| // Copyright (c) 2020, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.graph.genericsignature; |
| |
| import static com.android.tools.r8.DiagnosticsMatcher.diagnosticMessage; |
| import static com.google.common.base.Predicates.alwaysFalse; |
| import static org.hamcrest.CoreMatchers.containsString; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertThrows; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestDiagnosticMessages; |
| import com.android.tools.r8.TestDiagnosticMessagesImpl; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.graph.DexItemFactory; |
| import com.android.tools.r8.graph.GenericSignature; |
| import com.android.tools.r8.graph.GenericSignature.MethodTypeSignature; |
| import com.android.tools.r8.graph.GenericSignaturePrinter; |
| import com.android.tools.r8.naming.NamingLens; |
| import com.android.tools.r8.origin.Origin; |
| import com.android.tools.r8.utils.Reporter; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class MethodSignatureTest extends TestBase { |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withNoneRuntime().build(); |
| } |
| |
| public MethodSignatureTest(TestParameters parameters) { |
| parameters.assertNoneRuntime(); |
| } |
| |
| @Test |
| public void testEmptyVoid() { |
| testParsingAndPrintingEqual("()V"); |
| } |
| |
| @Test |
| public void testThrowsOnly() { |
| testParsingAndPrintingError("^TT;") |
| .assertAllErrorsMatch( |
| diagnosticMessage(containsString("Invalid signature '^TT;' for method A."))); |
| } |
| |
| @Test |
| public void testArguments() { |
| testParsingAndPrintingEqual("(TT;Lfoo/bar/Baz;[I)V"); |
| } |
| |
| @Test |
| public void testReturnType() { |
| testParsingAndPrintingEqual("()Lfoo/Baz;"); |
| } |
| |
| @Test |
| public void testTypeVariableReturn() { |
| testParsingAndPrintingEqual("()TR;"); |
| } |
| |
| @Test |
| public void testThrowsSingle() { |
| testParsingAndPrintingEqual("(Lfoo/Bar;)V^Ljava/lang/Exception;"); |
| } |
| |
| @Test |
| public void testThrowsMultiple() { |
| testParsingAndPrintingEqual("(Lfoo/Bar;)V^Ljava/lang/Exception;^TT;^Lfoo/bar/Baz;"); |
| } |
| |
| @Test |
| public void testThrowsMultipleError() { |
| // TODO(b/170287583): This should throw an error. |
| assertThrows( |
| AssertionError.class, |
| () -> testParsingAndPrintingEqual("(Lfoo/Bar;)V^Ljava/lang/Exception;^TT;Lfoo/bar/Baz;")); |
| } |
| |
| @Test |
| public void testTypeArgument() { |
| testParsingAndPrintingEqual("<T:Ljava/lang/Object;>([I)V"); |
| } |
| |
| @Test |
| public void testTypeArgumentMultiple() { |
| testParsingAndPrintingEqual("<T:Ljava/lang/Object;R::LConsumer<TT;>;>([I)V"); |
| } |
| |
| @Test |
| public void testTypeArgumentMultipleThrows() { |
| testParsingAndPrintingEqual( |
| "<T:Ljava/lang/Object;R::LConsumer<TT;>;>([Lfoo<TR;>;)Lbaz<TR;>;^TR;^Lfoo<TT;>;"); |
| } |
| |
| @Test |
| public void testFormalTypeParameterEmptyInterfaceError() { |
| testParsingAndPrintingError("<T:Ljava/lang/Object;:>Lfoo/bar/baz<TT;>;") |
| .assertAllWarningsMatch( |
| diagnosticMessage( |
| containsString("Invalid signature '<T:Ljava/lang/Object;:>Lfoo/bar/baz<TT;>;'"))); |
| } |
| |
| private void testParsingAndPrintingEqual(String signature) { |
| MethodTypeSignature parsed = |
| GenericSignature.parseMethodSignature( |
| "A", signature, Origin.unknown(), new DexItemFactory(), new Reporter()); |
| GenericSignaturePrinter genericSignaturePrinter = |
| new GenericSignaturePrinter(NamingLens.getIdentityLens(), alwaysFalse()); |
| genericSignaturePrinter.visitMethodSignature(parsed); |
| String outSignature = genericSignaturePrinter.toString(); |
| assertEquals(signature, outSignature); |
| } |
| |
| private TestDiagnosticMessages testParsingAndPrintingError(String signature) { |
| TestDiagnosticMessagesImpl testDiagnosticMessages = new TestDiagnosticMessagesImpl(); |
| MethodTypeSignature parsed = |
| GenericSignature.parseMethodSignature( |
| "A", |
| signature, |
| Origin.unknown(), |
| new DexItemFactory(), |
| new Reporter(testDiagnosticMessages)); |
| assertEquals(MethodTypeSignature.noSignature(), parsed); |
| return testDiagnosticMessages; |
| } |
| } |