mech-math 0.3.3

Math library for the Mech language
Documentation 
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use crate::*;
use mech_core::*;
use libm::{copysign,copysignf};
use num_traits::*;
#[cfg(feature = "matrix")]
use mech_core::matrix::Matrix;

// Copysign ------------------------------------------------------------------------

macro_rules! copysign_op {
  ($arg1:expr, $arg2:expr, $out:expr) => {
    unsafe{(*$out) = copysign((*$arg1),(*$arg2));}
  };}

macro_rules! copysign_vec_op {
  ($arg1:expr, $arg2:expr, $out:expr) => {
    unsafe {
      let arg1_deref = &(*$arg1);
      let arg2_deref = &(*$arg2);
      let mut out_deref = (&mut *$out);
      for i in 0..arg1_deref.len() {
        (out_deref[i]) = copysign(arg1_deref[i],arg2_deref[i]);
      }}};}

macro_rules! copysignf_op {
  ($arg1:expr, $arg2:expr, $out:expr) => {
    unsafe{(*$out) = copysignf((*$arg1),(*$arg2));}
  };}

macro_rules! copysignf_vec_op {
  ($arg1:expr, $arg2:expr, $out:expr) => {
    unsafe {
      let arg1_deref = &(*$arg1);
      let arg2_deref = &(*$arg2);
      let mut out_deref = (&mut *$out);
      for i in 0..arg1_deref.len() {
        (out_deref[i]) = copysignf(arg1_deref[i],arg2_deref[i]);
      }}};}

macro_rules! impl_two_arg_fxn {
  ($struct_name:ident, $kind1:ty, $kind2:ty, $out_kind:ty, $op:ident) => {
    #[derive(Debug)]
    struct $struct_name {
      arg1: Ref<$kind1>,
      arg2: Ref<$kind2>,
      out: Ref<$out_kind>,
    }
    impl MechFunctionImpl for $struct_name {
      fn solve(&self) {
        let arg1_ptr = self.arg1.as_ptr();
        let arg2_ptr = self.arg2.as_ptr();
        let out_ptr = self.out.as_mut_ptr();
        $op!(arg1_ptr,arg2_ptr,out_ptr);
      }
      fn out(&self) -> Value { self.out.to_value() }
      fn to_string(&self) -> String { format!("{:#?}", self) }
    }
    #[cfg(feature = "compiler")]
    impl MechFunctionCompiler for $struct_name {
      fn compile(&self, ctx: &mut CompileCtx) -> MResult<Register> {
        todo!();
      }
    }};}

#[cfg(all(feature = "f32", feature = "matrix1"))]
impl_two_arg_fxn!(CopysignM1F32, Matrix1<f32>, Matrix1<f32>, Matrix1<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "matrix2"))]
impl_two_arg_fxn!(CopysignM2F32, Matrix2<f32>, Matrix2<f32>, Matrix2<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "matrix3"))]
impl_two_arg_fxn!(CopysignM3F32, Matrix3<f32>, Matrix3<f32>, Matrix3<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "matrix2x3"))]
impl_two_arg_fxn!(CopysignM2x3F32, Matrix2x3<f32>, Matrix2x3<f32>, Matrix2x3<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "matrix3"))]
impl_two_arg_fxn!(CopysignM3x2F32, Matrix3x2<f32>, Matrix3x2<f32>, Matrix3x2<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "matrix4"))]
impl_two_arg_fxn!(CopysignM4F32, Matrix4<f32>, Matrix4<f32>, Matrix4<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "vector2"))]
impl_two_arg_fxn!(CopysignV2F32, Vector2<f32>, Vector2<f32>, Vector2<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "vector3"))]
impl_two_arg_fxn!(CopysignV3F32, Vector3<f32>, Vector3<f32>, Vector3<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "vector4"))]
impl_two_arg_fxn!(CopysignV4F32, Vector4<f32>, Vector4<f32>, Vector4<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "row_vector2"))]
impl_two_arg_fxn!(CopysignR2F32, RowVector2<f32>, RowVector2<f32>, RowVector2<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "row_vector3"))]
impl_two_arg_fxn!(CopysignR3F32, RowVector3<f32>, RowVector3<f32>, RowVector3<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "row_vector4"))]
impl_two_arg_fxn!(CopysignR4F32, RowVector4<f32>, RowVector4<f32>, RowVector4<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "row_vectord"))]
impl_two_arg_fxn!(CopysignRDF32, RowDVector<f32>, RowDVector<f32>, RowDVector<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "vectord"))]
impl_two_arg_fxn!(CopysignVDF32, DVector<f32>, DVector<f32>, DVector<f32>, copysignf_vec_op);
#[cfg(all(feature = "f32", feature = "matrixd"))]
impl_two_arg_fxn!(CopysignMDF32, DMatrix<f32>, DMatrix<f32>, DMatrix<f32>, copysignf_vec_op);

#[cfg(feature = "f32")]
impl_two_arg_fxn!(CopysignF32, f32, f32, f32, copysignf_op);

#[cfg(all(feature = "f64", feature = "matrix1"))]
impl_two_arg_fxn!(CopysignM1F64, Matrix1<f64>, Matrix1<f64>, Matrix1<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "matrix2"))]
impl_two_arg_fxn!(CopysignM2F64, Matrix2<f64>, Matrix2<f64>, Matrix2<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "matrix3"))]
impl_two_arg_fxn!(CopysignM3F64, Matrix3<f64>, Matrix3<f64>, Matrix3<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "matrix2x3"))]
impl_two_arg_fxn!(CopysignM2x3F64, Matrix2x3<f64>, Matrix2x3<f64>, Matrix2x3<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "matrix3"))]
impl_two_arg_fxn!(CopysignM3x2F64, Matrix3x2<f64>, Matrix3x2<f64>, Matrix3x2<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "matrix4"))]
impl_two_arg_fxn!(CopysignM4F64, Matrix4<f64>, Matrix4<f64>, Matrix4<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "vector2"))]
impl_two_arg_fxn!(CopysignV2F64, Vector2<f64>, Vector2<f64>, Vector2<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "vector3"))]
impl_two_arg_fxn!(CopysignV3F64, Vector3<f64>, Vector3<f64>, Vector3<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "vector4"))]
impl_two_arg_fxn!(CopysignV4F64, Vector4<f64>, Vector4<f64>, Vector4<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "row_vector2"))]
impl_two_arg_fxn!(CopysignR2F64, RowVector2<f64>, RowVector2<f64>, RowVector2<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "row_vector3"))]
impl_two_arg_fxn!(CopysignR3F64, RowVector3<f64>, RowVector3<f64>, RowVector3<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "row_vector4"))]
impl_two_arg_fxn!(CopysignR4F64, RowVector4<f64>, RowVector4<f64>, RowVector4<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "row_vectord"))]
impl_two_arg_fxn!(CopysignRDF64, RowDVector<f64>, RowDVector<f64>, RowDVector<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "vectord"))]
impl_two_arg_fxn!(CopysignVDF64, DVector<f64>, DVector<f64>, DVector<f64>, copysign_vec_op);
#[cfg(all(feature = "f64", feature = "matrixd"))]
impl_two_arg_fxn!(CopysignMDF64, DMatrix<f64>, DMatrix<f64>, DMatrix<f64>, copysign_vec_op);

#[cfg(feature = "f64")]
impl_two_arg_fxn!(CopysignF64, f64, f64, f64, copysign_op);

fn impl_copysign_fxn(arg1_value: Value, arg2_value: Value) -> MResult<Box<dyn MechFunction>> {
  match (arg1_value,arg2_value) {
    #[cfg(feature = "f32")]
    (Value::F32(arg1),Value::F32(arg2)) => Ok(Box::new(CopysignF32{arg1, arg2, out: Ref::new(f32::zero())})),
    #[cfg(all(feature = "matrix1", feature = "f32"))]
    (Value::MatrixF32(Matrix::Matrix1(arg1)),Value::MatrixF32(Matrix::Matrix1(arg2))) => Ok(Box::new(CopysignM1F32{arg1, arg2, out: Ref::new(Matrix1::from_element(f32::zero()))})),
    #[cfg(all(feature = "matrix2", feature = "f32"))]
    (Value::MatrixF32(Matrix::Matrix2(arg1)),Value::MatrixF32(Matrix::Matrix2(arg2))) => Ok(Box::new(CopysignM2F32{arg1, arg2, out: Ref::new(Matrix2::from_element(f32::zero()))})),
    #[cfg(all(feature = "matrix3", feature = "f32"))]
    (Value::MatrixF32(Matrix::Matrix3(arg1)),Value::MatrixF32(Matrix::Matrix3(arg2))) => Ok(Box::new(CopysignM3F32{arg1, arg2, out: Ref::new(Matrix3::from_element(f32::zero()))})),
    #[cfg(all(feature = "matrix2x3", feature = "f32"))]
    (Value::MatrixF32(Matrix::Matrix2x3(arg1)),Value::MatrixF32(Matrix::Matrix2x3(arg2))) => Ok(Box::new(CopysignM2x3F32{arg1, arg2, out: Ref::new(Matrix2x3::from_element(f32::zero()))})),
    #[cfg(all(feature = "matrix3", feature = "f32"))]
    (Value::MatrixF32(Matrix::Matrix3x2(arg1)),Value::MatrixF32(Matrix::Matrix3x2(arg2))) => Ok(Box::new(CopysignM3x2F32{arg1, arg2, out: Ref::new(Matrix3x2::from_element(f32::zero()))})),
    #[cfg(all(feature = "matrix4", feature = "f32"))]
    (Value::MatrixF32(Matrix::Matrix4(arg1)),Value::MatrixF32(Matrix::Matrix4(arg2))) => Ok(Box::new(CopysignM4F32{arg1, arg2, out: Ref::new(Matrix4::from_element(f32::zero()))})),
    #[cfg(all(feature = "vector2", feature = "f32"))]
    (Value::MatrixF32(Matrix::Vector2(arg1)),Value::MatrixF32(Matrix::Vector2(arg2))) => Ok(Box::new(CopysignV2F32{arg1, arg2, out: Ref::new(Vector2::from_element(f32::zero()))})),
    #[cfg(all(feature = "vector3", feature = "f32"))]
    (Value::MatrixF32(Matrix::Vector3(arg1)),Value::MatrixF32(Matrix::Vector3(arg2))) => Ok(Box::new(CopysignV3F32{arg1, arg2, out: Ref::new(Vector3::from_element(f32::zero()))})),
    #[cfg(all(feature = "vector4", feature = "f32"))]
    (Value::MatrixF32(Matrix::Vector4(arg1)),Value::MatrixF32(Matrix::Vector4(arg2))) => Ok(Box::new(CopysignV4F32{arg1, arg2, out: Ref::new(Vector4::from_element(f32::zero()))})),
    #[cfg(all(feature = "row_vector2", feature = "f32"))]
    (Value::MatrixF32(Matrix::RowVector2(arg1)),Value::MatrixF32(Matrix::RowVector2(arg2))) => Ok(Box::new(CopysignR2F32{arg1, arg2, out: Ref::new(RowVector2::from_element(f32::zero()))})),
    #[cfg(all(feature = "row_vector3", feature = "f32"))]
    (Value::MatrixF32(Matrix::RowVector3(arg1)),Value::MatrixF32(Matrix::RowVector3(arg2))) => Ok(Box::new(CopysignR3F32{arg1, arg2, out: Ref::new(RowVector3::from_element(f32::zero()))})),
    #[cfg(all(feature = "row_vector4", feature = "f32"))]
    (Value::MatrixF32(Matrix::RowVector4(arg1)),Value::MatrixF32(Matrix::RowVector4(arg2))) => Ok(Box::new(CopysignR4F32{arg1, arg2, out: Ref::new(RowVector4::from_element(f32::zero()))})),
    #[cfg(all(feature = "row_vectord", feature = "f32"))]
    (Value::MatrixF32(Matrix::RowDVector(arg1)),Value::MatrixF32(Matrix::RowDVector(arg2))) => Ok(Box::new(CopysignRDF32{arg1: arg1.clone(), arg2, out: Ref::new(RowDVector::from_element(arg1.borrow().ncols(),f32::zero()))})),
    #[cfg(all(feature = "vectord", feature = "f32"))]
    (Value::MatrixF32(Matrix::DVector(arg1)),Value::MatrixF32(Matrix::DVector(arg2))) => Ok(Box::new(CopysignVDF32{arg1: arg1.clone(), arg2, out: Ref::new(DVector::from_element(arg1.borrow().nrows(),f32::zero()))})),
    #[cfg(all(feature = "matrixd", feature = "f32"))]
    (Value::MatrixF32(Matrix::DMatrix(arg1)),Value::MatrixF32(Matrix::DMatrix(arg2))) => {
      let rows = arg1.borrow().nrows();
      let cols = arg1.borrow().ncols();
      Ok(Box::new(CopysignMDF32{arg1, arg2, out: Ref::new(DMatrix::from_element(rows,cols,f32::zero()))}))
    },
    #[cfg(feature = "f64")]
    (Value::F64(arg1),Value::F64(arg2)) => Ok(Box::new(CopysignF64{arg1, arg2, out: Ref::new(f64::zero())})),
    #[cfg(all(feature = "matrix1", feature = "f64"))]
    (Value::MatrixF64(Matrix::Matrix1(arg1)),Value::MatrixF64(Matrix::Matrix1(arg2))) => Ok(Box::new(CopysignM1F64{arg1, arg2, out: Ref::new(Matrix1::from_element(f64::zero()))})),
    #[cfg(all(feature = "matrix2", feature = "f64"))]
    (Value::MatrixF64(Matrix::Matrix2(arg1)),Value::MatrixF64(Matrix::Matrix2(arg2))) => Ok(Box::new(CopysignM2F64{arg1, arg2, out: Ref::new(Matrix2::from_element(f64::zero()))})),
    #[cfg(all(feature = "matrix3", feature = "f64"))]
    (Value::MatrixF64(Matrix::Matrix3(arg1)),Value::MatrixF64(Matrix::Matrix3(arg2))) => Ok(Box::new(CopysignM3F64{arg1, arg2, out: Ref::new(Matrix3::from_element(f64::zero()))})),
    #[cfg(all(feature = "matrix2x3", feature = "f64"))]
    (Value::MatrixF64(Matrix::Matrix2x3(arg1)),Value::MatrixF64(Matrix::Matrix2x3(arg2))) => Ok(Box::new(CopysignM2x3F64{arg1, arg2, out: Ref::new(Matrix2x3::from_element(f64::zero()))})),
    #[cfg(all(feature = "matrix3", feature = "f64"))]
    (Value::MatrixF64(Matrix::Matrix3x2(arg1)),Value::MatrixF64(Matrix::Matrix3x2(arg2))) => Ok(Box::new(CopysignM3x2F64{arg1, arg2, out: Ref::new(Matrix3x2::from_element(f64::zero()))})),
    #[cfg(all(feature = "matrix4", feature = "f64"))]
    (Value::MatrixF64(Matrix::Matrix4(arg1)),Value::MatrixF64(Matrix::Matrix4(arg2))) => Ok(Box::new(CopysignM4F64{arg1, arg2, out: Ref::new(Matrix4::from_element(f64::zero()))})),
    #[cfg(all(feature = "vector2", feature = "f64"))]
    (Value::MatrixF64(Matrix::Vector2(arg1)),Value::MatrixF64(Matrix::Vector2(arg2))) => Ok(Box::new(CopysignV2F64{arg1, arg2, out: Ref::new(Vector2::from_element(f64::zero()))})),
    #[cfg(all(feature = "vector3", feature = "f64"))]
    (Value::MatrixF64(Matrix::Vector3(arg1)),Value::MatrixF64(Matrix::Vector3(arg2))) => Ok(Box::new(CopysignV3F64{arg1, arg2, out: Ref::new(Vector3::from_element(f64::zero()))})),
    #[cfg(all(feature = "vector4", feature = "f64"))]
    (Value::MatrixF64(Matrix::Vector4(arg1)),Value::MatrixF64(Matrix::Vector4(arg2))) => Ok(Box::new(CopysignV4F64{arg1, arg2, out: Ref::new(Vector4::from_element(f64::zero()))})),
    #[cfg(all(feature = "row_vector2", feature = "f64"))]
    (Value::MatrixF64(Matrix::RowVector2(arg1)),Value::MatrixF64(Matrix::RowVector2(arg2))) => Ok(Box::new(CopysignR2F64{arg1, arg2, out: Ref::new(RowVector2::from_element(f64::zero()))})),
    #[cfg(all(feature = "row_vector3", feature = "f64"))]
    (Value::MatrixF64(Matrix::RowVector3(arg1)),Value::MatrixF64(Matrix::RowVector3(arg2))) => Ok(Box::new(CopysignR3F64{arg1, arg2, out: Ref::new(RowVector3::from_element(f64::zero()))})),
    #[cfg(all(feature = "row_vector4", feature = "f64"))]
    (Value::MatrixF64(Matrix::RowVector4(arg1)),Value::MatrixF64(Matrix::RowVector4(arg2))) => Ok(Box::new(CopysignR4F64{arg1, arg2, out: Ref::new(RowVector4::from_element(f64::zero()))})),
    #[cfg(all(feature = "row_vectord", feature = "f64"))]
    (Value::MatrixF64(Matrix::RowDVector(arg1)),Value::MatrixF64(Matrix::RowDVector(arg2))) => Ok(Box::new(CopysignRDF64{arg1: arg1.clone(), arg2, out: Ref::new(RowDVector::from_element(arg1.borrow().ncols(),f64::zero()))})),
    #[cfg(all(feature = "vectord", feature = "f64"))]
    (Value::MatrixF64(Matrix::DVector(arg1)),Value::MatrixF64(Matrix::DVector(arg2))) => Ok(Box::new(CopysignVDF64{arg1: arg1.clone(), arg2, out: Ref::new(DVector::from_element(arg1.borrow().nrows(),f64::zero()))})),
    #[cfg(all(feature = "matrixd", feature = "f64"))]
    (Value::MatrixF64(Matrix::DMatrix(arg1)),Value::MatrixF64(Matrix::DMatrix(arg2))) => {
      let rows = arg1.borrow().nrows();
      let cols = arg1.borrow().ncols();
      Ok(Box::new(CopysignMDF64{arg1, arg2, out: Ref::new(DMatrix::from_element(rows,cols,f64::zero()))}))
    },
    (arg1,arg2) => Err(MechError::new(
        UnhandledFunctionArgumentKind2 { arg: (arg1.kind(),arg2.kind()), fxn_name: "math/copysign".to_string() },
        None
      ).with_compiler_loc()
    ),
  }
}

pub struct MathCopysign {}

impl NativeFunctionCompiler for MathCopysign {
  fn compile(&self, arguments: &Vec<Value>) -> MResult<Box<dyn MechFunction>> {
    if arguments.len() != 2 {
      return Err(MechError::new(IncorrectNumberOfArguments { expected: 1, found: arguments.len() },None).with_compiler_loc());
    }
    let arg1 = arguments[0].clone();
    let arg2 = arguments[1].clone();
    match impl_copysign_fxn(arg1.clone(), arg2.clone()) {
      Ok(fxn) => Ok(fxn),
      Err(_) => {
        match (arg1,arg2) {
          (Value::MutableReference(arg1),Value::MutableReference(arg2)) => {impl_copysign_fxn(arg1.borrow().clone(),arg2.borrow().clone())}
          (Value::MutableReference(arg1),arg2) => {impl_copysign_fxn(arg1.borrow().clone(),arg2.clone())}
          (arg1,Value::MutableReference(arg2)) => {impl_copysign_fxn(arg1.clone(),arg2.borrow().clone())}
          (arg1,arg2) => Err(MechError::new(
              UnhandledFunctionArgumentKind2 { arg: (arg1.kind(),arg2.kind()), fxn_name: "math/copysign".to_string() },
              None
            ).with_compiler_loc()
          ),
        }
      }
    }
  }
}

register_descriptor! {
  FunctionCompilerDescriptor {
    name: "math/copysign",
    ptr: &MathCopysign{},
  }
}