z3 0.12.1

High-level rust bindings for the Z3 SMT solver from Microsoft Research
Documentation 
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use std::fmt;

use ast::Ast;
use z3_sys::*;

use {ast::Dynamic, Context, FuncEntry};

impl<'ctx> FuncEntry<'ctx> {
    pub(crate) unsafe fn wrap(ctx: &'ctx Context, z3_func_entry: Z3_func_entry) -> Self {
        Z3_func_entry_inc_ref(ctx.z3_ctx, z3_func_entry);
        Self { ctx, z3_func_entry }
    }

    /// Returns the value of the function.
    pub fn get_value(&self) -> Dynamic {
        unsafe {
            Dynamic::wrap(
                self.ctx,
                Z3_func_entry_get_value(self.ctx.z3_ctx, self.z3_func_entry),
            )
        }
    }

    /// Returns the number of arguments in the function entry.
    pub fn get_num_args(&self) -> u32 {
        unsafe { Z3_func_entry_get_num_args(self.ctx.z3_ctx, self.z3_func_entry) }
    }

    /// Returns the arguments of the function entry.
    pub fn get_args(&self) -> Vec<Dynamic> {
        (0..self.get_num_args())
            .map(|i| unsafe {
                Dynamic::wrap(
                    self.ctx,
                    Z3_func_entry_get_arg(self.ctx.z3_ctx, self.z3_func_entry, i),
                )
            })
            .collect()
    }
}

impl<'ctx> fmt::Display for FuncEntry<'ctx> {
    fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
        write!(f, "[")?;
        self.get_args()
            .into_iter()
            .try_for_each(|a| write!(f, "{a}, "))?;
        write!(f, "{}", self.get_value())?;
        write!(f, "]")
    }
}

impl<'ctx> fmt::Debug for FuncEntry<'ctx> {
    fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
        <Self as fmt::Display>::fmt(self, f)
    }
}

impl<'ctx> Drop for FuncEntry<'ctx> {
    fn drop(&mut self) {
        unsafe {
            Z3_func_entry_dec_ref(self.ctx.z3_ctx, self.z3_func_entry);
        }
    }
}