#

# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description: 

#

from cone.public import api, plugin

from cone.validation.implmlvalidation import GlobalValidatorBase

class DuplicateTempFeatureRefValidator(GlobalValidatorBase):

    """

    Validator for checking for duplicate refs in temporary variable

    definitions.

    """

    PROBLEM_TYPES = ['model.implml.container.duplicate_tempvar']

    def validate(self):

        # Collect a dictionary of all temporary variable locations,

        # i.e. (file, lineno) tuples

        tempvar_locations_by_ref = {}

        for impl in self.context.all_impls:

            if isinstance(impl, plugin.ImplContainer):

                for td in impl._tempvar_defs:

                    lst = tempvar_locations_by_ref.get(td.ref, [])

                    lst.append((impl.ref, td.lineno))

                    tempvar_locations_by_ref[td.ref] = lst

        # Check for duplicates

        for ref, locations in tempvar_locations_by_ref.iteritems():

            if len(locations) > 1:

                for impl_file, lineno in locations:

                    prob = api.Problem(

                        msg = "Duplicate temporary variable ref '%s'" % ref,

                        type = self.PROBLEM_TYPES[0],

                        line = lineno,

                        file = impl_file)

                    self.context.problems.append(prob)

#: List of all built-in ImplML validator classes

VALIDATOR_CLASSES = [

    DuplicateTempFeatureRefValidator,

]