Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / internal / elaboration / matching / Row.java

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 (file)
index 0000000..20298b4
--- /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;\r
+\r
+\r
+import org.simantics.scl.compiler.elaboration.expressions.Expression;\r
+\r
+public class Row {\r
+    Expression[] patterns;\r
+    Expression value;\r
+    \r
+    public Row(Expression[] patterns, Expression value) {\r
+        this.patterns = patterns;\r
+        this.value = value;\r
+    }\r
+    \r
+    public Row replace(int columnToReplace, Expression[] substitution) {\r
+        Expression[] newPatterns = new Expression[patterns.length-1+substitution.length];\r
+        int j=0;\r
+        for(int i=0;i<columnToReplace;++i)\r
+            newPatterns[j++] = patterns[i];\r
+        for(int i=0;i<substitution.length;++i)\r
+            newPatterns[j++] = substitution[i];\r
+        for(int i=columnToReplace+1;i<patterns.length;++i)\r
+            newPatterns[j++] = patterns[i];\r
+        return new Row(newPatterns, value);\r
+    }\r
+}\r