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* Merge pull request #4862 from retronym/ticket/9567Lukas Rytz2015-12-183-0/+66
|\ | | | | SI-9567 Fix pattern match on 23+ param, method local case class
| * SI-9567 Fix pattern match on 23+ param, method local case classJason Zaugg2015-11-252-0/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Typechecking constructor patterns of method local case classes was only working because of the existence of the unapply method in the companion, which is used if navigation to the case class companion object fails. We now support defintion of, and pattern matching on, case classes with more than 22 parameters. These have no `unapply` method in the companion, as we don't have a large enough tuple type to return. So for such case classes, the fallback that we inadvertently relied on would no longer save us, and we'd end up with a compile error advising that the identifier in the constructor pattern was neither a case class nor an extractor. This is due to the propensity of `Symbol#companionXxx` to return `NoSymbol` when in the midst of typechecking. That method should only be relied upon after typechecking. During typechecking, `Namers#companionSymbolOf` should be used instead, which looks in the scopes of enclosing contexts for symbol companionship. That's what I've done in this commit.
| * SI-9567 Fix latent bugs in patmat's reasoning about mutabilityJason Zaugg2015-11-251-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Under -optimize, the pattern matcher tries to avoid local variables in favour of directly accessing to non-var case class accessors. However, the code that analysed the patterns failed to account properly for repeated parameters, which could either lead to a compiler crash (when assuming that the n-th subpattern must have a corresponding param accessor), or could lead to a correctness problem (when failing to eagerly the bound elements from the sequence.) The test case that tried to cover seems only to have been working because of a separate bug (the primary subject of SI-9567) related to method-local case classes: they were treated during typechecking as extractors, rather than native case classes. The subsequent commit will fix that problem, but first we must pave the way with this commit that emits local vals for bound elements of case class repeated params.
* | Merge pull request #4876 from ruippeixotog/issue/9581Seth Tisue2015-12-151-0/+30
|\ \ | | | | | | SI-9581 Fix overflow on Vector take and drop methods
| * | SI-9581 Fix overflow on Vector take and drop methodsRui Gonçalves2015-12-061-0/+30
| |/ | | | | | | | | | | Fixes the index/length comparison in `Vector#take` and `Vector#drop` so that they handle all possible integer values. Given the collection's invariants `startIndex >= endIndex` and `0 >= startIndex, endIndex`, it is sufficient to change the arithmetic in the comparison as done in this commit to avoid overflows. As cases when `n <= 0` are handled beforehand, `endIndex - n` cannot overflow, contrary to `startIndex + n`. If without the danger of overflows the condition yields true, on the other hand, `startIndex + n` cannot overflow as it is smaller than `endIndex` (as the previous formulation of the condition shows).
* / Make all of partest work in the sbt buildStefan Zeiger2015-12-041-4/+5
|/ | | | | | | | | | | | - Fix the scoping of files/lib/*.jar. These files were not on the classpath when running partest from sbt. - Pass the same standard Java options to partest as from the command line. This requires new versions of scala-partest and scala-partest-interface. - Fix the classpath scanning in jvm/innerClassEnclMethodJavaReflection. It only worked for JARs and relative directories but not for absolute directory paths (which are produced by sbt).
* Merge pull request #4828 from retronym/topic/existential-containsLukas Rytz2015-11-163-0/+15
|\ | | | | Attacking exponential complexity in TypeMaps
| * Attacking exponential complexity in TypeMapsJason Zaugg2015-11-133-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Don't normalize existentials during the `contain`-s type map; `ExistentialType#normalize' calls contains internally and an exponential blowup ensues. - Ensure that the type map used in variance validation never returns modified types in order to avoid needless cloning of symbols. The enclosed test case still gets stuck in Uncurry, thanks to the way that `TypeMap#mapOver(List[Symbol])` recurses through the type first to check whether the type map would be an no-op or not. If not, it repeats the type map with cloned symbols. Doing the work twice at each level of recursion blows up the complexity. Removing that "fast path" allows the enclosed test to compile completely. As at this commit, it gets stuck in uncurry, which dealiases `s.List` to `s.c.i.List` within the type. Some more background on the troublesome part of `TypeMap`: http://lrytz.github.io/scala-aladdin-bugtracker/displayItem.do%3Fid=1210.html https://github.com/scala/scala/commit/f8b2b21050e7a2ca0f537ef70e3e0c8eead43abc
* | Merge pull request #4839 from SethTisue/reword-dependent-type-errorSeth Tisue2015-11-141-2/+2
|\ \ | | | | | | less confusing wording for a dependent method type error
| * | less confusing wording for a dependent method type errorSeth Tisue2015-11-071-2/+2
| |/ | | | | | | | | | | | | | | note to reviewers: the error messages in this file are over the place about whether they're called "parameter sections", or "argument lists", or what, so there's no point in being picky about that here for context see SI-823
* | Merge pull request #4809 from wpopielarski/delambdafy-multiple-outputsJason Zaugg2015-11-131-0/+73
|\ \ | | | | | | Multi output problem with delambdafied compilation
| * | Test addedwpopielarski2015-11-061-0/+73
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* | Merge pull request #4843 from SethTisue/scaladoc-little-d-pleaseJason Zaugg2015-11-139-9/+9
|\ \ | | | | | | it's Scaladoc, not ScalaDoc
| * | it's Scaladoc, not "ScalaDoc" or "Scala doc"Seth Tisue2015-11-129-9/+9
| |/ | | | | | | | | renaming the existing ScalaDoc and ScalaDocReporter classes might break stuff, sadly, but at least we can fix the rest
* | Merge pull request #4810 from ruippeixotog/fix-mutable-setlike-clearAdriaan Moors2015-11-121-0/+26
|\ \ | | | | | | SI-9497 Fix SetLike#clear() default implementation
| * | SI-9497 Fix SetLike#clear() default implementationRui Gonçalves2015-10-211-0/+26
| | | | | | | | | | | | When dealing with mutable collections, it is not safe to assume iterators will remain consistent when the collection is modified mid-traversal. The bug reported in SI-9497 is very similar to SI-7269, "ConcurrentModificationException when filtering converted Java HashMap". Then, only the `retain` method was fixed. This commit fixes `clear`, which had the same problem.
* | | Merge pull request #4804 from jvican/issue/9503Adriaan Moors2015-11-121-0/+1
|\ \ \ | |_|/ |/| | [SI-9503] Deprecate scala.collection.immutable.PagedSeq
| * | [SI-9503] Deprecate scala.collection.immutable.PagedSeqjvican2015-11-041-0/+1
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* | | SI-4950 Test reductionSom Snytt2015-10-252-13/+18
| |/ |/| | | | | | | | | A session test with extra filtering best expresses the intentions. No check file is required.
* | Merge pull request #4795 from SethTisue/windows-ciLukas Rytz2015-10-213-3/+11
|\ \ | |/ |/| improvements to Windows build & test situation
| * add comment about Cygwin trouble to test/partestSeth Tisue2015-10-081-0/+8
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| * fix t7634 to work on CygwinSeth Tisue2015-10-082-3/+3
| | | | | | | | | | | | | | | | | | | | | | this was failing because the expected output was: res1: List[String] = List(shello, world.) but the actual output was: res1: List[String] = List(shello, world., Picked up _JAVA_OPTIONS: -Duser.home=y:\jenkins) but the "Picked up..." part caused partest's filters feature to ignore the entire line (it doesn't anchor matches to start of line.) This was a tough one to track down.
* | Merge pull request #4798 from performantdata/issue/9513Seth Tisue2015-10-151-0/+42
|\ \ | | | | | | SI-9513 decrement "deleted" count in OpenHashMap.put() when slot reused
| * | Suppress unneeded import.Performant Data LLC2015-10-141-2/+2
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| * | SI-9513 decrement "deleted" count in OpenHashMap.put() when slot reusedPerformant Data LLC2015-10-101-0/+42
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* | Merge pull request #4771 from som-snytt/issue/9492-hereSeth Tisue2015-10-142-0/+46
|\ \ | |/ |/| SI-9492 REPL paste here doc
| * SI-9492 REPL paste here docSom Snytt2015-09-272-0/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simple here documentish syntax for REPL paste. This makes it easier to paste a block of script (as opposed to transcript). It also means you won't accidentally ctl-D out of the REPL and then out of SBT and then out of the terminal window. ``` scala> :paste < EOF // Entering paste mode (EOF to finish) class C { def c = 42 } EOF // Exiting paste mode, now interpreting. defined class C scala> new C().c res0: Int = 42 scala> :paste <| EOF // Entering paste mode (EOF to finish) |class D { def d = 42 } EOF // Exiting paste mode, now interpreting. defined class D scala> new D().d res1: Int = 42 scala> :quit ```
* | Merge pull request #4720 from retronym/ticket/9029Jason Zaugg2015-09-2912-5/+148
|\ \ | |/ |/| SI-9029 Fix regression in extractor patterns
| * SI-7850 Additional tests for name based patmatJason Zaugg2015-09-212-0/+28
| | | | | | | | Found these in an old review branch of mine.
| * SI-8989 Better error message for invalid extractor patternJason Zaugg2015-09-215-5/+51
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| * SI-9029 Fix regression in extractor patternsJason Zaugg2015-09-215-0/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The unified treatment of classical and named-based pattern matching does not correctly handle the generalization of "tuple capture". By "tuple capture", I mean: ``` scala> object Extractor { def unapply(a: Any): Option[(Int, String)] = Some((1, "2")) } defined object Extractor scala> "" match { case Extractor(x: Int, y: String) => } scala> "" match { case Extractor(xy : (Int, String)) => } warning: there was one deprecation warning; re-run with -deprecation for details scala> :warnings <console>:9: warning: object Extractor expects 2 patterns to hold (Int, String) but crushing into 2-tuple to fit single pattern (SI-6675) "" match { case Extractor(xy : (Int, String)) => } ^ ``` Name based pattern matching, new in Scala 2.11, allows one to deconstruct the elements that structurally resembles `ProductN`: ``` scala> class P2(val _1: Int, val _2: String) defined class P2 scala> object Extractor { def unapply(a: Any): Option[P2] = Some(new P2(1, "2")) } defined object Extractor scala> "" match { case Extractor(x: Int, y: String) => } ``` However, attempting to extract the `P2` in its entirety leads to an internal error: ``` scala> "" match { case Extractor(p2: P2) => } <console>:10: warning: fruitless type test: a value of type (Int, String) cannot also be a P2 "" match { case Extractor(p2: P2) => } ^ <console>:10: error: error during expansion of this match (this is a scalac bug). The underlying error was: type mismatch; found : P2 required: (Int, String) "" match { case Extractor(p2: P2) => } ^ ``` Note that this match was legal and warning free in 2.10. This commit avoids the hard-coded assumption that the "tuple capture" results in a `TupleN`, and instead keeps track of the product-ish type from which we extracted the element types. I have also opted not to limit the deprecation warning to `TupleN` extractors.
* | Improve presentation compilation of annotationsJason Zaugg2015-09-241-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A trio of problems were hampering autocompletion of annotations. First, given that that annotation is written before the annotated member, it is very common to end parse incomplete code that has a floating annotation without an anotatee. The parser was discarding the annotations (ie, the modifiers) and emitting an `EmptyTree`. Second, the presetation compiler was only looking for annotations in the Modifiers of a member def, but after typechecking annotations are moved into the symbol. Third, if an annotation failed to typecheck, it was being discarded in place of `ErroneousAnnotation`. This commit: - modifies the parser to uses a dummy class- or type-def tree, instead of EmptyTree, which can carry the annotations. - updates the locator to look in the symbol annotations of the modifiers contains no annotations. - uses a separate instance of `ErroneousAnnotation` for each erroneous annotation, and stores the original tree in its `original` tree.
* | Support completion in erroneous string interpolation.Jason Zaugg2015-09-241-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the code: ``` s"${fooo<CURSOR" ``` The parser treats `fooo` as a interpolator ID for the quote that we actually intend to end the interpolated string. Inserting a space (in addition to `__CURSOR__` that we already patch in to avoid parsing a partial identifier as a keyword), solves this problem.
* | Merge pull request #4757 from lrytz/t9375-2.11Lukas Rytz2015-09-227-7/+356
|\ \ | | | | | | [backport] SI-9375 add synthetic readResolve only for static modules
| * | [backport] SI-9375 add synthetic readResolve only for static modulesLukas Rytz2015-09-227-7/+356
| |/ | | | | | | | | | | | | | | | | For inner modules, the synthetic readResolve method would cause the module constructor to be invoked on de-serialization in certain situations. See the discussion in the ticket. Adds a comprehensive test around serializing and de-serializing modules.
* | Merge pull request #4725 from retronym/topic/completely-2.11Lukas Rytz2015-09-2112-43/+197
|\ \ | | | | | | Topic/completely 2.11
| * \ Merge remote-tracking branch 'origin/2.11.x' into topic/completely-2.11Jason Zaugg2015-09-1776-0/+39
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| * | | Fix REPL completion of symbolic identifiersJason Zaugg2015-09-101-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Recover part of the identifier that preceded the cursor from the source, rather than from the name in the `Select` node, which might contains an encoded name that differs in length from the one in source.
| * | | Fix completion for synthetic case modules and methodsJason Zaugg2015-09-102-3/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm pretty sure the `isSynthetic` call added in 854de25ee6 should instead be `isArtifact`, so that's what I've implemented here. `isSynthetic` used to also filter out error symbols, which are created with the flags `SYNTHETIC | IS_ERROR`. I've added an addition test for `isError`, which was needed to keep the output of `presentation/scope-completion-import` unchanged. The checkfile for `presentation/callcc-interpreter` is modified to add the additional completion proposals: synthetic companion objects.
| * | | Hide some completion candidates on the first TABJason Zaugg2015-09-091-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | When `foo.<TAB>`, assume you don't want to see the inherited members from Any_ and universally applicable extension methods like `ensuring`. Hitting <TAB> a second time includes them in the results.
| * | | More liberal matching in REPL autocompletionJason Zaugg2015-09-091-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the SHIFT-impaired: you can just write everything in lowercase, (whisper-case?) and we'll try to DWYM. We treat capital letters that you *do* enter as significant, they can't match a lower case letter in an identifier. Modelled after IntellIJ's completion. I still don't fall into this mode if you enter an exact prefix of a candidate, but we might consider changing that. ``` scala> classOf[String].typ<TAB> getAnnotationsByType getComponentType getDeclaredAnnotationsByType getTypeName getTypeParameters scala> classOf[String].typN<TAB> scala> classOf[String].getTypeName res3: String = java.lang.String scala> def foo(s: str<TAB> scala> def foo(s: String String StringBuffer StringBuilder StringCanBuildFrom StringContext StringFormat StringIndexOutOfBoundsException scala> def foo(s: string<TAB> scala> def foo(s: String String StringBuffer StringBuilder StringCanBuildFrom StringContext StringFormat StringIndexOutOfBoundsException ```
| * | | Camel Case and JavaBean completionJason Zaugg2015-09-081-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is just too useful to leave on the cutting room floor. ``` scala> classOf[String].enclo<TAB> scala> classOf[String].getEnclosing getEnclosingClass getEnclosingConstructor getEnclosingMethod scala> classOf[String].simpl<TAB> scala> classOf[String].getSimpleName type X = global.TTWD<TAB> scala> type X = global.TypeTreeWithDeferredRefCheck ``` I revised the API of `matchingResults` as it was clunky to reuse the filtering on accessibility and term/type-ness while providing a custom name matcher.
| * | | Sort completion proposalsJason Zaugg2015-09-031-0/+3
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| * | | Don't offer `asInstanceOf` et al as completions in a fresh REPLJason Zaugg2015-09-031-0/+4
| | | | | | | | | | | | | | | | | | | | Trying harder to keep the synthetic interpretter wrapper classes behind the curtain
| * | | Add the prefix the autocompletion results (Scope-, TypeMember)Jason Zaugg2015-09-031-0/+3
| | | | | | | | | | | | | | | | | | | | This makes life easier for clients of these APIs, we use this to avoid passing this around in the wrapper result `TypeMembers`.
| * | | Use the presentation compiler to drive REPL tab completionJason Zaugg2015-09-021-0/+109
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The old implementation is still avaiable under a flag, but we'll remove it in due course. Design goal: - Push as much code in src/interactive as possible to enable reuse outside of the REPL - Don't entangle the REPL completion with JLine. The enclosed test case drives the REPL and autocompletion programatically. - Don't hard code UI choices, like how to render symbols or how to filter candidates. When completion is requested, we wrap the entered code into the same "interpreter wrapper" synthetic code as is done for regular execution. We then start a throwaway instance of the presentation compiler, which takes this as its one and only source file, and has a classpath formed from the REPL's classpath and the REPL's output directory (by default, this is in memory). We can then typecheck the tree, and find the position in the synthetic source corresponding to the cursor location. This is enough to use the new completion APIs in the presentation compiler to prepare a list of candidates. We go to extra lengths to allow completion of partially typed identifiers that appear to be keywords, e.g `global.def` should offer `definitions`. Two secret handshakes are included; move the the end of the line, type `// print<TAB>` and you'll see the post-typer tree. `// typeAt 4 6<TAB>` shows the type of the range position within the buffer. The enclosed unit test exercises most of the new functionality.
| * | | SI-5408 Prompt after incomplete script pasteSom Snytt2015-09-022-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Transcript paste mode invites the user to keep typing like regular paste mode, but really you must enter more transcript. This matters if the script ends in the middle of incomplete code that the user wants to complete by hand. Previously, ``` scala> scala> def f() = { // Detected repl transcript paste: ctrl-D to finish. // Replaying 1 commands from transcript. scala> def f() = { scala> scala> def f() = { // Detected repl transcript paste: ctrl-D to finish. | } // Replaying 1 commands from transcript. scala> def f() = { } f: ()Unit ``` Now, ``` scala> scala> def f() = { // Detected repl transcript. Paste more, or ctrl-D to finish. // Replaying 1 commands from transcript. scala> def f() = { | 42 | } f: ()Int scala> f() res0: Int = 42 ```
| * | | Update power mode bannerSom Snytt2015-09-028-40/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The classic banner is available under -Dscala.repl.power.banner=classic. ``` scala> :power Power mode enabled. :phase is at typer. import scala.tools.nsc._, intp.global._, definitions._ Try :help or completions for vals._ and power._ ```
* | | | Merge pull request #4716 from Ichoran/issue/9388Lukas Rytz2015-09-214-4/+55
|\ \ \ \ | | | | | | | | | | SI-9388 Fix Range behavior around Int.MaxValue
| * | | | SI-9388 Fix Range behavior around Int.MaxValueRex Kerr2015-09-194-4/+55
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | terminalElement (the element _after_ the last one!) was used to terminate foreach loops and sums of non-standard instances of Numeric. Unfortunately, this could result in the end wrapping around and hitting the beginning again, making the first element bad. This patch fixes the behavior by altering the loop to end after the last element is encountered. The particular flavor was chosen out of a few possibilities because it gave the best microbenchmarks on both large and small ranges. Test written. While testing, a bug was also uncovered in NumericRange, and was also fixed. In brief, the logic around sum is rather complex since division is not unique when you have overflow. Floating point has its own complexities, too. Also updated incorrect test t4658 that insisted on incorrect answers (?!) and added logic to make sure it at least stays self-consistent, and fixed the range.scala test which used the same wrong (overflow-prone) formula that the Range collection did.