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* Fix problem with IndexedView.iterator.lengthMartin Odersky2016-07-311-4/+3
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* More systematic treatement of IndexedViewMartin Odersky2016-07-301-26/+61
| | | | | Followinf @szeiger's suggestion, equip IndexView with optimized operations for map/drop/take.
* Index members of a class before evaluating its parentsMartin Odersky2016-07-291-0/+26
| | | | | | | | | | | | | Avoids missing member in tangledCompanion.scala, which is a minimization of intermittent failures in CollectionStrawMan6. Intermittent, because it depended on order of compilation. CollectionTests have to be compiled together with but before CollectionStrawMan6 (this was _sometimes_ the case because partest did not honor indicated compilation order so far). I.e. dotc CollectionTests_2.scala CollectionStrawMan6_1.scala would trigger the error. tangledCompanion.scala captures the dependencies in a single file.
* Drop on LinearSeq needs to return collection of same type as it was called on.Martin Odersky2016-07-291-8/+38
| | | | This is achieved by putting it into a new trait, LinearSeqLike.
* Tweaks to strawmanMartin Odersky2016-07-282-92/+112
| | | | | | | - Add proper :: to lists - Move some methods to IterableOps in order to keep Iterable clean - Rename knownLength to knownSize - Add some implentations for performance and completeness
* Make colltest6 self-containedMartin Odersky2016-07-272-1/+2
| | | | Following the other colltests, put each in a separate package.
* Move test from pos to runMartin Odersky2016-07-271-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Test generated code before but fails with verify error at runtime. Here's the message: Exception in thread "main" java.lang.VerifyError: Bad type on operand stack Exception Details: Location: D$.<init>()V @2: invokedynamic Reason: Type uninitializedThis (current frame, stack[1]) is not assignable to 'D$' Current Frame: bci: @2 flags: { flagThisUninit } locals: { uninitializedThis } stack: { uninitializedThis, uninitializedThis } Bytecode: 0x0000000: 2a2a ba00 1f00 00b7 0022 2ab3 0024 b1 at Test$.main(t3048.scala:13) at Test.main(t3048.scala) With the fix in last commit, test causes backend to crash with java.lang.AssertionError: assertion failed: val <none> at scala.Predef$.assert(Predef.scala:165) at scala.tools.nsc.backend.jvm.BCodeHelpers$BCInnerClassGen$class.assertClassNotArray(BCodeHelpers.scala:214) at scala.tools.nsc.backend.jvm.BCodeHelpers$BCInnerClassGen$class.assertClassNotArrayNotPrimitive(BCodeHelpers.scala:219) at scala.tools.nsc.backend.jvm.BCodeHelpers$BCInnerClassGen$class.getClassBTypeAndRegisterInnerClass(BCodeHelpers.scala:238) at scala.tools.nsc.backend.jvm.BCodeSkelBuilder$PlainSkelBuilder.getClassBTypeAndRegisterInnerClass(BCodeSkelBuilder.scala:51) at scala.tools.nsc.backend.jvm.BCodeHelpers$BCInnerClassGen$class.internalName(BCodeHelpers.scala:210)
* Fix problem related to cbn parameters in supercallsMartin Odersky2016-07-271-5/+5
| | | | | | | | | | | The closures generated by elimByName did not get the InSuperCall flag set. This caused problems in lambda lift which led to a verify error for the new version CollectionStrawMan6. That version replaces explicit function parameters in class LazyList by by-name parameters. Also: Clarify logic for liftLocals in LambdaLift (liftLocals caused the immediate problem but was in the end not to blame).
* Rename fromLikeIterable -> fromIterableWithSameElemTypeMartin Odersky2016-07-272-24/+24
| | | | Makes it clearer what it is. Also, fixed check file.
* Fix substDealiasMartin Odersky2016-07-271-0/+11
| | | | | | substDealias did not follow aliases when the prefix of a typeref changed under substitution. This was exhibited by a bug in extensionMethods which was first discovered in CollectionStrawMan6 and was minimized in extmethods.
* Improve dropMartin Odersky2016-07-271-10/+3
| | | | | By making LinearSeq an IterableLike, we can use tail-recursion on drop.
* Further extension with LazyListMartin Odersky2016-07-263-105/+594
| | | | | Demonstrates how to integrate lazy non-view collections in the framework.
* Add arrays to collection strawmanMartin Odersky2016-07-253-0/+912
| | | | | This PR investigates what it takes to extend CollectionStrawMan5 to arrays.
* Adress reviewers commentsMartin Odersky2016-07-251-1/+1
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* Fix #1385: Temporarily lift 22 limit for functionsMartin Odersky2016-07-251-0/+7
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* Fix #1401: Make sure all refs are forwardedMartin Odersky2016-07-211-0/+25
| | | | | | | | | | | | Faced with recursive dependencies through self types, we might have to apply `normalizeToClassRefs` to a class P with a parent that is not yet initialized (witnessed by P's parents being Nil). In that case we should still execute forwardRefs on P, but we have to wait in a suspension until P is initialized. This avoids the problem raised in #1401. I am still not quite sure why forwardRefs is needed, but it seems that asSeenFrom alone is not enough to track the dependencies in this case.
* Merge pull request #1395 from dotty-staging/fix-#1378odersky2016-07-211-0/+3
|\ | | | | Fix #1378: Propagate more knowledge of result type into applications
| * Proparage function result constrains when inferring parameter typesMartin Odersky2016-07-161-0/+3
| | | | | | | | | | | | | | | | If an application has functions with implicit parameter types we need to be more aggressive about propagating knowledge of the expected result type into the constraint. Fixes #1378.
* | Merge pull request #1402 from dotty-staging/fix-wildcard-protosGuillaume Martres2016-07-191-0/+11
|\ \ | | | | | | Fix wildcard protos
| * | Add test caseMartin Odersky2016-07-191-0/+11
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* | | Merge pull request #1400 from dotty-staging/fix/hk-reduce-typerefsodersky2016-07-192-0/+22
|\ \ \ | |/ / |/| | HK reduction: Remove special-case for typerefs
| * | HK reduction: Remove special-case for typerefsGuillaume Martres2016-07-181-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The special case: case stripped: TypeRef => stripped.symbol.is(BaseTypeArg) is wrong because you might still want to reduce applications involving TypeRefs which are not base class parameters, like in: class Foo[A] type Alias[X] = Foo[X] val x: Alias[Int] = ??? `Alias` is a TypeRef so before this commit `Alias[Int]` was never reduced to `Foo[Int]`. It should have been: case stripped: TypeRef if stripped.symbol.is(BaseTypeArg) => true But even this is incorrect: it assumes that we can always safely reduce HK applications involving base class parameters, this is not the case when the parameter kind is different from the rhs kind as illustrated by `i1181c.scala`. We fix this by simply dropping the special case.
| * | Better test for #1181Guillaume Martres2016-07-181-0/+11
| |/ | | | | | | | | | | | | | | | | | | Now that we implement partial higher-order unification (SI-2712 fix) i1181.scala will compile even if `Alias[Int]` gets dealiased to `(Int, Int)` because we can unify the latter with `M[_]` where `M = [X] -> (Int, X)`. The new test will only succeed if `Alias[Int, Int]` is not dealiased because we will never unify `Foo[Int]` with `M[_,_]`.
* | Merge pull request #1393 from dotty-staging/fix-#1386odersky2016-07-181-0/+4
|\ \ | | | | | | Fix #1386: Reduce double def errors
| * | Refine disambiguation logic and add test case.Martin Odersky2016-07-151-0/+4
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* | | Merge pull request #1399 from dotty-staging/fix-patmat-typingodersky2016-07-182-0/+25
|\ \ \ | | | | | | | | Fix typing of match expressions
| * | | Fix test error annotationMartin Odersky2016-07-181-1/+1
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| * | | Add test caseMartin Odersky2016-07-181-0/+24
| | | | | | | | | | | | | | | | Also fix reviewers comments about `firstParent`
| * | | Fix typing of match expressionsMartin Odersky2016-07-171-0/+1
| | |/ | |/| | | | | | | | | | Allow matches between unapply types and selector type where a possible overlap might exist.
* | | Merge pull request #1389 from dotty-staging/fix-#1381odersky2016-07-185-6/+80
|\ \ \ | |/ / |/| | Changes to overloading
| * | Make run tests for #1381.Nicolas Stucki2016-07-183-36/+66
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| * | Add testsMartin Odersky2016-07-153-0/+39
| | | | | | | | | | | | | | | | | | Adds the original test form #1381. t2660 looks similar. Also adds some unrelated tests I had in the queue that now compile.
| * | Additions to testMartin Odersky2016-07-151-0/+9
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| * | Changes to overloadingMartin Odersky2016-07-151-6/+2
| | | | | | | | | | | | | | | | | | Fix #1381: Overloading is now changed so that we first try without implicit searches. Only if that leaves no applicable alternatives we try again with implicit search turned on. This also fixes test case t2660, which got moved from neg to pos.
* | | Merge pull request #1377 from dotty-staging/#1365odersky2016-07-151-0/+13
|\ \ \ | | | | | | | | Fix 1365: Fix bindings in patterns
| * | | Fix 1365: Fix bindings in patternsMartin Odersky2016-07-091-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | We need to compare pattern types with expected types in order to derive knowledge about pattern-bound variables. This is done use the mechanism of gadt bounds.
* | | | Merge pull request #1291 from nicolasstucki/implement-scala-dynamicDmitry Petrashko2016-07-1534-0/+462
|\ \ \ \ | | | | | | | | | | Add scala.Dynamic support.
| * | | | Fix TypeOps.featureEnabled ignoring import disabling.Nicolas Stucki2016-07-071-0/+10
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| * | | | Add scala.Dynamic language feature check.Nicolas Stucki2016-07-072-0/+10
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| * | | | Fix #657: Add scala.Dynamic support.Nicolas Stucki2016-07-0732-0/+442
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* | | | Merge pull request #1334 from dotty-jvican/implement-no-predef-no-importDmitry Petrashko2016-07-153-0/+9
|\ \ \ \ | |_|/ / |/| | | Implement -Yno-predef and -Yno-imports
| * | | Implement -Yno-predef and -Yno-importsjvican2016-06-293-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | * Implement flags -Yno-predef and -Yno-imports * Add unit tests for both
* | | | Merge pull request #1343 from dotty-staging/change-hk-direct2odersky2016-07-1544-76/+404
|\ \ \ \ | | | | | | | | | | Direct representation of higher-kinded types
| * | | | Bounds of type lambdas compare contravariantlyMartin Odersky2016-07-152-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable checking of bounds when comparing type lambdas. This invalidates a pattern used in t2994 and potentially other code, where a bound [X] -> Any is used as a template that is a legal supertype of all other bounds. The old behavior is still available under language:Scala2.
| * | | | Add test case for hk bounds checkingMartin Odersky2016-07-141-0/+23
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| * | | | Fix bounds checking of hk applied typedMartin Odersky2016-07-143-7/+37
| | | | | | | | | | | | | | | | | | | | | | | | | Previous logic could only handle classes as constructors. Also, address other reviewers comments.
| * | | | Allow hk parameters in lower boundsMartin Odersky2016-07-133-11/+15
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| * | | | Enable test for fixed #1181: Typer should preserve aliases in TypeTreesGuillaume Martres2016-07-121-0/+0
| | | | | | | | | | | | | | | | | | | | This was fixed two commits ago.
| * | | | Drop restriction to 2nd order hk typesMartin Odersky2016-07-124-6/+55
| | | | | | | | | | | | | | | | | | | | Allow hk type parameters to be higher kinded themselves.
| * | | | Avoid dealiasing on type applicationMartin Odersky2016-07-124-13/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When applying a type alias of a type lambda, keep the original application instead of reducing. But reduce anyway if - the reduced type is an application where the type constructor has the same kind as the original type constructor, or - some of the arguments are wildcards.
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