rssn 0.2.9

A comprehensive scientific computing library for Rust, aiming for feature parity with NumPy and SymPy.
Documentation 
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use crate::ffi_apis::common::BincodeBuffer;
use crate::ffi_apis::common::from_bincode_buffer;
use crate::ffi_apis::common::to_bincode_buffer;
use crate::ffi_apis::symbolic_graph_operations_ffi::handle::convert_expr_graph_to_string_graph;
use crate::symbolic::graph::Graph;
use crate::symbolic::graph_operations::cartesian_product;
use crate::symbolic::graph_operations::complement;
use crate::symbolic::graph_operations::disjoint_union;
use crate::symbolic::graph_operations::induced_subgraph;
use crate::symbolic::graph_operations::intersection;
use crate::symbolic::graph_operations::join;
use crate::symbolic::graph_operations::tensor_product;
use crate::symbolic::graph_operations::union;

/// Creates an induced subgraph.
///
/// # Safety
///
/// This function is unsafe because it dereferences raw pointers as part of the FFI boundary.
/// The caller must ensure:
/// 1. All pointer arguments are valid and point to initialized memory.
/// 2. The memory layout of passed structures matches the expected C-ABI layout.
/// 3. Any pointers returned by this function are managed according to the API's ownership rules.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rssn_bincode_graph_induced_subgraph(
    input_buf: BincodeBuffer
) -> BincodeBuffer {
    #[derive(serde::Deserialize)]
    struct Input {
        graph: Graph<String>,
        nodes: Vec<String>,
    }

    let input: Input = match from_bincode_buffer(&input_buf) {
        | Some(i) => i,
        | None => return BincodeBuffer::empty(),
    };

    let result = induced_subgraph(&input.graph, &input.nodes);

    to_bincode_buffer(&result)
}

/// Computes the union of two graphs.
///
/// # Safety
///
/// This function is unsafe because it dereferences raw pointers as part of the FFI boundary.
/// The caller must ensure:
/// 1. All pointer arguments are valid and point to initialized memory.
/// 2. The memory layout of passed structures matches the expected C-ABI layout.
/// 3. Any pointers returned by this function are managed according to the API's ownership rules.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rssn_bincode_graph_union(input_buf: BincodeBuffer) -> BincodeBuffer {
    #[derive(serde::Deserialize)]
    struct Input {
        g1: Graph<String>,
        g2: Graph<String>,
    }

    let input: Input = match from_bincode_buffer(&input_buf) {
        | Some(i) => i,
        | None => return BincodeBuffer::empty(),
    };

    let result = union(&input.g1, &input.g2);

    to_bincode_buffer(&result)
}

/// Computes the intersection of two graphs.
///
/// # Safety
///
/// This function is unsafe because it dereferences raw pointers as part of the FFI boundary.
/// The caller must ensure:
/// 1. All pointer arguments are valid and point to initialized memory.
/// 2. The memory layout of passed structures matches the expected C-ABI layout.
/// 3. Any pointers returned by this function are managed according to the API's ownership rules.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rssn_bincode_graph_intersection(
    input_buf: BincodeBuffer
) -> BincodeBuffer {
    #[derive(serde::Deserialize)]
    struct Input {
        g1: Graph<String>,
        g2: Graph<String>,
    }

    let input: Input = match from_bincode_buffer(&input_buf) {
        | Some(i) => i,
        | None => return BincodeBuffer::empty(),
    };

    let result = intersection(&input.g1, &input.g2);

    to_bincode_buffer(&result)
}

/// Computes the Cartesian product of two graphs.
///
/// # Safety
///
/// This function is unsafe because it dereferences raw pointers as part of the FFI boundary.
/// The caller must ensure:
/// 1. All pointer arguments are valid and point to initialized memory.
/// 2. The memory layout of passed structures matches the expected C-ABI layout.
/// 3. Any pointers returned by this function are managed according to the API's ownership rules.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rssn_bincode_graph_cartesian_product(
    input_buf: BincodeBuffer
) -> BincodeBuffer {
    #[derive(serde::Deserialize)]
    struct Input {
        g1: Graph<String>,
        g2: Graph<String>,
    }

    let input: Input = match from_bincode_buffer(&input_buf) {
        | Some(i) => i,
        | None => return BincodeBuffer::empty(),
    };

    let result_expr = cartesian_product(&input.g1, &input.g2);

    let result = convert_expr_graph_to_string_graph(&result_expr);

    to_bincode_buffer(&result)
}

/// Computes the Tensor product of two graphs.
///
/// # Safety
///
/// This function is unsafe because it dereferences raw pointers as part of the FFI boundary.
/// The caller must ensure:
/// 1. All pointer arguments are valid and point to initialized memory.
/// 2. The memory layout of passed structures matches the expected C-ABI layout.
/// 3. Any pointers returned by this function are managed according to the API's ownership rules.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rssn_bincode_graph_tensor_product(
    input_buf: BincodeBuffer
) -> BincodeBuffer {
    #[derive(serde::Deserialize)]
    struct Input {
        g1: Graph<String>,
        g2: Graph<String>,
    }

    let input: Input = match from_bincode_buffer(&input_buf) {
        | Some(i) => i,
        | None => return BincodeBuffer::empty(),
    };

    let result_expr = tensor_product(&input.g1, &input.g2);

    let result = convert_expr_graph_to_string_graph(&result_expr);

    to_bincode_buffer(&result)
}

/// Computes the complement of a graph.
///
/// # Safety
///
/// This function is unsafe because it dereferences raw pointers as part of the FFI boundary.
/// The caller must ensure:
/// 1. All pointer arguments are valid and point to initialized memory.
/// 2. The memory layout of passed structures matches the expected C-ABI layout.
/// 3. Any pointers returned by this function are managed according to the API's ownership rules.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rssn_bincode_graph_complement(graph_buf: BincodeBuffer) -> BincodeBuffer {
    let graph: Graph<String> = match from_bincode_buffer(&graph_buf) {
        | Some(g) => g,
        | None => return BincodeBuffer::empty(),
    };

    let result = complement(&graph);

    to_bincode_buffer(&result)
}

/// Computes the disjoint union of two graphs.
///
/// # Safety
///
/// This function is unsafe because it dereferences raw pointers as part of the FFI boundary.
/// The caller must ensure:
/// 1. All pointer arguments are valid and point to initialized memory.
/// 2. The memory layout of passed structures matches the expected C-ABI layout.
/// 3. Any pointers returned by this function are managed according to the API's ownership rules.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rssn_bincode_graph_disjoint_union(
    input_buf: BincodeBuffer
) -> BincodeBuffer {
    #[derive(serde::Deserialize)]
    struct Input {
        g1: Graph<String>,
        g2: Graph<String>,
    }

    let input: Input = match from_bincode_buffer(&input_buf) {
        | Some(i) => i,
        | None => return BincodeBuffer::empty(),
    };

    let result_expr = disjoint_union(&input.g1, &input.g2);

    let result = convert_expr_graph_to_string_graph(&result_expr);

    to_bincode_buffer(&result)
}

/// Computes the join of two graphs.
///
/// # Safety
///
/// This function is unsafe because it dereferences raw pointers as part of the FFI boundary.
/// The caller must ensure:
/// 1. All pointer arguments are valid and point to initialized memory.
/// 2. The memory layout of passed structures matches the expected C-ABI layout.
/// 3. Any pointers returned by this function are managed according to the API's ownership rules.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rssn_bincode_graph_join(input_buf: BincodeBuffer) -> BincodeBuffer {
    #[derive(serde::Deserialize)]
    struct Input {
        g1: Graph<String>,
        g2: Graph<String>,
    }

    let input: Input = match from_bincode_buffer(&input_buf) {
        | Some(i) => i,
        | None => return BincodeBuffer::empty(),
    };

    let result_expr = join(&input.g1, &input.g2);

    let result = convert_expr_graph_to_string_graph(&result_expr);

    to_bincode_buffer(&result)
}