normalize-languages 0.3.1

Tree-sitter language support and dynamic grammar loading
Documentation 
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//! CMake language support.

use crate::{ContainerBody, Import, Language, LanguageSymbols};
use tree_sitter::Node;

/// CMake language support.
pub struct CMake;

impl Language for CMake {
    fn name(&self) -> &'static str {
        "CMake"
    }
    fn extensions(&self) -> &'static [&'static str] {
        &["cmake"]
    }
    fn grammar_name(&self) -> &'static str {
        "cmake"
    }

    fn as_symbols(&self) -> Option<&dyn LanguageSymbols> {
        Some(self)
    }

    fn extract_imports(&self, node: &Node, content: &str) -> Vec<Import> {
        if node.kind() != "normal_command" {
            return Vec::new();
        }

        let text = &content[node.byte_range()];
        let line = node.start_position().row + 1;

        // include(file), find_package(pkg)
        if text.starts_with("include(") || text.starts_with("find_package(") {
            let inner = text
                .split('(')
                .nth(1)
                .and_then(|s| s.split(')').next())
                .map(|s| s.trim().to_string());

            if let Some(module) = inner {
                return vec![Import {
                    module,
                    names: Vec::new(),
                    alias: None,
                    is_wildcard: false,
                    is_relative: text.starts_with("include("),
                    line,
                }];
            }
        }

        Vec::new()
    }

    fn format_import(&self, import: &Import, _names: Option<&[&str]>) -> String {
        // CMake: include(file) or find_package(pkg)
        format!("include({})", import.module)
    }

    fn container_body<'a>(&self, node: &'a Node<'a>) -> Option<Node<'a>> {
        // CMake function_def/macro_def: body is an unnamed child of kind "body"
        let mut c = node.walk();
        node.children(&mut c).find(|&child| child.kind() == "body")
    }

    fn analyze_container_body(
        &self,
        body_node: &Node,
        content: &str,
        inner_indent: &str,
    ) -> Option<ContainerBody> {
        // body node: "\n  message(...)\n  set(...)" — raw statements after opening newline
        crate::body::analyze_end_body(body_node, content, inner_indent)
    }

    fn node_name<'a>(&self, node: &Node, content: &'a str) -> Option<&'a str> {
        // function(name args...) - name is first argument
        let mut cursor = node.walk();
        for child in node.children(&mut cursor) {
            if child.kind() == "argument" {
                return Some(&content[child.byte_range()]);
            }
        }
        None
    }
}

impl LanguageSymbols for CMake {}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::validate_unused_kinds_audit;

    #[test]
    fn unused_node_kinds_audit() {
        #[rustfmt::skip]
        let documented_unused: &[&str] = &[
            "block", "block_command", "block_def", "body", "else", "else_command",
            "elseif", "endblock", "endblock_command", "endforeach", "endforeach_command",
            "endfunction", "endfunction_command", "endif", "endif_command", "endwhile",
            "endwhile_command", "foreach", "foreach_command", "function",
            "identifier", "if", "if_command", "while",
            "while_command",
            // control flow — not extracted as symbols
            "if_condition",
            "foreach_loop",
            "while_loop",
            "elseif_command",
        ];
        validate_unused_kinds_audit(&CMake, documented_unused)
            .expect("CMake unused node kinds audit failed");
    }
}