sui_verifier_latest/
id_leak_verifier.rs

1// Copyright (c) Mysten Labs, Inc.
2// SPDX-License-Identifier: Apache-2.0
3
4//! Objects whose struct type has key ability represent Sui objects.
5//! They have unique IDs that should never be reused. This verifier makes
6//! sure that the id field of Sui objects never get leaked.
7//! Unpack is the only bytecode that could extract the id field out of
8//! a Sui object. From there, we track the flow of the value and make
9//! sure it can never get leaked outside of the function. There are four
10//! ways it can happen:
11//! 1. Returned
12//! 2. Written into a mutable reference
13//! 3. Added to a vector
14//! 4. Passed to a function cal::;
15use move_abstract_stack::AbstractStack;
16use move_binary_format::{
17    errors::PartialVMError,
18    file_format::{
19        Bytecode, CodeOffset, CompiledModule, FunctionDefinitionIndex, FunctionHandle, LocalIndex,
20        StructDefinition, StructFieldInformation,
21    },
22};
23use move_bytecode_verifier::absint::{
24    AbstractDomain, FunctionContext, JoinResult, TransferFunctions, analyze_function,
25};
26use move_bytecode_verifier_meter::{Meter, Scope};
27use move_core_types::{ident_str, vm_status::StatusCode};
28use std::{collections::BTreeMap, error::Error, num::NonZeroU64};
29use sui_types::bridge::BRIDGE_MODULE_NAME;
30use sui_types::deny_list_v1::{DENY_LIST_CREATE_FUNC, DENY_LIST_MODULE};
31use sui_types::{
32    BRIDGE_ADDRESS, SUI_FRAMEWORK_ADDRESS, SUI_SYSTEM_ADDRESS,
33    accumulator_event::ACCUMULATOR_MODULE_NAME,
34    authenticator_state::AUTHENTICATOR_STATE_MODULE_NAME,
35    clock::CLOCK_MODULE_NAME,
36    error::{ExecutionError, VMMVerifierErrorSubStatusCode},
37    id::OBJECT_MODULE_NAME,
38    randomness_state::RANDOMNESS_MODULE_NAME,
39    sui_system_state::SUI_SYSTEM_MODULE_NAME,
40};
41
42use crate::{
43    FunctionIdent, TEST_SCENARIO_MODULE_NAME, check_for_verifier_timeout,
44    to_verification_timeout_error, verification_failure,
45};
46pub(crate) const JOIN_BASE_COST: u128 = 10;
47pub(crate) const JOIN_PER_LOCAL_COST: u128 = 5;
48pub(crate) const STEP_BASE_COST: u128 = 15;
49
50#[derive(Clone, Copy, Debug, Eq, PartialEq)]
51enum AbstractValue {
52    Fresh,
53    Other,
54}
55
56const OBJECT_NEW: FunctionIdent = (SUI_FRAMEWORK_ADDRESS, OBJECT_MODULE_NAME, ident_str!("new"));
57const OBJECT_NEW_UID_FROM_HASH: FunctionIdent = (
58    SUI_FRAMEWORK_ADDRESS,
59    OBJECT_MODULE_NAME,
60    ident_str!("new_uid_from_hash"),
61);
62const OBJECT_NEW_DERIVED: FunctionIdent = (
63    SUI_FRAMEWORK_ADDRESS,
64    ident_str!("derived_object"),
65    ident_str!("claim"),
66);
67const TS_NEW_OBJECT: FunctionIdent = (
68    SUI_FRAMEWORK_ADDRESS,
69    ident_str!(TEST_SCENARIO_MODULE_NAME),
70    ident_str!("new_object"),
71);
72const SUI_SYSTEM_CREATE: FunctionIdent = (
73    SUI_SYSTEM_ADDRESS,
74    SUI_SYSTEM_MODULE_NAME,
75    ident_str!("create"),
76);
77const SUI_CLOCK_CREATE: FunctionIdent = (
78    SUI_FRAMEWORK_ADDRESS,
79    CLOCK_MODULE_NAME,
80    ident_str!("create"),
81);
82const SUI_AUTHENTICATOR_STATE_CREATE: FunctionIdent = (
83    SUI_FRAMEWORK_ADDRESS,
84    AUTHENTICATOR_STATE_MODULE_NAME,
85    ident_str!("create"),
86);
87const SUI_RANDOMNESS_STATE_CREATE: FunctionIdent = (
88    SUI_FRAMEWORK_ADDRESS,
89    RANDOMNESS_MODULE_NAME,
90    ident_str!("create"),
91);
92const SUI_DENY_LIST_CREATE: FunctionIdent = (
93    SUI_FRAMEWORK_ADDRESS,
94    DENY_LIST_MODULE,
95    DENY_LIST_CREATE_FUNC,
96);
97
98const SUI_BRIDGE_CREATE: FunctionIdent = (BRIDGE_ADDRESS, BRIDGE_MODULE_NAME, ident_str!("create"));
99const SUI_ACCUMULATOR_CREATE: FunctionIdent = (
100    SUI_FRAMEWORK_ADDRESS,
101    ACCUMULATOR_MODULE_NAME,
102    ident_str!("create"),
103);
104const SUI_COIN_REGISTRY_CREATE: FunctionIdent = (
105    SUI_FRAMEWORK_ADDRESS,
106    ident_str!("coin_registry"),
107    ident_str!("create"),
108);
109const SUI_ALIAS_CREATE: FunctionIdent = (
110    SUI_FRAMEWORK_ADDRESS,
111    ident_str!("address_alias"),
112    ident_str!("create"),
113);
114const FRESH_ID_FUNCTIONS: &[FunctionIdent] = &[
115    OBJECT_NEW,
116    OBJECT_NEW_UID_FROM_HASH,
117    OBJECT_NEW_DERIVED,
118    TS_NEW_OBJECT,
119];
120const FUNCTIONS_TO_SKIP: &[FunctionIdent] = &[
121    SUI_SYSTEM_CREATE,
122    SUI_CLOCK_CREATE,
123    SUI_AUTHENTICATOR_STATE_CREATE,
124    SUI_RANDOMNESS_STATE_CREATE,
125    SUI_DENY_LIST_CREATE,
126    SUI_BRIDGE_CREATE,
127    SUI_ACCUMULATOR_CREATE,
128    SUI_COIN_REGISTRY_CREATE,
129    SUI_ALIAS_CREATE,
130];
131
132impl AbstractValue {
133    pub fn join(&self, value: &AbstractValue) -> AbstractValue {
134        if self == value {
135            *value
136        } else {
137            AbstractValue::Other
138        }
139    }
140}
141
142pub fn verify_module(
143    module: &CompiledModule,
144    meter: &mut (impl Meter + ?Sized),
145) -> Result<(), ExecutionError> {
146    verify_id_leak(module, meter)
147}
148
149fn verify_id_leak(
150    module: &CompiledModule,
151    meter: &mut (impl Meter + ?Sized),
152) -> Result<(), ExecutionError> {
153    for (index, func_def) in module.function_defs.iter().enumerate() {
154        let code = match func_def.code.as_ref() {
155            Some(code) => code,
156            None => continue,
157        };
158        let handle = module.function_handle_at(func_def.function);
159        let function_context =
160            FunctionContext::new(module, FunctionDefinitionIndex(index as u16), code, handle);
161        let initial_state = AbstractState::new(&function_context);
162        let mut verifier = IDLeakAnalysis::new(module, &function_context);
163        let function_to_verify = verifier.cur_function();
164        if FUNCTIONS_TO_SKIP.contains(&function_to_verify) {
165            continue;
166        }
167        analyze_function(&function_context, meter, &mut verifier, initial_state).map_err(
168            |err| {
169                // Handle verification timeout specially
170                if check_for_verifier_timeout(&err.major_status()) {
171                    to_verification_timeout_error(err.to_string())
172                } else if let Some(message) = err.source().as_ref() {
173                    let function_name =
174                        module.identifier_at(module.function_handle_at(func_def.function).name);
175                    let module_name = module.self_id();
176                    verification_failure(format!(
177                        "{} Found in {module_name}::{function_name}",
178                        message
179                    ))
180                } else {
181                    verification_failure(err.to_string())
182                }
183            },
184        )?;
185    }
186
187    Ok(())
188}
189
190#[derive(Clone, Debug, PartialEq, Eq)]
191pub(crate) struct AbstractState {
192    locals: BTreeMap<LocalIndex, AbstractValue>,
193}
194
195impl AbstractState {
196    /// create a new abstract state
197    pub fn new(function_context: &FunctionContext) -> Self {
198        let mut state = AbstractState {
199            locals: BTreeMap::new(),
200        };
201
202        for param_idx in 0..function_context.parameters().len() {
203            state
204                .locals
205                .insert(param_idx as LocalIndex, AbstractValue::Other);
206        }
207
208        state
209    }
210}
211
212impl AbstractDomain for AbstractState {
213    /// attempts to join state to self and returns the result
214    fn join(
215        &mut self,
216        state: &AbstractState,
217        meter: &mut (impl Meter + ?Sized),
218    ) -> Result<JoinResult, PartialVMError> {
219        meter.add(Scope::Function, JOIN_BASE_COST)?;
220        meter.add_items(Scope::Function, JOIN_PER_LOCAL_COST, state.locals.len())?;
221        let mut changed = false;
222        for (local, value) in &state.locals {
223            let old_value = *self.locals.get(local).unwrap_or(&AbstractValue::Other);
224            let new_value = value.join(&old_value);
225            changed |= new_value != old_value;
226            self.locals.insert(*local, new_value);
227        }
228        if changed {
229            Ok(JoinResult::Changed)
230        } else {
231            Ok(JoinResult::Unchanged)
232        }
233    }
234}
235
236struct IDLeakAnalysis<'a> {
237    binary_view: &'a CompiledModule,
238    function_context: &'a FunctionContext<'a>,
239    stack: AbstractStack<AbstractValue>,
240}
241
242impl<'a> IDLeakAnalysis<'a> {
243    fn new(binary_view: &'a CompiledModule, function_context: &'a FunctionContext<'a>) -> Self {
244        Self {
245            binary_view,
246            function_context,
247            stack: AbstractStack::new(),
248        }
249    }
250
251    fn stack_popn(&mut self, n: u64) -> Result<(), PartialVMError> {
252        let Some(n) = NonZeroU64::new(n) else {
253            return Ok(());
254        };
255        self.stack.pop_any_n(n).map_err(|e| {
256            PartialVMError::new(StatusCode::VERIFIER_INVARIANT_VIOLATION)
257                .with_message(format!("Unexpected stack error on pop_n: {e}"))
258        })
259    }
260
261    fn stack_push(&mut self, val: AbstractValue) -> Result<(), PartialVMError> {
262        self.stack.push(val).map_err(|e| {
263            PartialVMError::new(StatusCode::VERIFIER_INVARIANT_VIOLATION)
264                .with_message(format!("Unexpected stack error on push: {e}"))
265        })
266    }
267
268    fn stack_pushn(&mut self, n: u64, val: AbstractValue) -> Result<(), PartialVMError> {
269        self.stack.push_n(val, n).map_err(|e| {
270            PartialVMError::new(StatusCode::VERIFIER_INVARIANT_VIOLATION)
271                .with_message(format!("Unexpected stack error on push_n: {e}"))
272        })
273    }
274
275    fn resolve_function(&self, function_handle: &FunctionHandle) -> FunctionIdent<'a> {
276        let m = self.binary_view.module_handle_at(function_handle.module);
277        let address = *self.binary_view.address_identifier_at(m.address);
278        let module = self.binary_view.identifier_at(m.name);
279        let function = self.binary_view.identifier_at(function_handle.name);
280        (address, module, function)
281    }
282
283    fn cur_function(&self) -> FunctionIdent<'a> {
284        let fdef = self
285            .binary_view
286            .function_def_at(self.function_context.index().unwrap());
287        let handle = self.binary_view.function_handle_at(fdef.function);
288        self.resolve_function(handle)
289    }
290}
291
292impl TransferFunctions for IDLeakAnalysis<'_> {
293    type State = AbstractState;
294
295    fn execute(
296        &mut self,
297        state: &mut Self::State,
298        bytecode: &Bytecode,
299        index: CodeOffset,
300        (_first_index, last_index): (u16, u16),
301        meter: &mut (impl Meter + ?Sized),
302    ) -> Result<(), PartialVMError> {
303        execute_inner(self, state, bytecode, index, meter)?;
304        // invariant: the stack should be empty at the end of the block
305        // If it is not, something is wrong with the implementation, so throw an invariant
306        // violation
307        if index == last_index && !self.stack.is_empty() {
308            let msg = "Invalid stack transitions. Non-zero stack size at the end of the block"
309                .to_string();
310            debug_assert!(false, "{msg}",);
311            return Err(
312                PartialVMError::new(StatusCode::VERIFIER_INVARIANT_VIOLATION).with_message(msg),
313            );
314        }
315        Ok(())
316    }
317}
318
319fn call(
320    verifier: &mut IDLeakAnalysis,
321    function_handle: &FunctionHandle,
322) -> Result<(), PartialVMError> {
323    let parameters = verifier
324        .binary_view
325        .signature_at(function_handle.parameters);
326    verifier.stack_popn(parameters.len() as u64)?;
327
328    let return_ = verifier.binary_view.signature_at(function_handle.return_);
329    let function = verifier.resolve_function(function_handle);
330    if FRESH_ID_FUNCTIONS.contains(&function) {
331        if return_.0.len() != 1 {
332            debug_assert!(false, "{:?} should have a single return value", function);
333            return Err(PartialVMError::new(StatusCode::UNKNOWN_VERIFICATION_ERROR)
334                .with_message("Should have a single return value".to_string())
335                .with_sub_status(
336                    VMMVerifierErrorSubStatusCode::MULTIPLE_RETURN_VALUES_NOT_ALLOWED as u64,
337                ));
338        }
339        verifier.stack_push(AbstractValue::Fresh)?;
340    } else {
341        verifier.stack_pushn(return_.0.len() as u64, AbstractValue::Other)?;
342    }
343    Ok(())
344}
345
346fn num_fields(struct_def: &StructDefinition) -> u64 {
347    match &struct_def.field_information {
348        StructFieldInformation::Native => 0,
349        StructFieldInformation::Declared(fields) => fields.len() as u64,
350    }
351}
352
353fn pack(
354    verifier: &mut IDLeakAnalysis,
355    struct_def: &StructDefinition,
356) -> Result<(), PartialVMError> {
357    // When packing, an object whose struct type has key ability must have the first field as
358    // "id". That fields must come from one of the functions that creates a new UID.
359    let handle = verifier
360        .binary_view
361        .datatype_handle_at(struct_def.struct_handle);
362    let num_fields = num_fields(struct_def);
363    verifier.stack_popn(num_fields - 1)?;
364    let last_value = verifier.stack.pop().unwrap();
365    if handle.abilities.has_key() && last_value != AbstractValue::Fresh {
366        let (cur_package, cur_module, cur_function) = verifier.cur_function();
367        let msg = format!(
368            "Invalid object creation in {cur_package}::{cur_module}::{cur_function}. \
369                Object created without a newly created UID. \
370                The UID must come directly from `sui::{}::{}`, or `sui::{}::{}`. \
371                For tests, it can also come from `sui::{}::{}`",
372            OBJECT_NEW.1,
373            OBJECT_NEW.2,
374            OBJECT_NEW_DERIVED.1,
375            OBJECT_NEW_DERIVED.2,
376            TS_NEW_OBJECT.1,
377            TS_NEW_OBJECT.2
378        );
379
380        return Err(PartialVMError::new(StatusCode::UNKNOWN_VERIFICATION_ERROR)
381            .with_message(msg)
382            .with_sub_status(VMMVerifierErrorSubStatusCode::INVALID_OBJECT_CREATION as u64));
383    }
384    verifier.stack_push(AbstractValue::Other)?;
385    Ok(())
386}
387
388fn unpack(
389    verifier: &mut IDLeakAnalysis,
390    struct_def: &StructDefinition,
391) -> Result<(), PartialVMError> {
392    verifier.stack.pop().unwrap();
393    verifier.stack_pushn(num_fields(struct_def), AbstractValue::Other)
394}
395
396fn execute_inner(
397    verifier: &mut IDLeakAnalysis,
398    state: &mut AbstractState,
399    bytecode: &Bytecode,
400    _: CodeOffset,
401    meter: &mut (impl Meter + ?Sized),
402) -> Result<(), PartialVMError> {
403    meter.add(Scope::Function, STEP_BASE_COST)?;
404    // TODO: Better diagnostics with location
405    match bytecode {
406        Bytecode::Pop => {
407            verifier.stack.pop().unwrap();
408        }
409        Bytecode::CopyLoc(_local) => {
410            // cannot copy a UID
411            verifier.stack_push(AbstractValue::Other)?;
412        }
413        Bytecode::MoveLoc(local) => {
414            let value = state.locals.remove(local).unwrap();
415            verifier.stack_push(value)?;
416        }
417        Bytecode::StLoc(local) => {
418            let value = verifier.stack.pop().unwrap();
419            state.locals.insert(*local, value);
420        }
421
422        // Reference won't be ID.
423        Bytecode::FreezeRef
424        // ID doesn't have copy ability, hence ReadRef won't produce an ID.
425        | Bytecode::ReadRef
426        // Following are unary operators that don't apply to ID.
427        | Bytecode::CastU8
428        | Bytecode::CastU16
429        | Bytecode::CastU32
430        | Bytecode::CastU64
431        | Bytecode::CastU128
432        | Bytecode::CastU256
433        | Bytecode::Not
434        | Bytecode::VecLen(_)
435        | Bytecode::VecPopBack(_) => {
436            verifier.stack.pop().unwrap();
437            verifier.stack_push(AbstractValue::Other)?;
438        }
439
440        // These bytecodes don't operate on any value.
441        Bytecode::Branch(_)
442        | Bytecode::Nop => {}
443
444        // These binary operators cannot produce ID as result.
445        Bytecode::Eq
446        | Bytecode::Neq
447        | Bytecode::Add
448        | Bytecode::Sub
449        | Bytecode::Mul
450        | Bytecode::Mod
451        | Bytecode::Div
452        | Bytecode::BitOr
453        | Bytecode::BitAnd
454        | Bytecode::Xor
455        | Bytecode::Shl
456        | Bytecode::Shr
457        | Bytecode::Or
458        | Bytecode::And
459        | Bytecode::Lt
460        | Bytecode::Gt
461        | Bytecode::Le
462        | Bytecode::Ge
463        | Bytecode::VecImmBorrow(_)
464        | Bytecode::VecMutBorrow(_) => {
465            verifier.stack.pop().unwrap();
466            verifier.stack.pop().unwrap();
467            verifier.stack_push(AbstractValue::Other)?;
468        }
469        Bytecode::WriteRef => {
470            verifier.stack.pop().unwrap();
471            verifier.stack.pop().unwrap();
472        }
473
474        // These bytecodes produce references, and hence cannot be ID.
475        Bytecode::MutBorrowLoc(_)
476        | Bytecode::ImmBorrowLoc(_) => verifier.stack_push(AbstractValue::Other)?,
477
478        | Bytecode::MutBorrowField(_)
479        | Bytecode::MutBorrowFieldGeneric(_)
480        | Bytecode::ImmBorrowField(_)
481        | Bytecode::ImmBorrowFieldGeneric(_) => {
482            verifier.stack.pop().unwrap();
483            verifier.stack_push(AbstractValue::Other)?;
484        }
485
486        // These bytecodes are not allowed, and will be
487        // flagged as error in a different verifier.
488        Bytecode::MoveFromDeprecated(_)
489                | Bytecode::MoveFromGenericDeprecated(_)
490                | Bytecode::MoveToDeprecated(_)
491                | Bytecode::MoveToGenericDeprecated(_)
492                | Bytecode::ImmBorrowGlobalDeprecated(_)
493                | Bytecode::MutBorrowGlobalDeprecated(_)
494                | Bytecode::ImmBorrowGlobalGenericDeprecated(_)
495                | Bytecode::MutBorrowGlobalGenericDeprecated(_)
496                | Bytecode::ExistsDeprecated(_)
497                | Bytecode::ExistsGenericDeprecated(_) => {
498            panic!("Should have been checked by global_storage_access_verifier.");
499        }
500
501        Bytecode::Call(idx) => {
502            let function_handle = verifier.binary_view.function_handle_at(*idx);
503            call(verifier, function_handle)?;
504        }
505        Bytecode::CallGeneric(idx) => {
506            let func_inst = verifier.binary_view.function_instantiation_at(*idx);
507            let function_handle = verifier.binary_view.function_handle_at(func_inst.handle);
508            call(verifier, function_handle)?;
509        }
510
511        Bytecode::Ret => {
512            verifier.stack_popn(verifier.function_context.return_().len() as u64)?
513        }
514
515        Bytecode::BrTrue(_) | Bytecode::BrFalse(_) | Bytecode::Abort => {
516            verifier.stack.pop().unwrap();
517        }
518
519        // These bytecodes produce constants, and hence cannot be ID.
520        Bytecode::LdTrue | Bytecode::LdFalse | Bytecode::LdU8(_) | Bytecode::LdU16(_)| Bytecode::LdU32(_)  | Bytecode::LdU64(_) | Bytecode::LdU128(_)| Bytecode::LdU256(_)  | Bytecode::LdConst(_) => {
521            verifier.stack_push(AbstractValue::Other)?;
522        }
523
524        Bytecode::Pack(idx) => {
525            let struct_def = verifier.binary_view.struct_def_at(*idx);
526            pack(verifier, struct_def)?;
527        }
528        Bytecode::PackGeneric(idx) => {
529            let struct_inst = verifier.binary_view.struct_instantiation_at(*idx);
530            let struct_def = verifier.binary_view.struct_def_at(struct_inst.def);
531            pack(verifier, struct_def)?;
532        }
533        Bytecode::Unpack(idx) => {
534            let struct_def = verifier.binary_view.struct_def_at(*idx);
535            unpack(verifier, struct_def)?;
536        }
537        Bytecode::UnpackGeneric(idx) => {
538            let struct_inst = verifier.binary_view.struct_instantiation_at(*idx);
539            let struct_def = verifier.binary_view.struct_def_at(struct_inst.def);
540            unpack(verifier, struct_def)?;
541        }
542
543        Bytecode::VecPack(_, num) => {
544            verifier.stack_popn(*num )?;
545            verifier.stack_push(AbstractValue::Other)?;
546        }
547
548        Bytecode::VecPushBack(_) => {
549            verifier.stack.pop().unwrap();
550            verifier.stack.pop().unwrap();
551        }
552
553        Bytecode::VecUnpack(_, num) => {
554            verifier.stack.pop().unwrap();
555            verifier.stack_pushn(*num, AbstractValue::Other)?;
556        }
557
558        Bytecode::VecSwap(_) => {
559            verifier.stack.pop().unwrap();
560            verifier.stack.pop().unwrap();
561            verifier.stack.pop().unwrap();
562        }
563        Bytecode::PackVariant(vidx) =>  {
564            let handle = verifier.binary_view.variant_handle_at(*vidx);
565            let variant = verifier.binary_view.variant_def_at(handle.enum_def, handle.variant);
566            let num_fields = variant.fields.len();
567            verifier.stack_popn(num_fields as u64)?;
568            verifier.stack_push(AbstractValue::Other)?;
569        }
570        Bytecode::PackVariantGeneric(vidx) =>  {
571            let handle = verifier.binary_view.variant_instantiation_handle_at(*vidx);
572            let enum_inst = verifier.binary_view.enum_instantiation_at(handle.enum_def);
573            let variant = verifier.binary_view.variant_def_at(enum_inst.def, handle.variant);
574            let num_fields = variant.fields.len();
575            verifier.stack_popn(num_fields as u64)?;
576            verifier.stack_push(AbstractValue::Other)?;
577        }
578        Bytecode::UnpackVariant(vidx)
579        | Bytecode::UnpackVariantImmRef(vidx)
580        | Bytecode::UnpackVariantMutRef(vidx) =>  {
581            let handle = verifier.binary_view.variant_handle_at(*vidx);
582            let variant = verifier.binary_view.variant_def_at(handle.enum_def, handle.variant);
583            let num_fields = variant.fields.len();
584            verifier.stack.pop().unwrap();
585            verifier.stack_pushn(num_fields as u64, AbstractValue::Other)?;
586        }
587        Bytecode::UnpackVariantGeneric(vidx)
588        | Bytecode::UnpackVariantGenericImmRef(vidx)
589        | Bytecode::UnpackVariantGenericMutRef(vidx) =>  {
590            let handle = verifier.binary_view.variant_instantiation_handle_at(*vidx);
591            let enum_inst = verifier.binary_view.enum_instantiation_at(handle.enum_def);
592            let variant = verifier.binary_view.variant_def_at(enum_inst.def, handle.variant);
593            let num_fields = variant.fields.len();
594            verifier.stack.pop().unwrap();
595            verifier.stack_pushn(num_fields as u64, AbstractValue::Other)?;
596        }
597        Bytecode::VariantSwitch(_) =>  {
598            verifier.stack.pop().unwrap();
599        }
600    };
601    Ok(())
602}
sui_verifier_latest/id_leak_verifier.rs

sui_verifier_latest/
id_leak_verifier.rs
