1 files changed, 69 insertions, 0 deletions
diff --git a/src/fjbg/ch/epfl/lamp/fjbg/JConstantValueAttribute.java b/src/fjbg/ch/epfl/lamp/fjbg/JConstantValueAttribute.java
new file mode 100644
index 0000000000..6efd3d7d34
--- /dev/null
+++ b/src/fjbg/ch/epfl/lamp/fjbg/JConstantValueAttribute.java
@@ -0,0 +1,69 @@
+/* FJBG -- Fast Java Bytecode Generator
+ * Copyright 2002-2011 LAMP/EPFL
+ * @author  Michel Schinz
+ */
+
+package ch.epfl.lamp.fjbg;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+/**
+ * ConstantValue attribute representing the value of a constant field.
+ *
+ * There can be no more than one ConstantValue attribute in the attributes
+ * table of a given field_info structure.. See section 4.8.2 of the JVM
+ * specification.
+ *
+ * @author Stephane Micheloud
+ * @version 1.0
+ */
+
+public class JConstantValueAttribute extends JAttribute {
+    /** Constant pool of the current classfile. */
+    private JConstantPool pool;
+
+    protected int constantValueIndex;
+
+    public JConstantValueAttribute(FJBGContext context,
+                                  JClass clazz,
+                                  JField field) {
+        super(context, clazz);
+        this.pool = clazz.pool;
+
+        assert field.getOwner() == clazz;
+    }
+
+    public JConstantValueAttribute(FJBGContext context,
+                                   JClass clazz,
+                                   Object owner, // JField
+                                   String name,
+                                   int size,
+                                   DataInputStream stream)
+        throws IOException {
+        super(context, clazz, name);
+        this.pool = clazz.pool;
+
+        this.constantValueIndex = stream.readShort();
+
+        assert name.equals(getName());
+    }
+
+    public String getName() { return "ConstantValue"; }
+
+    // Follows javap output format for ConstantValue attribute.
+    /*@Override*/ public String toString() {
+        StringBuffer buf = new StringBuffer("  Constant value: ");
+        buf.append(pool.lookupEntry(constantValueIndex));
+        return buf.toString();
+    }
+
+    protected int getSize() {
+        return 2; // Short.SIZE
+    }
+
+    protected void writeContentsTo(DataOutputStream stream) throws IOException {
+        stream.writeShort(constantValueIndex);
+    }
+}