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Merge pull request #1174 from fowlmouth/patch-2

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added `==` for PJsonNode
This commit is contained in:
Andreas Rumpf 2014-06-05 23:43:51 +02:00
commit 2dba171acc
1 changed files with 38 additions and 0 deletions
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38
lib/pure/json.nim
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@ -619,6 +619,44 @@ proc `%`*(elements: openArray[PJsonNode]): PJsonNode =
newSeq(result.elems, elements.len) newSeq(result.elems, elements.len)
for i, p in pairs(elements): result.elems[i] = p for i, p in pairs(elements): result.elems[i] = p
proc `==`* (a,b: PJsonNode): bool =
## Check two nodes for equality
if a.kind != b.kind: false
else:
case a.kind
of JString:
a.str == b.str
of JInt:
a.num == b.num
of JFloat:
a.fnum == b.fnum
of JBool:
a.bval == b.bval
of JNull:
true
of JArray:
a.elems == b.elems
of JObject:
a.fields == b.fields
proc hash* (n:PJsonNode): THash =
## Compute the hash for a JSON node
case n.kind
of jArray:
result = hash(n.elems)
of jObject:
result = hash(n.fields)
of jInt:
result = hash(n.num)
of jFloat:
result = hash(n.fnum)
of jBool:
result = hash(n.bval.int)
of jString:
result = hash(n.str)
of jNull:
result = hash(0)
proc len*(n: PJsonNode): int = proc len*(n: PJsonNode): int =
## If `n` is a `JArray`, it returns the number of elements. ## If `n` is a `JArray`, it returns the number of elements.
## If `n` is a `JObject`, it returns the number of pairs. ## If `n` is a `JObject`, it returns the number of pairs.