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pkp: po alternative to lookup via valueForKeyPath: #53

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Merged
kastiglione merged 4 commits into from
Nov 25, 2014
Merged

pkp: po alternative to lookup via valueForKeyPath: #53

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ce3dc97
Initial version of pkp, a command to print out via keypaths
Nov 20, 2014
5ccee16
Add an error message, made class invocation more durable.
Nov 20, 2014
72adcb4
Fix help message, clean up python.
Nov 21, 2014
bea8bee
If there's no '.', just pass the command to po, and evaluate the firs…
Nov 22, 2014
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23 changes: 23 additions & 0 deletions commands/FBPrintCommands.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ def lldbcommands():
FBPrintOnscreenTableViewCells(),
FBPrintInternals(),
FBPrintInstanceVariable(),
FBPrintKeyPath(),
]

class FBPrintViewHierarchyCommand(fb.FBCommand):
Expand Down Expand Up @@ -272,3 +273,25 @@ def run(self, arguments, options):

printCommand = 'po' if ('@' in ivarTypeEncodingFirstChar) else 'p'
lldb.debugger.HandleCommand('{} (({} *)({}))->{}'.format(printCommand, objectClass, object, ivarName))

class FBPrintKeyPath(fb.FBCommand):
def name(self):
return 'pkp'

def description(self):
return "Print out the value of the key path expression using -valueForKeyPath:"

def args(self):
return [
fb.FBCommandArgument(arg='keypath', type='NSString *', help='The keypath to print'),
]

def run(self, arguments, options):
command = arguments[0]
if len(command.split('.')) == 1:
lldb.debugger.HandleCommand("po " + command)
else:
objectToMessage, keypath = command.split('.', 1)
object = fb.evaluateObjectExpression(objectToMessage)
printCommand = 'po [{} valueForKeyPath:@"{}"]'.format(object, keypath)
lldb.debugger.HandleCommand(printCommand)