bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/elaboration/matching/Row.java

   1 package org.simantics.scl.compiler.internal.elaboration.matching;\r
   2 \r
   3 \r
   4 import java.util.Arrays;\r
   5 \r
   6 import org.simantics.scl.compiler.elaboration.expressions.Expression;\r
   7 \r
   8 public class Row {\r
   9     Expression[] patterns;\r
  10     Expression value;\r
  11     \r
  12     public Row(Expression[] patterns, Expression value) {\r
  13         this.patterns = patterns;\r
  14         this.value = value;\r
  15     }\r
  16     \r
  17     public Row replace(int columnToReplace, Expression[] substitution) {\r
  18         Expression[] newPatterns = new Expression[patterns.length-1+substitution.length];\r
  19         int j=0;\r
  20         for(int i=0;i<columnToReplace;++i)\r
  21             newPatterns[j++] = patterns[i];\r
  22         for(int i=0;i<substitution.length;++i)\r
  23             newPatterns[j++] = substitution[i];\r
  24         for(int i=columnToReplace+1;i<patterns.length;++i)\r
  25             newPatterns[j++] = patterns[i];\r
  26         return new Row(newPatterns, value);\r
  27     }\r
  28     \r
  29     @Override\r
  30     public String toString() {\r
  31         return Arrays.toString(patterns) + " -> " + value;\r
  32     }\r
  33 }\r