private Character tryCharConstant(final Expression expr) {
if (expr instanceof ConstantExpression) {
ConstantExpression ce = (ConstantExpression) expr;
if (ClassHelper.STRING_TYPE.equals(ce.getType())) {
String val = (String) ce.getValue();
if (val != null && val.length() == 1) {
return val.charAt(0);
}
}
}
return null;
}
private void printField(PrintWriter out, FieldNode fieldNode, boolean isInterface) {
if ((fieldNode.getModifiers() & Opcodes.ACC_PRIVATE) != 0) return;
printAnnotations(out, fieldNode);
if (!isInterface) {
printModifiers(out, fieldNode.getModifiers());
}
ClassNode type = fieldNode.getType();
printType(out, type);
out.print(" ");
out.print(fieldNode.getName());
if (isInterface || (fieldNode.getModifiers() & Opcodes.ACC_FINAL) != 0) {
out.print(" = ");
Expression valueExpr = fieldNode.getInitialValueExpression();
if (valueExpr instanceof ConstantExpression) {
valueExpr = Verifier.transformToPrimitiveConstantIfPossible((ConstantExpression) valueExpr);
}
if (valueExpr instanceof ConstantExpression
&& fieldNode.isStatic()
&& fieldNode.isFinal()
&& ClassHelper.isStaticConstantInitializerType(valueExpr.getType())
&& valueExpr.getType().equals(fieldNode.getType())) {
// GROOVY-5150 : Initialize value with a dummy constant so that Java cross compiles
// correctly
if (ClassHelper.STRING_TYPE.equals(valueExpr.getType())) {
out.print("\"" + escapeSpecialChars(valueExpr.getText()) + "\"");
} else if (ClassHelper.char_TYPE.equals(valueExpr.getType())) {
out.print("'" + valueExpr.getText() + "'");
} else {
ClassNode constantType = valueExpr.getType();
out.print('(');
printType(out, type);
out.print(") ");
out.print(valueExpr.getText());
if (ClassHelper.Long_TYPE.equals(ClassHelper.getWrapper(constantType))) out.print('L');
}
} else if (ClassHelper.isPrimitiveType(type)) {
String val = type == ClassHelper.boolean_TYPE ? "false" : "0";
out.print("new " + ClassHelper.getWrapper(type) + "((" + type + ")" + val + ")");
} else {
out.print("null");
}
}
out.println(";");
}
private Expression transformDeclarationExpression(final BinaryExpression bin) {
Expression leftExpression = bin.getLeftExpression();
if (leftExpression instanceof VariableExpression) {
if (ClassHelper.char_TYPE.equals(((VariableExpression) leftExpression).getOriginType())) {
Expression rightExpression = bin.getRightExpression();
if (rightExpression instanceof ConstantExpression
&& ClassHelper.STRING_TYPE.equals(rightExpression.getType())) {
String text = (String) ((ConstantExpression) rightExpression).getValue();
if (text.length() == 1) {
// optimize char initialization
ConstantExpression ce = new ConstantExpression(text.charAt(0), true);
ce.setSourcePosition(rightExpression);
bin.setRightExpression(ce);
return bin;
}
}
}
}
return null;
}
