make unittests compile with -property

bio/bam/bgzf/blockrange.d

@@ -129,7 +129,7 @@ struct BgzfRange {
      */
     @property ulong start_offset() { return _start_offset; }
 
-    bool empty() {
+    bool empty() @property {
         return _empty;
     }
 
@@ -137,7 +137,7 @@ struct BgzfRange {
         loadNextBlock();
     }
 
-    BgzfBlock front() {
+    BgzfBlock front() @property {
         return _current_block;
     }
 

bio/bam/read.d

@@ -334,7 +334,7 @@ struct BamRead {
             return res;
         }
 
-        SequenceResult save() const {
+        @property SequenceResult save() const {
             return SequenceResult(_data[_getActualPosition(_index) .. $], 
                                   _len - _index, 
                                   _useFirst4Bits(_index));

bio/bam/samfile.d

@@ -42,7 +42,7 @@ struct SamFile {
     this(string filename) {
         _file = File(filename);
         _filename = filename;
-        _seekable = lseek(_file.fileno, 0, 0) != ~0;
+        _seekable = lseek(_file.fileno(), 0, 0) != ~0;
         _initializeStream();
     }
 

bio/bam/samheader.d

@@ -98,7 +98,7 @@ private {
                 str ~= `putinteger(stream, `~Field[0].name~`);`.dup;
             }
             str ~= `}`.dup;
-            return str.idup ~ serializeFields!(Field[1..$]);
+            return str.idup ~ serializeFields!(Field[1..$])();
         } else {
             return "";
         }
@@ -296,7 +296,7 @@ struct ValueRange(T) {
     void popBack() { _ids = _ids[0 .. $ - 1]; }
     ref T opIndex(size_t i) { return _dict[_ids[i]]; }
     size_t length() @property { return _ids.length; }
-    ValueRange save() { return ValueRange(_dict, _ids[]); }
+    ValueRange save() @property { return ValueRange(_dict, _ids[]); }
 }
 
 /// Common class for storing header lines

bio/core/utils/stream.d

@@ -20,7 +20,7 @@ final class File: std.stream.File {
 
     override ulong seek(long offset, SeekPos rel) {
         assertSeekable();
-        auto hFile = handle;
+        auto hFile = handle();
         version (Windows) {
           int hi = cast(int)(offset>>32);
           uint low = SetFilePointer(hFile, cast(int)offset, &hi, rel);

test/unittests.d

@@ -79,7 +79,7 @@ unittest {
     assert(read.mapping_quality == 0);
     reads.popFront();
     reads.popFront();
-    assert(reads.front.cigarString == "35M");
+    assert(reads.front.cigarString() == "35M");
     assert(toSam(reads.front, bf.reference_sequences) == "EAS51_64:3:190:727:308	99	chr1	103	99	35M	=	263	195	GGTGCAGAGCCGAGTCACGGGGTTGCCAGCACAGG	<<<<<<<<<<<<<<<<<<<<<<<<<<<::<<<844	MF:i:18	Aq:i:73	NM:i:0	UQ:i:0	H0:i:1	H1:i:0");
     assert(bf.header.getSequenceIndex("chr1") == read.ref_id);
     }