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Swift: skip MacroExpansionExpr/MacroExpansionDecl

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They only appear in an intermediate AST and disappear as soon as the
macro is expanded.
The only way to get these in is to construct an "incorrect" AST, e.g.:

```
let x = #does_not_exist() // MacroExpansionExpr
struct S {
  #does_not_exist() // MacroExpansionDecl
}
```
This commit is contained in:
Alex Denisov
2023-11-15 13:35:15 +01:00
parent 8b126fe51a
commit 423c85377b
1 changed files with 3 additions and 5 deletions
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8
swift/extractor/infra/SwiftTagTraits.h
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@@ -196,7 +196,7 @@ MAP(swift::Expr, ExprTag)
MAP(swift::OneWayExpr, OneWayExprTag)
MAP(swift::TapExpr, TapExprTag)
MAP(swift::TypeJoinExpr, void) // TODO (introduced in 5.8)
MAP(swift::MacroExpansionExpr, void) // TODO (introduced in 5.8)
MAP(swift::MacroExpansionExpr, void) // unexpanded macro in an expr context, skipping
MAP(swift::CopyExpr, CopyExprTag)
MAP(swift::ConsumeExpr, ConsumeExprTag)
MAP(swift::MaterializePackExpr, void) // TODO (introduced in 5.9)
@@ -243,10 +243,8 @@ MAP(swift::Decl, DeclTag)
MAP(swift::InfixOperatorDecl, InfixOperatorDeclTag)
MAP(swift::PrefixOperatorDecl, PrefixOperatorDeclTag)
MAP(swift::PostfixOperatorDecl, PostfixOperatorDeclTag)
MAP(swift::MacroExpansionDecl, void) // TODO (introduced in 5.8)
#if CODEQL_SWIFT_VERSION_GE(5, 9)
MAP(swift::MissingDecl, void) // TODO (introduced in 5.9)
#endif
MAP(swift::MacroExpansionDecl, void) // unexpanded macro in a decl context, skipping
MAP(swift::MissingDecl, void) // appears around an unexpanded macro, skipping
MAP(swift::Pattern, PatternTag)
MAP(swift::ParenPattern, ParenPatternTag)