[5.9][Macros] Copy MacroSystem and related code to SwiftSyntaxMacroExpansion #1868
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Cherry-pick #1858 into
release/5.9
MacroSystem
(i.e.SyntaxProtocol.expand(macros:in:)
) is a syntactic macro expansion utility for testing macros (i.e.assertMacroExpansion()
) It should be moved toSwiftSyntaxMacroExpansion
module because it's a expansion utility, and should share the same code with other expansion functions including the actual compiler expansion. To help migration fromSwiftSyntaxMacros
toSwiftSyntaxMacroExpansion
, just copy it and deprecate the old one inSwiftSyntaxMacros