[refactor] Introduce a TruncationBudget for assertion truncation#14652
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[refactor] Introduce a TruncationBudget for assertion truncation#14652Pierre-Sassoulas wants to merge 1 commit into
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Bundle the (max_lines, max_chars) pair that the truncation machinery passes around into a small frozen, keyword-only TruncationBudget. _get_truncation_parameters now returns (should_truncate, budget) and _truncate_explanation takes the budget directly. Keyword-only construction means the two limits can never be silently swapped at a call site. The budget carries the truncation_limit_lines / truncation_limit_chars ini values verbatim — positive bounds the dimension, 0 leaves it unbounded — so there is no extra sentinel translation. Pure refactor: truncation behaviour, footer wording and hidden-line count are unchanged.
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Proposal of refactor prior to #14523 where a lot of truncation budget will be passed around in assertion generator.
Bundle the (max_lines, max_chars) pair that the truncation machinery passes around into a small frozen, keyword-only TruncationBudget. _get_truncation_parameters now returns (should_truncate, budget) and _truncate_explanation takes the budget directly. Keyword-only construction means the two limits can never be silently swapped at a call site.
The budget carries the truncation_limit_lines / truncation_limit_chars ini values verbatim — positive bounds the dimension, 0 leaves it unbounded — so there is no extra sentinel translation. Pure refactor: truncation behaviour, footer wording and hidden-line count are unchanged.