// See https://csrc.nist.gov/groups/ST/toolkit/BCM/current_modes.html
// and NIST Special Publication 800-38A.
package cipher

// A Block represents an implementation of block cipher
// using a given key. It provides the capability to encrypt
// or decrypt individual blocks. The mode implementations
// extend that capability to streams of blocks.
type Block interface {
	// BlockSize returns the cipher's block size.
	BlockSize() int

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

// TODO(jba) deduce which functions wrap the log/slog functions, and use the
// fact mechanism to propagate this information, so we can provide diagnostics
// for user-supplied wrappers.

package slog

import (
	_ "embed"
	"fmt"
	"go/ast"
	"go/token"
	"go/types"

	"golang.org/x/tools/go/analysis"

	pcombineflag = flag.Bool("pcombine", false, "Combine profiles derived from distinct program executables")
	m := &mstate{
		mm: newMetaMerge(),
	}
	return m
}

// mstate encapsulates state and provides methods for implementing the
// merge operation. This type implements the CovDataVisitor interface,
// and is designed to be used in concert with the CovDataReader

// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package quoted provides string manipulation utilities.
package quoted

import (
	"flag"
	"fmt"
	"strings"
	"unicode"
)

func isSpaceByte(c byte) bool {
	return c == ' ' || c == '\t' || c == '\n' || c == '\r'
}

// Split splits s into a list of fields,

	Offset               uint32
	PointerToRelocations uint32
	PointerToLineNumbers uint32
	NumberOfRelocations  uint16
	NumberOfLineNumbers  uint16
	Characteristics      uint32
}

// Section provides access to PE COFF section.
type Section struct {
	SectionHeader
	Relocs []Reloc

	// Embed ReaderAt for ReadAt method.
	// Do not embed SectionReader directly
	// to avoid having Read and Seek.

)

// BUG(tmm1): On Windows, the Write method of syscall.RawConn
// does not integrate with the runtime's network poller. It cannot
// wait for the connection to become writeable, and does not respect
// deadlines. If the user-provided callback returns false, the Write
// method will fail immediately.

// BUG(mikio): On JS and Plan 9, the Control, Read and Write
// methods of syscall.RawConn are not implemented.

type rawConn struct {
	fd *netFD

// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package socktest provides utilities for socket testing.
package socktest

import (
	"fmt"
	"sync"
)

// A Switch represents a callpath point switch for socket system
// calls.
type Switch struct {
	once sync.Once

	fmu   sync.RWMutex
	fltab map[FilterType]Filter

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// TODO(austin): All of these tests are skipped if the debuglog build
// tag isn't provided. That means we basically never test debuglog.
// There are two potential ways around this:
//
// 1. Make these tests re-build the runtime test with the debuglog
// build tag and re-invoke themselves.
//

// 'verbosityLevel' controls the level of debugging trace messages
// (zero for off, higher for more output), 'flags' stores flags that
// indicate what to do if errors are detected, and 'matchpkg' is a
// caller-provided function that can be used to select specific
// packages by name (if nil, then all packages are included).