红宝石 |线程 backtrace_locations()函数

Thread#backtrace_locations() : backtrace_locations()是一个 Thread 类方法，它返回目标线程的执行堆栈——一个包含回溯位置对象的数组。

Syntax: Thread.backtrace_locations()

Parameter: Thread values

Return: the execution stack for the target thread—an array containing backtrace location objects.

示例 #1：

# Ruby code for Thread.backtrace_locations() method
  
# declaring Thread 
a = Thread.new { print "a"; Thread.stop; print "c" }
  
# backtrace_locations form
puts "Thread a backtrace_locations() form : #{a.backtrace_locations()}\n\n"

输出 ：

Thread a backtrace_locations() form : []

示例 #2：

# Ruby code for Thread.backtrace_locations() method
  
# declaring Thread 
a = Thread.new { puts "HI! I am learning to code"}
  
# backtrace_locations form
puts "Thread a backtrace_locations() form : #{a.backtrace_locations()}\n\n"

输出 ：

Thread a backtrace_locations() form : []