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up to 20x faster jsonutils deserialization (#18183)

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* up to 20x faster jsonutils deserialization

* noinline
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Timothee Cour 2021-06-05 00:45:37 -07:00 • committed by GitHub
commit 9c6259e557
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1 changed files with 6 additions and 6 deletions
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12
lib/std/jsonutils.nim
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@ -128,14 +128,14 @@ macro initCaseObject(T: typedesc, fun: untyped): untyped =
`fun`(`key2`, typedesc[`typ`]) `fun`(`key2`, typedesc[`typ`])
result.add newTree(nnkExprColonExpr, key, val) result.add newTree(nnkExprColonExpr, key, val)
proc checkJsonImpl(cond: bool, condStr: string, msg = "") = proc raiseJsonException(condStr: string, msg: string) {.noinline.} =
if not cond: # just pick 1 exception type for simplicity; other choices would be:
# just pick 1 exception type for simplicity; other choices would be: # JsonError, JsonParser, JsonKindError
# JsonError, JsonParser, JsonKindError raise newException(ValueError, condStr & " failed: " & msg)
raise newException(ValueError, msg)
template checkJson(cond: untyped, msg = "") = template checkJson(cond: untyped, msg = "") =
checkJsonImpl(cond, astToStr(cond), msg) if not cond:
raiseJsonException(astToStr(cond), msg)
proc hasField[T](obj: T, field: string): bool = proc hasField[T](obj: T, field: string): bool =
for k, _ in fieldPairs(obj): for k, _ in fieldPairs(obj):