fluidattacks-blends-domain 0.30.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::query::match_ast;
use crate::syntax::builders::method_declaration::{
    build_method_declaration_node, MethodDirectChildren, MethodListChildren,
};
use crate::syntax::fields::go::method_elem;
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 name_id = args.required_field_alt(n_id, method_elem::NAME)?;
    let parameters_id = args.required_field_alt(n_id, method_elem::PARAMETERS)?;
    let name = Some(node_to_str(graph, name_id));

    // Interface methods have no body, so `block_id` stays `None`.
    let direct = MethodDirectChildren {
        block_id: None,
        modifiers_id: None,
        parameters_id: match_ast(graph, parameters_id, &["(", ")"], None)
            .contains_key("__0__")
            .then_some(parameters_id),
    };

    build_method_declaration_node(
        args,
        n_id,
        name,
        &direct,
        &MethodListChildren::default(),
        None,
    )
    .map(Some)
}