diff options
| -rw-r--r-- | nix/buildTypedGo/default.nix | 33 | ||||
| -rw-r--r-- | nix/buildTypedGo/example/default.nix | 8 | ||||
| -rw-r--r-- | nix/buildTypedGo/example/main.go2 | 15 |
3 files changed, 56 insertions, 0 deletions
diff --git a/nix/buildTypedGo/default.nix b/nix/buildTypedGo/default.nix new file mode 100644 index 0000000000..1c44348492 --- /dev/null +++ b/nix/buildTypedGo/default.nix @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: Apache-2.0 +# +# A crude wrapper around //nix/buildGo that supports the Go 2 alpha. +# +# The way the alpha is implemented is via a transpiler from typed to +# untyped Go. +{ depot, pkgs, ... }: + +let + inherit (builtins) + stringLength + substring; + + inherit (depot.nix.buildGo) gpackage program; + + go2goext = file: substring 0 ((stringLength file) - 1) file; + go2go = file: pkgs.runCommandNoCC "${go2goext (toString file)}" {} '' + cp ${file} . + ${pkgs.go}/bin/go tool go2go translate *.go2 + mv *.go $out + ''; + +in rec { + program = { name, srcs, deps ? [], x_defs ? {} }: depot.nix.buildGo.program { + inherit name deps x_defs; + srcs = map go2go srcs; + }; + + package = { name, srcs, deps ? [], x_defs ? {}, sfiles ? [] }: depot.nix.buildGo.package { + inherit name deps x_defs sfiles; + srcs = map go2go srcs; + }; +} diff --git a/nix/buildTypedGo/example/default.nix b/nix/buildTypedGo/example/default.nix new file mode 100644 index 0000000000..5b6d4171f9 --- /dev/null +++ b/nix/buildTypedGo/example/default.nix @@ -0,0 +1,8 @@ +{ depot, ... }: + +depot.nix.buildTypedGo.program { + name = "example"; + srcs = [ + ./main.go2 + ]; +} diff --git a/nix/buildTypedGo/example/main.go2 b/nix/buildTypedGo/example/main.go2 new file mode 100644 index 0000000000..8986f57b94 --- /dev/null +++ b/nix/buildTypedGo/example/main.go2 @@ -0,0 +1,15 @@ +package main + +import ( + "fmt" +) + +func Print(type T)(s []T) { + for _, v := range s { + fmt.Print(v) + } +} + +func main() { + Print([]string{"Hello, ", "TVL\n"}) +} |