Update repo after transition from personal account (#3)

.github/dependabot.yml

@@ -0,0 +1,18 @@
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    commit-message:
+      prefix: "deps:"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "sunday"
+      time: "09:00"
+  - package-ecosystem: "github-actions"
+    commit-message:
+      prefix: "ci:"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "sunday"
+      time: "09:00"

.github/workflows/build.yml

@@ -0,0 +1,34 @@
+name: build
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: 'stable'
+
+    - name: Go Format
+      run: gofmt -s -w . && git diff --exit-code
+
+    - name: Go Tidy
+      run: go mod tidy && git diff --exit-code
+
+    - name: Go Mod
+      run: go mod download
+
+    - name: Build
+      run: go build ./...
+
+    - name: Test
+      run: go test -v -race -shuffle=on ./...

go.mod

@@ -1,10 +1,9 @@
-module github.com/quasilyte/minformat
+module github.com/go-toolsmith/minformat
 
 go 1.15
 
 require (
-	github.com/go-toolsmith/astcopy v1.0.0
-	github.com/go-toolsmith/astequal v1.0.1 // indirect
-	github.com/go-toolsmith/strparse v1.0.0
-	github.com/google/go-cmp v0.5.6
+	github.com/go-toolsmith/astequal v1.1.0 // indirect
+	github.com/go-toolsmith/strparse v1.1.0
+	github.com/google/go-cmp v0.6.0
 )

go.sum

@@ -1,11 +1,11 @@
-github.com/go-toolsmith/astcopy v1.0.0 h1:OMgl1b1MEpjFQ1m5ztEO06rz5CUd3oBv9RF7+DyvdG8=
-github.com/go-toolsmith/astcopy v1.0.0/go.mod h1:vrgyG+5Bxrnz4MZWPF+pI4R8h3qKRjjyvV/DSez4WVQ=
-github.com/go-toolsmith/astequal v1.0.0/go.mod h1:H+xSiq0+LtiDC11+h1G32h7Of5O3CYFJ99GVbS5lDKY=
-github.com/go-toolsmith/astequal v1.0.1 h1:JbSszi42Jiqu36Gnf363HWS9MTEAz67vTQLponh3Moc=
-github.com/go-toolsmith/astequal v1.0.1/go.mod h1:4oGA3EZXTVItV/ipGiOx7NWkY5veFfcsOJVS2YxltLw=
-github.com/go-toolsmith/strparse v1.0.0 h1:Vcw78DnpCAKlM20kSbAyO4mPfJn/lyYA4BJUDxe2Jb4=
+github.com/go-toolsmith/astequal v1.0.3/go.mod h1:9Ai4UglvtR+4up+bAD4+hCj7iTo4m/OXVTSLnCyTAx4=
+github.com/go-toolsmith/astequal v1.1.0 h1:kHKm1AWqClYn15R0K1KKE4RG614D46n+nqUQ06E1dTw=
+github.com/go-toolsmith/astequal v1.1.0/go.mod h1:sedf7VIdCL22LD8qIvv7Nn9MuWJruQA/ysswh64lffQ=
 github.com/go-toolsmith/strparse v1.0.0/go.mod h1:YI2nUKP9YGZnL/L1/DLFBfixrcjslWct4wyljWhSRy8=
-github.com/google/go-cmp v0.5.6 h1:BKbKCqvP6I+rmFHt06ZmyQtvB8xAkWdhFyr0ZUNZcxQ=
-github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+github.com/go-toolsmith/strparse v1.1.0 h1:GAioeZUK9TGxnLS+qfdqNbA4z0SSm5zVNtCQiyP2Bvw=
+github.com/go-toolsmith/strparse v1.1.0/go.mod h1:7ksGy58fsaQkGQlY8WVoBFNyEPMGuJin1rfoPS4lBSQ=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+golang.org/x/exp/typeparams v0.0.0-20220428152302-39d4317da171/go.mod h1:AbB0pIl9nAr9wVwH+Z2ZpaocVmF5I4GyWCDIsVjR0bk=
+golang.org/x/exp/typeparams v0.0.0-20230203172020-98cc5a0785f9 h1:6WHiuFL9FNjg8RljAaT7FNUuKDbvMqS1i5cr2OE2sLQ=
+golang.org/x/exp/typeparams v0.0.0-20230203172020-98cc5a0785f9/go.mod h1:AbB0pIl9nAr9wVwH+Z2ZpaocVmF5I4GyWCDIsVjR0bk=

go/minformat/minifier.go → minifier.go

@@ -150,7 +150,7 @@ func (m *minifier) printExpr(n ast.Expr) {
 		if n.Low != nil {
 			m.printExpr(n.Low)
 		}
-		m.out.WriteRune(':')
+		m.out.WriteByte(':')
 		if n.High != nil {
 			m.printExpr(n.High)
 		}
@@ -217,6 +217,9 @@ func (m *minifier) printExpr(n ast.Expr) {
 	case *ast.InterfaceType:
 		m.printInterfaceType(n)
 
+	case *ast.IndexListExpr:
+		m.printIndexListExpr(n)
+
 	default:
 		m.panicUnhandled("printExpr", n)
 	}
@@ -476,6 +479,11 @@ func (m *minifier) printGenDecl(n *ast.GenDecl) {
 			}
 		case *ast.TypeSpec:
 			m.out.WriteString(spec.Name.Name)
+			if spec.TypeParams != nil {
+				m.out.WriteString("[")
+				m.printFieldList(spec.TypeParams, ',')
+				m.out.WriteString("]")
+			}
 			if spec.Assign != token.NoPos {
 				m.out.WriteByte('=')
 			} else {
@@ -514,6 +522,12 @@ func (m *minifier) printBinaryExpr(n *ast.BinaryExpr) {
 		}
 	}
 
+	// Handle `x / Y` so we don't output it as `x/Y` (where Y is an expression).
+	// TODO(cristaloleg): handle only a case when we dereference Y: `x / *y`.
+	if n.Op == token.QUO {
+		spaceBeforeY = true
+	}
+
 	m.printExpr(n.X)
 	m.out.WriteString(n.Op.String())
 	if spaceBeforeY {
@@ -523,6 +537,11 @@ func (m *minifier) printBinaryExpr(n *ast.BinaryExpr) {
 }
 
 func (m *minifier) printFuncType(n *ast.FuncType) {
+	if n.TypeParams != nil {
+		m.out.WriteString("[")
+		m.printFieldList(n.TypeParams, ',')
+		m.out.WriteString("]")
+	}
 	m.out.WriteString("(")
 	m.printFieldList(n.Params, ',')
 	m.out.WriteString(")")
@@ -560,6 +579,20 @@ func (m *minifier) printInterfaceType(n *ast.InterfaceType) {
 	m.out.WriteByte('}')
 }
 
+func (m *minifier) printIndexListExpr(n *ast.IndexListExpr) {
+	m.printExpr(n.X)
+	m.out.WriteString("[")
+
+	for i, ind := range n.Indices {
+		if i > 0 {
+			m.out.WriteByte(',')
+		}
+		m.printExpr(ind)
+	}
+
+	m.out.WriteByte(']')
+}
+
 func (m *minifier) printFieldList(n *ast.FieldList, sep byte) {
 	for j, field := range n.List {
 		for j, ident := range field.Names {
@@ -588,3 +621,12 @@ func (m *minifier) panicUnhandled(fn string, n interface{}) {
 	}
 	panic(fmt.Sprintf("<?>: %s: unhandled %T", fn, n))
 }
+
+func leftmostExpr(n ast.Expr) ast.Expr {
+	switch n := n.(type) {
+	case *ast.BinaryExpr:
+		return leftmostExpr(n.X)
+	default:
+		return n
+	}
+}

go/minformat/minifier_test.go → minifier_test.go

@@ -256,7 +256,7 @@ func TestGoroot(t *testing.T) {
 		}
 		f, err := parser.ParseFile(fset, filename, fileContents, 0)
 		if err != nil {
-			return nil
+			return err
 		}
 		var minified bytes.Buffer
 		if err := Node(&minified, fset, f); err != nil {
@@ -265,7 +265,7 @@ func TestGoroot(t *testing.T) {
 		fset2 := token.NewFileSet()
 		f2, err := parser.ParseFile(fset2, filename, minified.Bytes(), 0)
 		if err != nil {
-			return fmt.Errorf("re-parse minified: %w", err)
+			return fmt.Errorf("re-parse minified: %w\nminified: %s", err, minified.String())
 		}
 		if diff := astDiff(f, f2); diff != "" {
 			return fmt.Errorf("minified code produced different AST:\n%s", diff)
@@ -284,6 +284,18 @@ func TestGoroot(t *testing.T) {
 		if !strings.HasSuffix(info.Name(), ".go") {
 			return nil
 		}
+		// Skip some testdata dirs where not all files can be parsed.
+		// TODO(cristaloleg): skip file when we cannot parse it with go/parser.
+		if strings.Contains(path, "src/cmd/compile/internal/syntax/testdata") ||
+			strings.Contains(path, "src/cmd/compile/internal/types2/testdata") ||
+			strings.Contains(path, "src/cmd/go/internal/modindex/testdata") ||
+			strings.Contains(path, "src/cmd/go/parser/testdata") ||
+			strings.Contains(path, "src/cmd/internal/modindex/testdata") ||
+			strings.Contains(path, "src/go/parser/testdata") ||
+			strings.Contains(path, "src/internal/types/testdata") ||
+			strings.Contains(path, "src/cmd/compile/internal/syntax/testdata/smoketest.go") {
+			return nil
+		}
 		if err := visitFile(path); err != nil {
 			return fmt.Errorf("%s: %w", path, err)
 		}