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| Author | SHA1 | Message | Date |
|---|---|---|---|
 Julian Noble
|
cabde42e85 |
punk::ns 0.6.0: cmdtrace -pause flag; nested-switch traceline mismark characterized as upstream (tktview 5d5b1052280c976ea3d4)
cmdtrace gains -pause <bool> (default 1, existing interactive behaviour unchanged): -pause 0 bypasses the "paused - hit enter key to continue" askuser in _cmdtrace_leave so cmdtrace runs unattended and the marked-up traced-body report (return value) can be captured by scripts and tests. Line-mismark investigation (all punk-free raw enterstep probes, results byte-identical on Tcl 8.6.17 / 8.7a6 / 9.0.3 - conclusively upstream): - with the ::switch argdoc available (punk::args::moduledoc::tclcore), cmdtrace marks flat single-block switches and 2-word-form nested switches correctly for EVERY arm; the residual mismarks match the raw trace data - empirical law, predictive across 4 command shapes x 6 arms and deeper nestings: an arm body at index j of the split pattern/body list reports container-relative lines (shift = switch command line within its containing script - 1) exactly when j lands on a LITERAL word of the switch command (options, --, or the block); dynamic words and j beyond the command word count fall back to correct arm-relative attribution. Position-based, not call-order based. Explains the ticket observation that the affected-arm count "varies based on switch options". - suspected machinery: Tcl_SwitchObjCmd passes split-list index j as the TclNREvalObjEx word; TclInitCompileEnv adopts ctx line[word] when the index happens to be in range of a per-word array describing the switch command itself (the splitObjs munging looks intended to prevent this) Artifacts: - new tests ns/cmdtrace.test (5): -pause 0 smoke + error-call count, flat-switch and 2-word-nested correct-mark guards, upstream mismark GAP pins (gated on have_tclcoredocs - cmdtrace arm-offset correction parses supplied switch commands against the ::switch argdoc) - scriptlib/developer/tcl_switch_traceline_repro.tcl: standalone pure-Tcl repro + findings write-up, suitable as an attachment/addition to the upstream ticket - cmdtrace argdoc caveat updated: cites the ticket and the characterized pattern (was "possibly an unreported bug") Verified: punk/ns suite 68/68 under Tcl 9.0.3; cmdtrace.test 5/5 under 8.7. punk::ns buildversion 0.5.0 -> 0.6.0 (new flag = minor); project 0.12.31 + CHANGELOG; tests AGENTS.md index updated. Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com |
2 months ago |