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Error -> Defect for defects (#13908)

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* Error -> Defect for defects

The distinction between Error and Defect is subjective,
context-dependent and somewhat arbitrary, so when looking at an
exception, it's hard to guess what it is - this happens often when
looking at a `raises` list _without_ opening the corresponding
definition and digging through layers of inheritance.

With the help of a little consistency in naming, it's at least possible
to start disentangling the two error types and the standard lib can set
a good example here.
This commit is contained in:
Jacek Sieka 2020-04-28 19:56:01 +02:00 • committed by GitHub
commit 7d6cbf290a
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92 changed files with 323 additions and 300 deletions
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10
lib/system/integerops.nim
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@ -12,10 +12,10 @@
proc raiseOverflow {.compilerproc, noinline.} =
# a single proc to reduce code size to a minimum
sysFatal(OverflowError, "over- or underflow")
sysFatal(OverflowDefect, "over- or underflow")
proc raiseDivByZero {.compilerproc, noinline.} =
sysFatal(DivByZeroError, "division by zero")
sysFatal(DivByZeroDefect, "division by zero")
{.pragma: nimbaseH, importc, nodecl, noSideEffect, compilerproc.}
@ -123,10 +123,10 @@ divImplFallback(nimDivInt, int)
divImplFallback(nimDivInt64, int64)
proc raiseFloatInvalidOp {.compilerproc, noinline.} =
sysFatal(FloatInvalidOpError, "FPU operation caused a NaN result")
sysFatal(FloatInvalidOpDefect, "FPU operation caused a NaN result")
proc raiseFloatOverflow(x: float64) {.compilerproc, noinline.} =
if x > 0.0:
sysFatal(FloatOverflowError, "FPU operation caused an overflow")
sysFatal(FloatOverflowDefect, "FPU operation caused an overflow")
else:
sysFatal(FloatUnderflowError, "FPU operations caused an underflow")
sysFatal(FloatUnderflowDefect, "FPU operations caused an underflow")