hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/spi/Replacements.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/spi/Replacements.java Thu Feb 16 15:46:09 2017 -0800
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package org.graalvm.compiler.nodes.spi;
+
+import org.graalvm.compiler.api.replacements.MethodSubstitution;
+import org.graalvm.compiler.api.replacements.SnippetTemplateCache;
+import org.graalvm.compiler.bytecode.BytecodeProvider;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
+
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+
+/**
+ * Interface for managing replacements.
+ */
+public interface Replacements {
+
+ /**
+ * Gets the snippet graph derived from a given method.
+ *
+ * @param args arguments to the snippet if available, otherwise {@code null}
+ * @return the snippet graph, if any, that is derived from {@code method}
+ */
+ StructuredGraph getSnippet(ResolvedJavaMethod method, Object[] args);
+
+ /**
+ * Gets the snippet graph derived from a given method.
+ *
+ * @param recursiveEntry if the snippet contains a call to this method, it's considered as
+ * recursive call and won't be processed for {@linkplain MethodSubstitution
+ * substitutions}.
+ * @param args arguments to the snippet if available, otherwise {@code null}
+ * @return the snippet graph, if any, that is derived from {@code method}
+ */
+ StructuredGraph getSnippet(ResolvedJavaMethod method, ResolvedJavaMethod recursiveEntry, Object[] args);
+
+ /**
+ * Registers a method as snippet.
+ */
+ void registerSnippet(ResolvedJavaMethod method);
+
+ /**
+ * Gets a graph that is a substitution for a given method.
+ *
+ * @param invokeBci the call site BCI if this request is made for inlining a substitute
+ * otherwise {@code -1}
+ * @return the graph, if any, that is a substitution for {@code method}
+ */
+ StructuredGraph getSubstitution(ResolvedJavaMethod method, int invokeBci);
+
+ /**
+ * Gets a method that is a substitution for a given method.
+ *
+ * @return the method, if any, whose bytecode are a substitution for {@code method}
+ */
+ ResolvedJavaMethod getSubstitutionMethod(ResolvedJavaMethod method);
+
+ /**
+ * Determines if there may be a {@linkplain #getSubstitution(ResolvedJavaMethod, int)
+ * substitution graph} for a given method.
+ *
+ * A call to {@link #getSubstitution} may still return {@code null} for {@code method} and
+ * {@code invokeBci}. A substitution may be based on an {@link InvocationPlugin} that returns
+ * {@code false} for {@link InvocationPlugin#execute} making it impossible to create a
+ * substitute graph.
+ *
+ * @param invokeBci the call site BCI if this request is made for inlining a substitute
+ * otherwise {@code -1}
+ * @return true iff there may be a substitution graph available for {@code method}
+ */
+ boolean hasSubstitution(ResolvedJavaMethod method, int invokeBci);
+
+ /**
+ * Gets the provider for accessing the bytecode of a substitution method.
+ */
+ BytecodeProvider getReplacementBytecodeProvider();
+
+ /**
+ * Register snippet templates.
+ */
+ void registerSnippetTemplateCache(SnippetTemplateCache snippetTemplates);
+
+ /**
+ * Get snippet templates that were registered with
+ * {@link Replacements#registerSnippetTemplateCache(SnippetTemplateCache)}.
+ */
+ <T extends SnippetTemplateCache> T getSnippetTemplateCache(Class<T> templatesClass);
+}