target.go

     1  // Code generated by "go test -run=Generate -write=all"; DO NOT EDIT.
     2  // Source: ../../cmd/compile/internal/types2/target.go
     3  
     4  // Copyright 2026 The Go Authors. All rights reserved.
     5  // Use of this source code is governed by a BSD-style
     6  // license that can be found in the LICENSE file.
     7  
     8  // This file implements target types for expressions in assignment contexts.
     9  
    10  package types
    11  
    12  // target represents the target type in an assignment context.
    13  type target struct {
    14  	typ Type
    15  	// TODO(gri) desc is only used in Checker.funcInst - do we need it?
    16  	//           (setting/computing desc may be expensive for not being used)
    17  	//           Also, if we keep it, review consistency of description.
    18  	desc string
    19  	hint bool // if set, the target may be used as untyped composite literal hint before Go 1.28
    20  }
    21  
    22  // newTarget creates a new target for the given type and description.
    23  // The result is nil if typ is nil.
    24  func newTarget(typ Type, desc string) *target {
    25  	if typ != nil {
    26  		return &target{typ, desc, false}
    27  	}
    28  	return nil
    29  }
    30  
    31  // newHint is like newTarget but it marks the result as a hint.
    32  func newHint(typ Type, desc string) *target {
    33  	if typ != nil {
    34  		return &target{typ, desc, true}
    35  	}
    36  	return nil
    37  }
    38  
    39  // sig returns the target type T if it is a signature (the result may be its Named or Alias type, if any).
    40  // The result is nil if T is nil or T's type set has no common signature type.
    41  func (T *target) sig() Type {
    42  	if T != nil {
    43  		if u, _ := commonUnder(T.typ, nil); u != nil {
    44  			if _, ok := u.(*Signature); ok {
    45  				return T.typ
    46  			}
    47  		}
    48  	}
    49  	return nil
    50  }
    51  
    52  // String returns a string representation of T, for debugging.
    53  func (T *target) String() string {
    54  	if T != nil {
    55  		return sprintf(nil, nil, true, "target{%s, %q}", T.typ, T.desc)
    56  	}
    57  	return "no target"
    58  }
    59
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