From f3a4ee2c80ba24320243bc23b5ea6d0042369e4f Mon Sep 17 00:00:00 2001
From: Komu Wairagu <komuw05@gmail.com>
Date: Fri, 1 Mar 2024 20:08:10 +0300
Subject: [PATCH] issues/70: Support older versions of Go (#71)

- Fixes: https://github.com/komuw/kama/issues/70
- Updates: https://github.com/komuw/kama/issues/72
---
 .github/workflows/ci.yml | 23 ++++++++++++++++++++++-
 CHANGELOG.md             |  2 ++
 dump.go                  |  2 +-
 go.mod                   |  7 +++++--
 go.sum                   |  7 ++-----
 packages.go              |  2 +-
 6 files changed, 33 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 77f5e0c..6159bea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,6 +63,28 @@ jobs:
               esac
           fi
 
+  check_go_compatibility:
+    name: check_go_compatibility
+    timeout-minutes: 7
+    strategy:
+      matrix:
+        go-version: [1.20.x, 1.21.x, 1.22.x]
+        platform: [ubuntu-22.04]
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Check out code into the Go module directory
+        uses: actions/checkout@v3
+
+      - name: tests and benchmarks
+        run: |
+          go test -count=1 -timeout 1m --exec=/bin/true ./...
+
+
   run_tests:
     name: run_tests
     timeout-minutes: 7
@@ -99,7 +121,6 @@ jobs:
           go tool cover -html=coverage.out -o coverage.html
           go tool cover -func=coverage.out
 
-
   run_analysis:
     name: run_analysis
     timeout-minutes: 5
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3183e33..d3cd530 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 Most recent version is listed first.  
 
+# v0.0.20
+- Support older Go versions: https://github.com/komuw/kama/pull/71
 
 # v0.0.19
 - Update docs: https://github.com/komuw/kama/commit/3dfdef76fbdd55a8ebed2d01dfb1cbb7c1cf2fc2
diff --git a/dump.go b/dump.go
index a2f72ae..c756e34 100644
--- a/dump.go
+++ b/dump.go
@@ -2,9 +2,9 @@ package kama
 
 import (
 	"fmt"
+	"golang.org/x/exp/slices"
 	"math"
 	"reflect"
-	"slices"
 	"sort"
 	"strings"
 	"unicode"
diff --git a/go.mod b/go.mod
index 00b9a21..2768c71 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,11 @@
 module github.com/komuw/kama
 
-go 1.22
+go 1.20
 
-require golang.org/x/tools v0.18.0
+require (
+	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225
+	golang.org/x/tools v0.18.0
+)
 
 require (
 	github.com/google/go-cmp v0.6.0 // indirect
diff --git a/go.sum b/go.sum
index 2eb779c..dacbf6d 100644
--- a/go.sum
+++ b/go.sum
@@ -1,22 +1,19 @@
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
-github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 go.akshayshah.org/attest v1.0.2 h1:qOv9PXCG2mwnph3g0I3yZj0rLAwLyUITs8nhxP+wS44=
 go.akshayshah.org/attest v1.0.2/go.mod h1:PnWzcW5j9dkyGwTlBmUsYpPnHG0AUPrs1RQ+HrldWO0=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
+golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 h1:LfspQV/FYTatPTr/3HzIcmiUFH7PGP+OQ6mgDYo3yuQ=
+golang.org/x/exp v0.0.0-20240222234643-814bf88cf225/go.mod h1:CxmFvTBINI24O/j8iY7H1xHzx2i4OsyguNBmN/uPtqc=
 golang.org/x/mod v0.15.0 h1:SernR4v+D55NyBH2QiEQrlBAnj1ECL6AGrA5+dPaMY8=
 golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/sync v0.6.0 h1:5BMeUDZ7vkXGfEr1x9B4bRcTH4lpkTkpdh0T/J+qjbQ=
-golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/tools v0.18.0 h1:k8NLag8AGHnn+PHbl7g43CtqZAwG60vZkLqgyZgIHgQ=
 golang.org/x/tools v0.18.0/go.mod h1:GL7B4CwcLLeo59yx/9UWWuNOW1n3VZ4f5axWfML7Lcg=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/packages.go b/packages.go
index 95b8f12..ec1964b 100644
--- a/packages.go
+++ b/packages.go
@@ -3,7 +3,7 @@ package kama
 import (
 	"fmt"
 	"go/types"
-	"slices"
+	"golang.org/x/exp/slices"
 	"strings"
 
 	"golang.org/x/tools/go/packages"