X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Finternal%2Felaboration%2Fmatching%2FRow.java;fp=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Finternal%2Felaboration%2Fmatching%2FRow.java;h=20298b45c3e5ff080488c037a113a0f3f791b19f;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/elaboration/matching/Row.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/elaboration/matching/Row.java
new file mode 100644
index 000000000..20298b45c
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/elaboration/matching/Row.java
@@ -0,0 +1,26 @@
+package org.simantics.scl.compiler.internal.elaboration.matching;
+
+
+import org.simantics.scl.compiler.elaboration.expressions.Expression;
+
+public class Row {
+    Expression[] patterns;
+    Expression value;
+    
+    public Row(Expression[] patterns, Expression value) {
+        this.patterns = patterns;
+        this.value = value;
+    }
+    
+    public Row replace(int columnToReplace, Expression[] substitution) {
+        Expression[] newPatterns = new Expression[patterns.length-1+substitution.length];
+        int j=0;
+        for(int i=0;i<columnToReplace;++i)
+            newPatterns[j++] = patterns[i];
+        for(int i=0;i<substitution.length;++i)
+            newPatterns[j++] = substitution[i];
+        for(int i=columnToReplace+1;i<patterns.length;++i)
+            newPatterns[j++] = patterns[i];
+        return new Row(newPatterns, value);
+    }
+}