normalize_languages/
devicetree.rs

1//! Device Tree source file support.
2
3use crate::{ContainerBody, Import, Language, LanguageSymbols};
4use tree_sitter::Node;
5
6/// Device Tree language support.
7pub struct DeviceTree;
8
9impl Language for DeviceTree {
10    fn name(&self) -> &'static str {
11        "DeviceTree"
12    }
13    fn extensions(&self) -> &'static [&'static str] {
14        &["dts", "dtsi"]
15    }
16    fn grammar_name(&self) -> &'static str {
17        "devicetree"
18    }
19
20    fn as_symbols(&self) -> Option<&dyn LanguageSymbols> {
21        Some(self)
22    }
23
24    fn extract_imports(&self, node: &Node, content: &str) -> Vec<Import> {
25        if node.kind() != "preproc_include" {
26            return Vec::new();
27        }
28
29        let text = &content[node.byte_range()];
30        let module = text
31            .split('"')
32            .nth(1)
33            .or_else(|| text.split('<').nth(1).and_then(|s| s.split('>').next()))
34            .map(|s| s.to_string());
35
36        if let Some(module) = module {
37            return vec![Import {
38                module,
39                names: Vec::new(),
40                alias: None,
41                is_wildcard: false,
42                is_relative: text.contains('"'),
43                line: node.start_position().row + 1,
44            }];
45        }
46        Vec::new()
47    }
48
49    fn format_import(&self, import: &Import, _names: Option<&[&str]>) -> String {
50        // Device Tree: /include/ "file.dtsi"
51        format!("/include/ \"{}\"", import.module)
52    }
53
54    fn container_body<'a>(&self, node: &'a Node<'a>) -> Option<Node<'a>> {
55        // DeviceTree node spans "identifier { ... };" — use node itself for brace analysis
56        Some(*node)
57    }
58
59    fn analyze_container_body(
60        &self,
61        body_node: &Node,
62        content: &str,
63        inner_indent: &str,
64    ) -> Option<ContainerBody> {
65        // node: "identifier { properties... }" — brace-delimited body
66        crate::body::analyze_brace_body(body_node, content, inner_indent)
67    }
68}
69
70impl LanguageSymbols for DeviceTree {}
71
72#[cfg(test)]
73mod tests {
74    use super::*;
75    use crate::validate_unused_kinds_audit;
76
77    #[test]
78    fn unused_node_kinds_audit() {
79        #[rustfmt::skip]
80        let documented_unused: &[&str] = &[
81            // Preprocessor
82            "preproc_if", "preproc_ifdef", "preproc_else", "preproc_elif",
83            "preproc_elifdef", "preproc_function_def",
84            // Expressions
85            "unary_expression", "binary_expression", "conditional_expression",
86            "parenthesized_expression", "call_expression",
87            // Other
88            "identifier", "omit_if_no_ref",
89        ];
90        validate_unused_kinds_audit(&DeviceTree, documented_unused)
91            .expect("DeviceTree unused node kinds audit failed");
92    }
93}
normalize_languages/devicetree.rs

normalize_languages/
devicetree.rs
