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[climate] Pass codegen-known length for static custom_fan_mode/custom_preset

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J. Nick Koston
2026-04-29 06:32:11 -05:00
parent a35aecefee
commit c9db304887
1 changed files with 5 additions and 0 deletions
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esphome/components/climate/__init__.py
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@@ -515,6 +515,11 @@ async def climate_control_to_code(config, action_id, template_arg, args):
if isinstance(value, Lambda):
inner = await cg.process_lambda(value, args, return_type=type_)
body_lines.append(f"call.{setter}(({inner})({fwd_args}));")
elif type_ is cg.std_string:
# Static custom strings: emit a flash literal and pass the codegen-known
# length to skip the runtime strlen inside set_fan_mode/set_preset.
literal = cg.safe_exp(value)
body_lines.append(f"call.{setter}({literal}, {len(value)});")
else:
body_lines.append(f"call.{setter}({cg.safe_exp(value)});")