fluidattacks-blends-domain 0.23.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::{
    query::{adj_ast, match_ast_d},
    syntax::{
        builders::variable_declaration::build_variable_declaration_node,
        readers::kotlin::class_declaration::extract_modifiers, SyntaxGraphArgs, SyntaxGraphError,
    },
    utilities::text_nodes::node_to_str,
    CodeGraph, NodeId,
};
use alloc::borrow::ToOwned;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;

    let var_dec = match_ast_d(graph, n_id, "variable_declaration", Some(1));

    let var_name = var_dec
        .and_then(|vd| match_ast_d(graph, vd, "identifier", Some(1)))
        .map_or_else(|| "Unnamed".to_owned(), |id| node_to_str(graph, id));

    let var_type = var_dec
        .and_then(|vd| match_ast_d(graph, vd, "user_type", Some(1)))
        .map(|id| node_to_str(graph, id));

    let (_, access_modifiers) = extract_modifiers(graph, n_id);

    let value_id = adj_ast(graph, n_id, Some(1), &[])
        .last()
        .copied()
        .ok_or(SyntaxGraphError::UnexpectedAstShape)?;

    let value = if matches!(
        graph.label_type(value_id),
        Some("property_delegate" | "variable_declaration")
    ) {
        match_ast_d(graph, value_id, "call_expression", Some(1))
    } else {
        Some(value_id)
    };

    build_variable_declaration_node(
        args,
        n_id,
        var_name,
        var_type,
        value,
        None,
        access_modifiers,
    )
    .map(Some)
}