Package com.google.auto.value.processor.escapevelocity

Class ReferenceNode

java.lang.Object

com.google.auto.value.processor.escapevelocity.Node

com.google.auto.value.processor.escapevelocity.ExpressionNode

com.google.auto.value.processor.escapevelocity.ReferenceNode

Direct Known Subclasses:

ReferenceNode.IndexReferenceNode, ReferenceNode.MemberReferenceNode, ReferenceNode.MethodReferenceNode, ReferenceNode.PlainReferenceNode

abstract class ReferenceNode
extends ExpressionNode

A node in the parse tree that is a reference. A reference is anything beginning with $, such as $x or $x[$i].foo($j).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	ReferenceNode.IndexReferenceNode	A node in the parse tree that is an indexing of a reference, like $x[0] or $x.foo[$i].
(package private) static class	ReferenceNode.MemberReferenceNode	A node in the parse tree that is a reference to a property of another reference, like $x.foo or $x[$i].foo.
(package private) static class	ReferenceNode.MethodReferenceNode	A node in the parse tree representing a method reference, like $list.size().
(package private) static class	ReferenceNode.PlainReferenceNode	A node in the parse tree that is a plain reference such as $x.

Nested classes/interfaces inherited from class com.google.auto.value.processor.escapevelocity.ExpressionNode

ExpressionNode.BinaryExpressionNode, ExpressionNode.NotExpressionNode

Field Summary

Fields

Modifier and Type	Field	Description
private static final Method	CLASS_GET_MODULE_METHOD
private static final Method	MODULE_IS_EXPORTED_METHOD
private static final String	THIS_PACKAGE

Fields inherited from class com.google.auto.value.processor.escapevelocity.Node

lineNumber, resourceName

Constructor Summary

Constructors

Constructor	Description
ReferenceNode(String resourceName, int lineNumber)

Method Summary

Modifier and Type	Method	Description
private static boolean	classIsExported(Class<?> c)
private static boolean	classIsPublic(Class<?> c)	Returns whether the given class is public as seen from this class.
(package private) Object	invokeMethod(Method method, Object target, List<Object> argValues)	Invoke the given method on the given target with the given arguments.
private static String	packageNameOf(Class<?> c)
(package private) static Method	visibleMethod(Method method, Class<?> in)	Returns a Method with the same name and parameter types as the given one, but that is in a public class or interface.

Methods inherited from class com.google.auto.value.processor.escapevelocity.ExpressionNode

intValue, isDefinedAndTrue, isTrue

Methods inherited from class com.google.auto.value.processor.escapevelocity.Node

cons, emptyNode, evaluate, evaluationException, evaluationException

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

THIS_PACKAGE

private static final String THIS_PACKAGE

CLASS_GET_MODULE_METHOD

private static final Method CLASS_GET_MODULE_METHOD

MODULE_IS_EXPORTED_METHOD

private static final Method MODULE_IS_EXPORTED_METHOD

Constructor Details

ReferenceNode

ReferenceNode(String resourceName,
 int lineNumber)

Method Details

invokeMethod

Object invokeMethod(Method method,
 Object target,
 List<Object> argValues)

Invoke the given method on the given target with the given arguments. The method is expected to be public, but the class it is in might not be. In that case we will search up the hierarchy for an ancestor that is public and has the same method, and use that to invoke the method. Otherwise we would get an IllegalAccessException. More than one ancestor might define the method, but it doesn't matter which one we invoke since ultimately the code that will run will be the same.

packageNameOf

private static String packageNameOf(Class<?> c)

visibleMethod

static Method visibleMethod(Method method,
 Class<?> in)

Returns a Method with the same name and parameter types as the given one, but that is in a public class or interface. This might be the given method, or it might be a method in a superclass or superinterface.

Returns:

a public method in a public class or interface, or null if none was found.

classIsPublic

private static boolean classIsPublic(Class<?> c)

Returns whether the given class is public as seen from this class. Prior to Java 9, a class was either public or not public. But with the introduction of modules in Java 9, a class can be marked public and yet not be visible, if it is not exported from the module it appears in. So, on Java 9, we perform an additional check on class c, which is effectively c.getModule().isExported(c.getPackageName()). We use reflection so that the code can compile on earlier Java versions.

classIsExported

private static boolean classIsExported(Class<?> c)