OCL2_ — context Classifier

def: lookupAttribute(attName : String) : Attribute =
self.allAttributes->any(me | me.name = attName)
def: lookupAssociationEnd(name : String) : AssociationEnd =
self.allAssociationEnds->any (ae | ae.name = name)
def: lookupAssociationClass(name : String) : AssociationClass =
self.allAssociationClasses->any (ae | ae.name = name)
def: lookupOperation (name: String, paramTypes: Sequence(Classifier)):
Operation =
self.allOperations->any (op | op.name = name and
op.hasMatchingSignature(paramTypes))
def: lookupSignal (sigName: String, paramTypes: Sequence(Classifier)):
Operation =
self.allReceptions.signal->any (sig | sig.name = sigName and
sig.hasMatchingSignature(paramTypes))
==> all references to operations like allAttributes are missing brackets, and the returnType of lookup-
Signal should be Signal. The whole expression should be:
context Classifier
def: lookupAttribute(attName : String) : Attribute =
self.allAttributes()->any(me | me.name = attName)
def: lookupAssociationEnd(name : String) : AssociationEnd =
self.allAssociationEnds()->any (ae | ae.name = name)
def: lookupAssociationClass(name : String) : AssociationClass =
self.allAssociationClasses()->any (ae | ae.name = name)
def: lookupOperation (name: String, paramTypes: Sequence(Classifier)):
Operation =
self.allOperations()->any (op | op.name = name and
op.hasMatchingSignature(paramTypes))
def: lookupSignal (sigName: String, paramTypes: Sequence(Classifier)):
Signal =
self.allReceptions().signal->any (sig | sig.name = sigName and
sig.hasMatchingSignature(paramTypes))

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