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8312204: unexpected else with statement causes compiler crash

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Reviewed-by: vromero
This commit is contained in:
Jan Lahoda 2023-08-08 09:28:21 +00:00
parent 87a6acbeee
commit a1115a7a39
2 changed files with 41 additions and 3 deletions
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4
src/jdk.compiler/share/classes/com/sun/tools/javac/parser/VirtualParser.java
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@ -148,12 +148,12 @@ public class VirtualParser extends JavacParser {
@Override @Override
public int errPos() { public int errPos() {
throw new AssertionError(); return S.errPos();
} }
@Override @Override
public void errPos(int pos) { public void errPos(int pos) {
throw new AssertionError(); S.errPos(pos);
} }
@Override @Override

40
test/langtools/tools/javac/parser/JavacParserTest.java
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@ -23,7 +23,7 @@
/* /*
* @test * @test
* @bug 7073631 7159445 7156633 8028235 8065753 8205418 8205913 8228451 8237041 8253584 8246774 8256411 8256149 8259050 8266436 8267221 8271928 8275097 8293897 8295401 8304671 8310326 8312093 * @bug 7073631 7159445 7156633 8028235 8065753 8205418 8205913 8228451 8237041 8253584 8246774 8256411 8256149 8259050 8266436 8267221 8271928 8275097 8293897 8295401 8304671 8310326 8312093 8312204
* @summary tests error and diagnostics positions * @summary tests error and diagnostics positions
* @author Jan Lahoda * @author Jan Lahoda
* @modules jdk.compiler/com.sun.tools.javac.api * @modules jdk.compiler/com.sun.tools.javac.api
@ -2448,6 +2448,44 @@ public class JavacParserTest extends TestCase {
}.scan(cut, null); }.scan(cut, null);
} }
@Test //JDK-8312204
void testDanglingElse() throws IOException {
String code = """
void main() {
else ;
}
""";
DiagnosticCollector<JavaFileObject> coll =
new DiagnosticCollector<>();
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, coll,
List.of("--enable-preview", "--source", SOURCE_VERSION),
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
String result = cut.toString().replaceAll("\\R", "\n");
System.out.println("RESULT\n" + result);
assertEquals("incorrect AST",
result,
"""
\n\
/*synthetic*/ final class Test {
\n\
void main() {
(ERROR);
}
}""");
List<String> codes = new LinkedList<>();
for (Diagnostic<? extends JavaFileObject> d : coll.getDiagnostics()) {
codes.add(d.getLineNumber() + ":" + d.getColumnNumber() + ":" + d.getCode());
}
assertEquals("testDanglingElse: " + codes,
List.of("2:5:compiler.err.else.without.if"),
codes);
}
void run(String[] args) throws Exception { void run(String[] args) throws Exception {
int passed = 0, failed = 0; int passed = 0, failed = 0;
final Pattern p = (args != null && args.length > 0) final Pattern p = (args != null && args.length > 0)