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f9f13a4f6d
Previously, if there were ignored frames (iseq without pc), we could go beyond the requested start frame. This has two changes: 1) Ensure that we don't look beyond the start frame by using last_cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(last_cfp) until the desired start frame is reached. 2) To fix the failures caused by change 1), which occur when a limited number of frames is requested, scan the VM stack before allocating backtrace frames, looking for ignored frames. This is complicated if there are ignored frames before and after the start, in which case we need to scan until the start frame, and then scan backwards, decrementing the start value until we get to the point where start will result in the number of requested frames. This fixes a Rails test failure. Jean Boussier was able to to produce a failing test case outside of Rails. Co-authored-by: Jean Boussier <jean.boussier@gmail.com> |
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| test_shellwords.rb | ||
| test_singleton.rb | ||
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