Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / environment / filter / NegativeNamespaceFilter.java

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/environment/filter/NegativeNamespaceFilter.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/environment/filter/NegativeNamespaceFilter.java
new file mode 100644 (file)
index 0000000..a0203d2
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/environment/filter/NegativeNamespaceFilter.java
@@ -0,0 +1,35 @@
+package org.simantics.scl.compiler.environment.filter;\r
+\r
+import gnu.trove.set.hash.THashSet;\r
+\r
+public class NegativeNamespaceFilter implements NamespaceFilter {\r
+    THashSet<String> excludedValues;\r
+\r
+    public NegativeNamespaceFilter(THashSet<String> excludedValues) {\r
+        this.excludedValues = excludedValues;\r
+    }\r
+\r
+    @Override\r
+    public boolean isValueIncluded(String name) {\r
+        return !excludedValues.contains(name);\r
+    }\r
+    \r
+    @Override\r
+    public String toString() {\r
+        return "Exclude" + excludedValues.toString();\r
+    }\r
+\r
+    @Override\r
+    public boolean isSubsetOf(NamespaceFilter filter) {\r
+        if(filter == AcceptAllNamespaceFilter.INSTANCE)\r
+            return true;\r
+        if(filter instanceof NegativeNamespaceFilter) {\r
+            NegativeNamespaceFilter other = (NegativeNamespaceFilter)filter;\r
+            for(String name : other.excludedValues)\r
+                if(!excludedValues.contains(name))\r
+                    return false;\r
+            return true;\r
+        }\r
+        return false;\r
+    }\r
+}\r