37 lines
1.4 KiB
Rust
37 lines
1.4 KiB
Rust
pub mod old;
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pub use wasi_common::virtfs;
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pub use wasi_common::{WasiCtx, WasiCtxBuilder};
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// Defines a `struct Wasi` with member fields and appropriate APIs for dealing
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// with all the various WASI exports.
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wasmtime_wiggle::wasmtime_integration!({
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// The wiggle code to integrate with lives here:
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target: wasi_common::wasi,
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// This must be the same witx document as used above. This should be ensured by
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// the `WASI_ROOT` env variable, which is set in wasi-common's `build.rs`.
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witx: ["$WASI_ROOT/phases/snapshot/witx/wasi_snapshot_preview1.witx"],
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// This must be the same ctx type as used for the target:
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ctx: WasiCtx,
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// This macro will emit a struct to represent the instance,
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// with this name and docs:
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modules: { wasi_snapshot_preview1 =>
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{ name: Wasi,
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docs: "An instantiated instance of the wasi exports.
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This represents a wasi module which can be used to instantiate other wasm
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modules. This structure exports all that various fields of the wasi instance
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as fields which can be used to implement your own instantiation logic, if
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necessary. Additionally [`Wasi::get_export`] can be used to do name-based
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resolution.",
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}
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},
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});
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pub fn is_wasi_module(name: &str) -> bool {
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// FIXME: this should be more conservative, but while WASI is in flux and
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// we're figuring out how to support multiple revisions, this should do the
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// trick.
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name.starts_with("wasi")
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}
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