"context"
	"fmt"
	"internal/txtar"
	"io"
	"io/fs"
	"os"
	"os/exec"
	"path/filepath"
	"regexp"
	"strings"
)

// A State encapsulates the current state of a running script engine,
// including the script environment and any running background commands.
type State struct {
	engine *Engine // the engine currently executing the script, if any

	ctx    context.Context
	cancel context.CancelFunc
	file   string

func Condition(summary string, eval func(*State) (bool, error)) Cond {
	return &funcCond{eval: eval, usage: CondUsage{Summary: summary}}
}

type funcCond struct {
	eval  func(*State) (bool, error)
	usage CondUsage
}

func (c *funcCond) Usage() *CondUsage { return &c.usage }

func (c *funcCond) Eval(s *State, suffix string) (bool, error) {
	if suffix != "" {
		return false, ErrUsage
	}

	}
	if sc.handler == nil {
		return nil, errors.New("script completed without setting handler")
	}
	return sc.handler, nil
}

// newState returns a new script.State for executing scripts in workDir.
func (s *Server) newState(ctx context.Context, workDir string) (*script.State, error) {
	ctx = &scriptCtx{
		Context: ctx,
		server:  s,
	}

	st, err := script.NewState(ctx, workDir, s.env)
	if err != nil {
		return nil, err

}
func (s *state) constNil(t *types.Type) *ssa.Value { return s.f.ConstNil(t) }
func (s *state) constEmptyString(t *types.Type) *ssa.Value {
	return s.f.ConstEmptyString(t)
}
func (s *state) constBool(c bool) *ssa.Value {
	return s.f.ConstBool(types.Types[types.TBOOL], c)
}
func (s *state) constInt8(t *types.Type, c int8) *ssa.Value {
	return s.f.ConstInt8(t, c)
}

	// SSAMarkMoves marks any MOVXconst ops that need to avoid clobbering flags.
	SSAMarkMoves func(*State, *ssa.Block)

	// SSAGenValue emits Prog(s) for the Value.
	SSAGenValue func(*State, *ssa.Value)

	// SSAGenBlock emits end-of-block Progs. SSAGenValue should be called
	// for all values in the block before SSAGenBlock.
	SSAGenBlock func(s *State, b, next *ssa.Block)

	// LoadRegResult emits instructions that loads register-assigned result

// Plain -> b2
//
// Algorithm introduction:
//  1. The start memory state of a block is InitMem, a Phi node of type mem or
//     an incoming memory value.
//  2. The start memory state of a block is consistent with the end memory state
//     of its parent nodes. If the start memory state of a block is a Phi value,
//     then the end memory state of its parent nodes is consistent with the

	}
	exepath := filepath.Join(subdir, prog+".exe")
	bargs := []string{"build", "-cover", "-o", exepath}
	bargs = append(bargs, flags...)
	gobuild(t, subdir, bargs)
	return exepath, subdir
}

type state struct {
	dir      string
	exedir1  string
	exedir2  string
	exedir3  string
	exepath1 string
	exepath2 string
	exepath3 string
	tool     string
	outdirs  [4]string
}

}

var jniFix = fix{
	name:     "jni",
	date:     "2017-12-04",
	f:        jnifix,
	desc:     `Fixes initializers of JNI's jobject and subtypes`,
	disabled: false,
}

// Old state:
//
//	type jobject *_jobject
//
// New state:
//
//	type jobject uintptr
//
// and similar for subtypes of jobject.
// This fix finds nils initializing these types and replaces the nils with 0s.
func jnifix(f *ast.File) bool {

					state = ambigSel
				case indirect:
					state = ptrRecv
				default:
					state = notFound
					obj, _, _ = lookupFieldOrMethodImpl(V, false, m.pkg, m.name, true /* fold case */)
					f, _ = obj.(*Func)
					if f != nil {
						state = wrongName
						if f.name == m.name {
							// If the names are equal, f must be unexported
							// (otherwise the package wouldn't matter).
							state = unexported

	n.setState(complete)
	return n
}

// state atomically accesses the current state of the receiver.
func (n *Named) state() namedState {
	return namedState(atomic.LoadUint32(&n.state_))
}

// setState atomically stores the given state for n.
// Must only be called while holding n.mu.
func (n *Named) setState(state namedState) {
	atomic.StoreUint32(&n.state_, uint32(state))
}