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# Objective Clean up code surrounding fetch by pulling out the common parts into the iteration code. ## Solution Merge `Fetch::table_fetch` and `Fetch::archetype_fetch` into a single API: `Fetch::fetch(&mut self, entity: &Entity, table_row: &usize)`. This provides everything any fetch requires to internally decide which storage to read from and get the underlying data. All of these functions are marked as `#[inline(always)]` and the arguments are passed as references to attempt to optimize out the argument that isn't being used. External to `Fetch`, Query iteration has been changed to keep track of the table row and entity outside of fetch, which moves a lot of the expensive bookkeeping `Fetch` structs had previously done internally into the outer loop. ~~TODO: Benchmark, docs~~ Done. --- ## Changelog Changed: `Fetch::table_fetch` and `Fetch::archetype_fetch` have been merged into a single `Fetch::fetch` function. ## Migration Guide TODO Co-authored-by: Brian Merchant <bhmerchang@gmail.com> Co-authored-by: Saverio Miroddi <saverio.pub2@gmail.com> |
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