refactor(pmdb): pmdb can be enabled outside of pmjs

Simply call `from pythonmonkey.lib import pmdb; pmdb.enable()`

Author: Xmader

python/pythonmonkey/cli/pmjs.py

@@ -6,7 +6,7 @@
 import sys, os, signal, getopt
 import readline
 import pythonmonkey as pm
-from pythonmonkey.lib.pmdb import pmdbEnable
+from pythonmonkey.lib import pmdb
 
 globalThis = pm.eval("globalThis")
 evalOpts = { 'filename': __file__, 'fromPythonFrame': True, 'strict': False } # type: pm.EvalOptions
@@ -351,7 +351,7 @@ def main():
         elif o in ("-r", "--require"):
             globalThis.require(a)
         elif o in ("--inspect"):
-            pmdbEnable(pm.eval("debuggerGlobal"))
+            pmdb.enable()
         else:
             assert False, "unhandled option"
 

python/pythonmonkey/lib/pmdb.py

@@ -1,8 +1,9 @@
-# @file     pmdb - A gdb-like JavaScript debugger interface for pmjs
-#                  Enabled by `pmjs --inspect`
+# @file     pmdb - A gdb-like JavaScript debugger interface
 # @author   Tom Tang <[email protected]>
 # @date     July 2023
 
+import pythonmonkey as pm
+
 def debuggerInput(prompt: str):
   try:
     return input(prompt) # blocking
@@ -13,7 +14,7 @@ def debuggerInput(prompt: str):
     print(e)
     return ""
 
-def pmdbEnable(debuggerGlobalObject):
+def enable(debuggerGlobalObject = pm.eval("debuggerGlobal")):
   debuggerGlobalObject.eval("""(debuggerInput, _pythonPrint) => {
   const dbg = new Debugger()
   const mainDebuggee = dbg.addDebuggee(mainGlobal)