On Sat, Sep 14, 2013 at 07:34:26PM +0200, Adam D. Ruppe wrote:
> On Saturday, 14 September 2013 at 12:25:44 UTC, Paolo Invernizzi
> wrote:
> >Give me a way to writeln the callstack frames at a certain
>
> Challenge accepted:
>
>
> import std.stdio;
>
> string getStackTrace() {
> import core.runtime;
>
> version(Posix) {
> // druntime cuts out the first few functions on the trace as
> they are internal
> // so we'll make some dummy functions here so our actual
> info doesn't get cut
> Throwable.TraceInfo f5() { return defaultTraceHandler(); }
> Throwable.TraceInfo f4() { return f5(); }
> Throwable.TraceInfo f3() { return f4(); }
> Throwable.TraceInfo f2() { return f3(); }
> auto stuff = f2();
> } else {
> auto stuff = defaultTraceHandler();
> }
>
> return stuff.toString();
> }
>
>
> void foo() {
> writeln("on foo");
> bar();
> }
>
> void bar() {
> writeln("on bar");
> omg();
> }
>
> void omg() {
> writeln("on omg");
>
> writeln(getStackTrace());
> }
>
> void main() {
> omg();
>
> writeln("\n****\n");
> foo();
> }
Whoa.
My hats off to you, sir!!
(And yes, I did actually test this code with a few call trees of my own.
It really does work! Amazing.)
I'm gonna put this into my personal D library, right now!
T
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