[Github-comments] [geany] Implementations of same structure not grouped in Rust parser (#728)

[Peter C. S. Scholtens]

Hello,

While trying operator overloading in Rust, I see some unexepected behaviour of Geany. For a structure called ComplexNumber, the implementation of Add and Mul require separate implementation blocks. I expected that Add and Mul would be listed together with print and magnitude. If I try operator overloading in a similar way in C++, the member functions get nicely grouped below the name of the structure, even if they are defined in separate blocks. See the picture and the attached Rust example.

![implementationsrust](https://cloud.githubusercontent.com/assets/7198614/10871318/e51a5f5a-80e3-11e5-987f-4e2fc4c16615.png)



use std::ops::{Add,Mul};

#[derive(Debug,Copy,Clone)]
pub struct ComplexNumber {
    r : f64,
    j : f64
}

impl Add for ComplexNumber{
	type Output = ComplexNumber;

	fn add(self, rhs: ComplexNumber) -> ComplexNumber {
		ComplexNumber {r: self.r+rhs.r, j: self.j+rhs.j}
	}

}

impl Mul for ComplexNumber{
	type Output = ComplexNumber;

	fn mul(self, rhs: ComplexNumber) -> ComplexNumber {
		ComplexNumber {r: self.r*rhs.r-self.j*rhs.j, j: self.r*rhs.j+self.j*rhs.r}
	}

}

impl ComplexNumber {
	fn print(& self) {
		print!("{}+{}i ",self.r,self.j);
	}
	fn magnitude(& self) -> f64 {
		(self.r.powi(2)+self.j.powi(2)).sqrt()
	}
}


fn main()
{
	let a = ComplexNumber {r: 1.0, j: 0.0};
	let b = ComplexNumber {r: 0.0, j: 1.0};
	let c = a + b;
	let d = a * b;
	let e = c + d;
	c.print();
	d.print();
	e.print();
	print!("{} ", e.magnitude());
}





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https://github.com/geany/geany/issues/728
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