fluidattacks-blends-domain 0.6.1

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

use crate::syntax::builders::pair::build_pair_node;
use crate::syntax::fields::json::pair;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::NodeId;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let key_id = args.required_field_alt(n_id, pair::KEY)?;
    let value_id = args.required_field_alt(n_id, pair::VALUE)?;
    build_pair_node(args, n_id, key_id, value_id).map(Some)
}