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// Copyright 2012 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 build
import (
"fmt"
"io"
"reflect"
"golang.org/x/text/internal/colltab"
)
// table is an intermediate structure that roughly resembles the table in collate.
type table struct {
colltab.Table
trie trie
root *trieHandle
}
// print writes the table as Go compilable code to w. It prefixes the
// variable names with name. It returns the number of bytes written
// and the size of the resulting table.
func (t *table) fprint(w io.Writer, name string) (n, size int, err error) {
update := func(nn, sz int, e error) {
n += nn
if err == nil {
err = e
}
size += sz
}
// Write arrays needed for the structure.
update(printColElems(w, t.ExpandElem, name+"ExpandElem"))
update(printColElems(w, t.ContractElem, name+"ContractElem"))
update(t.trie.printArrays(w, name))
update(printArray(t.ContractTries, w, name))
nn, e := fmt.Fprintf(w, "// Total size of %sTable is %d bytes\n", name, size)
update(nn, 0, e)
return
}
func (t *table) fprintIndex(w io.Writer, h *trieHandle, id string) (n int, err error) {
p := func(f string, a ...interface{}) {
nn, e := fmt.Fprintf(w, f, a...)
n += nn
if err == nil {
err = e
}
}
p("\t{ // %s\n", id)
p("\t\tlookupOffset: 0x%x,\n", h.lookupStart)
p("\t\tvaluesOffset: 0x%x,\n", h.valueStart)
p("\t},\n")
return
}
func printColElems(w io.Writer, a []uint32, name string) (n, sz int, err error) {
p := func(f string, a ...interface{}) {
nn, e := fmt.Fprintf(w, f, a...)
n += nn
if err == nil {
err = e
}
}
sz = len(a) * int(reflect.TypeOf(uint32(0)).Size())
p("// %s: %d entries, %d bytes\n", name, len(a), sz)
p("var %s = [%d]uint32 {", name, len(a))
for i, c := range a {
switch {
case i%64 == 0:
p("\n\t// Block %d, offset 0x%x\n", i/64, i)
case (i%64)%6 == 0:
p("\n\t")
}
p("0x%.8X, ", c)
}
p("\n}\n\n")
return
}
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