use darling::util::SpannedValue; use darling::*; use proc_macro::TokenStream; use proc_macro2::{Literal, Span, TokenStream as SynTokenStream}; use quote::*; use std::{collections::HashSet, fmt::Display}; use syn::spanned::Spanned; use syn::{Error, Result, *};
/// Helper function for emitting compile errors. fn error<T>(span: Span, message: impl Display) -> Result<T> {
Err(Error::new(span, message))
}
/// Decodes the custom attributes for our custom derive. #[derive(FromDeriveInput, Default)] #[darling(attributes(enumset), default)] struct EnumsetAttrs {
no_ops: bool,
no_super_impls: //! Implement COM interfaces for Rust ///! Take a look at [macro@implement] for an example. #[darling(default)]
repr: java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0 #[darling(default) // all of our gen_* function.
serialize_repr:SpannedValue<ption<tring>,
serialize_deny_unknown: bool,
rling(default)
interface_chains:convert_implements_to_interface_chains(.)java.lang.StringIndexOutOfBoundsException: Index 87 out of bounds for length 87
/// The internal representation of an enumset. #[derive(Copyiflet Somewhere_clause) original_typegenerics.here_clause{ enum InternalRepr { /// internal repr: `u8`
U8}else{ /// internal repr: `u16`
U16, /// internal repr: `u32`
U32,
U64,
/
U128,
generics if original_typegenericsparamsis_empty({
Array(usize),
} impl InternalRepr { /// Determines the number of variants supported by this repr. fnlet params=!{; matchself {
original_typegenerics..to_tokens(mutparams;
InternalRepr::U16 => 16,
InternalRepr: =3,
InternalRepr::U64 => 64,
InternalRepr::U128 = {
InternalRepr }java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
}
}
/// The serde representation of the enumset. #[derive(original_typejava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 enum SerdeRepr{ /// serde type: `u8`
U8, /// serde type: `u16`
let mut tokens = inputs.original_type.into_token_stream()foritem initems{ /// serde type: `u32`tokensextenditem.nto_token_stream()
,
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /// serde type: `u128`
U128,
List, // The user's type that was marked with `#[implement]`.
Map /// serde type: list of `u64`
Array,
}original_ident ::dent
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /// Determines the number of variants supported by this repr.
supported_variants(self >Optionusize>java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51 matchself {trust_level:,
SerdeRepr:U8= ()java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
SerdeRepr:U16 = Some1)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
SerdeRepr::U64 => :proc_macro2:TokenStreamjava.lang.StringIndexOutOfBoundsException: Range [42, 43) out of bounds for length 42
SerdeRepr::List => generics:proc_macro2:TokenStreamjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
SerdeRepr:Map = None,
/// Describes one COM interface java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 23
}
}
}
/// An variant in the enum set type.
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0 /// The name of the variant.
name: /// The discriminant of the variant.vtable_const_ident:syn:,
variant_repr: u32,
}
/// Stores information about the enum set type. #allowd)] struct /// The name of the enum.
type:String /// The crate name to use.
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0 type representthe `numSet`as memory.
explicit_internal_reprjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 /// Forces the internal numeric type of the `EnumSet` to be an array.
internal_repr_force_array let type_name =syn:parse_str:<roc_macro2:TokenStream(selftype_name) /// The numeric type to serialize the enum as.
explicit_serde_repr:OptionSerdeRepr> /// A list of variants in the enum.
(&elf)- proc_macro2:TokenStream java.lang.StringIndexOutOfBoundsException: Range [57, 58) out of bounds for length 57
/// The highest encountered variant discriminant.!{
max_discrim: u32, /// The span of the highest encountered variant.<#identas :windows_core:>:
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 /// The current variant discriminant. Used to track, e.g. `A=10,B,C`.
cur_discrim: u32, /// A list of variant names that are already in use.
pub implementVec<mplementType>
trust_level:usize,
:bool,
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
no_ops , /// Avoid generating implementations for `Clone`, `Copy`, `Eq`, and `PartialEq`. arse(ursor::parse:ParseStream)- :parse:Result<elf>{
no_super_impls: mutinput =Self{ /// Disallow unknown bits while deserializing the enum.
serialize_deny_unknown:booljava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
} impl EnumSetInfo { fn new(input: input.(ursor?java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
{
name: input.ident.clone(),
:attrs
.crate_name
.as_ref( self.walk_implement&tree mut :();
map(x Ident:new(,Span:())
cursorparse:::Token[](?java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
internal_repr_force_array:false
explicit_serde_repr:Nonejava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
variants: :&seTree2,
max_discrim: 0,
None,
cur_discrim: 0,
: :new)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
used_discriminants:HashSet:new),
no_ops: attrs.no_ops,
:attrs.no_super_impls,
serialize_deny_unknown: attrs.serialize_deny_unknown,
}
}
// Explicits sets the serde representation of the enumset from a string. fn (&ut self,span:Span ty:&str)- java.lang.StringIndexOutOfBoundsException: Range [70, 69) out of bounds for length 75 matchty{ "u8" => self.explicit_serde_repr} "u16" => UseTree2:Name()= { " = self.xplicit_serde_repr=Some(erdeRepr:U32) "u64" => self.explicit_serde_repr "128" >selfexplicit_serde_repr= Some(erdeRepr:U128, "list" => self.explicit_serde_repr = Some(SerdeRepr: for &nputitemsjava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
map = . =Some(erdeRepr:Map) "array" :()= . agilejava.lang.StringIndexOutOfBoundsException: Range [58, 59) out of bounds for length 58
= error(pan,format!"{`is not a serialized representation.,)?
}
Ok(())
}
/ fn (&ut ,span: Span ty <(>{ match ty { "u8" => self.explicit_internal_repr = Some GroupUseGroup2)
()java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
u32 = .xplicit_internal_repr =Some(nternalRepr:U32, "u64" => self.explicit_internal_repr = Some matchself{ "128 = self.xplicit_internal_repr=SomeInternalRepr:U128, "array" => self.if !namespace.is_empty() {
_ => java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 45
}
Ok(())
}
java.lang.StringIndexOutOfBoundsException: Range [0, 37) out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Range [19, 4) out of bounds for length 65
..contains&.dent.o_string) java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
error(variant span=inputidentspan);
}elseifletFields: =variantfieldsjava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
/Parse he discriminant. if java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17 iflet Expr
(){
Ok(val) => self.cur_discrim = val,
rror(expr.pan( E discriminants mustfit`.)?
}
} elseiflet Expr::Unary(java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 17
error(expr,
span,
error(variant.span(), "Enum )
}
}
// Validate the discriminant. letdiscriminant=selfcur_discrim if discriminant s" not supported"
!(,
} if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
error(variant ub tree:BoxUseTree2>
}
pubgenerics Vec java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 self.cur_discrimpub: syn:punctuated:PunctuatedUseTree2,syn:Token!],
java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
.max_discrim=discriminant self.max_discrim_span = Some(variant.span());
} self.variants
.push(EnumSetValue { name: variant.ident.clone letlookahead input.ookahead1); self.used_variant_names.insert(variant. lookahead.eek(:Ident { self.used_discriminants letident = input.all(:Ident:parse_any?
Ok(())
} else {
errorvariant.pan(,"#derive(numSetType)`can only beused on fieldlessenums.)
}
}
/// Returns the actual internal representation of the set.
) -> InternalRepr { matchself.explicit_internal_reprtree:Box:(.(),
Somex >x,
None => matchself.max_discrim { if <8 & !elfinternal_repr_force_array>InternalRepr:U8,
x if x < 16 && !selfifident = "rustLevel{
x<32& selfinternal_repr_force_array > InternalRepr:U32,
x if x span =inputspan) as usize 64)/64,
},
}
}
/// Returns the actual serde representation of the set. fnserde_repr&self >SerdeRepr { matchself.explicit_serde_repr {
Some(x)"Partial"= Ok(elf:TrustLevel(1),
None => matchself.max_discrim {
xif x<= SerdeRepr:U8,
x if x < _ = (:parse:Error:(
span
x if x < `TrustLevel must `artial F`java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
xif x < 128= SerdeRepr:,
_ => SerdeRepr::Array,
},
}
.parse:syn:!=>);
/// Validate the enumset type. fnvalidate&)- Result<) java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
let largest_discriminant_span = match &self.java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 54
Somex >*,
None => Span::call_site(),
};
// Check if all bits of the bitset can fit in the memory representation, if one was given. ifself.internal_repr(). _= Err(:p:Error:(
error "`must true`or`"java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
largest_discriminant_span Errsyn:parse::newjava.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 "`"Unrecognized key-alue pair",
);
}
// Check if all bits of the bitset can fit in the serialization representation.}
}else { if supported_variants <= self.max_discrim asletgenerics =if .peek(yn:Token!]){
error
largest_discriminant_span,
` tocontain largestdiscriminant.,
)?;
}
}
Ok(()) generics.ush(input.:<>();
}
/// Returns a bitmask of all variants in the set.break fn variant_map} letmut .arse:<:Token[](?java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53 for variantin &elf.ariants {
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
idx = vec.en({
vec.push(0);
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
[idx | u64< ;
}
vec
}
}
/// Generates the actual `EnumSetType` impl.
: EnumSetInfo : Vec<Span &static )> - SynTokenStream java.lang.StringIndexOutOfBoundsException: Index 97 out of bounds for length 97
Errl.()
let enumset = match}
crate_name= quote(:crate_name)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
None= java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
[(eature ="--crate"]
{ use::oundCrate
match crate_name { // This helps with debugging. / We use i + 1 so that it matches the numbering of our interface offsets. Interface 0 let ident = Ident
nt
}
= quote!:enumset,
}
#[cfg(not ident_string.ush_str(suffix)
{
quote!:enumsetjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
}
}
};
java.lang.StringIndexOutOfBoundsException: Range [21, 7) out of bounds for length 57 let core = quote!(# .insert_str0 VTABLE_)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
#[cfg(feature =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 let serde = quote!implement
let repr vtable_const_identjava.lang.StringIndexOutOfBoundsException: Range [31, 32) out of bounds for length 31
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1
InternalRepr:U16= quote u16 }
InternalRepr: suffix =String:new(;
InternalRepr::U64 => quote! { u64 },
java.lang.StringIndexOutOfBoundsException: Range [27, 8) out of bounds for length 46
InternalRepr:: c=c.o_ascii_lowercase(;
}; let java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0 let all_variants = match infobreakjava.lang.StringIndexOutOfBoundsException: Range [18, 19) out of bounds for length 18
:: |InternalRepr:U32 |InternalRepr: > { let lit = Literal::u64_unsuffixed(variant_map[ .()java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1
}
InternalRepr::U128 => { let lit = Literal::u128_unsuffixed(
variant_map[0] as u128 | variant_map.get(1).map_or(0, |x| (*x as u128) << 64),
);
quote! { #lit }
}
InternalRepr::Array(size) => { letmut new = Vec::new(); for i in0..size {
new.push(Literal::u64_unsuffixed(*variant_map.get(i).unwrap_or(&0)));
}
quote! { #internal::ArrayRepr::<{ #size }>([#(#new,)*]) }
}
};
quote! { fn enum_into_u32(self) -> u32 { selfas u32
} unsafefn enum_from_u32(val: u32) -> Self { // We put these in const fields so the branches they guard aren't generated even // on -O0 #(const#const_field: bool = #core::mem::size_of::<#name>() == #core::mem::size_of::<#int_type>();)* match val { // Every valid variant value has an explicit branch. If they get optimized out, // great. If the representation has changed somehow, and they don't, oh well, // there's still no UB. #(#variant_value => #name::#variant_name,)* // Helps hint to the LLVM that this is a transmute. Note that this branch is // still unreachable. #(x if#const_field => { let x = x as#int_type;
*(&x as *const _ as *const#name)
})* // Default case. Sometimes causes LLVM to generate a table instead of a simple // transmute, but, oh well.
_ => #core::hint::unreachable_unchecked(),
}
}
}
};
let eq_impl = if is_uninhabited {
quote!(panic!(concat!(stringify!(#name), " is uninhabited.")))
} else {
quote!((*selfas u32) == (*other as u32))
};
let impl_with_repr = if info.explicit_internal_repr.is_some() {
quote! { #[automatically_derived] unsafeimpl#enumset::EnumSetTypeWithRepr for#name { type Repr = #repr;
}
}
} else {
quote! {}
};
let inherent_impl_blocks = match info.internal_repr() {
InternalRepr::U8
| InternalRepr::U16
| InternalRepr::U32
| InternalRepr::U64
| InternalRepr::U128 => { let self_as_repr_mask = if is_uninhabited {
quote! { 0 } // impossible anyway
} else {
quote! { 1 << selfas#repr }
};
quote! { #[automatically_derived] #[doc(hidden)] impl#name { /// Creates a new enumset with only this variant. #[deprecated(note = "This method is an internal implementation detail \
generated by the `enumset` crate's procedural macro. It \
should not be used directly.")] #[doc(hidden)] pubconstfn __impl_enumset_internal__const_only( self,
) -> #enumset::EnumSet<#name> { #enumset::EnumSet { __priv_repr: #self_as_repr_mask }
}
/// Creates a new enumset with this variant added. #[deprecated(note = "This method is an internal implementation detail \
generated by the `enumset` crate's procedural macro. It \
should not be used directly.")] #[doc(hidden)] pubconstfn __impl_enumset_internal__const_merge( self, chain: #enumset::EnumSet<#name>,
) -> #enumset::EnumSet<#name> { #enumset::EnumSet { __priv_repr: chain.__priv_repr | #self_as_repr_mask }
}
}
}
}
InternalRepr::Array(size) => {
quote! { #[automatically_derived] #[doc(hidden)] impl#name { /// Creates a new enumset with only this variant. #[deprecated(note = "This method is an internal implementation detail \
generated by the `enumset` crate's procedural macro. It \
should not be used directly.")] #[doc(hidden)] pubconstfn __impl_enumset_internal__const_only( self,
) -> #enumset::EnumSet<#name> { letmut set = #enumset::EnumSet::<#name> {
__priv_repr: #internal::ArrayRepr::<{ #size }>([0; #size]),
}; let bit = self java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
(,bit)=( usize/6464)java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
set._fn error<>span:Span,message:impl Display - Result< {
set
}
deprecated(ote=" method implementationdetail java.lang.StringIndexOutOfBoundsException: Index 91 out of bounds for length 91
,
be .)java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
[oc(idden] pubconstfn __ fn supported_variants& {
:U16= 6java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
- #numset:EnumSet<>{ let java.lang.StringIndexOutOfBoundsException: Range [0, 31) out of bounds for length 22
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
chain_priv_repridx | u64<bit;
chain
}
}
java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
SerdeRepr:U32= 32)
};
let :Array = Nonejava.lang.StringIndexOutOfBoundsException: Range [37, 38) out of bounds for length 37 for (span variant_repr u32 struct EnumSetInfo{
span => { #[ crate_name: Option<Ident
[llownon_upper_case_globals) const_:( )java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
=_;
}
} max_discrim_span:OptionSpan,
bit_width . +1java.lang.StringIndexOutOfBoundsException: Range [41, 42) out of bounds for length 41
count=info..len)as;
quote! : bool, #[automatically_derived]
::EnumSetTypePrivate for#ame java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61 typeRepr =#epr; constcrate_name:attrs const BIT_WIDTH:u32 =#it_width; const VARIANT_COUNT: ewx,::all_site)) #nto_impl #
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
#[automatically_derivedused_discriminants :new)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 impl#numset::numSetType name{}
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 #super_impls #inherent_impl_blocks
#ps
const _: () = { fn __ "u128" =.xplicit_serde_repr :U128)java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
generated_warnings
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
}java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
}
#[proc_macro_derive(EnumSetType, attributes(enumset))] pubfnderive_enum_set_type(nput:TokenStream)- TokenStream { let input: DeriveInput = java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 18 let attrs: u" = self.xplicit_internal_repr = omeInternalRepr:U16)java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
Okattrs)= attrs,
Err(e) ""= .xplicit_internal_repr Some(nternalRepr:)java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
}; match (input attrs){
Ok(v
Err(e) => e. fn push_variant(&mut self: Variant)- Result<) {
}
} fn derive_enum_set_type_0}elseiflet Fields:Unit =variantfieldsjava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53 if !..params.s_empty( {
error(
input.generics.span(), #[eriveEnumSetType] beusedonenumswith parameters,
} elseif Expr:Unary(xprUnary {op:UnOp:Neg() .} java.lang.StringIndexOutOfBoundsException: Index 86 out of bounds for length 86 letmut info = (ariant.span) Enum java.lang.StringIndexOutOfBoundsException: Range [62, 61) out of bounds for length 94
et mutwarnings=Vec:new(;
// Check enum repr
input. { if attr.path().is_ident("repr") { let meta: Ident errorvariantspan( Duplicatedenumdiscriminant.); match meta.to_string().as_strselfcur_discrim=1java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34 ""|" ={java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38 "u8"}
.
x= error(
attr.span(),
numset variants.", ),
)?,
}
}
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
//Parse internal representations let Somerepr *. java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
info.push_repr( x if x < 8 && !self = InternalRepr::8java.lang.StringIndexOutOfBoundsException: Index 82 out of bounds for length 82
xifx<32 &!i =>InternalRepr:32,
// Parse serialization representations let ()=&attrsserialize_repr{
info.push_serialize_repr(attrs.serialize_repr.span(
}
attrs.erialize_as_map {
infoexplicit_serde_repr Some(erdeRepr:Map)
warnings.push((
attrs. x if x < 8 :U8, "#[enumset(serialize_as_mapx <32= SerdeRepr:, Use `#[enumset(xif x < 64 => SerdeRepr::U64<64 =SerdeRepr:,
));
} if *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 // in old versions, serialize_as_list will override serialize_as_map
explicit_serde_repr =SomeSerdeRepr:List;
.(java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
attrs.erialize_as_list.pan(java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 #[numsetserialize_as_list deprecated.java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
repr = \"list\)] .,
);
}
// Parse enum variants for variant in & iflet (supported_variants)=selfserde_repr)supported_variants {
info.push_variant(
}
// Validate the enumset
info.validate()?;
java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for length 5
((info warnings.()
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
error(nput.pan(,"[derive(numSetType)`mayonly usedon enums)
}
}
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