@joebigelow / wix-1
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1 // Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
2
3 namespace WixToolset.Core.Link
4 {
5 using System;
6 using System.Collections.Generic;
7 using System.Diagnostics;
8 using System.Linq;
9 using WixToolset.Data;
10 using WixToolset.Data.Symbols;
11
12 /// <summary>
13 /// Symbol with section representing a single unique symbol.
14 /// </summary>
15 [DebuggerDisplay("{Symbol.DebuggerDisplay}")]
16 internal class SymbolWithSection
17 {
18 private List<WixSimpleReferenceSymbol> directReferences;
19 private HashSet<SymbolWithSection> possibleConflicts;
20
21 /// <summary>
22 /// Creates a symbol for a symbol.
23 /// </summary>
24 /// <param name="section"></param>
25 /// <param name="symbol">Symbol for the symbol</param>
26 public SymbolWithSection(IntermediateSection section, IntermediateSymbol symbol)
27 {
28 this.Symbol = symbol;
29 this.Section = section;
30 }
31
32 /// <summary>
33 /// Gets the accessibility of the symbol which is a direct reflection of the accessibility of the row's accessibility.
34 /// </summary>
35 /// <value>Accessbility of the symbol.</value>
36 public AccessModifier Access => this.Symbol.Id.Access;
37
38 /// <summary>
39 /// Gets the symbol for this symbol.
40 /// </summary>
41 /// <value>Symbol for this symbol.</value>
42 public IntermediateSymbol Symbol { get; }
43
44 /// <summary>
45 /// Gets the section for the symbol.
46 /// </summary>
47 /// <value>Section for the symbol.</value>
48 public IntermediateSection Section { get; }
49
50 /// <summary>
51 /// Gets any duplicates of this symbol with sections that are possible conflicts.
52 /// </summary>
53 public IEnumerable<WixSimpleReferenceSymbol> DirectReferences => this.directReferences ?? Enumerable.Empty<WixSimpleReferenceSymbol>();
54
55 /// <summary>
56 /// Gets any duplicates of this symbol with sections that are possible conflicts.
57 /// </summary>
58 public IEnumerable<SymbolWithSection> PossiblyConflicts => this.possibleConflicts ?? Enumerable.Empty<SymbolWithSection>();
59
60 /// <summary>
61 /// Gets the virtual symbol that is overridden by this symbol.
62 /// </summary>
63 public SymbolWithSection Overrides { get; private set; }
64
65 /// <summary>
66 /// Adds a duplicate symbol with sections that is a possible conflict.
67 /// </summary>
68 /// <param name="symbolWithSection">Symbol with section that is a possible conflict of this symbol.</param>
69 public void AddPossibleConflict(SymbolWithSection symbolWithSection)
70 {
71 if (null == this.possibleConflicts)
72 {
73 this.possibleConflicts = new HashSet<SymbolWithSection>();
74 }
75
76 this.possibleConflicts.Add(symbolWithSection);
77 }
78
79 /// <summary>
80 /// Adds a reference that directly points to this symbol.
81 /// </summary>
82 /// <param name="reference">The direct reference.</param>
83 public void AddDirectReference(WixSimpleReferenceSymbol reference)
84 {
85 if (null == this.directReferences)
86 {
87 this.directReferences = new List<WixSimpleReferenceSymbol>();
88 }
89
90 this.directReferences.Add(reference);
91 }
92
93 /// <summary>
94 /// Override a virtual symbol.
95 /// </summary>
96 /// <param name="virtualSymbolWithSection">Virtual symbol with section that is being overridden.</param>
97 public void OverrideVirtualSymbol(SymbolWithSection virtualSymbolWithSection)
98 {
99 if (virtualSymbolWithSection.Access != AccessModifier.Virtual)
100 {
101 throw new InvalidOperationException("Cannot override non-virtual symbols");
102 }
103
104 this.Overrides = virtualSymbolWithSection;
105 }
106
107 /// <summary>
108 /// Gets the full name of the symbol.
109 /// </summary>
110 public string GetFullName()
111 {
112 return String.Concat(this.Symbol.Definition.Name, ":", this.Symbol.Id.Id);
113 }
114 }
115 }