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# Write data to streams.
import std/options
import std/sets
import std/streams
import std/tables
import types/blob
import types/formdata
import types/url
import types/opt
proc sread*(stream: Stream, n: var SomeNumber)
func slen*(n: SomeNumber): int
proc sread*[T](stream: Stream, s: var set[T])
func slen*[T](s: set[T]): int
proc sread*[T: enum](stream: Stream, x: var T)
func slen*[T: enum](x: T): int
proc sread*(stream: Stream, s: var string)
func slen*(s: string): int
proc sread*(stream: Stream, b: var bool)
func slen*(b: bool): int
proc sread*(stream: Stream, url: var URL)
func slen*(url: URL): int
proc sread*(stream: Stream, tup: var tuple)
func slen*(tup: tuple): int
proc sread*[I, T](stream: Stream, a: var array[I, T])
func slen*[I, T](a: array[I, T]): int
proc sread*(stream: Stream, s: var seq)
func slen*(s: seq): int
proc sread*[U, V](stream: Stream, t: var Table[U, V])
func slen*[U, V](t: Table[U, V]): int
proc sread*(stream: Stream, obj: var object)
func slen*(obj: object): int
proc sread*(stream: Stream, obj: var ref object)
func slen*(obj: ref object): int
proc sread*(stream: Stream, part: var FormDataEntry)
func slen*(part: FormDataEntry): int
proc sread*(stream: Stream, blob: var Blob)
func slen*(blob: Blob): int
proc sread*[T](stream: Stream, o: var Option[T])
func slen*[T](o: Option[T]): int
proc sread*[T, E](stream: Stream, o: var Result[T, E])
func slen*[T, E](o: Result[T, E]): int
proc sread*(stream: Stream, n: var SomeNumber) =
if stream.readData(addr n, sizeof(n)) < sizeof(n):
raise newException(EOFError, "eof")
func slen*(n: SomeNumber): int =
return sizeof(n)
proc sread*[T: enum](stream: Stream, x: var T) =
var i: int
stream.sread(i)
x = cast[T](i)
func slen*[T: enum](x: T): int =
return sizeof(int)
proc sread*[T](stream: Stream, s: var set[T]) =
var len: int
stream.sread(len)
for i in 0 ..< len:
var x: T
stream.sread(x)
s.incl(x)
func slen*[T](s: set[T]): int =
result = slen(s.card)
for x in s:
result += slen(x)
proc sread*(stream: Stream, s: var string) =
var len: int
stream.sread(len)
if len > 0:
s = newString(len)
prepareMutation(s)
if stream.readData(addr s[0], len) < len:
raise newException(EOFError, "eof")
else:
s = ""
func slen*(s: string): int =
slen(s.len) + s.len
proc sread*(stream: Stream, b: var bool) =
var n: uint8
stream.sread(n)
if n == 1u8:
b = true
else:
assert n == 0u8
b = false
func slen*(b: bool): int =
return sizeof(uint8)
proc sread*(stream: Stream, url: var URL) =
var s: string
stream.sread(s)
if s == "":
url = nil
else:
let x = newURL(s)
if x.isSome:
url = x.get
else:
url = nil
func slen*(url: URL): int =
if url == nil:
return slen("")
return slen(url.serialize())
proc sread*(stream: Stream, tup: var tuple) =
for f in tup.fields:
stream.sread(f)
func slen*(tup: tuple): int =
for f in tup.fields:
result += slen(f)
proc sread*[I, T](stream: Stream; a: var array[I, T]) =
for x in a.mitems:
stream.sread(x)
func slen*[I, T](a: array[I, T]): int =
for x in a:
result += slen(x)
proc sread*(stream: Stream, s: var seq) =
var len: int
stream.sread(len)
s.setLen(len)
for x in s.mitems:
stream.sread(x)
func slen*(s: seq): int =
result = slen(s.len)
for x in s:
result += slen(x)
proc sread*[U, V](stream: Stream, t: var Table[U, V]) =
var len: int
stream.sread(len)
for i in 0..<len:
var k: U
stream.sread(k)
var v: V
stream.sread(v)
t[k] = v
func slen*[U, V](t: Table[U, V]): int =
result = slen(t.len)
for k, v in t:
result += slen(k)
result += slen(v)
proc sread*(stream: Stream, obj: var object) =
for f in obj.fields:
stream.sread(f)
func slen*(obj: object): int =
for f in obj.fields:
result += slen(f)
proc sread*(stream: Stream, obj: var ref object) =
var n: bool
stream.sread(n)
if n:
new(obj)
stream.sread(obj[])
func slen*(obj: ref object): int =
result = slen(obj != nil)
if obj != nil:
result += slen(obj[])
proc sread*(stream: Stream, part: var FormDataEntry) =
var isstr: bool
stream.sread(isstr)
if isstr:
part = FormDataEntry(isstr: true)
else:
part = FormDataEntry(isstr: false)
stream.sread(part.name)
stream.sread(part.filename)
if part.isstr:
stream.sread(part.svalue)
else:
stream.sread(part.value)
func slen*(part: FormDataEntry): int =
result += slen(part.isstr)
result += slen(part.name)
result += slen(part.filename)
if part.isstr:
result += slen(part.svalue)
else:
result += slen(part.value)
proc sread*(stream: Stream, blob: var Blob) =
var isfile: bool
stream.sread(isfile)
if isfile:
var file = new WebFile
file.isfile = true
stream.sread(file.path)
blob = file
else:
blob = Blob()
stream.sread(blob.ctype)
stream.sread(blob.size)
let buffer = alloc(blob.size)
blob.buffer = buffer
blob.deallocFun = proc() = dealloc(buffer)
if blob.size > 0:
let n = stream.readData(blob.buffer, int(blob.size))
assert n == int(blob.size)
func slen*(blob: Blob): int =
result += slen(blob.isfile)
if blob.isfile:
result = slen(WebFile(blob).path)
else:
result += slen(blob.ctype)
result += slen(blob.size)
result += int(blob.size) #TODO ??
proc sread*[T](stream: Stream, o: var Option[T]) =
var x: bool
stream.sread(x)
if x:
var m: T
stream.sread(m)
o = some(m)
else:
o = none(T)
func slen*[T](o: Option[T]): int =
result = slen(o.isSome)
if o.isSome:
result += slen(o.get)
proc sread*[T, E](stream: Stream, o: var Result[T, E]) =
var x: bool
stream.sread(x)
if x:
when not (T is void):
var m: T
stream.sread(m)
o.ok(m)
else:
o.ok()
else:
when not (E is void):
var e: E
stream.sread(e)
o.err(e)
else:
o.err()
func slen*[T, E](o: Result[T, E]): int =
result = slen(o.isSome)
if o.isSome:
when not (T is void):
result += slen(o.get)
else:
when not (E is void):
result += slen(o.error)
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