perseus/template/
states.rs

1use crate::errors::*;
2use crate::state::TemplateState;
3
4/// Represents all the different states that can be generated for a single
5/// template, allowing amalgamation logic to be run with the knowledge
6/// of what did what (rather than blindly working on a vector).
7#[derive(Debug)]
8pub(crate) struct States {
9    /// Any state generated by the *build state* strategy.
10    pub build_state: TemplateState,
11    /// Any state generated by the *request state* strategy.
12    pub request_state: TemplateState,
13}
14impl States {
15    /// Checks if both request state and build state are defined.
16    pub fn both_defined(&self) -> bool {
17        !self.build_state.is_empty() && !self.request_state.is_empty()
18    }
19    /// Gets the only defined state if only one is defined. If no states are
20    /// defined, this will just return `None`. If both are defined,
21    /// this will return an error. (Under no other conditions may this
22    /// ever return an error.)
23    pub fn get_defined(&self) -> Result<TemplateState, ServeError> {
24        if self.both_defined() {
25            return Err(ServeError::BothStatesDefined);
26        }
27
28        if !self.build_state.is_empty() {
29            Ok(self.build_state.clone())
30        } else if !self.request_state.is_empty() {
31            Ok(self.request_state.clone())
32        } else {
33            Ok(TemplateState::empty())
34        }
35    }
36}
perseus/template/states.rs

perseus/template/
states.rs
