Examples with PyResolveResultRater com.jetbrains.python.psi.impl.PyResolveResultRater used on opensource projects

Example 1 with PyResolveResultRater

use of com.jetbrains.python.psi.impl.PyResolveResultRater in project intellij-community by JetBrains.

the class PyClassTypeImpl method doResolveMember.

@Nullable
private List<? extends RatedResolveResult> doResolveMember(@NotNull String name, @Nullable PyExpression location, @NotNull AccessDirection direction, @NotNull PyResolveContext resolveContext, boolean inherited) {
    final TypeEvalContext context = resolveContext.getTypeEvalContext();
    PsiElement classMember = //overriding members provers have priority to normal resolve
    resolveByOverridingMembersProviders(this, name, location, context);
    if (classMember != null) {
        return ResolveResultList.to(classMember);
    }
    if (resolveContext.allowProperties()) {
        final Ref<ResolveResultList> resultRef = findProperty(name, direction, true, resolveContext.getTypeEvalContext());
        if (resultRef != null) {
            return resultRef.get();
        }
    }
    if ("super".equals(getClassQName()) && isBuiltin() && location instanceof PyCallExpression) {
        // methods of super() call are not of class super!
        PyExpression first_arg = ((PyCallExpression) location).getArgument(0, PyExpression.class);
        if (first_arg != null) {
            // the usual case: first arg is the derived class that super() is proxying for
            PyType first_arg_type = context.getType(first_arg);
            if (first_arg_type instanceof PyClassType) {
                PyClass derived_class = ((PyClassType) first_arg_type).getPyClass();
                final Iterator<PyClass> base_it = derived_class.getAncestorClasses(context).iterator();
                if (base_it.hasNext()) {
                    return new PyClassTypeImpl(base_it.next(), true).resolveMember(name, location, direction, resolveContext);
                } else {
                    // no base classes = super() cannot proxy anything meaningful from a base class
                    return null;
                }
            }
        }
    }
    final List<? extends RatedResolveResult> classMembers = resolveInner(myClass, myIsDefinition, name, location);
    if (PyNames.__CLASS__.equals(name)) {
        return resolveDunderClass(context, classMembers);
    }
    if (!classMembers.isEmpty()) {
        return classMembers;
    }
    if (PyNames.DOC.equals(name)) {
        return Optional.ofNullable(PyBuiltinCache.getInstance(myClass).getObjectType()).map(type -> type.resolveMember(name, location, direction, resolveContext)).orElse(Collections.emptyList());
    }
    classMember = resolveByOverridingAncestorsMembersProviders(this, name, location);
    if (classMember != null) {
        final ResolveResultList list = new ResolveResultList();
        int rate = RatedResolveResult.RATE_NORMAL;
        for (PyResolveResultRater rater : Extensions.getExtensions(PyResolveResultRater.EP_NAME)) {
            rate += rater.getMemberRate(classMember, this, context);
        }
        list.poke(classMember, rate);
        return list;
    }
    if (inherited) {
        for (PyClassLikeType type : myClass.getAncestorTypes(context)) {
            if (type instanceof PyClassType) {
                if (!myIsDefinition) {
                    type = type.toInstance();
                }
                final List<? extends RatedResolveResult> superMembers = resolveInner(((PyClassType) type).getPyClass(), myIsDefinition, name, location);
                if (!superMembers.isEmpty()) {
                    return superMembers;
                }
            }
            if (type != null) {
                final List<? extends RatedResolveResult> results = type.resolveMember(name, location, direction, resolveContext, false);
                if (results != null && !results.isEmpty()) {
                    return results;
                }
            }
        }
    }
    if (inherited && !PyNames.INIT.equals(name) && !PyNames.NEW.equals(name)) {
        final List<? extends RatedResolveResult> typeMembers = resolveMetaClassMember(name, location, direction, resolveContext);
        if (typeMembers != null) {
            return typeMembers;
        }
    }
    if (inherited) {
        classMember = resolveByMembersProviders(this, name, location, //ask providers after real class introspection as providers have less priority
        context);
    }
    if (classMember != null) {
        return ResolveResultList.to(classMember);
    }
    if (inherited) {
        for (PyClassLikeType type : myClass.getAncestorTypes(context)) {
            if (type instanceof PyClassType) {
                final PyClass pyClass = ((PyClassType) type).getPyClass();
                PsiElement superMember = resolveByMembersProviders(new PyClassTypeImpl(pyClass, isDefinition()), name, location, resolveContext.getTypeEvalContext());
                if (superMember != null) {
                    return ResolveResultList.to(superMember);
                }
            }
        }
    }
    return Collections.emptyList();
}