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backtrace and backtrace_locations can be nil (#2358)

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Exception#backtrace and Exception#backtrace_locations can both be nil if
not set. The former can be set via `Exception#set_backtrace`, but the
later is only ever set at runtime via `setup_backtrace`.
This commit is contained in:
Steven Harman 2019-08-14 10:35:47 -04:00 • committed by Aaron Patterson
parent 48e9155e65
commit 7da40d74e1
1 changed files with 9 additions and 3 deletions
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12
error.c
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@ -1114,7 +1114,7 @@ exc_inspect(VALUE exc)
/* /*
* call-seq: * call-seq:
* exception.backtrace -> array * exception.backtrace -> array or nil
* *
* Returns any backtrace associated with the exception. The backtrace * Returns any backtrace associated with the exception. The backtrace
* is an array of strings, each containing either ``filename:lineNo: in * is an array of strings, each containing either ``filename:lineNo: in
@ -1139,6 +1139,12 @@ exc_inspect(VALUE exc)
* prog.rb:2:in `a' * prog.rb:2:in `a'
* prog.rb:6:in `b' * prog.rb:6:in `b'
* prog.rb:10 * prog.rb:10
*
* In the case no backtrace has been set, +nil+ is returned
*
* ex = StandardError.new
* ex.backtrace
* #=> nil
*/ */
static VALUE static VALUE
@ -1179,13 +1185,13 @@ rb_get_backtrace(VALUE exc)
/* /*
* call-seq: * call-seq:
* exception.backtrace_locations -> array * exception.backtrace_locations -> array or nil
* *
* Returns any backtrace associated with the exception. This method is * Returns any backtrace associated with the exception. This method is
* similar to Exception#backtrace, but the backtrace is an array of * similar to Exception#backtrace, but the backtrace is an array of
* Thread::Backtrace::Location. * Thread::Backtrace::Location.
* *
* Now, this method is not affected by Exception#set_backtrace(). * This method is not affected by Exception#set_backtrace().
*/ */
static VALUE static VALUE
exc_backtrace_locations(VALUE exc) exc_backtrace_locations(VALUE exc)