Initial commit of C API library

lib/runtime-c-api/src/lib.rs

@@ -0,0 +1,50 @@
+extern crate wasmer_runtime;
+
+use std::os::raw::c_char;
+
+use wasmer_runtime::ImportObject;
+
+#[allow(non_camel_case_types)]
+#[no_mangle]
+pub enum wasmer_import_object_t {}
+
+#[allow(non_camel_case_types)]
+#[no_mangle]
+pub enum wasmer_instance_t {}
+
+#[allow(non_camel_case_types)]
+#[no_mangle]
+#[repr(C)]
+pub enum wasmer_compile_result_t {
+    WASMER_COMPILE_OK = 1,
+    WASMER_COMPILE_ERROR = 2,
+}
+
+#[no_mangle]
+pub extern "C" fn wasmer_import_object_new() -> *mut wasmer_import_object_t {
+    Box::into_raw(Box::new(ImportObject::new())) as *mut wasmer_import_object_t
+}
+
+#[no_mangle]
+pub extern "C" fn wasmer_import_object_destroy(import_object: *mut wasmer_import_object_t) {
+    if !import_object.is_null() {
+        drop(unsafe { Box::from_raw(import_object as *mut ImportObject) });
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn wasmer_instantiate(
+    mut instance: *mut wasmer_instance_t,
+    bytes: *const c_char,
+    import_object: *mut wasmer_import_object_t,
+) -> wasmer_compile_result_t {
+    let import_object = unsafe { Box::from_raw(import_object as *mut ImportObject) };
+    let bytes = &[];
+    let result = wasmer_runtime::instantiate(bytes, *import_object);
+    let new_instance = match result {
+        Ok(instance) => instance,
+        Err(error) => return wasmer_compile_result_t::WASMER_COMPILE_ERROR,
+    };
+    instance = Box::into_raw(Box::new(new_instance)) as *mut wasmer_instance_t;
+    wasmer_compile_result_t::WASMER_COMPILE_OK
+}