ExceptionError_test Class Reference

Description

Some aspects of C++ exception handling.

Not to be confused with the basic C-style error value mechanism used by the low-level parts of the vault. Both approaches are largely orthogonal, but the C++ exception handling uses the C-style error constants.

Definition at line 58 of file exception-error-test.cpp.

Classes
class	SpecificError
	a very specific Exception class local to this scope and with additional behaviour. More...

Private Types
typedef ExceptionError_test	test

Private Member Functions
virtual void	run (Arg)
void	throwSpecial (string)
void	throwDerived (string)
void	throwFatal (string _)
void	throwInvalid (string _)
void	throwExternal (string _)
void	throwRuntime (string _)
void	throwExceptn (string)
void	nestedThrower (string msg)
void	doubleNestedTh (string msg)
void	detectErrorflag (string)
void	checkErrorFlagPropagation ()
void	checkRootCauseChaining ()
void	catcher (void(ExceptionError_test::*funky)(string), string context="")
	helper: provides a bunch of catch-clauses and runs the given member functions within

Member Typedef Documentation

test

typedef ExceptionError_test test

private

Definition at line 60 of file exception-error-test.cpp.

Member Function Documentation

run()

virtual void run ( Arg  )

inlineprivatevirtual

Definition at line 63 of file exception-error-test.cpp.

References ExceptionError_test::catcher(), ExceptionError_test::checkErrorFlagPropagation(), ExceptionError_test::checkRootCauseChaining(), ExceptionError_test::doubleNestedTh(), ExceptionError_test::nestedThrower(), ExceptionError_test::throwDerived(), ExceptionError_test::throwExceptn(), ExceptionError_test::throwExternal(), ExceptionError_test::throwFatal(), ExceptionError_test::throwInvalid(), ExceptionError_test::throwRuntime(), and ExceptionError_test::throwSpecial().

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throwSpecial()

void throwSpecial ( string  )

inlineprivate

Test:

simply throw some exception and pass context info

Definition at line 83 of file exception-error-test.cpp.

Referenced by ExceptionError_test::run().

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throwDerived()

void throwDerived ( string  )

inlineprivate

Definition at line 84 of file exception-error-test.cpp.

Referenced by ExceptionError_test::run().

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throwFatal()

void throwFatal ( string  _ )

inlineprivate

Definition at line 85 of file exception-error-test.cpp.

References _.

Referenced by ExceptionError_test::run().

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throwInvalid()

void throwInvalid ( string  _ )

inlineprivate

Definition at line 86 of file exception-error-test.cpp.

References _.

Referenced by ExceptionError_test::run().

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throwExternal()

void throwExternal ( string  _ )

inlineprivate

Definition at line 87 of file exception-error-test.cpp.

References _.

Referenced by ExceptionError_test::nestedThrower(), and ExceptionError_test::run().

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throwRuntime()

void throwRuntime ( string  _ )

inlineprivate

Definition at line 88 of file exception-error-test.cpp.

References _.

Referenced by ExceptionError_test::run().

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throwExceptn()

void throwExceptn ( string  )

inlineprivate

Definition at line 89 of file exception-error-test.cpp.

Referenced by ExceptionError_test::run().

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nestedThrower()

void nestedThrower ( string  msg )

inlineprivate

Test:

catching, repackaging and rethrowing of errors. This feature is important for passing exceptions transparently over several layers. The nested operation will throw an error::External, which we are able to catch because it is derived from std::exception. We don't need to know the exact type, but we can classify the error situation as a "state error" and throw an error::State, passing on the root cause. Some levels up, this error get caught and the root cause can be extracted successfully.

Definition at line 101 of file exception-error-test.cpp.

References ExceptionError_test::throwExternal().

Referenced by ExceptionError_test::doubleNestedTh(), and ExceptionError_test::run().

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doubleNestedTh()

void doubleNestedTh ( string  msg )

inlineprivate

Test:

repeated repackaging and rethrowing

Definition at line 113 of file exception-error-test.cpp.

References ExceptionError_test::nestedThrower(), and Error::what().

Referenced by ExceptionError_test::run().

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detectErrorflag()

void detectErrorflag ( string  )

inlineprivate

Definition at line 125 of file exception-error-test.cpp.

References lumiera::throwOnError().

Referenced by ExceptionError_test::checkErrorFlagPropagation().

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checkErrorFlagPropagation()

void checkErrorFlagPropagation ( )

inlineprivate

Test:

verify throwing of Exceptions based on a non-cleared C error flag

Definition at line 131 of file exception-error-test.cpp.

References ExceptionError_test::catcher(), ExceptionError_test::detectErrorflag(), lumiera_error_peek(), and lumiera_error_set().

Referenced by ExceptionError_test::run().

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checkRootCauseChaining()

void checkRootCauseChaining ( )

inlineprivate

Test:

the chaining of lumiera::Exception objects and the retrieval of the original root cause.

Definition at line 144 of file exception-error-test.cpp.

References Error::rootCause().

Referenced by ExceptionError_test::run().

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catcher()

void catcher ( void(ExceptionError_test::*)(string)  funky, string  context = ""  )

inlineprivate

helper: provides a bunch of catch-clauses and runs the given member functions within

Definition at line 190 of file exception-error-test.cpp.

References ExceptionError_test::SpecificError::revealIt(), and Error::what().

Referenced by ExceptionError_test::checkErrorFlagPropagation(), and ExceptionError_test::run().

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Inheritance diagram for ExceptionError_test:

Collaboration diagram for ExceptionError_test:

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The documentation for this class was generated from the following file:

• exception-error-test.cpp