/*
* Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 7073631 7159445 7156633 8028235 8065753
* @summary tests error and diagnostics positions
* @author Jan Lahoda
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.javac.tree
*/
import com.sun.source.tree.BinaryTree;
import com.sun.source.tree.BlockTree;
import com.sun.source.tree.ClassTree;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.ErroneousTree;
import com.sun.source.tree.ExpressionStatementTree;
import com.sun.source.tree.ExpressionTree;
import com.sun.source.tree.LambdaExpressionTree;
import com.sun.source.tree.MethodInvocationTree;
import com.sun.source.tree.MethodTree;
import com.sun.source.tree.ModifiersTree;
import com.sun.source.tree.PrimitiveTypeTree;
import com.sun.source.tree.StatementTree;
import com.sun.source.tree.Tree;
import com.sun.source.tree.Tree.Kind;
import com.sun.source.tree.VariableTree;
import com.sun.source.tree.WhileLoopTree;
import com.sun.source.util.SourcePositions;
import com.sun.source.util.TreeScanner;
import com.sun.source.util.Trees;
import com.sun.tools.javac.api.JavacTaskImpl;
import com.sun.tools.javac.main.Main;
import com.sun.tools.javac.main.Main.Result;
import com.sun.tools.javac.tree.JCTree;
import java.io.IOException;
import java.io.StringWriter;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.reflect.Method;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.util.regex.Pattern;
import javax.lang.model.type.TypeKind;
import javax.tools.Diagnostic;
import javax.tools.DiagnosticCollector;
import javax.tools.DiagnosticListener;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
public class JavacParserTest extends TestCase {
static final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
static final JavaFileManager fm = tool.getStandardFileManager(null, null, null);
private JavacParserTest(){}
public static void main(String... args) throws Exception {
try {
new JavacParserTest().run(args);
} finally {
fm.close();
}
}
class MyFileObject extends SimpleJavaFileObject {
private String text;
public MyFileObject(String text) {
super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
this.text = text;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return text;
}
}
/*
* converts Windows to Unix style LFs for comparing strings
*/
String normalize(String in) {
return in.replace(System.getProperty("line.separator"), "\n");
}
CompilationUnitTree getCompilationUnitTree(String code) throws IOException {
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
return cut;
}
List<String> getErroneousTreeValues(ErroneousTree node) {
List<String> values = new ArrayList<>();
if (node.getErrorTrees() != null) {
for (Tree t : node.getErrorTrees()) {
values.add(t.toString());
}
} else {
throw new RuntimeException("ERROR: No Erroneous tree "
+ "has been created.");
}
return values;
}
@Test
void testPositionForSuperConstructorCalls() throws IOException {
assert tool != null;
String code = "package test; public class Test {public Test() {super();}}";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
SourcePositions pos = Trees.instance(ct).getSourcePositions();
MethodTree method =
(MethodTree) ((ClassTree) cut.getTypeDecls().get(0)).getMembers().get(0);
ExpressionStatementTree es =
(ExpressionStatementTree) method.getBody().getStatements().get(0);
final int esStartPos = code.indexOf(es.toString());
final int esEndPos = esStartPos + es.toString().length();
assertEquals("testPositionForSuperConstructorCalls",
esStartPos, pos.getStartPosition(cut, es));
assertEquals("testPositionForSuperConstructorCalls",
esEndPos, pos.getEndPosition(cut, es));
MethodInvocationTree mit = (MethodInvocationTree) es.getExpression();
final int mitStartPos = code.indexOf(mit.toString());
final int mitEndPos = mitStartPos + mit.toString().length();
assertEquals("testPositionForSuperConstructorCalls",
mitStartPos, pos.getStartPosition(cut, mit));
assertEquals("testPositionForSuperConstructorCalls",
mitEndPos, pos.getEndPosition(cut, mit));
final int methodStartPos = mitStartPos;
final int methodEndPos = methodStartPos + mit.getMethodSelect().toString().length();
assertEquals("testPositionForSuperConstructorCalls",
methodStartPos, pos.getStartPosition(cut, mit.getMethodSelect()));
assertEquals("testPositionForSuperConstructorCalls",
methodEndPos, pos.getEndPosition(cut, mit.getMethodSelect()));
}
@Test
void testPositionForEnumModifiers() throws IOException {
final String theString = "public";
String code = "package test; " + theString + " enum Test {A;}";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
SourcePositions pos = Trees.instance(ct).getSourcePositions();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
ModifiersTree mt = clazz.getModifiers();
int spos = code.indexOf(theString);
int epos = spos + theString.length();
assertEquals("testPositionForEnumModifiers",
spos, pos.getStartPosition(cut, mt));
assertEquals("testPositionForEnumModifiers",
epos, pos.getEndPosition(cut, mt));
}
@Test
void testNewClassWithEnclosing() throws IOException {
final String theString = "Test.this.new d()";
String code = "package test; class Test { " +
"class d {} private void method() { " +
"Object o = " + theString + "; } }";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
SourcePositions pos = Trees.instance(ct).getSourcePositions();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
ExpressionTree est =
((VariableTree) ((MethodTree) clazz.getMembers().get(1)).getBody().getStatements().get(0)).getInitializer();
final int spos = code.indexOf(theString);
final int epos = spos + theString.length();
assertEquals("testNewClassWithEnclosing",
spos, pos.getStartPosition(cut, est));
assertEquals("testNewClassWithEnclosing",
epos, pos.getEndPosition(cut, est));
}
@Test
void testPreferredPositionForBinaryOp() throws IOException {
String code = "package test; public class Test {"
+ "private void test() {"
+ "Object o = null; boolean b = o != null && o instanceof String;"
+ "} private Test() {}}";
CompilationUnitTree cut = getCompilationUnitTree(code);
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
MethodTree method = (MethodTree) clazz.getMembers().get(0);
VariableTree condSt = (VariableTree) method.getBody().getStatements().get(1);
BinaryTree cond = (BinaryTree) condSt.getInitializer();
JCTree condJC = (JCTree) cond;
int condStartPos = code.indexOf("&&");
assertEquals("testPreferredPositionForBinaryOp",
condStartPos, condJC.pos);
}
@Test
void testErrorRecoveryForEnhancedForLoop142381() throws IOException {
String code = "package test; class Test { " +
"private void method() { " +
"java.util.Set<String> s = null; for (a : s) {} } }";
final List<Diagnostic<? extends JavaFileObject>> errors =
new LinkedList<Diagnostic<? extends JavaFileObject>>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm,
new DiagnosticListener<JavaFileObject>() {
public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
errors.add(diagnostic);
}
}, null, null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
StatementTree forStatement =
((MethodTree) clazz.getMembers().get(0)).getBody().getStatements().get(1);
assertEquals("testErrorRecoveryForEnhancedForLoop142381",
Kind.ENHANCED_FOR_LOOP, forStatement.getKind());
assertFalse("testErrorRecoveryForEnhancedForLoop142381", errors.isEmpty());
}
@Test
void testPositionAnnotationNoPackage187551() throws IOException {
String code = "\n@interface Test {}";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
Trees t = Trees.instance(ct);
assertEquals("testPositionAnnotationNoPackage187551",
1, t.getSourcePositions().getStartPosition(cut, clazz));
}
@Test
void testPositionsSane1() throws IOException {
performPositionsSanityTest("package test; class Test { " +
"private void method() { " +
"java.util.List<? extends java.util.List<? extends String>> l; " +
"} }");
}
@Test
void testPositionsSane2() throws IOException {
performPositionsSanityTest("package test; class Test { " +
"private void method() { " +
"java.util.List<? super java.util.List<? super String>> l; " +
"} }");
}
@Test
void testPositionsSane3() throws IOException {
performPositionsSanityTest("package test; class Test { " +
"private void method() { " +
"java.util.List<? super java.util.List<?>> l; } }");
}
private void performPositionsSanityTest(String code) throws IOException {
final List<Diagnostic<? extends JavaFileObject>> errors =
new LinkedList<Diagnostic<? extends JavaFileObject>>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm,
new DiagnosticListener<JavaFileObject>() {
public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
errors.add(diagnostic);
}
}, null, null, Arrays.asList(new MyFileObject(code)));
final CompilationUnitTree cut = ct.parse().iterator().next();
final Trees trees = Trees.instance(ct);
new TreeScanner<Void, Void>() {
private long parentStart = 0;
private long parentEnd = Integer.MAX_VALUE;
@Override
public Void scan(Tree node, Void p) {
if (node == null) {
return null;
}
long start = trees.getSourcePositions().getStartPosition(cut, node);
if (start == (-1)) {
return null; // synthetic tree
}
assertTrue(node.toString() + ":" + start + "/" + parentStart,
parentStart <= start);
long prevParentStart = parentStart;
parentStart = start;
long end = trees.getSourcePositions().getEndPosition(cut, node);
assertTrue(node.toString() + ":" + end + "/" + parentEnd,
end <= parentEnd);
long prevParentEnd = parentEnd;
parentEnd = end;
super.scan(node, p);
parentStart = prevParentStart;
parentEnd = prevParentEnd;
return null;
}
private void assertTrue(String message, boolean b) {
if (!b) fail(message);
}
}.scan(cut, null);
}
@Test
void testCorrectWildcardPositions1() throws IOException {
performWildcardPositionsTest("package test; import java.util.List; " +
"class Test { private void method() { List<? extends List<? extends String>> l; } }",
Arrays.asList("List<? extends List<? extends String>> l;",
"List<? extends List<? extends String>>",
"List",
"? extends List<? extends String>",
"List<? extends String>",
"List",
"? extends String",
"String"));
}
@Test
void testCorrectWildcardPositions2() throws IOException {
performWildcardPositionsTest("package test; import java.util.List; "
+ "class Test { private void method() { List<? super List<? super String>> l; } }",
Arrays.asList("List<? super List<? super String>> l;",
"List<? super List<? super String>>",
"List",
"? super List<? super String>",
"List<? super String>",
"List",
"? super String",
"String"));
}
@Test
void testCorrectWildcardPositions3() throws IOException {
performWildcardPositionsTest("package test; import java.util.List; " +
"class Test { private void method() { List<? super List<?>> l; } }",
Arrays.asList("List<? super List<?>> l;",
"List<? super List<?>>",
"List",
"? super List<?>",
"List<?>",
"List",
"?"));
}
@Test
void testCorrectWildcardPositions4() throws IOException {
performWildcardPositionsTest("package test; import java.util.List; " +
"class Test { private void method() { " +
"List<? extends List<? extends List<? extends String>>> l; } }",
Arrays.asList("List<? extends List<? extends List<? extends String>>> l;",
"List<? extends List<? extends List<? extends String>>>",
"List",
"? extends List<? extends List<? extends String>>",
"List<? extends List<? extends String>>",
"List",
"? extends List<? extends String>",
"List<? extends String>",
"List",
"? extends String",
"String"));
}
@Test
void testCorrectWildcardPositions5() throws IOException {
performWildcardPositionsTest("package test; import java.util.List; " +
"class Test { private void method() { " +
"List<? extends List<? extends List<? extends String >>> l; } }",
Arrays.asList("List<? extends List<? extends List<? extends String >>> l;",
"List<? extends List<? extends List<? extends String >>>",
"List",
"? extends List<? extends List<? extends String >>",
"List<? extends List<? extends String >>",
"List",
"? extends List<? extends String >",
"List<? extends String >",
"List",
"? extends String",
"String"));
}
void performWildcardPositionsTest(final String code,
List<String> golden) throws IOException {
final List<Diagnostic<? extends JavaFileObject>> errors =
new LinkedList<Diagnostic<? extends JavaFileObject>>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm,
new DiagnosticListener<JavaFileObject>() {
public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
errors.add(diagnostic);
}
}, null, null, Arrays.asList(new MyFileObject(code)));
final CompilationUnitTree cut = ct.parse().iterator().next();
final List<String> content = new LinkedList<String>();
final Trees trees = Trees.instance(ct);
new TreeScanner<Void, Void>() {
@Override
public Void scan(Tree node, Void p) {
if (node == null) {
return null;
}
long start = trees.getSourcePositions().getStartPosition(cut, node);
if (start == (-1)) {
return null; // synthetic tree
}
long end = trees.getSourcePositions().getEndPosition(cut, node);
String s = code.substring((int) start, (int) end);
content.add(s);
return super.scan(node, p);
}
}.scan(((MethodTree) ((ClassTree) cut.getTypeDecls().get(0)).getMembers().get(0)).getBody().getStatements().get(0), null);
assertEquals("performWildcardPositionsTest",golden.toString(),
content.toString());
}
@Test
void testStartPositionForMethodWithoutModifiers() throws IOException {
String code = "package t; class Test { <T> void t() {} }";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
MethodTree mt = (MethodTree) clazz.getMembers().get(0);
Trees t = Trees.instance(ct);
int start = (int) t.getSourcePositions().getStartPosition(cut, mt);
int end = (int) t.getSourcePositions().getEndPosition(cut, mt);
assertEquals("testStartPositionForMethodWithoutModifiers",
"<T> void t() {}", code.substring(start, end));
}
@Test
void testVariableInIfThen1() throws IOException {
String code = "package t; class Test { " +
"private static void t(String name) { " +
"if (name != null) String nn = name.trim(); } }";
DiagnosticCollector<JavaFileObject> coll =
new DiagnosticCollector<JavaFileObject>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, coll, null,
null, Arrays.asList(new MyFileObject(code)));
ct.parse();
List<String> codes = new LinkedList<String>();
for (Diagnostic<? extends JavaFileObject> d : coll.getDiagnostics()) {
codes.add(d.getCode());
}
assertEquals("testVariableInIfThen1",
Arrays.<String>asList("compiler.err.variable.not.allowed"),
codes);
}
@Test
void testVariableInIfThen2() throws IOException {
String code = "package t; class Test { " +
"private static void t(String name) { " +
"if (name != null) class X {} } }";
DiagnosticCollector<JavaFileObject> coll =
new DiagnosticCollector<JavaFileObject>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, coll, null,
null, Arrays.asList(new MyFileObject(code)));
ct.parse();
List<String> codes = new LinkedList<String>();
for (Diagnostic<? extends JavaFileObject> d : coll.getDiagnostics()) {
codes.add(d.getCode());
}
assertEquals("testVariableInIfThen2",
Arrays.<String>asList("compiler.err.class.not.allowed"), codes);
}
@Test
void testVariableInIfThen3() throws IOException {
String code = "package t; class Test { "+
"private static void t() { " +
"if (true) abstract class F {} }}";
DiagnosticCollector<JavaFileObject> coll =
new DiagnosticCollector<JavaFileObject>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, coll, null,
null, Arrays.asList(new MyFileObject(code)));
ct.parse();
List<String> codes = new LinkedList<String>();
for (Diagnostic<? extends JavaFileObject> d : coll.getDiagnostics()) {
codes.add(d.getCode());
}
assertEquals("testVariableInIfThen3",
Arrays.<String>asList("compiler.err.class.not.allowed"), codes);
}
@Test
void testVariableInIfThen4() throws IOException {
String code = "package t; class Test { "+
"private static void t(String name) { " +
"if (name != null) interface X {} } }";
DiagnosticCollector<JavaFileObject> coll =
new DiagnosticCollector<JavaFileObject>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, coll, null,
null, Arrays.asList(new MyFileObject(code)));
ct.parse();
List<String> codes = new LinkedList<String>();
for (Diagnostic<? extends JavaFileObject> d : coll.getDiagnostics()) {
codes.add(d.getCode());
}
assertEquals("testVariableInIfThen4",
Arrays.<String>asList("compiler.err.class.not.allowed"), codes);
}
@Test
void testVariableInIfThen5() throws IOException {
String code = "package t; class Test { "+
"private static void t() { " +
"if (true) } }";
DiagnosticCollector<JavaFileObject> coll =
new DiagnosticCollector<JavaFileObject>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, coll, null,
null, Arrays.asList(new MyFileObject(code)));
ct.parse();
List<String> codes = new LinkedList<String>();
for (Diagnostic<? extends JavaFileObject> d : coll.getDiagnostics()) {
codes.add(d.getCode());
}
assertEquals("testVariableInIfThen5",
Arrays.<String>asList("compiler.err.illegal.start.of.stmt"),
codes);
}
// see javac bug #6882235, NB bug #98234:
@Test
void testMissingExponent() throws IOException {
String code = "\nclass Test { { System.err.println(0e); } }";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(code)));
assertNotNull(ct.parse().iterator().next());
}
@Test
void testTryResourcePos() throws IOException {
final String code = "package t; class Test { " +
"{ try (java.io.InputStream in = null) { } } }";
CompilationUnitTree cut = getCompilationUnitTree(code);
new TreeScanner<Void, Void>() {
@Override
public Void visitVariable(VariableTree node, Void p) {
if ("in".contentEquals(node.getName())) {
JCTree.JCVariableDecl var = (JCTree.JCVariableDecl) node;
assertEquals("testTryResourcePos", "in = null) { } } }",
code.substring(var.pos));
}
return super.visitVariable(node, p);
}
}.scan(cut, null);
}
@Test
void testVarPos() throws IOException {
final String code = "package t; class Test { " +
"{ java.io.InputStream in = null; } }";
CompilationUnitTree cut = getCompilationUnitTree(code);
new TreeScanner<Void, Void>() {
@Override
public Void visitVariable(VariableTree node, Void p) {
if ("in".contentEquals(node.getName())) {
JCTree.JCVariableDecl var = (JCTree.JCVariableDecl) node;
assertEquals("testVarPos","in = null; } }",
code.substring(var.pos));
}
return super.visitVariable(node, p);
}
}.scan(cut, null);
}
// expected erroneous tree: int x = y;(ERROR);
@Test
void testOperatorMissingError() throws IOException {
String code = "package test; public class ErrorTest { "
+ "void method() { int x = y z } }";
CompilationUnitTree cut = getCompilationUnitTree(code);
final List<String> values = new ArrayList<>();
final List<String> expectedValues =
new ArrayList<>(Arrays.asList("[z]"));
new TreeScanner<Void, Void>() {
@Override
public Void visitErroneous(ErroneousTree node, Void p) {
values.add(getErroneousTreeValues(node).toString());
return null;
}
}.scan(cut, null);
assertEquals("testOperatorMissingError: The Erroneous tree "
+ "error values: " + values
+ " do not match expected error values: "
+ expectedValues, values, expectedValues);
}
// expected erroneous tree: String s = (ERROR);
@Test
void testMissingParenthesisError() throws IOException {
String code = "package test; public class ErrorTest { "
+ "void f() {String s = new String; } }";
CompilationUnitTree cut = getCompilationUnitTree(code);
final List<String> values = new ArrayList<>();
final List<String> expectedValues =
new ArrayList<>(Arrays.asList("[new String()]"));
new TreeScanner<Void, Void>() {
@Override
public Void visitErroneous(ErroneousTree node, Void p) {
values.add(getErroneousTreeValues(node).toString());
return null;
}
}.scan(cut, null);
assertEquals("testMissingParenthesisError: The Erroneous tree "
+ "error values: " + values
+ " do not match expected error values: "
+ expectedValues, values, expectedValues);
}
// expected erroneous tree: package test; (ERROR)(ERROR)
@Test
void testMissingClassError() throws IOException {
String code = "package Test; clas ErrorTest { "
+ "void f() {String s = new String(); } }";
CompilationUnitTree cut = getCompilationUnitTree(code);
final List<String> values = new ArrayList<>();
final List<String> expectedValues =
new ArrayList<>(Arrays.asList("[, clas]", "[]"));
new TreeScanner<Void, Void>() {
@Override
public Void visitErroneous(ErroneousTree node, Void p) {
values.add(getErroneousTreeValues(node).toString());
return null;
}
}.scan(cut, null);
assertEquals("testMissingClassError: The Erroneous tree "
+ "error values: " + values
+ " do not match expected error values: "
+ expectedValues, values, expectedValues);
}
// expected erroneous tree: void m1(int i) {(ERROR);{(ERROR);}
@Test
void testSwitchError() throws IOException {
String code = "package test; public class ErrorTest { "
+ "int numDays; void m1(int i) { switchh {i} { case 1: "
+ "numDays = 31; break; } } }";
CompilationUnitTree cut = getCompilationUnitTree(code);
final List<String> values = new ArrayList<>();
final List<String> expectedValues =
new ArrayList<>(Arrays.asList("[switchh]", "[i]"));
new TreeScanner<Void, Void>() {
@Override
public Void visitErroneous(ErroneousTree node, Void p) {
values.add(getErroneousTreeValues(node).toString());
return null;
}
}.scan(cut, null);
assertEquals("testSwitchError: The Erroneous tree "
+ "error values: " + values
+ " do not match expected error values: "
+ expectedValues, values, expectedValues);
}
// expected erroneous tree: class ErrorTest {(ERROR)
@Test
void testMethodError() throws IOException {
String code = "package Test; class ErrorTest { "
+ "static final void f) {String s = new String(); } }";
CompilationUnitTree cut = cut = getCompilationUnitTree(code);
final List<String> values = new ArrayList<>();
final List<String> expectedValues =
new ArrayList<>(Arrays.asList("[\nstatic final void f();]"));
new TreeScanner<Void, Void>() {
@Override
public Void visitErroneous(ErroneousTree node, Void p) {
values.add(normalize(getErroneousTreeValues(node).toString()));
return null;
}
}.scan(cut, null);
assertEquals("testMethodError: The Erroneous tree "
+ "error value: " + values
+ " does not match expected error values: "
+ expectedValues, values, expectedValues);
}
/*
* The following tests do not work just yet with nb-javac nor javac,
* they need further investigation, see CR: 7167356
*/
void testPositionBrokenSource126732a() throws IOException {
String[] commands = new String[]{
"return Runnable()",
"do { } while (true)",
"throw UnsupportedOperationException()",
"assert true",
"1 + 1",};
for (String command : commands) {
String code = "package test;\n"
+ "public class Test {\n"
+ " public static void test() {\n"
+ " " + command + " {\n"
+ " new Runnable() {\n"
+ " };\n"
+ " }\n"
+ "}";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null,
null, null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
MethodTree method = (MethodTree) clazz.getMembers().get(0);
List<? extends StatementTree> statements =
method.getBody().getStatements();
StatementTree ret = statements.get(0);
StatementTree block = statements.get(1);
Trees t = Trees.instance(ct);
int len = code.indexOf(command + " {") + (command + " ").length();
assertEquals(command, len,
t.getSourcePositions().getEndPosition(cut, ret));
assertEquals(command, len,
t.getSourcePositions().getStartPosition(cut, block));
}
}
void testPositionBrokenSource126732b() throws IOException {
String[] commands = new String[]{
"break",
"break A",
"continue ",
"continue A",};
for (String command : commands) {
String code = "package test;\n"
+ "public class Test {\n"
+ " public static void test() {\n"
+ " while (true) {\n"
+ " " + command + " {\n"
+ " new Runnable() {\n"
+ " };\n"
+ " }\n"
+ " }\n"
+ "}";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null,
null, null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
MethodTree method = (MethodTree) clazz.getMembers().get(0);
List<? extends StatementTree> statements =
((BlockTree) ((WhileLoopTree) method.getBody().getStatements().get(0)).getStatement()).getStatements();
StatementTree ret = statements.get(0);
StatementTree block = statements.get(1);
Trees t = Trees.instance(ct);
int len = code.indexOf(command + " {") + (command + " ").length();
assertEquals(command, len,
t.getSourcePositions().getEndPosition(cut, ret));
assertEquals(command, len,
t.getSourcePositions().getStartPosition(cut, block));
}
}
void testStartPositionEnumConstantInit() throws IOException {
String code = "package t; enum Test { AAA; }";
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
VariableTree enumAAA = (VariableTree) clazz.getMembers().get(0);
Trees t = Trees.instance(ct);
int start = (int) t.getSourcePositions().getStartPosition(cut,
enumAAA.getInitializer());
assertEquals("testStartPositionEnumConstantInit", -1, start);
}
@Test
void testVoidLambdaParameter() throws IOException {
String code = "package t; class Test { " +
"Runnable r = (void v) -> { };" +
"}";
DiagnosticCollector<JavaFileObject> coll =
new DiagnosticCollector<>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, coll, null,
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
ClassTree clazz = (ClassTree) cut.getTypeDecls().get(0);
VariableTree field = (VariableTree) clazz.getMembers().get(0);
assertEquals("actual kind: " + field.getInitializer().getKind(),
field.getInitializer().getKind(),
Kind.LAMBDA_EXPRESSION);
LambdaExpressionTree lambda = (LambdaExpressionTree) field.getInitializer();
assertEquals("actual parameters: " + lambda.getParameters().size(),
lambda.getParameters().size(),
1);
Tree paramType = lambda.getParameters().get(0).getType();
assertEquals("actual parameter type: " + paramType.getKind(),
paramType.getKind(),
Kind.PRIMITIVE_TYPE);
TypeKind primitiveTypeKind = ((PrimitiveTypeTree) paramType).getPrimitiveTypeKind();
assertEquals("actual parameter type: " + primitiveTypeKind,
primitiveTypeKind,
TypeKind.VOID);
}
@Test //JDK-8065753
void testWrongFirstToken() throws IOException {
String code = "<";
String expectedErrors = "Test.java:1:1: compiler.err.expected3: class, interface, enum\n" +
"1 error\n";
StringWriter out = new StringWriter();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(out, fm, null,
Arrays.asList("-XDrawDiagnostics"), null, Arrays.asList(new MyFileObject(code)));
Result errorCode = ct.doCall();
assertEquals("the error code is not correct; actual:" + errorCode, Main.Result.ERROR, errorCode);
String actualErrors = normalize(out.toString());
assertEquals("the error message is not correct, actual: " + actualErrors, expectedErrors, actualErrors);
}
void run(String[] args) throws Exception {
int passed = 0, failed = 0;
final Pattern p = (args != null && args.length > 0)
? Pattern.compile(args[0])
: null;
for (Method m : this.getClass().getDeclaredMethods()) {
boolean selected = (p == null)
? m.isAnnotationPresent(Test.class)
: p.matcher(m.getName()).matches();
if (selected) {
try {
m.invoke(this, (Object[]) null);
System.out.println(m.getName() + ": OK");
passed++;
} catch (Throwable ex) {
System.out.printf("Test %s failed: %s %n", m, ex.getCause());
failed++;
}
}
}
System.out.printf("Passed: %d, Failed %d%n", passed, failed);
if (failed > 0) {
throw new RuntimeException("Tests failed: " + failed);
}
if (passed == 0 && failed == 0) {
throw new AssertionError("No test(s) selected: passed = " +
passed + ", failed = " + failed + " ??????????");
}
}
}
abstract class TestCase {
void assertEquals(String message, int i, int pos) {
if (i != pos) {
fail(message);
}
}
void assertFalse(String message, boolean bvalue) {
if (bvalue == true) {
fail(message);
}
}
void assertEquals(String message, int i, long l) {
if (i != l) {
fail(message + ":" + i + ":" + l);
}
}
void assertEquals(String message, Object o1, Object o2) {
if (o1 != null && o2 != null && !o1.equals(o2)) {
fail(message);
}
if (o1 == null && o2 != null) {
fail(message);
}
}
void assertNotNull(Object o) {
if (o == null) {
fail();
}
}
void fail() {
fail("test failed");
}
void fail(String message) {
throw new RuntimeException(message);
}
/**
* Indicates that the annotated method is a test method.
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Test {}
}