prologic revised this gist . Go to revision
1 file changed, 43 insertions
tau.patch(file created)
| @@ -0,0 +1,43 @@ | |||
| 1 | + | diff --git a/internal/vm/frame.go b/internal/vm/frame.go | |
| 2 | + | index 4d40d22..d18e159 100644 | |
| 3 | + | --- a/internal/vm/frame.go | |
| 4 | + | +++ b/internal/vm/frame.go | |
| 5 | + | @@ -1,10 +1,14 @@ | |
| 6 | + | package vm | |
| 7 | + | ||
| 8 | + | import ( | |
| 9 | + | + "fmt" | |
| 10 | + | + | |
| 11 | + | "github.com/NicoNex/tau/internal/code" | |
| 12 | + | "github.com/NicoNex/tau/internal/obj" | |
| 13 | + | ) | |
| 14 | + | ||
| 15 | + | +var cache = make(map[string]*Frame) | |
| 16 | + | + | |
| 17 | + | type Frame struct { | |
| 18 | + | cl *obj.Closure | |
| 19 | + | ip int | |
| 20 | + | @@ -12,11 +16,22 @@ type Frame struct { | |
| 21 | + | } | |
| 22 | + | ||
| 23 | + | func NewFrame(cl *obj.Closure, basePointer int) *Frame { | |
| 24 | + | - return &Frame{ | |
| 25 | + | + key := fmt.Sprintf("%p:%d", cl, basePointer) | |
| 26 | + | + if frame, ok := cache[key]; ok { | |
| 27 | + | + frame.Reset() | |
| 28 | + | + return frame | |
| 29 | + | + } | |
| 30 | + | + frame := &Frame{ | |
| 31 | + | cl: cl, | |
| 32 | + | ip: -1, | |
| 33 | + | basePointer: basePointer, | |
| 34 | + | } | |
| 35 | + | + cache[key] = frame | |
| 36 | + | + return frame | |
| 37 | + | +} | |
| 38 | + | + | |
| 39 | + | +func (f *Frame) Reset() { | |
| 40 | + | + f.ip = -1 | |
| 41 | + | } | |
| 42 | + | ||
| 43 | + | func (f *Frame) Instructions() code.Instructions { | |
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