Carol Nichols e70c8584d5 Revert "Panic if the grammar verifier sees a token it doesn't recognize"
This reverts commit 9c7d5ae57c27ebfc019c2c23283bb905d8c3b74f.

This was wrong... the `continue` was to ignore the latter half of the
tokens file. Another mechanism will have to be used to keep the model
grammar's tokens in sync with the actual grammar's tokens :-/
2015-05-17 10:48:42 -04:00
..
2015-04-21 12:02:12 +02:00
2015-04-21 12:02:12 +02:00

Reference grammar.

Uses antlr4 and a custom Rust tool to compare ASTs/token streams generated. You can use the check-lexer make target to run all of the available tests.

To use manually:

antlr4 RustLexer.g4
javac *.java
rustc -O verify.rs
for file in ../*/**.rs; do
    echo $file;
    grun RustLexer tokens -tokens < "$file" | ./verify "$file" RustLexer.tokens || break
done

Note That the ../*/**.rs glob will match every *.rs file in the above directory and all of its recursive children. This is a zsh extension.