/** * This method is part of a little trick that is needed to use local * variables inside nested for-each loops. See the initializeVariables() * method in the ForEach class for an explanation */ public void initialize(ClassGenerator classGen, MethodGenerator methodGen) { final ConstantPoolGen cpg = classGen.getConstantPool(); final InstructionList il = methodGen.getInstructionList(); // This is only done for local variables that are actually used if (isLocal() && !_refs.isEmpty()) { // Create a variable slot if none is allocated if (_local == null) { _local = methodGen.addLocalVariable2(getEscapedName(), _type.toJCType(), null); } // Push the default value on the JVM's stack if ((_type instanceof IntType) || (_type instanceof NodeType) || (_type instanceof BooleanType)) il.append(new ICONST(0)); // 0 for node-id, integer and boolean else if (_type instanceof RealType) il.append(new DCONST(0)); // 0.0 for floating point numbers else il.append(new ACONST_NULL()); // and 'null' for anything else // Mark the store as the start of the live range of the variable _local.setStart(il.append(_type.STORE(_local.getIndex()))); } }
if (isLocal()) {
/** * This method is part of a little trick that is needed to use local * variables inside nested for-each loops. See the initializeVariables() * method in the ForEach class for an explanation */ public void initialize(ClassGenerator classGen, MethodGenerator methodGen) { final ConstantPoolGen cpg = classGen.getConstantPool(); final InstructionList il = methodGen.getInstructionList(); // This is only done for local variables that are actually used if (isLocal() && !_refs.isEmpty()) { // Create a variable slot if none is allocated if (_local == null) { _local = methodGen.addLocalVariable2(getEscapedName(), _type.toJCType(), null); } // Push the default value on the JVM's stack if ((_type instanceof IntType) || (_type instanceof NodeType) || (_type instanceof BooleanType)) il.append(new ICONST(0)); // 0 for node-id, integer and boolean else if (_type instanceof RealType) il.append(new DCONST(0)); // 0.0 for floating point numbers else il.append(new ACONST_NULL()); // and 'null' for anything else // Mark the store as the start of the live range of the variable _local.setStart(il.append(_type.STORE(_local.getIndex()))); } }