fluidattacks-blends-domain 0.22.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::{
    query::label_text,
    syntax::{
        builders::{literal::build_literal_node, symbol_lookup::build_symbol_lookup_node},
        SyntaxGraphArgs, SyntaxGraphError,
    },
    utilities::text_nodes::node_to_str,
    NodeId,
};
use alloc::borrow::ToOwned;

#[expect(
    clippy::unnecessary_wraps,
    reason = "the signature must match the reader dispatch table"
)]
pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;
    let symbol = label_text(graph, n_id)
        .filter(|text| !text.is_empty())
        .map_or_else(|| node_to_str(graph, n_id), str::to_owned);

    if matches!(symbol.as_str(), "false" | "true") {
        return Ok(Some(build_literal_node(
            args,
            n_id,
            symbol,
            "bool".to_owned(),
        )));
    }

    if symbol.as_str() == "null" {
        return Ok(Some(build_literal_node(
            args,
            n_id,
            symbol,
            "null".to_owned(),
        )));
    }

    Ok(Some(build_symbol_lookup_node(args, n_id, symbol)))
}