fluidattacks-blends-domain 0.6.1

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::syntax::builders::if_statement::build_if_node;
use crate::syntax::fields::python::{elif_clause, if_statement};
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::NodeId;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let condition_id = args
        .required_field_alt(n_id, if_statement::CONDITION)
        .or_else(|_| args.required_field_alt(n_id, elif_clause::CONDITION))?;
    let true_id = args
        .required_field_alt(n_id, if_statement::CONSEQUENCE)
        .or_else(|_| args.required_field_alt(n_id, elif_clause::CONSEQUENCE))?;
    let false_id = args.optional_field_alt(n_id, if_statement::ALTERNATIVE);
    build_if_node(args, n_id, condition_id, Some(true_id), false_id, None).map(Some)
}