json_template/context/
mod.rs

1//! Context module.
2
3use std::path::PathBuf;
4
5use serde_json::Value;
6
7use crate::{Deserializer, Functions, GetDot, Placeholder, JSON};
8
9/// Deserialization context.
10#[derive(Default, Clone)]
11pub struct Context {
12    /// JSON data.
13    data: Value,
14    /// Directory.
15    directory: Option<PathBuf>,
16    /// Functions.
17    functions: Functions,
18    /// JSON data being resolved.
19    current: Value
20}
21
22impl Context {
23     /// Create a new template.
24     pub fn new() -> Self {
25        Self::default()
26    }
27
28    /// Set data.
29    pub fn with_data(mut self, data: Value) -> Self {
30        self.data = data.into();
31        self
32    }
33
34    /// Set data.
35    pub fn set_data(&mut self, data: Value) -> &mut Self {
36        self.data = data.into();
37        self
38    }
39
40    /// Get data.
41    pub fn data(&self) -> &Value {
42        &self.data
43    }
44
45    /// Set function.
46    pub fn set_function(&mut self, name: impl AsRef<str>, function: impl Fn(&Deserializer, &Context, &Placeholder) -> serde_json::Result<Value> + 'static) -> &mut Self {
47        self.functions.register(name, function);
48        self
49    }
50
51    /// Set function.
52    pub fn with_function(mut self, name: impl AsRef<str>, function: impl Fn(&Deserializer, &Context, &Placeholder) -> serde_json::Result<Value> + 'static) -> Self {
53        self.set_function(name, function);
54        self
55    }
56
57    /// Get functions.
58    pub fn functions(&self) -> &Functions {
59        &self.functions
60    }
61
62    /// Override data.
63    pub fn with_override(mut self, new_value: Value) -> Self {
64        self.override_data(new_value);
65        self
66    }
67
68    /// Override data.
69    pub fn override_data(&mut self, new_value: Value) -> &mut Self {
70        self.data.override_recursive(new_value);
71        self
72    }
73
74    /// Add data.
75    pub fn with_additional_data(mut self, new_value: Value) -> Self {
76        self.add_data(new_value);
77        self
78    }
79
80    /// Add data.
81    pub fn add_data(&mut self, new_value: Value) -> &mut Self {
82        self.data.add_recursive(new_value);
83        self
84    }
85
86    /// Set directory.
87    pub fn with_directory(mut self, directory: Option<PathBuf>) -> Self {
88        self.directory = directory;
89        self
90    }
91
92    /// Set directory.
93    pub fn set_directory(&mut self, directory: Option<PathBuf>) -> &mut Self {
94        self.directory = directory;
95        self
96    }
97
98    /// Get directory.
99    pub fn directory(&self) -> Option<&PathBuf> {
100        self.directory.as_ref()
101    }
102
103    pub(crate) fn set_current_data(&mut self, current: Value) {
104        self.current = current;
105    }
106
107    /// Find placeholder value.
108    pub fn find(&self, deserializer: &Deserializer, placeholder: &Placeholder) -> serde_json::Result<Value> {
109        self
110            .data
111            .get_dot_deserializing(placeholder.path(), deserializer, self)
112            .or_else(|_| self.current.get_dot_deserializing(placeholder.path(), deserializer, self))
113    }
114}
json_template/context/mod.rs

json_template/context/
mod.rs
