Java ConstantPoolGen.addMethodref方法代码示例

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * Translate the fallback element (if any).
 */
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    if (_fallbacks != null) {
        int count = _fallbacks.size();
        for (int i = 0; i < count; i++) {
            Fallback fallback = (Fallback)_fallbacks.elementAt(i);
            fallback.translate(classGen, methodGen);
        }
    }
    // We only go into the else block in forward-compatibility mode, when
    // the unsupported element has no fallback.
    else {
        // If the unsupported element does not have any fallback child, then
        // at runtime, a runtime error should be raised when the unsupported
        // element is instantiated. Otherwise, no error is thrown.
        ConstantPoolGen cpg = classGen.getConstantPool();
        InstructionList il = methodGen.getInstructionList();

        final int unsupportedElem = cpg.addMethodref(BASIS_LIBRARY_CLASS, "unsupported_ElementF",
                                                     "(" + STRING_SIG + "Z)V");
        il.append(new PUSH(cpg, getQName().toString()));
        il.append(new PUSH(cpg, _isExtension));
        il.append(new INVOKESTATIC(unsupportedElem));
    }
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * Compiles the default handling for DOM elements: traverse all children
 */
private InstructionList compileDefaultRecursion(ClassGenerator classGen,
                                                MethodGenerator methodGen,
                                                InstructionHandle next) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = new InstructionList();
    final String applyTemplatesSig = classGen.getApplyTemplatesSig();
    final int git = cpg.addInterfaceMethodref(DOM_INTF,
                                              GET_CHILDREN,
                                              GET_CHILDREN_SIG);
    final int applyTemplates = cpg.addMethodref(getClassName(),
                                                functionName(),
                                                applyTemplatesSig);
    il.append(classGen.loadTranslet());
    il.append(methodGen.loadDOM());

    il.append(methodGen.loadDOM());
    il.append(new ILOAD(_currentIndex));
    il.append(new INVOKEINTERFACE(git, 2));
    il.append(methodGen.loadHandler());
    il.append(new INVOKEVIRTUAL(applyTemplates));
    il.append(new GOTO_W(next));
    return il;
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * Remove the mapping of this variable to a register.
 * Called when we leave the AST scope of the variable's declaration
 */
public void unmapRegister(ClassGenerator classGen, MethodGenerator methodGen) {
    if (_local != null) {
        if (_type instanceof ResultTreeType) {
            final ConstantPoolGen cpg = classGen.getConstantPool();
            final InstructionList il = methodGen.getInstructionList();
            if (classGen.getStylesheet().callsNodeset() && classGen.getDOMClass().equals(MULTI_DOM_CLASS)) {
                final int removeDA = cpg.addMethodref(MULTI_DOM_CLASS, "removeDOMAdapter", "(" + DOM_ADAPTER_SIG + ")V");
                il.append(methodGen.loadDOM());
                il.append(new CHECKCAST(cpg.addClass(MULTI_DOM_CLASS)));
                il.append(loadInstruction());
                il.append(new CHECKCAST(cpg.addClass(DOM_ADAPTER_CLASS)));
                il.append(new INVOKEVIRTUAL(removeDA));
            }
            final int release = cpg.addInterfaceMethodref(DOM_IMPL_CLASS, "release", "()V");
            il.append(loadInstruction());
            il.append(new INVOKEINTERFACE(release, 1));
        }

        _local.setEnd(methodGen.getInstructionList().getEnd());
        methodGen.removeLocalVariable(_local);
        _refs = null;
        _local = null;
    }
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * Casts a reference into a NodeIterator.
 *
 * @see     com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type#translateTo
 */
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
                        NodeSetType type) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    int index = cpg.addMethodref(BASIS_LIBRARY_CLASS, "referenceToNodeSet",
                                 "("
                                 + OBJECT_SIG
                                 + ")"
                                 + NODE_ITERATOR_SIG);
    il.append(new INVOKESTATIC(index));

    // Reset this iterator
    index = cpg.addInterfaceMethodref(NODE_ITERATOR, RESET, RESET_SIG);
    il.append(new INVOKEINTERFACE(index, 1));
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * This method is called when the constructor is compiled in
 * Stylesheet.compileConstructor() and not as the syntax tree is traversed.
 */
public void translate(ClassGenerator classGen,
                      MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();

    final int tst = cpg.addMethodref(BASIS_LIBRARY_CLASS,
                                     "testLanguage",
                                     "("+STRING_SIG+DOM_INTF_SIG+"I)Z");
    _lang.translate(classGen,methodGen);
    il.append(methodGen.loadDOM());
    if (classGen instanceof FilterGenerator)
        il.append(new ILOAD(1));
    else
        il.append(methodGen.loadContextNode());
    il.append(new INVOKESTATIC(tst));
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * Expects a node on the stack and pushes a singleton node-set. Singleton
 * iterators are already started after construction.
 *
 * @see     com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type#translateTo
 */
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
                        NodeSetType type) {
    ConstantPoolGen cpg = classGen.getConstantPool();
    InstructionList il = methodGen.getInstructionList();

    // Create a new instance of SingletonIterator
    il.append(new NEW(cpg.addClass(SINGLETON_ITERATOR)));
    il.append(DUP_X1);
    il.append(SWAP);
    final int init = cpg.addMethodref(SINGLETON_ITERATOR, "<init>",
                                      "(" + NODE_SIG +")V");
    il.append(new INVOKESPECIAL(init));
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    if (hasNodeSetArgs() || hasReferenceArgs()) {
        final ConstantPoolGen cpg = classGen.getConstantPool();
        final InstructionList il = methodGen.getInstructionList();

        // Call compare() from the BasisLibrary
        _left.translate(classGen, methodGen);
        _left.startIterator(classGen, methodGen);
        _right.translate(classGen, methodGen);
        _right.startIterator(classGen, methodGen);

        il.append(new PUSH(cpg, _op));
        il.append(methodGen.loadDOM());

        int index = cpg.addMethodref(BASIS_LIBRARY_CLASS, "compare",
                                     "("
                                     + _left.getType().toSignature()
                                     + _right.getType().toSignature()
                                     + "I"
                                     + DOM_INTF_SIG
                                     + ")Z");
        il.append(new INVOKESTATIC(index));
    }
    else {
        translateDesynthesized(classGen, methodGen);
        synthesize(classGen, methodGen);
    }
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * Generate a call to the method compiled for this attribute set
 */
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {

    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final SymbolTable symbolTable = getParser().getSymbolTable();

    // Go through each attribute set and generate a method call
    for (int i=0; i<_sets.size(); i++) {
        // Get the attribute set name
        final QName name = (QName)_sets.elementAt(i);
        // Get the AttributeSet reference from the symbol table
        final AttributeSet attrs = symbolTable.lookupAttributeSet(name);
        // Compile the call to the set's method if the set exists
        if (attrs != null) {
            final String methodName = attrs.getMethodName();
            il.append(classGen.loadTranslet());
            il.append(methodGen.loadDOM());
            il.append(methodGen.loadIterator());
            il.append(methodGen.loadHandler());
            il.append(methodGen.loadCurrentNode());
            final int method = cpg.addMethodref(classGen.getClassName(),
                                                methodName, ATTR_SET_SIG);
            il.append(new INVOKESPECIAL(method));
        }
        // Generate an error if the attribute set does not exist
        else {
            final Parser parser = getParser();
            final String atrs = name.toString();
            reportError(this, parser, ErrorMsg.ATTRIBSET_UNDEF_ERR, atrs);
        }
    }
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * Casts a reference into a ResultTree.
 *
 * @see     com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type#translateTo
 */
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
                        ResultTreeType type) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    int index = cpg.addMethodref(BASIS_LIBRARY_CLASS, "referenceToResultTree",
                                 "(" + OBJECT_SIG + ")" + DOM_INTF_SIG);
    il.append(new INVOKESTATIC(index));
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
private void generateAddReads(ClassGenerator classGen, MethodGenerator methodGen,
                      String clazz) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();

    // Generate call to Module.addReads:
    //   <TransletClass>.class.getModule().addReads(
    //        Class.forName(<clazz>).getModule());
    // Class.forName may throw ClassNotFoundException.
    // This is OK as it will caught higher up the stack in
    // TransformerImpl.transform() and wrapped into a
    // TransformerException.
    methodGen.markChunkStart();

    int index = cpg.addMethodref(CLASS_CLASS,
                                 GET_MODULE,
                                 GET_MODULE_SIG);
    int index2 = cpg.addMethodref(CLASS_CLASS,
                                  FOR_NAME,
                                  FOR_NAME_SIG);
    il.append(new LDC(cpg.addString(classGen.getClassName())));
    il.append(new INVOKESTATIC(index2));
    il.append(new INVOKEVIRTUAL(index));
    il.append(new LDC(cpg.addString(clazz)));
    il.append(new INVOKESTATIC(index2));
    il.append(new INVOKEVIRTUAL(index));
    index = cpg.addMethodref(MODULE_CLASS,
                             ADD_READS,
                             ADD_READS_SIG);
    il.append(new INVOKEVIRTUAL(index));
    il.append(InstructionConst.POP);

    methodGen.markChunkEnd();
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * Translate code to call the BasisLibrary.unallowed_extensionF(String)
 * method.
 */
private void translateUnallowedExtension(ConstantPoolGen cpg,
                                         InstructionList il) {
    int index = cpg.addMethodref(BASIS_LIBRARY_CLASS,
                                 "unallowed_extension_functionF",
                                 "(Ljava/lang/String;)V");
    il.append(new PUSH(cpg, _fname.toString()));
    il.append(new INVOKESTATIC(index));
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();

    if (!_isLiteral) {
        // if the ncname is an AVT, then the ncname has to be checked at runtime if it is a valid ncname
        LocalVariableGen nameValue =
                methodGen.addLocalVariable2("nameValue",
        Util.getJCRefType(STRING_SIG),
                                            null);

        // store the name into a variable first so _name.translate only needs to be called once
        _name.translate(classGen, methodGen);
        nameValue.setStart(il.append(new ASTORE(nameValue.getIndex())));
        il.append(new ALOAD(nameValue.getIndex()));

        // call checkNCName if the name is an AVT
        final int check = cpg.addMethodref(BASIS_LIBRARY_CLASS, "checkNCName",
                            "("
                            +STRING_SIG
                            +")V");
                            il.append(new INVOKESTATIC(check));

        // Save the current handler base on the stack
        il.append(methodGen.loadHandler());
        il.append(DUP);     // first arg to "attributes" call

        // load name value again
        nameValue.setEnd(il.append(new ALOAD(nameValue.getIndex())));
    } else {
        // Save the current handler base on the stack
        il.append(methodGen.loadHandler());
        il.append(DUP);     // first arg to "attributes" call

        // Push attribute name
        _name.translate(classGen, methodGen);// 2nd arg

    }

    il.append(classGen.loadTranslet());
    il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
                                           "stringValueHandler",
                                           STRING_VALUE_HANDLER_SIG)));
    il.append(DUP);
    il.append(methodGen.storeHandler());

    // translate contents with substituted handler
    translateContents(classGen, methodGen);

    // get String out of the handler
    il.append(new INVOKEVIRTUAL(cpg.addMethodref(STRING_VALUE_HANDLER,
                                                 "getValueOfPI",
                                                 "()" + STRING_SIG)));
    // call "processingInstruction"
    final int processingInstruction =
        cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
                                  "processingInstruction",
                                  "(" + STRING_SIG + STRING_SIG + ")V");
    il.append(new INVOKEINTERFACE(processingInstruction, 3));
    // Restore old handler base from stack
    il.append(methodGen.storeHandler());
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final Type tselect = _select.getType();

    final String CPY1_SIG = "("+NODE_ITERATOR_SIG+TRANSLET_OUTPUT_SIG+")V";
    final int cpy1 = cpg.addInterfaceMethodref(DOM_INTF, "copy", CPY1_SIG);

    final String CPY2_SIG = "("+NODE_SIG+TRANSLET_OUTPUT_SIG+")V";
    final int cpy2 = cpg.addInterfaceMethodref(DOM_INTF, "copy", CPY2_SIG);

    final String getDoc_SIG = "()"+NODE_SIG;
    final int getDoc = cpg.addInterfaceMethodref(DOM_INTF, "getDocument", getDoc_SIG);


    if (tselect instanceof NodeSetType) {
        il.append(methodGen.loadDOM());

        // push NodeIterator
        _select.translate(classGen, methodGen);
        _select.startIterator(classGen, methodGen);

        // call copy from the DOM 'library'
        il.append(methodGen.loadHandler());
        il.append(new INVOKEINTERFACE(cpy1, 3));
    }
    else if (tselect instanceof NodeType) {
        il.append(methodGen.loadDOM());
        _select.translate(classGen, methodGen);
        il.append(methodGen.loadHandler());
        il.append(new INVOKEINTERFACE(cpy2, 3));
    }
    else if (tselect instanceof ResultTreeType) {
        _select.translate(classGen, methodGen);
        // We want the whole tree, so we start with the root node
        il.append(DUP); //need a pointer to the DOM ;
        il.append(new INVOKEINTERFACE(getDoc,1)); //ICONST_0);
        il.append(methodGen.loadHandler());
        il.append(new INVOKEINTERFACE(cpy2, 3));
    }
    else if (tselect instanceof ReferenceType) {
        _select.translate(classGen, methodGen);
        il.append(methodGen.loadHandler());
        il.append(methodGen.loadCurrentNode());
        il.append(methodGen.loadDOM());
        final int copy = cpg.addMethodref(BASIS_LIBRARY_CLASS, "copy",
                                          "("
                                          + OBJECT_SIG
                                          + TRANSLET_OUTPUT_SIG
                                          + NODE_SIG
                                          + DOM_INTF_SIG
                                          + ")V");
        il.append(new INVOKESTATIC(copy));
    }
    else {
        il.append(classGen.loadTranslet());
        _select.translate(classGen, methodGen);
        il.append(methodGen.loadHandler());
        il.append(new INVOKEVIRTUAL(cpg.addMethodref(TRANSLET_CLASS,
                                                     CHARACTERSW,
                                                     CHARACTERSW_SIG)));
    }

}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * At runtime the compilation of xsl:element results in code that: (i)
 * evaluates the avt for the name, (ii) checks for a prefix in the name
 * (iii) generates a new prefix and create a new qname when necessary
 * (iv) calls startElement() on the handler (v) looks up a uri in the XML
 * when the prefix is not known at compile time (vi) calls namespace()
 * on the handler (vii) evaluates the contents (viii) calls endElement().
 */
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
    LocalVariableGen local = null;
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();

    // Optimize translation if element name is a literal
    if (_isLiteralName) {
        translateLiteral(classGen, methodGen);
        return;
    }

    if (!_ignore) {

        // if the qname is an AVT, then the qname has to be checked at runtime if it is a valid qname
        LocalVariableGen nameValue =
                methodGen.addLocalVariable2("nameValue",
                                            Util.getJCRefType(STRING_SIG),
                                            null);

        // store the name into a variable first so _name.translate only needs to be called once
        _name.translate(classGen, methodGen);
        nameValue.setStart(il.append(new ASTORE(nameValue.getIndex())));
        il.append(new ALOAD(nameValue.getIndex()));

        // call checkQName if the name is an AVT
        final int check = cpg.addMethodref(BASIS_LIBRARY_CLASS, "checkQName",
                        "("
                        +STRING_SIG
                        +")V");
        il.append(new INVOKESTATIC(check));

        // Push handler for call to endElement()
        il.append(methodGen.loadHandler());

        // load name value again
        nameValue.setEnd(il.append(new ALOAD(nameValue.getIndex())));

        if (_namespace != null) {
            _namespace.translate(classGen, methodGen);
        }
        else {
            il.append(ACONST_NULL);
        }

        // Push additional arguments
        il.append(methodGen.loadHandler());
        il.append(methodGen.loadDOM());
        il.append(methodGen.loadCurrentNode());

        // Invoke BasisLibrary.startXslElemCheckQName()
        il.append(new INVOKESTATIC(
        cpg.addMethodref(BASIS_LIBRARY_CLASS, "startXslElement",
                "(" + STRING_SIG
                + STRING_SIG
                + TRANSLET_OUTPUT_SIG
                + DOM_INTF_SIG + "I)" + STRING_SIG)));


    }

    translateContents(classGen, methodGen);

    if (!_ignore) {
        il.append(methodGen.endElement());
    }
}
 

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen; //导入方法依赖的package包/类
/**
 * This method is called when the constructor is compiled in
 * Stylesheet.compileConstructor() and not as the syntax tree is traversed.
 */
public void translate(ClassGenerator classGen,
                      MethodGenerator methodGen) {

    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();

    // Returns the KeyIndex object of a given name
    final int getKeyIndex = cpg.addMethodref(TRANSLET_CLASS,
                                             "getKeyIndex",
                                             "(Ljava/lang/String;)"+
                                             KEY_INDEX_SIG);

    // Initialises a KeyIndex to return nodes with specific values
    final int lookupId = cpg.addMethodref(KEY_INDEX_CLASS,
                                          "containsID",
                                          "(ILjava/lang/Object;)I");
    final int lookupKey = cpg.addMethodref(KEY_INDEX_CLASS,
                                           "containsKey",
                                           "(ILjava/lang/Object;)I");
    final int getNodeIdent = cpg.addInterfaceMethodref(DOM_INTF,
                                                       "getNodeIdent",
                                                       "(I)"+NODE_SIG);

    // Call getKeyIndex in AbstractTranslet with the name of the key
    // to get the index for this key (which is also a node iterator).
    il.append(classGen.loadTranslet());
    il.append(new PUSH(cpg,_index));
    il.append(new INVOKEVIRTUAL(getKeyIndex));

    // Now use the value in the second argument to determine what nodes
    // the iterator should return.
    il.append(SWAP);
    il.append(new PUSH(cpg,_value));
    if (this instanceof IdPattern)
    {
        il.append(new INVOKEVIRTUAL(lookupId));
    }
    else
    {
        il.append(new INVOKEVIRTUAL(lookupKey));
    }

    _trueList.add(il.append(new IFNE(null)));
    _falseList.add(il.append(new GOTO(null)));
}