Firebug 1.7: Firebug Service

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Some notes about firebug-service module analysis in Firebug 1.7

Contents

[edit] Resources

[edit] Objects

List of helper objects used by Firebug debugger.

  • fbs: a self reference, to avoid 'this' since fbs is one per application.
  • jsdHandlers: global holding all of the current created jsd hooks
  • FirebugPrefsObserver
  • BreakOnNextCall(debuggr, context)

[edit] Stepper Objects

Every time a user steps one or more of these are created.

  • LineStepper(debuggr, context)
  • OutStepper(debuggr, context)
  • IntoStepper(debuggr, context)

[edit] Interfaces

List of JSD interfaces utilized by Firebug debugger.

[edit] Stepping

Stepping in the debugger (over, into, out) is implemented using steppers. These objects behave the same way as the Controller in famous MVC pattern.


[edit] Step Over: Line Stepper

Following diagram depicts how step over logic is implemented and how Line Stepper object is involved.

Step-over.png

  • All logic associated with the Firebug.Debugger object (onBreak, stop, enterNestedEventLoop and exitNestedEventLoop should be part of Firebug Service (FBS)
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