From e37caf06b189d84a92f970510dfc87c7e8c00c33 Mon Sep 17 00:00:00 2001
From: Volker Berlin <volker.berlin@googlemail.com>
Date: Fri, 19 Jul 2019 22:29:34 +0200
Subject: [PATCH] add logging

---
 .../jwebassembly/JWebAssembly.java            | 26 +++++++++++++++++++
 .../jwebassembly/module/ModuleGenerator.java  |  4 +++
 .../jwebassembly/module/TypeManager.java      |  2 ++
 3 files changed, 32 insertions(+)

diff --git a/src/de/inetsoftware/jwebassembly/JWebAssembly.java b/src/de/inetsoftware/jwebassembly/JWebAssembly.java
index 48adba3..ec03e06 100644
--- a/src/de/inetsoftware/jwebassembly/JWebAssembly.java
+++ b/src/de/inetsoftware/jwebassembly/JWebAssembly.java
@@ -25,6 +25,12 @@ import java.net.URL;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Formatter;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+import java.util.logging.StreamHandler;
 
 import javax.annotation.Nonnull;
 
@@ -73,6 +79,26 @@ public class JWebAssembly {
      */
     public static final String REPLACE_ANNOTATION =  "de.inetsoftware.jwebassembly.api.annotation.Replace";
 
+    /**
+     * The logger instance
+     */
+    public static final Logger LOGGER = Logger.getAnonymousLogger( null );
+    static {
+        LOGGER.setUseParentHandlers( false );
+        ConsoleHandler handler = new ConsoleHandler() {{
+            setOutputStream(System.out);
+        }};
+        handler.setFormatter( new Formatter() {
+            @Override
+            public String format( LogRecord record ) {
+                return record.getMessage() + '\n';
+            }
+        });
+        handler.setLevel( Level.ALL );
+        LOGGER.addHandler( handler );
+        //LOGGER.setLevel( Level.FINE );
+    }
+
     /**
      * Create a instance.
      */
diff --git a/src/de/inetsoftware/jwebassembly/module/ModuleGenerator.java b/src/de/inetsoftware/jwebassembly/module/ModuleGenerator.java
index 86d3661..007347f 100644
--- a/src/de/inetsoftware/jwebassembly/module/ModuleGenerator.java
+++ b/src/de/inetsoftware/jwebassembly/module/ModuleGenerator.java
@@ -162,14 +162,17 @@ public class ModuleGenerator {
             ClassFile classFile = ClassFile.get( next.className, libraries );
             if( classFile == null ) {
                 if( next instanceof SyntheticFunctionName ) {
+                    JWebAssembly.LOGGER.info( '\t' + next.methodName + next.signature );
                     scanMethod( ((SyntheticFunctionName)next).getCodeBuilder( watParser ) );
                     functions.markAsScanned( next );
                 }
             } else {
+                JWebAssembly.LOGGER.fine( "scan class: " + next.className );
                 iterateMethods( classFile, method -> {
                     try {
                         FunctionName name = new FunctionName( method );
                         if( functions.needToScan( name ) ) {
+                            JWebAssembly.LOGGER.fine( '\t' + name.methodName + name.signature );
                             scanMethod( createInstructions( functions.replace( name, method ) ) );
                             functions.markAsScanned( name );
                         }
@@ -226,6 +229,7 @@ public class ModuleGenerator {
             writeMethodSignature( name, functions.isStatic( name ), null );
         }
 
+        JWebAssembly.LOGGER.fine( "scan finsih" );
         types.prepareFinish( writer, functions, libraries );
         prepareFunctions(); // prepare of types can add some override methods as needed
         functions.prepareFinish();
diff --git a/src/de/inetsoftware/jwebassembly/module/TypeManager.java b/src/de/inetsoftware/jwebassembly/module/TypeManager.java
index f04dcd2..03e07c2 100644
--- a/src/de/inetsoftware/jwebassembly/module/TypeManager.java
+++ b/src/de/inetsoftware/jwebassembly/module/TypeManager.java
@@ -30,6 +30,7 @@ import de.inetsoftware.classparser.ClassFile;
 import de.inetsoftware.classparser.ConstantClass;
 import de.inetsoftware.classparser.FieldInfo;
 import de.inetsoftware.classparser.MethodInfo;
+import de.inetsoftware.jwebassembly.JWebAssembly;
 import de.inetsoftware.jwebassembly.WasmException;
 import de.inetsoftware.jwebassembly.wasm.AnyType;
 import de.inetsoftware.jwebassembly.wasm.NamedStorageType;
@@ -101,6 +102,7 @@ public class TypeManager {
     public StructType valueOf( String name ) {
         StructType type = map.get( name );
         if( type == null ) {
+            JWebAssembly.LOGGER.fine( "\t\ttype: " + name );
             type = new StructType( name );
             map.put( name, type );
         }