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author | Martin Odersky <odersky@gmail.com> | 2007-03-22 14:57:44 +0000 |
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committer | Martin Odersky <odersky@gmail.com> | 2007-03-22 14:57:44 +0000 |
commit | 0196b0e057dcd62903b6635f53d2857ea182280a (patch) | |
tree | c88d8741a32cb20e871f56f480e7fd9bb62e66de /test | |
parent | 2dcc3776f9ba385b9b75cefba16ea27009b6eed2 (diff) | |
download | scala-0196b0e057dcd62903b6635f53d2857ea182280a.tar.gz scala-0196b0e057dcd62903b6635f53d2857ea182280a.tar.bz2 scala-0196b0e057dcd62903b6635f53d2857ea182280a.zip |
(1) added readLong to Console.
(2) added print/read methods to Predef
(3) added warnings for non-sensical comparisons
Diffstat (limited to 'test')
-rw-r--r-- | test/files/neg/checksensible.check | 28 | ||||
-rw-r--r-- | test/files/neg/checksensible.scala | 26 |
2 files changed, 54 insertions, 0 deletions
diff --git a/test/files/neg/checksensible.check b/test/files/neg/checksensible.check new file mode 100644 index 0000000000..a4cf1cfe41 --- /dev/null +++ b/test/files/neg/checksensible.check @@ -0,0 +1,28 @@ +checksensible.scala:4: warning: comparing values of types scala.Ordered[scala.Unit] and scala.Unit using `>' will always yield false + println((c = 1) > 0) + ^ +checksensible.scala:5: warning: comparing values of types scala.Ordered[scala.Unit] and scala.Unit using `<=' will always yield true + println((c = 1) <= 0) + ^ +checksensible.scala:6: warning: comparing values of types scala.Unit and scala.Int using `==' will always yield false + println((c = 1) == 0) + ^ +checksensible.scala:8: warning: comparing values of types scala.Int and java.lang.String using `==' will always yield false + println(1 == "abc") + ^ +checksensible.scala:9: warning: comparing values of types scala.Int and scala.Boolean using `!=' will always yield true + println(1 != true) + ^ +checksensible.scala:11: warning: comparing a fresh object using `==' will always yield false + println(((x: int) => x + 1) == null) + ^ +checksensible.scala:12: warning: comparing a fresh object using `==' will always yield false + println(new Object == new Object) + ^ +checksensible.scala:13: warning: comparing a fresh object using `!=' will always yield true + println(new Array(1) != new Array(1)) + ^ +checksensible.scala:20: warning: comparing values of types scala.Unit and scala.Int using `!=' will always yield true + while((c = in.read) != -1) { + ^ +9 warnings found diff --git a/test/files/neg/checksensible.scala b/test/files/neg/checksensible.scala new file mode 100644 index 0000000000..1a2c4425fd --- /dev/null +++ b/test/files/neg/checksensible.scala @@ -0,0 +1,26 @@ +import java.io._ +object Test { + var c = 0 + println((c = 1) > 0) + println((c = 1) <= 0) + println((c = 1) == 0) + + println(1 == "abc") + println(1 != true) + + println(((x: int) => x + 1) == null) + println(new Object == new Object) + println(new Array(1) != new Array(1)) + + def main(args: Array[String]) = { + val in = new FileInputStream(args(0)) + + var c = 0 + + while((c = in.read) != -1) { + Console.print(c.toChar) + } + + in.close + } +} |