#!/bin/sh
#
# Compile the compiler source a couple of times.
#

. $srcdir/defs || exit 1

name="compile.test"

# First, create the compiler source file.

rm -f jsc.js

for i in $jscsources; do
    cat $srcdir/../$i >> jsc.js
done

# Second, compile the source to the stage one compiler.

echo "$name: creating the stage 1 compiler"
$js -Wall -O2 -c jsc.js
mv jsc.jsc stage1.jsc

# Third, compile the stage two compiler with our new compiler.

echo "$name: creating the stage 2 compiler"
$js --load stage1.jsc --file $srcdir/../bs.js jsc.js
mv a.jsc stage2.jsc

# Fourth, compile stage three compiler.

echo "$name: creating the stage 3 compiler"
$js --load stage2.jsc --file $srcdir/../bs.js jsc.js
mv a.jsc stage3.jsc

# Fifth, cleanup.

rm -f a.jas jsc.js stage1.jsc

# Finally, check that stage2.jsc and stage3.jsc do not differ.  If
# they do, the there is something seriously broken.

cmp stage2.jsc stage3.jsc || {
  rm -f stage2.jsc stage3.jsc
  echo "error: the stage 2 and stage 3 compilers differ"
  exit 1
}

# All ok.
rm -f stage2.jsc stage3.jsc