¶llvm::SmallString<32> getIssueHash(
    const clang::FullSourceLoc& IssueLoc,
    llvm::StringRef CheckerName,
    llvm::StringRef WarningMessage,
    const clang::Decl* IssueDecl,
    const clang::LangOptions& LangOpts)

Description

Returns an opaque identifier for a diagnostic. This opaque identifier is intended to be stable even when the source code is changed. It allows to track diagnostics in the long term, for example, find which diagnostics are "new", maintain a database of suppressed diagnostics etc. We may introduce more variants of issue hashes in the future but older variants will still be available for compatibility. This hash is based on the following information: - Name of the checker that emitted the diagnostic. - Warning message. - Name of the enclosing declaration. - Contents of the line of code with the issue, excluding whitespace. - Column number (but not the line number! - which makes it stable).

Declared at: clang/include/clang/Analysis/IssueHash.h:34

Parameters

const clang::FullSourceLoc& IssueLoc

llvm::StringRef CheckerName

llvm::StringRef WarningMessage

const clang::Decl* IssueDecl

const clang::LangOptions& LangOpts