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::python::function_definition;
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 = node_to_str(
        graph,
        args.required_field_alt(n_id, function_definition::NAME)?,
    );
    let block_id = args.required_field_alt(n_id, function_definition::BODY)?;
    let parameters_id = args.required_field_alt(n_id, function_definition::PARAMETERS)?;
    let include_params = match_ast(graph, parameters_id, &["(", ")"], None).contains_key("__0__");

    let direct = MethodDirectChildren {
        parameters_id: include_params.then_some(parameters_id),
        block_id: Some(block_id),
        ..MethodDirectChildren::default()
    };
    build_method_declaration_node(
        args,
        n_id,
        Some(name),
        &direct,
        &MethodListChildren::default(),
        None,
    )
    .map(Some)
}