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Missing iteration interface for storage::HashMap #317

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bedeho opened this issue Feb 4, 2020 · 1 comment
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Missing iteration interface for storage::HashMap #317

bedeho opened this issue Feb 4, 2020 · 1 comment
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A-ink_storage [ink_storage] Work Item B-enhancement New feature or request

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@bedeho
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bedeho commented Feb 4, 2020 •
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For normal runtime modules, decl_storage offers the linked_map variant, which allows iteration of mappings. The HashMap collection currently offered has no such iteration.
Importantly, Vec and BTreeMap style storage containers are not a good alternative in all contexts, because they do not have sublinear running time on insertion/deletion, and no light client proofs for individual elements or mappings, respectively.
@Robbepop Robbepop changed the title Misssing iterable storage map Missing iteration interface for storage::HashMap Feb 4, 2020
@Robbepop Robbepop added A-ink_storage [ink_storage] Work Item B-enhancement New feature or request labels Feb 7, 2020
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This is indirectly superseeded by #347 since making the hash map aware of its keys will also allow iteration. Closed.

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A-ink_storage [ink_storage] Work Item B-enhancement New feature or request
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