diff options
Diffstat (limited to 'test/junit/scala/tools/nsc/backend/jvm/CodeGenTools.scala')
| -rw-r--r-- | test/junit/scala/tools/nsc/backend/jvm/CodeGenTools.scala | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/test/junit/scala/tools/nsc/backend/jvm/CodeGenTools.scala b/test/junit/scala/tools/nsc/backend/jvm/CodeGenTools.scala deleted file mode 100644 index ee9580c1c3..0000000000 --- a/test/junit/scala/tools/nsc/backend/jvm/CodeGenTools.scala +++ /dev/null @@ -1,178 +0,0 @@ -package scala.tools.nsc.backend.jvm - -import org.junit.Assert._ - -import scala.collection.mutable.ListBuffer -import scala.reflect.internal.util.BatchSourceFile -import scala.reflect.io.VirtualDirectory -import scala.tools.asm.Opcodes -import scala.tools.asm.tree.{AbstractInsnNode, ClassNode, MethodNode} -import scala.tools.cmd.CommandLineParser -import scala.tools.nsc.io.AbstractFile -import scala.tools.nsc.reporters.StoreReporter -import scala.tools.nsc.settings.MutableSettings -import scala.tools.nsc.{Settings, Global} -import scala.tools.partest.ASMConverters -import scala.collection.JavaConverters._ -import scala.tools.testing.TempDir -import AsmUtils._ - -object CodeGenTools { - import ASMConverters._ - - def genMethod( flags: Int = Opcodes.ACC_PUBLIC, - name: String = "m", - descriptor: String = "()V", - genericSignature: String = null, - throwsExceptions: Array[String] = null, - handlers: List[ExceptionHandler] = Nil, - localVars: List[LocalVariable] = Nil)(body: Instruction*): MethodNode = { - val node = new MethodNode(flags, name, descriptor, genericSignature, throwsExceptions) - applyToMethod(node, Method(body.toList, handlers, localVars)) - node - } - - def wrapInClass(method: MethodNode): ClassNode = { - val cls = new ClassNode() - cls.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, "C", null, "java/lang/Object", null) - cls.methods.add(method) - cls - } - - private def resetOutput(compiler: Global): Unit = { - compiler.settings.outputDirs.setSingleOutput(new VirtualDirectory("(memory)", None)) - } - - def newCompiler(defaultArgs: String = "-usejavacp", extraArgs: String = ""): Global = { - val compiler = newCompilerWithoutVirtualOutdir(defaultArgs, extraArgs) - resetOutput(compiler) - compiler - } - - def newCompilerWithoutVirtualOutdir(defaultArgs: String = "-usejavacp", extraArgs: String = ""): Global = { - val settings = new Settings() - val args = (CommandLineParser tokenize defaultArgs) ++ (CommandLineParser tokenize extraArgs) - settings.processArguments(args, processAll = true) - new Global(settings, new StoreReporter) - } - - def newRun(compiler: Global): compiler.Run = { - compiler.reporter.reset() - resetOutput(compiler) - new compiler.Run() - } - - def reporter(compiler: Global) = compiler.reporter.asInstanceOf[StoreReporter] - - def makeSourceFile(code: String, filename: String): BatchSourceFile = new BatchSourceFile(filename, code) - - def getGeneratedClassfiles(outDir: AbstractFile): List[(String, Array[Byte])] = { - def files(dir: AbstractFile): List[(String, Array[Byte])] = { - val res = ListBuffer.empty[(String, Array[Byte])] - for (f <- dir.iterator) { - if (!f.isDirectory) res += ((f.name, f.toByteArray)) - else if (f.name != "." && f.name != "..") res ++= files(f) - } - res.toList - } - files(outDir) - } - - def checkReport(compiler: Global, allowMessage: StoreReporter#Info => Boolean = _ => false): Unit = { - val disallowed = reporter(compiler).infos.toList.filter(!allowMessage(_)) // toList prevents an infer-non-wildcard-existential warning. - if (disallowed.nonEmpty) { - val msg = disallowed.mkString("\n") - assert(false, "The compiler issued non-allowed warnings or errors:\n" + msg) - } - } - - def compile(compiler: Global)(scalaCode: String, javaCode: List[(String, String)] = Nil, allowMessage: StoreReporter#Info => Boolean = _ => false): List[(String, Array[Byte])] = { - val run = newRun(compiler) - run.compileSources(makeSourceFile(scalaCode, "unitTestSource.scala") :: javaCode.map(p => makeSourceFile(p._1, p._2))) - checkReport(compiler, allowMessage) - getGeneratedClassfiles(compiler.settings.outputDirs.getSingleOutput.get) - } - - /** - * Compile multiple Scala files separately into a single output directory. - * - * Note that a new compiler instance is created for compiling each file because symbols survive - * across runs. This makes separate compilation slower. - * - * The output directory is a physical directory, I have not figured out if / how it's possible to - * add a VirtualDirectory to the classpath of a compiler. - */ - def compileSeparately(codes: List[String], extraArgs: String = "", allowMessage: StoreReporter#Info => Boolean = _ => false, afterEach: AbstractFile => Unit = _ => ()): List[(String, Array[Byte])] = { - val outDir = AbstractFile.getDirectory(TempDir.createTempDir()) - val outDirPath = outDir.canonicalPath - val argsWithOutDir = extraArgs + s" -d $outDirPath -cp $outDirPath" - - for (code <- codes) { - val compiler = newCompilerWithoutVirtualOutdir(extraArgs = argsWithOutDir) - new compiler.Run().compileSources(List(makeSourceFile(code, "unitTestSource.scala"))) - checkReport(compiler, allowMessage) - afterEach(outDir) - } - - val classfiles = getGeneratedClassfiles(outDir) - outDir.delete() - classfiles - } - - def compileClassesSeparately(codes: List[String], extraArgs: String = "", allowMessage: StoreReporter#Info => Boolean = _ => false, afterEach: AbstractFile => Unit = _ => ()) = { - readAsmClasses(compileSeparately(codes, extraArgs, allowMessage, afterEach)) - } - - def readAsmClasses(classfiles: List[(String, Array[Byte])]) = { - classfiles.map(p => AsmUtils.readClass(p._2)).sortBy(_.name) - } - - def compileClasses(compiler: Global)(code: String, javaCode: List[(String, String)] = Nil, allowMessage: StoreReporter#Info => Boolean = _ => false): List[ClassNode] = { - readAsmClasses(compile(compiler)(code, javaCode, allowMessage)) - } - - def compileMethods(compiler: Global)(code: String, allowMessage: StoreReporter#Info => Boolean = _ => false): List[MethodNode] = { - compileClasses(compiler)(s"class C { $code }", allowMessage = allowMessage).head.methods.asScala.toList.filterNot(_.name == "<init>") - } - - def singleMethodInstructions(compiler: Global)(code: String, allowMessage: StoreReporter#Info => Boolean = _ => false): List[Instruction] = { - val List(m) = compileMethods(compiler)(code, allowMessage = allowMessage) - instructionsFromMethod(m) - } - - def singleMethod(compiler: Global)(code: String, allowMessage: StoreReporter#Info => Boolean = _ => false): Method = { - val List(m) = compileMethods(compiler)(code, allowMessage = allowMessage) - convertMethod(m) - } - - def assertSameCode(actual: List[Instruction], expected: List[Instruction]): Unit = { - assertTrue(s"\nExpected: $expected\nActual : $actual", actual === expected) - } - - def getSingleMethod(classNode: ClassNode, name: String): Method = - convertMethod(classNode.methods.asScala.toList.find(_.name == name).get) - - /** - * Instructions that match `query` when textified. - * If `query` starts with a `+`, the next instruction is returned. - */ - def findInstr(method: MethodNode, query: String): List[AbstractInsnNode] = { - val useNext = query(0) == '+' - val instrPart = if (useNext) query.drop(1) else query - val insns = method.instructions.iterator.asScala.find(i => textify(i) contains instrPart).toList - if (useNext) insns.map(_.getNext) else insns - } - - def assertHandlerLabelPostions(h: ExceptionHandler, instructions: List[Instruction], startIndex: Int, endIndex: Int, handlerIndex: Int): Unit = { - val insVec = instructions.toVector - assertTrue(h.start == insVec(startIndex) && h.end == insVec(endIndex) && h.handler == insVec(handlerIndex)) - } - - import scala.language.implicitConversions - - implicit def aliveInstruction(ins: Instruction): (Instruction, Boolean) = (ins, true) - - implicit class MortalInstruction(val ins: Instruction) extends AnyVal { - def dead: (Instruction, Boolean) = (ins, false) - } -} |