# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1397569055 -7200
# Node ID de406a971984c20f098bffd3360cc8a5cb94dda1
# Parent  6876a4599b7e6fcff41a222d7c39fb47d19ac19f
enhanced API for scoped overriding of the current DebugConfig

diff -r 6876a4599b7e -r de406a971984 graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/BasicHSAILTest.java
--- a/graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/BasicHSAILTest.java	Tue Apr 15 13:34:29 2014 +0200
+++ b/graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/BasicHSAILTest.java	Tue Apr 15 15:37:35 2014 +0200
@@ -22,6 +22,8 @@
  */
 package com.oracle.graal.compiler.hsail.test;
 
+import static com.oracle.graal.debug.DelegatingDebugConfig.Feature.*;
+
 import java.lang.reflect.*;
 
 import org.junit.*;
@@ -30,7 +32,6 @@
 import com.oracle.graal.compiler.test.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.debug.Debug.Scope;
-import com.oracle.graal.debug.internal.*;
 import com.oracle.graal.gpu.*;
 import com.oracle.graal.hotspot.hsail.*;
 import com.oracle.graal.hsail.*;
@@ -344,15 +345,7 @@
     }
 
     private void test(final String snippet) {
-        DebugConfig debugConfig = DebugScope.getConfig();
-        DebugConfig noInterceptConfig = new DelegatingDebugConfig(debugConfig) {
-            @Override
-            public RuntimeException interceptException(Throwable e) {
-                return null;
-            }
-        };
-
-        try (DebugConfigScope dcs = Debug.setConfig(noInterceptConfig)) {
+        try (DebugConfigScope dcs = Debug.setConfig(new DelegatingDebugConfig().disable(INTERCEPT))) {
             try (Scope s = Debug.scope("HSAILCodeGen")) {
                 Method method = getMethod(snippet);
                 ExternalCompilationResult hsailCode = getBackend().compileKernel(getMetaAccess().lookupJavaMethod(method), false);
diff -r 6876a4599b7e -r de406a971984 graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/StaticMethod16InArraysTest.java
--- a/graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/StaticMethod16InArraysTest.java	Tue Apr 15 13:34:29 2014 +0200
+++ b/graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/StaticMethod16InArraysTest.java	Tue Apr 15 15:37:35 2014 +0200
@@ -23,10 +23,11 @@
 
 package com.oracle.graal.compiler.hsail.test;
 
+import static com.oracle.graal.debug.DelegatingDebugConfig.Feature.*;
+
 import org.junit.*;
 
 import com.oracle.graal.debug.*;
-import com.oracle.graal.debug.internal.*;
 
 /**
  * Tests the addition of elements from sixteen input arrays.
@@ -64,15 +65,7 @@
     @Test(expected = java.lang.ClassCastException.class)
     @Ignore("until GPU backends can co-exist")
     public void test() {
-        DebugConfig debugConfig = DebugScope.getConfig();
-        DebugConfig noInterceptConfig = new DelegatingDebugConfig(debugConfig) {
-            @Override
-            public RuntimeException interceptException(Throwable e) {
-                return null;
-            }
-        };
-
-        try (DebugConfigScope s = Debug.setConfig(noInterceptConfig)) {
+        try (DebugConfigScope s = Debug.setConfig(new DelegatingDebugConfig().disable(INTERCEPT))) {
             testGeneratedHsail();
         }
     }
diff -r 6876a4599b7e -r de406a971984 graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/CheckGraalInvariants.java
--- a/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/CheckGraalInvariants.java	Tue Apr 15 13:34:29 2014 +0200
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/CheckGraalInvariants.java	Tue Apr 15 15:37:35 2014 +0200
@@ -22,6 +22,8 @@
  */
 package com.oracle.graal.compiler.test;
 
+import static com.oracle.graal.debug.DelegatingDebugConfig.Feature.*;
+
 import java.io.*;
 import java.lang.reflect.*;
 import java.util.*;
@@ -33,7 +35,6 @@
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.api.runtime.*;
 import com.oracle.graal.debug.*;
-import com.oracle.graal.debug.internal.*;
 import com.oracle.graal.java.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.phases.*;
@@ -106,14 +107,7 @@
                         String methodName = className + "." + m.getName();
                         if (matches(filters, methodName)) {
                             StructuredGraph graph = new StructuredGraph(metaAccess.lookupJavaMethod(m));
-                            DebugConfig debugConfig = DebugScope.getConfig();
-                            DebugConfig noInterceptConfig = new DelegatingDebugConfig(debugConfig) {
-                                @Override
-                                public RuntimeException interceptException(Throwable e) {
-                                    return null;
-                                }
-                            };
-                            try (DebugConfigScope s = Debug.setConfig(noInterceptConfig)) {
+                            try (DebugConfigScope s = Debug.setConfig(new DelegatingDebugConfig().disable(INTERCEPT))) {
                                 graphBuilderSuite.apply(graph, context);
                                 checkGraph(context, graph);
                             } catch (VerificationError e) {
diff -r 6876a4599b7e -r de406a971984 graal/com.oracle.graal.debug/src/com/oracle/graal/debug/Debug.java
--- a/graal/com.oracle.graal.debug/src/com/oracle/graal/debug/Debug.java	Tue Apr 15 13:34:29 2014 +0200
+++ b/graal/com.oracle.graal.debug/src/com/oracle/graal/debug/Debug.java	Tue Apr 15 15:37:35 2014 +0200
@@ -23,6 +23,7 @@
 package com.oracle.graal.debug;
 
 import static com.oracle.graal.debug.Debug.Initialization.*;
+import static com.oracle.graal.debug.DelegatingDebugConfig.Feature.*;
 import static java.util.FormattableFlags.*;
 
 import java.io.*;
@@ -259,17 +260,7 @@
     }
 
     public static Scope forceLog() {
-        return Debug.sandbox("forceLog", new DelegatingDebugConfig(DebugScope.getConfig()) {
-            @Override
-            public boolean isLogEnabled() {
-                return true;
-            }
-
-            @Override
-            public boolean isLogEnabledForMethod() {
-                return true;
-            }
-        });
+        return Debug.sandbox("forceLog", new DelegatingDebugConfig().enable(LOG).enable(LOG_METHOD));
     }
 
     /**
diff -r 6876a4599b7e -r de406a971984 graal/com.oracle.graal.debug/src/com/oracle/graal/debug/DelegatingDebugConfig.java
--- a/graal/com.oracle.graal.debug/src/com/oracle/graal/debug/DelegatingDebugConfig.java	Tue Apr 15 13:34:29 2014 +0200
+++ b/graal/com.oracle.graal.debug/src/com/oracle/graal/debug/DelegatingDebugConfig.java	Tue Apr 15 15:37:35 2014 +0200
@@ -25,45 +25,139 @@
 import java.io.*;
 import java.util.*;
 
+import com.oracle.graal.debug.internal.*;
+
 public class DelegatingDebugConfig implements DebugConfig {
 
     protected final DebugConfig delegate;
 
+    /**
+     * The features of a {@link DelegatingDebugConfig} that can be force
+     * {@linkplain DelegatingDebugConfig#enable(Feature) enabled}/
+     * {@linkplain DelegatingDebugConfig#disable(Feature) disabled} or
+     * {@linkplain DelegatingDebugConfig#delegate(Feature) delegated}.
+     */
+    public enum Feature {
+        /**
+         * @see Debug#isLogEnabled()
+         */
+        LOG,
+        /**
+         * @see Debug#isLogEnabledForMethod()
+         */
+        LOG_METHOD,
+        /**
+         * @see Debug#isDumpEnabled()
+         */
+        DUMP,
+        /**
+         * @see Debug#isDumpEnabledForMethod()
+         */
+        DUMP_METHOD,
+        /**
+         * @see Debug#isMeterEnabled()
+         */
+        METER,
+        /**
+         * @see Debug#isTimeEnabled()
+         */
+        TIME,
+        /**
+         * @see DebugConfig#interceptException(Throwable)
+         */
+        INTERCEPT
+    }
+
+    private final Map<Feature, Boolean> featureState = new EnumMap<>(Feature.class);
+
+    /**
+     * Creates a config that delegates to the {@link DebugScope#getConfig() current config}.
+     */
+    public DelegatingDebugConfig() {
+        this(DebugScope.getConfig());
+    }
+
+    /**
+     * Creates a config that delegates to a given config.
+     */
     public DelegatingDebugConfig(DebugConfig delegate) {
         this.delegate = delegate;
     }
 
+    public DelegatingDebugConfig enable(Feature feature) {
+        featureState.put(feature, Boolean.TRUE);
+        return this;
+    }
+
+    public DelegatingDebugConfig disable(Feature feature) {
+        featureState.put(feature, Boolean.FALSE);
+        return this;
+    }
+
+    public DelegatingDebugConfig delegate(Feature feature) {
+        featureState.put(feature, null);
+        return this;
+    }
+
     @Override
     public boolean isLogEnabled() {
-        return delegate.isLogEnabled();
+        Boolean fs = featureState.get(Feature.LOG);
+        if (fs == null) {
+            return delegate.isLogEnabled();
+        }
+        return fs.booleanValue();
     }
 
     public boolean isLogEnabledForMethod() {
-        return delegate.isLogEnabledForMethod();
+        Boolean fs = featureState.get(Feature.LOG_METHOD);
+        if (fs == null) {
+            return delegate.isLogEnabledForMethod();
+        }
+        return fs.booleanValue();
     }
 
     @Override
     public boolean isMeterEnabled() {
-        return delegate.isMeterEnabled();
+        Boolean fs = featureState.get(Feature.METER);
+        if (fs == null) {
+            return delegate.isMeterEnabled();
+        }
+        return fs.booleanValue();
     }
 
     @Override
     public boolean isDumpEnabled() {
-        return delegate.isDumpEnabled();
+        Boolean fs = featureState.get(Feature.DUMP);
+        if (fs == null) {
+            return delegate.isDumpEnabled();
+        }
+        return fs.booleanValue();
     }
 
     public boolean isDumpEnabledForMethod() {
-        return delegate.isDumpEnabledForMethod();
+        Boolean fs = featureState.get(Feature.DUMP_METHOD);
+        if (fs == null) {
+            return delegate.isDumpEnabledForMethod();
+        }
+        return fs.booleanValue();
     }
 
     @Override
     public boolean isTimeEnabled() {
-        return delegate.isTimeEnabled();
+        Boolean fs = featureState.get(Feature.TIME);
+        if (fs == null) {
+            return delegate.isTimeEnabled();
+        }
+        return fs.booleanValue();
     }
 
     @Override
     public RuntimeException interceptException(Throwable e) {
-        return delegate.interceptException(e);
+        Boolean fs = featureState.get(Feature.INTERCEPT);
+        if (fs == null || fs) {
+            return delegate.interceptException(e);
+        }
+        return null;
     }
 
     @Override