"io"
	"os"
	"os/signal"
	"reflect"
	"regexp"
	"runtime/pprof"
	"strings"
	"sync"
	"time"
)

// Cover indicates whether coverage is enabled.
var Cover bool

// TestDeps is an implementation of the testing.testDeps interface,
// suitable for passing to [testing.MainStart].
type TestDeps struct{}

var matchPat string
var matchRe *regexp.Regexp

// As Level itself implements Leveler, clients typically supply
// a Level value wherever a Leveler is needed, such as in [HandlerOptions].
// Clients who need to vary the level dynamically can provide a more complex
// Leveler implementation such as *[LevelVar].
type Leveler interface {
	Level() Level

	}

and you call it like this in main.go:

	Infof(slog.Default(), "hello, %s", "world")

then slog will report the source file as mylog.go, not main.go.

A correct implementation of Infof will obtain the source location
(pc) and pass it to NewRecord.
The Infof function in the package-level example called "wrapping"
demonstrates how to do this.

# Working with Records

// Original source:
//	http://www.zorinaq.com/papers/md5-amd64.html
//	http://www.zorinaq.com/papers/md5-amd64.tar.bz2
//
// MD5 optimized for ppc64le using Go's assembler for
// ppc64le, based on md5block_amd64.s implementation by
// the Go authors.
//
// Author: Marc Bevand <bevand_m (at) epita.fr>
// Licence: I hereby disclaim the copyright on this code and place it
// in the public domain.

//go:build (ppc64 || ppc64le) && !purego

	fmtStringerType = reflect.TypeFor[fmt.Stringer]()
)

// indirectToStringerOrError returns the value, after dereferencing as many times
// as necessary to reach the base type (or nil) or an implementation of fmt.Stringer
// or error.
func indirectToStringerOrError(a any) any {
	if a == nil {
		return nil
	}
	v := reflect.ValueOf(a)

// license that can be found in the LICENSE file.

package x509

// RFC 1423 describes the encryption of PEM blocks. The algorithm used to
// generate a key from the password was derived by looking at the OpenSSL
// implementation.

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/des"
	"crypto/md5"
	"encoding/hex"
	"encoding/pem"
	"errors"
	"io"
	"strings"
)

type PEMCipher int

type InternalExample struct {
	Name      string
	F         func()
	Output    string
	Unordered bool
}

// RunExamples is an internal function but exported because it is cross-package;
// it is part of the implementation of the "go test" command.
func RunExamples(matchString func(pat, str string) (bool, error), examples []InternalExample) (ok bool) {
	_, ok = runExamples(matchString, examples)
	return ok
}

//
// Provided that T2 is no larger than T1 and that the two share an equivalent
// memory layout, this conversion allows reinterpreting data of one type as
// data of another type. An example is the implementation of
// math.Float64bits:
//
//	func Float64bits(f float64) uint64 {
//		return *(*uint64)(unsafe.Pointer(&f))
//	}
//
// (2) Conversion of a Pointer to a uintptr (but not back to Pointer).
//

		t.Fatal(err)
	}
	// The asan tests require support for the -asan option.
	if !platform.ASanSupported(goos, goarch) {
		t.Skipf("skipping on %s/%s; -asan option is not supported.", goos, goarch)
	}
	// The current implementation is only compatible with the ASan library from version
	// v7 to v9 (See the description in src/runtime/asan/asan.go). Therefore, using the
	// -asan option must use a compatible version of ASan library, which requires that

// license that can be found in the LICENSE file.

//go:build darwin || dragonfly || freebsd || netbsd || openbsd

package runtime

// Integrated network poller (kqueue-based implementation).

import (
	"internal/goarch"
	"internal/runtime/atomic"
	"unsafe"
)

var (
	kq             int32         = -1
	netpollWakeSig atomic.Uint32 // used to avoid duplicate calls of netpollBreak
)