fix: prevent tracer recursion

Avoid capturing the tracer object itself when preparing argument records and disable tracepoints while recording Kernel event hooks. Ensure patches remove aliases when uninstalled and update gem installation test script.

Author: zah

gems/codetracer-pure-ruby-recorder/lib/codetracer/kernel_patches.rb

@@ -54,6 +54,9 @@ def self.uninstall(tracer)
           alias_method :p, :codetracer_original_p
           alias_method :puts, :codetracer_original_puts
           alias_method :print, :codetracer_original_print
+          remove_method :codetracer_original_p
+          remove_method :codetracer_original_puts
+          remove_method :codetracer_original_print
         end
       end
     end

gems/codetracer-pure-ruby-recorder/lib/codetracer_pure_ruby_recorder.rb

@@ -125,15 +125,24 @@ def setup_tracepoints
 
     def prepare_args(tp)
       args_after_self = tp.parameters.map do |(kind, name)|
-        value = if tp.binding.nil? || name.nil?
-            @record.nil_value
-          else
-            begin
-              @record.to_value(tp.binding.local_variable_get(name))
-            rescue
-              @record.nil_value
-            end
-          end
+        raw = if tp.binding.nil? || name.nil?
+                nil
+              else
+                begin
+                  tp.binding.local_variable_get(name)
+                rescue
+                  nil
+                end
+              end
+
+        value = if raw.nil?
+                  @record.nil_value
+                elsif raw.equal?(self) || raw.equal?(@record)
+                  @record.raw_obj_value(raw.to_s, raw.class.name)
+                else
+                  @record.to_value(raw)
+                end
+
         [name.to_sym, value]
       end
 
@@ -198,6 +207,7 @@ def record_step(tp)
     end
 
     def record_event(*args)
+      disable_tracepoints
       if args.length == 2
         caller, content = args
         begin
@@ -214,6 +224,7 @@ def record_event(*args)
       else
         raise ArgumentError, "wrong number of arguments"
       end
+      enable_tracepoints
     end
 
     def record_exception(tp)

gems/codetracer-pure-ruby-recorder/lib/recorder.rb

@@ -362,7 +362,6 @@ def nil_value
   MAX_COUNT = 5000
 
   def to_value(v, depth=10)
-    codetracer_original_p v
     if depth <= 0
       return nil_value
     end

test/test_tracer.rb

@@ -134,13 +134,13 @@ def run_gem_installation_test(gem_bin, gem_module)
           require '#{gem_module}'
           recorder = #{recorder_class}.new
           puts 'start trace'
-          # recorder.stop
+          recorder.stop
           puts 'this will not be traced'
           recorder.start
-          # puts 'this will be traced'
+          puts 'this will be traced'
           recorder.stop
-          # puts 'tracing disabled'
-          # recorder.flush_trace('#{out_dir_lib}')
+          puts 'tracing disabled'
+          recorder.flush_trace('#{out_dir_lib}')
         RUBY
         script_path = File.join('test', 'tmp', "use_#{gem_bin.tr('-', '_')}.rb")
         File.write(script_path, script)