multiversx_sc_wasm_adapter/api/
endpoint_arg_api_node.rs

1use crate::api::VmApiImpl;
2use multiversx_sc::api::{EndpointArgumentApi, EndpointArgumentApiImpl};
3
4unsafe extern "C" {
5    fn getNumArguments() -> i32;
6    fn getArgumentLength(id: i32) -> i32;
7
8    // managed buffer API (currently the main one)
9    fn mBufferGetArgument(argId: i32, mBufferHandle: i32) -> i32;
10
11    // big int API
12    fn bigIntGetUnsignedArgument(arg_index: i32, dest: i32);
13    fn bigIntGetSignedArgument(arg_index: i32, dest: i32);
14
15    // small int API
16    fn smallIntGetUnsignedArgument(id: i32) -> i64;
17    fn smallIntGetSignedArgument(id: i32) -> i64;
18
19    // callback closure directly from the VM
20    fn managedGetCallbackClosure(callbackClosureHandle: i32);
21}
22
23impl EndpointArgumentApi for VmApiImpl {
24    type EndpointArgumentApiImpl = VmApiImpl;
25
26    #[inline]
27    fn argument_api_impl() -> Self::EndpointArgumentApiImpl {
28        VmApiImpl {}
29    }
30}
31
32/// Interface to only be used by code generated by the macros.
33/// The smart contract code doesn't have access to these methods directly.
34impl EndpointArgumentApiImpl for VmApiImpl {
35    #[inline]
36    fn get_num_arguments(&self) -> i32 {
37        unsafe { getNumArguments() }
38    }
39
40    #[inline]
41    fn get_argument_len(&self, arg_index: i32) -> usize {
42        unsafe { getArgumentLength(arg_index) as usize }
43    }
44
45    #[inline]
46    fn load_argument_managed_buffer(&self, arg_index: i32, dest: Self::ManagedBufferHandle) {
47        unsafe {
48            mBufferGetArgument(arg_index, dest);
49        }
50    }
51
52    #[inline]
53    fn load_argument_big_int_unsigned(&self, arg_index: i32, dest: Self::ManagedBufferHandle) {
54        unsafe {
55            bigIntGetUnsignedArgument(arg_index, dest);
56        }
57    }
58
59    #[inline]
60    fn load_argument_big_int_signed(&self, arg_index: i32, dest: Self::ManagedBufferHandle) {
61        unsafe {
62            bigIntGetSignedArgument(arg_index, dest);
63        }
64    }
65
66    #[inline]
67    fn get_argument_u64(&self, arg_index: i32) -> u64 {
68        unsafe { smallIntGetUnsignedArgument(arg_index) as u64 }
69    }
70
71    #[inline]
72    fn get_argument_i64(&self, arg_index: i32) -> i64 {
73        unsafe { smallIntGetSignedArgument(arg_index) }
74    }
75
76    #[inline]
77    fn load_callback_closure_buffer(&self, dest: Self::ManagedBufferHandle) {
78        unsafe {
79            managedGetCallbackClosure(dest);
80        }
81    }
82}
multiversx_sc_wasm_adapter/api/endpoint_arg_api_node.rs

multiversx_sc_wasm_adapter/api/
endpoint_arg_api_node.rs
