dil.Compilation source code

1 /// Author: Aziz Köksal
2 /// License: GPL3
3 /// $(Maturity average)
4 module dil.Compilation;
5 
6 import dil.semantic.Types;
7 import dil.String : hashOf;
8 import dil.Tables,
9        dil.Diagnostics;
10 import common;
11 
12 /// A group of settings relevant to the compilation process.
13 class CompilationContext
14 {
15   alias CC = typeof(this);
16   CC parent;
17   cstring[] importPaths; /// Import paths.
18   cstring[] includePaths; /// String include paths.
19   uint debugLevel; /// The debug level.
20   uint versionLevel; /// The version level.
21   cstring[hash_t] debugIds; /// Set of debug identifiers.
22   cstring[hash_t] versionIds; /// Set of version identifiers.
23   bool releaseBuild; /// Build release version?
24   bool unittestBuild; /// Include unittests?
25   bool acceptDeprecated; /// Allow deprecated symbols/features?
26   uint structAlign = 4;
27 
28   Tables tables; /// Tables used by the Lexer and the semantic phase.
29 
30   Diagnostics diag; /// Diagnostics object.
31 
32   /// Constructs a CompilationContext object.
33   /// Params:
34   ///   parent = Optional parent object. Members are copied or inherited.
35   this(CC parent = null)
36   {
37     this.parent = parent;
38     if (isRoot())
39       (tables = new Tables()),
40       (diag = new Diagnostics());
41     else
42     {
43       this.importPaths = parent.importPaths.dup;
44       this.includePaths = parent.includePaths.dup;
45       this.debugLevel = parent.debugLevel;
46       this.versionLevel = parent.versionLevel;
47       this.releaseBuild = parent.releaseBuild;
48       this.structAlign = parent.structAlign;
49       this.tables = parent.tables;
50       this.diag = parent.diag;
51     }
52   }
53 
54   /// Makes accessing the tables thread-safe.
55   void threadsafeTables(bool safe)
56   {
57     tables.idents.setThreadsafe(safe);
58   }
59 
60   void addDebugId(cstring id)
61   {
62     debugIds[hashOf(id)] = id;
63   }
64 
65   void addVersionId(cstring id)
66   {
67     versionIds[hashOf(id)] = id;
68   }
69 
70   bool findDebugId(cstring id)
71   {
72     if (auto pId = hashOf(id) in debugIds)
73       return true;
74     if (!isRoot())
75       return parent.findDebugId(id);
76     return false;
77   }
78 
79   bool findVersionId(cstring id)
80   {
81     if (auto pId = hashOf(id) in versionIds)
82       return true;
83     if (!isRoot())
84       return parent.findVersionId(id);
85     return false;
86   }
87 
88   bool isRoot()
89   {
90     return parent is null;
91   }
92 }