mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
dearblue
4c196dcdaa
Use `mrb_exec_irep()`. If possible, re-entry into the VM will be suppressed.
Note that due to the effect of being a tail-call, the backtrace of `Method#call` will be lost, and it will look as if the target method was called directly.
This change fixes the problem of infinite loops when redefining methods that make block calls using `mruby-method`.
```console
% bin/mruby -e 'mm = method(:proc); define_method(:proc, ->(*a, &b) { mm.call(*a, &b) }); p proc { 1 }'
trace (most recent call last):
[257] -e:1
[256] -e:1:in proc
[255] -e:1:in proc
...SNIP...
[1] -e:1:in proc
-e:1:in proc: stack level too deep (SystemStackError)
```
mruby-method
An implementation of class Method and UnboundMethod for mruby
p Enumerable.instance_method(:find_all).source_location
#=> ["mruby/mruby/mrblib/enum.rb", 148]
Note
You need to enable debug option in your build configuration to use
source_location method in this gem, for example:
MRuby::Build.new do |conf|
conf.enable_debug
end
Supported Methods
Kernel
Kernel#methodKernel#singleton_method
Module
Module#instance_method
Method class
Method#nameMethod#callMethod#super_methodMethod#arityMethod#unbindMethod#[]Method#ownerMethod#receiverMethod#parametersMethod#source_locationMethod#to_proc
UnboundMethod class
UnboundMethod#nameUnboundMethod#bindUnboundMethod#super_methodUnboundMethod#arityUnboundMethod#ownerUnboundMethod#parametersUnboundMethod#source_location