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7d6cbf290a
* 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.
99 lines
1.9 KiB
Nim
99 lines
1.9 KiB
Nim
discard """
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output: '''
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Future is no longer empty, 42
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'''
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"""
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import threadpool
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proc foo: string = "Dog"
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var x: FlowVar[string] = spawn foo()
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assert(^x == "Dog")
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block:
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type
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Box = object
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case empty: bool
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of false:
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contents: string
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else:
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discard
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var obj = Box(empty: false, contents: "Hello")
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assert obj.contents == "Hello"
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var obj2 = Box(empty: true)
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doAssertRaises(FieldDefect):
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echo(obj2.contents)
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import json
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assert parseJson("null").kind == JNull
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assert parseJson("true").kind == JBool
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assert parseJson("42").kind == JInt
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assert parseJson("3.14").kind == JFloat
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assert parseJson("\"Hi\"").kind == JString
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assert parseJson("""{ "key": "value" }""").kind == JObject
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assert parseJson("[1, 2, 3, 4]").kind == JArray
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import json
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let data = """
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{"username": "Dominik"}
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"""
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let obj = parseJson(data)
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assert obj.kind == JObject
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assert obj["username"].kind == JString
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assert obj["username"].str == "Dominik"
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block:
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proc count10(): int =
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for i in 0 ..< 10:
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result.inc
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assert count10() == 10
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type
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Point = tuple[x, y: int]
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var point = (5, 10)
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var point2 = (x: 5, y: 10)
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type
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Human = object
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name: string
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age: int
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var jeff = Human(name: "Jeff", age: 23)
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var amy = Human(name: "Amy", age: 20)
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import asyncdispatch
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var future = newFuture[int]()
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doAssert(not future.finished)
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future.callback =
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proc (future: Future[int]) =
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echo("Future is no longer empty, ", future.read)
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future.complete(42)
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import asyncdispatch, asyncfile
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when false:
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var file = openAsync("")
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let dataFut = file.readAll()
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dataFut.callback =
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proc (future: Future[string]) =
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echo(future.read())
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asyncdispatch.runForever()
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import asyncdispatch, asyncfile, os
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proc readFiles() {.async.} =
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# --- Changed to getTempDir here.
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var file = openAsync(getTempDir() / "test.txt", fmReadWrite)
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let data = await file.readAll()
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echo(data)
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await file.write("Hello!\n")
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waitFor readFiles()
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