diff options
Diffstat (limited to 'src/compiler/scala/tools/nsc/backend/jvm/AsmUtils.scala')
-rw-r--r-- | src/compiler/scala/tools/nsc/backend/jvm/AsmUtils.scala | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/jvm/AsmUtils.scala b/src/compiler/scala/tools/nsc/backend/jvm/AsmUtils.scala index cd7e0b83e8..32f8c7826f 100644 --- a/src/compiler/scala/tools/nsc/backend/jvm/AsmUtils.scala +++ b/src/compiler/scala/tools/nsc/backend/jvm/AsmUtils.scala @@ -8,8 +8,9 @@ package scala.tools.nsc.backend.jvm import scala.tools.asm.tree.{InsnList, AbstractInsnNode, ClassNode, MethodNode} import java.io.{StringWriter, PrintWriter} import scala.tools.asm.util.{CheckClassAdapter, TraceClassVisitor, TraceMethodVisitor, Textifier} -import scala.tools.asm.{ClassWriter, Attribute, ClassReader} +import scala.tools.asm.{ClassReader, ClassWriter, Attribute} import scala.collection.convert.decorateAsScala._ +import scala.collection.convert.decorateAsJava._ import scala.tools.nsc.backend.jvm.analysis.InitialProducer import scala.tools.nsc.backend.jvm.opt.InlineInfoAttributePrototype @@ -55,6 +56,32 @@ object AsmUtils { node } + def readClass(filename: String): ClassNode = readClass(classBytes(filename)) + + def classBytes(file: String): Array[Byte] = { + val f = new java.io.RandomAccessFile(file, "r") + val bytes = new Array[Byte](f.length.toInt) + f.read(bytes) + bytes + } + + def textifyClassStably(bytes: Array[Byte]): Unit = { + val node = new ClassNode() + new ClassReader(bytes).accept(node, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES) + + node.fields = node.fields.asScala.sortBy(_.name).asJava + node.methods = node.methods.asScala.sortBy(_.name).asJava + node.visibleAnnotations = null + node.attrs = null + node.invisibleAnnotations = null + + println(textify(node)) + } + + def main(args: Array[String]): Unit = { + textifyClassStably(classBytes(args.head)) + } + /** * Returns a human-readable representation of the cnode ClassNode. */ @@ -115,12 +142,12 @@ object AsmUtils { * Run ASM's CheckClassAdapter over a class. Returns None if no problem is found, otherwise * Some(msg) with the verifier's error message. */ - def checkClass(classNode: ClassNode): Option[String] = { + def checkClass(classNode: ClassNode, dumpNonErroneous: Boolean = false): Option[String] = { val cw = new ClassWriter(ClassWriter.COMPUTE_MAXS) classNode.accept(cw) val sw = new StringWriter() val pw = new PrintWriter(sw) - CheckClassAdapter.verify(new ClassReader(cw.toByteArray), false, pw) + CheckClassAdapter.verify(new ClassReader(cw.toByteArray), dumpNonErroneous, pw) val res = sw.toString if (res.isEmpty) None else Some(res) } |