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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
// FiltFallThru.asm
// Revised 4.01.99 by t-joecl
//
// Apply filters that don't trap an exception, then catch it in an
// outer .exception aHandler.
//
.assembly extern legacy library mscorlib{}
.assembly extern System.Console
{
.publickeytoken = (B0 3F 5F 7F 11 D5 0A 3A )
.ver 4:0:0:0
}
.assembly FiltFallThru{}
.class FiltFallThru {
// global for storing return value - defaults to 0 for success
// .data iResult = int32(0x00000000)
.field static int32 iResult
// Execution starts here
.method static int32 main(class [mscorlib]System.String[]) {
.locals(string)
.entrypoint
.maxstack 2
ldstr "Done"
stloc.0
.try{
.try{
try_start:
newobj instance void [mscorlib]System.Security.SecurityException::.ctor()
throw
try_end:
// Error case 4 - exception _not thrown
ldstr "Error case 4 - exception _not thrown"
call void [System.Console]System.Console::WriteLine(class System.String)
ldc.i4 0x4
stsfld int32 FiltFallThru::iResult
leave ENDOFTEST
}
// aFilter two exceptions that won't be encountered;
// let them fall through.
filter{
OOMfilter:
isinst [mscorlib]System.OutOfMemoryException
leave OOMcontinue
// Error case 2 - aFilter failure: filtered the wrong exception
ldstr "Error case 2 - aFilter failure: filtered the wrong exception"
call void [System.Console]System.Console::WriteLine(class System.String)
ldc.i4 0x2
stsfld int32 FiltFallThru::iResult
ldnull
leave OOMendfilter
OOMcontinue:
ldnull
OOMendfilter:
AEfilter:
isinst [mscorlib]System.ArithmeticException
leave AEcontinue
// Error case 2 - aFilter failure: filtered the wrong exception
ldstr "Error case 2 - aFilter failure: filtered the wrong exception"
call void [System.Console]System.Console::WriteLine(class System.String)
ldc.i4 0x2
stsfld int32 FiltFallThru::iResult
ldc.i4 0x00000001
leave AEendfilter
AEcontinue:
ldc.i4 0x00000000
AEendfilter:
endfilter
}
{
FILThandler:
pop
// isinst System.ArithmeticException
// brfalse FILTcontinue
// br FILTcontinue
FILTcontinue:
// Error case 3 - running aHandler for the wrong aFilter
ldstr "Error case 3 - running aHandler for the wrong aFilter"
call void [System.Console]System.Console::WriteLine(class System.String)
ldc.i4 0x3
stsfld int32 FiltFallThru::iResult
leave ENDFILThandler
ENDFILThandler:
leave ENDOFTEST
FILThandler1:
pop
// isinst System.ArithmeticException
// brfalse FILTcontinue1
// br FILTcontinue1
FILTcontinue1:
// Error case 3 - running aHandler for the wrong aFilter
ldstr "Error case 3 - running aHandler for the wrong aFilter"
call void [System.Console]System.Console::WriteLine(class System.String)
ldc.i4 0x3
stsfld int32 FiltFallThru::iResult
leave ENDFILThandler1
ENDFILThandler1:
leave ENDOFTEST
}
}
catch [mscorlib]System.Security.SecurityException{
SEChandler:
isinst [mscorlib]System.Security.SecurityException
brfalse handler_fail
br end_handler
handler_fail:
// Error case 1 - aHandler failure: trapped the wrong exception
ldc.i4 0x1
stsfld int32 FiltFallThru::iResult
ldstr "Error case 1 - aHandler failure: trapped the wrong exception"
call void [System.Console]System.Console::WriteLine(class System.String)
end_handler:
leave ENDOFTEST
}
ENDOFTEST:
ldsfld int32 FiltFallThru::iResult
ldc.i4 0
ceq
brfalse RETFAIL
ldstr "Test succeeded (returning 100)."
call void [System.Console]System.Console::WriteLine(class System.String)
ldc.i4 0x64
br RETEND
RETFAIL:
ldstr "Test FAILED."
call void [System.Console]System.Console::WriteLine(class System.String)
ldsfld int32 FiltFallThru::iResult
RETEND:
ldloc.0
call void [System.Console]System.Console::WriteLine(class System.String)
ret
}
}
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