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stacktraces can now show custom runtime msgs per frame (#13351)

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* stacktraces can now show custom runtime msgs
* improve tests/stdlib/tstackframes.nim
* fix test for --gc:arc
* test --stacktraceMsgs:on and --stacktraceMsgs:off
* --stacktracemsgs:off by default
This commit is contained in:
Timothee Cour 2020-03-30 04:45:32 -07:00 • committed by GitHub
commit 19cab9fa51
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14 changed files with 171 additions and 21 deletions
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36
lib/system.nim
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@ -54,6 +54,23 @@ type
include "system/basic_types"
proc compileOption*(option: string): bool {.
magic: "CompileOption", noSideEffect.}
## Can be used to determine an `on|off` compile-time option. Example:
##
## .. code-block:: Nim
## when compileOption("floatchecks"):
## echo "compiled with floating point NaN and Inf checks"
proc compileOption*(option, arg: string): bool {.
magic: "CompileOptionArg", noSideEffect.}
## Can be used to determine an enum compile-time option. Example:
##
## .. code-block:: Nim
## when compileOption("opt", "size") and compileOption("gc", "boehm"):
## echo "compiled with optimization for size and uses Boehm's GC"
{.push warning[GcMem]: off, warning[Uninit]: off.}
{.push hints: off.}
@ -1040,22 +1057,6 @@ const
# emit this flag
# for string literals, it allows for some optimizations.
proc compileOption*(option: string): bool {.
magic: "CompileOption", noSideEffect.}
## Can be used to determine an `on|off` compile-time option. Example:
##
## .. code-block:: Nim
## when compileOption("floatchecks"):
## echo "compiled with floating point NaN and Inf checks"
proc compileOption*(option, arg: string): bool {.
magic: "CompileOptionArg", noSideEffect.}
## Can be used to determine an enum compile-time option. Example:
##
## .. code-block:: Nim
## when compileOption("opt", "size") and compileOption("gc", "boehm"):
## echo "compiled with optimization for size and uses Boehm's GC"
const
hasThreadSupport = compileOption("threads") and not defined(nimscript)
hasSharedHeap = defined(boehmgc) or defined(gogc) # don't share heaps; every thread has its own
@ -1891,6 +1892,7 @@ var
type
PFrame* = ptr TFrame ## Represents a runtime frame of the call stack;
## part of the debugger API.
# keep in sync with nimbase.h `struct TFrame_`
TFrame* {.importc, nodecl, final.} = object ## The frame itself.
prev*: PFrame ## Previous frame; used for chaining the call stack.
procname*: cstring ## Name of the proc that is currently executing.
@ -1898,6 +1900,8 @@ type
filename*: cstring ## Filename of the proc that is currently executing.
len*: int16 ## Length of the inspectable slots.
calldepth*: int16 ## Used for max call depth checking.
when NimStackTraceMsgs:
frameMsgLen*: int ## end position in frameMsgBuf for this frame.
when defined(js):
proc add*(x: var string, y: cstring) {.asmNoStackFrame.} =