fluidattacks-blends-domain 0.6.1

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::Field;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::utilities::text_nodes::node_to_str;
use crate::NodeId;

const NAME: Field<false> = Field::new("name_id");
const BODY: Field<false> = Field::new("body_id");
const PARAMETERS: Field<false> = Field::new("parameters_id");
const DECORATOR: Field<false> = Field::new("decorator_id");

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;

    let name = args
        .optional_field_alt(n_id, NAME)
        .map(|name_id| node_to_str(graph, name_id));
    let block_id = args.optional_field_alt(n_id, BODY);
    let parameters_id = args.optional_field_alt(n_id, PARAMETERS);
    let modifiers_id = args.optional_field_alt(n_id, DECORATOR);

    let direct = MethodDirectChildren {
        block_id,
        modifiers_id,
        parameters_id: parameters_id
            .filter(|&params| match_ast(graph, params, &["(", ")"], None).contains_key("__0__")),
    };

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