021c2f3712
This patch for #15877 uses Antlr's input lookahead (`_input.LA(1) != '.'`) to solve the conflict between the LIT_FLOAT and the range syntax. Note that in order to execute the grammar tests, #20245 should land first. |
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| .. | ||
| .gitignore | ||
| check.sh | ||
| raw-string-literal-ambiguity.md | ||
| README.md | ||
| RustLexer.g4 | ||
| verify.rs | ||
Reference grammar.
Uses antlr4 and a custom Rust tool to compare
ASTs/token streams generated. You can use the check-syntax 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 || 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.