Source-map segment lookup
A line number alone does not identify the original instruction. MapAperture is a Windows coding client for examining source-map consumers with an AI conversation and reviewing how generated positions are resolved.
def locate(segments, column):
candidates = [s for s in segments if s[0] <= column]
if not candidates:
return None
return max(candidates, key=lambda s: s[0])[1]- Connection
- Base URL, credentials and a reachable server.
- Project
- Check a column before the first segment and an explicitly unmapped segment, returning no location instead of borrowing a mapping from another line.
- Review before applying
- Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
def locate(segments, column):
candidates = [s for s in segments if s[0] <= column]
if not candidates:
return None
return max(candidates, key=lambda s: s[0])[1]Bring a generated-code failure back to its source context
A stack trace from generated code often points somewhere different from the file you need to edit. MapAperture gives you a Windows coding workspace to discuss that gap with a connected model and the relevant project files. Start with the failing location, the build that produced it and the matching source artifacts. Ask for evidence connecting the reported symptom to the proposed source location.
A source-map segment lookup is one example you can investigate. The short sample suggests selecting an applicable segment, but a real task also needs the surrounding format and caller's expectations. You could ask the assistant to examine how an unmapped location is handled before proposing a fix. MapAperture does not claim a built-in source-map debugger or automatic reconstruction of missing build artifacts.
Select an abliterated AI model if available through your supported OpenAI-compatible or Anthropic connection, supplying credentials when necessary. The model and server determine context limits, tools and restrictions. Compare the proposed source edit with the evidence, rebuild through your project's normal process and reproduce the original failure. Check the resulting artifact as well as the source so a stale build does not obscure the outcome.
Working from generated output
- What should accompany a generated stack trace?
Include the relevant build identifier, generated location and matching source or mapping artifact when available. Explain how the failure was reproduced. A trace from one build combined with a map from another can lead the investigation astray.
- What if no source location can be established?
Keep that uncertainty explicit and inspect the build artifacts or mapping configuration. Ask for missing evidence instead of treating a guessed file as the cause. The sample lookup does not establish complete support for every source-map format.
- Should I patch the generated file directly?
First determine which source and build step produce it. A direct edit may disappear on the next build. Review the intended source correction, rebuild normally and check whether the new output resolves the observed failure.
- Can a local model retrieve missing build artifacts?
Do not assume artifact access from model location. Tools and permissions determine access. A local endpoint requires a separate server and does not make all tools local; provide only the artifacts needed through connections you have reviewed.
MapAperture · Updated 2026-10-25
