private void throwExceptionForNoStackElement(int size, ClassNode targetType, boolean coerce) {
if (size > 0) return;
StringBuilder sb = new StringBuilder();
sb.append("Internal compiler error while compiling ")
.append(controller.getSourceUnit().getName())
.append("\n");
MethodNode methodNode = controller.getMethodNode();
if (methodNode != null) {
sb.append("Method: ");
sb.append(methodNode);
sb.append("\n");
}
ConstructorNode constructorNode = controller.getConstructorNode();
if (constructorNode != null) {
sb.append("Constructor: ");
sb.append(methodNode);
sb.append("\n");
}
sb.append("Line ").append(controller.getLineNumber()).append(",");
sb.append(" expecting ")
.append(coerce ? "coercion" : "casting")
.append(" to ")
.append(targetType.toString(false));
sb.append(" but operand stack is empty");
throw new ArrayIndexOutOfBoundsException(sb.toString());
}
private ClassNode popWithMessage(int last) {
try {
return stack.remove(last);
} catch (ArrayIndexOutOfBoundsException ai) {
String method =
controller.getMethodNode() == null
? controller.getConstructorNode().getTypeDescriptor()
: controller.getMethodNode().getTypeDescriptor();
throw new GroovyBugError(
"Error while popping argument from operand stack tracker in class "
+ controller.getClassName()
+ " method "
+ method
+ ".");
}
}