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a6682de004
* allow defects to be caught even for --exceptions:goto (WIP) * implemented the new --panics:on|off switch; refs https://github.com/nim-lang/RFCs/issues/180 * new implementation for integer overflow checking * produce a warning if a user-defined exception type inherits from Exception directly * applied Timothee's suggestions; improved the documentation and replace the term 'checked runtime check' by 'panic' * fixes #13627 * don't inherit from Exception directly
55 lines
1.4 KiB
Nim
55 lines
1.4 KiB
Nim
#
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#
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# Nim's Runtime Library
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# (c) Copyright 2019 Andreas Rumpf
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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#
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{.push profiler: off.}
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when defined(nimHasExceptionsQuery):
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const gotoBasedExceptions = compileOption("exceptions", "goto")
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else:
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const gotoBasedExceptions = false
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when hostOS == "standalone":
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include "$projectpath/panicoverride"
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proc sysFatal(exceptn: typedesc, message: string) {.inline.} =
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panic(message)
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proc sysFatal(exceptn: typedesc, message, arg: string) {.inline.} =
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rawoutput(message)
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panic(arg)
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elif (defined(nimQuirky) or defined(nimPanics)) and not defined(nimscript):
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import ansi_c
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proc name(t: typedesc): string {.magic: "TypeTrait".}
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proc sysFatal(exceptn: typedesc, message, arg: string) {.inline, noreturn.} =
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writeStackTrace()
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var buf = newStringOfCap(200)
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add(buf, "Error: unhandled exception: ")
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add(buf, message)
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add(buf, arg)
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add(buf, " [")
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add(buf, name exceptn)
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add(buf, "]\n")
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cstderr.rawWrite buf
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quit 1
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proc sysFatal(exceptn: typedesc, message: string) {.inline, noreturn.} =
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sysFatal(exceptn, message, "")
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else:
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proc sysFatal(exceptn: typedesc, message: string) {.inline, noreturn.} =
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raise (ref exceptn)(msg: message)
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proc sysFatal(exceptn: typedesc, message, arg: string) {.inline, noreturn.} =
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raise (ref exceptn)(msg: message & arg)
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{.pop.}
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