| /* |
| * 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 groovy.bugs |
| |
| import groovy.test.GroovyTestCase |
| import org.codehaus.groovy.ast.ClassCodeExpressionTransformer |
| import org.codehaus.groovy.ast.ClassCodeVisitorSupport |
| import org.codehaus.groovy.ast.ClassNode |
| import org.codehaus.groovy.ast.expr.MethodCallExpression |
| import org.codehaus.groovy.control.CompilerConfiguration |
| import org.codehaus.groovy.control.SourceUnit |
| import org.codehaus.groovy.control.customizers.CompilationCustomizer |
| import org.codehaus.groovy.classgen.GeneratorContext |
| |
| import static org.codehaus.groovy.control.CompilePhase.CANONICALIZATION |
| import static org.codehaus.groovy.control.CompilePhase.INSTRUCTION_SELECTION |
| |
| class Groovy7951Bug extends GroovyTestCase { |
| |
| void testTransformMethodCallExpressionPassesGenericTypes() { |
| |
| def config = new CompilerConfiguration() |
| |
| // Just visiting the transform method on each expression is enough to verify |
| // that the checker is able to see the generic types in the later phase. |
| def transformer = new CompilationCustomizer(CANONICALIZATION) { |
| @Override void call(SourceUnit src, GeneratorContext ctxt, ClassNode cn) { |
| new ClassCodeExpressionTransformer() { |
| @Override SourceUnit getSourceUnit() { src } |
| }.visitClass(cn) |
| } |
| } |
| |
| boolean assertWasChecked |
| def checker = new CompilationCustomizer(INSTRUCTION_SELECTION) { |
| void call(SourceUnit src, GeneratorContext ctxt, ClassNode cn) { |
| new ClassCodeVisitorSupport() { |
| @Override void visitMethodCallExpression(MethodCallExpression mce) { |
| if (mce.objectExpression.text == 'java.util.Collections' && |
| mce.method.text == 'emptyList') { |
| assert mce.genericsTypes != null && mce.genericsTypes*.name == ['Date'] |
| assertWasChecked = true |
| } |
| super.visitMethodCallExpression(mce) |
| } |
| @Override SourceUnit getSourceUnit() { src } |
| }.visitClass(cn) |
| } |
| } |
| |
| config.addCompilationCustomizers(transformer, checker) |
| |
| new GroovyShell(config).parse ''' |
| Collections.<Date>emptyList() |
| ''' |
| |
| assert assertWasChecked |
| } |
| |
| } |