Source file test/codegen/typeswitch.go

     1  // asmcheck
     2  
     3  // Copyright 2024 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package codegen
     8  
     9  type Ix interface {
    10  	X()
    11  }
    12  
    13  type Iy interface {
    14  	Y()
    15  }
    16  
    17  type Iz interface {
    18  	Z()
    19  }
    20  
    21  func swXYZ(a Ix) {
    22  	switch t := a.(type) {
    23  	case Iy: // amd64:-".*typeAssert"
    24  		t.Y()
    25  	case Iz: // amd64:-".*typeAssert"
    26  		t.Z()
    27  	}
    28  }
    29  
    30  type Ig[T any] interface {
    31  	G() T
    32  }
    33  
    34  func swGYZ[T any](a Ig[T]) {
    35  	switch t := a.(type) {
    36  	case Iy: // amd64:-".*typeAssert"
    37  		t.Y()
    38  	case Iz: // amd64:-".*typeAssert"
    39  		t.Z()
    40  	case interface{ G() T }: // amd64:-".*typeAssert",-".*assertE2I\\(",".*assertE2I2"
    41  		t.G()
    42  	}
    43  }
    44  
    45  func swE2G[T any](a any) {
    46  	switch t := a.(type) {
    47  	case Iy:
    48  		t.Y()
    49  	case Ig[T]: // amd64:-".*assertE2I\\(",".*assertE2I2"
    50  		t.G()
    51  	}
    52  }
    53  
    54  func swI2G[T any](a Ix) {
    55  	switch t := a.(type) {
    56  	case Iy:
    57  		t.Y()
    58  	case Ig[T]: // amd64:-".*assertE2I\\(",".*assertE2I2"
    59  		t.G()
    60  	}
    61  }
    62  
    63  func swCaller() {
    64  	swGYZ[int]((Ig[int])(nil))
    65  	swE2G[int]((Ig[int])(nil))
    66  	swI2G[int]((Ix)(nil))
    67  }
    68  

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