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snarkvm_synthesizer_process/
evaluate.rs

1// Copyright (c) 2019-2026 Provable Inc.
2// This file is part of the snarkVM library.
3
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at:
7
8// http://www.apache.org/licenses/LICENSE-2.0
9
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15
16use super::*;
17use snarkvm_synthesizer_error::*;
18
19impl<N: Network> Process<N> {
20    /// Evaluates a program function on the given request.
21    #[inline]
22    pub fn evaluate<A: circuit::Aleo<Network = N>>(
23        &self,
24        authorization: Authorization<N>,
25    ) -> Result<Response<N>, ProcessEvalError> {
26        let timer = timer!("Process::evaluate");
27
28        // Retrieve the top-level request (without popping it).
29        let request = authorization.peek_next()?;
30
31        dev_println!("{}", format!(" • Evaluating '{}/{}'...", request.program_id(), request.function_name()));
32
33        // Retrieve the stack.
34        let stack = self.get_stack(request.program_id())?;
35        // Initialize an RNG.
36        let rng = &mut rand::thread_rng();
37        // Evaluate the function.
38        let response = stack.evaluate_function::<A, _>(CallStack::evaluate(authorization)?, None, None, rng)?;
39        lap!(timer, "Evaluate the function");
40
41        finish!(timer);
42
43        Ok(response)
44    }
45}