jyapayne/Nim
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

catchable defects (#13626)

Browse source 
* 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
This commit is contained in:
Andreas Rumpf 2020-03-12 23:44:33 +01:00 • committed by GitHub
commit a6682de004
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
35 changed files with 441 additions and 142 deletions
Download patch file Download diff file Expand all files Collapse all files

18
lib/system/chcks.nim
View file

@ -28,6 +28,19 @@ proc raiseIndexError() {.compilerproc, noinline.} =
proc raiseFieldError(f: string) {.compilerproc, noinline.} =
sysFatal(FieldError, f)
proc raiseRangeErrorI(i, a, b: BiggestInt) {.compilerproc, noinline.} =
sysFatal(RangeError, "value out of range: " & $i & " notin " & $a & " .. " & $b)
proc raiseRangeErrorF(i, a, b: float) {.compilerproc, noinline.} =
sysFatal(RangeError, "value out of range: " & $i & " notin " & $a & " .. " & $b)
proc raiseRangeErrorU(i, a, b: uint64) {.compilerproc, noinline.} =
# todo: better error reporting
sysFatal(RangeError, "value out of range")
proc raiseObjectConversionError() {.compilerproc, noinline.} =
sysFatal(ObjectConversionError, "invalid object conversion")
proc chckIndx(i, a, b: int): int =
if i >= a and i <= b:
return i
@ -116,6 +129,5 @@ when not defined(nimV2):
return true
when defined(nimV2):
proc nimFieldDiscriminantCheckV2(oldDiscVal, newDiscVal: uint8) {.compilerproc.} =
if oldDiscVal != newDiscVal:
sysFatal(FieldError, "assignment to discriminant changes object branch")
proc raiseObjectCaseTransition() {.compilerproc.} =
sysFatal(FieldError, "assignment to discriminant changes object branch")