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Diffstat (limited to 'test/files/run/regularpatmat.scala.disabled')
| -rw-r--r-- | test/files/run/regularpatmat.scala.disabled | 729 |
1 files changed, 729 insertions, 0 deletions
diff --git a/test/files/run/regularpatmat.scala.disabled b/test/files/run/regularpatmat.scala.disabled new file mode 100644 index 0000000000..d8e244d03b --- /dev/null +++ b/test/files/run/regularpatmat.scala.disabled @@ -0,0 +1,729 @@ +// Burak's test suite for regular pattern matching + +//import java.lang.System; // to avoid name clash with .NET's library + +object Test { + def main(args: Array[String]): Unit = { + Console.println("pretest"); + val L = List(1,2,3); + scala.testing.UnitTest.assertEquals( L, L match { case List(xs@_*) => xs; } ) ; + + testWR.main(args); + testWS.main(args); + testWT.main(args); + testWV.main(args); + //testWW.main(args); + testBK.main(args); + testBL.main(args); + testBM.main(args); + testBN.main(args); + testBO.main(args); + testMZ.main; + //testNN.main; + //testBugSequenceApply.main; + } +} + +// contains 17 visitors plus X + +// analyzer related (no execution) +object bug179 { + case class One(); + object Foo { + def test(xs: List[Any]) = xs match { + case List(((((One(), One())*) | (One(), One())), One())) => + Console.println("case") + case _ => + Console.println("default"); + } + } +} +// testW? are for recognition only ( no variables ) +// testB? are for variables binding + +object values { // test values reused in nearly all test cases + + val s0: List[Char] = Nil ; + val s1: List[Char] = 'a'::'b'::'c'::Nil ; + val s2: List[Char] = 'a'::'b'::'c'::s1 ; + val s3: List[Char] = 'a'::'a'::'a'::Nil ; + val s4: List[Char] = 'b'::'c'::Nil ; + val s5: List[Char] = 'b'::Nil ; + val s6: List[Char] = 'b'::'a'::'a'::'a'::Nil ; + + val s7: List[Int] = 1::2::7::Nil ; + val s8: List[Int] = 1::0::1::0::Nil; + val s9: List[Int] = Nil ; + + val s10: List[Char] = '7'::'0'::'1'::'.'::'2'::'4'::Nil ; + +} + +// matching without binding + +// 2do case [ 'a'; x; y ] => 100 +// case [ z @ ('a'; x; y) ] => 100 +// 2do case [ 'a'*; x @ ( _;('a'; 'b')* ); y @ 'b'* ] => 100 +// case _ => 321 // 20022 // this never happens + +object testBK { + + import values._ ; + import scala.testing.UnitTest._ ; + + def doit1(e: List[Char]): Int = e match { + case List( 'a'*, x @ ( 'a',('a', 'b')* ), y @ ('b'*) ) => 100 + case List( _ * ) => 321 + } + + def test1: Unit = { + Console.println("testBK"); + //test[List[Char],Int]( doit1, s0, 321); + assertEquals( doit1( s0 ), 321); + assertEquals( doit1( s1 ),321); + assertEquals( doit1( s2 ),321); + assertEquals( doit1( s3 ),100); + assertEquals( doit1( s4 ),321); + assertEquals( doit1( s5 ),321); + assertEquals( doit1( s6 ),321) + } + + def main(args: Array[String]): Unit = { + test1; + } + +} + +// tests with binding + +object testBL { + + import scala.testing.UnitTest._ ; + + def preTest(a:String,b:String):boolean = (a==b); + + def doit(x: List[String]): String = x match { + case List( z @ "John" ) => z + } + + // BEWARE: main type should be specified... + // often, last thing is not () then you have a problem + + def main(args: Array[String]): Unit = { + val a = "John"; + val b = "John"; + + assertEquals(a == b, true); + assertEquals(doit(List(b)), "John") + } +} + +object testBM { + + import scala.testing.UnitTest._ ; + import values._ ; + + def doit1(e: List[Char]): List[Char] = e match { + case List( 'a'*, x @ ( 'a',('a', 'b')* ), y @ ('b'*) ) + => { x.toList } + + case List( 'a'*, x @ (('a', 'b')*) , y @ (('a','b','c') *) ) + => { y.toList } + + case List( _ * ) + => Nil + } + + def test1: Unit = { + Console.println("testBM"); + assertEquals( doit1( s0 ), Nil); + assertEquals( doit1( s1 ), s1); + assertEquals( doit1( s2 ), s2); + + assertEquals( doit1( s3 ), List('a')); + assertEquals( doit1( s4 ), Nil); + assertEquals( doit1( s5 ), Nil); + assertEquals( doit1( s6 ), Nil); + + val t7:List[Char] = 'a'::'a'::'a'::'b'::'b'::'b'::Nil; + //val t7ex:List[Char] = 'a'::'a'::'b'::Nil; // with longest match policy + + assertEquals( doit1( t7 ), List('a') ); + } + + def main(args: Array[String]) = { + test1 + } + +} + +object testBN { + + import scala.testing.UnitTest._ ; + import values._ ; + + class testClass; + + case class testA(arg: List[Char]) extends testClass; + + def doit1(e: testClass): List[Char] = e match { + case testA(List( 'a', x, y )) => x::y::Nil + case _ => Nil + } + + def test1:Unit = { + Console.print("BN preTest: "); + Console.println(Nil == Nil); + Console.println("testBN"); + + assertEquals(doit1(testA(s0)), Nil); + assertEquals(doit1(testA(s1)), 'b'::'c'::Nil); + assertEquals(doit1(testA(s2)), Nil); + assertEquals(doit1(testA(s3)), 'a'::'a'::Nil); + assertEquals(doit1(testA(s4)), Nil); + assertEquals(doit1(testA(s5)), Nil); + assertEquals(doit1(testA(s6)), Nil); + } + + def main(args: Array[String]) = { + test1 + } + +} + +object testBO { + + // example suggested by Matthias + import scala.testing.UnitTest._ ; + + case class Person(firstname: String, lastname: String); + + def onlyJohn(db: List[Person]): List[String] = db match { + case List(Person("John", lastname)) => lastname::Nil + case _ => Nil + } + + /** first longest match policy -> the star is greedy/hungry/... + */ + def searchFirstJohn(db: List[Person]): String = db match { + case List( _ *, Person("John", lastname), _ * ) => lastname + case _ => "<not found>" + } + + /** first longest match policy -> star is a greedy/hungry + */ + def searchJohns(db: List[Person]): List[String] = db match { + case List( _ *, Person("John", lastname), rest@(_ *)) => { + //Console.print("before is : " + before); + lastname::searchJohns(rest.toList) + } + case _ => Nil + } + + def main(args: Array[String]): Unit = { + val p1 = Person("Albert", "Camus"); + val p2 = Person("Henry", "Miller"); + val p3 = Person("John", "Le Carre"); + val p4 = Person("Herbert", "Franke"); + val p5 = Person("John", "Smith"); + val p6 = Person("William", "Gibson"); + + val db: List[Person] = p1::p2::p3::p4::p5::p6::Nil; + + val db2: List[Person] = p3::Nil; + + Console.println("testBO"); + + assertEquals(onlyJohn(db), Nil); + assertEquals(onlyJohn(db2), "Le Carre"::Nil); + assertEquals(searchFirstJohn(db), "Le Carre"); + assertEquals(searchFirstJohn(db2), "Le Carre"); + assertEquals(searchJohns(db), "Le Carre"::"Smith"::Nil); + assertEquals(searchJohns(db2), "Le Carre"::Nil); + } + +} + +object testWR { + + import values._ ; + import scala.testing.UnitTest._ ; + + def doit1(e: List[Char]): Int = e match { + case List( 'a', 'b', 'c' ) => 100 + case _ => 321 + } + + def test1: Unit = { + Console.println("testWR_1"); + assertEquals( doit1( s0 ), 321); + assertEquals( doit1( s1 ), 100); + assertEquals( doit1( s2 ), 321); + assertEquals( doit1( s3 ), 321); + assertEquals( doit1( s4 ), 321); + assertEquals( doit1( s5 ), 321); + assertEquals( doit1( s6 ), 321) + } + + def doit2(e: List[Char]):Int = e match { + case List( ('a', 'b','c')? ) => 1000 + case _ => 321 + } + + def test2: Unit = { + Console.println("testWR_2"); + assertEquals( doit2( s0 ), 1000); + assertEquals( doit2( s1 ), 1000); + assertEquals( doit2( s2 ), 321); + assertEquals( doit2( s3 ), 321); + assertEquals( doit2( s4 ), 321); + assertEquals( doit2( s5 ), 321); + assertEquals( doit2( s6 ), 321); + } + + def doit3(e: List[Char]): String = e match { + case List( ('a', 'a','a')? ) => "ok" + case _ => "fail" + } + + def test3: Unit = { + Console.println("testWR_3"); + assertEquals(doit3(s0), "ok"); + assertEquals(doit3(s1), "fail"); + assertEquals(doit3(s2), "fail"); + assertEquals(doit3(s3), "ok"); + assertEquals(doit3(s4), "fail"); + assertEquals(doit3(s5), "fail"); + assertEquals(doit3(s6), "fail"); + } + + def doit4(e: List[Char]): String = e match { + case List( ('a'|'b')*,('a'|'b'|'c')+ ) => "ga!!!!" + case _ => "gu" + } + + def test4: Unit = { + Console.println("testWR_4"); + assertEquals( doit4( s0 ), "gu"); + assertEquals( doit4( s1 ), "ga!!!!"); + assertEquals( doit4( s2 ), "ga!!!!"); + assertEquals( doit4( s3 ), "ga!!!!"); + assertEquals( doit4( s4 ), "ga!!!!"); + assertEquals( doit4( s5 ), "ga!!!!"); + assertEquals( doit4( s6 ), "ga!!!!"); + } + + def doit5(e: List[Int]): String = e match { + case List( (0|1)+ ) => "binary" + case _ => "not binary" + } + + def test5: Unit = { + Console.println("testWR_5"); + assertEquals( doit5( s7 ), "not binary"); + assertEquals( doit5( s8 ), "binary"); + assertEquals( doit5( s9 ), "not binary"); + } + + // { ('0'..'9')*;'.';('0'..'9');('0'..'9')* ] + def doit6(e: List[Char]): String = e match { + case List( ('0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9')*, + '.', + ('0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'), + ('0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9')* ) + + => "decimal number" + case _ => "not decimal" + } + + def test6: Unit = { + Console.println("testWR_6"); + assertEquals(doit6(s3), "not decimal"); + assertEquals(doit6(s10), "decimal number"); + } + + def test8: Unit = { + Console.println("testWR_8"); + + assertTrue( List('d','c') match { + case List('a'*, 'd'|'e', 'c'*) => true + case _ => false + }); + } + + def test7:Unit = { + Console.println("testWR_7"); + assertEquals( List(1,2) match { + case List(1,(3*,2))=> true; // test normalization (pattern normalizer) + case _ => false; + }, true); + } + + def main(args: Array[String]): Unit = { + test1; + test2; + test3; + test4; + test5; + test6; + test7; + test8; + } +} + +object testWS { + + import values._ ; + import scala.testing.UnitTest._ ; + + /* strings: + + "blabla" == [ "bla";"bla" ] == [ 'b';'l';'a';'b';'l';'a' ] + + [ "blabla";'x';'y'? ] == [ ('b';'l';'a';'b';'l';'a'); 'x'; 'y'? ] + + */ + + /* + def isIdentifierStart(c:char) ; + + case [ ... ; _isIdentifierStart_ ; ... ] + + calls method is..., needs to have type (elementType)Boolean + + translated to pattern + + [ ... ; Apply(is..., Tree.Empty) ; ... ] + + */ + + /* for tree automata: + + [ t0; t1; ...; tn ] with ti = labeli ( argsi ) + + gets translated to + + [ _isTree$0_ ; _isTree$1_ ; ... ; _isTree$n_ ] + + where isTree$i( t ) = t.is[ labeli ] ... (algebraic matcher) + + special case: sequences + + [ ...; seq ; ... ] where seq = [ ... ] + + gets translated to + + [ ...; _seq$0_ ; ...] with seq$0( s ) = t.is[ Sequence ] and + seq$0match( s.newIterator ) + + subroutines return + 1) d'abord true or false, + 2) later ( true|false, environment ) + assume order on variables, enviroment is a tuple/sequence + */ + + def doit1(e: List[Char]):Int = e match { + case List( 'a', 'b', 'c' ) => 100 + case List( ('a', 'b','c')? ) => 1004 + case List( ('a', 'a','a')? ) => 50 + case List( ('a'|'b')*,('a'|'b') ) => 700 + case _ => 321 + }; + + def test1: Unit = { + Console.println("testWS"); + assertEquals( doit1( s0 ), 1004); + assertEquals( doit1( s1 ), 100); + assertEquals( doit1( s2 ), 321); + assertEquals( doit1( s3 ), 50); + assertEquals( doit1( s4 ), 321); + assertEquals( doit1( s5 ), 700); + assertEquals( doit1( s6 ), 700); + } + + def main(args: Array[String]): Unit = { + test1; + } + +} + +object testWT { + + import values._ ; + import scala.testing.UnitTest._ ; + + def doit1(e: List[Char]): Int = e match { + case List('a', _, _) => 100 + case List(_ *) => 321 + case _ => 20022 // this never happens + } + + def test1: Unit = { + Console.println("testWT"); + assertEquals( doit1( s0 ),321); + assertEquals( doit1( s1 ),100); + assertEquals( doit1( s2 ),321); + assertEquals( doit1( s3 ),100); + assertEquals( doit1( s4 ),321); + assertEquals( doit1( s5 ),321); + assertEquals( doit1( s6 ),321) + } + + def main(args: Array[String]): Unit = { + test1; + } + +} +object testWV { + + import values._ ; + import scala.testing.UnitTest._ ; + + class testClass; + + case class testA( arg:List[Char] ) extends testClass; + + def doit1(e: testClass):Int = e match { + case testA(List( 'a', 'b', 'c' )) => 100 + case testA(List( ('a', 'b','c')? )) => 1004 + case testA(List( ('a', 'a','a')? )) => 50 + case testA(List( ('a'|'b')*,('a'|'b') )) => 700 + case testA( _ ) => 321 + } + + def test1: Unit = { + Console.println("testWV"); + assertEquals(doit1(testA(s0)), 1004); + assertEquals(doit1(testA(s1)), 100); + assertEquals(doit1(testA(s2)), 321); + assertEquals(doit1(testA(s3)), 50); + assertEquals(doit1(testA(s4)), 321); + assertEquals(doit1(testA(s5)), 700); + assertEquals(doit1(testA(s6)), 700); + } + + def main(args: Array[String]) = { + test1 + } + +} +/* +object testWW { + + import values._ ; + + import scala.testing.UnitTest._ ; + + class testClass; + case class testA( arg:List[Char] ) extends testClass; + + def doit1(e: List[testClass]):Int = e match { + + case List( testA(List()), testA( List( 'a', 'b' )) ) => 100 + case _ => 321 + + }; + + def test1:Unit = { + val x1 = List( testA(s0) ); + + Console.println("testWW"); + + assertEquals( doit1( x1 ), 321 ); + + val x2 = List( testA(Nil), testA('a'::'b'::Nil) ); + + assertEquals( doit1( x2 ), 100 ); + + } + + def main( args:Array[String] ) = { + test1; + } + +} +*/ +object testMZ { + import scala.testing.UnitTest.assertEquals ; + class Expr; + case class One(xs: List[Expr]) extends Expr; + case class Two() extends Expr; + def testFoo(xs: List[Expr]) = xs match { //bug#132 + case List(Two()?,a,Two()?) => "a = " + a; + case List(Two()*,b,Two()*) => "b = " + b; + case List(_*) => "no match"; + } + case class OneN(); + def bind(xs: List[Any]):String = xs match { // bug#133b + case List(x@(OneN()*), y@(OneN())) => "case"; + case _ => "default"; + } + case class On(); + case class Tw(); + def testBar(xs: List[Any]) = xs match { // bug#180 + case List(((On(), Tw())* | (On(), On())), On()) => "caseBar" + case _ => "default"; + } + + + def mat195(x:Expr) = x match { // bug#195 + case One(x@List(_*)) => + "x = " + x; + + case _ =>"default"; + + } + + def mat196(xs: List[Any]) = xs match { // bug#196 + case List(b@(()|())) => + "case, b = " + b; + + case _ =>"default"; + + } + + def mat398(xs:List[Any]) = xs match { // bug#398 + case List(1) => "one" + case x::xs => "two" + } + + def mat406() = { + class Type; + case class A() extends Type; + case class B() extends Type; + case class C() extends Type; + + def foo(x: Type, y: Type): String = Pair(x, y) match { + case Pair(A(), A()) + | Pair(A(), B()) + | Pair(B(), A()) + | Pair(B(), B()) => "3" + case Pair(C(), C()) => "4" + case Pair(A(), _) + | Pair(B(), _) => "7" + case _ => "8" + } + + foo(A(), C()) + } + + def mat441() = { + val tata = 1; + val titi = 0.8 + Math.random(); + try { + tata match { + case 1 if (titi < 0.5) => "a" + case 0 | 1 => "b" + } + } catch { + case _ => "c" + } + } + + /* this will crash + def matSymbolCloning = { + 2 match { + case 3 | 4 => + class Foo extends scala.xml.Atom[Int](3) { + def bar = 7; + } + null + } + } + */ + + def main:Unit = { + Console.println("testMZ - bugs #132 #133b #180 #195 #196 #398 #406 #441"); + assertEquals(testFoo( List(Two(),Two(),Two(),Two()) ),"b = Two"); + assertEquals(testFoo( List(Two(),Two(),Two()) ),"a = Two"); + assertEquals(testFoo( List(Two(),Two()) ),"a = Two"); + assertEquals(testFoo( List(Two()) ),"a = Two"); + assertEquals(testFoo( List() ),"no match"); + assertEquals(bind( List(OneN(),OneN()) ),"case"); + assertEquals(testBar( List() ),"default"); + assertEquals(testBar( List(On()) ),"caseBar"); + assertEquals(testBar( List(On(), On())), "default"); + assertEquals(testBar( List(On(), On(), On()) ),"caseBar"); + assertEquals(testBar( List(On(), On(), On(), On()) ),"default"); + assertEquals(testBar( List(On(), On(), On(), On(), On()) ),"default"); + assertEquals(mat195( One(List(Two(),Two())) ),"x = List(Two,Two)"); + assertEquals(mat195( One(List()) ),"x = List()"); + assertEquals(mat195( Two() ),"default"); + assertEquals(mat196( List(1) ),"default"); + assertEquals(mat196( List() ),"case, b = List()"); + assertEquals(mat398( List(2) ),"two"); + assertEquals(mat398( List(2) ),"two"); + assertEquals(mat406(), "7"); + assertEquals(mat441(), "b"); + () + } + +} +/* +object testNN { + import scala.testing.UnitTest._ ; + abstract class K; + case class F(x:K*) extends K; + case class G() extends K; + + def mtch(k:K):boolean = k match { + case F(F(G()*),G(),F(G()*)) => true; + case _ => false; + } + + def main:Unit = { + Console.println("testNN"); + assertEquals(mtch( F(F(G()),G(),F(G()))), true); + assertEquals(mtch( F(F(),G(),F(G(),G(),G(),G())) ), true); + assertEquals(mtch( G() ), false); + assertEquals(mtch( F(G()) ), false); + } +} +*/ +object testNO { // this does not need to be run, only compiled + + trait Operator; + case class Increment() extends Operator; + case class Decrement() extends Operator; + + trait Expression { + def eval = this match { + case Operation (v: Value, o: Increment) => v + case Operation (v: Value, d: Decrement) => v + } + } + + case class Value() extends Expression; + case class Operation (e: Expression, o: Operator) extends Expression; + + +} + +/** see comments in scala.tools.scalac.transformer.matching.PatternMatcher::isSeqApply 2005-02-17 + */ + +/* +object testBugSequenceApply { + + val x = List(1,2,3); + + case class ThreeBars extends Seq[Int] { + override def length = 3; + def elements = x.elements; + def apply(i:Int) = x.apply(i); + } + + // this works + def main:Unit = { + Console.print("testBugSequenceApply "); + val z: Seq[Int] = new ThreeBars(); + Console.print(z match { + case Seq(1,2,3) => "hello" // but ThreeBars is a case class... + }); + + Console.print(ThreeBars() match { + case Seq(1,2,3) => " hello" // but ThreeBars is a case class... + }); + } +} +*/ |