From 5946f67328dc8a31dd3f00a6c98a40383a3a52ab Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Sun, 27 Oct 2019 12:36:38 +0300
Subject: [PATCH] final switch => match

---
 vlib/crypto/aes/aes.v       |  7 ++++---
 vlib/crypto/sha512/sha512.v | 42 ++++++++++++++++++++-----------------
 vlib/encoding/csv/writer.v  |  8 ++++---
 3 files changed, 32 insertions(+), 25 deletions(-)

diff --git a/vlib/crypto/aes/aes.v b/vlib/crypto/aes/aes.v
index a9f521e014..277279f9ac 100644
--- a/vlib/crypto/aes/aes.v
+++ b/vlib/crypto/aes/aes.v
@@ -28,13 +28,14 @@ struct AesCipher {
 // AES-128, AES-192, or AES-256.
 pub fn new_cipher(key []byte) AesCipher {
 	k := key.len
-	switch k {
-	case 16, 24, 32:
+	match k {
+	16, 24, 32 {
 		// break
-	default:
+	} else {
 		panic('crypto.aes: invalid key size ' + k.str())
 		// return error('crypto.aes: invalid key size ' + k.str())
 	}
+	}
 	// for now use generic version
 	return new_cipher_generic(key)
 }
diff --git a/vlib/crypto/sha512/sha512.v b/vlib/crypto/sha512/sha512.v
index 659c3ac3ea..fd5afb1498 100644
--- a/vlib/crypto/sha512/sha512.v
+++ b/vlib/crypto/sha512/sha512.v
@@ -78,8 +78,8 @@ mut:
 fn (d mut Digest) reset() {
 	d.h = [u64(0)].repeat(8)
 	d.x = [byte(0)].repeat(Chunk)
-	switch d.function {
-	case crypto.Hash.sha384:
+	match d.function {
+	.sha384 {
 		d.h[0] = init0_384
 		d.h[1] = init1_384
 		d.h[2] = init2_384
@@ -88,7 +88,8 @@ fn (d mut Digest) reset() {
 		d.h[5] = init5_384
 		d.h[6] = init6_384
 		d.h[7] = init7_384
-	case crypto.Hash.sha512_224:
+	}
+	.sha512_224 {
 		d.h[0] = init0_224
 		d.h[1] = init1_224
 		d.h[2] = init2_224
@@ -97,7 +98,8 @@ fn (d mut Digest) reset() {
 		d.h[5] = init5_224
 		d.h[6] = init6_224
 		d.h[7] = init7_224
-	case crypto.Hash.sha512_256:
+	}
+	.sha512_256 {
 		d.h[0] = init0_256
 		d.h[1] = init1_256
 		d.h[2] = init2_256
@@ -106,7 +108,8 @@ fn (d mut Digest) reset() {
 		d.h[5] = init5_256
 		d.h[6] = init6_256
 		d.h[7] = init7_256
-	default:
+	}
+	else {
 		d.h[0] = init0
 		d.h[1] = init1
 		d.h[2] = init2
@@ -116,6 +119,7 @@ fn (d mut Digest) reset() {
 		d.h[6] = init6
 		d.h[7] = init7
 	}
+	}
 	d.nx = 0
 	d.len = 0
 }
@@ -184,24 +188,28 @@ fn (d mut Digest) sum(b_in []byte) []byte {
 	mut d0 := *d
 	hash := d0.checksum()
 	mut b_out := b_in.clone()
-	switch d0.function {
-	case crypto.Hash.sha384:
+	match d0.function {
+	.sha384 {
 		for b in hash[..size384] {
 			b_out << b
 		}
-	case crypto.Hash.sha512_224:
+	}
+	.sha512_224 {
 		for b in hash[..size224] {
 			b_out << b
 		}
-	case crypto.Hash.sha512_256:
+	}
+	.sha512_256 {
 		for b in hash[..size256] {
 			b_out << b
 		}
-	default:
+	}
+	else {
 		for b in hash {
 			b_out << b
 		}
 	}
+	}
 	return b_out
 }
 
@@ -288,15 +296,11 @@ fn block(dig mut Digest, p []byte) {
 }
 
 pub fn (d &Digest) size() int {
-	switch d.function {
-	case crypto.Hash.sha512_224:
-		return size224
-	case crypto.Hash.sha512_256:
-		return size256
-	case crypto.Hash.sha384:
-		return size384
-	default:
-		return size
+	match d.function {
+		.sha512_224 { return size224 }
+		.sha512_256 { return size256 }
+		.sha384     {	return size384 }
+		else        { return size    }
 	}
 }
 
diff --git a/vlib/encoding/csv/writer.v b/vlib/encoding/csv/writer.v
index cc22464440..e342de7345 100644
--- a/vlib/encoding/csv/writer.v
+++ b/vlib/encoding/csv/writer.v
@@ -51,12 +51,14 @@ pub fn (w mut Writer) write(record []string) ?bool {
 
 			if field.len > 0 {
 				z := field[0]
-				switch z {
-				case `"`:
+				match z {
+				`"` {
 					w.sb.write('""')
-				case `\r` || `\n`:
+				}
+				`\r`, `\n` {
 					w.sb.write(le)
 				}
+				}
 				field = field[1..]
 			}
 		}