From a061def4dd3d16b226f17a5246470255623177c2 Mon Sep 17 00:00:00 2001
From: Iulian Dragos <jaguarul@gmail.com>
Date: Fri, 12 Nov 2010 16:26:17 +0000
Subject: Generate EnclosingMethod classfile attributes.

This should fix java signatures when they refer to
method type parameters. I unrolled Adriaans previous fix
for #3249, as this one is more general. Closes #3249,
review by moors.
---
 src/fjbg/ch/epfl/lamp/fjbg/FJBGContext.java        |  8 +++++
 .../epfl/lamp/fjbg/JEnclosingMethodAttribute.java  | 39 ++++++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 src/fjbg/ch/epfl/lamp/fjbg/JEnclosingMethodAttribute.java

(limited to 'src/fjbg/ch')

diff --git a/src/fjbg/ch/epfl/lamp/fjbg/FJBGContext.java b/src/fjbg/ch/epfl/lamp/fjbg/FJBGContext.java
index 569a9ac272..07030fbb9c 100644
--- a/src/fjbg/ch/epfl/lamp/fjbg/FJBGContext.java
+++ b/src/fjbg/ch/epfl/lamp/fjbg/FJBGContext.java
@@ -145,6 +145,14 @@ public class FJBGContext {
         return new JOtherAttribute(this, clazz, owner, name, contents, length);
     }
 
+    public JEnclosingMethodAttribute JEnclosingMethodAttribute(JClass clazz,
+                                                               String className,
+                                                               String methodName,
+                                                               JType methodType) {
+        return new JEnclosingMethodAttribute(this, clazz, className, methodName, methodType);
+    }
+
+
     public JOtherAttribute JOtherAttribute(JClass clazz,
                                            Object owner,
                                            String name,
diff --git a/src/fjbg/ch/epfl/lamp/fjbg/JEnclosingMethodAttribute.java b/src/fjbg/ch/epfl/lamp/fjbg/JEnclosingMethodAttribute.java
new file mode 100644
index 0000000000..4351e2fc7b
--- /dev/null
+++ b/src/fjbg/ch/epfl/lamp/fjbg/JEnclosingMethodAttribute.java
@@ -0,0 +1,39 @@
+
+package ch.epfl.lamp.fjbg;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+/**
+ * Sourcefile attribute, which can be attached to class files to
+ * associate them with their enclosing method. A class may have
+ * at most one EclosingMethod attribute.
+ *
+ * @version 1.0
+ * @author Michel Schinz
+ */
+
+public class JEnclosingMethodAttribute extends JAttribute {
+    protected final int classIdx;
+    protected final int nameAndTypeIdx;
+
+    public JEnclosingMethodAttribute(FJBGContext context,
+                                     JClass clazz,
+                                     String className, String methodName, JType methodType) {
+        super(context, clazz);
+        this.classIdx = clazz.getConstantPool().addClass(className);
+        this.nameAndTypeIdx = clazz.getConstantPool().addNameAndType(methodName, methodType.getSignature());
+    }
+
+    public String getName() { return "EnclosingMethod"; }
+
+    protected int getSize() {
+        return 4;
+    }
+
+    protected void writeContentsTo(DataOutputStream stream) throws IOException {
+        stream.writeShort(classIdx);
+        stream.writeShort(nameAndTypeIdx);
+    }
+}
-- 
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