final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
// Shortcut for literal strings
Text rawText = null;
if (elementCount() == 1) {
Object content = elementAt(0);
if (content instanceof Text) {
rawText = (Text) content;
}
}
// If the content is literal text, call comment(char[],int,int) or
// comment(String), as appropriate. Otherwise, use a
// StringValueHandler to gather the textual content of the xsl:comment
// and call comment(String) with the result.
if (rawText != null) {
il.append(methodGen.loadHandler());
if (rawText.canLoadAsArrayOffsetLength()) {
rawText.loadAsArrayOffsetLength(classGen, methodGen);
final int comment =
cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
"comment",
"([CII)V");
il.append(new INVOKEINTERFACE(comment, 4));
} else {
il.append(new PUSH(cpg, rawText.getText()));
final int comment =
cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
"comment",
"(" + STRING_SIG + ")V");
il.append(new INVOKEINTERFACE(comment, 2));
}
} else {
// Save the current handler base on the stack
il.append(methodGen.loadHandler());
il.append(DUP); // first arg to "comment" call
// Get the translet's StringValueHandler
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,
"getValue",
"()" + STRING_SIG)));
// call "comment"
final int comment =
cpg.addInterfaceMethodref(TRANSLET_OUTPUT_INTERFACE,
"comment",
"(" + STRING_SIG + ")V");
il.append(new INVOKEINTERFACE(comment, 2));
// Restore old handler base from stack
il.append(methodGen.storeHandler());
}
