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package org.jruby.runtime.opto;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import org.jruby.RubyInstanceConfig;
import org.jruby.RubyModule;
import org.jruby.compiler.CacheCompiler;
import org.jruby.compiler.InvocationCompiler;
import org.jruby.compiler.impl.BaseBodyCompiler;
import org.jruby.compiler.impl.InheritedCacheCompiler;
import org.jruby.compiler.impl.SkinnyMethodAdapter;
import org.jruby.compiler.impl.StandardASMCompiler;
import org.jruby.compiler.impl.StandardInvocationCompiler;
import org.objectweb.asm.Opcodes;
/**
* A set of factory methods to construct optimizing utilities for compilation,
* cache invalidation, and so on.
*/
public class OptoFactory {
public static InvocationCompiler newInvocationCompiler(BaseBodyCompiler bodyCompiler, SkinnyMethodAdapter method) {
if (invDynInvCompilerConstructor != null) {
try {
return (InvocationCompiler) invDynInvCompilerConstructor.newInstance(bodyCompiler, method);
} catch (InstantiationException ie) {
// do nothing, fall back on default compiler below
} catch (IllegalAccessException ie) {
// do nothing, fall back on default compiler below
} catch (InvocationTargetException ie) {
// do nothing, fall back on default compiler below
}
}
return new StandardInvocationCompiler(bodyCompiler, method);
}
public static CacheCompiler newCacheCompiler(StandardASMCompiler scriptCompiler) {
if (invDynCacheCompilerConstructor != null) {
try {
return (CacheCompiler)invDynCacheCompilerConstructor.newInstance(scriptCompiler);
} catch (InstantiationException ie) {
// do nothing, fall back on default compiler below
} catch (IllegalAccessException ie) {
// do nothing, fall back on default compiler below
} catch (InvocationTargetException ie) {
// do nothing, fall back on default compiler below
}
}
return new InheritedCacheCompiler(scriptCompiler);
}
public static Invalidator newConstantInvalidator() {
if (RubyInstanceConfig.JAVA_VERSION == Opcodes.V1_7 && RubyInstanceConfig.INVOKEDYNAMIC_CONSTANTS) {
try {
return (Invalidator)Class.forName("org.jruby.runtime.opto.SwitchPointInvalidator").newInstance();
} catch (Throwable t) {
// ignore
}
}
return new ObjectIdentityInvalidator();
}
public static Invalidator newMethodInvalidator(RubyModule module) {
if (RubyInstanceConfig.JAVA_VERSION == Opcodes.V1_7 && RubyInstanceConfig.INVOKEDYNAMIC_INVOCATION_SWITCHPOINT) {
try {
return (Invalidator)Class.forName("org.jruby.runtime.opto.GenerationAndSwitchPointInvalidator").getConstructor(RubyModule.class).newInstance(module);
} catch (Throwable t) {
// ignore
}
}
return new GenerationInvalidator(module);
}
// constructors for compiler impls
public static final Constructor invDynInvCompilerConstructor;
public static final Constructor invDynCacheCompilerConstructor;
static {
Constructor invCompilerConstructor = null;
if (RubyInstanceConfig.INVOKEDYNAMIC_INVOCATION) {
try {
Class compiler =
Class.forName("org.jruby.compiler.impl.InvokeDynamicInvocationCompiler");
invCompilerConstructor = compiler.getConstructor(BaseBodyCompiler.class, SkinnyMethodAdapter.class);
} catch (Exception e) {
// leave it null and fall back on our normal invocation logic
}
}
invDynInvCompilerConstructor = invCompilerConstructor;
Constructor cacheCompilerConstructor = null;
if (RubyInstanceConfig.INVOKEDYNAMIC_CACHE) {
try {
Class compiler =
Class.forName("org.jruby.compiler.impl.InvokeDynamicCacheCompiler");
cacheCompilerConstructor = compiler.getConstructor(StandardASMCompiler.class);
} catch (Exception e) {
// leave it null and fall back on our normal invocation logic
}
}
invDynCacheCompilerConstructor = cacheCompilerConstructor;
}
}