Method yield_outside_function

crates/ruff_python_parser/src/semantic_errors.rs:1067–1098

F704

(
        ctx: &Ctx,
        expr: &Expr,
        kind: YieldOutsideFunctionKind,
    )

    /// F704
    fn yield_outside_function<Ctx: SemanticSyntaxContext>(
        ctx: &Ctx,
        expr: &Expr,
        kind: YieldOutsideFunctionKind,
    ) {
        // We are intentionally not inspecting the async status of the scope for now to mimic F704.
        // await-outside-async is PLE1142 instead, so we'll end up emitting both syntax errors for
        // cases that trigger F704

        if ctx.in_function_scope() {
            return;
        }

        if kind.is_await() {
            // `await` is allowed at the top level of a Jupyter notebook.
            // See: https://ipython.readthedocs.io/en/stable/interactive/autoawait.html.
            if ctx.in_module_scope() && ctx.in_notebook() {
                return;
            }
            if ctx.in_await_allowed_context() {
                return;
            }
        } else if ctx.in_yield_allowed_context() {
            return;
        }

        Self::add_error(
            ctx,
            SemanticSyntaxErrorKind::YieldOutsideFunction(kind),
            expr.range(),
        );
    }

    /// Add a [`SemanticSyntaxErrorKind::ReboundComprehensionVariable`] if `expr` rebinds an
    /// iteration variable in `generators`.