Use EncodingForwarder for GetBytes(char[], int, int, byte[], int)

dotnet · Jul 4, 2016 · 0889431 · 0889431
1 parent fa55fd7
commit 0889431
Show file tree

Hide file tree

Showing 7 changed files with 52 additions and 210 deletions.
diff --git a/src/mscorlib/src/System/Text/ASCIIEncoding.cs b/src/mscorlib/src/System/Text/ASCIIEncoding.cs
@@ -114,43 +114,10 @@ public override int GetBytes(String chars, int charIndex, int charCount,
         // parent method is safe
 
         [System.Security.SecuritySafeCritical]  // auto-generated
-        public override unsafe int GetBytes(char[] chars, int charIndex, int charCount,
+        public override int GetBytes(char[] chars, int charIndex, int charCount,
                                                byte[] bytes, int byteIndex)
         {
-            // Validate parameters
-            if (chars == null || bytes == null)
-                throw new ArgumentNullException((chars == null ? "chars" : "bytes"),
-                      Environment.GetResourceString("ArgumentNull_Array"));
-
-            if (charIndex < 0 || charCount < 0)
-                throw new ArgumentOutOfRangeException((charIndex<0 ? "charIndex" : "charCount"),
-                      Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
-
-            if (chars.Length - charIndex < charCount)
-                throw new ArgumentOutOfRangeException("chars",
-                      Environment.GetResourceString("ArgumentOutOfRange_IndexCountBuffer"));
-
-            if (byteIndex < 0 || byteIndex > bytes.Length)
-                throw new ArgumentOutOfRangeException("byteIndex",
-                     Environment.GetResourceString("ArgumentOutOfRange_Index"));
-            Contract.EndContractBlock();
-
-            // If nothing to encode return 0, avoid fixed problem
-            if (charCount == 0)
-                return 0;
-
-            // Just call pointer version
-            int byteCount = bytes.Length - byteIndex;
-
-            // Fixed doesn't like empty byte arrays
-            if (bytes.Length == 0)
-                bytes = new byte[1];
-
-            fixed (char* pChars = chars)
-                fixed (byte* pBytes = bytes)
-                    // Remember that byteCount is # to decode, not size of array.
-                    return GetBytes(pChars + charIndex, charCount,
-                                    pBytes + byteIndex, byteCount, null);
+            return EncodingForwarder.GetBytes(this, chars, charIndex, charCount, bytes, byteIndex);
         }
 
         // All of our public Encodings that don't use EncodingNLS must have this (including EncodingNLS)

diff --git a/src/mscorlib/src/System/Text/EncodingForwarder.cs b/src/mscorlib/src/System/Text/EncodingForwarder.cs
@@ -123,5 +123,45 @@ public unsafe static int GetBytes(Encoding encoding, string s, int charIndex, in
                 return encoding.GetBytes(pChars + charIndex, charCount, pBytes + byteIndex, byteCount, encoder: null);
             }
         }
+
+        public unsafe static int GetBytes(Encoding encoding, char[] chars, int charIndex, int charCount, byte[] bytes, int byteIndex)
+        {
+            Contract.Assert(encoding != null);
+            if (chars == null || bytes == null)
+            {
+                throw new ArgumentNullException(chars == null ? "chars" : "bytes", Environment.GetResourceString("ArgumentNull_Array"));
+            }
+            if (charIndex < 0 || charCount < 0)
+            {
+                throw new ArgumentOutOfRangeException(charIndex < 0 ? "charIndex" : "charCount", Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
+            }
+            if (chars.Length - charIndex < charCount)
+            {
+                throw new ArgumentOutOfRangeException("chars", Environment.GetResourceString("ArgumentOutOfRange_IndexCountBuffer"));
+            }
+            if (byteIndex < 0 || byteIndex > bytes.Length)
+            {
+                throw new ArgumentOutOfRangeException("byteIndex", Environment.GetResourceString("ArgumentOutOfRange_Index"));
+            }
+            Contract.EndContractBlock();
+
+            // If nothing to encode return 0, avoid fixed problem
+            if (charCount == 0)
+                return 0;
+
+            // Note that this is the # of bytes to decode,
+            // not the size of the array
+            int byteCount = bytes.Length - byteIndex;
+
+            // Fixed doesn't like 0 length arrays.
+            if (bytes.Length == 0)
+                bytes = new byte[1];
+
+            // Just call the (internal) pointer version
+            fixed (char* pChars = chars) fixed (byte* pBytes = bytes)
+            {
+                return encoding.GetBytes(pChars + charIndex, charCount, pBytes + byteIndex, byteCount, encoder: null);
+            }
+        }
     }
 }
diff --git a/src/mscorlib/src/System/Text/EncodingNLS.cs b/src/mscorlib/src/System/Text/EncodingNLS.cs
@@ -91,43 +91,10 @@ public override int GetBytes(String s, int charIndex, int charCount,
         // EncodingNLS, UTF7Encoding, UTF8Encoding, UTF32Encoding, ASCIIEncoding, UnicodeEncoding
         // parent method is safe
         [System.Security.SecuritySafeCritical] // overrides public transparent member
-        public override unsafe int GetBytes(char[] chars, int charIndex, int charCount,
+        public override int GetBytes(char[] chars, int charIndex, int charCount,
                                                byte[] bytes, int byteIndex)
         {
-            // Validate parameters
-            if (chars == null || bytes == null)
-                throw new ArgumentNullException((chars == null ? "chars" : "bytes"), 
-                      Environment.GetResourceString("ArgumentNull_Array"));
-
-            if (charIndex < 0 || charCount < 0)
-                throw new ArgumentOutOfRangeException((charIndex<0 ? "charIndex" : "charCount"), 
-                      Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
-
-            if (chars.Length - charIndex < charCount)
-                throw new ArgumentOutOfRangeException("chars",
-                      Environment.GetResourceString("ArgumentOutOfRange_IndexCountBuffer"));
-
-            if (byteIndex < 0 || byteIndex > bytes.Length)
-                throw new ArgumentOutOfRangeException("byteIndex",
-                     Environment.GetResourceString("ArgumentOutOfRange_Index"));
-            Contract.EndContractBlock();
-
-            // If nothing to encode return 0, avoid fixed problem
-            if (charCount == 0)
-                return 0;
-
-            // Just call pointer version
-            int byteCount = bytes.Length - byteIndex;
-
-            // Fixed doesn't like empty arrays
-            if (bytes.Length == 0)
-                bytes = new byte[1];
-
-            fixed (char* pChars = chars)
-                fixed (byte* pBytes = bytes)
-                    // Remember that byteCount is # to decode, not size of array.
-                    return GetBytes(pChars + charIndex, charCount,
-                                    pBytes + byteIndex, byteCount, null);            
+            return EncodingForwarder.GetBytes(this, chars, charIndex, charCount, bytes, byteIndex);
         }
 
         // All of our public Encodings that don't use EncodingNLS must have this (including EncodingNLS)

diff --git a/src/mscorlib/src/System/Text/UTF32Encoding.cs b/src/mscorlib/src/System/Text/UTF32Encoding.cs
@@ -149,43 +149,10 @@ public override int GetBytes(String s, int charIndex, int charCount,
         // parent method is safe
 
         [System.Security.SecuritySafeCritical]  // auto-generated
-        public override unsafe int GetBytes(char[] chars, int charIndex, int charCount,
+        public override int GetBytes(char[] chars, int charIndex, int charCount,
                                                byte[] bytes, int byteIndex)
         {
-            // Validate parameters
-            if (chars == null || bytes == null)
-                throw new ArgumentNullException((chars == null ? "chars" : "bytes"),
-                      Environment.GetResourceString("ArgumentNull_Array"));
-
-            if (charIndex < 0 || charCount < 0)
-                throw new ArgumentOutOfRangeException((charIndex<0 ? "charIndex" : "charCount"),
-                      Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
-
-            if (chars.Length - charIndex < charCount)
-                throw new ArgumentOutOfRangeException("chars",
-                      Environment.GetResourceString("ArgumentOutOfRange_IndexCountBuffer"));
-
-            if (byteIndex < 0 || byteIndex > bytes.Length)
-                throw new ArgumentOutOfRangeException("byteIndex",
-                     Environment.GetResourceString("ArgumentOutOfRange_Index"));
-            Contract.EndContractBlock();
-
-            // If nothing to encode return 0, avoid fixed problem
-            if (charCount == 0)
-                return 0;
-
-            // Just call pointer version
-            int byteCount = bytes.Length - byteIndex;
-
-            // Fix our input array if 0 length because fixed doesn't like 0 length arrays
-            if (bytes.Length == 0)
-                bytes = new byte[1];
-
-            fixed (char* pChars = chars)
-                fixed (byte* pBytes = bytes)
-                    // Remember that byteCount is # to decode, not size of array.
-                    return GetBytes(pChars + charIndex, charCount,
-                                    pBytes + byteIndex, byteCount, null);
+            return EncodingForwarder.GetBytes(this, chars, charIndex, charCount, bytes, byteIndex);
         }
 
         // All of our public Encodings that don't use EncodingNLS must have this (including EncodingNLS)

diff --git a/src/mscorlib/src/System/Text/UTF7Encoding.cs b/src/mscorlib/src/System/Text/UTF7Encoding.cs
@@ -218,43 +218,10 @@ public override int GetBytes(String s, int charIndex, int charCount,
         // parent method is safe
 
         [System.Security.SecuritySafeCritical]  // auto-generated
-        public override unsafe int GetBytes(char[] chars, int charIndex, int charCount,
+        public override int GetBytes(char[] chars, int charIndex, int charCount,
                                                byte[] bytes, int byteIndex)
         {
-            // Validate parameters
-            if (chars == null || bytes == null)
-                throw new ArgumentNullException((chars == null ? "chars" : "bytes"),
-                      Environment.GetResourceString("ArgumentNull_Array"));
-
-            if (charIndex < 0 || charCount < 0)
-                throw new ArgumentOutOfRangeException((charIndex<0 ? "charIndex" : "charCount"),
-                      Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
-
-            if (chars.Length - charIndex < charCount)
-                throw new ArgumentOutOfRangeException("chars",
-                      Environment.GetResourceString("ArgumentOutOfRange_IndexCountBuffer"));
-
-            if (byteIndex < 0 || byteIndex > bytes.Length)
-                throw new ArgumentOutOfRangeException("byteIndex",
-                     Environment.GetResourceString("ArgumentOutOfRange_Index"));
-            Contract.EndContractBlock();
-
-            // If nothing to encode return 0, avoid fixed problem
-            if (charCount == 0)
-                return 0;
-
-            // Just call pointer version
-            int byteCount = bytes.Length - byteIndex;
-
-            // Fixed doesn't like empty arrays
-            if (bytes.Length == 0)
-                bytes = new byte[1];
-
-            fixed (char* pChars = chars)
-                fixed (byte* pBytes = bytes)
-                    // Remember that byteCount is # to decode, not size of array.
-                    return GetBytes(pChars + charIndex, charCount,
-                                    pBytes + byteIndex, byteCount, null);
+            return EncodingForwarder.GetBytes(this, chars, charIndex, charCount, bytes, byteIndex);
         }
 
         // All of our public Encodings that don't use EncodingNLS must have this (including EncodingNLS)

diff --git a/src/mscorlib/src/System/Text/UTF8Encoding.cs b/src/mscorlib/src/System/Text/UTF8Encoding.cs
@@ -176,43 +176,10 @@ public override int GetBytes(String s, int charIndex, int charCount,
         // parent method is safe
 
         [System.Security.SecuritySafeCritical]  // auto-generated
-        public override unsafe int GetBytes(char[] chars, int charIndex, int charCount,
+        public override int GetBytes(char[] chars, int charIndex, int charCount,
                                                byte[] bytes, int byteIndex)
         {
-            // Validate parameters
-            if (chars == null || bytes == null)
-                throw new ArgumentNullException((chars == null ? "chars" : "bytes"),
-                      Environment.GetResourceString("ArgumentNull_Array"));
-
-            if (charIndex < 0 || charCount < 0)
-                throw new ArgumentOutOfRangeException((charIndex<0 ? "charIndex" : "charCount"),
-                      Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
-
-            if (chars.Length - charIndex < charCount)
-                throw new ArgumentOutOfRangeException("chars",
-                      Environment.GetResourceString("ArgumentOutOfRange_IndexCountBuffer"));
-
-            if (byteIndex < 0 || byteIndex > bytes.Length)
-                throw new ArgumentOutOfRangeException("byteIndex",
-                     Environment.GetResourceString("ArgumentOutOfRange_Index"));
-            Contract.EndContractBlock();
-
-            // If nothing to encode return 0, avoid fixed problem
-            if (charCount == 0)
-                return 0;
-
-            // Just call pointer version
-            int byteCount = bytes.Length - byteIndex;
-
-            // Fixed doesn't like 0 length arrays.
-            if (bytes.Length == 0)
-                bytes = new byte[1];
-
-            fixed (char* pChars = chars)
-                fixed (byte* pBytes = bytes)
-                    // Remember that byteCount is # to decode, not size of array.
-                    return GetBytes(pChars + charIndex, charCount,
-                                    pBytes + byteIndex, byteCount, null);
+            return EncodingForwarder.GetBytes(this, chars, charIndex, charCount, bytes, byteIndex);
         }
 
         // All of our public Encodings that don't use EncodingNLS must have this (including EncodingNLS)

diff --git a/src/mscorlib/src/System/Text/UnicodeEncoding.cs b/src/mscorlib/src/System/Text/UnicodeEncoding.cs
@@ -148,43 +148,10 @@ public override int GetBytes(String s, int charIndex, int charCount,
         // parent method is safe
 
         [System.Security.SecuritySafeCritical]  // auto-generated
-        public override unsafe int GetBytes(char[] chars, int charIndex, int charCount,
+        public override int GetBytes(char[] chars, int charIndex, int charCount,
                                                byte[] bytes, int byteIndex)
         {
-            // Validate parameters
-            if (chars == null || bytes == null)
-                throw new ArgumentNullException((chars == null ? "chars" : "bytes"),
-                      Environment.GetResourceString("ArgumentNull_Array"));
-
-            if (charIndex < 0 || charCount < 0)
-                throw new ArgumentOutOfRangeException((charIndex<0 ? "charIndex" : "charCount"),
-                      Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
-
-            if (chars.Length - charIndex < charCount)
-                throw new ArgumentOutOfRangeException("chars",
-                      Environment.GetResourceString("ArgumentOutOfRange_IndexCountBuffer"));
-
-            if (byteIndex < 0 || byteIndex > bytes.Length)
-                throw new ArgumentOutOfRangeException("byteIndex",
-                     Environment.GetResourceString("ArgumentOutOfRange_Index"));
-            Contract.EndContractBlock();
-
-            // If nothing to encode return 0, avoid fixed problem
-            if (charCount == 0)
-                return 0;
-
-            // Just call pointer version
-            int byteCount = bytes.Length - byteIndex;
-
-            // Fixed doesn't like 0 length arrays.
-            if (bytes.Length == 0)
-                bytes = new byte[1];
-
-            fixed (char* pChars = chars)
-                fixed (byte* pBytes = bytes)
-                    // Remember that byteCount is # to decode, not size of array.
-                    return GetBytes(pChars + charIndex, charCount,
-                                    pBytes + byteIndex, byteCount, null);
+            return EncodingForwarder.GetBytes(this, chars, charIndex, charCount, bytes, byteIndex);
         }
 
         // All of our public Encodings that don't use EncodingNLS must have this (including EncodingNLS)