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refactor: decompose _type_check_params, _convert_shapes, _set_color_source_vec - #741
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…elpers (#716) Split the 372-line, CCN~164 _type_check_params into 19 module-private _check_* helpers, each validating one parameter group in place; the function is now a flat ordered sequence of calls. Behavior-preserving: the call order (hence the first-raised error for any input) and all param_dict mutations are identical. Verified by a 370-case old-vs-new differential (0 mismatches) and the full non-visual suite (510 passed). Notable: contour_px keeps two checks at their original positions (type before color, range after outline) and _check_contour_px_range re-fetches contour_px from param_dict; the interleaved cmap/palette/groups region stays one helper. Adds a direct order-preservation test (color before contour_px range).
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@## main #741 +/- ##
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+ Coverage 79.31% 79.59% +0.27%
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Files 17 17 Lines 4603 4641 +38 Branches 1030 1029 -1 ==========================================
+ Hits 3651 3694 +43 + Misses 602 598 -4 + Partials 350 349 -1
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…ource_vec (#716) Pull the three self-contained decision blocks out of the 236-line color resolver: _resolve_color_origins (locate + df/table shadowing + multi-origin error), _fetch_color_source_vector (direct-read fast path vs whole-table join), and _resolve_color_table (which table supplies .uns colors). _set_color_source_vec drops 236->171 lines (CCN ~48->~29); the categorical-mapping and output assembly stay inline. Behavior-preserving: verified byte-identical (source_vector, color_vector, categorical) output over 160 cases (element x color-column x palette x groups x render_type); full non-visual suite green (510 passed).
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Closes#716. Decomposes the relocated mega-functions, one commit per function for bisectability.
Commits
_type_check_params(_validate.py, 372 lines / CCN≈164) → 19 module-private_check_*helpers + a flat ordered orchestrator (CCN≈1). Behavior-preserving: call order (first-raised error) and allparam_dictmutations identical.contour_pxkeeps its split type/range checks at their original positions; the interleaved cmap/palette/groups region stays oneelement_type-aware helper. Verified: 370-case old-vs-main differential, 0 mismatches; newtest_type_check_params_preserves_validation_order._convert_shapes(_geometry.py) → hoisted the stateless circle→hex/square/circle converters to module level and deduped the copy-pasted convex-hull into one_enclosing_circle. Verified: byte-identical geometry output across circles/polygons/multipolygons × circle/hex/visium_hex/square._set_color_source_vec(_color.py, 236 lines / CCN≈48 → 171 / CCN≈29) → extracted_resolve_color_origins,_fetch_color_source_vector,_resolve_color_table(the categorical-mapping + output assembly stay inline). Verified: byte-identical(source_vector, color_vector, categorical)over 160 cases (element × color-column × palette × groups × render_type).Not done (deliberately)
_get_collection_shape— the issue listed it (CCN 39), but #699 has since shrunk it to 65 lines / CCN≈17, below the decomposition bar. Left as-is.Verification
Full non-visual suite 510 passed on each step. The two rendering-output functions (
_convert_shapes,_set_color_source_vec) are additionally locked by the differential harnesses above; final visual sign-off is CI baselines.