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lib/eigen.eigs accepts an unterminated f-string that the runtime rejects

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
88/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Active
Tech stack
c

Research direction

Start with the f-string handling in lib/eigen.eigs and compare its behavior with the C lexer. Add the parity case to tests/test_meta_parity.eigs for the unterminated literal, then run that test to confirm both implementations reject it.

Written by the indexing model from the issue text.

Description

area:stdlib found-by:code-review kind:silent-wrong

Found by /code-review on PR #1324, and pre-existing on main.

The meta-circular interpreter lib/eigen.eigs (#306) accepts an unterminated f-string literal: f"a{1} evaluates to "a1". The C runtime rejects it with an unterminated-string error.

Done when

  • lib/eigen.eigs rejects an unterminated f-string the way the C lexer does.
  • A case in tests/test_meta_parity.eigs shows both implementations reject it.
Dominant language
C
Stars
3
Forks
7
Avg merge
4h 15m
Merged PRs (30d)
106

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