protected Map<TemplateParameter, ParameterableElement> getIterationBindings(
Iteration candidateIteration) {
Type sourceType = this.sourceType;
if (!(sourceType instanceof CollectionType)
&& (candidateIteration.getOwningType() instanceof CollectionType)) {
sourceType = metaModelManager.getCollectionType("Set", sourceType); // Implicit oclAsSet()
}
if (!(sourceType instanceof CollectionType)) { // May be InvalidType
return null;
}
HashMap<TemplateParameter, ParameterableElement> bindings =
new HashMap<TemplateParameter, ParameterableElement>();
bindings.put(
candidateIteration.getOwningType().getOwnedTemplateSignature().getOwnedParameter().get(0),
((CollectionType) sourceType).getElementType());
PivotUtil.getAllTemplateParameterSubstitutions(bindings, sourceType);
TemplateSignature templateSignature = candidateIteration.getOwnedTemplateSignature();
if (templateSignature != null) {
List<TemplateParameter> templateParameters = templateSignature.getOwnedParameter();
int accIndex = 0;
for (NavigatingArgCS csArgument : csArguments) {
if (csArgument.getRole() == NavigationRole.ACCUMULATOR) {
if (accIndex < templateParameters.size()) {
Variable argument = PivotUtil.getPivot(Variable.class, csArgument);
Type argumentType = argument.getType();
TemplateParameter accParameter = templateParameters.get(accIndex);
bindings.put(accParameter, argumentType);
}
accIndex++;
}
}
}
return bindings;
}
