#!/bin/sh

# Run the reference lexer against libsyntax and compare the tokens and spans.
# If "// ignore-lexer-test" is present in the file, it will be ignored.
#
# Argument $1 is the file to check, $2 is the classpath to use, $3 is the path
# to the grun binary, $4 is the path to the verify binary, $5 is the path to
# RustLexer.tokens

if [ "${VERBOSE}" == "1" ]; then
    set -x
fi

grep -q "// ignore lexer-test" $1;

if [ $? -eq 1 ]; then
    cd $2 # This `cd` is so java will pick up RustLexer.class. I couldn't
    # figure out how to wrangle the CLASSPATH, just adding build/grammr didn't
    # seem to have anny effect.
    $3 RustLexer tokens -tokens < $1 | $4 $1 $5
fi