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Improve wasm-c-api instantiation-time linking (#1902)

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Add APIs to help prepare the imports for the wasm-c-api `wasm_instance_new`:
- wasm_importtype_is_linked
- wasm_runtime_is_import_func_linked
- wasm_runtime_is_import_global_linked
- wasm_extern_new_empty

For wasm-c-api, developer may use `wasm_module_imports` to get the import
types info, check whether an import func/global is linked with the above API,
and ignore the linking of an import func/global with `wasm_extern_new_empty`.

Sample `wasm-c-api-import` is added and document is updated.
This commit is contained in:
liang.he
2023-02-13 15:06:04 +08:00
committed by GitHub
parent 427abf02c8
commit 3698f2279b
16 changed files with 1168 additions and 219 deletions
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4
core/iwasm/include/wasm_c_api.h
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@ -354,6 +354,7 @@ WASM_API_EXTERN own wasm_importtype_t* wasm_importtype_new(
WASM_API_EXTERN const wasm_name_t* wasm_importtype_module(const wasm_importtype_t*);
WASM_API_EXTERN const wasm_name_t* wasm_importtype_name(const wasm_importtype_t*);
WASM_API_EXTERN const wasm_externtype_t* wasm_importtype_type(const wasm_importtype_t*);
WASM_API_EXTERN bool wasm_importtype_is_linked(const wasm_importtype_t*);
// Export Types
@ -797,6 +798,9 @@ static inline void* wasm_val_ptr(const wasm_val_t* val) {
#define KILOBYTE(n) ((n) * 1024)
// Create placeholders filled in `wasm_externvec_t* imports` for `wasm_instance_new()`
WASM_API_EXTERN wasm_extern_t *wasm_extern_new_empty(wasm_store_t *, wasm_externkind_t);
///////////////////////////////////////////////////////////////////////////////
#undef own