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test/fixedbugs/issue30606b.go
51 строка
2 KB
Keith Randall
reflect: fix more issues with StructOf GC programs
07 мар 2019, 03:06
07 мар 2019, 03:06
9dc3b8b
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// run // Copyright 2019 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import "reflect" func main() {} func typ(x interface{}) reflect.Type { return reflect.ValueOf(x).Type() } var byteType = typ((byte)(0)) var ptrType = typ((*byte)(nil)) // Arrays of pointers. There are two size thresholds. // Bit masks are chunked in groups of 120 pointers. // Array types with >16384 pointers have a GC program instead of a bitmask. var smallPtrType = reflect.ArrayOf(100, ptrType) var mediumPtrType = reflect.ArrayOf(1000, ptrType) var bigPtrType = reflect.ArrayOf(16385, ptrType) var x0 = reflect.New(reflect.StructOf([]reflect.StructField{ {Name: "F1", Type: byteType}, {Name: "F2", Type: bigPtrType}, })) var x1 = reflect.New(reflect.StructOf([]reflect.StructField{ {Name: "F1", Type: smallPtrType}, {Name: "F2", Type: bigPtrType}, })) var x2 = reflect.New(reflect.StructOf([]reflect.StructField{ {Name: "F1", Type: mediumPtrType}, {Name: "F2", Type: bigPtrType}, })) var x3 = reflect.New(reflect.StructOf([]reflect.StructField{ {Name: "F1", Type: ptrType}, {Name: "F2", Type: byteType}, {Name: "F3", Type: bigPtrType}, })) var x4 = reflect.New(reflect.StructOf([]reflect.StructField{ {Name: "F1", Type: ptrType}, {Name: "F2", Type: smallPtrType}, {Name: "F3", Type: bigPtrType}, })) var x5 = reflect.New(reflect.StructOf([]reflect.StructField{ {Name: "F1", Type: ptrType}, {Name: "F2", Type: mediumPtrType}, {Name: "F3", Type: bigPtrType}, }))