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// Copyright 2021 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 generator
import (
"bytes"
"fmt"
)
// pointerparm describes a parameter of pointer type; it implements the
// "parm" interface.
type pointerparm struct {
tag string
totype parm
isBlank
addrTakenHow
isGenValFunc
skipCompare
}
func (p pointerparm) Declare(b *bytes.Buffer, prefix string, suffix string, caller bool) {
n := p.totype.TypeName()
if caller {
n = p.totype.QualName()
}
b.WriteString(fmt.Sprintf("%s *%s%s", prefix, n, suffix))
}
func (p pointerparm) GenElemRef(elidx int, path string) (string, parm) {
return path, &p
}
func (p pointerparm) GenValue(s *genstate, f *funcdef, value int, caller bool) (string, int) {
pref := ""
if caller {
pref = s.checkerPkg(s.pkidx) + "."
}
var valstr string
valstr, value = s.GenValue(f, p.totype, value, caller)
fname := s.genAllocFunc(p.totype)
return fmt.Sprintf("%s%s(%s)", pref, fname, valstr), value
}
func (p pointerparm) IsControl() bool {
return false
}
func (p pointerparm) NumElements() int {
return 1
}
func (p pointerparm) String() string {
return fmt.Sprintf("*%s", p.totype)
}
func (p pointerparm) TypeName() string {
return fmt.Sprintf("*%s", p.totype.TypeName())
}
func (p pointerparm) QualName() string {
return fmt.Sprintf("*%s", p.totype.QualName())
}
func mkPointerParm(to parm) pointerparm {
var pp pointerparm
pp.tag = "pointer"
pp.totype = to
return pp
}
func (p pointerparm) HasPointer() bool {
return true
}
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