src: move all base64.h inline methods into -inl.h header file

Refs: https://github.com/nodejs/node/pull/34944#discussion_r480321239

PR-URL: https://github.com/nodejs/node/pull/35432
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

4 files changed, 91 insertions, 76 deletions

diff --git a/src/base64-inl.h b/src/base64-inl.h
index 9132faa614e..57c11bde2d7 100644
--- a/src/base64-inl.h
+++ b/src/base64-inl.h
@@ -3,6 +3,7 @@
 
 #if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
 
+#include "base64.h"
 #include "util.h"
 
 namespace node {
@@ -91,6 +92,90 @@ size_t base64_decode_fast(char* const dst, const size_t dstlen,
   return k;
 }
 
+
+template <typename TypeName>
+size_t base64_decoded_size(const TypeName* src, size_t size) {
+  // 1-byte input cannot be decoded
+  if (size < 2)
+    return 0;
+
+  if (src[size - 1] == '=') {
+    size--;
+    if (src[size - 1] == '=')
+      size--;
+  }
+  return base64_decoded_size_fast(size);
+}
+
+
+template <typename TypeName>
+size_t base64_decode(char* const dst, const size_t dstlen,
+                     const TypeName* const src, const size_t srclen) {
+  const size_t decoded_size = base64_decoded_size(src, srclen);
+  return base64_decode_fast(dst, dstlen, src, srclen, decoded_size);
+}
+
+
+inline size_t base64_encode(const char* src,
+                            size_t slen,
+                            char* dst,
+                            size_t dlen) {
+  // We know how much we'll write, just make sure that there's space.
+  CHECK(dlen >= base64_encoded_size(slen) &&
+        "not enough space provided for base64 encode");
+
+  dlen = base64_encoded_size(slen);
+
+  unsigned a;
+  unsigned b;
+  unsigned c;
+  unsigned i;
+  unsigned k;
+  unsigned n;
+
+  static const char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                              "abcdefghijklmnopqrstuvwxyz"
+                              "0123456789+/";
+
+  i = 0;
+  k = 0;
+  n = slen / 3 * 3;
+
+  while (i < n) {
+    a = src[i + 0] & 0xff;
+    b = src[i + 1] & 0xff;
+    c = src[i + 2] & 0xff;
+
+    dst[k + 0] = table[a >> 2];
+    dst[k + 1] = table[((a & 3) << 4) | (b >> 4)];
+    dst[k + 2] = table[((b & 0x0f) << 2) | (c >> 6)];
+    dst[k + 3] = table[c & 0x3f];
+
+    i += 3;
+    k += 4;
+  }
+
+  switch (slen - n) {
+    case 1:
+      a = src[i + 0] & 0xff;
+      dst[k + 0] = table[a >> 2];
+      dst[k + 1] = table[(a & 3) << 4];
+      dst[k + 2] = '=';
+      dst[k + 3] = '=';
+      break;
+    case 2:
+      a = src[i + 0] & 0xff;
+      b = src[i + 1] & 0xff;
+      dst[k + 0] = table[a >> 2];
+      dst[k + 1] = table[((a & 3) << 4) | (b >> 4)];
+      dst[k + 2] = table[(b & 0x0f) << 2];
+      dst[k + 3] = '=';
+      break;
+  }
+
+  return dlen;
+}
+
 }  // namespace node
 
 #endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
diff --git a/src/base64.h b/src/base64.h
index 24fc57e1d60..e58baa5f6e4 100644
--- a/src/base64.h
+++ b/src/base64.h
@@ -4,7 +4,6 @@
 #if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
 
 #include "util.h"
-#include "base64-inl.h"
 
 #include <cstddef>
 #include <cstdint>
@@ -24,85 +23,16 @@ static inline constexpr size_t base64_decoded_size_fast(size_t size) {
 inline uint32_t ReadUint32BE(const unsigned char* p);
 
 template <typename TypeName>
-size_t base64_decoded_size(const TypeName* src, size_t size) {
-  // 1-byte input cannot be decoded
-  if (size < 2)
-    return 0;
-
-  if (src[size - 1] == '=') {
-    size--;
-    if (src[size - 1] == '=')
-      size--;
-  }
-  return base64_decoded_size_fast(size);
-}
+size_t base64_decoded_size(const TypeName* src, size_t size);
 
 template <typename TypeName>
 size_t base64_decode(char* const dst, const size_t dstlen,
-                     const TypeName* const src, const size_t srclen) {
-  const size_t decoded_size = base64_decoded_size(src, srclen);
-  return base64_decode_fast(dst, dstlen, src, srclen, decoded_size);
-}
+                     const TypeName* const src, const size_t srclen);
 
-static size_t base64_encode(const char* src,
+inline size_t base64_encode(const char* src,
                             size_t slen,
                             char* dst,
-                            size_t dlen) {
-  // We know how much we'll write, just make sure that there's space.
-  CHECK(dlen >= base64_encoded_size(slen) &&
-        "not enough space provided for base64 encode");
-
-  dlen = base64_encoded_size(slen);
-
-  unsigned a;
-  unsigned b;
-  unsigned c;
-  unsigned i;
-  unsigned k;
-  unsigned n;
-
-  static const char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                              "abcdefghijklmnopqrstuvwxyz"
-                              "0123456789+/";
-
-  i = 0;
-  k = 0;
-  n = slen / 3 * 3;
-
-  while (i < n) {
-    a = src[i + 0] & 0xff;
-    b = src[i + 1] & 0xff;
-    c = src[i + 2] & 0xff;
-
-    dst[k + 0] = table[a >> 2];
-    dst[k + 1] = table[((a & 3) << 4) | (b >> 4)];
-    dst[k + 2] = table[((b & 0x0f) << 2) | (c >> 6)];
-    dst[k + 3] = table[c & 0x3f];
-
-    i += 3;
-    k += 4;
-  }
-
-  switch (slen - n) {
-    case 1:
-      a = src[i + 0] & 0xff;
-      dst[k + 0] = table[a >> 2];
-      dst[k + 1] = table[(a & 3) << 4];
-      dst[k + 2] = '=';
-      dst[k + 3] = '=';
-      break;
-    case 2:
-      a = src[i + 0] & 0xff;
-      b = src[i + 1] & 0xff;
-      dst[k + 0] = table[a >> 2];
-      dst[k + 1] = table[((a & 3) << 4) | (b >> 4)];
-      dst[k + 2] = table[(b & 0x0f) << 2];
-      dst[k + 3] = '=';
-      break;
-  }
-
-  return dlen;
-}
+                            size_t dlen);
 }  // namespace node
 
 
diff --git a/src/inspector_socket.cc b/src/inspector_socket.cc
index ec347732404..35306af3c66 100644
--- a/src/inspector_socket.cc
+++ b/src/inspector_socket.cc
@@ -1,7 +1,7 @@
 #include "inspector_socket.h"
 #include "llhttp.h"
 
-#include "base64.h"
+#include "base64-inl.h"
 #include "util-inl.h"
 
 #include "openssl/sha.h"  // Sha-1 hash
diff --git a/src/string_bytes.cc b/src/string_bytes.cc
index 68c7c06d8df..b03268c49af 100644
--- a/src/string_bytes.cc
+++ b/src/string_bytes.cc
@@ -21,7 +21,7 @@
 
 #include "string_bytes.h"
 
-#include "base64.h"
+#include "base64-inl.h"
 #include "env-inl.h"
 #include "node_buffer.h"
 #include "node_errors.h"