made the compiler support inner classes appearing in type names.

git-svn-id: http://anonsvn.jboss.org/repos/javassist/trunk@56 30ef5769-5b8d-40dd-aea6-55b5d6557bb3

src/main/javassist/ClassPool.java

@@ -537,7 +537,7 @@ public class ClassPool {
     void checkNotFrozen(String classname, String errmsg)
         throws RuntimeException
     {
-        CtClass c = (CtClass)classes.get(classname);
+        CtClass c = getCached(classname);
         if (c != null && c.isFrozen())
             throw new RuntimeException(errmsg);
     }
@@ -576,7 +576,7 @@ public class ClassPool {
     public synchronized CtClass get(String classname)
         throws NotFoundException
     {
-        CtClass clazz = (CtClass)classes.get(classname);
+        CtClass clazz = getCached(classname);
         if (clazz == null) {
             clazz = get0(classname);
             classes.put(classname, clazz);

src/main/javassist/ClassPoolTail.java

@@ -171,9 +171,7 @@ final class ClassPoolTail extends ClassPool {
         throw new RuntimeException("fatal error");
     }
 
-    void checkClassName(String classname)
-        throws NotFoundException
-    {
+    void checkClassName(String classname) throws NotFoundException {
         InputStream fin = openClassfile(classname);
         try {
             fin.close();

src/main/javassist/CtClass.java

@@ -35,7 +35,7 @@ public abstract class CtClass {
     /**
      * The version number of this release.
      */
-    public static final String version = "2.7 beta 3";
+    public static final String version = "2.7 beta 4";
 
     /**
      * Prints the version number and the copyright notice.
@@ -636,7 +636,7 @@ public abstract class CtClass {
     }
 
     /**
-     * Makes a class initializer (static constructor).
+     * Makes an empty class initializer (static constructor).
      * If the class already includes a class initializer,
      * this method returns it.
      *
@@ -649,7 +649,10 @@ public abstract class CtClass {
     }
 
     /**
-     * Adds a constructor.
+     * Adds a constructor.  To add a class initializer (static constructor),
+     * call <code>makeClassInitializer()</code>.
+     *
+     * @see #makeClassInitializer()
      */
     public void addConstructor(CtConstructor c)
         throws CannotCompileException

src/main/javassist/CtNewConstructor.java

@@ -24,6 +24,11 @@ import javassist.CtMethod.ConstParameter;
  * A collection of static methods for creating a <code>CtConstructor</code>.
  * An instance of this class does not make any sense.
  *
+ * <p>A class initializer (static constructor) cannot be created by the
+ * methods in this class.  Call <code>makeClassInitializer()</code> in
+ * <code>CtClass</code> and append code snippet to the body of the class
+ * initializer obtained by <code>makeClassInitializer()</code>.
+ *
  * @see CtClass#addConstructor(CtConstructor)
  */
 public class CtNewConstructor {

src/main/javassist/compiler/MemberCodeGen.java

@@ -263,7 +263,7 @@ public class MemberCodeGen extends CodeGen {
             int op = e.getOperator();
             if (op == MEMBER) {                 // static method
                 targetClass
-                    = resolver.lookupClass(((Symbol)e.oprand1()).get());
+                    = resolver.lookupClass(((Symbol)e.oprand1()).get(), false);
                 isStatic = true;
             }
             else if (op == '.') {
@@ -287,7 +287,7 @@ public class MemberCodeGen extends CodeGen {
                 }
 
                 if (arrayDim > 0)
-                    targetClass = resolver.lookupClass(javaLangObject);
+                    targetClass = resolver.lookupClass(javaLangObject, true);
                 else if (exprType == CLASS /* && arrayDim == 0 */)
                     targetClass = resolver.lookupClassByJvmName(className);
                 else
@@ -618,6 +618,7 @@ public class MemberCodeGen extends CodeGen {
             Expr e = (Expr)expr;
             int op = e.getOperator();
             if (op == MEMBER) {
+                // static member by # (extension by Javassist)
                 f = resolver.lookupField(((Symbol)e.oprand1()).get(),
                                          (Symbol)e.oprand2());
                 is_static = true;
@@ -639,18 +640,14 @@ public class MemberCodeGen extends CodeGen {
                     if (nfe.getExpr() != e.oprand1())
                         throw nfe;
 
+                    /* EXPR should be a static field.
+                     * If EXPR might be part of a qualified class name,
+                     * lookupFieldByJvmName2() throws NoFieldException.
+                     */
                     Symbol fname = (Symbol)e.oprand2();
-                    // it should be a static field.
-                    try {
-                        f = resolver.lookupFieldByJvmName(nfe.getField(),
-                                                          fname);
-                        is_static = true;
-                    }
-                    catch (CompileError ce) {
-                        // EXPR might be part of a qualified class name.
-                        throw new NoFieldException(nfe.getField() + "/"
-                                                   + fname.get(), expr);
-                    }
+                    f = resolver.lookupFieldByJvmName2(nfe.getField(),
+                                                       fname, expr);
+                    is_static = true;
                 }
             }
             else

src/main/javassist/compiler/MemberResolver.java

@@ -208,20 +208,40 @@ public class MemberResolver implements TokenId {
     }
 
     /**
+     * Only used by fieldAccess() in MemberCodeGen.
+     *
      * @param jvmClassName  a JVM class name.  e.g. java/lang/String
      */
-    public CtField lookupFieldByJvmName(String jvmClassName, Symbol fieldName)
-        throws CompileError
+    public CtField lookupFieldByJvmName2(String jvmClassName, Symbol fieldSym,
+                                         ASTree expr) throws NoFieldException
     {
-        return lookupField(jvmToJavaName(jvmClassName), fieldName);
+        String field = fieldSym.get();
+        CtClass cc = null;
+        try {
+            cc = lookupClass(jvmToJavaName(jvmClassName), true);
+        }
+        catch (CompileError e) {
+            // EXPR might be part of a qualified class name.
+            throw new NoFieldException(jvmClassName + "/" + field, expr);
+        }
+
+        try {
+            return cc.getField(field);
+        }
+        catch (NotFoundException e) {
+            // maybe an inner class.
+            jvmClassName = javaToJvmName(cc.getName());
+            throw new NoFieldException(jvmClassName + "$" + field, expr);
+        }
     }
 
-    // never used??
-    private CtField lookupField2(ASTList className, Symbol fieldName)
+    /**
+     * @param jvmClassName  a JVM class name.  e.g. java/lang/String
+     */
+    public CtField lookupFieldByJvmName(String jvmClassName, Symbol fieldName)
         throws CompileError
     {
-        return lookupField(Declarator.astToClassName(className, '.'),
-                            fieldName);
+        return lookupField(jvmToJavaName(jvmClassName), fieldName);
     }
 
     /**
@@ -230,7 +250,7 @@ public class MemberResolver implements TokenId {
     public CtField lookupField(String className, Symbol fieldName)
         throws CompileError
     {
-        CtClass cc = lookupClass(className);
+        CtClass cc = lookupClass(className, false);
         try {
             return cc.getField(fieldName.get());
         }
@@ -239,11 +259,11 @@ public class MemberResolver implements TokenId {
     }
 
     public CtClass lookupClassByName(ASTList name) throws CompileError {
-        return lookupClass(Declarator.astToClassName(name, '.'));
+        return lookupClass(Declarator.astToClassName(name, '.'), false);
     }
 
     public CtClass lookupClassByJvmName(String jvmName) throws CompileError {
-        return lookupClass(jvmToJavaName(jvmName));
+        return lookupClass(jvmToJavaName(jvmName), false);
     }
 
     public CtClass lookupClass(Declarator decl) throws CompileError {
@@ -302,15 +322,17 @@ public class MemberResolver implements TokenId {
         while (dim-- > 0)
             cname += "[]";
 
-        return lookupClass(cname);
+        return lookupClass(cname, false);
     }
 
     /**
      * @param name      a qualified class name. e.g. java.lang.String
      */
-    public CtClass lookupClass(String name) throws CompileError {
+    public CtClass lookupClass(String name, boolean notCheckInner)
+        throws CompileError
+    {
         try {
-            return classPool.get(name);
+            return lookupClass0(name, notCheckInner);
         }
         catch (NotFoundException e) {}
 
@@ -323,6 +345,28 @@ public class MemberResolver implements TokenId {
         throw new CompileError("no such class: " + name);
     }
 
+    private CtClass lookupClass0(String classname, boolean notCheckInner)
+        throws NotFoundException
+    {
+        CtClass cc = null;
+        do {
+            try {
+                cc = classPool.get(classname);
+            }
+            catch (NotFoundException e) {
+                int i = classname.lastIndexOf('.');
+                if (notCheckInner || i < 0)
+                    throw e;
+                else {
+                    StringBuffer sbuf = new StringBuffer(classname);
+                    sbuf.setCharAt(i, '$');
+                    classname = sbuf.toString();
+                }
+            }
+        } while (cc == null);
+        return cc;
+    }
+
     /* Converts a class name into a JVM-internal representation.
      *
      * It may also expand a simple class name to java.lang.*.

src/main/javassist/compiler/TypeChecker.java

@@ -441,7 +441,8 @@ public class TypeChecker extends Visitor implements Opcode, TokenId {
             int op = e.getOperator();
             if (op == MEMBER)                // static method
                 targetClass
-                        = resolver.lookupClass(((Symbol)e.oprand1()).get());
+                        = resolver.lookupClass(((Symbol)e.oprand1()).get(),
+                                               false);
             else if (op == '.') {
                 ASTree target = e.oprand1();
                 try {
@@ -458,7 +459,7 @@ public class TypeChecker extends Visitor implements Opcode, TokenId {
                 }
 
                 if (arrayDim > 0)
-                    targetClass = resolver.lookupClass(javaLangObject);
+                    targetClass = resolver.lookupClass(javaLangObject, true);
                 else if (exprType == CLASS /* && arrayDim == 0 */)
                     targetClass = resolver.lookupClassByJvmName(className);
                 else
@@ -610,17 +611,13 @@ public class TypeChecker extends Visitor implements Opcode, TokenId {
                     if (nfe.getExpr() != e.oprand1())
                         throw nfe;
 
+                    /* EXPR should be a static field.
+                     * If EXPR might be part of a qualified class name,
+                     * lookupFieldByJvmName2() throws NoFieldException.
+                     */
                     Symbol fname = (Symbol)e.oprand2();
-                    // it should be a static field.
-                    try {
-                        return resolver.lookupFieldByJvmName(nfe.getField(),
-                                                             fname);
-                    }
-                    catch (CompileError ce) {
-                        // EXPR might be part of a qualified class name.
-                        throw new NoFieldException(nfe.getField() + "/"
-                                                   + fname.get(), expr);
-                    }
+                    return resolver.lookupFieldByJvmName2(nfe.getField(),
+                                                          fname, expr);
                 }
         }