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vm: drop ParamCount from Context

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It's unused and it's useless.
This commit is contained in:
Roman Khimov 2021-11-19 19:32:50 +03:00
parent 765235eca3
commit c53d978edd
3 changed files with 9 additions and 13 deletions
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2
pkg/core/interop/contract/call.go
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@ -113,7 +113,7 @@ func callExFromNative(ic *interop.Context, caller util.Uint160, cs *state.Contra
}
ic.VM.Invocations[cs.Hash]++
ic.VM.LoadScriptWithCallingHash(caller, cs.NEF.Script, cs.Hash, ic.VM.Context().GetCallFlags()&f, hasReturn, uint16(len(args)))
ic.VM.LoadScriptWithCallingHash(caller, cs.NEF.Script, cs.Hash, ic.VM.Context().GetCallFlags()&f, hasReturn)
ic.VM.Context().NEF = &cs.NEF
for e, i := ic.VM.Estack(), len(args)-1; i >= 0; i-- {
e.PushItem(args[i])

7
pkg/vm/context.go
View file

@ -48,8 +48,6 @@ type Context struct {
// Call flags this context was created with.
callFlag callflag.CallFlag
// ParamCount specifies number of parameters.
ParamCount int
// RetCount specifies number of return values.
RetCount int
// NEF represents NEF file for the current contract.
@ -73,15 +71,14 @@ var errNoInstParam = errors.New("failed to read instruction parameter")
// NewContext returns a new Context object.
func NewContext(b []byte) *Context {
return NewContextWithParams(b, 0, -1, 0)
return NewContextWithParams(b, -1, 0)
}
// NewContextWithParams creates new Context objects using script, parameter count,
// return value count and initial position in script.
func NewContextWithParams(b []byte, pcount int, rvcount int, pos int) *Context {
func NewContextWithParams(b []byte, rvcount int, pos int) *Context {
return &Context{
prog: b,
ParamCount: pcount,
RetCount: rvcount,
nextip: pos,
}

7
pkg/vm/vm.go
View file

@ -279,7 +279,7 @@ func (v *VM) LoadScript(b []byte) {
// LoadScriptWithFlags loads script and sets call flag to f.
func (v *VM) LoadScriptWithFlags(b []byte, f callflag.CallFlag) {
v.checkInvocationStackSize()
ctx := NewContextWithParams(b, 0, -1, 0)
ctx := NewContextWithParams(b, -1, 0)
v.estack = newStack("evaluation", &v.refs)
ctx.estack = v.estack
initStack(&ctx.tryStack, "exception", nil)
@ -297,13 +297,13 @@ func (v *VM) LoadScriptWithFlags(b []byte, f callflag.CallFlag) {
// each other.
func (v *VM) LoadScriptWithHash(b []byte, hash util.Uint160, f callflag.CallFlag) {
shash := v.GetCurrentScriptHash()
v.LoadScriptWithCallingHash(shash, b, hash, f, true, 0)
v.LoadScriptWithCallingHash(shash, b, hash, f, true)
}
// LoadScriptWithCallingHash is similar to LoadScriptWithHash but sets calling hash explicitly.
// It should be used for calling from native contracts.
func (v *VM) LoadScriptWithCallingHash(caller util.Uint160, b []byte, hash util.Uint160,
f callflag.CallFlag, hasReturn bool, paramCount uint16) {
f callflag.CallFlag, hasReturn bool) {
v.LoadScriptWithFlags(b, f)
ctx := v.Context()
ctx.scriptHash = hash
@ -313,7 +313,6 @@ func (v *VM) LoadScriptWithCallingHash(caller util.Uint160, b []byte, hash util.
} else {
ctx.RetCount = 0
}
ctx.ParamCount = int(paramCount)
}
// Context returns the current executed context. Nil if there is no context,