all: drop support for Go 1.16 and Go 1.17

testdata/go1.17.go

@@ -1,34 +0,0 @@
-package main
-
-// Test new language features introduced in Go 1.17:
-// https://tip.golang.org/doc/go1.17#language
-// Once this becomes the minimum Go version of TinyGo, these tests should be
-// merged with the regular slice tests.
-
-import "unsafe"
-
-func main() {
-	// Test conversion from array to slice.
-	slice1 := []int{1, 2, 3, 4}
-	arr1 := (*[4]int)(slice1)
-	arr1[1] = -2
-	arr1[2] = 20
-	println("slice to array pointer:", arr1[0], arr1[1], arr1[2], arr1[3])
-
-	// Test unsafe.Add.
-	arr2 := [...]int{1, 2, 3, 4}
-	*(*int)(unsafe.Add(unsafe.Pointer(&arr2[0]), unsafe.Sizeof(int(1))*1)) = 5
-	*addInt(&arr2[0], 2) = 8
-	println("unsafe.Add array:", arr2[0], arr2[1], arr2[2], arr2[3])
-
-	// Test unsafe.Slice.
-	arr3 := [...]int{1, 2, 3, 4}
-	slice3 := unsafe.Slice(&arr3[1], 3)
-	slice3[0] = 9
-	slice3[1] = 15
-	println("unsafe.Slice array:", len(slice3), cap(slice3), slice3[0], slice3[1], slice3[2])
-}
-
-func addInt(ptr *int, index uintptr) *int {
-	return (*int)(unsafe.Add(unsafe.Pointer(ptr), unsafe.Sizeof(int(1))*index))
-}

testdata/go1.17.txt

@@ -1,3 +0,0 @@
-slice to array pointer: 1 -2 20 4
-unsafe.Add array: 1 5 8 4
-unsafe.Slice array: 3 3 9 15 4

testdata/slice.go

@@ -1,5 +1,7 @@
 package main
 
+import "unsafe"
+
 type MySlice [32]byte
 
 type myUint8 uint8
@@ -130,6 +132,26 @@ func main() {
 	}
 	println()
 
+	// Test conversion from array to slice.
+	slice1 := []int{1, 2, 3, 4}
+	arr1 := (*[4]int)(slice1)
+	arr1[1] = -2
+	arr1[2] = 20
+	println("slice to array pointer:", arr1[0], arr1[1], arr1[2], arr1[3])
+
+	// Test unsafe.Add.
+	arr2 := [...]int{1, 2, 3, 4}
+	*(*int)(unsafe.Add(unsafe.Pointer(&arr2[0]), unsafe.Sizeof(int(1))*1)) = 5
+	*addInt(&arr2[0], 2) = 8
+	println("unsafe.Add array:", arr2[0], arr2[1], arr2[2], arr2[3])
+
+	// Test unsafe.Slice.
+	arr3 := [...]int{1, 2, 3, 4}
+	slice3 := unsafe.Slice(&arr3[1], 3)
+	slice3[0] = 9
+	slice3[1] = 15
+	println("unsafe.Slice array:", len(slice3), cap(slice3), slice3[0], slice3[1], slice3[2])
+
 	// Verify the fix in https://github.com/tinygo-org/tinygo/pull/119
 	var unnamed [32]byte
 	var named MySlice
@@ -177,3 +199,7 @@ func makeUint32(x uint32) uint32    { return x }
 func makeUint64(x uint64) uint64    { return x }
 func makeUintptr(x uintptr) uintptr { return x }
 func makeMyUint8(x myUint8) myUint8 { return x }
+
+func addInt(ptr *int, index uintptr) *int {
+	return (*int)(unsafe.Add(unsafe.Pointer(ptr), unsafe.Sizeof(int(1))*index))
+}

testdata/slice.txt

@@ -13,3 +13,6 @@ grow: len=7 cap=8 data: 42 -1 -2 1 2 4 5
 grow: len=7 cap=8 data: 42 -1 -2 1 2 4 5
 grow: len=14 cap=16 data: 42 -1 -2 1 2 4 5 42 -1 -2 1 2 4 5
 bytes: len=6 cap=6 data: 1 2 3 102 111 111
+slice to array pointer: 1 -2 20 4
+unsafe.Add array: 1 5 8 4
+unsafe.Slice array: 3 3 9 15 4

testdata/testing.go

@@ -55,6 +55,8 @@ var tests = []testing.InternalTest{
 
 var benchmarks = []testing.InternalBenchmark{}
 
+var fuzzes = []testing.InternalFuzzTarget{}
+
 var examples = []testing.InternalExample{}
 
 // A fake regexp matcher.
@@ -73,7 +75,7 @@ func fakeMatchString(pat, str string) (bool, error) {
 func main() {
 	testing.Init()
 	flag.Set("test.run", ".*/B")
-	m := testing.MainStart(matchStringOnly(fakeMatchString /*regexp.MatchString*/), tests, benchmarks, examples)
+	m := testing.MainStart(matchStringOnly(fakeMatchString /*regexp.MatchString*/), tests, benchmarks, fuzzes, examples)
 
 	exitcode := m.Run()
 	if exitcode != 0 {

testdata/testing_go118.go

@@ -1,100 +0,0 @@
-package main
-
-// TODO: also test the verbose version.
-
-import (
-	"errors"
-	"flag"
-	"io"
-	"strings"
-	"testing"
-)
-
-func TestFoo(t *testing.T) {
-	t.Log("log Foo.a")
-	t.Log("log Foo.b")
-}
-
-func TestBar(t *testing.T) {
-	t.Log("log Bar")
-	t.Log("log g\nh\ni\n")
-	t.Run("Bar1", func(t *testing.T) {})
-	t.Run("Bar2", func(t *testing.T) {
-		t.Log("log Bar2\na\nb\nc")
-		t.Error("failed")
-		t.Log("after failed")
-	})
-	t.Run("Bar3", func(t *testing.T) {})
-	t.Log("log Bar end")
-}
-
-func TestAllLowercase(t *testing.T) {
-	names := []string {
-		"alpha",
-		"BETA",
-		"gamma",
-		"BELTA",
-	}
-
-	for _, name := range names {
-		t.Run(name, func(t *testing.T) {
-			if 'a' <= name[0] && name[0] <= 'a' {
-				t.Logf("expected lowercase name, and got one, so I'm happy")
-			} else {
-				t.Errorf("expected lowercase name, got %s", name)
-			}
-		})
-	}
-}
-
-var tests = []testing.InternalTest{
-	{"TestFoo", TestFoo},
-	{"TestBar", TestBar},
-	{"TestAllLowercase", TestAllLowercase},
-}
-
-var benchmarks = []testing.InternalBenchmark{}
-
-var fuzzes = []testing.InternalFuzzTarget{}
-
-var examples = []testing.InternalExample{}
-
-// A fake regexp matcher.
-// Inflexible, but saves 50KB of flash and 50KB of RAM per -size full,
-// and lets tests pass on cortex-m.
-// Must match the one in src/testing/match.go that is substituted on bare-metal platforms,
-// or "make test" will fail there.
-func fakeMatchString(pat, str string) (bool, error) {
-	if pat == ".*" {
-		return true, nil
-	}
-	matched := strings.Contains(str, pat)
-	return matched, nil
-}
-
-func main() {
-	testing.Init()
-	flag.Set("test.run", ".*/B")
-	m := testing.MainStart(matchStringOnly(fakeMatchString /*regexp.MatchString*/), tests, benchmarks, fuzzes, examples)
-
-	exitcode := m.Run()
-	if exitcode != 0 {
-		println("exitcode:", exitcode)
-	}
-}
-
-var errMain = errors.New("testing: unexpected use of func Main")
-
-// matchStringOnly is part of upstream, and is used below to provide a dummy deps to pass to MainStart
-// so it can be run with go (tested with go 1.16) to provide a baseline for the regression test.
-// See c56cc9b3b57276.  Unfortunately, testdeps is internal, so we can't just use &testdeps.TestDeps{}.
-type matchStringOnly func(pat, str string) (bool, error)
-
-func (f matchStringOnly) MatchString(pat, str string) (bool, error)   { return f(pat, str) }
-func (f matchStringOnly) StartCPUProfile(w io.Writer) error           { return errMain }
-func (f matchStringOnly) StopCPUProfile()                             {}
-func (f matchStringOnly) WriteProfileTo(string, io.Writer, int) error { return errMain }
-func (f matchStringOnly) ImportPath() string                          { return "" }
-func (f matchStringOnly) StartTestLog(io.Writer)                      {}
-func (f matchStringOnly) StopTestLog() error                          { return errMain }
-func (f matchStringOnly) SetPanicOnExit0(bool)                        {}

testdata/testing_go118.txt

@@ -1,21 +0,0 @@
---- FAIL: TestBar (0.00s)
-    log Bar
-    log g
-        h
-        i
-        
-    --- FAIL: TestBar/Bar2 (0.00s)
-        log Bar2
-            a
-            b
-            c
-        failed
-        after failed
-    log Bar end
---- FAIL: TestAllLowercase (0.00s)
-    --- FAIL: TestAllLowercase/BETA (0.00s)
-        expected lowercase name, got BETA
-    --- FAIL: TestAllLowercase/BELTA (0.00s)
-        expected lowercase name, got BELTA
-FAIL
-exitcode: 1