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June 11, 2016 15:06
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Where String#+ comes from?
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| object Tmp { | |
| "zzz" ++ "kkk" // Fails with -Yno-predef | |
| // after typer the above is scala.this.Predef.augmentString("zzz").++[Char, String](scala.this.Predef.augmentString("kkk"))(scala.this.Predef.StringCanBuildFrom); | |
| "aaa"+new Object() // Doesn't fail ever! | |
| // after typer the above is "aaa".+(new java.this.lang.Object()); | |
| // Why didn't `+` desugar to something else? | |
| new Object() + "aaa" // Fails with -Yno-predef | |
| // after typer the above is scala.this.Predef.any2stringadd[Object](new java.this.lang.Object()).+("aaa"); | |
| // import Predef.{any2stringadd => _, StringAdd => _, augmentString => _, _} | |
| } |
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Awesome, cool!