support viewing non-current threads backtraces

Author: denofevil

lib/ruby-debug-ide/commands/threads.rb

@@ -59,6 +59,31 @@ def help(cmd)
     end
   end
 
+  class ThreadInspectCommand < Command # :nodoc:
+    self.control = true
+    self.need_context = true
+
+    def regexp
+      /^\s*th(?:read)?\s+in(?:spect)?\s+(\d+)\s*$/
+    end
+
+    def execute
+      @state.context = get_context(@match[1].to_i)      
+    end
+
+    class << self
+      def help_command
+        'thread'
+      end
+
+      def help(cmd)
+        %{
+          th[read] in[spect] <nnn>\tswitch thread context to nnn but don't resume any threads
+        }
+      end
+    end
+  end
+
   class ThreadStopCommand < Command # :nodoc:
     self.control = true
     self.need_context = true

lib/ruby-debug-ide/ide_processor.rb

@@ -42,9 +42,10 @@ def process_commands
               end
             else
               @printer.print_msg "Unknown command: #{input}"
-            end
+            end            
           end
         end
+        state.restore_context
       end
     rescue IOError, Errno::EPIPE
       @printer.print_error "INTERNAL ERROR!!! #{$!}\n" rescue nil
@@ -105,7 +106,8 @@ def process_commands
 
   class State # :nodoc:
 
-    attr_accessor :context, :file, :line, :binding
+    attr_accessor :context, :original_context
+    attr_accessor :file, :line, :binding
     attr_accessor :frame_pos, :previous_line
     attr_accessor :interface
 
@@ -114,6 +116,7 @@ def initialize
       @previous_line = nil
       @proceed = false
       yield self
+      @original_context = context
     end
 
     def print(*args)
@@ -127,6 +130,10 @@ def proceed?
     def proceed
       @proceed = true
     end
+
+    def restore_context
+      context = @original_context
+    end
   end
 
   class ControlState # :nodoc:

lib/ruby-debug-ide/version.rb

@@ -1,3 +1,3 @@
 module Debugger
-  IDE_VERSION='0.4.18'
+  IDE_VERSION='0.4.21.pre1'
 end