blob: 3d4d7c9cbaa8f9a5e916a7a465a74f298fd4ffc5 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
{.used.}
import std/macros
template imp(x: untyped) = import x
macro tryImport(x: untyped, name: static string) =
let vs = ident(name & "Version")
quote do:
when not compiles(imp `x`):
static:
error("Cannot find submodule " & `name` &
". Please run `make submodule` to fetch the required submodules.")
import `x` as `vs`
macro checkVersion(xs: static string, major, minor, patch: int) =
let x = ident(xs & "Version")
quote do:
when `x`.Major < `major` or `x`.Minor < `minor` or `x`.Patch < `patch`:
var es = $`major` & "." & $`minor` & "." & $`patch`
var gs = $`x`.Major & "." & $`x`.Minor & "." & $`x`.Patch
error("Version of " & `xs` & " too low (expected " & es & ", got " &
gs & "). Please run `make submodule` to update.")
tryImport chagashi/version, "chagashi"
tryImport chame/version, "chame"
static:
checkVersion("chagashi", 0, 4, 2)
checkVersion("chame", 0, 14, 4)
|