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use diagnostics::DatamodelError;
use parser_database::{ast::WithSpan, walkers::ModelWalker};

use crate::validate::validation_pipeline::context::Context;

pub(crate) fn view_definition_without_preview_flag(model: ModelWalker<'_>, ctx: &mut Context<'_>) {
    if ctx.preview_features.contains(crate::PreviewFeature::Views) {
        return;
    }

    if !model.ast_model().is_view() {
        return;
    }

    ctx.push_error(DatamodelError::new_validation_error(
        "View definitions are only available with the `views` preview feature.",
        model.ast_model().span(),
    ));
}