| Commit message (Collapse) | Author | Age | Files | Lines |
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these were occasionally timing out on our Windows CI
reference: https://github.com/scala/scala-dev/issues/313
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SI-9704 don't add a closing HtmlTag if it is already closed
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Fix erasure of the qualifier of ##
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SI-10194: Fix abstract type resolution for overloaded HOFs
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Types in the applicable overload alternatives need to be seen from
the respective owners of the individual alternative, not from the
target’s owner (which can be a subtype of the types that define the
methods).
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SI-10190 Elide string to empty instead of null
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Avoid NPE when eliding string-valued functions.
For example, `log(s"$cheap$expensive")` needn't print null.
This is a natural and inexpensive way to elide strings.
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SI-9881 Fix ImportHandler's reporting of importedNames and importedSymbols
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SI-10133 Require escaped single quote char lit
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Instead of indenting source code to make messages
align on output, let the reporter add indentation,
only if the source is the console (and not a pastie
or a loaded file).
Previously, syntax errors were not indented.
```
$ skala
Welcome to Scala 2.12.2-20170108-010722-939abf1 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_111).
Type in expressions for evaluation. Or try :help.
scala> 'abc'
<console>:1: error: unclosed character literal (or use " for string literal "abc")
'abc'
^
scala> :quit
$ scala
Welcome to Scala 2.12.1 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_111).
Type in expressions for evaluation. Or try :help.
scala> 'abc'
<console>:1: error: unclosed character literal
'abc'
^
```
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Folks from other languages might mistakenly enclose
a string in single quotes. Since this presents as
a symbol literal followed by the unpaired single
quote, we can add a syntax reminder.
Also polish the wording for bad string
interpolation.
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The spec specifically requires `'\''` and not `'''`.
The error consumes all consecutive single quotes.
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SI-10026 Fix endless cycle in runtime reflection
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56f23af introduced a call to `baseTypeSeq` of `scala.collection.mutable.ArrayOps.ofRef[?T]{}`
in `findMember`. This exposed a latent bug in the synchronized wrapper of `BaseTypeSeq`,
demonstrated below with an older version of Scala:
```
Welcome to Scala 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_112).
Type in expressions for evaluation. Or try :help.
scala> val symtab = reflect.runtime.universe.asInstanceOf[scala.reflect.internal.SymbolTable]
symtab: scala.reflect.internal.SymbolTable = scala.reflect.runtime.JavaUniverse@458544e0
scala> import symtab._
import symtab._
scala> val ArrayOps_ofRef_Class = symtab.symbolOf[scala.collection.mutable.ArrayOps.ofRef[AnyRef]]
ArrayOps_ofRef_Class: symtab.TypeSymbol = class ofRef
scala> appliedType(symbolOf[Set[Any]], symbolOf[Set[Any]].typeParams.map(TypeVar(_)))
res2: symtab.Type = Set[?A]
scala> .narrow
res3: symtab.Type = <none>.<refinement>.type
scala> .baseTypeSeq
java.lang.StackOverflowError
at scala.reflect.runtime.Gil$class.gilSynchronized(Gil.scala:21)
at scala.reflect.runtime.JavaUniverse.gilSynchronized(JavaUniverse.scala:16)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$class.map(SynchronizedOps.scala:27)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$$anon$2.map(SynchronizedOps.scala:34)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$class.lateMap(SynchronizedOps.scala:34)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$$anon$2.lateMap(SynchronizedOps.scala:34)
at scala.reflect.internal.BaseTypeSeqs$MappedBaseTypeSeq.map(BaseTypeSeqs.scala:235)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$$anon$2.scala$reflect$runtime$SynchronizedOps$SynchronizedBaseTypeSeq$$super$map(SynchronizedOps.scala:34)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$$anonfun$map$1.apply(SynchronizedOps.scala:27)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$$anonfun$map$1.apply(SynchronizedOps.scala:27)
at scala.reflect.runtime.Gil$class.gilSynchronized(Gil.scala:19)
at scala.reflect.runtime.JavaUniverse.gilSynchronized(JavaUniverse.scala:16)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$class.map(SynchronizedOps.scala:27)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$$anon$2.map(SynchronizedOps.scala:34)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$class.lateMap(SynchronizedOps.scala:34)
at scala.reflect.runtime.SynchronizedOps$SynchronizedBaseTypeSeq$$anon$2.lateMap(SynchronizedOps.scala:34)
at scala.reflect.internal.BaseTypeSeqs$MappedBaseTypeSeq.map(BaseTypeSeqs.scala:235)
```
The infinite cycle involves:
```
class MappedBaseTypeSeq(orig: BaseTypeSeq, f: Type => Type) extends BaseTypeSeq(orig.parents map f, orig.elems) {
...
override def map(g: Type => Type) = lateMap(g)
override def lateMap(g: Type => Type) = orig.lateMap(x => g(f(x)))
}
trait SynchronizedBaseTypeSeq extends BaseTypeSeq {
...
override def map(f: Type => Type): BaseTypeSeq = gilSynchronized { super.map(f) }
override def lateMap(f: Type => Type): BaseTypeSeq =
// only need to synchronize BaseTypeSeqs if they contain refined types
if (map(f).toList.exists(_.isInstanceOf[RefinedType])) new MappedBaseTypeSeq(this, f) with SynchronizedBaseTypeSeq
else new MappedBaseTypeSeq(this, f)
}
```
This commit creates a new factory method for `MappedBaseTypeSeq`-s to break the cycle.
As an independent change, I have also removed the attempt to conditionally synchronize them,
as the condition was eagerly applying the map function (and throwing away the result!).
I've appeased MiMa with new whitelist entries, but I'm confident that this is deep enough
in the bowels of our runtime reflection implementation that there is no way that user code
will be calling these methods directly.
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Ignore BoundedWildcardType in erasure type map
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This case can be triggered as illustrated in the test.
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Faster and simpler Java 9 classpath implementation
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- Take advantage of the `/packages` index provided by the
jrt file system to avoid (expensive) Files.exist for
non-existent entries across the full list of modules.
- Extends ClassPath directly which leads to a simpler
implemnentation that using the base class.
- Add a unit test that shows we can read classes and packages
from the Java standard library.
Fixes scala/scala-dev#306
With this change bootstrap time under Java 9 was comparable to
Java 8. Before, it was about 40% slower.
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SI-10148 Accept verbose zero
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The test for non-zero must recognize `-0e+00f` and variants.
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Fix scala/scala-dev#296
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SI-10164 BitSet.tail zigs where it zagged
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A cut/paste issue, an increment was held over from head,
which scans forward, to tail, which scans backward.
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run partest from sbt always, command line never
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these scripts are (I assume) unused these days and there's no reason
to maintain them. and it's risky to have two different ways of running
the same thing which could get out of sync with each other
sbt forks a JVM to run partest, so it's not like we need these scripts
in order to get a more isolated environment in that respect.
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SI-10148 Follow Java for float literals
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Use `Float.parseFloat` instead of converting from Double.
Error when a value rounds to zero.
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SI-10177 Override lazy operations to preserve TrieMap's semantics
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Calling .iterator on a TrieMap gives a read-only snapshot. This then
extends to most inherited implementations written in terms of .iterator.
However, some inherited methods, such as .values, either defer the call
to .iterator or call it more than once. This results in subsequent
mutations to the original map being visible
I reviewed the inherited implementations from MapLike and found we
needed overrides of `values`, `keySet`, `filterKeys`, and `mapValues`.
Like `iterator`, these now create a read-only snapshot.
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SI-4700 The thrilling continuation to the infix type printing saga.
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Add ability to disable this via the @showAsInfix annotation.
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```
scala> import scala.annotation.infix
import scala.annotation.infix
scala> @infix class &&[T, U]
defined class $amp$amp
scala> def foo: Int && Boolean = ???
foo: Int && Boolean
```
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SI-9636 More precise error pos on apply inference
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If a method type arg is inferred Any, warn about the
function and not the innocent arg.
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SI-9675 warn about non-sensible equals in anonymous functions
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Delete some unused scripts
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SI-10072 cast Function nodes to environment in specialization
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This commit basically make sure the fix for SI-5284 works correctly when
a Function node reaches specialization (`-Ydealmbdafy:method` and
IndyLambda are default in 2.12.x). To understand it, best read the
excellent description in b29c01b.
The code that's removed in this commit was added in 13ea590. It
prevented `castType` from being invoked on the `Function` node, which
is exactly what is needed here. It's also what happens under
`-Ydelambdafy:inline`, the `new anonfun()` tree is being casted from
`(Int, Int) => Int` to `(Int, A) => Int`.
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SI-10066 Fix crash in erroneous code with implicits, dynamic
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The compiler support in the typechecker for `scala.Dynamic` is
very particular about the `Context` in which it is typechecked.
It looks at the `tree` in the enclosing context to find the expression
immediately enclosing the dynamic selection. See the logic in
`dyna::mkInvoke` for the details.
This commit substitutes the result of `resetAttrs` into the tree
of the typer context before continuing with typechecking.
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