15.4. Tracing execution
No matter where you are in the execution of your program, you got there somehow. Either you’re at the top level or you’re one or more method calls deep. Ruby provides information about how you got where you are. The chief tool for examining the method-calling history is the top-level method caller.
15.4.1. Examining the stack trace with caller
The caller method provides an array of strings. Each string represents one step in the stack trace: a description of a single method call along the way to where you are now. The strings contain information about the file or program where the method call was made, the line on which the method call occurred, and the method from which the current method was called, if any.
Here’s an ...
Get The Well-Grounded Rubyist, Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
