test/hotspot/jtreg/vmTestbase/vm/runtime/defmeth/shared/Printer.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */

 package vm.runtime.defmeth.shared;

 import java.util.List;
 import java.util.ArrayList;
 import static jdk.internal.org.objectweb.asm.Opcodes.*;

 import vm.runtime.defmeth.shared.data.*;
 import vm.runtime.defmeth.shared.data.method.*;
 import vm.runtime.defmeth.shared.data.method.body.*;
 import vm.runtime.defmeth.shared.data.method.param.*;
 import vm.runtime.defmeth.shared.data.method.result.*;

 import static java.lang.String.*;
 import nsk.share.Pair;


 /**
  * Construct text representation of a class.
  * Used to print generated class hierarchies.
  */
 public class Printer implements Visitor {

     private StringBuilder sb = new StringBuilder();
     private Tester t;

     private String output() {
         return sb.toString();
     }

     static private String printAcc(int acc) {
         List<String> flags = new ArrayList<>();

         if ((acc & ACC_STATIC) != 0) {
             flags.add("static");
         }

         if ((acc & ACC_PUBLIC) != 0) {
             flags.add("public");
         }

         if ((acc & ACC_PRIVATE) != 0) {
             flags.add("private");
         }

         if ((acc & ACC_PROTECTED) != 0) {
             flags.add("protected");
         }

         if ((acc & ACC_PUBLIC) == 0 &&
                 (acc & ACC_PRIVATE) == 0 &&
                 (acc & ACC_PROTECTED) == 0) {
             flags.add("package");
         }

         if ((acc & ACC_STRICT) != 0) {
             flags.add("strictfp");
         }

         if ((acc & ACC_SYNCHRONIZED) != 0) {
             flags.add("synchronized");
         }

         return Util.intersperse(" ", flags.toArray(new String[0]));
     }
     static public String print(Clazz clz) {
         Printer p = new Printer();
         clz.visit(p);
         return p.output();
     }

     static public String print(Method m) {
         Printer p = new Printer();
         m.visit(p);
         return p.output();
     }

     @Override
     public void visitClass(Clazz clz) {
         throw new IllegalStateException("More specific method should be called");
     }

     @Override
     public void visitMethod(Method m) {
         sb.append(String.format(
                 "%s%s",
                 m.name(), m.desc()));

         if (m.sig() != null) {
             sb.append("/* <").append(m.sig()).append("> */");
         }
     }

     @Override
     public void visitConcreteClass(ConcreteClass clz) {
         sb.append("class ").append(clz.name()).append(" ");

         if (!clz.parent().name().equals("java.lang.Object")) {
             sb.append("extends ").append(clz.parent().name()).append(" ");
         }

         if (clz.interfaces().length > 0) {
             sb.append("implements ");
             sb.append(Util.intersperse(", ", Util.asStrings(clz.interfaces())));
             sb.append(" ");
         }

         Method[] methods = clz.methods();

         sb.append("{");
         if (methods.length > 0) {
             for (Method m : methods) {
                 sb.append("\n    ");
                 m.visit(this);
             }
             sb.append("\n");
         }
         sb.append("}");
     }

     @Override
     public void visitInterface(Interface intf) {
         sb.append("interface ").append(intf.name())
                 .append(" ");

         if (intf.parents().length > 0) {
             sb.append("extends ");
             sb.append(Util.intersperse(", ", Util.asStrings(intf.parents())));
             sb.append(" ");
         }

         Method[] methods = intf.methods();

         sb.append("{");
         if (methods.length > 0) {
             for (Method m : methods) {
                 sb.append("\n    ");
                 m.visit(this);
             }
             sb.append("\n");
         }
         sb.append("}");
     }
     @Override

     /* ====================================================================== */

     public void visitTester(Tester t) {
         this.t = t;

         //sb.append(t.name()).append(": ");
         sb.append("TEST: ");

         //t.getCall().visit(this);
         CallMethod call = t.getCall();

         // call.receiverClass() is null when a .staticCallSite() invoke is
         // used. There is a staticClass but no receiverClass.
         sb.append(format("%s o = new %s(); o.%s%s",
                 call.staticClass().name(),
                 (call.receiverClass() == null ? "" : call.receiverClass().name()),
                 call.methodName(),
                 call.methodDesc()));

         sb.append(" ");

         t.getResult().visit(this);

         this.t = null;
     }

     /* ====================================================================== */

     @Override
     public void visitAbstractMethod(AbstractMethod m) {
         Pair<String[],String> desc = Util.parseDesc(m.desc());

         sb.append(format(
                 "abstract %s %s %s(%s);",
                 printAcc(m.acc()),
                 Util.decodeClassName(desc.second),
                 m.name(),
                 Util.intersperse(", ", desc.first)));

         if (m.sig() != null) {
             sb.append("<").append(m.sig()).append(">");
         }
     }

     @Override
     public void visitConcreteMethod(ConcreteMethod m) {
         Pair<String[],String> desc = Util.parseDesc(m.desc());

         sb.append(format(
                 "%s %s %s(%s)",
                 printAcc(m.acc()),
                 Util.decodeClassName(desc.second),
                 m.name(),
                 Util.intersperse(", ", desc.first)));

         if (m.sig() != null) {
             sb.append("<").append(m.sig()).append(">");
         }

         sb.append(" ");

         sb.append(" { ");
         m.body().visit(this);
         sb.append(" }");
     }

     @Override
     public void visitDefaultMethod(DefaultMethod m) {
         Pair<String[],String> desc = Util.parseDesc(m.desc());

         sb.append(format(
                 "default %s %s %s(%s)",
                 printAcc(m.acc()),
                 Util.decodeClassName(desc.second),
                 m.name(),
                 Util.intersperse(", ", desc.first)));

         if (m.sig() != null) {
             sb.append("<").append(m.sig()).append(">");
         }

         sb.append(" { ");
         m.body().visit(this);
         sb.append(" }");
     }

     /* ====================================================================== */

     @Override
     public void visitThrowExBody(ThrowExBody body) {
         sb.append(String.format(
                 "throw new %s();", body.getExc().name()));
     }

     @Override
     public void visitReturnIntBody(ReturnIntBody body) {
         sb.append(String.format(
                 "return %d;", body.getValue()));
     }

     @Override
     public void visitReturnNullBody(ReturnNullBody body) {
         sb.append("return null;");
     }

     @Override
     public void visitEmptyBody(EmptyBody aThis) {
     }

     /* ====================================================================== */

     @Override
     public void visitResultIgnore() {
         sb.append("/* result ignored */");
     }

     @Override
     public void visitResultInt(IntResult res) {
         sb.append("== ").append(res.getExpected());
     }

     @Override
     public void visitResultThrowExc(ThrowExResult res) {
         sb.append(String.format(
                 "throws %s%s",
                 abbreviateExcName(res.getExc().name()),
                 res.getMessage() != null ? "(\"" + res.getMessage() + "\")"  : ""));
     }

     private String abbreviateExcName(String name) {
         switch(name) {
             case "java.lang.AbstractMethodError" : return "AME";
             case "java.lang.NoSuchMethodError"   : return "NSME";
             default: return name.replaceAll("java\\.lang\\.", "");
         }
     }
     /* ====================================================================== */

     @Override
     public void visitParamInt(IntParam param) {
         sb.append(param.value());
     }

     @Override
     public void visitParamString(StringParam param) {
         sb.append(param.value());
     }

     @Override
     public void visitParamNull() {
         sb.append("null");
     }
     @Override
     public void visitParamLong(LongParam param) {
         sb.append(param.value());
     }

     @Override
     public void visitParamFloat(FloatParam param) {
         sb.append(param.value());
     }

     @Override
     public void visitParamDouble(DoubleParam param) {
         sb.append(param.value());
     }

     @Override
     public void visitParamNewInstance(NewInstanceParam param) {
         sb.append(String.format(
                 "new %s()",
                 param.clazz().name()));
     }

     @Override
     public void visitCallMethod(CallMethod call) {
         String[] paramTypes = Util.parseDesc(call.methodDesc()).first;

         if (paramTypes.length != call.params().length) {
             throw new IllegalStateException();
         }

         //sb.append("{ ");
         if (!call.popReturnValue()) {
             sb.append("return ");
         }

         switch (call.invokeInsn()) {
             case VIRTUAL: case INTERFACE:
                 sb.append(String.format(
                         "((%s)%s).%s(",
                         call.staticClass().name(),
                         call.receiverClass() != null ? call.receiverClass().name() : "this",
                         call.methodName()));
                 break;
             case STATIC:
                 sb.append(String.format(
                         "%s.%s(",
                         call.staticClass().name(),
                         call.methodName()));
                 break;
             case SPECIAL:
                 sb.append(String.format(
                         "%s.super.%s(",
                         call.staticClass().name(),
                         call.methodName()));
                 break;
             default:
                 throw new IllegalStateException();
         }

         for (int i = 0; i<paramTypes.length; i++) {
             sb.append(String.format(
                     "(%s)", paramTypes[i]));

             call.params()[i].visit(this);

             if (i+1 < paramTypes.length) {
                 sb.append(", ");
             }
         }

         //sb.append("); }");
         sb.append(");");
     }

     @Override
     public void visitReturnNewInstanceBody(ReturnNewInstanceBody body) {
         sb.append(String.format(
                         "return new %s();",
                         body.getType().name()));
     }
 }
	/*
	* Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package vm.runtime.defmeth.shared;

	import java.util.List;
	import java.util.ArrayList;
	import static jdk.internal.org.objectweb.asm.Opcodes.*;

	import vm.runtime.defmeth.shared.data.*;
	import vm.runtime.defmeth.shared.data.method.*;
	import vm.runtime.defmeth.shared.data.method.body.*;
	import vm.runtime.defmeth.shared.data.method.param.*;
	import vm.runtime.defmeth.shared.data.method.result.*;

	import static java.lang.String.*;
	import nsk.share.Pair;


	/**
	* Construct text representation of a class.
	* Used to print generated class hierarchies.
	*/
	public class Printer implements Visitor {

	private StringBuilder sb = new StringBuilder();
	private Tester t;

	private String output() {
	return sb.toString();
	}

	static private String printAcc(int acc) {
	List<String> flags = new ArrayList<>();

	if ((acc & ACC_STATIC) != 0) {
	flags.add("static");
	}

	if ((acc & ACC_PUBLIC) != 0) {
	flags.add("public");
	}

	if ((acc & ACC_PRIVATE) != 0) {
	flags.add("private");
	}

	if ((acc & ACC_PROTECTED) != 0) {
	flags.add("protected");
	}

	if ((acc & ACC_PUBLIC) == 0 &&
	(acc & ACC_PRIVATE) == 0 &&
	(acc & ACC_PROTECTED) == 0) {
	flags.add("package");
	}

	if ((acc & ACC_STRICT) != 0) {
	flags.add("strictfp");
	}

	if ((acc & ACC_SYNCHRONIZED) != 0) {
	flags.add("synchronized");
	}

	return Util.intersperse(" ", flags.toArray(new String[0]));
	}
	static public String print(Clazz clz) {
	Printer p = new Printer();
	clz.visit(p);
	return p.output();
	}

	static public String print(Method m) {
	Printer p = new Printer();
	m.visit(p);
	return p.output();
	}

	@Override
	public void visitClass(Clazz clz) {
	throw new IllegalStateException("More specific method should be called");
	}

	@Override
	public void visitMethod(Method m) {
	sb.append(String.format(
	"%s%s",
	m.name(), m.desc()));

	if (m.sig() != null) {
	sb.append("/* <").append(m.sig()).append("> */");
	}
	}

	@Override
	public void visitConcreteClass(ConcreteClass clz) {
	sb.append("class ").append(clz.name()).append(" ");

	if (!clz.parent().name().equals("java.lang.Object")) {
	sb.append("extends ").append(clz.parent().name()).append(" ");
	}

	if (clz.interfaces().length > 0) {
	sb.append("implements ");
	sb.append(Util.intersperse(", ", Util.asStrings(clz.interfaces())));
	sb.append(" ");
	}

	Method[] methods = clz.methods();

	sb.append("{");
	if (methods.length > 0) {
	for (Method m : methods) {
	sb.append("\n ");
	m.visit(this);
	}
	sb.append("\n");
	}
	sb.append("}");
	}

	@Override
	public void visitInterface(Interface intf) {
	sb.append("interface ").append(intf.name())
	.append(" ");

	if (intf.parents().length > 0) {
	sb.append("extends ");
	sb.append(Util.intersperse(", ", Util.asStrings(intf.parents())));
	sb.append(" ");
	}

	Method[] methods = intf.methods();

	sb.append("{");
	if (methods.length > 0) {
	for (Method m : methods) {
	sb.append("\n ");
	m.visit(this);
	}
	sb.append("\n");
	}
	sb.append("}");
	}
	@Override

	/* ====================================================================== */

	public void visitTester(Tester t) {
	this.t = t;

	//sb.append(t.name()).append(": ");
	sb.append("TEST: ");

	//t.getCall().visit(this);
	CallMethod call = t.getCall();

	// call.receiverClass() is null when a .staticCallSite() invoke is
	// used. There is a staticClass but no receiverClass.
	sb.append(format("%s o = new %s(); o.%s%s",
	call.staticClass().name(),
	(call.receiverClass() == null ? "" : call.receiverClass().name()),
	call.methodName(),
	call.methodDesc()));

	sb.append(" ");

	t.getResult().visit(this);

	this.t = null;
	}

	/* ====================================================================== */

	@Override
	public void visitAbstractMethod(AbstractMethod m) {
	Pair<String[],String> desc = Util.parseDesc(m.desc());

	sb.append(format(
	"abstract %s %s %s(%s);",
	printAcc(m.acc()),
	Util.decodeClassName(desc.second),
	m.name(),
	Util.intersperse(", ", desc.first)));

	if (m.sig() != null) {
	sb.append("<").append(m.sig()).append(">");
	}
	}

	@Override
	public void visitConcreteMethod(ConcreteMethod m) {
	Pair<String[],String> desc = Util.parseDesc(m.desc());

	sb.append(format(
	"%s %s %s(%s)",
	printAcc(m.acc()),
	Util.decodeClassName(desc.second),
	m.name(),
	Util.intersperse(", ", desc.first)));

	if (m.sig() != null) {
	sb.append("<").append(m.sig()).append(">");
	}

	sb.append(" ");

	sb.append(" { ");
	m.body().visit(this);
	sb.append(" }");
	}

	@Override
	public void visitDefaultMethod(DefaultMethod m) {
	Pair<String[],String> desc = Util.parseDesc(m.desc());

	sb.append(format(
	"default %s %s %s(%s)",
	printAcc(m.acc()),
	Util.decodeClassName(desc.second),
	m.name(),
	Util.intersperse(", ", desc.first)));

	if (m.sig() != null) {
	sb.append("<").append(m.sig()).append(">");
	}

	sb.append(" { ");
	m.body().visit(this);
	sb.append(" }");
	}

	/* ====================================================================== */

	@Override
	public void visitThrowExBody(ThrowExBody body) {
	sb.append(String.format(
	"throw new %s();", body.getExc().name()));
	}

	@Override
	public void visitReturnIntBody(ReturnIntBody body) {
	sb.append(String.format(
	"return %d;", body.getValue()));
	}

	@Override
	public void visitReturnNullBody(ReturnNullBody body) {
	sb.append("return null;");
	}

	@Override
	public void visitEmptyBody(EmptyBody aThis) {
	}

	/* ====================================================================== */

	@Override
	public void visitResultIgnore() {
	sb.append("/* result ignored */");
	}

	@Override
	public void visitResultInt(IntResult res) {
	sb.append("== ").append(res.getExpected());
	}

	@Override
	public void visitResultThrowExc(ThrowExResult res) {
	sb.append(String.format(
	"throws %s%s",
	abbreviateExcName(res.getExc().name()),
	res.getMessage() != null ? "(\"" + res.getMessage() + "\")" : ""));
	}

	private String abbreviateExcName(String name) {
	switch(name) {
	case "java.lang.AbstractMethodError" : return "AME";
	case "java.lang.NoSuchMethodError" : return "NSME";
	default: return name.replaceAll("java\\.lang\\.", "");
	}
	}
	/* ====================================================================== */

	@Override
	public void visitParamInt(IntParam param) {
	sb.append(param.value());
	}

	@Override
	public void visitParamString(StringParam param) {
	sb.append(param.value());
	}

	@Override
	public void visitParamNull() {
	sb.append("null");
	}
	@Override
	public void visitParamLong(LongParam param) {
	sb.append(param.value());
	}

	@Override
	public void visitParamFloat(FloatParam param) {
	sb.append(param.value());
	}

	@Override
	public void visitParamDouble(DoubleParam param) {
	sb.append(param.value());
	}

	@Override
	public void visitParamNewInstance(NewInstanceParam param) {
	sb.append(String.format(
	"new %s()",
	param.clazz().name()));
	}

	@Override
	public void visitCallMethod(CallMethod call) {
	String[] paramTypes = Util.parseDesc(call.methodDesc()).first;

	if (paramTypes.length != call.params().length) {
	throw new IllegalStateException();
	}

	//sb.append("{ ");
	if (!call.popReturnValue()) {
	sb.append("return ");
	}

	switch (call.invokeInsn()) {
	case VIRTUAL: case INTERFACE:
	sb.append(String.format(
	"((%s)%s).%s(",
	call.staticClass().name(),
	call.receiverClass() != null ? call.receiverClass().name() : "this",
	call.methodName()));
	break;
	case STATIC:
	sb.append(String.format(
	"%s.%s(",
	call.staticClass().name(),
	call.methodName()));
	break;
	case SPECIAL:
	sb.append(String.format(
	"%s.super.%s(",
	call.staticClass().name(),
	call.methodName()));
	break;
	default:
	throw new IllegalStateException();
	}

	for (int i = 0; i<paramTypes.length; i++) {
	sb.append(String.format(
	"(%s)", paramTypes[i]));

	call.params()[i].visit(this);

	if (i+1 < paramTypes.length) {
	sb.append(", ");
	}
	}

	//sb.append("); }");
	sb.append(");");
	}

	@Override
	public void visitReturnNewInstanceBody(ReturnNewInstanceBody body) {
	sb.append(String.format(
	"return new %s();",
	body.getType().name()));
	}
	}