4.10 Major feature, code clean up, and bug fix release
ANTLR version 4.10
This is a very major release with a number of important changes. There have been many valuable contributions, but I welcome @KvanTTT and @jcking as recent "official" major ANTLR contributors. :)
WARNING: Generated 4.10 lexers and parsers are incompatible with code generated by previous versions of ANTLR. You must regenerate all of your code from grammars to use the new runtime. This is true of all targets (except probably javascript).
Repo branching structure
We have changed the branching structure of the repository. The default branch for this repo remains master and it is the latest stable release with tags for the various releases; e.g., see release tag 4.9.3. We now do development work in branch dev between releases and all pull requests should be derived from that branch. The dev branch is merged back into master to cut a release and the release state is tagged (e.g., with 4.10-rc.1 or 4.10.) Visually our process looks roughly like this:
Targets such as Go that pull directly from the repository can use the default master branch but can also pull from the active dev branch:
$ go get github.com/antlr/antlr4/runtime/Go/antlr@dev
Each commit in pull requests must have a "signature", which is simple as using -s (not -S) on the git commit command:
$ git commit -s -m 'This is my commit message'
Github's pull request process enforces the sig and gives instructions on how to fix any commits that lack the sig. See https://github.com/apps/dco for more info.
4.10-generated parsers incompatible with previous runtimes
ANTLR not only generates recursive-descent parsers; it generates a state machine called an augmented transition network (ATN) in serialized form as a bunch of integers stored in the generated parser and lexer files. This serialization format was changed for 4.10 to remove a size limit on the supported ATNs. See antlr/antlr4#3591.
The key point here is that we changed the version number stored inside the serialization format and so, in order to use this new version of ANTLR, you must regenerate all of your lexers and parsers using the 4.10 tool and then use the new runtime. Parsers generated with 4.10 or not compatible with previous versions of the runtime.
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Bumps antlr4-runtime from 4.8-1 to 4.10.1.
Release notes
Sourced from antlr4-runtime's releases.
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Commits
Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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.Dependabot commands and options
You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)