}
		f.walk(n.List, context, visit)
		f.walk(n.Body, ctxStmt, visit)
	case *ast.SwitchStmt:
		f.walk(n.Init, ctxStmt, visit)
		f.walk(&n.Tag, ctxExpr, visit)
		f.walk(n.Body, ctxSwitch, visit)
	case *ast.TypeSwitchStmt:
		f.walk(n.Init, ctxStmt, visit)
		f.walk(n.Assign, ctxStmt, visit)
		f.walk(n.Body, ctxTypeSwitch, visit)
	case *ast.CommClause:
		f.walk(n.Comm, ctxStmt, visit)

	VSUMQG	V19, V20, V21           // e75340003e67
	VSUMB	V7, V8, V9              // e79780000064
	VSUMH	V22, V23, V24           // e78670001e64

	RET
	RET	foo(SB)

TEXT main·init(SB),DUPOK|NOSPLIT,$0 // TEXT main.init(SB), DUPOK|NOSPLIT, $0
	RET

TEXT main·main(SB),DUPOK|NOSPLIT,$0 // TEXT main.main(SB), DUPOK|NOSPLIT, $0
	BL      main·foo(SB)    // CALL main.foo(SB)

received from Go. For example:

	package main

	// typedef int (*intFunc) ();
	//
	// int
	// bridge_int_func(intFunc f)
	// {
	//		return f();
	// }
	//
	// int fortytwo()
	// {
	//	    return 42;
	// }
	import "C"
	import "fmt"

	func main() {
		f := C.intFunc(C.fortytwo)
		fmt.Println(int(C.bridge_int_func(f)))
		// Output: 42
	}

var testString string // test data for write tests
var testBytes []byte  // test data; same as testString but as a slice.

type negativeReader struct{}

func (r *negativeReader) Read([]byte) (int, error) { return -1, nil }

func init() {
	testBytes = make([]byte, N)
	for i := 0; i < N; i++ {
		testBytes[i] = 'a' + byte(i%26)
	}
	testString = string(testBytes)
}

// Verify that contents of buf match the string s.

	if size < 0 {
		return nil, errors.New("zip: size cannot be negative")
	}
	zr := new(Reader)
	var err error
	if err = zr.init(r, size); err != nil && err != ErrInsecurePath {
		return nil, err
	}
	return zr, err
}

func (r *Reader) init(rdr io.ReaderAt, size int64) error {
	end, baseOffset, err := readDirectoryEnd(rdr, size)
	if err != nil {
		return err
	}
	r.r = rdr

							sp = this._inst.exports.getsp() >>> 0; // see comment above
							storeValue(sp + 40, result);
							this.mem.setUint8(sp + 48, 1);
						} catch (err) {
							sp = this._inst.exports.getsp() >>> 0; // see comment above
							storeValue(sp + 40, err);
							this.mem.setUint8(sp + 48, 0);
						}
					},

					// func valueLength(v ref) int
					"syscall/js.valueLength": (sp) => {

//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	ADDD	F1, F2

//	LFADD freg ',' freg ',' freg
//	{
//		outcode(int($1), &$2, int($4.Reg), &$6);
//	}
	ADDD	F1, F2, F3

//	LFCMP freg ',' freg
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	CMPEQD	F1, F2


//
// WORD
//
	WORD	$1	// 00000001
	NOOP		// 00000000
	SYNC		// 0000000f

//
// NOP
//

				isFuncSym := strings.HasSuffix(test.input, "(SB)") &&
					// Ignore static symbols.
					!strings.Contains(test.input, "<>")

				wantName := ""
				if isFuncSym {
					// Strip $|* and (SB) and +Int.
					wantName = test.output[:len(test.output)-4]
					if strings.HasPrefix(wantName, "$") || strings.HasPrefix(wantName, "*") {
						wantName = wantName[1:]
					}
					if i := strings.Index(wantName, "+"); i >= 0 {

	}
}

func Test386EndToEnd(t *testing.T) {
	testEndToEnd(t, "386", "386")
}

func TestARMEndToEnd(t *testing.T) {
	defer func(old int) { buildcfg.GOARM.Version = old }(buildcfg.GOARM.Version)
	for _, goarm := range []int{5, 6, 7} {
		t.Logf("GOARM=%d", goarm)
		buildcfg.GOARM.Version = goarm
		testEndToEnd(t, "arm", "arm")
		if goarm == 6 {
			testEndToEnd(t, "arm", "armv6")
		}
	}

</p>

<h2 id="synchronization">Synchronization</h2>

<h3 id="init">Initialization</h3>

<p>
Program initialization runs in a single goroutine,
but that goroutine may create other goroutines,
which run concurrently.
</p>

<p class="rule">
If a package <code>p</code> imports package <code>q</code>, the completion of
<code>q</code>'s <code>init</code> functions happens before the start of any of <code>p</code>'s.
</p>