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Improve encoding performance for empty interface type

This commit is contained in:
Masaaki Goshima 2021-06-26 15:49:13 +09:00
parent 595e20a25e
commit 66bf979e47
5 changed files with 45 additions and 20 deletions
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7
internal/cmd/generator/vm.go.tmpl
View File

@ -177,11 +177,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
code = code.Next
break
}
if recursiveLevel > encoder.StartDetectingCyclesAfter {
for _, seen := range ctx.SeenPtr {
if p == seen {
return nil, errUnsupportedValue(code, p)
}
}
}
ctx.SeenPtr = append(ctx.SeenPtr, p)
iface := (*emptyInterface)(ptrToUnsafePtr(p))
if iface.ptr == nil {
@ -226,9 +228,12 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
store(ctxptr, end.ElemIdx, uintptr(unsafe.Pointer(code.Next)))
storeIndent(ctxptr, end, uintptr(oldBaseIndent))
code = c
recursiveLevel++
case encoder.OpInterfaceEnd:
offset := load(ctxptr, code.Idx)
recursiveLevel--
// restore ctxptr
offset := load(ctxptr, code.Idx)
restoreIndent(ctx, code, ctxptr)
ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]

7
internal/encoder/vm/vm.go
View File

@ -177,11 +177,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
code = code.Next
break
}
if recursiveLevel > encoder.StartDetectingCyclesAfter {
for _, seen := range ctx.SeenPtr {
if p == seen {
return nil, errUnsupportedValue(code, p)
}
}
}
ctx.SeenPtr = append(ctx.SeenPtr, p)
iface := (*emptyInterface)(ptrToUnsafePtr(p))
if iface.ptr == nil {
@ -226,9 +228,12 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
store(ctxptr, end.ElemIdx, uintptr(unsafe.Pointer(code.Next)))
storeIndent(ctxptr, end, uintptr(oldBaseIndent))
code = c
recursiveLevel++
case encoder.OpInterfaceEnd:
offset := load(ctxptr, code.Idx)
recursiveLevel--
// restore ctxptr
offset := load(ctxptr, code.Idx)
restoreIndent(ctx, code, ctxptr)
ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]

7
internal/encoder/vm_color/vm.go
View File

@ -177,11 +177,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
code = code.Next
break
}
if recursiveLevel > encoder.StartDetectingCyclesAfter {
for _, seen := range ctx.SeenPtr {
if p == seen {
return nil, errUnsupportedValue(code, p)
}
}
}
ctx.SeenPtr = append(ctx.SeenPtr, p)
iface := (*emptyInterface)(ptrToUnsafePtr(p))
if iface.ptr == nil {
@ -226,9 +228,12 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
store(ctxptr, end.ElemIdx, uintptr(unsafe.Pointer(code.Next)))
storeIndent(ctxptr, end, uintptr(oldBaseIndent))
code = c
recursiveLevel++
case encoder.OpInterfaceEnd:
offset := load(ctxptr, code.Idx)
recursiveLevel--
// restore ctxptr
offset := load(ctxptr, code.Idx)
restoreIndent(ctx, code, ctxptr)
ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]

7
internal/encoder/vm_color_indent/vm.go
View File

@ -177,11 +177,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
code = code.Next
break
}
if recursiveLevel > encoder.StartDetectingCyclesAfter {
for _, seen := range ctx.SeenPtr {
if p == seen {
return nil, errUnsupportedValue(code, p)
}
}
}
ctx.SeenPtr = append(ctx.SeenPtr, p)
iface := (*emptyInterface)(ptrToUnsafePtr(p))
if iface.ptr == nil {
@ -226,9 +228,12 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
store(ctxptr, end.ElemIdx, uintptr(unsafe.Pointer(code.Next)))
storeIndent(ctxptr, end, uintptr(oldBaseIndent))
code = c
recursiveLevel++
case encoder.OpInterfaceEnd:
offset := load(ctxptr, code.Idx)
recursiveLevel--
// restore ctxptr
offset := load(ctxptr, code.Idx)
restoreIndent(ctx, code, ctxptr)
ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]

7
internal/encoder/vm_indent/vm.go
View File

@ -177,11 +177,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
code = code.Next
break
}
if recursiveLevel > encoder.StartDetectingCyclesAfter {
for _, seen := range ctx.SeenPtr {
if p == seen {
return nil, errUnsupportedValue(code, p)
}
}
}
ctx.SeenPtr = append(ctx.SeenPtr, p)
iface := (*emptyInterface)(ptrToUnsafePtr(p))
if iface.ptr == nil {
@ -226,9 +228,12 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]b
store(ctxptr, end.ElemIdx, uintptr(unsafe.Pointer(code.Next)))
storeIndent(ctxptr, end, uintptr(oldBaseIndent))
code = c
recursiveLevel++
case encoder.OpInterfaceEnd:
offset := load(ctxptr, code.Idx)
recursiveLevel--
// restore ctxptr
offset := load(ctxptr, code.Idx)
restoreIndent(ctx, code, ctxptr)
ctx.SeenPtr = ctx.SeenPtr[:len(ctx.SeenPtr)-1]