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SI-9953 Any Any aborts warn on equals
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Don't warn about equals if any `Any` is involved. cf SI-8965
The condition for warning is that both types lub to a supertype
of Object.
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SI-9944 Scan after interp expr keeps CR
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In an interpolated expression `s"""${ e }"""`, the scanner
advances input past the RBRACE. If a multiline string as
shown, get the next raw char, because CR is significant.
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SI-9915 Fix test on windows
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Use `javac: -encoding UTF-8` tool args comment
so javac uses correct source encoding.
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Avoid double-compiling junit sources
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Fixes scala/scala-dev#266
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improve top-level compiler/reflect doc text
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this shows up at http://www.scala-lang.org/api/2.12.0/scala-compiler/
ideally there'd be something better here, but we should at least not
link to egregiously outdated stuff
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SI-10059 reset the `DEFERRED` flag for Java varargs forwarders
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When an abstract method is annotated `@varargs`, make sure that the
generated synthetic Java varargs method does not have the `DEFERRED`
flag (`ACC_ABSTRACT` in bytecode).
The flag lead to an NPE in the code generator, because the ASM framework
leaves certain fields `null` for abstract methods (`localVariables` in
this case).
Interestingly this did not crash in 2.11.x: the reason is that the test
whether to emit a method body or not has changed in the 2.12 backend
(in c8e6050).
val isAbstractMethod = [..] methSymbol.isDeferred [..] // 2.11
val isAbstractMethod = rhs == EmptyTree // 2.12
So in 2.11, the varargs forwarder method was actually left abstract in
bytecode, leading to an `AbstractMethodError: T.m([I)I` at run-time.
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Add “test”, “scaladoc” and “repl” projects to scala-compiler docs
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This makes the scaladoc bundle for scala-compiler consistent with the
binary and source bundles.
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SI-9915 Utf8_info are modified UTF8
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Use DataInputStream.readUTF to read CONSTANT_Utf8_info.
This fixes reading embedded null char and supplementary chars.
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Fix typo in scalac, scalap man pages
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s/exist status/exit status/
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SI-8433 SI-9689 Progressive tests
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Because no one votes against a progressive test.
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Typo and spelling corrections
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remove old, now-unused MANIFEST.MF file
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as per https://github.com/scala/scala-dev/issues/211
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avoid boxing
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scala.runtime.Rich{Double, Float} has `isNaN` and these are value class.
Also java.lang.{Double, Float} has `isNaN`.
- https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html#isNaN--
- https://docs.oracle.com/javase/8/docs/api/java/lang/Float.html#isNaN--
We can't call `RichDouble#isNaN` because
`implicit def double2Double(x: Double): java.lang.Double`
is higher priority than
`implicit def doubleWrapper(x: Double): RichDouble`
```
$ scala -version
Scala code runner version 2.11.8 -- Copyright 2002-2016, LAMP/EPFL
$ scala -Xprint:jvm -e "1.0.isNaN"
[[syntax trees at end of jvm]] // scalacmd616162202928036892.scala
package <empty> {
object Main extends Object {
def main(args: Array[String]): Unit = {
new <$anon: Object>();
()
};
def <init>(): Main.type = {
Main.super.<init>();
()
}
};
final class anon$1 extends Object {
def <init>(): <$anon: Object> = {
anon$1.super.<init>();
scala.this.Predef.double2Double(1.0).isNaN();
()
}
}
}
```
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SI-9888. Prevent OOM on ParRange. Improve toString.
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Define the root sbt project's scalaVersion
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The root project is commonly used as the reference point for values, such
as "the scala version" of the (entire) project.
For example ENSIME uses it like that.
Also disablePublishing already disables publish and publishLocal.
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Improved runtime speed for Vector, restoring previous performance.
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to avoid the same kind of slowdowns that Vector was experiencing due
to the less aggressive inlining by scalac.
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All calls to Platform.arraycopy were rewritten as java.lang.System.arraycopy to reduce the work that the JIT compiler has to do to produce optimized bytecode that avoids zeroing just-allocated arrays that are about to be copied over.
(Tested with -XX:-ReduceBulkZeroing as suggested by retronym.)
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Don’t include scala-asm.jar in scala-compiler.jar
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Fixes https://github.com/scala/scala-dev/issues/254
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Spec: Fix 2 pairs of quotes in text.
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Add support for -Dpartest.scalac_opts to the partest command
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SI-6978 No linting of Java parens
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Don't lint overriding of nullary by non-nullary
when non-nullary is Java-defined. They can't help it.
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SI-6734 Synthesize companion near case class
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Tweak the "should I synthesize now" test for
case modules, so that the tree is inserted in
the same tree as the case class.
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SI-10032 Fix code gen with returns in nested try-finally blocks
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When a return in a finalizer was reached through a return within the try
block, the backend ignored the return in the finalizer:
try {
try { return 1 }
finally { return 2 }
} finally { println() }
This expression should evaluate to 2 (it does in 2.11.8), but in 2.12.0
it the result is 1.
The Scala spec is currently incomplete, it does not say that a finalizer
should be exectuted if a return occurs within a try block, and it does
not specify what happens if also the finally block has a return.
So we follow the Java spec, which basically says: if the finally blocks
completes abruptly for reason S, then the entire try statement completes
abruptly with reason S. An abrupt termination of the try block for a
different reason R is discarded.
Abrupt completion is basically returning or throwing.
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Return statements within `try` or `catch` blocks need special treatement
if there's also a `finally`
try { return 1 } finally { println() }
For the return, the code generator emits a store to a local and a jump
to a "cleanup" version of the finally block. There will be 3 versions
of the finally block:
- One reached through a handler, if the code in the try block
throws; re-throws at the end
- A "cleanup" version reached from returns within the try; reads the
local and returns the value at the end
- One reached for ordinary control flow, if there's no return and no
exception within the try
If there are multiple enclosing finally blocks, a "cleanup" version is
emitted for each of them. The nested ones jump to the enclosing ones,
the outermost one reads the local and returns.
A global variable `shouldEmitCleanup` stores whether cleanup versions
are required for the curren finally blocks. By mistake, this variable
was not reset to `false` when emitting a `try-finally` nested within a
`finally`:
try {
try { return 1 }
finally { println() } // need cleanup version
} finally { // need cleanup version
try { println() }
finally { println() } // no cleanup version needed!
}
In this commit we ensure that the variable is reset when emitting
nested `try-finally` blocks.
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avoid deprecated sbt 0.12 operators
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this is allowed in recent sbt versions
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