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154 changes: 154 additions & 0 deletions
154
...g.codehaus.groovy25/src/org/codehaus/groovy/classgen/asm/sc/StaticTypesClosureWriter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| package org.codehaus.groovy.classgen.asm.sc; | ||
|
|
||
| import org.codehaus.groovy.GroovyBugError; | ||
| import org.codehaus.groovy.ast.ClassCodeVisitorSupport; | ||
| import org.codehaus.groovy.ast.ClassHelper; | ||
| import org.codehaus.groovy.ast.ClassNode; | ||
| import org.codehaus.groovy.ast.MethodNode; | ||
| import org.codehaus.groovy.ast.Parameter; | ||
| import org.codehaus.groovy.ast.expr.ArgumentListExpression; | ||
| import org.codehaus.groovy.ast.expr.ArrayExpression; | ||
| import org.codehaus.groovy.ast.expr.ClosureExpression; | ||
| import org.codehaus.groovy.ast.expr.ConstantExpression; | ||
| import org.codehaus.groovy.ast.expr.Expression; | ||
| import org.codehaus.groovy.ast.expr.MethodCallExpression; | ||
| import org.codehaus.groovy.ast.expr.VariableExpression; | ||
| import org.codehaus.groovy.ast.stmt.ReturnStatement; | ||
| import org.codehaus.groovy.classgen.asm.ClosureWriter; | ||
| import org.codehaus.groovy.classgen.asm.WriterController; | ||
| import org.codehaus.groovy.control.SourceUnit; | ||
| import org.codehaus.groovy.transform.sc.StaticCompilationMetadataKeys; | ||
| import org.codehaus.groovy.transform.stc.StaticTypesMarker; | ||
| import groovyjarjarasm.asm.Opcodes; | ||
|
|
||
| import java.util.Collections; | ||
| import java.util.List; | ||
|
|
||
| /** | ||
| * Writer responsible for generating closure classes in statically compiled mode. | ||
| */ | ||
| public class StaticTypesClosureWriter extends ClosureWriter { | ||
| public StaticTypesClosureWriter(WriterController wc) { | ||
| super(wc); | ||
| } | ||
|
|
||
| @Override | ||
| protected ClassNode createClosureClass(final ClosureExpression expression, final int mods) { | ||
| ClassNode closureClass = super.createClosureClass(expression, mods); | ||
| List<MethodNode> methods = closureClass.getDeclaredMethods("call"); | ||
| List<MethodNode> doCall = closureClass.getMethods("doCall"); | ||
| if (doCall.size() != 1) { | ||
| throw new GroovyBugError("Expected to find one (1) doCall method on generated closure, but found " + doCall.size()); | ||
| } | ||
| MethodNode doCallMethod = doCall.get(0); | ||
| if (methods.isEmpty() && doCallMethod.getParameters().length == 1) { | ||
| createDirectCallMethod(closureClass, doCallMethod); | ||
| } | ||
| MethodTargetCompletionVisitor visitor = new MethodTargetCompletionVisitor(doCallMethod); | ||
| Object dynamic = expression.getNodeMetaData(StaticTypesMarker.DYNAMIC_RESOLUTION); | ||
| if (dynamic != null) { | ||
| doCallMethod.putNodeMetaData(StaticTypesMarker.DYNAMIC_RESOLUTION, dynamic); | ||
| } | ||
| for (MethodNode method : methods) { | ||
| visitor.visitMethod(method); | ||
| } | ||
| closureClass.putNodeMetaData(StaticCompilationMetadataKeys.STATIC_COMPILE_NODE, Boolean.TRUE); | ||
| return closureClass; | ||
| } | ||
|
|
||
| private static void createDirectCallMethod(final ClassNode closureClass, final MethodNode doCallMethod) { | ||
| // in case there is no "call" method on the closure, we can create a "fast invocation" paths | ||
| // to avoid going through ClosureMetaClass by call(Object...) method | ||
|
|
||
| // we can't have a specialized version of call(Object...) because the dispatch logic in ClosureMetaClass | ||
| // is too complex! | ||
|
|
||
| // call(Object) | ||
| /* GRECLIPSE edit -- GROOVY-10071 | ||
| Parameter args = new Parameter(ClassHelper.OBJECT_TYPE, "args"); | ||
| */ | ||
| Parameter doCallParam = doCallMethod.getParameters()[0]; | ||
| Parameter args = new Parameter(doCallParam.getType(), "args"); | ||
| // GRECLIPSE end | ||
| MethodCallExpression doCall1arg = new MethodCallExpression( | ||
| new VariableExpression("this", closureClass), | ||
| "doCall", | ||
| new ArgumentListExpression(new VariableExpression(args)) | ||
| ); | ||
| doCall1arg.setImplicitThis(true); | ||
| doCall1arg.setMethodTarget(doCallMethod); | ||
| closureClass.addMethod( | ||
| new MethodNode("call", | ||
| Opcodes.ACC_PUBLIC, | ||
| ClassHelper.OBJECT_TYPE, | ||
| new Parameter[]{args}, | ||
| ClassNode.EMPTY_ARRAY, | ||
| new ReturnStatement(doCall1arg))); | ||
|
|
||
| // call() | ||
| /* GRECLIPSE edit -- GROOVY-10071, GROOVY-10072 | ||
| MethodCallExpression doCallNoArgs = new MethodCallExpression(new VariableExpression("this", closureClass), "doCall", new ArgumentListExpression(new ConstantExpression(null))); | ||
| */ | ||
| Expression argument; | ||
| if (doCallParam.hasInitialExpression()) { | ||
| argument = doCallParam.getInitialExpression(); | ||
| } else if (doCallParam.getType().isArray()) { | ||
| ClassNode elementType = doCallParam.getType().getComponentType(); | ||
| argument = new ArrayExpression(elementType, null, Collections.singletonList(new ConstantExpression(0, true))); | ||
| } else { | ||
| argument = new ConstantExpression(null); | ||
| } | ||
| MethodCallExpression doCallNoArgs = new MethodCallExpression(new VariableExpression("this", closureClass), "doCall", new ArgumentListExpression(argument)); | ||
| // GRECLIPSE end | ||
| doCallNoArgs.setImplicitThis(true); | ||
| doCallNoArgs.setMethodTarget(doCallMethod); | ||
| closureClass.addMethod( | ||
| new MethodNode("call", | ||
| Opcodes.ACC_PUBLIC, | ||
| ClassHelper.OBJECT_TYPE, | ||
| Parameter.EMPTY_ARRAY, | ||
| ClassNode.EMPTY_ARRAY, | ||
| new ReturnStatement(doCallNoArgs))); | ||
| } | ||
|
|
||
| private static final class MethodTargetCompletionVisitor extends ClassCodeVisitorSupport { | ||
|
|
||
| private final MethodNode doCallMethod; | ||
|
|
||
| private MethodTargetCompletionVisitor(final MethodNode doCallMethod) { | ||
| this.doCallMethod = doCallMethod; | ||
| } | ||
|
|
||
| @Override | ||
| protected SourceUnit getSourceUnit() { | ||
| return null; | ||
| } | ||
|
|
||
| @Override | ||
| public void visitMethodCallExpression(final MethodCallExpression call) { | ||
| super.visitMethodCallExpression(call); | ||
| MethodNode mn = call.getMethodTarget(); | ||
| if (mn == null) { | ||
| call.setMethodTarget(doCallMethod); | ||
| } | ||
| } | ||
| } | ||
| } |
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