# For this module, Go 1.17 prunes out a (transitive and otherwise-irrelevant)
# requirement on a retracted higher version of a dependency.
# However, when Go 1.16 reads the same requirements from the go.mod file,
# it does not prune out that requirement, and selects the retracted version.
#
# The Go 1.16 module graph looks like:
#
# m ---- lazy v0.1.0 ---- requireincompatible v0.1.0 ---- incompatible v2.0.0+incompatible
# |        |

const (
	OpNoMatch        Op = 1 + iota // matches no strings
	OpEmptyMatch                   // matches empty string
	OpLiteral                      // matches Runes sequence
	OpCharClass                    // matches Runes interpreted as range pair list
	OpAnyCharNotNL                 // matches any character except newline
	OpAnyChar                      // matches any character

replace (
	example.com/a v0.1.0 => ../a
)
-- embed_go122/foo.go --
package main

import (
	"fmt"

	"example.com/a"
)

func main() {
    fmt.Println(a.Str())
}

# matchPotentialSourceFile prunes out tests and unbuilt code.
# Make sure that they are vendored if they are embedded files.
cd ../embed_unbuilt
go mod vendor
cmp vendor/example.com/dep/unbuilt.go dep/unbuilt.go

	EmptyEndLine
	EmptyBeginText
	EmptyEndText
	EmptyWordBoundary
	EmptyNoWordBoundary
)

// EmptyOpContext returns the zero-width assertions
// satisfied at the position between the runes r1 and r2.
// Passing r1 == -1 indicates that the position is
// at the beginning of the text.
// Passing r2 == -1 indicates that the position is
// at the end of the text.
func EmptyOpContext(r1, r2 rune) EmptyOp {

that is, runes. (This differs from C's printf where the
units are always measured in bytes.) Either or both of the flags
may be replaced with the character '*', causing their values to be
obtained from the next operand (preceding the one to format),
which must be of type int.

For most values, width is the minimum number of runes to output,
padding the formatted form with spaces if necessary.

! stderr 'indirecttestnotfound'  # Vendor prunes test dependencies.

cmp go.mod.orig go.mod
! exists vendor


# 'go mod tidy' still logs the errors, but succeeds and updates go.mod.

go mod tidy -e
stderr -count=4 'cannot find module providing package'

// The text itself is stored in a separate buffer; cell only describes the
// segment's size in bytes, its width in runes, and whether it's an htab
// ('\t') terminated cell.
type cell struct {
	size  int  // cell size in bytes
	width int  // cell width in runes
	htab  bool // true if the cell is terminated by an htab ('\t')
}

// A Writer is a filter that inserts padding around tab-delimited

	// is always non-zero if different from info.ccc and that we can return
	// false at this point. This is verified by maketables.
	return false
}

// BoundaryAfter returns true if runes cannot combine with or otherwise
// interact with this or previous runes.
func (p Properties) BoundaryAfter() bool {
	// TODO: loosen these conditions.
	return p.isInert()
}

// We pack quick check data in 4 bits:
//

	// So limit the buffer to 16000 characters. This number was
	// discovered by experimenting with syscall.WriteConsole.
	const maxWrite = 16000
	for len(runes) > 0 {
		m := len(runes)
		if m > maxWrite {
			m = maxWrite
		}
		chunk := runes[:m]
		runes = runes[m:]
		uint16s := utf16.Encode(chunk)
		for len(uint16s) > 0 {
			var written uint32

	// ReturnUnknownFieldPaths will return the paths to fields that are not
	// recognized as part of the schema.
	ReturnUnknownFieldPaths bool
}

// Coerce checks types of embedded ObjectMeta and TypeMeta and prunes unknown fields inside the former.
// It does coerce ObjectMeta and TypeMeta at the root if isResourceRoot is true.
// If opts.ReturnUnknownFieldPaths is true, it will return the paths of any fields that are not a part of the