uce/scripts/wasm/build_w2_units.sh
2026-06-13 02:07:38 +00:00

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#!/bin/bash
# Batch-build W2 wasm side modules for already-known/generated UCE units.
set -euo pipefail
cd "$(dirname "$0")/../.."
BIN_DIR=${UCE_BIN_DIRECTORY:-/tmp/uce/work}
KNOWN_FILE=${UCE_KNOWN_UNITS_FILE:-$BIN_DIR/known-uce-files.txt}
MIN_UNITS=${UCE_W2_MIN_UNITS:-1}
if [ "$#" -gt 0 ]; then
UNITS=("$@")
else
if [ ! -f "$KNOWN_FILE" ]; then
echo "known unit registry not found: $KNOWN_FILE" >&2
exit 1
fi
mapfile -t UNITS < <(grep -v '^[[:space:]]*$' "$KNOWN_FILE")
fi
count=0
checked=0
skipped=0
# Native-only units that cannot be wasm side modules (yet).
# - error-reporting.uce deliberately throws to exercise the native exception
# path; the wasm backend replaces that machinery with traps (§11.1).
# - tests/zip.uce uses try/catch around the zip library, which is carved out
# of the wasm core until it moves behind a hostcall (W4+ membrane work).
SKIP_PATTERN=${UCE_W2_SKIP:-(error-reporting|tests/zip)\.uce$}
for unit in "${UNITS[@]}"; do
case "$unit" in
*.uce|*.ws.uce) ;;
*) continue ;;
esac
if [[ "$unit" =~ $SKIP_PATTERN ]]; then
continue
fi
src_dir=$(dirname "$unit")
base=$(basename "$unit")
dest_dir="$BIN_DIR$src_dir"
pp_fn="$base.cpp"
wasm_fn="$base.wasm"
if [ ! -f "$dest_dir/$pp_fn" ]; then
echo "missing preprocessed unit: $dest_dir/$pp_fn" >&2
exit 1
fi
if [ -s "$dest_dir/$wasm_fn" ] && [ "$dest_dir/$wasm_fn" -nt "$dest_dir/$pp_fn" ] && [ "$dest_dir/$wasm_fn" -nt "$unit" ]; then
scripts/wasm/check_unit_wasm.py "$dest_dir/$wasm_fn"
skipped=$((skipped + 1))
else
scripts/compile_wasm_unit "$src_dir" "$dest_dir" "$unit" "$pp_fn" "$wasm_fn"
count=$((count + 1))
fi
checked=$((checked + 1))
done
if [ "$checked" -lt "$MIN_UNITS" ]; then
echo "checked only $checked wasm units, expected at least $MIN_UNITS" >&2
exit 1
fi
echo "W2 batch wasm units: checked=$checked compiled=$count reused=$skipped"