many warnings cleaned up

src/qrcode/encoder/bit_vector_testcase.rs

@@ -128,7 +128,7 @@ fn testXOR() {
     v1.appendBits(0x5555aaaa, 32).expect("append");
     let mut v2 = BitArray::new();
     v2.appendBits(0xaaaa5555, 32).expect("append");
-    v1.xor(&v2);
+    v1.xor(&v2).expect("xor");
     assert_eq!(0xffffffff, getUnsignedInt(&v1));
 }
 
@@ -137,8 +137,8 @@ fn testXOR2() {
     let mut v1 = BitArray::new();
     v1.appendBits(0x2a, 7).expect("append"); // 010 1010
     let mut v2 = BitArray::new();
-    v2.appendBits(0x55, 7); // 101 0101
-    v1.xor(&v2);
+    v2.appendBits(0x55, 7).expect("append"); // 101 0101
+    v1.xor(&v2).expect("xor");
     assert_eq!(0xfe000000, getUnsignedInt(&v1)); // 1111 1110
 }
 

src/qrcode/encoder/encoder.rs

@@ -13,25 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
-// package com.google.zxing.qrcode.encoder;
-
-// import com.google.zxing.EncodeHintType;
-// import com.google.zxing.WriterException;
-// import com.google.zxing.common.BitArray;
-// import com.google.zxing.common.StringUtils;
-// import com.google.zxing.common.CharacterSetECI;
-// import com.google.zxing.common.reedsolomon.GenericGF;
-// import com.google.zxing.common.reedsolomon.ReedSolomonEncoder;
-// import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
-// import com.google.zxing.qrcode.decoder.Mode;
-// import com.google.zxing.qrcode.decoder.Version;
-
-// import java.nio.charset.Charset;
-// import java.nio.charset.StandardCharsets;
-// import java.util.ArrayList;
-// import java.util.Collection;
-// import java.util.Map;
+/**
+ * @author satorux@google.com (Satoru Takabayashi) - creator
+ * @author dswitkin@google.com (Daniel Switkin) - ported from C++
+ */
 
 use std::collections::HashMap;
 
@@ -51,11 +36,6 @@ use crate::{
 
 use super::{mask_util, matrix_util, BlockPair, ByteMatrix, MinimalEncoder, QRCode};
 
-/**
- * @author satorux@google.com (Satoru Takabayashi) - creator
- * @author dswitkin@google.com (Daniel Switkin) - ported from C++
- */
-
 lazy_static! {
     static ref SHIFT_JIS_CHARSET: EncodingRef =
         encoding::label::encoding_from_whatwg_label("SJIS").unwrap();

src/qrcode/encoder/matrix_util_testcase.rs

@@ -245,7 +245,7 @@ fn testBuildMatrix() {
     let mut bits = BitArray::new();
     for c in bytes {
         // for (char c: bytes) {
-        bits.appendBits(c, 8);
+        bits.appendBits(c, 8).expect("append");
     }
     let mut matrix = ByteMatrix::new(21, 21);
     matrix_util::buildMatrix(

src/qrcode/encoder/minimal_encoder.rs

@@ -616,8 +616,8 @@ pub struct Edge {
     characterLength: u32,
     previous: Option<Rc<Edge>>,
     cachedTotalSize: u32,
-    encoders: ECIEncoderSet,
-    stringToEncode: Vec<String>,
+    _encoders: ECIEncoderSet,
+    _stringToEncode: Vec<String>,
 }
 impl Edge {
     pub fn new(
@@ -641,7 +641,7 @@ impl Edge {
             charsetEncoderIndex: nci,
             characterLength,
             previous: previous.clone(),
-            stringToEncode: stringToEncode.clone(),
+            _stringToEncode: stringToEncode.clone(),
             cachedTotalSize: {
                 let mut size = if previous.is_some() {
                     previous.as_ref().unwrap().cachedTotalSize
@@ -713,7 +713,7 @@ impl Edge {
                 // }
                 size
             },
-            encoders,
+            _encoders : encoders,
         }
         // this.mode = mode;
         // this.fromPosition = fromPosition;

src/qrcode/encoder/mod.rs

@@ -12,12 +12,12 @@ pub use minimal_encoder::*;
 pub use qr_code::*;
 
 #[cfg(test)]
-mod BitVectorTestCase;
+mod bit_vector_testcase;
 #[cfg(test)]
 mod EncoderTestCase;
 #[cfg(test)]
 mod MaskUtilTestCase;
 #[cfg(test)]
-mod MatrixUtilTestCase;
+mod matrix_util_testcase;
 #[cfg(test)]
 mod QRCodeTestCase;