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terminal/command: stack command panics when stack has 1 frame

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Insure that the digits function always returns at least 1.

Fixes #354 (partial)
This commit is contained in:
aarzilli 2016-01-27 13:33:37 +01:00
parent 6c7ad4059b
commit b94e2bd0ec
2 changed files with 9 additions and 0 deletions
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3
terminal/command.go
View File

@ -819,6 +819,9 @@ func (c *Commands) sourceCommand(t *Term, args string) error {
}
func digits(n int) int {
if n <= 0 {
return 1
}
return int(math.Floor(math.Log10(float64(n)))) + 1
}

6
terminal/command_test.go
View File

@ -6,6 +6,7 @@ import (
"testing"
"github.com/derekparker/delve/proc/test"
"github.com/derekparker/delve/service/api"
)
func TestCommandDefault(t *testing.T) {
@ -98,3 +99,8 @@ func TestExecuteFile(t *testing.T) {
t.Fatalf("Wrong counts break: %d trace: %d\n", breakCount, traceCount)
}
}
func TestIssue354(t *testing.T) {
printStack([]api.Stackframe{ }, "")
printStack([]api.Stackframe{{api.Location{PC: 0, File: "irrelevant.go", Line: 10, Function: nil}, nil, nil}}, "")
}