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[api] Inline ProtoVarInt::parse fast path and return consumed in struct (#14638)

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
J. Nick Koston
2026-03-10 09:10:55 -10:00
committed by GitHub
parent 2c7ef4f758
commit 6e468936ec
6 changed files with 376 additions and 393 deletions
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script/api_protobuf/api_protobuf.py
+10 -10
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@@ -461,7 +461,7 @@ class FloatType(TypeInfo):
class Int64Type(TypeInfo):
cpp_type = "int64_t"
default_value = "0"
decode_varint = "value.as_int64()"
decode_varint = "static_cast<int64_t>(value)"
encode_func = "encode_int64"
wire_type = WireType.VARINT # Uses wire type 0
@@ -481,7 +481,7 @@ class Int64Type(TypeInfo):
class UInt64Type(TypeInfo):
cpp_type = "uint64_t"
default_value = "0"
decode_varint = "value.as_uint64()"
decode_varint = "value"
encode_func = "encode_uint64"
wire_type = WireType.VARINT # Uses wire type 0
@@ -501,7 +501,7 @@ class UInt64Type(TypeInfo):
class Int32Type(TypeInfo):
cpp_type = "int32_t"
default_value = "0"
decode_varint = "value.as_int32()"
decode_varint = "static_cast<int32_t>(value)"
encode_func = "encode_int32"
wire_type = WireType.VARINT # Uses wire type 0
@@ -573,7 +573,7 @@ class Fixed32Type(TypeInfo):
class BoolType(TypeInfo):
cpp_type = "bool"
default_value = "false"
decode_varint = "value.as_bool()"
decode_varint = "value != 0"
encode_func = "encode_bool"
wire_type = WireType.VARINT # Uses wire type 0
@@ -1151,7 +1151,7 @@ class FixedArrayBytesType(TypeInfo):
class UInt32Type(TypeInfo):
cpp_type = "uint32_t"
default_value = "0"
decode_varint = "value.as_uint32()"
decode_varint = "value"
encode_func = "encode_uint32"
wire_type = WireType.VARINT # Uses wire type 0
@@ -1175,7 +1175,7 @@ class EnumType(TypeInfo):
@property
def decode_varint(self) -> str:
return f"static_cast<{self.cpp_type}>(value.as_uint32())"
return f"static_cast<{self.cpp_type}>(value)"
default_value = ""
wire_type = WireType.VARINT # Uses wire type 0
@@ -1262,7 +1262,7 @@ class SFixed64Type(TypeInfo):
class SInt32Type(TypeInfo):
cpp_type = "int32_t"
default_value = "0"
decode_varint = "value.as_sint32()"
decode_varint = "decode_zigzag32(static_cast<uint32_t>(value))"
encode_func = "encode_sint32"
wire_type = WireType.VARINT # Uses wire type 0
@@ -1282,7 +1282,7 @@ class SInt32Type(TypeInfo):
class SInt64Type(TypeInfo):
cpp_type = "int64_t"
default_value = "0"
decode_varint = "value.as_sint64()"
decode_varint = "decode_zigzag64(value)"
encode_func = "encode_sint64"
wire_type = WireType.VARINT # Uses wire type 0
@@ -2205,7 +2205,7 @@ def build_message_type(
cpp = ""
if decode_varint:
o = f"bool {desc.name}::decode_varint(uint32_t field_id, ProtoVarInt value) {{\n"
o = f"bool {desc.name}::decode_varint(uint32_t field_id, proto_varint_value_t value) {{\n"
o += " switch (field_id) {\n"
o += indent("\n".join(decode_varint), " ") + "\n"
o += " default: return false;\n"
@@ -2213,7 +2213,7 @@ def build_message_type(
o += " return true;\n"
o += "}\n"
cpp += o
prot = "bool decode_varint(uint32_t field_id, ProtoVarInt value) override;"
prot = "bool decode_varint(uint32_t field_id, proto_varint_value_t value) override;"
protected_content.insert(0, prot)
if decode_length:
o = f"bool {desc.name}::decode_length(uint32_t field_id, ProtoLengthDelimited value) {{\n"