structaccess: match encoding/json on ambiguous embedded fields - #6468

Draft

denik wants to merge 16 commits into

denik/structaccess-embedded-lookupfrom

denik/structaccess-embed-ambiguity

Commits on Sep 2, 2026

structaccess: reach fields of a doubly-embedded struct
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8cd0e02
structaccess: resolve embedded fields breadth-first, as encoding/json does
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655165c
structaccess: search embedded structs breadth-first across the whole tree
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eef30a5
structaccess: say what the doubly-embedded test is really asserting
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33bddc1
structaccess: treat a same-depth embed conflict as not found
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9783998
structaccess: silence vet on the deliberately ambiguous test fixture
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3798ed6
structaccess: do not walk a cyclic embedding twice
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7f7b156
structaccess: notice a diamond embedding as ambiguous
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b2f1381
structaccess: ambiguity is a property of the type, not of the value
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16b488e
structaccess: resolve a field on the type, then navigate the value by index
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e46a87a
structwalk: flatten an embed only when encoding/json flattens it
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eb605cd
structdiff: report a tagged embed's changes under its own name
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8e01ee6
structaccess: follow encoding/json's precedence rules for a field name
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e400c0d
structaccess: descend into a repeated embedded type once, as encoding/json does
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f191e19
structaccess: pin the repeated-embed matrix against encoding/json
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93d1a34
structs: only the exact tag json:"-" omits a field
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0324991