fluidattacks-blends-domain 0.6.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::query::{adj_ast, match_ast, match_ast_d};
use crate::syntax::builders::array_node::build_array_node;
use crate::syntax::fields::java::array_creation_expression;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::NodeId;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;
    let mut array_value = match args.optional_field_alt(n_id, array_creation_expression::VALUE) {
        Some(value_id) => value_id,
        None => adj_ast(graph, n_id, None, &[])
            .last()
            .copied()
            .ok_or(SyntaxGraphError::UnexpectedAstShape)?,
    };

    if let Some(dimensions_id) = match_ast_d(graph, n_id, "dimensions_expr", None) {
        if let Some(inner) = match_ast(graph, dimensions_id, &["[", "]"], None)
            .get("__0__")
            .copied()
            .flatten()
        {
            array_value = inner;
        }
    }

    build_array_node(args, n_id, &[array_value]).map(Some)
}