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62 lines
1.7 KiB
Rust
62 lines
1.7 KiB
Rust
/*
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* Copyright 2020 Fluence Labs Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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use super::custom::ITCustomSection;
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use super::errors::ITParserError;
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use crate::ParserResult;
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use walrus::ModuleConfig;
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use wasmer_it::{
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ast::Interfaces,
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decoders::wat::{parse, Buffer},
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};
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use wasmer_it::ToBytes;
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use std::path::Path;
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/// Embed provided IT to a Wasm file by path.
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pub fn embed_text_it<I, O>(in_wasm_path: I, out_wasm_path: O, it: &str) -> ParserResult<()>
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where
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I: AsRef<Path>,
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O: AsRef<Path>,
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{
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let module = ModuleConfig::new()
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.parse_file(in_wasm_path)
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.map_err(ITParserError::CorruptedWasmFile)?;
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let buffer = Buffer::new(it)?;
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let ast = parse(&buffer)?;
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let mut module = embed_it(module, &ast);
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module
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.emit_wasm_file(out_wasm_path)
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.map_err(ITParserError::WasmEmitError)?;
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Ok(())
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}
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/// Embed provided IT to a Wasm module.
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pub fn embed_it(mut wasm_module: walrus::Module, interfaces: &Interfaces<'_>) -> walrus::Module {
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let mut bytes = vec![];
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// TODO: think about possible errors here
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interfaces.to_bytes(&mut bytes).unwrap();
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let custom = ITCustomSection(bytes);
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wasm_module.customs.add(custom);
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wasm_module
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}
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