| Methods Summary |
|---|
| public void | display(int indent)Display variable in a full AST dump
indent(indent);
System.out.println("param " + _name);
if (_select != null) {
indent(indent + IndentIncrement);
System.out.println("select " + _select.toString());
}
displayContents(indent + IndentIncrement);
|
| public void | parseContents(com.sun.org.apache.xalan.internal.xsltc.compiler.Parser parser)Parse the contents of the element. This method must read
the 'name' (required) and 'select' (optional) attributes.
// Parse 'name' and 'select' attributes plus parameter contents
super.parseContents(parser);
// Add a ref to this param to its enclosing construct
final SyntaxTreeNode parent = getParent();
if (parent instanceof Stylesheet) {
// Mark this as a global parameter
_isLocal = false;
// Check if a global variable with this name already exists...
Param param = parser.getSymbolTable().lookupParam(_name);
// ...and if it does we need to check import precedence
if (param != null) {
final int us = this.getImportPrecedence();
final int them = param.getImportPrecedence();
// It is an error if the two have the same import precedence
if (us == them) {
final String name = _name.toString();
reportError(this, parser, ErrorMsg.VARIABLE_REDEF_ERR,name);
}
// Ignore this if previous definition has higher precedence
else if (them > us) {
_ignore = true;
return;
}
else {
param.disable();
}
}
// Add this variable if we have higher precedence
((Stylesheet)parent).addParam(this);
parser.getSymbolTable().addParam(this);
}
else if (parent instanceof Template) {
Template template = (Template) parent;
_isLocal = true;
template.addParameter(this);
if (template.isSimpleNamedTemplate()) {
_isInSimpleNamedTemplate = true;
}
}
|
| public com.sun.org.apache.bcel.internal.generic.Instruction | setLoadInstruction(com.sun.org.apache.bcel.internal.generic.Instruction instruction)Set the instruction for loading the value of this variable onto the
JVM stack and returns the old instruction.
Instruction tmp = _loadInstruction;
_loadInstruction = instruction;
return tmp;
|
| public com.sun.org.apache.bcel.internal.generic.Instruction | setStoreInstruction(com.sun.org.apache.bcel.internal.generic.Instruction instruction)Set the instruction for storing a value from the stack into this
variable and returns the old instruction.
Instruction tmp = _storeInstruction;
_storeInstruction = instruction;
return tmp;
|
| public java.lang.String | toString()Display variable as single string
return "param(" + _name + ")";
|
| public void | translate(com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator classGen, com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator methodGen)
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
if (_ignore) return;
_ignore = true;
/*
* To fix bug 24518 related to setting parameters of the form
* {namespaceuri}localName which will get mapped to an instance
* variable in the class.
*/
final String name = BasisLibrary.mapQNameToJavaName(_name.toString());
final String signature = _type.toSignature();
final String className = _type.getClassName();
if (isLocal()) {
/*
* If simple named template then generate a conditional init of the
* param using its default value:
* if (param == null) param = <default-value>
*/
if (_isInSimpleNamedTemplate) {
il.append(loadInstruction());
BranchHandle ifBlock = il.append(new IFNONNULL(null));
translateValue(classGen, methodGen);
il.append(storeInstruction());
ifBlock.setTarget(il.append(NOP));
return;
}
il.append(classGen.loadTranslet());
il.append(new PUSH(cpg, name));
translateValue(classGen, methodGen);
il.append(new PUSH(cpg, true));
// Call addParameter() from this class
il.append(new INVOKEVIRTUAL(cpg.addMethodref(TRANSLET_CLASS,
ADD_PARAMETER,
ADD_PARAMETER_SIG)));
if (className != EMPTYSTRING) {
il.append(new CHECKCAST(cpg.addClass(className)));
}
_type.translateUnBox(classGen, methodGen);
if (_refs.isEmpty()) { // nobody uses the value
il.append(_type.POP());
_local = null;
}
else { // normal case
_local = methodGen.addLocalVariable2(name,
_type.toJCType(),
il.getEnd());
// Cache the result of addParameter() in a local variable
il.append(_type.STORE(_local.getIndex()));
}
}
else {
if (classGen.containsField(name) == null) {
classGen.addField(new Field(ACC_PUBLIC, cpg.addUtf8(name),
cpg.addUtf8(signature),
null, cpg.getConstantPool()));
il.append(classGen.loadTranslet());
il.append(DUP);
il.append(new PUSH(cpg, name));
translateValue(classGen, methodGen);
il.append(new PUSH(cpg, true));
// Call addParameter() from this class
il.append(new INVOKEVIRTUAL(cpg.addMethodref(TRANSLET_CLASS,
ADD_PARAMETER,
ADD_PARAMETER_SIG)));
_type.translateUnBox(classGen, methodGen);
// Cache the result of addParameter() in a field
if (className != EMPTYSTRING) {
il.append(new CHECKCAST(cpg.addClass(className)));
}
il.append(new PUTFIELD(cpg.addFieldref(classGen.getClassName(),
name, signature)));
}
}
|
| public com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type | typeCheck(com.sun.org.apache.xalan.internal.xsltc.compiler.SymbolTable stable)Type-checks the parameter. The parameter type is determined by the
'select' expression (if present) or is a result tree if the parameter
element has a body and no 'select' expression.
if (_select != null) {
_type = _select.typeCheck(stable);
if (_type instanceof ReferenceType == false && !(_type instanceof ObjectType)) {
_select = new CastExpr(_select, Type.Reference);
}
}
else if (hasContents()) {
typeCheckContents(stable);
}
_type = Type.Reference;
// This element has no type (the parameter does, but the parameter
// element itself does not).
return Type.Void;
|
