fluidattacks-blends-domain 0.3.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::query::adj_ast;
use crate::syntax::builders::parenthesized_expression::build_parenthesized_expression_node;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::NodeId;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let childs = adj_ast(args.ast_graph, n_id, Some(1), &[]);

    let c_id = if childs.len() == 3 {
        childs.get(1).copied()
    } else {
        childs.iter().nth_back(1).copied()
    }
    .ok_or(SyntaxGraphError::UnexpectedAstShape)?;
    build_parenthesized_expression_node(args, n_id, c_id).map(Some)
}