diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/files/run/icode-reader-dead-code.check | 19 | ||||
| -rw-r--r-- | test/files/run/icode-reader-dead-code.scala | 82 | ||||
| -rw-r--r-- | test/files/run/repl-javap-app.check | 14 | ||||
| -rw-r--r-- | test/files/run/repl-javap-app.scala | 11 | ||||
| -rw-r--r-- | test/files/run/t7974.check | 29 | ||||
| -rw-r--r-- | test/files/run/t7974/Test.scala | 2 | ||||
| -rw-r--r-- | test/junit/scala/collection/IndexedSeqOptimizedTest.scala | 16 |
7 files changed, 137 insertions, 36 deletions
diff --git a/test/files/run/icode-reader-dead-code.check b/test/files/run/icode-reader-dead-code.check new file mode 100644 index 0000000000..d1739fed3b --- /dev/null +++ b/test/files/run/icode-reader-dead-code.check @@ -0,0 +1,19 @@ +Bytecode for method f + L0 + LINENUMBER 4 L0 + ICONST_1 + IRETURN + L1 + LOCALVARIABLE this Lp/A; L0 L1 0 + MAXSTACK = 1 + MAXLOCALS = 1 +Bytecode for method f + L0 + LINENUMBER 4 L0 + ICONST_1 + ATHROW + IRETURN + L1 + LOCALVARIABLE this Lp/A; L0 L1 0 + MAXSTACK = 1 + MAXLOCALS = 1 diff --git a/test/files/run/icode-reader-dead-code.scala b/test/files/run/icode-reader-dead-code.scala new file mode 100644 index 0000000000..00ba58829f --- /dev/null +++ b/test/files/run/icode-reader-dead-code.scala @@ -0,0 +1,82 @@ +import java.io.{FileOutputStream, FileInputStream} + +import scala.tools.asm.{ClassWriter, Opcodes, ClassReader} +import scala.tools.asm.tree.{InsnNode, ClassNode} +import scala.tools.nsc.backend.jvm.AsmUtils +import scala.tools.partest.DirectTest +import scala.collection.JavaConverters._ + +/** + * Test that the ICodeReader does not crash if the bytecode of a method has unreachable code. + */ +object Test extends DirectTest { + def code: String = ??? + + def show(): Unit = { + // The bytecode of f will be modified using ASM by `addDeadCode` + val aCode = + """ + |package p + |class A { + | @inline final def f = 1 + |} + """.stripMargin + + val bCode = + """ + |package p + |class B { + | def g = (new A()).f + |} + """.stripMargin + + compileString(newCompiler("-usejavacp"))(aCode) + + addDeadCode() + + // If inlining fails, the compiler will issue an inliner warning that is not present in the + // check file + compileString(newCompiler("-usejavacp", "-optimise"))(bCode) + } + + def readClass(file: String) = { + val cnode = new ClassNode() + val is = new FileInputStream(file) + val reader = new ClassReader(is) + reader.accept(cnode, 0) + is.close() + cnode + } + + def writeClass(file: String, cnode: ClassNode): Unit = { + val writer = new ClassWriter(0) + cnode.accept(writer) + + val os = new FileOutputStream(file) + os.write(writer.toByteArray) + os.close() + } + + def addDeadCode() { + val file = (testOutput / "p" / "A.class").path + val cnode = readClass(file) + val method = cnode.methods.asScala.find(_.name == "f").head + + AsmUtils.traceMethod(method) + + val insns = method.instructions + val it = insns.iterator() + while (it.hasNext) { + val in = it.next() + if (in.getOpcode == Opcodes.IRETURN) { + // Insert an ATHROW before the IRETURN. The IRETURN will then be dead code. + // The ICodeReader should not crash if there's dead code. + insns.insert(in.getPrevious, new InsnNode(Opcodes.ATHROW)) + } + } + + AsmUtils.traceMethod(method) + + writeClass(file, cnode) + } +} diff --git a/test/files/run/repl-javap-app.check b/test/files/run/repl-javap-app.check index 490860585c..b7e806cc0b 100644 --- a/test/files/run/repl-javap-app.check +++ b/test/files/run/repl-javap-app.check @@ -1,4 +1,5 @@ #partest java6 +Welcome to Scala Type in expressions to have them evaluated. Type :help for more information. @@ -6,9 +7,9 @@ scala> :javap -app MyApp$ public final void delayedEndpoint$MyApp$1(); Code: Stack=2, Locals=1, Args_size=1 - 0: getstatic #61; //Field scala/Console$.MODULE$:Lscala/Console$; - 3: ldc #63; //String Hello, delayed world. - 5: invokevirtual #67; //Method scala/Console$.println:(Ljava/lang/Object;)V + 0: getstatic #XX; //Field scala/Console$.MODULE$:Lscala/Console$; + 3: ldc #XX; //String Hello, delayed world. + 5: invokevirtual #XX; //Method scala/Console$.println:(Ljava/lang/Object;)V 8: return LocalVariableTable: Start Length Slot Name Signature @@ -16,6 +17,7 @@ public final void delayedEndpoint$MyApp$1(); scala> #partest !java6 +Welcome to Scala Type in expressions to have them evaluated. Type :help for more information. @@ -24,9 +26,9 @@ scala> :javap -app MyApp$ flags: ACC_PUBLIC, ACC_FINAL Code: stack=2, locals=1, args_size=1 - 0: getstatic #61 // Field scala/Console$.MODULE$:Lscala/Console$; - 3: ldc #63 // String Hello, delayed world. - 5: invokevirtual #67 // Method scala/Console$.println:(Ljava/lang/Object;)V + 0: getstatic #XX // Field scala/Console$.MODULE$:Lscala/Console$; + 3: ldc #XX // String Hello, delayed world. + 5: invokevirtual #XX // Method scala/Console$.println:(Ljava/lang/Object;)V 8: return LocalVariableTable: Start Length Slot Name Signature diff --git a/test/files/run/repl-javap-app.scala b/test/files/run/repl-javap-app.scala index be04920be1..ad6076c2d5 100644 --- a/test/files/run/repl-javap-app.scala +++ b/test/files/run/repl-javap-app.scala @@ -7,4 +7,15 @@ object MyApp extends App { object Test extends ReplTest { def code = ":javap -app MyApp$" + + override def welcoming = true + + // The constant pool indices are not the same for GenASM / GenBCode, so + // replacing the exact numbers by XX. + lazy val hasConstantPoolRef = """(.*)(#\d\d)(.*)""".r + + override def normalize(s: String) = s match { + case hasConstantPoolRef(start, ref, end) => start + "#XX" + end + case _ => super.normalize(s) + } } diff --git a/test/files/run/t7974.check b/test/files/run/t7974.check index 0be496d8d0..d8152d3286 100644 --- a/test/files/run/t7974.check +++ b/test/files/run/t7974.check @@ -1,6 +1,5 @@ public class Symbols { - // compiled from: Symbols.scala @@ -18,20 +17,14 @@ public class Symbols { // access flags 0x9 public static <clinit>()V - L0 - LINENUMBER 2 L0 GETSTATIC scala/Symbol$.MODULE$ : Lscala/Symbol$; LDC "Symbolic1" INVOKEVIRTUAL scala/Symbol$.apply (Ljava/lang/String;)Lscala/Symbol; PUTSTATIC Symbols.symbol$1 : Lscala/Symbol; - L1 - LINENUMBER 3 L1 GETSTATIC scala/Symbol$.MODULE$ : Lscala/Symbol$; LDC "Symbolic2" INVOKEVIRTUAL scala/Symbol$.apply (Ljava/lang/String;)Lscala/Symbol; PUTSTATIC Symbols.symbol$2 : Lscala/Symbol; - L2 - LINENUMBER 5 L2 GETSTATIC scala/Symbol$.MODULE$ : Lscala/Symbol$; LDC "Symbolic3" INVOKEVIRTUAL scala/Symbol$.apply (Ljava/lang/String;)Lscala/Symbol; @@ -42,63 +35,41 @@ public class Symbols { // access flags 0x1 public someSymbol1()Lscala/Symbol; - L0 - LINENUMBER 2 L0 GETSTATIC Symbols.symbol$1 : Lscala/Symbol; ARETURN - L1 - LOCALVARIABLE this LSymbols; L0 L1 0 MAXSTACK = 1 MAXLOCALS = 1 // access flags 0x1 public someSymbol2()Lscala/Symbol; - L0 - LINENUMBER 3 L0 GETSTATIC Symbols.symbol$2 : Lscala/Symbol; ARETURN - L1 - LOCALVARIABLE this LSymbols; L0 L1 0 MAXSTACK = 1 MAXLOCALS = 1 // access flags 0x1 public sameSymbol1()Lscala/Symbol; - L0 - LINENUMBER 4 L0 GETSTATIC Symbols.symbol$1 : Lscala/Symbol; ARETURN - L1 - LOCALVARIABLE this LSymbols; L0 L1 0 MAXSTACK = 1 MAXLOCALS = 1 // access flags 0x1 public someSymbol3()Lscala/Symbol; - L0 - LINENUMBER 5 L0 ALOAD 0 GETFIELD Symbols.someSymbol3 : Lscala/Symbol; ARETURN - L1 - LOCALVARIABLE this LSymbols; L0 L1 0 MAXSTACK = 1 MAXLOCALS = 1 // access flags 0x1 public <init>()V - L0 - LINENUMBER 6 L0 ALOAD 0 INVOKESPECIAL java/lang/Object.<init> ()V - L1 - LINENUMBER 5 L1 ALOAD 0 GETSTATIC Symbols.symbol$3 : Lscala/Symbol; PUTFIELD Symbols.someSymbol3 : Lscala/Symbol; RETURN - L2 - LOCALVARIABLE this LSymbols; L0 L2 0 MAXSTACK = 2 MAXLOCALS = 1 } diff --git a/test/files/run/t7974/Test.scala b/test/files/run/t7974/Test.scala index 433d9061a7..29d2b9cb64 100644 --- a/test/files/run/t7974/Test.scala +++ b/test/files/run/t7974/Test.scala @@ -6,7 +6,7 @@ import scala.tools.nsc.util.stringFromWriter object Test extends BytecodeTest { def show { - val classNode = loadClassNode("Symbols", skipDebugInfo = false) + val classNode = loadClassNode("Symbols", skipDebugInfo = true) val textifier = new Textifier classNode.accept(new TraceClassVisitor(null, textifier, null)) diff --git a/test/junit/scala/collection/IndexedSeqOptimizedTest.scala b/test/junit/scala/collection/IndexedSeqOptimizedTest.scala new file mode 100644 index 0000000000..e5382907af --- /dev/null +++ b/test/junit/scala/collection/IndexedSeqOptimizedTest.scala @@ -0,0 +1,16 @@ +package scala.collection + +import org.junit.runner.RunWith +import org.junit.runners.JUnit4 +import org.junit.Assert._ +import org.junit.Test + +@RunWith(classOf[JUnit4]) +class IndexedSeqOptimizedTest { + + @Test + def notThrowsAnExceptionInLastIndexOf() { + assertEquals(0, (Array(2): collection.mutable.WrappedArray[Int]).lastIndexWhere(_ => true, 1)) + assertEquals(2, "abc123".lastIndexWhere(_.isLetter, 6)) + } +} |