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author | TomSweeneyRedHat <tsweeney@redhat.com> | 2020-01-14 14:46:46 -0500 |
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committer | TomSweeneyRedHat <tsweeney@redhat.com> | 2020-01-14 14:46:46 -0500 |
commit | f5bda9994d5e6cb1ee42ade5e7786059feedf633 (patch) | |
tree | 4473a0c3b4615ee58165f06ccf57a1bfe4298fe9 /vendor/github.com/pkg/errors/stack.go | |
parent | 564bd693cae4e8a870be7a7860ef673e793f6358 (diff) | |
download | podman-f5bda9994d5e6cb1ee42ade5e7786059feedf633.tar.gz podman-f5bda9994d5e6cb1ee42ade5e7786059feedf633.tar.bz2 podman-f5bda9994d5e6cb1ee42ade5e7786059feedf633.zip |
Bump to Buildah v1.13.1
Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
Diffstat (limited to 'vendor/github.com/pkg/errors/stack.go')
-rw-r--r-- | vendor/github.com/pkg/errors/stack.go | 58 |
1 files changed, 44 insertions, 14 deletions
diff --git a/vendor/github.com/pkg/errors/stack.go b/vendor/github.com/pkg/errors/stack.go index 2874a048c..779a8348f 100644 --- a/vendor/github.com/pkg/errors/stack.go +++ b/vendor/github.com/pkg/errors/stack.go @@ -5,10 +5,13 @@ import ( "io" "path" "runtime" + "strconv" "strings" ) // Frame represents a program counter inside a stack frame. +// For historical reasons if Frame is interpreted as a uintptr +// its value represents the program counter + 1. type Frame uintptr // pc returns the program counter for this frame; @@ -37,6 +40,15 @@ func (f Frame) line() int { return line } +// name returns the name of this function, if known. +func (f Frame) name() string { + fn := runtime.FuncForPC(f.pc()) + if fn == nil { + return "unknown" + } + return fn.Name() +} + // Format formats the frame according to the fmt.Formatter interface. // // %s source file @@ -54,22 +66,16 @@ func (f Frame) Format(s fmt.State, verb rune) { 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) - } + io.WriteString(s, f.name()) + io.WriteString(s, "\n\t") + io.WriteString(s, f.file()) default: io.WriteString(s, path.Base(f.file())) } case 'd': - fmt.Fprintf(s, "%d", f.line()) + io.WriteString(s, strconv.Itoa(f.line())) case 'n': - name := runtime.FuncForPC(f.pc()).Name() - io.WriteString(s, funcname(name)) + io.WriteString(s, funcname(f.name())) case 'v': f.Format(s, 's') io.WriteString(s, ":") @@ -77,6 +83,16 @@ func (f Frame) Format(s fmt.State, verb rune) { } } +// MarshalText formats a stacktrace Frame as a text string. The output is the +// same as that of fmt.Sprintf("%+v", f), but without newlines or tabs. +func (f Frame) MarshalText() ([]byte, error) { + name := f.name() + if name == "unknown" { + return []byte(name), nil + } + return []byte(fmt.Sprintf("%s %s:%d", name, f.file(), f.line())), nil +} + // StackTrace is stack of Frames from innermost (newest) to outermost (oldest). type StackTrace []Frame @@ -94,16 +110,30 @@ func (st StackTrace) Format(s fmt.State, verb rune) { switch { case s.Flag('+'): for _, f := range st { - fmt.Fprintf(s, "\n%+v", f) + io.WriteString(s, "\n") + f.Format(s, verb) } case s.Flag('#'): fmt.Fprintf(s, "%#v", []Frame(st)) default: - fmt.Fprintf(s, "%v", []Frame(st)) + st.formatSlice(s, verb) } case 's': - fmt.Fprintf(s, "%s", []Frame(st)) + st.formatSlice(s, verb) + } +} + +// formatSlice will format this StackTrace into the given buffer as a slice of +// Frame, only valid when called with '%s' or '%v'. +func (st StackTrace) formatSlice(s fmt.State, verb rune) { + io.WriteString(s, "[") + for i, f := range st { + if i > 0 { + io.WriteString(s, " ") + } + f.Format(s, verb) } + io.WriteString(s, "]") } // stack represents a stack of program counters. |