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authorWim <wim@42.be>2018-08-06 21:47:05 +0200
committerWim <wim@42.be>2018-08-06 21:47:05 +0200
commit51062863a5c34d81e296cf15c61140911037cf3b (patch)
tree9b5e044672486326c7a0ca8fb26430f37bf4d83c /vendor/github.com/pkg/errors/stack.go
parent4fb4b7aa6c02a54db8ad8dd98e4d321396926c0d (diff)
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Use mod vendor for vendored directory (backwards compatible)
Diffstat (limited to 'vendor/github.com/pkg/errors/stack.go')
-rw-r--r--vendor/github.com/pkg/errors/stack.go147
1 files changed, 0 insertions, 147 deletions
diff --git a/vendor/github.com/pkg/errors/stack.go b/vendor/github.com/pkg/errors/stack.go
deleted file mode 100644
index 2874a048..00000000
--- a/vendor/github.com/pkg/errors/stack.go
+++ /dev/null
@@ -1,147 +0,0 @@
-package errors
-
-import (
- "fmt"
- "io"
- "path"
- "runtime"
- "strings"
-)
-
-// Frame represents a program counter inside a stack frame.
-type Frame uintptr
-
-// pc returns the program counter for this frame;
-// multiple frames may have the same PC value.
-func (f Frame) pc() uintptr { return uintptr(f) - 1 }
-
-// file returns the full path to the file that contains the
-// function for this Frame's pc.
-func (f Frame) file() string {
- fn := runtime.FuncForPC(f.pc())
- if fn == nil {
- return "unknown"
- }
- file, _ := fn.FileLine(f.pc())
- return file
-}
-
-// line returns the line number of source code of the
-// function for this Frame's pc.
-func (f Frame) line() int {
- fn := runtime.FuncForPC(f.pc())
- if fn == nil {
- return 0
- }
- _, line := fn.FileLine(f.pc())
- return line
-}
-
-// Format formats the frame according to the fmt.Formatter interface.
-//
-// %s source file
-// %d source line
-// %n function name
-// %v equivalent to %s:%d
-//
-// Format accepts flags that alter the printing of some verbs, as follows:
-//
-// %+s function name and path of source file relative to the compile time
-// GOPATH separated by \n\t (<funcname>\n\t<path>)
-// %+v equivalent to %+s:%d
-func (f Frame) Format(s fmt.State, verb rune) {
- switch verb {
- case 's':
- switch {
- case s.Flag('+'):
- pc := f.pc()
- fn := runtime.FuncForPC(pc)
- if fn == nil {
- io.WriteString(s, "unknown")
- } else {
- file, _ := fn.FileLine(pc)
- fmt.Fprintf(s, "%s\n\t%s", fn.Name(), file)
- }
- default:
- io.WriteString(s, path.Base(f.file()))
- }
- case 'd':
- fmt.Fprintf(s, "%d", f.line())
- case 'n':
- name := runtime.FuncForPC(f.pc()).Name()
- io.WriteString(s, funcname(name))
- case 'v':
- f.Format(s, 's')
- io.WriteString(s, ":")
- f.Format(s, 'd')
- }
-}
-
-// StackTrace is stack of Frames from innermost (newest) to outermost (oldest).
-type StackTrace []Frame
-
-// Format formats the stack of Frames according to the fmt.Formatter interface.
-//
-// %s lists source files for each Frame in the stack
-// %v lists the source file and line number for each Frame in the stack
-//
-// Format accepts flags that alter the printing of some verbs, as follows:
-//
-// %+v Prints filename, function, and line number for each Frame in the stack.
-func (st StackTrace) Format(s fmt.State, verb rune) {
- switch verb {
- case 'v':
- switch {
- case s.Flag('+'):
- for _, f := range st {
- fmt.Fprintf(s, "\n%+v", f)
- }
- case s.Flag('#'):
- fmt.Fprintf(s, "%#v", []Frame(st))
- default:
- fmt.Fprintf(s, "%v", []Frame(st))
- }
- case 's':
- fmt.Fprintf(s, "%s", []Frame(st))
- }
-}
-
-// stack represents a stack of program counters.
-type stack []uintptr
-
-func (s *stack) Format(st fmt.State, verb rune) {
- switch verb {
- case 'v':
- switch {
- case st.Flag('+'):
- for _, pc := range *s {
- f := Frame(pc)
- fmt.Fprintf(st, "\n%+v", f)
- }
- }
- }
-}
-
-func (s *stack) StackTrace() StackTrace {
- f := make([]Frame, len(*s))
- for i := 0; i < len(f); i++ {
- f[i] = Frame((*s)[i])
- }
- return f
-}
-
-func callers() *stack {
- const depth = 32
- var pcs [depth]uintptr
- n := runtime.Callers(3, pcs[:])
- var st stack = pcs[0:n]
- return &st
-}
-
-// funcname removes the path prefix component of a function's name reported by func.Name().
-func funcname(name string) string {
- i := strings.LastIndex(name, "/")
- name = name[i+1:]
- i = strings.Index(name, ".")
- return name[i+1:]
-}