Simplify AST for string literals to not depend on implicit tuple splat. #3801
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
String literal expressions, as well as the magic literals #file and tuple value that is then fed into one or two call expressions. For string literals, that tuple value was implicitly splatted, breaking AST invariants. Instead, keep string literals and these magic literals that produce a string as a single expression node, but store the declarations that will be used to transform the raw literal into the complete literal. SILGen will form the appropriate calls. This representation is far simpler---the AST no longer has a bunch of implicit nodes---and doesn't break AST invariants.
|
@swift-ci please smoke test and merge |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
What's in this pull request?
Resolved bug number: (SR-)
Before merging this pull request to apple/swift repository:
Triggering Swift CI
The swift-ci is triggered by writing a comment on this PR addressed to the GitHub user @swift-ci. Different tests will run depending on the specific comment that you use. The currently available comments are:
Smoke Testing
A smoke test on macOS does the following:
device standard libraries are not built.
version of these tests are not run.
A smoke test on Linux does the following:
tests are not run.
Validation Testing
Lint Testing
Note: Only members of the Apple organization can trigger swift-ci.
String literal expressions, as well as the magic literals #file and
tuple value that is then fed into one or two call expressions. For
string literals, that tuple value was implicitly splatted, breaking
AST invariants.
Instead, keep string literals and these magic literals that produce a
string as a single expression node, but store the declarations that
will be used to transform the raw literal into the complete
literal. SILGen will form the appropriate calls. This representation
is far simpler---the AST no longer has a bunch of implicit nodes---and
doesn't break AST invariants.