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const NimStackTrace = compileOption("stacktrace")
const NimStackTraceMsgs = compileOption("stacktraceMsgs")
template procName*(): string =
## returns current C/C++ function name
when defined(c) or defined(cpp):
var name {.inject, noinit.}: cstring
{.emit: "`name` = __func__;".}
$name
template getPFrame*(): PFrame =
## avoids a function call (unlike `getFrame()`)
block:
when NimStackTrace:
var framePtr {.inject, noinit.}: PFrame
{.emit: "`framePtr` = &FR_;".}
framePtr
template setFrameMsg*(msg: string, prefix = " ") =
## attach a msg to current `PFrame`. This can be called multiple times
## in a given PFrame. Noop unless passing --stacktraceMsgs and --stacktrace
when NimStackTrace and NimStackTraceMsgs:
block:
var fr {.inject, noinit.}: PFrame
{.emit: "`fr` = &FR_;".}
# consider setting a custom upper limit on size (analog to stack overflow)
frameMsgBuf.setLen fr.frameMsgLen
frameMsgBuf.add prefix
frameMsgBuf.add msg
fr.frameMsgLen += prefix.len + msg.len
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