From 4efd9c5761eaf53ec2dbd3b333a38d359c97a030 Mon Sep 17 00:00:00 2001 From: jochen Date: Sun, 27 Jun 1999 21:06:56 +0000 Subject: [PATCH] better this. handling (NOSUPERMETHODNAME) hint types reworked (classes inherit hints now) git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@940 379699f6-c40d-0410-875b-85095c16579e --- jode/jode/expr/InvokeOperator.java | 178 ++++++++++++++++------------- 1 file changed, 98 insertions(+), 80 deletions(-) diff --git a/jode/jode/expr/InvokeOperator.java b/jode/jode/expr/InvokeOperator.java index 2e439cc..a3ceb92 100644 --- a/jode/jode/expr/InvokeOperator.java +++ b/jode/jode/expr/InvokeOperator.java @@ -30,9 +30,19 @@ import jode.bytecode.*; import jode.jvm.*; import jode.type.*; import jode.decompiler.Scope; +import jode.util.SimpleMap; import java.lang.reflect.InvocationTargetException; import java.util.Hashtable; +///#ifdef JDK12 +///import java.util.Collections; +///import java.util.Map; +///import java.util.Iterator; +///#else +import jode.util.Collections; +import jode.util.Map; +import jode.util.Iterator; +///#endif public final class InvokeOperator extends Operator implements MatchableOperator { @@ -44,85 +54,65 @@ public final class InvokeOperator extends Operator Type classType; Type[] hints; + /** + * This hashtable contains hints for every library method. Some + * library method take or return an int, but it should be a char + * instead. We will remember that here to give them the right + * hint. + * + * The key is the string: methodName + "." + methodType, the value + * is a map: It maps base class types for which this hint applies, + * to an array of hint types corresponding to the parameters: The + * first element is the hint type of the return value, the + * remaining entries are the hint types of the parameters. All + * hint types may be null, if that parameter shouldn't be hinted. + */ private final static Hashtable hintTypes = new Hashtable(); static { - /* Fill the hint type hashtable. For example, the first + /* Fill the hint type hashtable. For example, the first * parameter of String.indexOf should be hinted as char, even * though the formal parameter is an int. * First hint is hint of return value (even if void) * other hints are that of the parameters in order + * + * You only have to hint the base class. Other classes will + * inherit the hints. + * + * We reuse a lot of objects, since they are all unchangeable + * this is no problem. We only hint for chars; it doesn't + * make much sense to hint for byte, since its constant + * representation is more difficult than an int + * representation. If you have more hints to suggest, please + * write contact me. (see GlobalOptions.EMAIL) */ Type tCharHint = new IntegerType(IntegerType.IT_I, IntegerType.IT_C); Type[] hintC = new Type[] { tCharHint }; Type[] hint0C = new Type[] { null, tCharHint }; Type[] hint0C0 = new Type[] { null, tCharHint, null }; - hintTypes.put(Reference.getReference - ("Ljava/lang/String;", "indexOf", "(I)I"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/lang/String;", "indexOf", "(II)I"), - hint0C0); - hintTypes.put(Reference.getReference - ("Ljava/lang/String;", "lastIndexOf", "(I)I"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/lang/String;", "lastIndexOf", "(II)I"), - hint0C0); - hintTypes.put(Reference.getReference - ("Ljava/io/Writer;", "write", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/io/BufferedWriter;", "write", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/io/CharArrayWriter;", "write", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/io/FilterWriter;", "write", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/io/OutputStreamWriter;", "write", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/io/PipedWriter;", "write", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/io/PrintWriter;", "write", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/io/StringWriter;", "write", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/io/PushbackReader;", "unread", "(I)V"), - hint0C); - hintTypes.put(Reference.getReference - ("Ljava/lang/Reader;", "read", "()I"), - hintC); - hintTypes.put(Reference.getReference - ("Ljava/lang/BufferedReader;", "read", "()I"), - hintC); - hintTypes.put(Reference.getReference - ("Ljava/lang/CharArrayReader;", "read", "()I"), - hintC); - hintTypes.put(Reference.getReference - ("Ljava/lang/FilterReader;", "read", "()I"), - hintC); - hintTypes.put(Reference.getReference - ("Ljava/lang/InputStreamReader;", "read", "()I"), - hintC); - hintTypes.put(Reference.getReference - ("Ljava/lang/LineNumberReader;", "read", "()I"), - hintC); - hintTypes.put(Reference.getReference - ("Ljava/lang/PipedReader;", "read", "()I"), - hintC); - hintTypes.put(Reference.getReference - ("Ljava/lang/PushBackReader;", "read", "()I"), - hintC); - hintTypes.put(Reference.getReference - ("Ljava/lang/StringReader;", "read", "()I"), - hintC); + + Map hintString0CMap = new SimpleMap + (Collections.singleton + (new SimpleMap.SimpleEntry(Type.tString, hint0C))); + Map hintString0C0Map = new SimpleMap + (Collections.singleton + (new SimpleMap.SimpleEntry(Type.tString, hint0C0))); + hintTypes.put("indexOf.(I)I", hintString0CMap); + hintTypes.put("lastIndexOf.(I)I", hintString0CMap); + hintTypes.put("indexOf.(II)I", hintString0C0Map); + hintTypes.put("lastIndexOf.(II)I", hintString0C0Map); + hintTypes.put("write.(I)V", new SimpleMap + (Collections.singleton + (new SimpleMap.SimpleEntry + (Type.tClass("java.io.Writer"), hint0C)))); + hintTypes.put("read.()I", new SimpleMap + (Collections.singleton + (new SimpleMap.SimpleEntry + (Type.tClass("java.io.Reader"), hintC)))); + hintTypes.put("unread.(I)V", new SimpleMap + (Collections.singleton + (new SimpleMap.SimpleEntry + (Type.tClass("java.io.PushbackReader"), hint0C)))); } @@ -133,7 +123,17 @@ public final class InvokeOperator extends Operator this.methodType = Type.tMethod(reference.getType()); this.methodName = reference.getName(); this.classType = Type.tType(reference.getClazz()); - this.hints = (Type[]) hintTypes.get(reference); + this.hints = null; + Map allHints = (Map) hintTypes.get(methodName+"."+methodType); + if (allHints != null) { + for (Iterator i = allHints.entrySet().iterator(); i.hasNext();) { + Map.Entry e = (Map.Entry) i.next(); + if (classType.isOfType(((Type)e.getKey()).getSubType())) { + this.hints = (Type[]) e.getValue(); + break; + } + } + } if (hints != null && hints[0] != null) this.type = hints[0]; else @@ -241,11 +241,11 @@ public final class InvokeOperator extends Operator } public MethodAnalyzer getMethodAnalyzer() { - if (classType instanceof ClassInterfacesType) { + ClassInfo clazz = getClassInfo(); + if (clazz != null) { ClassAnalyzer ana = methodAnalyzer.getClassAnalyzer(); while (true) { - if (((ClassInterfacesType) classType).getClassInfo() - == ana.getClazz()) { + if (clazz == ana.getClazz()) { return ana.getMethod(methodName, methodType); } if (ana.getParent() == null) @@ -267,9 +267,9 @@ public final class InvokeOperator extends Operator * @XXX check, if its the first super class that implements the method. */ public boolean isSuperOrThis() { - if (classType instanceof ClassInterfacesType) { - return ((ClassInterfacesType) classType).getClassInfo() - .superClassOf(methodAnalyzer.getClazz()); + ClassInfo clazz = getClassInfo(); + if (clazz != null) { + return clazz.superClassOf(methodAnalyzer.getClazz()); } return false; } @@ -446,7 +446,7 @@ public final class InvokeOperator extends Operator if (getMethodAnalyzer() != null) { SyntheticAnalyzer synth = getMethodAnalyzer().getSynthetic(); if (synth != null) { - Operator op = null; + Expression op = null; switch (synth.getKind()) { case SyntheticAnalyzer.ACCESSGETFIELD: op = new GetFieldOperator(methodAnalyzer, false, @@ -478,8 +478,11 @@ public final class InvokeOperator extends Operator if (op != null) { if (subExpressions != null) { - for (int i=subExpressions.length; i-- > 0; ) - op.addOperand(subExpressions[i]); + for (int i=subExpressions.length; i-- > 0; ) { + op = op.addOperand(subExpressions[i]); + if (subExpressions[i].getFreeOperandCount() > 0) + break; + } } return op; } @@ -639,6 +642,9 @@ public final class InvokeOperator extends Operator /* XXX check that this is the first defined * super method. */ writer.print("super"); + ClassInfo superClazz = getClassInfo().getSuperclass(); + paramTypes[0] = superClazz == null + ? Type.tObject : Type.tClass(superClazz); opIsThis = false; } } else { @@ -675,8 +681,20 @@ public final class InvokeOperator extends Operator */ getMethodAnalyzer() == null && writer.conflicts(methodName, null, - Scope.METHODNAME)) { - writer.print("this."); + Scope.NOSUPERMETHODNAME)) { + ClassAnalyzer ana = methodAnalyzer.getClassAnalyzer(); + while (ana.getParent() instanceof ClassAnalyzer + && ana != scope) + ana = (ClassAnalyzer) ana.getParent(); + if (ana == scope) + // For a simple outer class we can say this + writer.print("this."); + else { + // For a class that owns a method that owns + // us, we have to give the full class name + thisOp.dumpExpression(writer, 950); + writer.print("."); + } } } else { if (needsCast(0, paramTypes)){ @@ -712,7 +730,7 @@ public final class InvokeOperator extends Operator Type castType = methodType.getParameterTypes()[arg-offset]; writer.print("("); writer.printType(castType); - writer.print(")"); + writer.print(") "); paramTypes[arg] = castType; priority = 700; }