neoneo-go/pkg/vm/slot.go

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package vm
import (
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"encoding/json"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
)
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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// slot is a fixed-size slice of stack items.
type slot []stackitem.Item
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// init sets static slot size to n. It is intended to be used only by INITSSLOT.
func (s *slot) init(n int, rc *refCounter) {
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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if *s != nil {
panic("already initialized")
}
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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*s = make([]stackitem.Item, n)
*rc += refCounter(n) // Virtual "Null" elements.
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}
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// Set sets i-th storage slot.
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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func (s slot) Set(i int, item stackitem.Item, refs *refCounter) {
if s[i] == item {
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return
}
refs.Remove(s[i])
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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s[i] = item
refs.Add(item)
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}
// Get returns the item contained in the i-th slot.
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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func (s slot) Get(i int) stackitem.Item {
if item := s[i]; item != nil {
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return item
}
return stackitem.Null{}
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}
// ClearRefs removes all slot variables from the reference counter.
func (s slot) ClearRefs(refs *refCounter) {
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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for _, item := range s {
refs.Remove(item)
}
}
// Size returns the slot size.
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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func (s slot) Size() int {
if s == nil {
panic("not initialized")
}
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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return len(s)
}
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// MarshalJSON implements the JSON marshalling interface.
vm: simplify slot and make it private Hiding refcounter inside a slot is actually a good idea, but it makes the structure somewhat bigger, especially given that the refcounter is the same and belongs more to VM or Context. New structure is a bit more efficient: name old time/op new time/op delta ScriptFibonacci-8 672µs ± 2% 644µs ± 0% -4.15% (p=0.008 n=5+5) ScriptNestedRefCount-8 1.08ms ± 1% 1.05ms ± 2% -2.56% (p=0.008 n=5+5) ScriptPushPop/4-8 1.52µs ± 1% 1.47µs ± 1% -3.14% (p=0.008 n=5+5) ScriptPushPop/16-8 3.66µs ± 1% 3.54µs ± 1% -3.24% (p=0.008 n=5+5) ScriptPushPop/128-8 24.7µs ± 1% 23.2µs ± 1% -6.14% (p=0.008 n=5+5) ScriptPushPop/1024-8 183µs ± 1% 173µs ± 1% -5.01% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ScriptFibonacci-8 114kB ± 0% 114kB ± 0% ~ (p=0.079 n=4+5) ScriptNestedRefCount-8 241kB ± 0% 241kB ± 0% ~ (p=0.333 n=5+4) ScriptPushPop/4-8 160B ± 0% 160B ± 0% ~ (all equal) ScriptPushPop/16-8 640B ± 0% 640B ± 0% ~ (all equal) ScriptPushPop/128-8 8.70kB ± 0% 8.70kB ± 0% ~ (all equal) ScriptPushPop/1024-8 73.2kB ± 0% 73.2kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta ScriptFibonacci-8 3.17k ± 0% 3.17k ± 0% -0.03% (p=0.008 n=5+5) ScriptNestedRefCount-8 10.7k ± 0% 10.7k ± 0% ~ (all equal) ScriptPushPop/4-8 8.00 ± 0% 8.00 ± 0% ~ (all equal) ScriptPushPop/16-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) ScriptPushPop/128-8 259 ± 0% 259 ± 0% ~ (all equal) ScriptPushPop/1024-8 2.05k ± 0% 2.05k ± 0% ~ (all equal) It'd be especially nice to internalize static slot, but as we can't compare slices it's not possible.
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func (s slot) MarshalJSON() ([]byte, error) {
arr := make([]json.RawMessage, len(s))
for i := range s {
data, err := stackitem.ToJSONWithTypes(s[i])
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if err == nil {
arr[i] = data
}
}
return json.Marshal(arr)
}