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109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
// This is the non-bootstraped version of the ESpecifier. This will be obsolete once bootstrap is stress tested.
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namespace ESpecifier
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{
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/*
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Note: The following are handled separately:
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attributes
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alignas
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*/
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# define Define_Specifiers \
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Entry( Invalid, INVALID ) \
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Entry( Consteval, consteval ) \
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Entry( Constexpr, constexpr ) \
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Entry( Constinit, constinit ) \
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Entry( Explicit, explicit ) \
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Entry( External_Linkage, extern ) \
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Entry( Global, global ) \
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Entry( Inline, inline ) \
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Entry( Internal_Linkage, internal ) \
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Entry( Local_Persist, local_persist ) \
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Entry( Mutable, mutable ) \
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Entry( NeverInline, neverinline ) \
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Entry( Ptr, * ) \
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Entry( Ref, & ) \
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Entry( Register, register ) \
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Entry( RValue, && ) \
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Entry( Static, static ) \
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Entry( Thread_Local, thread_local ) \
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Entry( Volatile, volatile ) \
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Entry( Virtual, virtual ) \
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Entry( Const, const ) \
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Entry( Final, final ) \
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Entry( Override, override )
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enum Type : u32
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{
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# define Entry( Specifier, Code ) Specifier,
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Define_Specifiers
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# undef Entry
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NumSpecifiers,
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};
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inline
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bool is_trailing( Type specifier )
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{
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return specifier > Virtual;
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}
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// Specifier to string
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inline
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StrC to_str( Type specifier )
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{
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local_persist
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StrC lookup[ NumSpecifiers ] = {
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# pragma push_macro( "global" )
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# pragma push_macro( "internal" )
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# pragma push_macro( "local_persist" )
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# pragma push_macro( "neverinline" )
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# undef global
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# undef internal
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# undef local_persist
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# undef neverinline
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# define Entry( Spec_, Code_ ) { sizeof(stringize(Code_)), stringize(Code_) },
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Define_Specifiers
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# undef Entry
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# pragma pop_macro( "global" )
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# pragma pop_macro( "internal" )
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# pragma pop_macro( "local_persist" )
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# pragma pop_macro( "neverinline" )
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};
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return lookup[ specifier ];
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}
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inline
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Type to_type( StrC str )
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{
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local_persist
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u32 keymap[ NumSpecifiers ];
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do_once_start
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for ( u32 index = 0; index < NumSpecifiers; index++ )
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{
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StrC enum_str = to_str( (Type)index );
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// We subtract 1 to remove the null terminator
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// This is because the tokens lexed are not null terminated.
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keymap[index] = crc32( enum_str.Ptr, enum_str.Len - 1);
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}
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do_once_end
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u32 hash = crc32( str.Ptr, str.Len );
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for ( u32 index = 0; index < NumSpecifiers; index++ )
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{
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if ( keymap[index] == hash )
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return (Type)index;
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}
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return Invalid;
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}
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# undef Define_Specifiers
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}
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using SpecifierT = ESpecifier::Type;
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