}
	return lookupFieldOrMethod(T, addressable, pkg, name, false)
}

// lookupFieldOrMethod is like LookupFieldOrMethod but with the additional foldCase parameter
// (see Object.sameId for the meaning of foldCase).
func lookupFieldOrMethod(T Type, addressable bool, pkg *Package, name string, foldCase bool) (obj Object, index []int, indirect bool) {
	// Methods cannot be associated to a named pointer type.

	}
	return lookupFieldOrMethod(T, addressable, pkg, name, false)
}

// lookupFieldOrMethod is like LookupFieldOrMethod but with the additional foldCase parameter
// (see Object.sameId for the meaning of foldCase).
func lookupFieldOrMethod(T Type, addressable bool, pkg *Package, name string, foldCase bool) (obj Object, index []int, indirect bool) {
	// Methods cannot be associated to a named pointer type.

	f.nullable = false
	i := &c.p.Inst[f.i]
	i.Rune = r
	flags &= FoldCase // only relevant flag is FoldCase
	if len(r) != 1 || unicode.SimpleFold(r[0]) == r[0] {
		// and sometimes not even that
		flags &^= FoldCase
	}
	i.Arg = uint32(flags)
	f.out = makePatchList(f.i << 1)

	// Special cases for exec machine.
	switch {
	case flags&FoldCase == 0 && (len(r) == 1 || len(r) == 2 && r[0] == r[1]):
		i.Op = InstRune1

	if i.op() != InstRune || len(i.Rune) != 1 {
		return "", i.Op == InstMatch
	}

	// Have prefix; gather characters.
	var buf strings.Builder
	for i.op() == InstRune && len(i.Rune) == 1 && Flags(i.Arg)&FoldCase == 0 && i.Rune[0] != utf8.RuneError {
		buf.WriteRune(i.Rune[0])
		i = p.skipNop(i.Out)
	}
	return buf.String(), i.Op == InstMatch
}

// StartCond returns the leading empty-width conditions that must

		return "", i.Op == syntax.InstMatch, uint32(p.Start)
	}

	// Have prefix; gather characters.
	var buf strings.Builder
	for iop(i) == syntax.InstRune && len(i.Rune) == 1 && syntax.Flags(i.Arg)&syntax.FoldCase == 0 && i.Rune[0] != utf8.RuneError {
		buf.WriteRune(i.Rune[0])
		pc, i = i.Out, &p.Inst[i.Out]
	}
	if i.Op == syntax.InstEmptyWidth &&
		syntax.EmptyOp(i.Arg)&syntax.EmptyEndText != 0 &&

	p.numRunes += len(re.Rune)
	if re.Op == OpCharClass && len(re.Rune) == 2 && re.Rune[0] == re.Rune[1] {
		// Single rune.
		if p.maybeConcat(re.Rune[0], p.flags&^FoldCase) {
			return nil
		}
		re.Op = OpLiteral
		re.Rune = re.Rune[:1]
		re.Flags = p.flags &^ FoldCase
	} else if re.Op == OpCharClass && len(re.Rune) == 4 &&
		re.Rune[0] == re.Rune[1] && re.Rune[2] == re.Rune[3] &&
		unicode.SimpleFold(re.Rune[0]) == re.Rune[2] &&

	}
}

// methodIndex returns the index of the method with the given name.
// If foldCase is set, capitalization in the name is ignored.
// The result is negative if no such method exists.
func (t *Named) methodIndex(name string, foldCase bool) int {
	if name == "_" {
		return -1
	}
	if foldCase {
		for i, m := range t.methods {
			if strings.EqualFold(m.name, name) {
				return i
			}
		}

	}
}

// methodIndex returns the index of the method with the given name.
// If foldCase is set, capitalization in the name is ignored.
// The result is negative if no such method exists.
func (t *Named) methodIndex(name string, foldCase bool) int {
	if name == "_" {
		return -1
	}
	if foldCase {
		for i, m := range t.methods {
			if strings.EqualFold(m.name, name) {
				return i
			}
		}

	setParent(*Scope)

	// sameId reports whether obj.Id() and Id(pkg, name) are the same.
	// If foldCase is true, names are considered equal if they are equal with case folding
	// and their packages are ignored (e.g., pkg1.m, pkg1.M, pkg2.m, and pkg2.M are all equal).
	sameId(pkg *Package, name string, foldCase bool) bool

	// scopePos returns the start position of the scope of this Object
	scopePos() syntax.Pos

	setParent(*Scope)

	// sameId reports whether obj.Id() and Id(pkg, name) are the same.
	// If foldCase is true, names are considered equal if they are equal with case folding
	// and their packages are ignored (e.g., pkg1.m, pkg1.M, pkg2.m, and pkg2.M are all equal).
	sameId(pkg *Package, name string, foldCase bool) bool

	// scopePos returns the start position of the scope of this Object
	scopePos() token.Pos