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package org.jruby.compiler; import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodType; import org.jruby.MetaClass; import org.jruby.Ruby; import org.jruby.RubyBasicObject; import org.jruby.RubyInstanceConfig; import org.jruby.RubyModule; import org.jruby.ast.util.SexpMaker; import org.jruby.internal.runtime.methods.CompiledIRMethod; import org.jruby.internal.runtime.methods.MixedModeIRMethod; import org.jruby.ir.targets.JVMVisitor; import org.jruby.ir.targets.JVMVisitorMethodContext; import org.jruby.util.collections.IntHashMap; class MethodJITTask extends JITCompiler.Task { private final String className; private final MixedModeIRMethod method; private final String methodName; public MethodJITTask(JITCompiler jitCompiler, MixedModeIRMethod method, String className) { super(jitCompiler); this.method = method; this.className = className; this.methodName = method.getName(); } @Override public void exec() throws NoSuchMethodException, IllegalAccessException { // Check if the method has been explicitly excluded String excludeModuleName = checkExcludedMethod(jitCompiler.config, className, methodName, method); if (excludeModuleName != null) { method.setCallCount(-1); if (jitCompiler.config.isJitLogging()) { logImpl("skipping method in " + excludeModuleName); } return; } String key = SexpMaker.sha1(method.getIRScope()); Ruby runtime = jitCompiler.runtime; JVMVisitor visitor = new JVMVisitor(runtime); MethodJITClassGenerator generator = new MethodJITClassGenerator(className, methodName, key, runtime, method, visitor); JVMVisitorMethodContext context = new JVMVisitorMethodContext(); generator.compile(context); Class<?> sourceClass = defineClass(generator, visitor, method.getIRScope(), method.ensureInstrsReady()); if (sourceClass == null) return; // class could not be found nor generated; give up on JIT and bail out String variableName = context.getVariableName(); MethodHandle variable = JITCompiler.PUBLIC_LOOKUP.findStatic(sourceClass, variableName, context.getNativeSignature(-1)); IntHashMap<MethodType> signatures = context.getNativeSignaturesExceptVariable(); if (signatures.size() == 0) { // only variable-arity method.completeBuild( new CompiledIRMethod( variable, method.getIRScope(), method.getVisibility(), method.getImplementationClass())); } else { // also specific-arity for (IntHashMap.Entry<MethodType> entry : signatures.entrySet()) { method.completeBuild( new CompiledIRMethod( variable, JITCompiler.PUBLIC_LOOKUP.findStatic(sourceClass, context.getSpecificName(), entry.getValue()), entry.getKey(), method.getIRScope(), method.getVisibility(), method.getImplementationClass())); break; // FIXME: only supports one arity } } } @Override protected String getSourceFile() { return method.getFile(); } @Override protected void logJitted() { logImpl("method done jitting"); } @Override protected void logFailed(final Throwable ex) { logImpl("could not compile method; passes run: " + method.getIRScope().getExecutedPasses(), ex); } @Override protected void logImpl(String message, Object... reason) { JITCompiler.log(method, methodName, message, reason); } static String checkExcludedMethod(final RubyInstanceConfig config, final String className, final String methodName, final Compilable target) { if (config.getExcludedMethods().size() > 0) { final RubyModule implementationClass = target.getImplementationClass(); String excludeModuleName = className; if (implementationClass.getMethodLocation().isSingleton()) { RubyBasicObject possibleRealClass = ((MetaClass) implementationClass).getAttached(); if (possibleRealClass instanceof RubyModule) { excludeModuleName = "Meta:" + ((RubyModule) possibleRealClass).getName(); } } if (config.getExcludedMethods().contains(excludeModuleName) || config.getExcludedMethods().contains(methodName) || config.getExcludedMethods().contains(excludeModuleName + '#' + methodName) || config.getExcludedMethods().contains(target.getFile()) || config.getExcludedMethods().contains(target.getFile() + ':' + target.getLine())) { return excludeModuleName; // true - excluded } } return null; } }