Package org.jboss.byteman.rule.expression

Class BooleanLiteral

java.lang.Object
org.jboss.byteman.rule.RuleElement
org.jboss.byteman.rule.expression.Expression
org.jboss.byteman.rule.expression.BooleanLiteral
public class BooleanLiteral extends Expression
A binary logical operator expression

  • Field Details

    • value

      private boolean value

  • Constructor Details

    • BooleanLiteral

      public BooleanLiteral(Rule rule, ParseNode token)

  • Method Details

    • bind

      public 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 possible
      Specified by:
      bind in class Expression

    • 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 class Expression
      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

    • interpret

      public Object interpret(HelperAdapter helper) throws ExecuteException
      Description copied from class: Expression
      evaluate the expression by interpreting the expression tree
      Specified by:
      interpret in class Expression
      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

    • compile

      public void compile(org.objectweb.asm.MethodVisitor mv, CompileContext compileContext) throws CompileException
      Specified by:
      compile in class RuleElement
      Throws:
      CompileException

    • writeTo

      public void writeTo(StringWriter stringWriter)
      Specified by:
      writeTo in class Expression