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| author | Zachary Yedidia | 2022-08-26 07:52:04 -0700 |
|---|---|---|
| committer | GitHub | 2022-08-26 14:52:04 +0000 |
| commit | 19fe90bb0fd37457c47f3873392db5cbb9b87d38 (patch) | |
| tree | 8d81c6b3d0ddf3b050a021300033d40f377acab7 /src/main/antlr4 | |
| parent | a6851b8ec4044eef4af759a21887fdae6226e1cd (diff) | |
FIRRTL version support (#2543)
* Parse version and hardcode emitted version
* Throw error if version is too high
* Parse version even if rest is invalid
* Change pattern match to if statement
* Improve version grammar
* Update tests
* Remove outdated comment
* Simplify grammar and use version class
* Simplify and add no version test
* Fix for conflicting lexer rule
Diffstat (limited to 'src/main/antlr4')
| -rw-r--r-- | src/main/antlr4/FIRRTL.g4 | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/main/antlr4/FIRRTL.g4 b/src/main/antlr4/FIRRTL.g4 index d40c6560..10a87c9e 100644 --- a/src/main/antlr4/FIRRTL.g4 +++ b/src/main/antlr4/FIRRTL.g4 @@ -29,7 +29,16 @@ import firrtl.LexerHelper; // Does there have to be at least one module? circuit - : 'circuit' id ':' info? INDENT module* DEDENT EOF + : version? NEWLINE* 'circuit' id ':' info? INDENT module* DEDENT EOF + ; + +version + : 'FIRRTL' 'version' semver NEWLINE + ; + +// Due to lexer problems, something like 1.1.0 is lexed as DoubleLit '.' UnsignedInt +semver + : DoubleLit '.' UnsignedInt ; module |