Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[21] Pattern-matching in instanceof doesn't work #1726

Closed
boris-petrov opened this issue Dec 11, 2023 · 5 comments · Fixed by #1731
Closed

[21] Pattern-matching in instanceof doesn't work #1726

boris-petrov opened this issue Dec 11, 2023 · 5 comments · Fixed by #1731
Assignees
Milestone

Comments

@boris-petrov
Copy link

class Main {
	record A(int x) {
	}

	public int foo(Object a) {
		return a instanceof A(int x) ? x : 1;
	}
}

This leads to an error: This method must return a result of type int which is wrong.

@srikanth-sankaran srikanth-sankaran self-assigned this Dec 12, 2023
@srikanth-sankaran
Copy link
Contributor

Reproduced, I'll take a look. Initial investigation shows parse tree looks bad: has a return statement with no expression.

@srikanth-sankaran
Copy link
Contributor

srikanth-sankaran commented Dec 12, 2023

Problem arises since we leave the optional modifiers for the RecordPattern's ReferenceType unclaimed.

RecordPattern ::= Modifiersopt ReferenceType PushLPAREN PatternListopt PushRPAREN

This messes up the expressionLengthStack and bad things happen from then on

@boris-petrov
Copy link
Author

@srikanth-sankaran thanks for so quickly handling the issues I opened! As I'm not familiar with the release process here, can I expect these issues to be fixed some time for Eclipse 2023-12 or do I have to wait for the next major release (2024-03)?

@akurtakov
Copy link
Contributor

2023-12 is done deal and all work goes against 2024-03 which you can try (and even use as your main IDE) if you get the I-build from https://download.eclipse.org/eclipse/downloads/index.html .
Note that commits make it to the builds after a successful build, usually on the next day.

@Madjosz
Copy link

Madjosz commented Dec 12, 2023

Confirmed works in Eclipse SDK build I20231212-0120.

mpalat added a commit that referenced this issue Dec 19, 2023
* configure default output.. = bin/

* JavaSearchScope: improve encloses() performance  #474

* [test] remove outdated latestBREE project

* fix some ecj markers

Especially after moving files to compiler.batch - which has no resource
warnings - the @SuppressWarnings("resource") is not used - leading to a
marker

* Single async "Synchronizing projects" Job #419

Scheduling multiple times "while the job is running, the job will still
only be rescheduled once" (javadoc) so there will be always only a
single job running.
Using a Set prevents touching projects multiple times.

#419

Manually tested by changing Compiler Building options "Circular
dependencies", which triggers a new build.

* [test] fix AbstractJavaModelTests #1333

avoid asynchronous refresh. Implementation taken from
org.eclipse.core.tests.resources.refresh.RefreshProviderTest.joinAutoRefreshJobs()

#1333

* TestVerifier: never wait 100ms

improve test time, accurate timeout

* [performance] ClassFileReader: use already open Zip File

instead of creating new ZipFile instance.

also:
* use Files.readAllBytes
* removed unused code
* faster toUri avoiding isDirectory() check for the JARs which are known
to be no directory

improves performance of read() on windows by factor 2
tested with java reference search to java.lang.Object

* Stop skipping compare-with-baseline for jdt.annotation v2

One less thing that has to be manually tracked and done.

* Version bump for jdt.annotation

Pointed by
https://download.eclipse.org/eclipse/downloads/drops4/I20231130-0020/buildlogs/reporeports/reports/versionChecks.html

* Fix github urls in NOTICE file

* Use try-with-resource and enable warning if not

org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=warning

StringWriter does not need flush() or close() and can not throw
IOException.

Tests excluded.

To get rid of boiler plate code.

* version bumps

* [21] JEP 430 String Templates (#1513)

Grammar, compiler AST, resolution and code generation changes

* Javadoc: fix unclosed <code>

* break from loop within labeled block causes loss of nullness info (#1660)

fixes #1659

* Fixes incorrect Javadoc after StringBuffer to StringBuilder change

* NPE in ASTRewriteFlattener as return value of GuardedPattern.getPattern() is null  (#1647)

NPE in ASTRewriteFlattener as return value of
GuardedPattern.getPattern() is null

* Adding pomless build to JDT core

This enables pomless builds for JDT coreand removes the simple pom
files.

Future commits can reduce the usage of pom files further. This might
require enhancements in pomless builds to specify the test classes and
suites eclipse-tycho/tycho#3105

* Using Simplify lambda expression and method reference syntax cleanup on
core

Using the JDT UI "Simplify lambda expression and method reference
syntax" clean-up on jdt.core.

* Internal compiler error: ArrayIndexOutOfBoundsException in latest i build (#1664)


fixes #1661

* Using Simplify lambda expression and method reference syntax cleanup on
all plug-ins except core

Using the JDT UI "Simplify lambda expression and method reference
syntax" clean-up on all plug-ins except jdt.core.

* Using short-circuit in IncrementalImageBuilder

* Re-normalize line-endings in git of all files to Linux style ("\n")

Some files were checked-in into git having windows style line
endings (\r\n). This is in general not wanted because it can cause
modified files without any difference in git-staging on Windows if
auto-crlf is enabled.

To re-normalize line endings of all files use the following command
(including dot):

git add --renormalize .

* Bump bundle dependencies to trigger a rebuild / fix SDK build error

The change in bytecode of FullSourceWorkspaceBuildTests is due the
constant value change of
o.e.jdt.internal.compiler.parser.TerminalTokens.TokenNameEOF coming
from #1513.

Fixes eclipse-platform/eclipse.platform.releng.aggregator#1617

* False positive "Dead code" compiler error reported on org.eclipse.pde.internal.core.util.PDEJavaHelper.getExternalPackageFragment(String, String) (#1671)

fixes #1667

* Use diamond operator in jdt.core repo

Using the JDT UI clean-up, this removes the redundant type information.

Also activating
org.eclipse.jdt.core.compiler.problem.redundantSpecificationOfTypeArguments=warning
The rest of the changes in the prefs file were done by the tooling, not
by
selecting anther value.

* Improve constructor completions inside method invocations Fix #1587 (#1588)

* Try-with-resource clean-up in JDT core

Using the JDT UI try-with-resource clean-up on core.
Also manually inlining the declaration of multiple places into the try()
clause.

* Make inner classes static where possible in JDT core

Running the JDT performnace clean-up "Make inner classes static where
possible" in JDT core

* Use Use lazy logical operator (&& and ||)

Running the performance clean-up "Use lazy logical operator (&& and ||)"
on JDT core

* Using Integer.toString directly in Disassembler

It is also a JDT UI performance clean-up but this clean-up found only
one occurrence.

* use Path.of() to avoid 'Potential resource leak' warnings

* @NonNullByDefault does not work for type arguments of a local type (#1694)

fixes #1693

* ClassCastException during code completion on Annotation (#1696)

fixes #1440

Also fixes noise from #1662

* CompilationUnitResolver: Name the CU that causes Exception (#1690)

for example during Cleanup
eclipse-jdt/eclipse.jdt.ui#950

Co-authored-by: Jörg Kubitz <jkubitz-eclipse@gmx.de>

* Code selection support for String template expressions (#1699)

Fixes  #1685

* Report error if string template is used without preview option enabled (#1697)

Improves the fix for #544

* ECJ crashes when an embedded expression contains broken code (#1702)

Set haltOnSyntaxError when parsing for embedded expressions. Also using the correct delimiters for text blocks in printExpression() methods.

* Selection model tests for string templates (#1704)

* tests: enable discouragedReference=warning, declare x-friends

to get rid of warnings during build (does not respect the jdt
preferences)

* Javadoc format fixes

Contributes to
eclipse-platform/eclipse.platform.releng.aggregator#1531

* Performance: Add public API for Batch Reads in UI - closes #1614

During Batches:
* cache Zip Files
* enable JavaModelManager.temporaryCache

Also:
* uses Batch Reads during some core actions that benefit from it.
* adds trace logging when caching is missing.

#1614

* Javadoc format fixes (part 2)

Contributes to
eclipse-platform/eclipse.platform.releng.aggregator#1531.
It's a pity that this takes multiple cycles but fixing one thing from
the log uncovers the next.

* ECJ 3.36.0 regression: The type 'E extends java.lang.Exception' is not a valid substitute for the type parameter 'E extends java.lang.@nonnull Exception' (#1708)

fixes #1691

+ also slightly updates NullAnnotationTests18 as NullAnnotationTests21

* Implement support for code completion inside embedded expression of (only) string templates (not text block templates) (#1712)

* Implement support for code completion inside embedded expression of
(only) string templates (not text block templates)

* Fixes #1711

* Fixes #1641 (#1713)

* Add new testcase #1701 (#1705)

* Content assist does not propose overrides in records (#1718)

* Fixes #1095

* JavaModelManager: lazy initialize TouchJob #1720

#1720

* Run the JavaCoreStandaloneTest in the build

#1720

* Bogus error about return expression involving pattern matching (#1731)

Fixes #1726

* Compiler fails to recognize an exhaustive switch (#1733)

*  Fixes #1725

* [21] Processed string templates falsely contain backslash characters (#1730)

#1719

* 1641_enum_further_fixes (#1739)

* Fix one too many pops arising from string concat invoke dynamic (#1740)

* Fix one too many pops arising from string concat invoke dynamic

* Fixes #1394

* Wrong placement of exception range closure results in AIOOB (#1744)

Fixes #1686

* Improper warning - Potential null pointer access (#1469)

Fixes #1461
Sets the flow info reach mode to FlowInfo.UNREACHABLE_BY_NULLANALYSIS
after 'Object o = null;if (Objects.isNull(o)) return;', 'Object o = "";if (Objects.nonNull(o)) return;

Signed-off-by: Snjezana Peco <snjezana.peco@redhat.com>

* Touch bundles affected by the changed ecj version

See #1394
See eclipse-platform/eclipse.platform.releng.aggregator#1659

* Upload eventfile and unit test results

* 2023-06->2023-09 Seems to have broke dependency graph management in our project (#1698)

* Add test for reproducing #1654
* Fix to make that test pass

---------

Co-authored-by: Stephan Herrmann <stephan.herrmann@berlin.de>

* [memory] SoftReference for ResourceCompilationUnit.contents #1743

Ability to reduce memory during searches that find many files

#1743

* deduplicate "eclipse" #1743

CharDeduplication was not designed to deduplicate tokens with length 7+
which could lead to high memory consumption. With this change tokens of
all sizes can be deduplicated.

#1743

A benchmark implemented in CharDeduplicationTest.main(String[]) shows
the new deduplication is performed at similar speed (.21s instead of
.16s) but deduplicates much more tokens (99% instead of 36%).

* 1703.constant definitions (#1756)

* Fixes [21] AIOOB at switchStatement TNode.addPattern  (#1757)

org.eclipse.jdt.internal.compiler.ast.SwitchStatement $TNode.addPattern

---------

Signed-off-by: Snjezana Peco <snjezana.peco@redhat.com>
Co-authored-by: Jörg Kubitz <jkubitz-eclipse@gmx.de>
Co-authored-by: Eric Milles <eric.milles@thomsonreuters.com>
Co-authored-by: Александър Куртаков <akurtakov@gmail.com>
Co-authored-by: Jay Arthanareeswaran <jarthana@in.ibm.com>
Co-authored-by: Stephan Herrmann <stephan.herrmann@berlin.de>
Co-authored-by: Lars Vogel <Lars.Vogel@vogella.com>
Co-authored-by: Suby S Surendran <suby.surendran@ibm.com>
Co-authored-by: Hannes Wellmann <wellmann.hannes1@gmx.net>
Co-authored-by: Andrey Loskutov <loskutov@gmx.de>
Co-authored-by: Gayan Perera <gayanper@gmail.com>
Co-authored-by: Jörg Kubitz <51790620+jukzi@users.noreply.github.com>
Co-authored-by: Srikanth Sankaran <131454720+srikanth-sankaran@users.noreply.github.com>
Co-authored-by: Ed Merks <ed.merks@gmail.com>
Co-authored-by: Snjeza <snjezana.peco@redhat.com>
Co-authored-by: Christoph Läubrich <laeubi@laeubi-soft.de>
Co-authored-by: Michael Haubenwallner <michael.haubenwallner@ssi-schaefer.com>
rgrunber pushed a commit to eclipse-jdtls/eclipse-jdt-core-incubator that referenced this issue Jan 9, 2024
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
4 participants