L'utilisation d'`async` et `await` est relativement nouvelle dans ce langage.

Mais cela rend la programmation asynchrone bien plus simple.

Cette même syntaxe (ou presque) était aussi incluse dans les versions modernes de Javascript (dans les versions navigateur et NodeJS).

Mais avant ça, gérer du code asynchrone était bien plus complexe et difficile.

			if p.sawCode {
				p.errorf("misplaced //go:build comment")
			}
			continue
		}
		if tok != '\n' {
			p.sawCode = true
		}
		if tok == '#' {
			// A leftover wisp of a #include/#define/etc,
			// to let us know that p.sawCode should be true now.
			// Otherwise ignored.
			continue
		}
		return tok
	}
}

// line consumes a single assembly line from p.lex of the form
//

// This input was created by taking the instruction productions in
// the old assembler's (7a's) grammar and hand-writing complete
// instructions for each rule, to guarantee we cover the same space.

#include "../../../../../runtime/textflag.h"

TEXT	foo(SB), DUPOK|NOSPLIT, $-8

// arithmetic operations
	ADDW	$1, R2, R3
	ADDW	R1, R2, R3
	ADDW	R1, ZR, R3
	ADD	$1, R2, R3
	ADD	R1, R2, R3
	ADD	R1, ZR, R3

// Code generated by avx512test. DO NOT EDIT.

#include "../../../../../../runtime/textflag.h"

TEXT asmtest_avx512_vbmi2(SB), NOSPLIT, $0
	VPCOMPRESSB X7, K1, X15                            // 62d27d0963ff
	VPCOMPRESSB X13, K1, X15                           // 62527d0963ef
	VPCOMPRESSB X8, K1, X15                            // 62527d0963c7
	VPCOMPRESSB X7, K1, X28                            // 62927d0963fc

// Copyright 2019 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.

#include "../../../../../runtime/textflag.h"

TEXT asmtest(SB),DUPOK|NOSPLIT,$0
start:
	//
	// Unprivileged ISA
	//

	// 2.4: Integer Computational Instructions

	ADDI	$2047, X5				// 9382f27f
	ADDI	$-2048, X5				// 93820280
	ADDI	$2048, X5				// 9382024093820240

		putOpts.ServerSideEncryption = encrypt.NewSSE()
	}

	if crypto.S3KMS.IsEncrypted(objInfo.UserDefined) {
		// If KMS key ID replication is enabled (as by default)
		// we include the object's KMS key ID. In any case, we
		// always set the SSE-KMS header. If no KMS key ID is
		// specified, MinIO is supposed to use whatever default
		// config applies on the site or bucket.
		var keyID string

// This input was created by taking the instruction productions in
// the old assembler's (5a's) grammar and hand-writing complete
// instructions for each rule, to guarantee we cover the same space.

#include "../../../../../runtime/textflag.h"

TEXT	foo(SB), DUPOK|NOSPLIT, $0

// ADD
//
//	LTYPE1 cond imsr ',' spreg ',' reg
//	{
//		outcode($1, $2, &$3, $5, &$7);
//	}
// Cover some operand space here too.

		return errFileAccessDenied
	}

	// Check each path segment length is > 255 on all Unix
	// platforms, look for this value as NAME_MAX in
	// /usr/include/linux/limits.h
	var count int64
	for _, p := range pathName {
		switch p {
		case '/':
			count = 0 // Reset
		case '\\':
			if runtime.GOOS == globalWindowsOSName {
				count = 0
			}
		default:

// Code generated by avx512test. DO NOT EDIT.

#include "../../../../../../runtime/textflag.h"

TEXT asmtest_avx512bw(SB), NOSPLIT, $0
	KADDD K4, K7, K5                                   // c4e1c54aec
	KADDD K6, K7, K5                                   // c4e1c54aee
	KADDD K4, K6, K5                                   // c4e1cd4aec
	KADDD K6, K6, K5                                   // c4e1cd4aee
	KADDD K4, K7, K4                                   // c4e1c54ae4

// Code generated by avx512test. DO NOT EDIT.

#include "../../../../../../runtime/textflag.h"

TEXT asmtest_avx512dq(SB), NOSPLIT, $0
	KADDB K3, K1, K6                                   // c5f54af3
	KADDB K1, K1, K6                                   // c5f54af1
	KADDB K3, K5, K6                                   // c5d54af3
	KADDB K1, K5, K6                                   // c5d54af1
	KADDB K3, K1, K5                                   // c5f54aeb