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- /* *******************************************************************
- * Copyright (c) 2005-2008 Contributors
- * All rights reserved.
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * ******************************************************************/
-
- package org.aspectj.util;
-
- import junit.framework.TestCase;
-
- import org.aspectj.util.GenericSignature.ClassSignature;
- import org.aspectj.util.GenericSignature.ClassTypeSignature;
- import org.aspectj.util.GenericSignature.FieldTypeSignature;
- import org.aspectj.util.GenericSignature.SimpleClassTypeSignature;
-
- /**
- * @author Adrian Colyer
- * @author Andy Clement
- */
- public class GenericSignatureParserTest extends TestCase {
-
- GenericSignatureParser parser;
-
- public void testSimpleTokenize() {
- String[] tokens = parser.tokenize("Ljava/lang/String;");
- assertEquals(new String[] { "Ljava", "/", "lang", "/", "String", ";" }, tokens);
- }
-
- public void testTokenizeWithWildTypeArguments() {
- String[] tokens = parser.tokenize("Ljava/lang/String<*>;");
- assertEquals(new String[] { "Ljava", "/", "lang", "/", "String", "<", "*", ">", ";" }, tokens);
- }
-
- public void testTokenizeWithExtendsTypeArguments() {
- String[] tokens = parser.tokenize("Ljava/util/List<+TE>;");
- assertEquals(new String[] { "Ljava", "/", "util", "/", "List", "<", "+", "TE", ">", ";" }, tokens);
- }
-
- public void testTokenizeWithSuperTypeArguments() {
- String[] tokens = parser.tokenize("Ljava/util/List<-TE>;");
- assertEquals(new String[] { "Ljava", "/", "util", "/", "List", "<", "-", "TE", ">", ";" }, tokens);
- }
-
- public void testTokenizeArrayType() {
- String[] tokens = parser.tokenize("[Ljava/lang/String;");
- assertEquals(new String[] { "[", "Ljava", "/", "lang", "/", "String", ";" }, tokens);
- }
-
- public void testTokenizeFormalTypeParameters() {
- String[] tokens = parser.tokenize("<T:Ljava/lang/String;:Ljava/util/Comparable;>");
- assertEquals(new String[] { "<", "T", ":", "Ljava", "/", "lang", "/", "String", ";", ":", "Ljava", "/", "util", "/",
- "Comparable", ";", ">" }, tokens);
- }
-
- public void testParseClassSignatureSimple() {
- ClassSignature sig = parser.parseAsClassSignature("Ljava/lang/String;");
- assertEquals("No type parameters", 0, sig.formalTypeParameters.length);
- assertEquals("No superinterfaces", 0, sig.superInterfaceSignatures.length);
- assertEquals("Ljava/lang/String;", sig.superclassSignature.classSignature);
- SimpleClassTypeSignature outerType = sig.superclassSignature.outerType;
- assertEquals("Ljava/lang/String;", outerType.identifier);
- assertEquals("No type args", 0, outerType.typeArguments.length);
- }
-
- public void testParseClassSignatureTypeArgs() {
- ClassSignature sig = parser.parseAsClassSignature("Ljava/util/List<+Ljava/lang/String;>;");
- assertEquals("No type parameters", 0, sig.formalTypeParameters.length);
- assertEquals("No superinterfaces", 0, sig.superInterfaceSignatures.length);
- assertEquals("Ljava/util/List<+Ljava/lang/String;>;", sig.superclassSignature.classSignature);
- SimpleClassTypeSignature outerType = sig.superclassSignature.outerType;
- assertEquals("Ljava/util/List", outerType.identifier);
- assertEquals("One type arg", 1, outerType.typeArguments.length);
- assertTrue(outerType.typeArguments[0].isPlus);
- assertEquals("+Ljava/lang/String;", outerType.typeArguments[0].toString());
- }
-
- public void testParseClassSignatureTheFullMonty() {
- ClassSignature sig = parser
- .parseAsClassSignature("<E:Ljava/lang/String;:Ljava/lang/Number<TE;>;>Ljava/util/List<TE;>;Ljava/util/Comparable<-TE;>;");
- assertEquals("1 formal parameter", 1, sig.formalTypeParameters.length);
- assertEquals("E", sig.formalTypeParameters[0].identifier);
- ClassTypeSignature fsig = (ClassTypeSignature) sig.formalTypeParameters[0].classBound;
- assertEquals("Ljava/lang/String;", fsig.classSignature);
- assertEquals("1 interface bound", 1, sig.formalTypeParameters[0].interfaceBounds.length);
- ClassTypeSignature isig = (ClassTypeSignature) sig.formalTypeParameters[0].interfaceBounds[0];
- assertEquals("Ljava/lang/Number<TE;>;", isig.classSignature);
- assertEquals("Ljava/util/List<TE;>;", sig.superclassSignature.classSignature);
- assertEquals("1 type argument", 1, sig.superclassSignature.outerType.typeArguments.length);
- assertEquals("TE;", sig.superclassSignature.outerType.typeArguments[0].toString());
- assertEquals("1 super interface", 1, sig.superInterfaceSignatures.length);
- assertEquals("Ljava/util/Comparable<-TE;>;", sig.superInterfaceSignatures[0].toString());
- }
-
- public void testFunky_406167() {
- ClassSignature sig = parser
- .parseAsClassSignature("Lcom/google/android/gms/internal/hb<TT;>.com/google/android/gms/internal/hb$b<Ljava/lang/Boolean;>;");
- // Note the package prefix on the nested types has been dropped
- assertEquals("Lcom/google/android/gms/internal/hb<TT;>.hb$b<Ljava/lang/Boolean;>;",sig.superclassSignature.toString());
- sig = parser
- .parseAsClassSignature("Lcom/a/a/b/t<TK;TV;>.com/a/a/b/af.com/a/a/b/ag;Ljava/util/ListIterator<TV;>;");
- // Note the package prefix on the nested types has been dropped
- assertEquals("Lcom/a/a/b/t<TK;TV;>.af.ag;",sig.superclassSignature.toString());
- assertEquals("Ljava/util/ListIterator<TV;>;",sig.superInterfaceSignatures[0].toString());
- sig = parser.parseAsClassSignature("Lcom/google/android/gms/internal/hb.com/google/android/gms/internal/hb$b<Ljava/lang/Boolean;>;");
- // Note the package prefix on the nested types has been dropped
- assertEquals("Lcom/google/android/gms/internal/hb.hb$b<Ljava/lang/Boolean;>;",sig.superclassSignature.toString());
- sig = parser
- .parseAsClassSignature("Lcom/a/a/b/t.com/a/a/b/af.com/a/a/b/ag;Ljava/util/ListIterator<TV;>;");
- // Note the package prefix on the nested types has been dropped
- assertEquals("Lcom/a/a/b/t.af.ag;",sig.superclassSignature.toString());
- assertEquals("Ljava/util/ListIterator<TV;>;",sig.superInterfaceSignatures[0].toString());
- }
-
-
- public void testFieldSignatureParsingClassType() {
- FieldTypeSignature fsig = parser.parseAsFieldSignature("Ljava/lang/String;");
- assertTrue("ClassTypeSignature", fsig instanceof ClassTypeSignature);
- assertEquals("Ljava/lang/String;", fsig.toString());
- }
-
- public void testFieldSignatureParsingArrayType() {
- FieldTypeSignature fsig = parser.parseAsFieldSignature("[Ljava/lang/String;");
- assertTrue("ArrayTypeSignature", fsig instanceof GenericSignature.ArrayTypeSignature);
- assertEquals("[Ljava/lang/String;", fsig.toString());
- }
-
- public void testFieldSignatureParsingTypeVariable() {
- FieldTypeSignature fsig = parser.parseAsFieldSignature("TT;");
- assertTrue("TypeVariableSignature", fsig instanceof GenericSignature.TypeVariableSignature);
- assertEquals("TT;", fsig.toString());
- }
-
- public void testSimpleMethodSignatureParsing() {
- GenericSignature.MethodTypeSignature mSig = parser.parseAsMethodSignature("()V");
- assertEquals("No type parameters", 0, mSig.formalTypeParameters.length);
- assertEquals("No parameters", 0, mSig.parameters.length);
- assertEquals("Void return type", "V", mSig.returnType.toString());
- assertEquals("No throws", 0, mSig.throwsSignatures.length);
- }
-
- public void testMethodSignatureTypeParams() {
- GenericSignature.MethodTypeSignature mSig = parser.parseAsMethodSignature("<T:>(TT;)V");
- assertEquals("One type parameter", 1, mSig.formalTypeParameters.length);
- assertEquals("T", mSig.formalTypeParameters[0].identifier);
- assertEquals("Ljava/lang/Object;", mSig.formalTypeParameters[0].classBound.toString());
- assertEquals("One parameter", 1, mSig.parameters.length);
- assertEquals("TT;", mSig.parameters[0].toString());
- assertEquals("Void return type", "V", mSig.returnType.toString());
- assertEquals("No throws", 0, mSig.throwsSignatures.length);
- }
-
- public void testMethodSignatureGenericReturn() {
- GenericSignature.MethodTypeSignature mSig = parser.parseAsMethodSignature("<T:>()TT;");
- assertEquals("One type parameter", 1, mSig.formalTypeParameters.length);
- assertEquals("T", mSig.formalTypeParameters[0].identifier);
- assertEquals("Ljava/lang/Object;", mSig.formalTypeParameters[0].classBound.toString());
- assertEquals("No parameters", 0, mSig.parameters.length);
- assertEquals("'T' return type", "TT;", mSig.returnType.toString());
- assertEquals("No throws", 0, mSig.throwsSignatures.length);
- }
-
- public void testMethodSignatureThrows() {
- GenericSignature.MethodTypeSignature mSig = parser
- .parseAsMethodSignature("<T:>(TT;)V^Ljava/lang/Exception;^Ljava/lang/RuntimeException;");
- assertEquals("One type parameter", 1, mSig.formalTypeParameters.length);
- assertEquals("T", mSig.formalTypeParameters[0].identifier);
- assertEquals("Ljava/lang/Object;", mSig.formalTypeParameters[0].classBound.toString());
- assertEquals("One parameter", 1, mSig.parameters.length);
- assertEquals("TT;", mSig.parameters[0].toString());
- assertEquals("Void return type", "V", mSig.returnType.toString());
- assertEquals("2 throws", 2, mSig.throwsSignatures.length);
- assertEquals("Ljava/lang/Exception;", mSig.throwsSignatures[0].toString());
- assertEquals("Ljava/lang/RuntimeException;", mSig.throwsSignatures[1].toString());
- }
-
- public void testMethodSignaturePrimitiveParams() {
- GenericSignature.MethodTypeSignature mSig = parser.parseAsMethodSignature("(ILjava/lang/Object;)V");
- assertEquals("2 parameters", 2, mSig.parameters.length);
- assertEquals("I", mSig.parameters[0].toString());
- assertEquals("Ljava/lang/Object;", mSig.parameters[1].toString());
- }
-
- public void testFullyQualifiedSuperclassAfterTypeParams() {
- try {
- GenericSignature.FieldTypeSignature cSig = parser.parseAsFieldSignature("Ljava/util/List</;");
- fail("Expected IllegalStateException");
- } catch (IllegalStateException ex) {
- assertTrue(ex.getMessage().indexOf("Ljava/util/List</;") != -1);
- }
- }
-
- public void testPr107784() {
- parser
- .parseAsMethodSignature("(Lcom/cibc/responders/mapping/CommonDataBeanScenario;Ljava/lang/Object;)Lcom/cibc/responders/response/Formatter<[BLjava/lang/Object;>;");
- parser.parseAsClassSignature("<Parent:Ljava/lang/Object;Child:Ljava/lang/Object;>Ljava/lang/Object;");
- }
-
- private void assertEquals(String[] expected, String[] actual) {
- if (actual.length != expected.length) {
- int shorter = Math.min(expected.length, actual.length);
- for (int i = 0; i < shorter; i++) {
- if (!actual[i].equals(expected[i])) {
- fail("Expected " + expected[i] + " at position " + i + " but found " + actual[i]);
- }
- }
- fail("Expected " + expected.length + " tokens but got " + actual.length + tokensToString(actual));
- }
- for (int i = 0; i < actual.length; i++) {
- if (!actual[i].equals(expected[i])) {
- fail("Expected " + expected[i] + " at position " + i + " but found " + actual[i]);
- }
- }
- }
-
- private String tokensToString(String[] tokens) {
- StringBuffer sb = new StringBuffer();
- sb.append(tokens[0]);
- for (int i = 1; i < tokens.length; i++) {
- sb.append(",");
- sb.append(tokens[i]);
- }
- return sb.toString();
- }
-
- protected void setUp() throws Exception {
- super.setUp();
- parser = new GenericSignatureParser();
- }
- }
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