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47 lines
1.5 KiB
47 lines
1.5 KiB
use cranelift_codegen::settings;
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use cranelift_codegen::settings::Configurable;
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use std::cell::RefCell;
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use std::collections::HashMap;
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use std::fs::File;
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use std::io;
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use std::io::Read;
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use std::path::PathBuf;
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use std::rc::Rc;
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use wabt;
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use wasmtime_jit::{instantiate, Compiler, NullResolver};
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#[cfg(test)]
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const PATH_MODULE_RS2WASM_ADD_FUNC: &str = r"filetests/rs2wasm-add-func.wat";
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#[cfg(test)]
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fn read_to_end(path: PathBuf) -> Result<Vec<u8>, io::Error> {
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let mut buf: Vec<u8> = Vec::new();
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let mut file = File::open(path)?;
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file.read_to_end(&mut buf)?;
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Ok(buf)
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}
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/// Simple test reading a wasm-file and translating to binary representation.
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#[test]
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fn test_environ_translate() {
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let path = PathBuf::from(PATH_MODULE_RS2WASM_ADD_FUNC);
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let wat_data = read_to_end(path).unwrap();
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assert!(wat_data.len() > 0);
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let data = wabt::wat2wasm(wat_data).expect("expecting valid wat-file");
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assert!(data.len() > 0);
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let mut flag_builder = settings::builder();
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flag_builder.enable("enable_verifier").unwrap();
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let isa_builder = cranelift_native::builder().unwrap_or_else(|_| {
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panic!("host machine is not a supported target");
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});
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let isa = isa_builder.finish(settings::Flags::new(flag_builder));
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let mut resolver = NullResolver {};
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let mut compiler = Compiler::new(isa);
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let global_exports = Rc::new(RefCell::new(HashMap::new()));
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let instance = instantiate(&mut compiler, &data, &mut resolver, global_exports, false);
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assert!(instance.is_ok());
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}
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