all: check formatting on CI

.circleci/config.yml

@@ -95,6 +95,7 @@ commands:
           paths:
             - ~/.cache/go-build
             - ~/.cache/tinygo
+      - run: make fmt-check
   build-linux:
     steps:
       - checkout

Makefile

@@ -92,9 +92,11 @@ endif
 clean:
 	@rm -rf build
 
+FMT_PATHS = ./*.go compiler interp ir loader src/device/arm src/examples src/machine src/os src/reflect src/runtime src/sync src/syscall
 fmt:
-	@go fmt . ./compiler ./interp ./loader ./ir ./src/device/arm ./src/examples/* ./src/machine ./src/os ./src/runtime ./src/sync ./src/syscall
-	@go fmt ./testdata/*.go
+	@gofmt -l -w $(FMT_PATHS)
+fmt-check:
+	@unformatted=$$(gofmt -l $(FMT_PATHS)); [ -z "$$unformatted" ] && exit 0; echo "Unformatted:"; for fn in $$unformatted; do echo "  $$fn"; done; exit 1
 
 test:
 	@go test -v .

loader/libclang.go

@@ -35,7 +35,7 @@ func (info *fileInfo) parseFragment(fragment string, cflags []string, posFilenam
 	index := C.clang_createIndex(0, 0)
 	defer C.clang_disposeIndex(index)
 
-	filenameC := C.CString(posFilename+"!cgo.c")
+	filenameC := C.CString(posFilename + "!cgo.c")
 	defer C.free(unsafe.Pointer(filenameC))
 
 	fragmentC := C.CString(fragment)

src/reflect/type.go

@@ -134,18 +134,18 @@ func (t Type) String() string {
 }
 
 func (t Type) Kind() Kind {
-	if t % 2 == 0 {
+	if t%2 == 0 {
 		// basic type
 		return Kind((t >> 1) % 32)
 	} else {
-		return Kind(t >> 1) % 8 + 19
+		return Kind(t>>1)%8 + 19
 	}
 }
 
 func (t Type) Elem() Type {
 	switch t.Kind() {
 	case Chan, Ptr, Slice:
-		if (t >> 4) % 2 != 0 {
+		if (t>>4)%2 != 0 {
 			panic("unimplemented: (reflect.Type).Elem() for named types")
 		}
 		return t >> 5

src/reflect/value.go

@@ -335,7 +335,7 @@ func (v Value) Index(i int) Value {
 			typecode: v.Type().Elem(),
 			indirect: true,
 		}
-		addr := uintptr(slice.Data) + elem.Type().Size() * uintptr(i) // pointer to new value
+		addr := uintptr(slice.Data) + elem.Type().Size()*uintptr(i) // pointer to new value
 		elem.value = unsafe.Pointer(addr)
 		return elem
 	case String:
@@ -348,7 +348,7 @@ func (v Value) Index(i int) Value {
 		}
 		return Value{
 			typecode: Uint8.basicType(),
-			value: unsafe.Pointer(uintptr(*(*uint8)(unsafe.Pointer(s.Data + uintptr(i))))),
+			value:    unsafe.Pointer(uintptr(*(*uint8)(unsafe.Pointer(s.Data + uintptr(i))))),
 		}
 	case Array:
 		panic("unimplemented: (reflect.Value).Index()")

src/runtime/internal/sys/zversion.go

@@ -1 +1,3 @@
-TheVersion = `go0.1.0`
+package sys
+
+const TheVersion = `go0.1.0`