tree 82f4ac3cae695ae38246a692542cfbe64ede5659
parent ea3959e841367ef691472ccf78ec25252dbfe288
author Finn Plummer <canadienfinn@gmail.com> 1746031268 -0700
committer GitHub <noreply@github.com> 1746031268 -0700
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsFcBAABCAAQBQJoElKkCRC1aQ7uu5UhlAAARioQAKSkykTdBOGYsLCcvwxFAjzp
 ywF4wm2tTM9L/SQLEcoikD2mGhm/Z0o3qq1ETxQ1DcY1FRoj2ISAv0S34bomJ7G8
 AEntdFjeftEke//6ytULcybmy4pkY24x+yLCfMCBjbxcdOX9wKa9go3G9UhuXr8K
 NWOzCEmX8pg3p4QSfIRcNOtF/r/K8zd3MUYMjmsgN1ctBL/8sv2c9dO36BP4o26n
 UOBFMx/N+8NvnHjsyv83IvCwVak8Q5+ntWkrY334N1lonbwhspJV4h63KmN+YocC
 rtkhT9WR7D5NCaxZy+t8mUxKLGCwmGRlnrBkuYHdolQWDdmhNa9nAr1Jy4BiTR2m
 U396Iay+AVWOVRA1MCrftzxujtg9W3ZHLgetysDvSDEr4bkh/LzaRu3/eysVNk4c
 JXpJD6GTmRn9lJOi9ruY2lKvZKakZ4HAyMutdilXSmwNPUeVSTv7odB0A7pCW/O7
 GIgX3s4Z+0SVE+xoWBcrbRPn2x4HjNE7luh/L/jgUBg6gfurKiJ4/N22kn4vXiAf
 C4uw7SKiXAXTijn0YuuK7Cjf0rtmK7tpwQei/WQY3Hg8wakrSDXPPDBvW4qe0ew3
 DvT/MXiSdCWouOfnJtMdmMbqavK4n0oqbmaj4xLaWZLglfODNzxHxSxM/KANgI1z
 YLfaBUGZOTmhmQyM5Yf9
 =Qbrv
 -----END PGP SIGNATURE-----
 

[HLSL][RootSignature] Add lexing support for floating points (#137720)

- this takes care to add support to match the [behaviour of
DXC](https://github.com/microsoft/DirectXShaderCompiler/blob/34b6d0f91e6afd523bdc574836093f021713cce7/tools/clang/lib/Parse/HLSLRootSignature.cpp#L74)
acceptable floating point integers

Namely:
- Allow for specifying the decimal '.'
- Allow for specifying exponents with 'e' or 'E' and allow for 'f' to
denote an otherwise interpreted integer as a float

This pr is simply responsible of creating a token that could be
interpeted as a floating point integer by `NumericLiteralParser`. As
such, we are not required to validate that the special characters only
occur once and that 'f' is only at the end of the string. These will be
validated when invoking `NumericLiteralParser` during parsing.

Resolves #126565