwd)-1) n = sizeof(newcwd)-1;
strncpy(newcwd, fname, n);
newcwd[n] = '\0';
set_cwd(newcwd);
}
JL_TRY {
jl_register_toplevel_eh();
// handle syntax error
if (((jl_expr_t*)ast)->head == error_sym) {
jl_interpret_toplevel_expr(ast);
}
for(i=0; i < b->length; i++) {
// process toplevel form
jl_value_t *form = jl_cellref(b, i);
if (jl_is_linenode(form)) {
lineno = jl_linenode_line(form);
}
else {
(void)jl_toplevel_eval_flex(form, 0, &lineno);
}
}
}
JL_CATCH {
if (sep) set_cwd(oldcwd);
jl_value_t *fn=NULL, *ln=NULL;
JL_GC_PUSH(&fn, &ln);
fn = jl_pchar_to_string(fname, strlen(fname));
ln = jl_box_long(lineno);
jl_raise(jl_new_struct(jl_loaderror_type, fn, ln,
jl_exception_in_transit));
}
if (sep) set_cwd(oldcwd);
}
static int exec_program(void)
{
int err = 0;
again: ;
JL_TRY {
jl_register_toplevel_eh();
if (err) {
//jl_lisp_prompt();
//return 1;
jl_value_t *errs = jl_stderr_obj();
jl_value_t *e = jl_exception_in_transit;
if (errs != NULL) {
jl_show(jl_stderr_obj(), e);
}
else {
while (1) {
if (jl_typeof(e) == (jl_type_t*)jl_loaderror_type) {
e = jl_fieldref(e, 2);
// TODO: show file and line
}
else if (jl_typeof(e) == (jl_type_t*)jl_backtrace_type) {
e = jl_fieldref(e, 0);
}
else break;
}
if (jl_typeof(e) == (jl_type_t*)jl_errorexception_type) {
ios_printf(ios_stderr, "error during bootstrap: %s\n",
jl_string_data(jl_fieldref(e,0)));
}
else {
ios_printf(ios_stderr, "error during bootstrap\n");
}
}
ios_printf(ios_stderr, "\n");
JL_EH_POP();
return 1;
}
jl_load(program);
}
JL_CATCH {
err = 1;
goto again;
}
return 0;
}
DLLEXPORT void jl_eval_user_input(jl_value_t *ast, int show_value)
{
if (jl_have_event_loop) {
// with multi.j loaded the command line input callback can return
// before the command finishes running, so we have to
// disable rl to prevent the prompt from reappearing too soon.
repl_callback_disable();
}
JL_GC_PUSH(&ast);
assert(ast != NULL);
int iserr = 0;
again:
;
JL_TRY {
jl_register_toplevel_eh();
if (have_color) {
ios_printf(ios_stdout, jl_color_normal);
}
if (iserr) {
jl_show(jl_exception_in_transit);
ios_printf(ios_stdout, "\n");
JL_EH_POP();
break; // leave JL_TRY
}
jl_value_t *value = jl_toplevel_eval(ast);
jl_set_global(jl_system_module, jl_symbol("ans"), value);
if (value != (jl_value_t*)jl_nothing && show_value) {
if (have_color) {
ios_printf(ios_stdout, jl_answer_color());
}
repl_show_value(value);
ios_printf(ios_stdout, "\n");
}
}
JL_CATCH {
iserr = 1;
goto again;
}
ios_printf(ios_stdout, "\n");
JL_GC_POP();
repl_callback_enable();
}
static int exec_program(void)
{
int err = 0;
again: ;
JL_TRY {
jl_register_toplevel_eh();
if (err) {
jl_show(jl_exception_in_transit);
ios_printf(ios_stdout, "\n");
JL_EH_POP();
return 1;
}
jl_load(program);
}
JL_CATCH {
err = 1;
goto again;
}
return 0;
}