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wrappers.go
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wrappers.go
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/*
* Copyright (c) 2021-present Fabien Potencier <[email protected]>
*
* This file is part of Symfony CLI project
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package dumper
import (
"bytes"
"io"
"os"
"path/filepath"
"reflect"
"runtime"
"strings"
)
func lastCaller() string {
var pcs [5]uintptr
runtime.Callers(2, pcs[:])
lastCaller := ""
for _, pc := range pcs {
fn := runtime.FuncForPC(pc - 1)
if fn == nil {
return ""
}
name := fn.Name()
if strings.HasPrefix(name, "runtime") {
break
}
lastPackage := filepath.Base(name)
if pos := strings.Index(lastPackage, "."); pos != -1 {
lastPackage = lastPackage[:pos]
}
lastCaller = filepath.Join(filepath.Dir(name), lastPackage)
if strings.Contains(name, "/dumper") && !strings.Contains(name, ".(*DumperSuite)") {
continue
} else if strings.Contains(name, "/console.Dump") {
continue
}
break
}
return lastCaller
}
func fdump(out io.Writer, styles map[string]string, values ...interface{}) {
for i, value := range values {
if i > 0 {
out.Write([]byte("\n"))
}
state := state{
styles: styles,
pointers: mapPointers(reflect.ValueOf(value)),
comments: []string{},
w: out,
lastCaller: lastCaller(),
}
state.Dump(value)
}
}
// Fdump prints to the writer the value with indentation.
func Fdump(out io.Writer, values ...interface{}) {
fdump(out, defaultStyles, values...)
out.Write([]byte("\n"))
}
// Sdump dumps the values into a string with indentation.
func Sdump(values ...interface{}) string {
buf := &bytes.Buffer{}
buf.Reset()
fdump(buf, defaultStyles, values...)
return buf.String()
}
// FdumpColor prints to the writer the value with indentation and color.
func FdumpColor(out io.Writer, values ...interface{}) {
fdump(out, colorStyles, values...)
out.Write([]byte("\n"))
}
// Prints to given output the value(s) that is (are) passed as the argument(s)
// with formatting, indentation and potentially colors
// Pointers are dereferenced.
func defaultDump(values ...interface{}) {
Fdump(os.Stdout, values...)
}
// Dump points to the default dumper
var Dump = defaultDump