func testSemaHandoff() bool {
	var sema, res uint32
	done := make(chan struct{})

	// We're testing that the current goroutine is able to yield its time slice
	// to another goroutine. Stop the current goroutine from migrating to
	// another CPU where it can win the race (and appear to have not yielded) by
	// keeping the CPUs slightly busy.
	var wg sync.WaitGroup
	for i := 0; i < GOMAXPROCS(-1); i++ {
		wg.Add(1)
		go func() {

package main

var gj int

func yield4x(yield func() bool) {
	_ = yield() && yield() && yield() && yield()
}

func yield4(yield func(int) bool) {
	_ = yield(1) && yield(2) && yield(3) && yield(4)
}

func yield3(yield func(int) bool) {
	_ = yield(1) && yield(2) && yield(3)
}

func yield2(yield func(int) bool) {
	_ = yield(1) && yield(2)
}

func testfunc0() {
	j := 0

			Fields: []schema.IndexOption{
				{Field: &schema.Field{Name: "FieldD"}},
				// Note: Duplicate Columns
				{Field: &schema.Field{Name: "FieldD"}},
			},
		},
		"uniq_field_e1_e2": {
			Name:  "uniq_field_e1_e2",
			Class: "UNIQUE",
			Fields: []schema.IndexOption{
				{Field: &schema.Field{Name: "FieldE1"}},
				{Field: &schema.Field{Name: "FieldE2"}},
			},
		},
		"idx_index_tests_field_f1": {

⚫️ 5️⃣📆 😋 🤚 `HTTPException` ⚖️ 🎏 🚪 📟, ⏮️ `yield`. ✋️ **⚫️ 🏆 🚫 👷**.

🚪 📟 🔗 ⏮️ `yield` 🛠️ *⏮️* 📨 📨, [⚠ 🐕‍🦺](../handling-errors.md#_4){.internal-link target=_blank} 🔜 ✔️ ⏪ 🏃. 📤 🕳 😽 ⚠ 🚮 👆 🔗 🚪 📟 (⏮️ `yield`).

, 🚥 👆 🤚 `HTTPException` ⏮️ `yield`, 🔢 (⚖️ 🙆 🛃) ⚠ 🐕‍🦺 👈 ✊ `HTTPException`Ⓜ & 📨 🇺🇸🔍 4️⃣0️⃣0️⃣ 📨 🏆 🚫 📤 ✊ 👈 ⚠ 🚫🔜.

👉 ⚫️❔ ✔ 🕳 ⚒ 🔗 (✅ 💽 🎉), 🖼, ⚙️ 🖥 📋.

  OpBuilder builder(&island.GetBody(), island.GetBody().begin());
  tf_executor::YieldOp yield = island.GetYield();
  if (yield.getNumOperands() == 0) {
    builder.create<TF::NoOp>(island.getLoc(), TypeRange{}, ValueRange{});
  } else if (yield.getNumOperands() == 1) {
    Value operand = yield.getOperand(0);
    auto identity = builder.create<TF::IdentityOp>(island.getLoc(),

      moveBlock(&tf_then_or_else_region.front(),
                &scf_then_or_else_region.front(), TypeRange(), rewriter);

      // Replace the current terminator (a `tf.Yield` op) with an `scf.yield`
      // op. The input of the `scf.yield` op is a list of results of `tf.Cast`
      // ops, each of which casts an operand of the current terminator to the
      // corresponding result type of the `tf.IfRegion` op.

    outlined_func.setNested();

    // We will "steal" the body of the island and replace it with a call to the
    // new function later.
    {
      YieldOp yield_op = island_op.GetYield();
      outlined_func.getBody().takeBody(island_op.getBody());

      // Replace the yield with a return
      OpBuilder replacer(yield_op);
      island_op.getBody().push_back(new Block);
      replacer.create<mlir::func::ReturnOp>(yield_op.getLoc(),

	if verbose {
		println("did", "%[3]s", "%[4]s", len(all))
	}
}
`

var mainCode = `

func main() {
	if verbose {
		println("main")
	}
	%s
}

func yield2(yield func(int)bool) { _ = yield(1) && yield(2) }
var slice2 = []int{1,2}

type output struct {
	ret int
	trace []any
}

func (o *output) log(x any) {
	o.trace = append(o.trace, x)
}

      island.getBody().front().begin(), body.getOperations(),
      copy_range.begin(), copy_range.end());
  builder.setInsertionPointToEnd(&island.getBody().front());
  builder.create<tf_executor::YieldOp>(loc, return_op.getOperands());
  for (auto item : llvm::enumerate(graph_op.getResults())) {
    return_op.setOperand(item.index(), item.value());
  }
}

std::unique_ptr<OperationPass<func::FuncOp>>

// expression that yields the *runtime._type value representing typ.
func kindRType(pos src.XPos, typ *types.Type, k types.Kind) ir.Node {
	base.AssertfAt(typ.Kind() == k, pos, "want %v type, have %v", k, typ)
	return TypePtrAt(pos, typ)
}

// mapRType asserts that typ is a map type, and returns an expression
// that yields the *runtime._type value representing typ.