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CDT parser OutOfMemoryError [message #1817794]

Fri, 29 November 2019 09:35

Federer Roger

Messages: 30
Registered: December 2017

Member

FileContent fileContent = FileContent.createForExternalFileLocation(fileLocation);
            IScannerInfo scannerInfo = new ScannerInfo();
            IncludeFileContentProvider readerFactory = IncludeFileContentProvider.getEmptyFilesProvider();
            IASTTranslationUnit tu = GPPLanguage.getDefault().getASTTranslationUnit(fileContent, scannerInfo,
                readerFactory, null, ILanguage.OPTION_PARSE_INACTIVE_CODE, new DefaultLogService());
            System.out.println(tu.getRawSignature());

There is a java.lang.OutOfMemoryError when I use the code to parse a single file. Is it a bug or not?

Attachment: main.cpp
(Size: 12.31KB, Downloaded 59 times)
Attachment: parser_error.png
(Size: 104.37KB, Downloaded 132 times)

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Re: CDT parser OutOfMemoryError [message #1817814 is a reply to message #1817794]

Fri, 29 November 2019 14:24

David Vavra

Messages: 1426
Registered: October 2012

Senior Member

Don't know if it's a bug or not.
The file is rather complicated.
Try inserting the code in pieces until you encounter the problem.

I tried doing so and got to line 195 but it failed after that.
After the problem occurred, I had to delete the .cproject, .project files and .settings dir.
It was a nuisance recreating them.

Start a new project without the main.cpp file.
save the project files.
Add pieces from main.cpp until the error occurs.
There may be something obvious that you can fix.

You can also increase JVM heap and see if that helps.
https://wiki.eclipse.org/FAQ_How_do_I_increase_the_heap_size_available_to_Eclipse%3F

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