Export string parsing shortcut "u256"

src/int_public.nim

@@ -10,17 +10,6 @@
 import ./private/datatypes, macros
 export StInt, IntImpl, intImpl # TODO remove the need to export intImpl and this macro
 
-type
-  Int128* = Stint[128]
-  Int256* = Stint[256]
-
-template make_conv(conv_name: untyped, size: int): untyped =
-  func `convname`*(n: SomeInteger): Stint[size] {.inline.}=
-    n.stint(size)
-
-make_conv(i128, 128)
-make_conv(i256, 256)
-
 template make_unary(op, ResultTy): untyped =
   func `op`*(x: Stint): ResultTy {.inline.} =
     when ResultTy is Stint:

src/stint.nim

@@ -9,3 +9,27 @@
 
 import  ./uint_public, ./int_public, ./io
 export  uint_public, int_public, io
+
+type
+  Int128* = Stint[128]
+  Int256* = Stint[256]
+  UInt128* = StUint[128]
+  UInt256* = StUint[256]
+
+template make_conv(conv_name: untyped, size: int): untyped =
+  func `convname`*(n: SomeInteger): StUint[size] {.inline.}=
+    n.stuint(size)
+  func `convname`*(input: string): StUint[size] {.inline.}=
+    parse(Stuint[size], input)
+
+make_conv(u128, 128)
+make_conv(u256, 256)
+
+template make_conv(conv_name: untyped, size: int): untyped =
+  func `convname`*(n: SomeInteger): Stint[size] {.inline.}=
+    n.stint(size)
+  func `convname`*(input: string): Stint[size] {.inline.}=
+    parse(Stint[size], input)
+
+make_conv(i128, 128)
+make_conv(i256, 256)

src/uint_public.nim

@@ -10,17 +10,6 @@
 import ./private/datatypes, macros
 export StUint, UintImpl, uintImpl # TODO remove the need to export UintImpl and this macro
 
-type
-  UInt128* = StUint[128]
-  UInt256* = StUint[256]
-
-template make_conv(conv_name: untyped, size: int): untyped =
-  func `convname`*(n: SomeInteger): StUint[size] {.inline.}=
-    n.stuint(size)
-
-make_conv(u128, 128)
-make_conv(u256, 256)
-
 template make_unary(op, ResultTy): untyped =
   func `op`*(x: StUint): ResultTy {.inline.} =
     when ResultTy is StUint: