105 lines
4.0 KiB
XML
105 lines
4.0 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<AutoVisualizer xmlns="http://schemas.microsoft.com/vstudio/debugger/natvis/2010">
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<!--
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std::collection::Hash* container visualizers
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Current std impls:
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std::collections::hash::set::HashSet<K, S> is implemented in terms of...
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hashbrown::set::HashSet<K, S> is implemented in terms of...
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hashbrown::map::HashMap<K, V, S> is implemented in terms of...
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hashbrown::raw::RawTable<(K, V)>
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Ideally, we'd teach rustc to scan dependencies/crates for .natvis files so
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the bulk of this could live alongside the hashbrown crate implementation,
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and std would just forward using e.g. <ExpandedItem>base</ExpandedItem>.
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However, Given that std...Hash*Set* is currently implemented in terms of
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hashbrown...Hash*Map*, which would visualize poorly, we want to customize the
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look/feel at the std type level *anyways*...
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References:
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https://github.com/rust-lang/rust/blob/master/src/libstd/collections/hash/map.rs
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https://github.com/rust-lang/rust/blob/master/src/libstd/collections/hash/set.rs
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https://github.com/rust-lang/hashbrown/blob/master/src/map.rs
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https://github.com/rust-lang/hashbrown/blob/master/src/set.rs
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https://github.com/rust-lang/hashbrown/blob/master/src/raw/mod.rs
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-->
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<Type Name="std::collections::hash::map::HashMap<*,*,*>">
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<DisplayString>{{ len={base.table.table.items} }}</DisplayString>
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<Expand>
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<Item Name="[len]">base.table.table.items</Item>
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<Item Name="[capacity]">base.table.table.items + base.table.table.growth_left</Item>
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<Item Name="[state]">base.hash_builder</Item>
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<CustomListItems>
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<Variable Name="i" InitialValue="0" />
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<Variable Name="n" InitialValue="base.table.table.items" />
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<Size>base.table.table.items</Size>
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<Loop>
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<Break Condition="n == 0" />
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<If Condition="(base.table.table.ctrl.pointer[i] & 0x80) == 0">
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<!-- Bucket is populated -->
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<Exec>n--</Exec>
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<Item Name="{((tuple<$T1, $T2>*)base.table.table.ctrl.pointer)[-(i + 1)].__0}">((tuple<$T1, $T2>*)base.table.table.ctrl.pointer)[-(i + 1)].__1</Item>
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</If>
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<Exec>i++</Exec>
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</Loop>
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</CustomListItems>
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</Expand>
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</Type>
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<Type Name="std::collections::hash::set::HashSet<*,*>">
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<DisplayString>{{ len={base.map.table.items} }}</DisplayString>
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<Expand>
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<Item Name="[len]">base.map.table.items</Item>
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<Item Name="[capacity]">base.map.table.items + base.map.table.growth_left</Item>
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<Item Name="[state]">base.map.hash_builder</Item>
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<CustomListItems>
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<Variable Name="i" InitialValue="0" />
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<Variable Name="n" InitialValue="base.map.table.items" />
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<Size>base.map.table.items</Size>
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<Loop>
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<Break Condition="n == 0" />
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<If Condition="(base.map.table.ctrl.pointer[i] & 0x80) == 0">
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<!-- Bucket is populated -->
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<Exec>n--</Exec>
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<Item>(($T1*)base.map.table.ctrl.pointer)[-(i + 1)]</Item>
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</If>
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<Exec>i++</Exec>
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</Loop>
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</CustomListItems>
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</Expand>
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</Type>
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<Type Name="std::ffi::c_str::CString">
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<DisplayString>{inner.data_ptr,s}</DisplayString>
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<Expand>
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<Synthetic Name="[chars]">
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<Expand>
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<ArrayItems>
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<Size>inner.length</Size>
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<ValuePointer>(char*)inner.data_ptr</ValuePointer>
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</ArrayItems>
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</Expand>
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</Synthetic>
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</Expand>
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</Type>
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<Type Name="std::ffi::c_str::CStr">
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<DisplayString>{(char*) inner}</DisplayString>
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<Expand>
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<Synthetic Name="[chars]">
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<DisplayString>{(char*) inner}</DisplayString>
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<Expand>
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<ArrayItems>
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<Size>strlen((char *) inner) + 1</Size>
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<ValuePointer>(char*)inner</ValuePointer>
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</ArrayItems>
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</Expand>
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</Synthetic>
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</Expand>
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</Type>
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</AutoVisualizer>
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