Function validate_variable_declarations

graphlite/src/ast/validator.rs:855–896

Validate variable declarations and scope

(
    query: &Query,
    ctx: &mut ValidationContext,
    errors: &mut Vec<ValidationError>,
)

/// Validate variable declarations and scope
fn validate_variable_declarations(
    query: &Query,
    ctx: &mut ValidationContext,
    errors: &mut Vec<ValidationError>,
) {
    match query {
        Query::Basic(basic_query) => {
            validate_basic_query_variables(basic_query, ctx, errors);
        }
        Query::SetOperation(set_op) => {
            // For set operations, validate each query independently
            let mut left_ctx = ctx.clone();
            validate_variable_declarations(&set_op.left, &mut left_ctx, errors);
            let mut right_ctx = ctx.clone();
            validate_variable_declarations(&set_op.right, &mut right_ctx, errors);
        }
        Query::Limited { query, .. } => {
            validate_variable_declarations(query, ctx, errors);
        }
        Query::WithQuery(_) => {
            // TODO: Implement WithQuery validation
        }
        Query::Let(_) => {
            // TODO: Implement LET validation
        }
        Query::For(_) => {
            // TODO: Implement FOR validation
        }
        Query::Filter(_) => {
            // TODO: Implement FILTER validation
        }
        Query::Return(_) => {
            // TODO: Implement RETURN validation
        }
        Query::Unwind(_) => {
            // TODO: Implement UNWIND variable validation
        }
        Query::MutationPipeline(_) => {
            // TODO: Validate mutation pipeline variables
        }
    }
}

fn validate_basic_query_variables(
    query: &BasicQuery,