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Add basic Swift support (requires Xcode 6) #68

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kastiglione merged 1 commit into from
Feb 7, 2015
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Add basic Swift support (requires Xcode 6) #68

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17 changes: 15 additions & 2 deletions fblldbbase.py
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Original file line number Diff line number Diff line change
Expand Up @@ -36,14 +36,27 @@ def run(self, arguments, option):
pass


def evaluateExpressionValue(expression, printErrors=True):
def evaluateExpressionValueWithLanguage(expression, language, printErrors):
# lldb.frame is supposed to contain the right frame, but it doesnt :/ so do the dance
frame = lldb.debugger.GetSelectedTarget().GetProcess().GetSelectedThread().GetSelectedFrame()
value = frame.EvaluateExpression(expression)
expr_options = lldb.SBExpressionOptions()
expr_options.SetLanguage(language) # requires lldb r210874 (2014-06-13) / Xcode 6
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@kastiglione kastiglione Jan 4, 2015

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Hey @arigrant, what do you think about baseline Xcode support? Should Chisel support anything more than just the current version of Xcode?

value = frame.EvaluateExpression(expression, expr_options)
if printErrors and value.GetError() is not None and str(value.GetError()) != 'success':
print value.GetError()
return value

def evaluateExpressionValueInFrameLanguage(expression, printErrors=True):
# lldb.frame is supposed to contain the right frame, but it doesnt :/ so do the dance
frame = lldb.debugger.GetSelectedTarget().GetProcess().GetSelectedThread().GetSelectedFrame()
language = frame.GetCompileUnit().GetLanguage() # requires lldb r222189 (2014-11-17)
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@kastiglione kastiglione Jan 4, 2015

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@mblsha Which version of Xcode includes r222189? That date is pretty recent…

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@mblsha mblsha Jan 16, 2015

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Not sure, it's not yet in 6.1.1, so evaluateExpressionValueInFrameLanguage() is not actually called anywhere and is present for future reference. Hopefully LLDB in 6.2 beta has it, but I haven't verified it.

I'll try it once it becomes final.

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@kastiglione kastiglione Jan 16, 2015

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evaluateExpressionValueInFrameLanguage() is not actually called anywhere

👍

return evaluateExpressionValueWithLanguage(expression, language, printErrors)

# evaluates expression in Objective-C++ context, so it will work even for
# Swift projects
def evaluateExpressionValue(expression, printErrors=True):
return evaluateExpressionValueWithLanguage(expression, lldb.eLanguageTypeObjC_plus_plus, printErrors)

def evaluateIntegerExpression(expression, printErrors=True):
output = evaluateExpression('(int)(' + expression + ')', printErrors).replace('\'', '')
if output.startswith('\\x'): # Booleans may display as \x01 (Hex)
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