Merges translation functions into translate.go.
Runs gofmt on code.
This commit is contained in:
jimt
parent
5f066faee3
commit
b6af78b318
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@ -1,37 +1,37 @@
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// This work is subject to the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
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// license. Its contents can be found at:
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// http://creativecommons.org/publicdomain/zero/1.0/
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package main
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import (
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"fmt"
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"io"
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)
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var newline = []byte{'\n'}
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type ByteWriter struct {
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io.Writer
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c int
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}
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func (w *ByteWriter) Write(p []byte) (n int, err error) {
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if len(p) == 0 {
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return
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}
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for n = range p {
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if w.c%12 == 0 {
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w.Writer.Write(newline)
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w.c = 0
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}
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fmt.Fprintf(w.Writer, "0x%02x,", p[n])
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w.c++
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}
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n++
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return
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}
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package main
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import (
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"fmt"
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"io"
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)
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var newline = []byte{'\n'}
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type ByteWriter struct {
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io.Writer
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c int
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}
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func (w *ByteWriter) Write(p []byte) (n int, err error) {
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if len(p) == 0 {
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return
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}
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for n = range p {
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if w.c%12 == 0 {
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w.Writer.Write(newline)
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w.c = 0
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}
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fmt.Fprintf(w.Writer, "0x%02x,", p[n])
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w.c++
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}
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n++
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return
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}
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@ -1,37 +1,37 @@
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// This work is subject to the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
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// license. Its contents can be found at:
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// http://creativecommons.org/publicdomain/zero/1.0/
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package main
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import (
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"fmt"
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"io"
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)
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var line = []byte("\"+\n\"")
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type StringWriter struct {
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io.Writer
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c int
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}
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func (w *StringWriter) Write(p []byte) (n int, err error) {
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if len(p) == 0 {
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return
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}
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for n = range p {
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if w.c%16 == 0 {
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w.Writer.Write(line)
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w.c = 0
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}
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fmt.Fprintf(w.Writer, "\\x%02x", p[n])
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w.c++
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}
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n++
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return
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}
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package main
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import (
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"fmt"
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"io"
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)
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var line = []byte("\"+\n\"")
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type StringWriter struct {
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io.Writer
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c int
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}
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func (w *StringWriter) Write(p []byte) (n int, err error) {
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if len(p) == 0 {
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return
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}
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for n = range p {
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if w.c%16 == 0 {
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w.Writer.Write(line)
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w.c = 0
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}
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fmt.Fprintf(w.Writer, "\\x%02x", p[n])
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w.c++
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}
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n++
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return
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}
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131
translate.go
131
translate.go
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@ -4,7 +4,11 @@
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package main
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import "io"
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import (
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"compress/gzip"
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"fmt"
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"io"
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)
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// translate translates the input file to go source code.
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func translate(input io.Reader, output io.Writer, pkgname, funcname string, uncompressed, nomemcpy bool) {
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@ -22,3 +26,128 @@ func translate(input io.Reader, output io.Writer, pkgname, funcname string, unco
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}
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}
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}
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// input -> gzip -> gowriter -> output.
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func translate_memcpy_comp(input io.Reader, output io.Writer, pkgname, funcname string) {
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fmt.Fprintf(output, `package %s
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import (
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"bytes"
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"compress/gzip"
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"io"
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)
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// %s returns raw, uncompressed file data.
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func %s() []byte {
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gz, err := gzip.NewReader(bytes.NewBuffer([]byte{`, pkgname, funcname, funcname)
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gz := gzip.NewWriter(&ByteWriter{Writer: output})
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io.Copy(gz, input)
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gz.Close()
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fmt.Fprint(output, `
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}))
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if err != nil {
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panic("Decompression failed: " + err.Error())
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}
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var b bytes.Buffer
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io.Copy(&b, gz)
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gz.Close()
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return b.Bytes()
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}`)
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}
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// input -> gzip -> gowriter -> output.
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func translate_memcpy_uncomp(input io.Reader, output io.Writer, pkgname, funcname string) {
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fmt.Fprintf(output, `package %s
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// %s returns raw file data.
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func %s() []byte {
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return []byte{`, pkgname, funcname, funcname)
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io.Copy(&ByteWriter{Writer: output}, input)
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fmt.Fprint(output, `
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}
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}`)
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}
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// input -> gzip -> gowriter -> output.
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func translate_nomemcpy_comp(input io.Reader, output io.Writer, pkgname, funcname string) {
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fmt.Fprintf(output, `package %s
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import (
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"bytes"
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"compress/gzip"
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"io"
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"reflect"
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"unsafe"
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)
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var _%s = "`, pkgname, funcname)
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gz := gzip.NewWriter(&StringWriter{Writer: output})
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io.Copy(gz, input)
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gz.Close()
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fmt.Fprintf(output, `"
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// %s returns raw, uncompressed file data.
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func %s() []byte {
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var empty [0]byte
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sx := (*reflect.StringHeader)(unsafe.Pointer(&_%s))
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b := empty[:]
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bx := (*reflect.SliceHeader)(unsafe.Pointer(&b))
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bx.Data = sx.Data
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bx.Len = len(_%s)
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bx.Cap = bx.Len
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gz, err := gzip.NewReader(bytes.NewBuffer(b))
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if err != nil {
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panic("Decompression failed: " + err.Error())
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}
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var buf bytes.Buffer
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io.Copy(&buf, gz)
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gz.Close()
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return buf.Bytes()
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}
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`, funcname, funcname, funcname, funcname)
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}
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// input -> gowriter -> output.
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func translate_nomemcpy_uncomp(input io.Reader, output io.Writer, pkgname, funcname string) {
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fmt.Fprintf(output, `package %s
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import (
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"reflect"
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"unsafe"
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)
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var _%s = "`, pkgname, funcname)
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io.Copy(&StringWriter{Writer: output}, input)
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fmt.Fprintf(output, `"
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// %s returns raw file data.
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//
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// WARNING: The returned byte slice is READ-ONLY.
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// Attempting to alter the slice contents will yield a runtime panic.
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func %s() []byte {
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var empty [0]byte
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sx := (*reflect.StringHeader)(unsafe.Pointer(&_%s))
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b := empty[:]
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bx := (*reflect.SliceHeader)(unsafe.Pointer(&b))
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bx.Data = sx.Data
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bx.Len = len(_%s)
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bx.Cap = bx.Len
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return b
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}
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`, funcname, funcname, funcname, funcname)
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}
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@ -1,44 +0,0 @@
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// This work is subject to the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
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// license. Its contents can be found at:
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// http://creativecommons.org/publicdomain/zero/1.0/
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package main
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import (
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"compress/gzip"
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"fmt"
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"io"
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)
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// input -> gzip -> gowriter -> output.
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func translate_memcpy_comp(input io.Reader, output io.Writer, pkgname, funcname string) {
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fmt.Fprintf(output, `package %s
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import (
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"bytes"
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"compress/gzip"
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"io"
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)
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// %s returns raw, uncompressed file data.
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func %s() []byte {
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gz, err := gzip.NewReader(bytes.NewBuffer([]byte{`, pkgname, funcname, funcname)
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gz := gzip.NewWriter(&ByteWriter{Writer: output})
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io.Copy(gz, input)
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gz.Close()
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fmt.Fprint(output, `
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}))
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if err != nil {
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panic("Decompression failed: " + err.Error())
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}
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var b bytes.Buffer
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io.Copy(&b, gz)
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gz.Close()
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return b.Bytes()
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}`)
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}
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@ -1,25 +0,0 @@
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// This work is subject to the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
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// license. Its contents can be found at:
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// http://creativecommons.org/publicdomain/zero/1.0/
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package main
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import (
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"fmt"
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"io"
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)
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// input -> gzip -> gowriter -> output.
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func translate_memcpy_uncomp(input io.Reader, output io.Writer, pkgname, funcname string) {
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fmt.Fprintf(output, `package %s
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// %s returns raw file data.
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func %s() []byte {
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return []byte{`, pkgname, funcname, funcname)
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io.Copy(&ByteWriter{Writer: output}, input)
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fmt.Fprint(output, `
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}
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}`)
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}
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@ -1,56 +0,0 @@
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// This work is subject to the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
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// license. Its contents can be found at:
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// http://creativecommons.org/publicdomain/zero/1.0/
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package main
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import (
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"compress/gzip"
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"fmt"
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"io"
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)
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// input -> gzip -> gowriter -> output.
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func translate_nomemcpy_comp(input io.Reader, output io.Writer, pkgname, funcname string) {
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fmt.Fprintf(output, `package %s
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import (
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"bytes"
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"compress/gzip"
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"io"
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"reflect"
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"unsafe"
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)
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var _%s = "`, pkgname, funcname)
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gz := gzip.NewWriter(&StringWriter{Writer: output})
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io.Copy(gz, input)
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gz.Close()
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fmt.Fprintf(output, `"
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// %s returns raw, uncompressed file data.
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func %s() []byte {
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var empty [0]byte
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sx := (*reflect.StringHeader)(unsafe.Pointer(&_%s))
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b := empty[:]
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bx := (*reflect.SliceHeader)(unsafe.Pointer(&b))
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bx.Data = sx.Data
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bx.Len = len(_%s)
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bx.Cap = bx.Len
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gz, err := gzip.NewReader(bytes.NewBuffer(b))
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if err != nil {
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panic("Decompression failed: " + err.Error())
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}
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var buf bytes.Buffer
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io.Copy(&buf, gz)
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gz.Close()
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return buf.Bytes()
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}
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`, funcname, funcname, funcname, funcname)
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}
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@ -1,42 +0,0 @@
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// This work is subject to the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
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// license. Its contents can be found at:
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// http://creativecommons.org/publicdomain/zero/1.0/
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package main
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import (
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"fmt"
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"io"
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)
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// input -> gowriter -> output.
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func translate_nomemcpy_uncomp(input io.Reader, output io.Writer, pkgname, funcname string) {
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fmt.Fprintf(output, `package %s
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import (
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"reflect"
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"unsafe"
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)
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var _%s = "`, pkgname, funcname)
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io.Copy(&StringWriter{Writer: output}, input)
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fmt.Fprintf(output, `"
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// %s returns raw file data.
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//
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// WARNING: The returned byte slice is READ-ONLY.
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// Attempting to alter the slice contents will yield a runtime panic.
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func %s() []byte {
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var empty [0]byte
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sx := (*reflect.StringHeader)(unsafe.Pointer(&_%s))
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b := empty[:]
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bx := (*reflect.SliceHeader)(unsafe.Pointer(&b))
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bx.Data = sx.Data
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bx.Len = len(_%s)
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bx.Cap = bx.Len
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return b
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}
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`, funcname, funcname, funcname, funcname)
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}
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