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

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