Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / constants / ShortConstant.java

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/constants/ShortConstant.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/constants/ShortConstant.java
new file mode 100644 (file)
index 0000000..b4401f9
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/constants/ShortConstant.java
@@ -0,0 +1,73 @@
+package org.simantics.scl.compiler.constants;
+
+import org.cojen.classfile.TypeDesc;
+import org.objectweb.asm.Label;
+import org.simantics.scl.compiler.internal.codegen.continuations.Cont;
+import org.simantics.scl.compiler.internal.codegen.references.IVal;
+import org.simantics.scl.compiler.internal.codegen.utils.MethodBuilder;
+import org.simantics.scl.compiler.internal.codegen.utils.TransientClassBuilder;
+import org.simantics.scl.compiler.types.Types;
+
+public class ShortConstant extends Constant {
+    public static final ShortConstant ZERO = new ShortConstant((short)0);
+    public static final ShortConstant ONE = new ShortConstant((short)1);
+    public static final ShortConstant MINUS_ONE = new ShortConstant((short)-1);
+    
+    short value;
+
+    public ShortConstant(short value) {
+        super(Types.SHORT);
+        this.value = value;
+    }
+    
+    @Override
+    public void push(MethodBuilder mb) {
+        mb.loadConstant(value);
+    }
+    
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+    
+    public short getValue() {
+        return value;
+    }
+
+    @Override
+    public int hashCode() {
+        return value;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        ShortConstant other = (ShortConstant) obj;
+        if (value != other.value)
+            return false;
+        return true;
+    }
+    
+    @Override
+    public void deconstruct(MethodBuilder mb, IVal parameter, Cont success,
+            Label failure) {
+        mb.push(parameter, Types.SHORT);
+        mb.loadConstant(value);
+        mb.ifComparisonBranch(failure, "!=", TypeDesc.SHORT);
+        mb.jump(success);
+    }
+    
+    public int constructorTag() {
+        return 0;
+    }
+
+    @Override
+    public Object realizeValue(TransientClassBuilder classBuilder) {
+        return value;
+    }
+}