java.lang.ArrayIndexOutOfBoundsException in CPPFunction.resolveParameter() while index rebuild

[gemtmp]

Describe the bug
Indexer does not work on files with #include <vector> from clang 16 and c++20 code .

To Reproduce
Steps to reproduce the behavior:

1. create C++ project and create cpp file:

struct fn {
  template <class A>
  auto operator()(A) requires (true) {}
};

template<typename a, typename b> struct bb {};

using sentinel_t = decltype(fn{}(1));

using common_range =  bb<int, sentinel_t>;

void someF(int...);
void someF(int...) {}

2. Go to Project ->Index ->Rebuild
3. Indexer fails with exception

Indexer: start PDOMRebuildTask
Indexer: parsing /common/aa.cpp
Indexer: exception: java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 1
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPFunction.resolveParameter(CPPFunction.java:419)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPParameter.resolveFinalBinding(CPPParameter.java:312)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTNameBase.resolveFinalBinding(CPPASTNameBase.java:161)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTNameBase.getBinding(CPPASTNameBase.java:150)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTTranslationUnit$ProblemBindingClearer.visit(CPPASTTranslationUnit.java:235)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTName.accept(CPPASTName.java:158)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTDeclarator.accept(CPPASTDeclarator.java:206)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTParameterDeclaration.accept(CPPASTParameterDeclaration.java:108)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTFunctionDeclarator.postAccept(CPPASTFunctionDeclarator.java:292)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTDeclarator.accept(CPPASTDeclarator.java:220)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTSimpleDeclaration.accept(CPPASTSimpleDeclaration.java:116)
	at org.eclipse.cdt.internal.core.dom.parser.ASTTranslationUnit.accept(ASTTranslationUnit.java:289)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTTranslationUnit.resolveAmbiguities(CPPASTTranslationUnit.java:249)
	at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.resolveAmbiguities(AbstractGNUSourceCodeParser.java:707)
	at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.parse(AbstractGNUSourceCodeParser.java:690)
	at org.eclipse.cdt.core.dom.parser.AbstractCLikeLanguage.getASTTranslationUnit(AbstractCLikeLanguage.java:171)
	at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.createAST(AbstractIndexerTask.java:1244)
	at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.parseFile(AbstractIndexerTask.java:1102)
	at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.parseLinkage(AbstractIndexerTask.java:910)
	at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:572)
	at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164)
	at org.eclipse.cdt.internal.core.pdom.indexer.PDOMRebuildTask.run(PDOMRebuildTask.java:94)
	at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

Expected behavior
Indexer should parse source file.

Version Information (please complete the following information):

• Eclipse Version: 2024-09 (4.33.0)
• C/C++ Development Tools 11.6.1.202407022008