iota_adapter_latest/
error.rs

1// Copyright (c) Mysten Labs, Inc.
2// Modifications Copyright (c) 2024 IOTA Stiftung
3// SPDX-License-Identifier: Apache-2.0
4
5use iota_types::{
6    error::{ExecutionError, IotaError},
7    execution_status::{ExecutionFailureStatus, MoveLocation, MoveLocationOpt},
8};
9use move_binary_format::{
10    errors::{Location, VMError},
11    file_format::FunctionDefinitionIndex,
12};
13use move_core_types::{
14    resolver::MoveResolver,
15    vm_status::{StatusCode, StatusType},
16};
17use move_vm_runtime::move_vm::MoveVM;
18
19pub(crate) fn convert_vm_error<S: MoveResolver<Err = IotaError>>(
20    error: VMError,
21    vm: &MoveVM,
22    state_view: &S,
23) -> ExecutionError {
24    let kind = match (error.major_status(), error.sub_status(), error.location()) {
25        (StatusCode::EXECUTED, _, _) => {
26            // If we have an error the status probably shouldn't ever be Executed
27            debug_assert!(false, "VmError shouldn't ever report successful execution");
28            ExecutionFailureStatus::VMInvariantViolation
29        }
30        (StatusCode::ABORTED, None, _) => {
31            debug_assert!(false, "No abort code");
32            // this is a Move VM invariant violation, the code should always be there
33            ExecutionFailureStatus::VMInvariantViolation
34        }
35        (StatusCode::ABORTED, Some(code), Location::Module(id)) => {
36            let abort_location_id = state_view.relocate(id).unwrap_or_else(|_| id.clone());
37            let offset = error.offsets().first().copied().map(|(f, i)| (f.0, i));
38            debug_assert!(offset.is_some(), "Move should set the location on aborts");
39            let (function, instruction) = offset.unwrap_or((0, 0));
40            let function_name = vm.load_module(id, state_view).ok().map(|module| {
41                let fdef = module.function_def_at(FunctionDefinitionIndex(function));
42                let fhandle = module.function_handle_at(fdef.function);
43                module.identifier_at(fhandle.name).to_string()
44            });
45            ExecutionFailureStatus::MoveAbort(
46                MoveLocation {
47                    module: abort_location_id,
48                    function,
49                    instruction,
50                    function_name,
51                },
52                code,
53            )
54        }
55        (StatusCode::OUT_OF_GAS, _, _) => ExecutionFailureStatus::InsufficientGas,
56        (_, _, location) => match error.major_status().status_type() {
57            StatusType::Execution => {
58                debug_assert!(error.major_status() != StatusCode::ABORTED);
59                let location = match location {
60                    Location::Module(id) => {
61                        let offset = error.offsets().first().copied().map(|(f, i)| (f.0, i));
62                        debug_assert!(
63                            offset.is_some(),
64                            "Move should set the location on all execution errors. Error {error}"
65                        );
66                        let (function, instruction) = offset.unwrap_or((0, 0));
67                        let function_name = vm.load_module(id, state_view).ok().map(|module| {
68                            let fdef = module.function_def_at(FunctionDefinitionIndex(function));
69                            let fhandle = module.function_handle_at(fdef.function);
70                            module.identifier_at(fhandle.name).to_string()
71                        });
72                        Some(MoveLocation {
73                            module: id.clone(),
74                            function,
75                            instruction,
76                            function_name,
77                        })
78                    }
79                    _ => None,
80                };
81                ExecutionFailureStatus::MovePrimitiveRuntimeError(MoveLocationOpt(location))
82            }
83            StatusType::Validation
84            | StatusType::Verification
85            | StatusType::Deserialization
86            | StatusType::Unknown => ExecutionFailureStatus::VMVerificationOrDeserializationError,
87            StatusType::InvariantViolation => ExecutionFailureStatus::VMInvariantViolation,
88        },
89    };
90    ExecutionError::new_with_source(kind, error)
91}
iota_adapter_latest/error.rs

iota_adapter_latest/
error.rs
