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go.tools/ssa/interp: improve print() on interfaces, and log message for panic.

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R=gri
CC=golang-dev
https://golang.org/cl/21960043
This commit is contained in:
Alan Donovan 2013-11-05 13:03:14 -05:00
parent ce321e34d0
commit d84d338a42
3 changed files with 7 additions and 1 deletions
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2
ssa/interp/interp.go
View File

@ -547,7 +547,7 @@ func runFrame(fr *frame) {
fr.panicking = true fr.panicking = true
fr.panic = recover() fr.panic = recover()
if fr.i.mode&EnableTracing != 0 { if fr.i.mode&EnableTracing != 0 {
fmt.Fprintf(os.Stderr, "Panicking: %s.\n", fr.panic) fmt.Fprintf(os.Stderr, "Panicking: %T %v.\n", fr.panic, fr.panic)
} }
fr.runDefers() fr.runDefers()
fr.block = fr.fn.Recover // recovered panic fr.block = fr.fn.Recover // recovered panic

4
ssa/interp/ops.go
View File

@ -23,6 +23,10 @@ type targetPanic struct {
v value v value
} }
func (p targetPanic) String() string {
return toString(p.v)
}
// If the target program calls exit, the interpreter panics with this type. // If the target program calls exit, the interpreter panics with this type.
type exitPanic int type exitPanic int

2
ssa/interp/value.go
View File

@ -395,7 +395,9 @@ func toWriter(w io.Writer, v value) {
} }
case iface: case iface:
fmt.Fprintf(w, "(%s, ", v.t)
toWriter(w, v.v) toWriter(w, v.v)
io.WriteString(w, ")")
case structure: case structure:
io.WriteString(w, "{") io.WriteString(w, "{")