diff options
Diffstat (limited to 'lib/system/excpt.nim')
-rw-r--r-- | lib/system/excpt.nim | 109 |
1 files changed, 65 insertions, 44 deletions
diff --git a/lib/system/excpt.nim b/lib/system/excpt.nim index a71328c14..dae5c4a4a 100644 --- a/lib/system/excpt.nim +++ b/lib/system/excpt.nim @@ -73,26 +73,45 @@ type when NimStackTraceMsgs: var frameMsgBuf* {.threadvar.}: string + +when not defined(nimV2): + var + framePtr {.threadvar.}: PFrame + var - framePtr {.threadvar.}: PFrame - excHandler {.threadvar.}: PSafePoint - # list of exception handlers - # a global variable for the root of all try blocks currException {.threadvar.}: ref Exception - gcFramePtr {.threadvar.}: GcFrame -type - FrameState = tuple[gcFramePtr: GcFrame, framePtr: PFrame, - excHandler: PSafePoint, currException: ref Exception] +when not gotoBasedExceptions: + var + excHandler {.threadvar.}: PSafePoint + # list of exception handlers + # a global variable for the root of all try blocks + gcFramePtr {.threadvar.}: GcFrame + +when gotoBasedExceptions: + type + FrameState = tuple[framePtr: PFrame, + currException: ref Exception] +else: + type + FrameState = tuple[gcFramePtr: GcFrame, framePtr: PFrame, + excHandler: PSafePoint, currException: ref Exception] proc getFrameState*(): FrameState {.compilerRtl, inl.} = - return (gcFramePtr, framePtr, excHandler, currException) + when gotoBasedExceptions: + return (framePtr, currException) + else: + return (gcFramePtr, framePtr, excHandler, currException) proc setFrameState*(state: FrameState) {.compilerRtl, inl.} = - gcFramePtr = state.gcFramePtr - framePtr = state.framePtr - excHandler = state.excHandler - currException = state.currException + when gotoBasedExceptions: + framePtr = state.framePtr + currException = state.currException + else: + gcFramePtr = state.gcFramePtr + framePtr = state.framePtr + excHandler = state.excHandler + currException = state.currException proc getFrame*(): PFrame {.compilerRtl, inl.} = framePtr @@ -114,20 +133,21 @@ when false: proc setFrame*(s: PFrame) {.compilerRtl, inl.} = framePtr = s -proc getGcFrame*(): GcFrame {.compilerRtl, inl.} = gcFramePtr -proc popGcFrame*() {.compilerRtl, inl.} = gcFramePtr = gcFramePtr.prev -proc setGcFrame*(s: GcFrame) {.compilerRtl, inl.} = gcFramePtr = s -proc pushGcFrame*(s: GcFrame) {.compilerRtl, inl.} = - s.prev = gcFramePtr - zeroMem(cast[pointer](cast[int](s)+%sizeof(GcFrameHeader)), s.len*sizeof(pointer)) - gcFramePtr = s +when not gotoBasedExceptions: + proc getGcFrame*(): GcFrame {.compilerRtl, inl.} = gcFramePtr + proc popGcFrame*() {.compilerRtl, inl.} = gcFramePtr = gcFramePtr.prev + proc setGcFrame*(s: GcFrame) {.compilerRtl, inl.} = gcFramePtr = s + proc pushGcFrame*(s: GcFrame) {.compilerRtl, inl.} = + s.prev = gcFramePtr + zeroMem(cast[pointer](cast[int](s)+%sizeof(GcFrameHeader)), s.len*sizeof(pointer)) + gcFramePtr = s -proc pushSafePoint(s: PSafePoint) {.compilerRtl, inl.} = - s.prev = excHandler - excHandler = s + proc pushSafePoint(s: PSafePoint) {.compilerRtl, inl.} = + s.prev = excHandler + excHandler = s -proc popSafePoint {.compilerRtl, inl.} = - excHandler = excHandler.prev + proc popSafePoint {.compilerRtl, inl.} = + excHandler = excHandler.prev proc pushCurrentException(e: sink(ref Exception)) {.compilerRtl, inl.} = e.up = currException @@ -397,9 +417,9 @@ proc reportUnhandledErrorAux(e: ref Exception) {.nodestroy, gcsafe.} = xadd(buf, e.name, e.name.len) add(buf, "]\n") if onUnhandledException != nil: - onUnhandledException($buf.addr) + onUnhandledException($cast[cstring](buf.addr)) else: - showErrorMessage(buf.addr, L) + showErrorMessage(cast[cstring](buf.addr), L) proc reportUnhandledError(e: ref Exception) {.nodestroy, gcsafe.} = if unhandledExceptionHook != nil: @@ -407,15 +427,16 @@ proc reportUnhandledError(e: ref Exception) {.nodestroy, gcsafe.} = when hostOS != "any": reportUnhandledErrorAux(e) -proc nimLeaveFinally() {.compilerRtl.} = - when defined(cpp) and not defined(noCppExceptions) and not gotoBasedExceptions: - {.emit: "throw;".} - else: - if excHandler != nil: - c_longjmp(excHandler.context, 1) +when not gotoBasedExceptions: + proc nimLeaveFinally() {.compilerRtl.} = + when defined(cpp) and not defined(noCppExceptions) and not gotoBasedExceptions: + {.emit: "throw;".} else: - reportUnhandledError(currException) - quit(1) + if excHandler != nil: + c_longjmp(excHandler.context, 1) + else: + reportUnhandledError(currException) + rawQuit(1) when gotoBasedExceptions: var nimInErrorMode {.threadvar.}: bool @@ -430,13 +451,13 @@ when gotoBasedExceptions: if nimInErrorMode and currException != nil: reportUnhandledError(currException) currException = nil - quit(1) + rawQuit(1) proc raiseExceptionAux(e: sink(ref Exception)) {.nodestroy.} = when defined(nimPanics): if e of Defect: reportUnhandledError(e) - quit(1) + rawQuit(1) if localRaiseHook != nil: if not localRaiseHook(e): return @@ -448,7 +469,7 @@ proc raiseExceptionAux(e: sink(ref Exception)) {.nodestroy.} = else: pushCurrentException(e) {.emit: "throw `e`;".} - elif defined(nimQuirky) or gotoBasedExceptions: + elif quirkyExceptions or gotoBasedExceptions: pushCurrentException(e) when gotoBasedExceptions: inc nimInErrorMode @@ -458,7 +479,7 @@ proc raiseExceptionAux(e: sink(ref Exception)) {.nodestroy.} = c_longjmp(excHandler.context, 1) else: reportUnhandledError(e) - quit(1) + rawQuit(1) proc raiseExceptionEx(e: sink(ref Exception), ename, procname, filename: cstring, line: int) {.compilerRtl, nodestroy.} = @@ -501,7 +522,7 @@ proc threadTrouble() = if currException != nil: reportUnhandledError(currException) except: discard - quit 1 + rawQuit 1 proc writeStackTrace() = when hasSomeStackTrace: @@ -544,7 +565,7 @@ proc callDepthLimitReached() {.noinline.} = "-d:nimCallDepthLimit=<int> but really try to avoid deep " & "recursions instead.\n" showErrorMessage2(msg) - quit(1) + rawQuit(1) proc nimFrame(s: PFrame) {.compilerRtl, inl, raises: [].} = if framePtr == nil: @@ -560,7 +581,7 @@ proc nimFrame(s: PFrame) {.compilerRtl, inl, raises: [].} = when defined(cpp) and appType != "lib" and not gotoBasedExceptions and not defined(js) and not defined(nimscript) and hostOS != "standalone" and hostOS != "any" and not defined(noCppExceptions) and - not defined(nimQuirky): + not quirkyExceptions: type StdException {.importcpp: "std::exception", header: "<exception>".} = object @@ -597,7 +618,7 @@ when defined(cpp) and appType != "lib" and not gotoBasedExceptions and else: writeToStdErr msg & "\n" - quit 1 + rawQuit 1 when not defined(noSignalHandler) and not defined(useNimRtl): type Sighandler = proc (a: cint) {.noconv, benign.} @@ -651,7 +672,7 @@ when not defined(noSignalHandler) and not defined(useNimRtl): # also return the correct exit code to the shell. discard c_raise(sign) else: - quit(1) + rawQuit(1) var SIG_IGN {.importc: "SIG_IGN", header: "<signal.h>".}: Sighandler |