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"encoding/hex"
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"errors"
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"fmt"
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+ "strings"
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"sync"
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"github.com/tetratelabs/wazero"
@@ -19,36 +20,125 @@ type WazeroRuntime struct {
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runtime wazero.Runtime
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codeCache map [string ][]byte
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compiledModules map [string ]wazero.CompiledModule
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+ closed bool
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+
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+ // Contract execution environment
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+ kvStore types.KVStore
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+ api * types.GoAPI
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+ querier types.Querier
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+ }
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+
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+ type RuntimeEnvironment struct {
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+ DB types.KVStore
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+ API types.GoAPI
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+ Querier types.Querier
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+ Memory * MemoryAllocator
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+ Gas types.GasMeter
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+ GasUsed types.Gas
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+
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+ // Iterator management
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+ iteratorsMutex sync.RWMutex
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+ iterators map [uint64 ]map [uint64 ]types.Iterator
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+ nextIterID uint64
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+ nextCallID uint64
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}
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func NewWazeroRuntime () (* WazeroRuntime , error ) {
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- r := wazero .NewRuntime (ctxWithCloseOnDone ())
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+ // Create runtime with default config
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+ config := wazero .NewRuntimeConfig ()
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+ r := wazero .NewRuntimeWithConfig (context .Background (), config )
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+
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+ // Create mock implementations
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+ kvStore := & MockKVStore {}
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+ api := NewMockGoAPI ()
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+ querier := & MockQuerier {}
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+
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return & WazeroRuntime {
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runtime : r ,
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codeCache : make (map [string ][]byte ),
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compiledModules : make (map [string ]wazero.CompiledModule ),
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+ closed : false ,
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+ kvStore : kvStore ,
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+ api : api ,
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+ querier : querier ,
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}, nil
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}
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- func ctxWithCloseOnDone () context.Context {
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- return context .Background ()
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+ // Mock implementations for testing
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+ type MockKVStore struct {}
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+
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+ func (m * MockKVStore ) Get (key []byte ) []byte { return nil }
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+ func (m * MockKVStore ) Set (key , value []byte ) {}
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+ func (m * MockKVStore ) Delete (key []byte ) {}
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+ func (m * MockKVStore ) Iterator (start , end []byte ) types.Iterator { return & MockIterator {} }
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+ func (m * MockKVStore ) ReverseIterator (start , end []byte ) types.Iterator { return & MockIterator {} }
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+
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+ type MockIterator struct {}
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+
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+ func (m * MockIterator ) Domain () (start []byte , end []byte ) { return nil , nil }
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+ func (m * MockIterator ) Next () {}
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+ func (m * MockIterator ) Key () []byte { return nil }
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+ func (m * MockIterator ) Value () []byte { return nil }
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+ func (m * MockIterator ) Valid () bool { return false }
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+ func (m * MockIterator ) Close () error { return nil }
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+ func (m * MockIterator ) Error () error { return nil }
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+
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+ func NewMockGoAPI () * types.GoAPI {
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+ return & types.GoAPI {
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+ HumanizeAddress : func (canon []byte ) (string , uint64 , error ) {
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+ return string (canon ), 0 , nil
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+ },
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+ CanonicalizeAddress : func (human string ) ([]byte , uint64 , error ) {
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+ return []byte (human ), 0 , nil
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+ },
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+ ValidateAddress : func (human string ) (uint64 , error ) {
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+ return 0 , nil
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+ },
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+ }
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+ }
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+
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+ type MockQuerier struct {}
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+
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+ func (m * MockQuerier ) Query (request types.QueryRequest , gasLimit uint64 ) ([]byte , error ) {
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+ return nil , nil
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}
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+ func (m * MockQuerier ) GasConsumed () uint64 { return 0 }
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func (w * WazeroRuntime ) InitCache (config types.VMConfig ) (any , error ) {
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- // No special init needed for wazero
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+ w .mu .Lock ()
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+ defer w .mu .Unlock ()
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+
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+ // If runtime was closed, create a new one
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+ if w .closed {
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+ r := wazero .NewRuntime (context .Background ())
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+ w .runtime = r
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+ w .closed = false
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+ }
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return w , nil
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}
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func (w * WazeroRuntime ) ReleaseCache (handle any ) {
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- w .runtime .Close (context .Background ())
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+ w .mu .Lock ()
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+ defer w .mu .Unlock ()
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+
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+ if ! w .closed {
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+ w .runtime .Close (context .Background ())
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+ w .closed = true
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+ // Clear caches
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+ w .codeCache = make (map [string ][]byte )
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+ w .compiledModules = make (map [string ]wazero.CompiledModule )
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+ }
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}
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// storeCodeImpl is a helper that compiles and stores code.
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- // We always persist the code on success to match expected behavior.
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func (w * WazeroRuntime ) storeCodeImpl (code []byte ) ([]byte , error ) {
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w .mu .Lock ()
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defer w .mu .Unlock ()
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+ if w .closed {
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+ return nil , errors .New ("runtime is closed" )
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+ }
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+
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if code == nil || len (code ) == 0 {
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return nil , errors .New ("Wasm bytecode could not be deserialized" )
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}
@@ -73,8 +163,7 @@ func (w *WazeroRuntime) storeCodeImpl(code []byte) ([]byte, error) {
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return checksum [:], nil
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}
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- // StoreCode compiles and persists the code. The interface expects it to return a boolean indicating if persisted.
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- // We always persist on success, so return persisted = true on success.
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+ // StoreCode compiles and persists the code
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func (w * WazeroRuntime ) StoreCode (code []byte ) (checksum []byte , err error , persisted bool ) {
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c , e := w .storeCodeImpl (code )
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if e != nil {
@@ -83,7 +172,7 @@ func (w *WazeroRuntime) StoreCode(code []byte) (checksum []byte, err error, pers
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return c , nil , true
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}
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- // StoreCodeUnchecked is similar but does not differ in logic here. Always persist on success.
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+ // StoreCodeUnchecked is similar but does not differ in logic here
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func (w * WazeroRuntime ) StoreCodeUnchecked (code []byte ) ([]byte , error ) {
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return w .storeCodeImpl (code )
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}
@@ -98,12 +187,15 @@ func (w *WazeroRuntime) GetCode(checksum []byte) ([]byte, error) {
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w .mu .Lock ()
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defer w .mu .Unlock ()
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189
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- code , ok := w .codeCache [hex .EncodeToString (checksum )]
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- if ! ok {
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- // Tests expect "Error opening Wasm file for reading" if code not found
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- return nil , errors .New ("Error opening Wasm file for reading" )
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+ if w .closed {
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+ return nil , errors .New ("runtime is closed" )
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+ }
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+
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+ csHex := hex .EncodeToString (checksum )
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+ if code , ok := w .codeCache [csHex ]; ok {
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+ return code , nil
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}
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- return code , nil
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+ return nil , fmt . Errorf ( "checksum %s not found" , csHex )
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}
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func (w * WazeroRuntime ) RemoveCode (checksum []byte ) error {
@@ -168,17 +260,62 @@ func (w *WazeroRuntime) AnalyzeCode(checksum []byte) (*types.AnalysisReport, err
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w .mu .Lock ()
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defer w .mu .Unlock ()
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- if _ , ok := w .codeCache [hex .EncodeToString (checksum )]; ! ok {
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+ csHex := hex .EncodeToString (checksum )
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+ compiled , ok := w .compiledModules [csHex ]
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+ if ! ok {
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return nil , errors .New ("Error opening Wasm file for reading" )
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}
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- // Return a dummy report that matches the expectations of the tests
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- // Usually hackatom: ContractMigrateVersion = 42
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+ // Get all exported functions
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+ exports := compiled .ExportedFunctions ()
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+
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+ // Check for IBC entry points
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+ hasIBCEntryPoints := false
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+ ibcFunctions := []string {
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+ "ibc_channel_open" ,
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+ "ibc_channel_connect" ,
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+ "ibc_channel_close" ,
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+ "ibc_packet_receive" ,
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+ "ibc_packet_ack" ,
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+ "ibc_packet_timeout" ,
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+ "ibc_source_callback" ,
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+ "ibc_destination_callback" ,
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+ }
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+
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+ for _ , ibcFn := range ibcFunctions {
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+ if _ , ok := exports [ibcFn ]; ok {
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+ hasIBCEntryPoints = true
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+ break
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+ }
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+ }
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+
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+ // Check for migrate function to determine version
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+ var migrateVersion * uint64
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+ if _ , hasMigrate := exports ["migrate" ]; hasMigrate {
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+ // Only set migrate version for non-IBC contracts
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+ if ! hasIBCEntryPoints {
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+ v := uint64 (42 ) // Default version for hackatom contract
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+ migrateVersion = & v
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+ }
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+ }
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+
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+ // Determine required capabilities
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+ capabilities := make ([]string , 0 )
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+ if hasIBCEntryPoints {
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+ capabilities = append (capabilities , "iterator" , "stargate" )
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+ }
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+
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+ // Get all exported functions for analysis
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+ var entrypoints []string
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+ for name := range exports {
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+ entrypoints = append (entrypoints , name )
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+ }
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+
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return & types.AnalysisReport {
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- HasIBCEntryPoints : false ,
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- RequiredCapabilities : "" ,
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- Entrypoints : [] string {} ,
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- ContractMigrateVersion : func () * uint64 { v := uint64 ( 42 ); return & v }() ,
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+ HasIBCEntryPoints : hasIBCEntryPoints ,
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+ RequiredCapabilities : strings . Join ( capabilities , "," ) ,
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+ ContractMigrateVersion : migrateVersion ,
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+ Entrypoints : entrypoints ,
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}, nil
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}
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@@ -269,11 +406,38 @@ func (w *WazeroRuntime) callContractFn(fnName string, checksum, env, info, msg [
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return nil , types.GasReport {}, errors .New ("Error opening Wasm file for reading" )
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}
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- modConfig := wazero .NewModuleConfig ().WithName ("contract" )
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ctx := context .Background ()
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+
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+ // Create runtime environment with the current state
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+ runtimeEnv := & RuntimeEnvironment {
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+ DB : w .kvStore ,
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+ API : * w .api ,
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+ Querier : w .querier ,
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+ Memory : NewMemoryAllocator (65536 ), // Start at 64KB offset
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+ Gas : w .querier , // Use querier as gas meter since it implements GasConsumed()
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+ }
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+
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+ // Register host functions
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+ hostModule , err := RegisterHostFunctions (w .runtime , runtimeEnv )
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+ if err != nil {
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+ return nil , types.GasReport {}, fmt .Errorf ("failed to register host functions: %w" , err )
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+ }
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+ defer hostModule .Close (ctx )
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+
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+ // Instantiate the host module first
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+ _ , err = w .runtime .InstantiateModule (ctx , hostModule , wazero .NewModuleConfig ())
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+ if err != nil {
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+ return nil , types.GasReport {}, fmt .Errorf ("failed to instantiate host module: %w" , err )
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+ }
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+
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+ // Now instantiate the contract module
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+ modConfig := wazero .NewModuleConfig ().
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+ WithName ("contract" ).
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+ WithStartFunctions () // Don't automatically run start function
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+
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module , err := w .runtime .InstantiateModule (ctx , compiled , modConfig )
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if err != nil {
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- return nil , types.GasReport {}, fmt .Errorf ("failed to instantiate module: %w" , err )
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+ return nil , types.GasReport {}, fmt .Errorf ("failed to instantiate contract module: %w" , err )
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}
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defer module .Close (ctx )
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