rsonpath-lib 0.10.0

Blazing fast JSONPath query engine powered by SIMD. Core library of `rsonpath`.
Documentation 
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#[cfg(target_arch = "x86")]
pub(super) mod mask_32;
#[cfg(target_arch = "x86_64")]
pub(super) mod mask_64;
#[cfg(target_arch = "aarch64")]
pub(super) mod mask_neon;
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
pub(super) mod vector_128;
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
pub(super) mod vector_256;
#[cfg(target_arch = "x86_64")]
pub(super) mod vector_512;
#[cfg(target_arch = "aarch64")]
pub(super) mod vector_neon;

#[cfg(any(target_arch = "x86", target_arch = "x86_64", target_arch = "aarch64"))]
macro_rules! quote_classifier {
    ($name:ident, $core:ident, $size:literal, $mask_ty:ty) => {
        pub(crate) struct Constructor;

        impl QuotesImpl for Constructor {
            type Classifier<'i, I>
                = $name<'i, I>
            where
                I: InputBlockIterator<'i, BLOCK_SIZE>;

            #[inline]
            fn new<'i, I>(iter: I) -> Self::Classifier<'i, I>
            where
                I: InputBlockIterator<'i, $size>,
            {
                Self::Classifier {
                    iter,
                    classifier: $core::new(),
                    phantom: PhantomData,
                }
            }

            #[inline]
            fn resume<'i, I>(
                iter: I,
                first_block: Option<I::Block>,
            ) -> ResumedQuoteClassifier<Self::Classifier<'i, I>, I::Block, MaskType, BLOCK_SIZE>
            where
                I: InputBlockIterator<'i, $size>,
            {
                let mut s = Self::Classifier {
                    iter,
                    classifier: $core::new(),
                    phantom: PhantomData,
                };

                let block = first_block.map(|b| {
                    // SAFETY: target feature invariant
                    let mask = unsafe { s.classifier.classify(&b) };
                    QuoteClassifiedBlock {
                        block: b,
                        within_quotes_mask: mask,
                    }
                });

                ResumedQuoteClassifier {
                    classifier: s,
                    first_block: block,
                }
            }
        }

        pub(crate) struct $name<'i, I>
        where
            I: InputBlockIterator<'i, $size>,
        {
            iter: I,
            classifier: $core,
            phantom: PhantomData<&'i ()>,
        }

        impl<'i, I> FallibleIterator for $name<'i, I>
        where
            I: InputBlockIterator<'i, $size>,
        {
            type Item = QuoteClassifiedBlock<I::Block, $mask_ty, $size>;
            type Error = InputError;

            #[inline(always)]
            fn next(&mut self) -> Result<Option<Self::Item>, Self::Error> {
                match self.iter.next().e()? {
                    Some(block) => {
                        // SAFETY: target_feature invariant
                        let mask = unsafe { self.classifier.classify(&block) };
                        let classified_block = QuoteClassifiedBlock {
                            block,
                            within_quotes_mask: mask,
                        };
                        Ok(Some(classified_block))
                    }
                    None => Ok(None),
                }
            }
        }

        impl<'i, I> QuoteClassifiedIterator<'i, I, $mask_ty, $size> for $name<'i, I>
        where
            I: InputBlockIterator<'i, $size>,
        {
            #[inline(always)]
            fn get_offset(&self) -> usize {
                self.iter.get_offset() - $size
            }

            #[inline(always)]
            fn offset(&mut self, count: isize) -> QuoteIterResult<I::Block, $mask_ty, $size> {
                debug_assert!(count > 0);
                debug!("Offsetting by {count}");

                for _ in 0..count - 1 {
                    self.iter.next().e()?;
                }

                self.next()
            }

            #[inline(always)]
            fn flip_quotes_bit(&mut self) {
                self.classifier.internal_classifier.flip_prev_quote_mask();
            }
        }

        impl<'i, I> InnerIter<I> for $name<'i, I>
        where
            I: InputBlockIterator<'i, $size>,
        {
            fn into_inner(self) -> I {
                self.iter
            }
        }
    };
}

#[cfg(any(target_arch = "x86", target_arch = "x86_64", target_arch = "aarch64"))]
pub(crate) use quote_classifier;