1 // -----------------------------------------------------------------------
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2 // Copyright (c) Microsoft Corporation. All rights reserved.
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3 // -----------------------------------------------------------------------
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5 using System.ComponentModel.Composition;
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6 using System.Collections.Generic;
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7 using System.Linq.Expressions;
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8 using System.ComponentModel.Composition.Primitives;
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10 namespace System.ComponentModel.Composition.Factories
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12 partial class ImportDefinitionFactory
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14 private class DerivedImportDefinition : ImportDefinition
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16 private readonly Expression<Func<ExportDefinition, bool>> _constraint;
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17 private readonly ImportCardinality _cardinality;
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18 private readonly bool _isRecomposable;
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19 private readonly bool _isPrerequisite;
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21 public DerivedImportDefinition(Expression<Func<ExportDefinition, bool>> constraint, ImportCardinality cardinality, bool isRecomposable, bool isPrerequisite)
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23 _constraint = constraint ?? (export => false);
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24 _cardinality = cardinality;
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25 _isRecomposable = isRecomposable;
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26 _isPrerequisite = isPrerequisite;
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29 public override ImportCardinality Cardinality
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31 get { return _cardinality; }
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34 public override bool IsPrerequisite
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36 get { return _isPrerequisite; }
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39 public override bool IsRecomposable
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41 get { return _isRecomposable; }
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44 public override Expression<Func<ExportDefinition, bool>> Constraint
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46 get { return _constraint; }
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