| Format | Assembly Format | Description |
|---|---|---|
| FE 11 | `endfilter | End an exception handling filter clause. |
…, value → …
Used to return from the filter clause of an exception (see the Exception Handling subclause of Partition I for a discussion of exceptions). value (which shall be of type int32 and one of a specific set of values) is returned from the filter clause. It should be one of:
-
exception_continue_search(0) to continue searching for an exception handler -
exception_execute_handler(1) to start the second phase of exception handling where finally blocks are run until the handler associated with this filter clause is located. Then the handler is executed.
The result of using any other integer value is unspecified.
The entry point of a filter, as shown in the method's exception table, shall be the (lexically) first instruction in the filter's code block. The endfilter shall be the (lexically) last instruction in the filter's code block (hence there can only be one endfilter for any single filter block). After executing the endfilter instruction, control logically flows back to the CLI exception handling mechanism.
Control cannot be transferred into a filter block except through the exception mechanism. Control cannot be transferred out of a filter block except through the use of a throw instruction or executing the final endfilter instruction. In particular, it is not valid to execute a ret or leave instruction within a filter block. It is not valid to embed a try block within a filter block. If an exception is thrown inside the filter block, it is intercepted and a value of exception_continue_search is returned.
None.
Correct CIL guarantees the control transfer restrictions specified above.
The stack shall contain exactly one item (of type int32).