jif.extension
Class JifMethodDeclExt

java.lang.Object
  polyglot.ast.Ext_c
      jif.ast.Jif_c
          jif.extension.JifProcedureDeclExt_c
              jif.extension.JifMethodDeclExt

All Implemented Interfaces:

java.lang.Cloneable, Jif, JifProcedureDeclExt, polyglot.ast.Ext, polyglot.util.Copy

public class JifMethodDeclExt
extends JifProcedureDeclExt_c

The Jif extension of the JifMethodDecl node.

See Also:

JifMethodDecl

Nested Class Summary

protected static class

JifMethodDeclExt.CovariantLabelChecker Checker to ensure that no covariant label occurs in the label

Nested classes/interfaces inherited from class jif.extension.JifProcedureDeclExt_c

JifProcedureDeclExt_c.ConstraintVarianceLabelChecker

Field Summary

Fields inherited from class jif.ast.Jif_c

toJava, X

Fields inherited from class polyglot.ast.Ext_c

ext, node

Constructor Summary

JifMethodDeclExt(ToJavaExt toJava)

Method Summary

protected void	checkCovariance(JifMethodInstance mi, LabelChecker lc) This method checks that covariant labels are not used in contravariant positions.
polyglot.ast.Node	labelCheck(LabelChecker lc) Label check the node to which this extension is attached.
protected void	overrideMethodLabelCheck(LabelChecker lc, JifMethodInstance mi) Check that this method instance conforms to the signatures of any methods in the superclasses or interfaces that it is overriding.

Methods inherited from class jif.extension.JifProcedureDeclExt_c

addCallers, addReturnConstraints, checkActsForAuthority, checkAutoEndorseConstrainPC, checkConstraintVariance, checkEnforceSignature, checkFormals, constrainAuth, constrainLabelEnv

Methods inherited from class jif.ast.Jif_c

checkAndRemoveThrowType, checkThrowTypes, copy, getPathMap, init, integerBoundsCalculated, toJava, toJava, updatePathMap, X, X

Methods inherited from class polyglot.ast.Ext_c

dump, ext, ext, node, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface jif.ast.Jif

integerBoundsCalculated, toJava, toJava, X, X

Methods inherited from interface polyglot.ast.Ext

dump, ext, ext, init, node

Methods inherited from interface polyglot.util.Copy

copy

Constructor Detail

JifMethodDeclExt

public JifMethodDeclExt(ToJavaExt toJava)

Method Detail

labelCheck

public polyglot.ast.Node labelCheck(LabelChecker lc)
                             throws polyglot.types.SemanticException

Description copied from interface: Jif

Label check the node to which this extension is attached.

Specified by:

labelCheck in interface Jif

Overrides:

labelCheck in class Jif_c

Throws:

polyglot.types.SemanticException

checkCovariance

protected void checkCovariance(JifMethodInstance mi,
                               LabelChecker lc)
                        throws SemanticDetailedException

This method checks that covariant labels are not used in contravariant positions.

Throws:

SemanticDetailedException

overrideMethodLabelCheck

protected void overrideMethodLabelCheck(LabelChecker lc,
                                        JifMethodInstance mi)
                                 throws polyglot.types.SemanticException

Check that this method instance conforms to the signatures of any methods in the superclasses or interfaces that it is overriding. In particular, argument labels and pc bounds are contravariant, return labels, return value labels and labels on exception types are covariant.

Throws:

polyglot.types.SemanticException