fluidattacks-blends-domain 0.3.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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//! Counterpart of `blends/syntax/readers/json/string_node.py`.

use alloc::borrow::ToOwned;

use crate::query::{label_text, match_ast_d};
use crate::syntax::builders::string_literal::build_string_literal_node;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::utilities::text_nodes::node_to_str;
use crate::NodeId;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;
    let value = match_ast_d(graph, n_id, "string_content", None)
        .and_then(|value_id| label_text(graph, value_id))
        .filter(|text| !text.is_empty())
        .map_or_else(|| node_to_str(graph, n_id), ToOwned::to_owned);
    Ok(Some(build_string_literal_node(args, n_id, value, &[])?))
}