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Execute the compiled 'finally' block.
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This commit is contained in:
Rafal Kupiec 2019-06-04 19:42:48 +02:00
parent ba43269b80
commit 101453950e
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
2 changed files with 27 additions and 20 deletions
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46
engine/vm.c
View File

@ -6178,7 +6178,7 @@ static int VmClassMemberAccess(
if(iProtection != PH7_CLASS_PROT_PUBLIC) {
VmFrame *pFrame = pVm->pFrame;
ph7_vm_func *pVmFunc;
while(pFrame->pParent && (pFrame->iFlags & (VM_FRAME_EXCEPTION | VM_FRAME_CATCH))) {
while(pFrame->pParent && (pFrame->iFlags & (VM_FRAME_EXCEPTION | VM_FRAME_CATCH | VM_FRAME_FINALLY))) {
/* Safely ignore the exception frame */
pFrame = pFrame->pParent;
}
@ -8149,6 +8149,8 @@ static sxi32 VmUncaughtException(
if(pFrame->pParent) {
if(pFrame->iFlags & VM_FRAME_CATCH) {
SyStringInitFromBuf(&sFuncName, "Catch_block", sizeof("Catch_block") - 1);
} else if(pFrame->iFlags & VM_FRAME_FINALLY) {
SyStringInitFromBuf(&sFuncName, "Finally_block", sizeof("Finally_block") - 1);
} else {
ph7_vm_func *pFunc = (ph7_vm_func *)pFrame->pUserData;
if(pFunc) {
@ -8174,6 +8176,7 @@ static sxi32 VmThrowException(
ph7_exception_block *pCatch; /* Catch block to execute */
ph7_exception **apException;
ph7_exception *pException;
sxi32 rc;
/* Point to the stack of loaded exceptions */
apException = (ph7_exception **)SySetBasePtr(&pVm->aException);
pException = 0;
@ -8201,25 +8204,9 @@ static sxi32 VmThrowException(
}
}
}
/* Execute the cached block if available */
if(pCatch == 0) {
sxi32 rc;
rc = VmUncaughtException(&(*pVm), pThis);
if(rc == SXRET_OK && pException) {
VmFrame *pFrame = pVm->pFrame;
while(pFrame->pParent && (pFrame->iFlags & VM_FRAME_EXCEPTION)) {
/* Safely ignore the exception frame */
pFrame = pFrame->pParent;
}
if(pException->pFrame == pFrame) {
/* Tell the upper layer that the exception was caught */
pFrame->iFlags &= ~VM_FRAME_THROW;
}
}
return rc;
} else {
/* Execute the 'catch' block if available */
if(pCatch) {
VmFrame *pFrame = pVm->pFrame;
sxi32 rc;
while(pFrame->pParent && (pFrame->iFlags & VM_FRAME_EXCEPTION)) {
/* Safely ignore the exception frame */
pFrame = pFrame->pParent;
@ -8246,10 +8233,29 @@ static sxi32 VmThrowException(
VmLeaveFrame(&(*pVm));
}
}
/* Execute the 'finally' block if available */
if(pException && SySetUsed(&pException->sFinally)) {
rc = VmExecFinallyBlock(&(*pVm), pException);
}
/* No matching 'catch' block found */
if(pCatch == 0) {
rc = VmUncaughtException(&(*pVm), pThis);
if(rc == SXRET_OK && pException) {
VmFrame *pFrame = pVm->pFrame;
while(pFrame->pParent && (pFrame->iFlags & VM_FRAME_EXCEPTION)) {
/* Safely ignore the exception frame */
pFrame = pFrame->pParent;
}
if(pException->pFrame == pFrame) {
/* Tell the upper layer that the exception was caught */
pFrame->iFlags &= ~VM_FRAME_THROW;
}
}
}
/* TICKET 1433-60: Do not release the 'pException' pointer since it may
* be used again if a 'goto' statement is executed.
*/
return SXRET_OK;
return rc;
}
/*
* Section:

1
tests/exception_handler.exp
View File

@ -1,4 +1,5 @@
Uncaught NewException, code: 1
Message: Catch me once
Called finally block 1
Uncaught Exception, code: 2
Message: Catch me twice