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-rw-r--r--eval_jump.ci305
1 files changed, 0 insertions, 305 deletions
diff --git a/eval_jump.ci b/eval_jump.ci
deleted file mode 100644
index 948ac635b..000000000
--- a/eval_jump.ci
+++ /dev/null
@@ -1,305 +0,0 @@
-/* -*-c-*- */
-/*
- * from eval.c
- */
-
-#include "eval_intern.h"
-
-NORETURN(static VALUE rb_f_throw _((int, VALUE *)));
-
-/*
- * call-seq:
- * throw(symbol [, obj])
- *
- * Transfers control to the end of the active +catch+ block
- * waiting for _symbol_. Raises +NameError+ if there
- * is no +catch+ block for the symbol. The optional second
- * parameter supplies a return value for the +catch+ block,
- * which otherwise defaults to +nil+. For examples, see
- * <code>Kernel::catch</code>.
- */
-
-static VALUE
-rb_f_throw(int argc, VALUE *argv)
-{
- VALUE tag, value;
- rb_thread_t *th = GET_THREAD();
- struct rb_vm_tag *tt = th->tag;
-
- rb_scan_args(argc, argv, "11", &tag, &value);
- while (tt) {
- if (tt->tag == tag) {
- tt->retval = value;
- break;
- }
- tt = tt->prev;
- }
- if (!tt) {
- VALUE desc = rb_inspect(tag);
- rb_raise(rb_eArgError, "uncaught throw %s", RSTRING_PTR(desc));
- }
- rb_trap_restore_mask();
- th->errinfo = NEW_THROW_OBJECT(tag, 0, TAG_THROW);
-
- JUMP_TAG(TAG_THROW);
-#ifndef __GNUC__
- return Qnil; /* not reached */
-#endif
-}
-
-void
-rb_throw(const char *tag, VALUE val)
-{
- VALUE argv[2];
-
- argv[0] = ID2SYM(rb_intern(tag));
- argv[1] = val;
- rb_f_throw(2, argv);
-}
-
-void
-rb_throw_obj(VALUE tag, VALUE val)
-{
- VALUE argv[2];
-
- argv[0] = tag;
- argv[1] = val;
- rb_f_throw(2, argv);
-}
-
-/*
- * call-seq:
- * catch(symbol) {| | block } > obj
- *
- * +catch+ executes its block. If a +throw+ is
- * executed, Ruby searches up its stack for a +catch+ block
- * with a tag corresponding to the +throw+'s
- * _symbol_. If found, that block is terminated, and
- * +catch+ returns the value given to +throw+. If
- * +throw+ is not called, the block terminates normally, and
- * the value of +catch+ is the value of the last expression
- * evaluated. +catch+ expressions may be nested, and the
- * +throw+ call need not be in lexical scope.
- *
- * def routine(n)
- * puts n
- * throw :done if n <= 0
- * routine(n-1)
- * end
- *
- *
- * catch(:done) { routine(3) }
- *
- * <em>produces:</em>
- *
- * 3
- * 2
- * 1
- * 0
- */
-
-static VALUE
-rb_f_catch(int argc, VALUE *argv)
-{
- VALUE tag;
- int state;
- VALUE val = Qnil; /* OK */
- rb_thread_t *th = GET_THREAD();
-
- rb_scan_args(argc, argv, "01", &tag);
- if (argc == 0) {
- tag = rb_obj_alloc(rb_cObject);
- }
- PUSH_TAG();
-
- th->tag->tag = tag;
-
- if ((state = EXEC_TAG()) == 0) {
- val = rb_yield_0(1, &tag);
- }
- else if (state == TAG_THROW && RNODE(th->errinfo)->u1.value == tag) {
- val = th->tag->retval;
- th->errinfo = Qnil;
- state = 0;
- }
- POP_TAG();
- if (state)
- JUMP_TAG(state);
-
- return val;
-}
-
-static VALUE
-catch_null_i(VALUE dmy)
-{
- return rb_funcall(Qnil, rb_intern("catch"), 0, 0);
-}
-
-static VALUE
-catch_i(VALUE tag)
-{
- return rb_funcall(Qnil, rb_intern("catch"), 1, tag);
-}
-
-VALUE
-rb_catch(const char *tag, VALUE (*func)(), VALUE data)
-{
- if (!tag) {
- return rb_iterate(catch_null_i, 0, func, data);
- }
- return rb_iterate(catch_i, ID2SYM(rb_intern(tag)), func, data);
-}
-
-VALUE
-rb_catch_obj(VALUE tag, VALUE (*func)(), VALUE data)
-{
- return rb_iterate((VALUE (*)_((VALUE)))catch_i, tag, func, data);
-}
-
-
-/* exit */
-
-void
-rb_call_end_proc(VALUE data)
-{
- rb_proc_call(data, rb_ary_new());
-}
-
-/*
- * call-seq:
- * at_exit { block } -> proc
- *
- * Converts _block_ to a +Proc+ object (and therefore
- * binds it at the point of call) and registers it for execution when
- * the program exits. If multiple handlers are registered, they are
- * executed in reverse order of registration.
- *
- * def do_at_exit(str1)
- * at_exit { print str1 }
- * end
- * at_exit { puts "cruel world" }
- * do_at_exit("goodbye ")
- * exit
- *
- * <em>produces:</em>
- *
- * goodbye cruel world
- */
-
-static VALUE
-rb_f_at_exit(void)
-{
- VALUE proc;
-
- if (!rb_block_given_p()) {
- rb_raise(rb_eArgError, "called without a block");
- }
- proc = rb_block_proc();
- rb_set_end_proc(rb_call_end_proc, proc);
- return proc;
-}
-
-struct end_proc_data {
- void (*func) ();
- VALUE data;
- int safe;
- struct end_proc_data *next;
-};
-
-static struct end_proc_data *end_procs, *ephemeral_end_procs, *tmp_end_procs;
-
-void
-rb_set_end_proc(void (*func)(VALUE), VALUE data)
-{
- struct end_proc_data *link = ALLOC(struct end_proc_data);
- struct end_proc_data **list;
- rb_thread_t *th = GET_THREAD();
-
- if (th->top_wrapper) {
- list = &ephemeral_end_procs;
- }
- else {
- list = &end_procs;
- }
- link->next = *list;
- link->func = func;
- link->data = data;
- link->safe = rb_safe_level();
- *list = link;
-}
-
-void
-rb_mark_end_proc(void)
-{
- struct end_proc_data *link;
-
- link = end_procs;
- while (link) {
- rb_gc_mark(link->data);
- link = link->next;
- }
- link = ephemeral_end_procs;
- while (link) {
- rb_gc_mark(link->data);
- link = link->next;
- }
- link = tmp_end_procs;
- while (link) {
- rb_gc_mark(link->data);
- link = link->next;
- }
-}
-
-void
-rb_exec_end_proc(void)
-{
- struct end_proc_data *link, *tmp;
- int status;
- volatile int safe = rb_safe_level();
-
- while (ephemeral_end_procs) {
- tmp_end_procs = link = ephemeral_end_procs;
- ephemeral_end_procs = 0;
- while (link) {
- PUSH_TAG();
- if ((status = EXEC_TAG()) == 0) {
- rb_set_safe_level_force(link->safe);
- (*link->func) (link->data);
- }
- POP_TAG();
- if (status) {
- error_handle(status);
- }
- tmp = link;
- tmp_end_procs = link = link->next;
- free(tmp);
- }
- }
- while (end_procs) {
- tmp_end_procs = link = end_procs;
- end_procs = 0;
- while (link) {
- PUSH_TAG();
- if ((status = EXEC_TAG()) == 0) {
- rb_set_safe_level_force(link->safe);
- (*link->func) (link->data);
- }
- POP_TAG();
- if (status) {
- error_handle(status);
- }
- tmp = link;
- tmp_end_procs = link = link->next;
- free(tmp);
- }
- }
- rb_set_safe_level_force(safe);
-}
-
-void
-Init_jump(void)
-{
- rb_define_global_function("catch", rb_f_catch, -1);
- rb_define_global_function("throw", rb_f_throw, -1);
- rb_define_global_function("at_exit", rb_f_at_exit, 0);
-}
generated by cgit (git 2.34.1) at 2026-02-21 21:46:37 +0000