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