X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Finternal%2Ftypes%2FTypeHashCodeContext.java;fp=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Finternal%2Ftypes%2FTypeHashCodeContext.java;h=5e7aec1a0b4b9ded0efff5298963158578a37b2f;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/types/TypeHashCodeContext.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/types/TypeHashCodeContext.java
new file mode 100644
index 000000000..5e7aec1a0
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/types/TypeHashCodeContext.java
@@ -0,0 +1,34 @@
+package org.simantics.scl.compiler.internal.types;
+
+import gnu.trove.map.hash.TObjectIntHashMap;
+
+import org.simantics.scl.compiler.types.TVar;
+
+public class TypeHashCodeContext {
+        
+    public static final int APPLY = 0x12345678;
+    public static final int FORALL = 0xf2341233;
+    public static final int UNION = 0x9f8f7f6f;
+    public static final int FUN = 0xff294313;
+    
+    int result;
+    TObjectIntHashMap<TVar> varHashCode;
+    
+    public void append(int hash) {
+        result = result*31 + hash;
+    }
+    
+    public int getResult() {
+        return result;
+    }
+    
+    public TObjectIntHashMap<TVar> getVarHashCode() {
+        return varHashCode;
+    }
+    
+    public TObjectIntHashMap<TVar> createVarHashCode() {
+        if(varHashCode == null)
+            varHashCode = new TObjectIntHashMap<TVar>();
+        return varHashCode;
+    }
+}