wehub-resource-sync
58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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"""Decorate emcc generated js to a WASI compatible API."""
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import sys
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template_head = """
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function EmccWASI() {
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var asyncifyStubs = {};
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"""
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template_tail = """
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this.Module = Module;
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this.start = Module.wasmLibraryProvider.start;
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this.imports = Module.wasmLibraryProvider.imports;
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this.wasiImport = this.imports["wasi_snapshot_preview1"];
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}
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"""
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template_es_tail = """
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export default EmccWASI;
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"""
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template_cjs_tail = """
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if (typeof module !== "undefined" && module.exports) {
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module.exports = EmccWASI;
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}
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"""
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def generate_tail(mode):
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if mode == "es":
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return template_tail + template_es_tail
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return template_tail + template_cjs_tail
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if __name__ == "__main__":
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if len(sys.argv) != 4:
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print("Usage <file-in> <file-out> <mode>")
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result = template_head + open(sys.argv[1]).read() + generate_tail(sys.argv[3])
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with open(sys.argv[2], "w") as fo:
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fo.write(result)
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