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Improve API protobuf decode method readability and reduce code size (#9455)

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J. Nick Koston 2025-07-15 15:15:11 -10:00 committed by GitHub
parent 5c2dea79ef
commit b5be45273f
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GPG Key ID: B5690EEEBB952194
2 changed files with 606 additions and 795 deletions
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1307
esphome/components/api/api_pb2.cpp
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94
script/api_protobuf/api_protobuf.py
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@ -8,7 +8,6 @@ from pathlib import Path
import re
from subprocess import call
import sys
from textwrap import dedent
from typing import Any
import aioesphomeapi.api_options_pb2 as pb
@ -157,13 +156,7 @@ class TypeInfo(ABC):
content = self.decode_varint
if content is None:
return None
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name} = {content};
return true;
}}"""
)
return f"case {self.number}: this->{self.field_name} = {content}; break;"
decode_varint = None
@ -172,13 +165,7 @@ class TypeInfo(ABC):
content = self.decode_length
if content is None:
return None
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name} = {content};
return true;
}}"""
)
return f"case {self.number}: this->{self.field_name} = {content}; break;"
decode_length = None
@ -187,13 +174,7 @@ class TypeInfo(ABC):
content = self.decode_32bit
if content is None:
return None
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name} = {content};
return true;
}}"""
)
return f"case {self.number}: this->{self.field_name} = {content}; break;"
decode_32bit = None
@ -202,13 +183,7 @@ class TypeInfo(ABC):
content = self.decode_64bit
if content is None:
return None
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name} = {content};
return true;
}}"""
)
return f"case {self.number}: this->{self.field_name} = {content}; break;"
decode_64bit = None
@ -580,13 +555,7 @@ class MessageType(TypeInfo):
@property
def decode_length_content(self) -> str:
# Custom decode that doesn't use templates
return dedent(
f"""\
case {self.number}: {{
value.decode_to_message(this->{self.field_name});
return true;
}}"""
)
return f"case {self.number}: value.decode_to_message(this->{self.field_name}); break;"
def dump(self, name: str) -> str:
o = f"{name}.dump_to(out);"
@ -797,12 +766,8 @@ class RepeatedTypeInfo(TypeInfo):
content = self._ti.decode_varint
if content is None:
return None
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name}.push_back({content});
return true;
}}"""
return (
f"case {self.number}: this->{self.field_name}.push_back({content}); break;"
)
@property
@ -810,22 +775,11 @@ class RepeatedTypeInfo(TypeInfo):
content = self._ti.decode_length
if content is None and isinstance(self._ti, MessageType):
# Special handling for non-template message decoding
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name}.emplace_back();
value.decode_to_message(this->{self.field_name}.back());
return true;
}}"""
)
return f"case {self.number}: this->{self.field_name}.emplace_back(); value.decode_to_message(this->{self.field_name}.back()); break;"
if content is None:
return None
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name}.push_back({content});
return true;
}}"""
return (
f"case {self.number}: this->{self.field_name}.push_back({content}); break;"
)
@property
@ -833,12 +787,8 @@ class RepeatedTypeInfo(TypeInfo):
content = self._ti.decode_32bit
if content is None:
return None
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name}.push_back({content});
return true;
}}"""
return (
f"case {self.number}: this->{self.field_name}.push_back({content}); break;"
)
@property
@ -846,12 +796,8 @@ class RepeatedTypeInfo(TypeInfo):
content = self._ti.decode_64bit
if content is None:
return None
return dedent(
f"""\
case {self.number}: {{
this->{self.field_name}.push_back({content});
return true;
}}"""
return (
f"case {self.number}: this->{self.field_name}.push_back({content}); break;"
)
@property
@ -1155,41 +1101,45 @@ def build_message_type(
cpp = ""
if decode_varint:
decode_varint.append("default:\n return false;")
o = f"bool {desc.name}::decode_varint(uint32_t field_id, ProtoVarInt value) {{\n"
o += " switch (field_id) {\n"
o += indent("\n".join(decode_varint), " ") + "\n"
o += " default: return false;\n"
o += " }\n"
o += " return true;\n"
o += "}\n"
cpp += o
prot = "bool decode_varint(uint32_t field_id, ProtoVarInt value) override;"
protected_content.insert(0, prot)
if decode_length:
decode_length.append("default:\n return false;")
o = f"bool {desc.name}::decode_length(uint32_t field_id, ProtoLengthDelimited value) {{\n"
o += " switch (field_id) {\n"
o += indent("\n".join(decode_length), " ") + "\n"
o += " default: return false;\n"
o += " }\n"
o += " return true;\n"
o += "}\n"
cpp += o
prot = "bool decode_length(uint32_t field_id, ProtoLengthDelimited value) override;"
protected_content.insert(0, prot)
if decode_32bit:
decode_32bit.append("default:\n return false;")
o = f"bool {desc.name}::decode_32bit(uint32_t field_id, Proto32Bit value) {{\n"
o += " switch (field_id) {\n"
o += indent("\n".join(decode_32bit), " ") + "\n"
o += " default: return false;\n"
o += " }\n"
o += " return true;\n"
o += "}\n"
cpp += o
prot = "bool decode_32bit(uint32_t field_id, Proto32Bit value) override;"
protected_content.insert(0, prot)
if decode_64bit:
decode_64bit.append("default:\n return false;")
o = f"bool {desc.name}::decode_64bit(uint32_t field_id, Proto64Bit value) {{\n"
o += " switch (field_id) {\n"
o += indent("\n".join(decode_64bit), " ") + "\n"
o += " default: return false;\n"
o += " }\n"
o += " return true;\n"
o += "}\n"
cpp += o
prot = "bool decode_64bit(uint32_t field_id, Proto64Bit value) override;"