| /* |
| * 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.transform.sc.transformers; |
| |
| import org.codehaus.groovy.ast.ClassCodeExpressionTransformer; |
| import org.codehaus.groovy.ast.ClassHelper; |
| import org.codehaus.groovy.ast.ClassNode; |
| import org.codehaus.groovy.ast.InnerClassNode; |
| import org.codehaus.groovy.ast.MethodNode; |
| import org.codehaus.groovy.ast.expr.BinaryExpression; |
| import org.codehaus.groovy.ast.expr.BooleanExpression; |
| import org.codehaus.groovy.ast.expr.CastExpression; |
| import org.codehaus.groovy.ast.expr.ClosureExpression; |
| import org.codehaus.groovy.ast.expr.ConstructorCallExpression; |
| import org.codehaus.groovy.ast.expr.Expression; |
| import org.codehaus.groovy.ast.expr.ListExpression; |
| import org.codehaus.groovy.ast.expr.MethodCallExpression; |
| import org.codehaus.groovy.ast.expr.RangeExpression; |
| import org.codehaus.groovy.ast.expr.StaticMethodCallExpression; |
| import org.codehaus.groovy.ast.expr.VariableExpression; |
| import org.codehaus.groovy.ast.stmt.Statement; |
| import org.codehaus.groovy.classgen.asm.sc.StaticTypesTypeChooser; |
| import org.codehaus.groovy.control.SourceUnit; |
| import org.codehaus.groovy.runtime.ScriptBytecodeAdapter; |
| import org.codehaus.groovy.syntax.Types; |
| import org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| /** |
| * Some expressions use symbols as aliases to method calls (<<, +=, ...). In static compilation, |
| * if such a method call is found, we transform the original binary expression into a method |
| * call expression so that the call gets statically compiled. |
| * |
| * @author Cedric Champeau |
| */ |
| public class StaticCompilationTransformer extends ClassCodeExpressionTransformer { |
| |
| protected static final ClassNode BYTECODE_ADAPTER_CLASS = ClassHelper.make(ScriptBytecodeAdapter.class); |
| protected static final Map<Integer, MethodNode> BYTECODE_BINARY_ADAPTERS = Collections.unmodifiableMap(new HashMap<Integer, MethodNode>() {{ |
| put(Types.COMPARE_EQUAL, BYTECODE_ADAPTER_CLASS.getMethods("compareEqual").get(0)); |
| put(Types.COMPARE_GREATER_THAN, BYTECODE_ADAPTER_CLASS.getMethods("compareGreaterThan").get(0)); |
| put(Types.COMPARE_GREATER_THAN_EQUAL, BYTECODE_ADAPTER_CLASS.getMethods("compareGreaterThanEqual").get(0)); |
| put(Types.COMPARE_LESS_THAN, BYTECODE_ADAPTER_CLASS.getMethods("compareLessThan").get(0)); |
| put(Types.COMPARE_LESS_THAN_EQUAL, BYTECODE_ADAPTER_CLASS.getMethods("compareLessThanEqual").get(0)); |
| put(Types.COMPARE_NOT_EQUAL, BYTECODE_ADAPTER_CLASS.getMethods("compareNotEqual").get(0)); |
| put(Types.COMPARE_TO, BYTECODE_ADAPTER_CLASS.getMethods("compareTo").get(0)); |
| |
| }}); |
| |
| |
| private ClassNode classNode; |
| private final SourceUnit unit; |
| |
| private final StaticTypesTypeChooser typeChooser = new StaticTypesTypeChooser(); |
| private final StaticTypeCheckingVisitor staticCompilationVisitor; |
| |
| // various helpers in order to avoid a potential very big class |
| private final StaticMethodCallExpressionTransformer staticMethodCallExpressionTransformer = new StaticMethodCallExpressionTransformer(this); |
| private final ConstructorCallTransformer constructorCallTransformer = new ConstructorCallTransformer(this); |
| private final MethodCallExpressionTransformer methodCallExpressionTransformer = new MethodCallExpressionTransformer(this); |
| private final BinaryExpressionTransformer binaryExpressionTransformer = new BinaryExpressionTransformer(this); |
| private final ClosureExpressionTransformer closureExpressionTransformer = new ClosureExpressionTransformer(this); |
| private final BooleanExpressionTransformer booleanExpressionTransformer = new BooleanExpressionTransformer(this); |
| private final VariableExpressionTransformer variableExpressionTransformer = new VariableExpressionTransformer(); |
| private final RangeExpressionTransformer rangeExpressionTransformer = new RangeExpressionTransformer(this); |
| private final ListExpressionTransformer listExpressionTransformer = new ListExpressionTransformer(this); |
| private final CastExpressionOptimizer castExpressionTransformer = new CastExpressionOptimizer(this); |
| |
| public StaticCompilationTransformer(final SourceUnit unit, final StaticTypeCheckingVisitor visitor) { |
| this.unit = unit; |
| this.staticCompilationVisitor = visitor; |
| } |
| |
| @Override |
| protected SourceUnit getSourceUnit() { |
| return unit; |
| } |
| |
| public StaticTypesTypeChooser getTypeChooser() { |
| return typeChooser; |
| } |
| |
| public ClassNode getClassNode() { |
| return classNode; |
| } |
| |
| @Override |
| public void visitClassCodeContainer(final Statement code) { |
| super.visitClassCodeContainer(code); |
| } |
| |
| @Override |
| public Expression transform(Expression expr) { |
| if (expr instanceof StaticMethodCallExpression) { |
| return staticMethodCallExpressionTransformer.transformStaticMethodCallExpression((StaticMethodCallExpression) expr); |
| } |
| if (expr instanceof BinaryExpression) { |
| return binaryExpressionTransformer.transformBinaryExpression((BinaryExpression)expr); |
| } |
| if (expr instanceof MethodCallExpression) { |
| return methodCallExpressionTransformer.transformMethodCallExpression((MethodCallExpression) expr); |
| } |
| if (expr instanceof ClosureExpression) { |
| return closureExpressionTransformer.transformClosureExpression((ClosureExpression) expr); |
| } |
| if (expr instanceof ConstructorCallExpression) { |
| return constructorCallTransformer.transformConstructorCall((ConstructorCallExpression) expr); |
| } |
| if (expr instanceof BooleanExpression) { |
| return booleanExpressionTransformer.transformBooleanExpression((BooleanExpression)expr); |
| } |
| if (expr instanceof VariableExpression) { |
| return variableExpressionTransformer.transformVariableExpression((VariableExpression)expr); |
| } |
| if (expr instanceof RangeExpression) { |
| return rangeExpressionTransformer.transformRangeExpression(((RangeExpression)expr)); |
| } |
| if (expr instanceof ListExpression) { |
| return listExpressionTransformer.transformListExpression((ListExpression) expr); |
| } |
| if (expr instanceof CastExpression) { |
| return castExpressionTransformer.transformCastExpression(((CastExpression)expr)); |
| } |
| return super.transform(expr); |
| } |
| |
| /** |
| * Called by helpers when super.transform() is needed. |
| */ |
| final Expression superTransform(Expression expr) { |
| return super.transform(expr); |
| } |
| |
| @Override |
| public void visitClass(final ClassNode node) { |
| ClassNode prec = classNode; |
| classNode = node; |
| super.visitClass(node); |
| Iterator<InnerClassNode> innerClasses = classNode.getInnerClasses(); |
| while (innerClasses.hasNext()) { |
| InnerClassNode innerClassNode = innerClasses.next(); |
| visitClass(innerClassNode); |
| } |
| classNode = prec; |
| } |
| |
| @Override |
| protected void visitConstructorOrMethod(final MethodNode node, final boolean isConstructor) { |
| if (staticCompilationVisitor.isSkipMode(node)) { |
| // method has already been visited by a static type checking visitor |
| return; |
| } |
| super.visitConstructorOrMethod(node, isConstructor); |
| } |
| } |