bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/fundeps/Fundep.java

   1 package org.simantics.scl.compiler.elaboration.fundeps;
   2
   3 import org.simantics.scl.compiler.common.exceptions.InternalCompilerError;
   4 import org.simantics.scl.compiler.internal.parsing.declarations.FundepAst;
   5
   6
   7 public class Fundep {
   8     public static final Fundep[] EMPTY_ARRAY = new Fundep[0];
   9     public final int[] from;
  10     public final int[] to;
  11
  12     public Fundep(int[] from, int[] to) {
  13         this.from = from;
  14         this.to = to;
  15     }
  16
  17     public Fundep(int[] from, int to) {
  18         this(from, new int[] {to});
  19     }
  20
  21     private static int mapParameterName(String[] parameterNames, String name) {
  22         for(int i=0;i<parameterNames.length;++i)
  23             if(parameterNames[i].equals(name))
  24                 return i;
  25         throw new InternalCompilerError("Fundep.mapParameterName error handling missing.");
  26     }
  27
  28     private static int[] mapParameterNames(String[] parameterNames, String[] names) {
  29         int[] result = new int[names.length];
  30         for(int i=0;i<names.length;++i)
  31             result[i] = mapParameterName(parameterNames, names[i]);
  32         return result;
  33     }
  34
  35     public static Fundep[] mapFundeps(String[] parameterNames, FundepAst[] fundeps) {
  36         Fundep[] result = new Fundep[fundeps.length];
  37         for(int i=0;i<fundeps.length;++i)
  38             result[i] = new Fundep(
  39                     mapParameterNames(parameterNames, fundeps[i].from),
  40                     mapParameterName(parameterNames, fundeps[i].to));
  41         return result;
  42     }
  43 }