docs: Enforce at least one statement in blocks #20
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Outdated suggestions cannot be applied.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.
Update grammar to enforce at least one statement in blocks. This means
each function declaration, if statement, while statement etc. need to
have at least one statement in the inner block. Like in Go's "variable
declared but not used" error message we want to catch accidental
omissions and limit the set of "valid programs" to provide more guide
rails.
The parser will be updated in a follow up PR.
While at it, reorder the production rules in the grammar to flow more
naturally from higher order constructs, to single line statements,
expressions and TERMINALS.