Method visit_arg

src/extraction/dockerfile_extractor.rs:376–426

Extract ARG instruction as a Const node. `arg_instruction` has a `name` field (the variable name) and an optional `default` field (the default value).

(state: &mut ExtractionState, node: TsNode<'_>)

    /// `arg_instruction` has a `name` field (the variable name) and an optional
    /// `default` field (the default value).
    fn visit_arg(state: &mut ExtractionState, node: TsNode<'_>) {
        let name = match node.child_by_field_name("name") {
            Some(n) => state.node_text(n),
            None => return,
        };

        let start_line = node.start_position().row as u32;
        let end_line = node.end_position().row as u32;
        let start_column = node.start_position().column as u32;
        let end_column = node.end_position().column as u32;
        let text = state.node_text(node);
        let qualified_name = format!("{}::{}", state.qualified_prefix(), name);
        let id = generate_node_id(&state.file_path, &NodeKind::Const, &name, start_line);

        let graph_node = Node {
            id: id.clone(),
            kind: NodeKind::Const,
            name,
            qualified_name,
            file_path: state.file_path.clone(),
            start_line,
            attrs_start_line: start_line,
            end_line,
            start_column,
            end_column,
            signature: Some(text.trim().to_string()),
            docstring: None,
            visibility: Visibility::Pub,
            is_async: false,
            branches: 0,
            loops: 0,
            returns: 0,
            max_nesting: 0,
            unsafe_blocks: 0,
            unchecked_calls: 0,
            assertions: 0,
            updated_at: state.timestamp,
            parent_id: None,
        };
        state.nodes.push(graph_node);

        // Contains edge from parent.
        if let Some(parent_id) = state.parent_node_id() {
            state.edges.push(Edge {
                source: parent_id.to_string(),
                target: id,
                kind: EdgeKind::Contains,
                line: Some(start_line),
            });
        }
    }

    /// Extract EXPOSE instruction ports as Field nodes.
    fn visit_expose(state: &mut ExtractionState, node: TsNode<'_>) {