End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Fiber#backtrace_locations

fiber.backtrace_locations → array

fiber.backtrace_locations(start) → array

fiber.backtrace_locations(start, count) → array

fiber.backtrace_locations(start..end) → array

static VALUE
rb_fiber_backtrace_locations(int argc, VALUE *argv, VALUE fiber)
{
    return rb_vm_backtrace_locations(argc, argv, &fiber_ptr(fiber)->cont.saved_ec);
}

Like backtrace, but returns each line of the execution stack as a Thread::Backtrace::Location. Accepts the same arguments as backtrace.

Example

f = Fiber.new { Fiber.yield }
f.resume
loc = f.backtrace_locations.first
loc.label  #=> "yield"
loc.path   #=> "test.rb"
loc.lineno #=> 1

Ruby version changes

3.0
- Fiber#backtrace and Fiber#backtrace_locations provide per-fiber backtrace. [Feature #16815]

See also #backtrace #blocking? #alive? #inspect also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1

‹ prev#backtrace next ›#blocking?