diff options
Diffstat (limited to 'lib/pure/json.nim')
| -rw-r--r-- | lib/pure/json.nim | 79 |
1 files changed, 67 insertions, 12 deletions
diff --git a/lib/pure/json.nim b/lib/pure/json.nim index 010dd8f70..176da1d9d 100644 --- a/lib/pure/json.nim +++ b/lib/pure/json.nim @@ -130,9 +130,9 @@ ## { "name": "Susan", "age": herAge } ## ] ## -## var j2 = %* {"name": "Isaac", "books": ["Robot Dreams"]} -## j2["details"] = %* {"age":35, "pi":3.1415} -## echo j2 +## var j2 = %* {"name": "Isaac", "books": ["Robot Dreams"]} +## j2["details"] = %* {"age":35, "pi":3.1415} +## echo j2 runnableExamples: ## Note: for JObject, key ordering is preserved, unlike in some languages, @@ -142,7 +142,8 @@ runnableExamples: doAssert $(%* Foo()) == """{"a1":0,"a2":0,"a0":0,"a3":0,"a4":0}""" import - hashes, tables, strutils, lexbase, streams, unicode, macros, parsejson + hashes, tables, strutils, lexbase, streams, unicode, macros, parsejson, + typetraits export tables.`$` @@ -356,6 +357,25 @@ when false: assert false notin elements, "usage error: only empty sets allowed" assert true notin elements, "usage error: only empty sets allowed" +proc `[]=`*(obj: JsonNode, key: string, val: JsonNode) {.inline.} = + ## Sets a field from a `JObject`. + assert(obj.kind == JObject) + obj.fields[key] = val + +#[ +Note: could use simply: +proc `%`*(o: object|tuple): JsonNode +but blocked by https://github.com/nim-lang/Nim/issues/10019 +]# +proc `%`*(o: tuple): JsonNode = + ## Generic constructor for JSON data. Creates a new `JObject JsonNode` + when isNamedTuple(type(o)): + result = newJObject() + for k, v in o.fieldPairs: result[k] = %v + else: + result = newJArray() + for a in o.fields: result.add(%a) + proc `%`*(o: object): JsonNode = ## Generic constructor for JSON data. Creates a new `JObject JsonNode` result = newJObject() @@ -507,11 +527,6 @@ proc contains*(node: JsonNode, val: JsonNode): bool = proc existsKey*(node: JsonNode, key: string): bool {.deprecated: "use hasKey instead".} = node.hasKey(key) ## **Deprecated:** use `hasKey` instead. -proc `[]=`*(obj: JsonNode, key: string, val: JsonNode) {.inline.} = - ## Sets a field from a `JObject`. - assert(obj.kind == JObject) - obj.fields[key] = val - proc `{}`*(node: JsonNode, keys: varargs[string]): JsonNode = ## Traverses the node and gets the given value. If any of the ## keys do not exist, returns ``nil``. Also returns ``nil`` if one of the @@ -610,7 +625,7 @@ proc escapeJsonUnquoted*(s: string; result: var string) = of '\r': result.add("\\r") of '"': result.add("\\\"") of '\0'..'\7': result.add("\\u000" & $ord(c)) - of '\14'..'\31': result.add("\\u00" & $ord(c)) + of '\14'..'\31': result.add("\\u00" & toHex(ord(c), 2)) of '\\': result.add("\\\\") else: result.add(c) @@ -693,6 +708,22 @@ proc toPretty(result: var string, node: JsonNode, indent = 2, ml = true, proc pretty*(node: JsonNode, indent = 2): string = ## Returns a JSON Representation of `node`, with indentation and ## on multiple lines. + ## + ## Similar to prettyprint in Python. + runnableExamples: + let j = %* {"name": "Isaac", "books": ["Robot Dreams"], + "details": {"age":35, "pi":3.1415}} + doAssert pretty(j) == """ +{ + "name": "Isaac", + "books": [ + "Robot Dreams" + ], + "details": { + "age": 35, + "pi": 3.1415 + } +}""" result = "" toPretty(result, node, indent) @@ -1313,6 +1344,12 @@ proc createConstructor(typeSym, jsonNode: NimNode): NimNode = let obj = getType(typeSym[1]) result = processType(newIdentNode(typeName), obj, jsonNode, true) + of "range": + let typeNode = typeSym + # Deduce the base type from one of the endpoints + let baseType = getType(typeNode[1]) + + result = createConstructor(baseType, jsonNode) of "seq": let seqT = typeSym[1] let forLoopI = genSym(nskForVar, "i") @@ -1671,9 +1708,9 @@ when isMainModule: doAssert(parsed2{"repository", "description"}.str=="IRC Library for Haskell", "Couldn't fetch via multiply nested key using {}") doAssert escapeJsonUnquoted("\10Foo🎃barÄ") == "\\nFoo🎃barÄ" - doAssert escapeJsonUnquoted("\0\7\20") == "\\u0000\\u0007\\u0020" # for #7887 + doAssert escapeJsonUnquoted("\0\7\20") == "\\u0000\\u0007\\u0014" # for #7887 doAssert escapeJson("\10Foo🎃barÄ") == "\"\\nFoo🎃barÄ\"" - doAssert escapeJson("\0\7\20") == "\"\\u0000\\u0007\\u0020\"" # for #7887 + doAssert escapeJson("\0\7\20") == "\"\\u0000\\u0007\\u0014\"" # for #7887 # Test with extra data when not defined(js): @@ -1706,3 +1743,21 @@ when isMainModule: foo = js.to Foo doAssert(foo.b == "abc") + + # Generate constructors for range[T] types + block: + type + Q1 = range[0..10] + Q2 = range[0'i8..10'i8] + Q3 = range[0'u16..10'u16] + X = object + m1: Q1 + m2: Q2 + m3: Q3 + + let + obj = X(m1: 1, m2: 2'i8, m3: 3'u16) + jsonObj = %obj + desObj = to(jsonObj, type(obj)) + + doAssert(desObj == obj) |