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STL.natvis: Simplify visualization for string (#5177)
Co-authored-by: Stephan T. Lavavej <[email protected]>
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‎stl/debugger/STL.natvis

Lines changed: 7 additions & 81 deletions
Original file line numberDiff line numberDiff line change
@@ -1001,17 +1001,14 @@ SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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* Notes:
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* Hard coding _BUF_SIZE for clang-cl compatibility; clang-cl as of 7.0.1 does not emit S_CONSTANT to get _BUF_SIZE
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*
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* char = na format
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* wchar_t / unsigned short / char16_t = su format
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* char32_t = s32 format
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* The `na` format specifier means "no address". For more info, see:
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* https://learn.microsoft.com/en-us/visualstudio/debugger/format-specifiers-in-cpp?view=vs-2022
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-->
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<Type Name="std::basic_string&lt;char,*&gt;">
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<AlternativeType Name="std::basic_string&lt;char8_t,*&gt;" />
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<Type Name="std::basic_string&lt;*&gt;">
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<Intrinsic Name="size" Expression="_Mypair._Myval2._Mysize" />
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<Intrinsic Name="capacity" Expression="_Mypair._Myval2._Myres" />
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<!-- _BUF_SIZE = 16 / sizeof(char) &lt; 1 ? 1 : 16 / sizeof(char) == 16 -->
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<Intrinsic Name="bufSize" Expression="16" />
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<!-- _BUF_SIZE = 16 / sizeof($T1) &lt; 1 ? 1 : 16 / sizeof($T1) -->
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<Intrinsic Name="bufSize" Expression="16 / sizeof($T1) &lt; 1 ? 1 : 16 / sizeof($T1)" />
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<Intrinsic Name="isShortString" Expression="capacity() &lt; bufSize()" />
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<Intrinsic Name="isLongString" Expression="capacity() &gt;= bufSize()" />
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<DisplayString Condition="isShortString()">{_Mypair._Myval2._Bx._Buf,na}</DisplayString>
@@ -1030,85 +1027,14 @@ SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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</Expand>
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</Type>
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<Type Name="std::basic_string&lt;wchar_t,*&gt;">
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<AlternativeType Name="std::basic_string&lt;unsigned short,*&gt;" />
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<AlternativeType Name="std::basic_string&lt;char16_t,*&gt;" />
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<Intrinsic Name="size" Expression="_Mypair._Myval2._Mysize" />
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<Intrinsic Name="capacity" Expression="_Mypair._Myval2._Myres" />
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<!-- _BUF_SIZE = 16 / sizeof(wchar_t) &lt; 1 ? 1 : 16 / sizeof(wchar_t) == 8 -->
1040-
<Intrinsic Name="bufSize" Expression="8" />
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<Intrinsic Name="isShortString" Expression="capacity() &lt; bufSize()" />
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<Intrinsic Name="isLongString" Expression="capacity() &gt;= bufSize()" />
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<DisplayString Condition="isShortString()">{_Mypair._Myval2._Bx._Buf,su}</DisplayString>
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<DisplayString Condition="isLongString()">{_Mypair._Myval2._Bx._Ptr,su}</DisplayString>
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<StringView Condition="isShortString()">_Mypair._Myval2._Bx._Buf,su</StringView>
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<StringView Condition="isLongString()">_Mypair._Myval2._Bx._Ptr,su</StringView>
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<Expand>
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<Item Name="[size]" ExcludeView="simple">size()</Item>
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<Item Name="[capacity]" ExcludeView="simple">capacity()</Item>
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<Item Name="[allocator]" ExcludeView="simple">_Mypair</Item>
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<ArrayItems>
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<Size>_Mypair._Myval2._Mysize</Size>
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<ValuePointer Condition="isShortString()">_Mypair._Myval2._Bx._Buf</ValuePointer>
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<ValuePointer Condition="isLongString()">_Mypair._Myval2._Bx._Ptr</ValuePointer>
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</ArrayItems>
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</Expand>
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</Type>
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<Type Name="std::basic_string&lt;char32_t,*&gt;">
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<Intrinsic Name="size" Expression="_Mypair._Myval2._Mysize" />
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<Intrinsic Name="capacity" Expression="_Mypair._Myval2._Myres" />
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<!-- _BUF_SIZE = 16 / sizeof(char32_t) &lt; 1 ? 1 : 16 / sizeof(char32_t) == 4 -->
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<Intrinsic Name="bufSize" Expression="4" />
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<Intrinsic Name="isShortString" Expression="capacity() &lt; bufSize()" />
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<Intrinsic Name="isLongString" Expression="capacity() &gt;= bufSize()" />
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<DisplayString Condition="isShortString()">{_Mypair._Myval2._Bx._Buf,s32}</DisplayString>
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<DisplayString Condition="isLongString()">{_Mypair._Myval2._Bx._Ptr,s32}</DisplayString>
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<StringView Condition="isShortString()">_Mypair._Myval2._Bx._Buf,s32</StringView>
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<StringView Condition="isLongString()">_Mypair._Myval2._Bx._Ptr,s32</StringView>
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<Expand>
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<Item Name="[size]" ExcludeView="simple">size()</Item>
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<Item Name="[capacity]" ExcludeView="simple">capacity()</Item>
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<Item Name="[allocator]" ExcludeView="simple">_Mypair</Item>
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<ArrayItems>
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<Size>_Mypair._Myval2._Mysize</Size>
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<ValuePointer Condition="isShortString()">_Mypair._Myval2._Bx._Buf</ValuePointer>
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<ValuePointer Condition="isLongString()">_Mypair._Myval2._Bx._Ptr</ValuePointer>
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</ArrayItems>
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</Expand>
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</Type>
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<Type Name="std::_String_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;char&gt; &gt; &gt;">
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<AlternativeType Name="std::_String_const_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;char&gt; &gt; &gt;" />
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<AlternativeType Name="std::_String_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;char8_t&gt; &gt; &gt;" />
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<AlternativeType Name="std::_String_const_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;char8_t&gt; &gt; &gt;" />
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<Type Name="std::_String_iterator&lt;*&gt;">
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<AlternativeType Name="std::_String_const_iterator&lt;*&gt;" />
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<SmartPointer Usage="Indexable">_Ptr,na</SmartPointer>
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<Expand>
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<Item Name="[ptr]">_Ptr</Item>
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</Expand>
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</Type>
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<Type Name="std::_String_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;wchar_t&gt; &gt; &gt;">
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<AlternativeType Name="std::_String_const_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;wchar_t&gt; &gt; &gt;" />
1094-
<AlternativeType Name="std::_String_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;unsigned short&gt; &gt; &gt;" />
1095-
<AlternativeType Name="std::_String_const_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;unsigned short&gt; &gt; &gt;" />
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<AlternativeType Name="std::_String_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;char16_t&gt; &gt; &gt;" />
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<AlternativeType Name="std::_String_const_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;char16_t&gt; &gt; &gt;" />
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<SmartPointer Usage="Indexable">_Ptr,su</SmartPointer>
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<Expand>
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<Item Name="[ptr]">_Ptr</Item>
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</Expand>
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</Type>
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<Type Name="std::_String_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;char32_t&gt; &gt; &gt;">
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<AlternativeType Name="std::_String_const_iterator&lt;std::_String_val&lt;std::_Simple_types&lt;char32_t&gt; &gt; &gt;" />
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<SmartPointer Usage="Indexable">_Ptr,s32</SmartPointer>
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<Expand>
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<Item Name="[ptr]">_Ptr</Item>
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</Expand>
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</Type>
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<Type Name="std::basic_string_view&lt;*,*&gt;">
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<Intrinsic Name="size" Expression="_Mysize" />
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<Intrinsic Name="data" Expression="_Mydata" />

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