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#!/bin/bash
#
# Copyright 2018 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Stop on failure.
set -e
export ASM_JAR="${ANDROID_BUILD_TOP}/prebuilts/misc/common/asm/asm-6.0.jar"
export ORIGINAL_JAVAC="$JAVAC"
# Wrapper function for javac which invokes the compiler and applies
# transforms to class files after compilation.
function javac_wrapper {
set -e # Stop on error - the caller script may not have this set.
# Update arguments to add transformer and ASM to the compiler classpath.
local args=()
local classpath="./transformer.jar:$ASM_JAR"
while [ $# -ne 0 ] ; do
case $1 in
-cp|-classpath|--class-path)
shift
shift
args+=(-cp $classpath)
;;
*)
args+=("$1")
shift
;;
esac
done
# Compile.
$ORIGINAL_JAVAC "${args[@]}"
# Move original classes to intermediate location.
mv classes intermediate-classes
mkdir classes
# Transform intermediate classes.
local transformer_args="-cp ${ASM_JAR}:transformer.jar transformer.IndyTransformer"
for class in intermediate-classes/*.class ; do
local transformed_class=classes/$(basename ${class})
${JAVA:-java} ${transformer_args} $PWD/${class} ${transformed_class}
done
}
export -f javac_wrapper
export JAVAC=javac_wrapper
######################################################################
# Build the transformer to apply to compiled classes.
mkdir classes
${ORIGINAL_JAVAC:-javac} ${JAVAC_ARGS} -cp "${ASM_JAR}" -d classes $(find util-src -name '*.java')
jar -cf transformer.jar -C classes transformer/ -C classes annotations/
rm -rf classes
# Use API level 28 for invoke-custom bytecode support.
DESUGAR=false ./default-build "$@" --api-level 28
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