if tok != '\n' {
		in.Error("syntax error in #undef for macro:", name)
	}
	delete(in.macros, name)
}

func (in *Input) Push(r TokenReader) {
	if len(in.tr) > 100 {
		in.Error("input recursion")
	}
	in.Stack.Push(r)
}

func (in *Input) Close() {

    static final NonPublicConstantIgnored INSTANCE = new NonPublicConstantIgnored();

    private NonPublicConstantIgnored() {}
  }

  public static class NonStaticFieldIgnored {
    // This should cause infinite recursion. But it shouldn't be used anyway.
    public final NonStaticFieldIgnored instance = new NonStaticFieldIgnored();

    private NonStaticFieldIgnored() {}
  }

	ast.Inspect(n, func(node ast.Node) bool {
		if node == n { // push n
			return true // recur
		}
		if node != nil { // push child
			children = append(children, node)
		}
		return false // no recursion
	})

	// Then add fake Nodes for bare tokens.
	switch n := n.(type) {
	case *ast.ArrayType:
		children = append(children,
			tok(n.Lbrack, len("[")),
			tok(n.Elt.End(), len("]")))

		// We use this pattern:
		// 1 255 1 254 1 253 1 ... 1 2 1 255 2 254 2 253 2 252 2 ...
		// This gives approximately 2¹⁵ distinct LMS-substrings.
		// We need to repeat at least one substring, though,
		// or else the recursion can be bypassed entirely.
		x := make([]byte, 100000, 100001)
		lo := byte(1)
		hi := byte(255)
		for i := range x {
			if i%2 == 0 {
				x[i] = lo
			} else {
				x[i] = hi
				hi--

details.

A LogValue method may return a Value that itself implements [LogValuer]. The [Value.Resolve]
method handles these cases carefully, avoiding infinite loops and unbounded recursion.
Handler authors and others may wish to use [Value.Resolve] instead of calling LogValue directly.

# Wrapping output methods

The logger functions use reflection over the call stack to find the file name

bool SetterForXlaAutoJitFlag(const string& value) {
  int32_t opt_level;
  // We need to use the mark_for_compilation_flags directly here instead of
  // going via GetMarkForCompilationPassFlags() to avoid infinite recursion. The
  // latter will try to setup and parse flags, which would bring us back to this
  // setter.
  if (absl::SimpleAtoi(value, &opt_level)) {
    mark_for_compilation_flags->xla_auto_jit_flag

    static final NonPublicConstantIgnored INSTANCE = new NonPublicConstantIgnored();

    private NonPublicConstantIgnored() {}
  }

  public static class NonStaticFieldIgnored {
    // This should cause infinite recursion. But it shouldn't be used anyway.
    public final NonStaticFieldIgnored instance = new NonStaticFieldIgnored();

    private NonStaticFieldIgnored() {}
  }

	reordered bool
	// goodArgNum records whether the most recent reordering directive was valid.
	goodArgNum bool
	// panicking is set by catchPanic to avoid infinite panic, recover, panic, ... recursion.
	panicking bool
	// erroring is set when printing an error string to guard against calling handleMethods.
	erroring bool
	// wrapErrs is set when the format string may contain a %w verb.
	wrapErrs bool

}

func areAdjacentOffsets(off1, off2, size int64) bool {
	return off1+size == off2 || off1 == off2+size
}

// check if value zeroes out upper 32-bit of 64-bit register.
// depth limits recursion depth. In AMD64.rules 3 is used as limit,
// because it catches same amount of cases as 4.
func zeroUpper32Bits(x *Value, depth int) bool {
	switch x.Op {

	t := stats.TotalAlloc
	f()
	runtime.ReadMemStats(&stats)
	return stats.TotalAlloc - t
}

// TestMulUnbalanced tests that multiplying numbers of different lengths
// does not cause deep recursion and in turn allocate too much memory.
// Test case for issue 3807.
func TestMulUnbalanced(t *testing.T) {
	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(1))
	x := rndNat(50000)
	y := rndNat(40)