fluidattacks-blends-domain 0.3.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::syntax::builders::parameter::build_parameter_node;
use crate::syntax::fields::c_sharp::catch_declaration;
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 variable = args
        .optional_field_alt(n_id, catch_declaration::NAME)
        .map_or_else(
            || node_to_str(graph, n_id),
            |name_id| node_to_str(graph, name_id),
        );
    let variable_type = args
        .required_field_alt(n_id, catch_declaration::TYPE)
        .ok()
        .map(|type_id| node_to_str(graph, type_id));
    build_parameter_node(
        args,
        n_id,
        Some(variable),
        variable_type,
        None,
        &[],
        None,
        None,
    )
    .map(Some)
}