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digitalmars.D.learn - Query Parser Callstack

reply =?UTF-8?B?Ik5vcmRsw7Z3Ig==?= <per.nordlow gmail.com> writes:
Are there some nice traits or internals to query the current call 
stack for address or perhaps even their (mangled) names. I'm 
mostly interested in using this to detect infinite recursions in 
my recursive descent parser. This provided that my parser slice 
hasn't changed since last call to the same function.
Sep 01 2014
next sibling parent "Kagamin" <spam here.lot> writes:
You can try to create an exception and get stack trace from it. 
The functionality is in druntime.
Sep 02 2014
prev sibling parent reply "Gary Willoughby" <dev nomad.so> writes:
On Monday, 1 September 2014 at 21:00:46 UTC, Nordlöw wrote:

 Are there some nice traits or internals to query the current 
 call stack for address or perhaps even their (mangled) names. 
 I'm mostly interested in using this to detect infinite 
 recursions in my recursive descent parser. This provided that 
 my parser slice hasn't changed since last call to the same 
 function.


I've no idea how it is used but '_d_traceContext' might be of use:

import std.stdio;

int foo(int n)
{
	writefln("&foo: 0x%X", &foo);
	writefln("%s", _d_traceContext(&foo));

	return n;
}

extern(C) Throwable.TraceInfo _d_traceContext(void* ptr = null);

void main(string[] args)
{
	auto x = foo(100);
}

Found in object_.d in the druntime repo.
Sep 02 2014
parent =?UTF-8?B?Ik5vcmRsw7Z3Ig==?= <per.nordlow gmail.com> writes:
On Tuesday, 2 September 2014 at 18:10:19 UTC, Gary Willoughby 
wrote:

 I've no idea how it is used but '_d_traceContext' might be of 
 use:


Ok, thanks. I just realized that 
http://code.dlang.org/packages/backtrace-d might be of use here 
aswell.
Sep 02 2014