Method emit_pending_fstring_literal

crates/codegen/src/compile.rs:10031–10050

(
        &mut self,
        pending_literal: &mut Option<Wtf8Buf>,
        element_count: &mut u32,
        keep_empty: bool,
    )

    }

    fn emit_pending_fstring_literal(
        &mut self,
        pending_literal: &mut Option<Wtf8Buf>,
        element_count: &mut u32,
        keep_empty: bool,
    ) {
        let Some(value) = pending_literal.take() else {
            return;
        };

        // CPython drops empty literal fragments when they are adjacent to
        // formatted values, but still emits an empty string for a fully-empty
        // f-string.
        if value.is_empty() && (!keep_empty || *element_count > 0) {
            return;
        }

        self.emit_load_const(ConstantData::Str { value });
        *element_count += 1;
    }

    /// Optimize `'format_str' % (args,)` into f-string bytecode.
    /// Returns true if optimization was applied, false to fall back to normal BINARY_OP %.