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use crate::{error_hook, VmApiImpl};
use alloc::vec::Vec;
use elrond_wasm::{
api::{EndpointArgumentApi, EndpointArgumentApiImpl, Handle},
err_msg,
types::BoxedBytes,
};
extern "C" {
fn getNumArguments() -> i32;
fn getArgumentLength(id: i32) -> i32;
fn getArgument(id: i32, dstOffset: *mut u8) -> i32;
fn bigIntNew(value: i64) -> i32;
fn bigIntGetUnsignedArgument(arg_id: i32, dest: i32);
fn bigIntGetSignedArgument(arg_id: i32, dest: i32);
fn smallIntGetUnsignedArgument(id: i32) -> i64;
fn smallIntGetSignedArgument(id: i32) -> i64;
fn mBufferNew() -> i32;
fn mBufferGetArgument(argId: i32, mBufferHandle: i32) -> i32;
}
impl EndpointArgumentApi for VmApiImpl {
type EndpointArgumentApiImpl = VmApiImpl;
#[inline]
fn argument_api_impl() -> Self::EndpointArgumentApiImpl {
VmApiImpl {}
}
}
impl EndpointArgumentApiImpl for VmApiImpl {
#[inline]
fn get_num_arguments(&self) -> i32 {
unsafe { getNumArguments() }
}
#[inline]
fn get_argument_len(&self, arg_index: i32) -> usize {
unsafe { getArgumentLength(arg_index) as usize }
}
fn copy_argument_to_slice(&self, arg_index: i32, slice: &mut [u8]) {
unsafe {
let byte_len = getArgument(arg_index, slice.as_mut_ptr()) as usize;
if byte_len != slice.len() {
error_hook::signal_error(err_msg::ARG_BAD_LENGTH);
}
}
}
fn get_argument_vec_u8(&self, arg_index: i32) -> Vec<u8> {
let len = self.get_argument_len(arg_index);
let mut res = Vec::with_capacity(len);
if len > 0 {
unsafe {
res.set_len(len);
getArgument(arg_index, res.as_mut_ptr());
}
}
res
}
fn get_argument_boxed_bytes(&self, arg_index: i32) -> BoxedBytes {
let len = self.get_argument_len(arg_index);
unsafe {
let mut res = BoxedBytes::allocate(len);
if len > 0 {
getArgument(arg_index, res.as_mut_ptr());
}
res
}
}
#[inline]
fn get_argument_big_uint_raw(&self, arg_id: i32) -> i32 {
unsafe {
let handle = bigIntNew(0);
bigIntGetUnsignedArgument(arg_id, handle);
handle
}
}
#[inline]
fn get_argument_big_int_raw(&self, arg_id: i32) -> i32 {
unsafe {
let handle = bigIntNew(0);
bigIntGetSignedArgument(arg_id, handle);
handle
}
}
#[inline]
fn get_argument_managed_buffer_raw(&self, arg_id: i32) -> Handle {
unsafe {
let handle = mBufferNew();
mBufferGetArgument(arg_id, handle);
handle
}
}
#[inline]
fn get_argument_u64(&self, arg_id: i32) -> u64 {
unsafe { smallIntGetUnsignedArgument(arg_id) as u64 }
}
#[inline]
fn get_argument_i64(&self, arg_id: i32) -> i64 {
unsafe { smallIntGetSignedArgument(arg_id) }
}
}