Format | Assembly Format | Description |
---|---|---|
DC | endfault |
End fault clause of an exception block. |
DC | endfinally |
End finally clause of an exception block. |
… → …
Return from the finally or fault clause of an exception block (see the Exception Handling subclause of Partition I for details).
Signals the end of the finally or fault clause so that stack unwinding can continue until the exception handler is invoked. The endfinally
or endfault
instruction transfers control back to the CLI exception mechanism. This then searches for the next finally clause in the chain, if the protected block was exited with a leave
instruction. If the protected block was exited with an exception, the CLI will search for the next finally or fault, or enter the exception handler chosen during the first pass of exception handling.
An endfinally
instruction can only appear lexically within a finally block. Unlike the endfilter
instruction, there is no requirement that the block end with an endfinally
instruction, and there can be as many endfinally
instructions within the block as required. These same restrictions apply to the endfault
instruction and the fault block, mutatis mutandis.
Control cannot be transferred into a finally (or fault) block except through the exception mechanism. Control cannot be transferred out of a finally (or fault) block except through the use of a throw
instruction or executing the endfinally
(or endfault
) instruction. In particular, it is not valid to "fall out" of a finally (or fault) block or to execute a ret
or leave
instruction within a finally (or fault) block.
Note that the endfault
and endfinally
instructions are aliases—they correspond to the same opcode.
endfinally
empties the evaluation stack as a side-effect.
None.
Correct CIL guarantees the control transfer restrictions specified above.
There are no additional verification requirements.