fluidattacks-blends-domain 0.6.1

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use alloc::borrow::ToOwned;

use crate::syntax::builders::binary_operation::build_binary_operation_node;
use crate::syntax::fields::java::instanceof_expression;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::NodeId;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let left_id = args.required_field_alt(n_id, instanceof_expression::LEFT)?;
    let right_id = args
        .optional_field_alt(n_id, instanceof_expression::RIGHT)
        .or_else(|| args.optional_field_alt(n_id, instanceof_expression::PATTERN))
        .ok_or(SyntaxGraphError::UnexpectedAstShape)?;
    build_binary_operation_node(
        args,
        n_id,
        "InstanceOf".to_owned(),
        Some(left_id),
        Some(right_id),
    )
    .map(Some)
}