77e17d8f71
* Add a wasmtime-specific `wasmtime_wat2wasm` C API This commit implements a wasmtime-specific C API for converting the text format to the binary format. An upstream spec issue exists for adding this to the C API, but in the meantime we can experiment with our own version of this API and use it in the C# extension, for example! Closes #1000 * Reorder arguments * Use wasm_byte_vec_t for input `*.wat` * Mark wat input as const * Return an error message and use `fixed` * Actually include the error message * Use `fixed` in `Module.cs` as well
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
// WebAssembly C API extension for Wasmtime
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#ifndef WASMTIME_API_H
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#define WASMTIME_API_H
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#include <wasm.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef uint8_t wasmtime_strategy_t;
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enum wasmtime_strategy_enum { // Strategy
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WASMTIME_STRATEGY_AUTO,
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WASMTIME_STRATEGY_CRANELIFT,
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WASMTIME_STRATEGY_LIGHTBEAM,
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};
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typedef uint8_t wasmtime_opt_level_t;
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enum wasmtime_opt_level_enum { // OptLevel
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WASMTIME_OPT_LEVEL_NONE,
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WASMTIME_OPT_LEVEL_SPEED,
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WASMTIME_OPT_LEVEL_SPEED_AND_SIZE,
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};
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#define WASMTIME_CONFIG_PROP(name, ty) \
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WASM_API_EXTERN void wasmtime_config_##name##_set(wasm_config_t*, ty);
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WASMTIME_CONFIG_PROP(debug_info, bool)
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WASMTIME_CONFIG_PROP(wasm_threads, bool)
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WASMTIME_CONFIG_PROP(wasm_reference_types, bool)
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WASMTIME_CONFIG_PROP(wasm_simd, bool)
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WASMTIME_CONFIG_PROP(wasm_bulk_memory, bool)
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WASMTIME_CONFIG_PROP(wasm_multi_value, bool)
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WASMTIME_CONFIG_PROP(strategy, wasmtime_strategy_t)
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WASMTIME_CONFIG_PROP(cranelift_debug_verifier, bool)
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WASMTIME_CONFIG_PROP(cranelift_opt_level, wasmtime_opt_level_t)
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///////////////////////////////////////////////////////////////////////////////
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// Converts from the text format of WebAssembly to to the binary format.
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//
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// * `engine` - a previously created engine which will drive allocations and
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// such
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// * `wat` - this it the input buffer with the WebAssembly Text Format inside of
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// it. This will be parsed and converted to the binary format.
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// * `ret` - if the conversion is successful, this byte vector is filled in with
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// the WebAssembly binary format.
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// * `error_message` - if the conversion fails, this is filled in with a
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// descriptive error message of why parsing failed. This parameter is
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// optional.
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//
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// Returns `true` if conversion succeeded, or `false` if it failed.
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bool wasmtime_wat2wasm(
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wasm_engine_t *engine,
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const wasm_byte_vec_t *wat,
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own wasm_byte_vec_t *ret,
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own wasm_byte_vec_t *error_message,
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);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // WASMTIME_API_H
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