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1 module dmd.DsymbolTable;
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2
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114
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3 import dmd.common;
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4 import dmd.StringTable;
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5 import dmd.Dsymbol;
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6 import dmd.Identifier;
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7 import dmd.StringValue;
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8
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9 import std.stdio;
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10
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178
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11 import dmd.TObject;
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12
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13 class DsymbolTable : TObject
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14 {
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15 StringTable tab;
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16
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17 this()
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18 {
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178
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19 register();
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20 }
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21
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22 // Look up Identifier. Return Dsymbol if found, NULL if not.
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23 Dsymbol lookup(Identifier ident)
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24 {
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25 debug {
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26 assert(ident);
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27 }
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178
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28 Object* sv = tab.lookup(ident.string_);
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29 return (sv ? cast(Dsymbol)*sv : null);
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30 }
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31
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32 // Insert Dsymbol in table. Return NULL if already there.
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33 Dsymbol insert(Dsymbol s)
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34 {
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35 Identifier ident = s.ident;
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36 debug {
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37 assert(ident);
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38 }
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39
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40 return insert(ident, s);
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41 }
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42
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43 // Look for Dsymbol in table. If there, return it. If not, insert s and return that.
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44 Dsymbol update(Dsymbol s)
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45 {
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46 assert(false);
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47 }
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178
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48
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49 Dsymbol insert(Identifier ident, Dsymbol s) // when ident and s are not the same
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50 {
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178
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51 Object* sv = tab.insert(ident.toChars());
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52 if (sv is null) {
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53 return null; // already in table
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54 }
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55
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178
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56 *sv = s;
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57 return s;
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58 }
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178
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59 }
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