chore: add vendor dependencies for kauma build
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219
vendor/syn/src/op.rs
vendored
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219
vendor/syn/src/op.rs
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ast_enum! {
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/// A binary operator: `+`, `+=`, `&`.
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#[cfg_attr(docsrs, doc(cfg(any(feature = "full", feature = "derive"))))]
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#[non_exhaustive]
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pub enum BinOp {
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/// The `+` operator (addition)
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Add(Token![+]),
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/// The `-` operator (subtraction)
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Sub(Token![-]),
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/// The `*` operator (multiplication)
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Mul(Token![*]),
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/// The `/` operator (division)
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Div(Token![/]),
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/// The `%` operator (modulus)
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Rem(Token![%]),
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/// The `&&` operator (logical and)
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And(Token![&&]),
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/// The `||` operator (logical or)
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Or(Token![||]),
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/// The `^` operator (bitwise xor)
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BitXor(Token![^]),
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/// The `&` operator (bitwise and)
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BitAnd(Token![&]),
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/// The `|` operator (bitwise or)
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BitOr(Token![|]),
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/// The `<<` operator (shift left)
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Shl(Token![<<]),
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/// The `>>` operator (shift right)
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Shr(Token![>>]),
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/// The `==` operator (equality)
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Eq(Token![==]),
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/// The `<` operator (less than)
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Lt(Token![<]),
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/// The `<=` operator (less than or equal to)
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Le(Token![<=]),
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/// The `!=` operator (not equal to)
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Ne(Token![!=]),
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/// The `>=` operator (greater than or equal to)
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Ge(Token![>=]),
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/// The `>` operator (greater than)
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Gt(Token![>]),
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/// The `+=` operator
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AddAssign(Token![+=]),
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/// The `-=` operator
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SubAssign(Token![-=]),
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/// The `*=` operator
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MulAssign(Token![*=]),
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/// The `/=` operator
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DivAssign(Token![/=]),
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/// The `%=` operator
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RemAssign(Token![%=]),
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/// The `^=` operator
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BitXorAssign(Token![^=]),
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/// The `&=` operator
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BitAndAssign(Token![&=]),
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/// The `|=` operator
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BitOrAssign(Token![|=]),
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/// The `<<=` operator
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ShlAssign(Token![<<=]),
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/// The `>>=` operator
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ShrAssign(Token![>>=]),
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}
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}
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ast_enum! {
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/// A unary operator: `*`, `!`, `-`.
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#[cfg_attr(docsrs, doc(cfg(any(feature = "full", feature = "derive"))))]
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#[non_exhaustive]
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pub enum UnOp {
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/// The `*` operator for dereferencing
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Deref(Token![*]),
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/// The `!` operator for logical inversion
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Not(Token![!]),
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/// The `-` operator for negation
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Neg(Token![-]),
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}
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}
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#[cfg(feature = "parsing")]
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pub(crate) mod parsing {
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use crate::error::Result;
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use crate::op::{BinOp, UnOp};
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use crate::parse::{Parse, ParseStream};
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#[cfg_attr(docsrs, doc(cfg(feature = "parsing")))]
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impl Parse for BinOp {
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fn parse(input: ParseStream) -> Result<Self> {
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if input.peek(Token![+=]) {
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input.parse().map(BinOp::AddAssign)
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} else if input.peek(Token![-=]) {
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input.parse().map(BinOp::SubAssign)
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} else if input.peek(Token![*=]) {
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input.parse().map(BinOp::MulAssign)
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} else if input.peek(Token![/=]) {
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input.parse().map(BinOp::DivAssign)
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} else if input.peek(Token![%=]) {
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input.parse().map(BinOp::RemAssign)
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} else if input.peek(Token![^=]) {
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input.parse().map(BinOp::BitXorAssign)
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} else if input.peek(Token![&=]) {
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input.parse().map(BinOp::BitAndAssign)
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} else if input.peek(Token![|=]) {
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input.parse().map(BinOp::BitOrAssign)
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} else if input.peek(Token![<<=]) {
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input.parse().map(BinOp::ShlAssign)
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} else if input.peek(Token![>>=]) {
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input.parse().map(BinOp::ShrAssign)
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} else if input.peek(Token![&&]) {
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input.parse().map(BinOp::And)
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} else if input.peek(Token![||]) {
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input.parse().map(BinOp::Or)
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} else if input.peek(Token![<<]) {
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input.parse().map(BinOp::Shl)
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} else if input.peek(Token![>>]) {
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input.parse().map(BinOp::Shr)
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} else if input.peek(Token![==]) {
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input.parse().map(BinOp::Eq)
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} else if input.peek(Token![<=]) {
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input.parse().map(BinOp::Le)
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} else if input.peek(Token![!=]) {
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input.parse().map(BinOp::Ne)
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} else if input.peek(Token![>=]) {
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input.parse().map(BinOp::Ge)
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} else if input.peek(Token![+]) {
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input.parse().map(BinOp::Add)
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} else if input.peek(Token![-]) {
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input.parse().map(BinOp::Sub)
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} else if input.peek(Token![*]) {
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input.parse().map(BinOp::Mul)
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} else if input.peek(Token![/]) {
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input.parse().map(BinOp::Div)
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} else if input.peek(Token![%]) {
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input.parse().map(BinOp::Rem)
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} else if input.peek(Token![^]) {
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input.parse().map(BinOp::BitXor)
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} else if input.peek(Token![&]) {
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input.parse().map(BinOp::BitAnd)
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} else if input.peek(Token![|]) {
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input.parse().map(BinOp::BitOr)
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} else if input.peek(Token![<]) {
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input.parse().map(BinOp::Lt)
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} else if input.peek(Token![>]) {
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input.parse().map(BinOp::Gt)
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} else {
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Err(input.error("expected binary operator"))
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}
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}
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}
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#[cfg_attr(docsrs, doc(cfg(feature = "parsing")))]
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impl Parse for UnOp {
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fn parse(input: ParseStream) -> Result<Self> {
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let lookahead = input.lookahead1();
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if lookahead.peek(Token![*]) {
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input.parse().map(UnOp::Deref)
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} else if lookahead.peek(Token![!]) {
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input.parse().map(UnOp::Not)
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} else if lookahead.peek(Token![-]) {
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input.parse().map(UnOp::Neg)
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} else {
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Err(lookahead.error())
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}
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}
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}
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}
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#[cfg(feature = "printing")]
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mod printing {
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use crate::op::{BinOp, UnOp};
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use proc_macro2::TokenStream;
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use quote::ToTokens;
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#[cfg_attr(docsrs, doc(cfg(feature = "printing")))]
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impl ToTokens for BinOp {
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fn to_tokens(&self, tokens: &mut TokenStream) {
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match self {
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BinOp::Add(t) => t.to_tokens(tokens),
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BinOp::Sub(t) => t.to_tokens(tokens),
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BinOp::Mul(t) => t.to_tokens(tokens),
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BinOp::Div(t) => t.to_tokens(tokens),
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BinOp::Rem(t) => t.to_tokens(tokens),
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BinOp::And(t) => t.to_tokens(tokens),
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BinOp::Or(t) => t.to_tokens(tokens),
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BinOp::BitXor(t) => t.to_tokens(tokens),
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BinOp::BitAnd(t) => t.to_tokens(tokens),
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BinOp::BitOr(t) => t.to_tokens(tokens),
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BinOp::Shl(t) => t.to_tokens(tokens),
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BinOp::Shr(t) => t.to_tokens(tokens),
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BinOp::Eq(t) => t.to_tokens(tokens),
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BinOp::Lt(t) => t.to_tokens(tokens),
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BinOp::Le(t) => t.to_tokens(tokens),
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BinOp::Ne(t) => t.to_tokens(tokens),
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BinOp::Ge(t) => t.to_tokens(tokens),
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BinOp::Gt(t) => t.to_tokens(tokens),
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BinOp::AddAssign(t) => t.to_tokens(tokens),
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BinOp::SubAssign(t) => t.to_tokens(tokens),
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BinOp::MulAssign(t) => t.to_tokens(tokens),
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BinOp::DivAssign(t) => t.to_tokens(tokens),
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BinOp::RemAssign(t) => t.to_tokens(tokens),
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BinOp::BitXorAssign(t) => t.to_tokens(tokens),
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BinOp::BitAndAssign(t) => t.to_tokens(tokens),
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BinOp::BitOrAssign(t) => t.to_tokens(tokens),
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BinOp::ShlAssign(t) => t.to_tokens(tokens),
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BinOp::ShrAssign(t) => t.to_tokens(tokens),
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}
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}
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}
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#[cfg_attr(docsrs, doc(cfg(feature = "printing")))]
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impl ToTokens for UnOp {
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fn to_tokens(&self, tokens: &mut TokenStream) {
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match self {
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UnOp::Deref(t) => t.to_tokens(tokens),
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UnOp::Not(t) => t.to_tokens(tokens),
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UnOp::Neg(t) => t.to_tokens(tokens),
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}
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}
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}
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}
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