fluidattacks-blends-domain 0.6.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::syntax::builders::unary_expression::build_unary_expression_node;
use crate::syntax::fields::c_sharp::unary_expression;
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 operand_id = args.required_field_alt(n_id, unary_expression::ARGUMENT)?;
    let operator = node_to_str(
        graph,
        args.required_field_alt(n_id, unary_expression::OPERATOR)?,
    );
    build_unary_expression_node(args, n_id, operator, operand_id).map(Some)
}