Class ClassLiteralExpression
- java.lang.Object
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- org.jboss.byteman.rule.RuleElement
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- org.jboss.byteman.rule.expression.Expression
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- org.jboss.byteman.rule.expression.ClassLiteralExpression
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public class ClassLiteralExpression extends Expression
Clas modelling a class literal of the form foo.bar.baz.Mumble.class
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Field Summary
Fields Modifier and Type Field Description private int
classIndex
index used by compiled code when referring to a non-public class.private java.lang.reflect.Field
field
private boolean
isPublicClass
true if this is a public class otherwise falseprivate Type
ownerType
private java.lang.String[]
pathList
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Constructor Summary
Constructors Constructor Description ClassLiteralExpression(Rule rule, Type type, ParseNode pathTree, java.lang.String[] pathList)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
bind()
verify that variables mentioned in this expression are actually available in the supplied bindings list and infer/validate the type of this expression or its subexpressions where possiblevoid
compile(org.objectweb.asm.MethodVisitor mv, CompileContext compileContext)
java.lang.String
getPath(int len)
java.lang.Object
interpret(HelperAdapter helper)
evaluate the expression by interpreting the expression treeType
typeCheck(Type expected)
ensure that all type references in the expression and its component expressions can be resolved, that the type of the expression is well-defined and that it is compatible with the type expected in the context in which it occurs.void
writeTo(java.io.StringWriter stringWriter)
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Methods inherited from class org.jboss.byteman.rule.expression.Expression
getPos, getType
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Methods inherited from class org.jboss.byteman.rule.RuleElement
getBindings, getTypeGroup, rebox, toString
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Field Detail
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pathList
private java.lang.String[] pathList
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ownerType
private Type ownerType
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field
private java.lang.reflect.Field field
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isPublicClass
private boolean isPublicClass
true if this is a public class otherwise false
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classIndex
private int classIndex
index used by compiled code when referring to a non-public class.
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Method Detail
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bind
public void bind() throws TypeException
verify that variables mentioned in this expression are actually available in the supplied bindings list and infer/validate the type of this expression or its subexpressions where possible- Specified by:
bind
in classExpression
- Throws:
TypeException
- if any variable is missing or has the wrong type
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typeCheck
public Type typeCheck(Type expected) throws TypeException
Description copied from class:Expression
ensure that all type references in the expression and its component expressions can be resolved, that the type of the expression is well-defined and that it is compatible with the type expected in the context in which it occurs.- Specified by:
typeCheck
in classExpression
- Parameters:
expected
- the type expected for the expression in the contxet in which it occurs. this may be void but should not be undefined at the point where type checking is performed.- Returns:
- the type of the expression
- Throws:
TypeException
- if a type check failure occurs
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interpret
public java.lang.Object interpret(HelperAdapter helper) throws ExecuteException
Description copied from class:Expression
evaluate the expression by interpreting the expression tree- Specified by:
interpret
in classExpression
- Parameters:
helper
- an execution context associated with the rule which contains a map of current bindings for rule variables and another map of their declared types both of which are indexed by variable name. This includes entries for the helper (name "-1"), the recipient if the trigger method is not static (name "0") and the trigger method arguments (names "1", ...)- Returns:
- the result of evaluation as an Object
- Throws:
ExecuteException
- if an error occurs during execution
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compile
public void compile(org.objectweb.asm.MethodVisitor mv, CompileContext compileContext) throws CompileException
- Specified by:
compile
in classRuleElement
- Throws:
CompileException
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getPath
public java.lang.String getPath(int len)
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writeTo
public void writeTo(java.io.StringWriter stringWriter)
- Specified by:
writeTo
in classExpression
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