Replace constructors fns with static methods

hash.rs

@@ -59,18 +59,15 @@ pub struct Hasher {
     priv len: uint,
 }
 
-pub fn Hasher(ht: HashType) -> Hasher {
+impl Hasher {
+    pub fn new(ht: HashType) -> Hasher {
         let ctx = unsafe { libcrypto::EVP_MD_CTX_create() };
         let (evp, mdlen) = evpmd(ht);
-    let h = Hasher { evp: evp, ctx: ctx, len: mdlen };
-    h.init();
-    h
-}
+        unsafe {
+            libcrypto::EVP_DigestInit(ctx, evp);
+        }
 
-impl Hasher {
-    /// Initializes this hasher
-    pub fn init(&self) {
-        unsafe { libcrypto::EVP_DigestInit(self.ctx, self.evp) }
+        Hasher { evp: evp, ctx: ctx, len: mdlen }
     }
 
     /// Update this hasher with more input bytes
@@ -110,7 +107,7 @@ impl Drop for Hasher {
  * value
  */
 pub fn hash(t: HashType, data: &[u8]) -> ~[u8] {
-    let h = Hasher(t);
+    let h = Hasher::new(t);
     h.update(data);
     h.final()
 }

pkey.rs

@@ -74,15 +74,15 @@ pub struct PKey {
     priv parts: Parts,
 }
 
-pub fn PKey() -> PKey {
-    PKey {
-        evp: unsafe { libcrypto::EVP_PKEY_new() },
-        parts: Neither
-    }
-}
-
 ///Represents a public key, optionally with a private key attached.
 impl PKey {
+    pub fn new() -> PKey {
+        PKey {
+            evp: unsafe { libcrypto::EVP_PKEY_new() },
+            parts: Neither,
+        }
+    }
+
     fn _tostr(&self, f: extern "C" unsafe fn(*EVP_PKEY, **mut u8) -> c_int) -> ~[u8] {
         unsafe {
             let len = f(self.evp, ptr::null());
@@ -350,8 +350,8 @@ mod tests {
 
     #[test]
     fn test_gen_pub() {
-        let mut k0 = PKey();
-        let mut k1 = PKey();
+        let mut k0 = PKey::new();
+        let mut k1 = PKey::new();
         k0.gen(512u);
         k1.load_pub(k0.save_pub());
         assert!(k0.save_pub() == k1.save_pub());
@@ -368,8 +368,8 @@ mod tests {
 
     #[test]
     fn test_gen_priv() {
-        let mut k0 = PKey();
-        let mut k1 = PKey();
+        let mut k0 = PKey::new();
+        let mut k1 = PKey::new();
         k0.gen(512u);
         k1.load_priv(k0.save_priv());
         assert!(k0.save_priv() == k1.save_priv());
@@ -386,8 +386,8 @@ mod tests {
 
     #[test]
     fn test_encrypt() {
-        let mut k0 = PKey();
-        let mut k1 = PKey();
+        let mut k0 = PKey::new();
+        let mut k1 = PKey::new();
         let msg = ~[0xdeu8, 0xadu8, 0xd0u8, 0x0du8];
         k0.gen(512u);
         k1.load_pub(k0.save_pub());
@@ -398,8 +398,8 @@ mod tests {
 
     #[test]
     fn test_sign() {
-        let mut k0 = PKey();
-        let mut k1 = PKey();
+        let mut k0 = PKey::new();
+        let mut k1 = PKey::new();
         let msg = ~[0xdeu8, 0xadu8, 0xd0u8, 0x0du8];
         k0.gen(512u);
         k1.load_pub(k0.save_pub());

symm.rs

@@ -61,13 +61,13 @@ pub struct Crypter {
     priv blocksize: uint
 }
 
-pub fn Crypter(t: Type) -> Crypter {
+impl Crypter {
+    pub fn new(t: Type) -> Crypter {
         let ctx = unsafe { libcrypto::EVP_CIPHER_CTX_new() };
         let (evp, keylen, blocksz) = evpc(t);
         Crypter { evp: evp, ctx: ctx, keylen: keylen, blocksize: blocksz }
-}
+    }
 
-impl Crypter {
     /**
      * Enables or disables padding. If padding is disabled, total amount of
      * data encrypted must be a multiple of block size.
@@ -163,7 +163,7 @@ impl Drop for Crypter {
  * specified key and iv; returns the resulting (encrypted) data.
  */
 pub fn encrypt(t: Type, key: &[u8], iv: ~[u8], data: &[u8]) -> ~[u8] {
-    let c = Crypter(t);
+    let c = Crypter::new(t);
     c.init(Encrypt, key, iv);
     let r = c.update(data);
     let rest = c.final();
@@ -175,7 +175,7 @@ pub fn encrypt(t: Type, key: &[u8], iv: ~[u8], data: &[u8]) -> ~[u8] {
  * specified key and iv; returns the resulting (decrypted) data.
  */
 pub fn decrypt(t: Type, key: &[u8], iv: ~[u8], data: &[u8]) -> ~[u8] {
-    let c = Crypter(t);
+    let c = Crypter::new(t);
     c.init(Decrypt, key, iv);
     let r = c.update(data);
     let rest = c.final();
@@ -201,7 +201,7 @@ mod tests {
         let c0 =
            ~[ 0x8eu8, 0xa2u8, 0xb7u8, 0xcau8, 0x51u8, 0x67u8, 0x45u8, 0xbfu8,
               0xeau8, 0xfcu8, 0x49u8, 0x90u8, 0x4bu8, 0x49u8, 0x60u8, 0x89u8 ];
-        let c = Crypter(AES_256_ECB);
+        let c = Crypter::new(AES_256_ECB);
         c.init(Encrypt, k0, []);
         c.pad(false);
         let r0 = c.update(p0) + c.final();