diff options
Diffstat (limited to 'src/etc/natvis/libstd.natvis')
| -rw-r--r-- | src/etc/natvis/libstd.natvis | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/etc/natvis/libstd.natvis b/src/etc/natvis/libstd.natvis new file mode 100644 index 000000000..4371b9953 --- /dev/null +++ b/src/etc/natvis/libstd.natvis @@ -0,0 +1,120 @@ +<?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> |