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Improve BitField natvis 

Now, enums are properly displayed, and BitFieldArray is also displayed nicely.  Signed values also work correctly, and 1-bit fields are not treated as bools unless the bitfield is explicitly marked as a bool.
This commit is contained in:
Pokechu22 2022-01-02 14:36:20 -08:00
parent 85d2ea0dd2
commit b96297f2ee
1 changed files with 37 additions and 34 deletions
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71
Source/Core/Common/BitField.natvis
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@ -11,61 +11,64 @@
This is a re-implementation of the abstract bitfield class' algrothm (in BitField.h)
for Visual Studio to use for pretty-printing during debugging.
-->
<Type Name="BitField&lt;*,*,*&gt;">
<DisplayString Condition="$T2 == 1"><![CDATA[{(storage & (1 << $T1)) != 0}]]></DisplayString>
<DisplayString><![CDATA[{(storage >> $T1) & ((1 << $T2) - 1)}]]></DisplayString>
<Type Name="BitField&lt;*,*,*,*&gt;">
<DisplayString><![CDATA[{($T3)((storage >> $T1) & ((1 << $T2) - 1))}]]></DisplayString>
<Expand>
<Item Name="Offset">$T1</Item>
<Item Name="Size">$T2</Item>
</Expand>
</Type>
<!-- Similar re-implementation for BitFieldArray -->
<Type Name="BitFieldArray&lt;*,*,*,*,*&gt;">
<Expand>
<IndexListItems>
<Size>$T3</Size>
<ValueNode><![CDATA[($T4)((storage >> ($T1 + $T2*$i)) & ((1 << $T2) - 1))]]></ValueNode>
</IndexListItems>
<!-- Put these after the index list, so that the index list is the main thing in the unexpanded preview -->
<Item Name="Offset">$T1</Item>
<Item Name="Size">$T2</Item>
<Item Name="Count">$T3</Item>
</Expand>
</Type>
<!--Specialised versions for signed types-->
<Type Name="BitField&lt;*,*,__int64&gt;">
<Type Name="BitField&lt;*,*,signed char,*&gt;">
<!-- It seems like we can't use s8/s16/s32/s64, nor can we use std::int8_t or the like; we have to use these names -->
<AlternativeType Name="BitField&lt;*,*,short,*&gt;" />
<AlternativeType Name="BitField&lt;*,*,int,*&gt;" />
<AlternativeType Name="BitField&lt;*,*,long long,*&gt;" />
<!-- This is what I have do to get a sign extension in this crappy natvis "language"
Basically, we check the top bit, if it's one, we add the remaining
bits to the smallest (most negative) number. -->
<DisplayString Condition="(storage &amp; (1 &lt;&lt; ($T1 + $T2))) != 0">
<![CDATA[{(-1 * (1 << ($T2-1))) + ((storage >> $T1) & ((1 << ($T2-1)) - 1))}]]>
<DisplayString Condition="(storage &amp; (1 &lt;&lt; ($T1 + $T2 - 1))) != 0">
<![CDATA[{($T3)((-1 * (1 << ($T2-1))) + ((storage >> $T1) & ((1 << ($T2-1)) - 1)))}]]>
</DisplayString>
<DisplayString><![CDATA[{(storage >> $T1) & ((1 << ($T2-1)) - 1)}]]></DisplayString>
<DisplayString><![CDATA[{($T3)((storage >> $T1) & ((1 << ($T2-1)) - 1))}]]></DisplayString>
<Expand>
<Item Name="Offset">$T1</Item>
<Item Name="Size">$T2</Item>
</Expand>
</Type>
<!-- Oh, and I can't do a generic match for all signed types, so these are identical to the __int64 case above
Would be nice if std::numeric_limits<$T3>::is_signed or std::is_signed<$T3>::value worked -->
<Type Name="BitField&lt;*,*,__int32&gt;">
<DisplayString Condition="(storage &amp; (1 &lt;&lt; ($T1 + $T2))) != 0">
<![CDATA[{(-1 * (1 << ($T2-1))) + ((storage >> $T1) & ((1 << ($T2-1)) - 1))}]]>
</DisplayString>
<DisplayString><![CDATA[{(storage >> $T1) & ((1 << ($T2-1)) - 1)}]]></DisplayString>
<Expand>
<Item Name="Offset">$T1</Item>
<Item Name="Size">$T2</Item>
</Expand>
</Type>
<Type Name="BitField&lt;*,*,__int16&gt;">
<DisplayString Condition="(storage &amp; (1 &lt;&lt; ($T1 + $T2))) != 0">
<![CDATA[{(-1 * (1 << ($T2-1))) + ((storage >> $T1) & ((1 << ($T2-1)) - 1))}]]>
</DisplayString>
<DisplayString><![CDATA[{(storage >> $T1) & ((1 << ($T2-1)) - 1)}]]></DisplayString>
<Expand>
<Item Name="Offset">$T1</Item>
<Item Name="Size">$T2</Item>
</Expand>
</Type>
<Type Name="BitField&lt;*,*,__int8&gt;">
<DisplayString Condition="(storage &amp; (1 &lt;&lt; ($T1 + $T2))) != 0">
<![CDATA[{(-1 * (1 << ($T2-1))) + ((storage >> $T1) & ((1 << ($T2-1)) - 1))}]]>
</DisplayString>
<DisplayString><![CDATA[{(storage >> $T1) & ((1 << ($T2-1)) - 1)}]]></DisplayString>
<Type Name="BitFieldArray&lt;*,*,*,signed char,*&gt;">
<AlternativeType Name="BitFieldArray&lt;*,*,*,short,*&gt;" />
<AlternativeType Name="BitFieldArray&lt;*,*,*,int,*&gt;" />
<AlternativeType Name="BitFieldArray&lt;*,*,*,long,*&gt;" />
<Expand>
<IndexListItems>
<Size>$T3</Size>
<ValueNode Condition="(storage &amp; (1 &lt;&lt; ($T1 + $T2 * $i + $T2 - 1))) != 0">
<![CDATA[($T4)((-1 * (1 << ($T2-1))) + ((storage >> ($T1 + $T2*$i)) & ((1 << ($T2-1)) - 1)))]]>
</ValueNode>
<ValueNode><![CDATA[($T4)((storage >> ($T1 + $T2*$i)) & ((1 << ($T2-1)) - 1))]]></ValueNode>
</IndexListItems>
<Item Name="Offset">$T1</Item>
<Item Name="Size">$T2</Item>
<Item Name="Count">$T3</Item>
</Expand>
</Type>
</AutoVisualizer>