73cda83548
This commit adds lots of plumbing to get the type section from the module linking proposal plumbed all the way through to the `wasmtime` crate and the `wasmtime-c-api` crate. This isn't all that useful right now because Wasmtime doesn't support imported/exported modules/instances, but this is all necessary groundwork to getting that exported at some point. I've added some light tests but I suspect the bulk of the testing will come in a future commit. One major change in this commit is that `SignatureIndex` no longer follows type type index space in a wasm module. Instead a new `TypeIndex` type is used to track that. Function signatures, still indexed by `SignatureIndex`, are then packed together tightly.
55 lines
1.3 KiB
Rust
55 lines
1.3 KiB
Rust
use anyhow::Result;
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use wasmtime::*;
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fn engine() -> Engine {
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let mut config = Config::new();
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config.wasm_module_linking(true);
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Engine::new(&config)
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}
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#[test]
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fn compile() -> Result<()> {
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let engine = engine();
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Module::new(&engine, "(module (module))")?;
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Module::new(&engine, "(module (module) (module))")?;
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Module::new(&engine, "(module (module (module)))")?;
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Module::new(
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&engine,
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"
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(module
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(func)
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(module (func))
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(module (func))
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)
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",
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)?;
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let m = Module::new(
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&engine,
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"
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(module
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(global i32 (i32.const 0))
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(func)
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(module (memory 1) (func))
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(module (memory 2) (func))
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(module (table 2 funcref) (func))
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(module (global i64 (i64.const 0)) (func))
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)
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",
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)?;
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assert_eq!(m.imports().len(), 0);
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assert_eq!(m.exports().len(), 0);
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let bytes = m.serialize()?;
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Module::deserialize(&engine, &bytes)?;
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assert_eq!(m.imports().len(), 0);
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assert_eq!(m.exports().len(), 0);
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Ok(())
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}
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#[test]
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fn types() -> Result<()> {
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let engine = engine();
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Module::new(&engine, "(module (type (module)))")?;
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Module::new(&engine, "(module (type (instance)))")?;
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Ok(())
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}
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