feat(clear_signing): add date and raw formatters. - core tests added. - proto updated. [no changelog]

diff --git a/common/protob/messages-definitions.proto b/common/protob/messages-definitions.proto
index c3f0396f..2359c77b 100644
--- a/common/protob/messages-definitions.proto
+++ b/common/protob/messages-definitions.proto
@@ -132,6 +132,8 @@ enum EthereumERC7730FieldFormatterType {
     FORMATTER_AMOUNT = 1;
     FORMATTER_TOKEN_AMOUNT = 2;
     FORMATTER_UNIT = 3;
+    FORMATTER_RAW = 4;
+    FORMATTER_DATE = 5;
 }
 
 /**
diff --git a/core/src/apps/ethereum/clear_signing.py b/core/src/apps/ethereum/clear_signing.py
index 547ac454..1ca60eb3 100644
--- a/core/src/apps/ethereum/clear_signing.py
+++ b/core/src/apps/ethereum/clear_signing.py
@@ -399,6 +399,58 @@ class UnitFormatter(FieldFormatter):
             return f"{significand:g}{prefix_symbol}{self.base}", None, None
 
 
+class RawFormatter(FieldFormatter):
+    """Lazy placeholder. Simply adds label to the value and show it essentially as-is.
+    ERC-7730 `raw` format: display the decoded value with no transformation,
+    rendering by its Solidity type per the spec:
+      * int    -> decimal string (natural representation)
+      * string -> the UTF-8 string as-is
+      * bytes  -> hex-encoded string
+    """
+
+    async def format(
+        self,
+        value: AnyValue,
+        _msg: MsgInSignTx,
+        _definitions: Definitions,
+        _path_walker: PathWalker,
+    ) -> tuple[str | AboveThreshold | None, EthereumTokenInfo | None, AnyBytes | None]:
+        if value is None:
+            return None, None, None
+        elif isinstance(value, str):
+            return value, None, None
+        elif isinstance(value, (bytes, bytearray)):
+            from ubinascii import hexlify
+
+            return hexlify(value).decode(), None, None
+        elif isinstance(value, int):
+            # bool is an int subclass; rendered as "True"/"False".
+            return str(value), None, None
+        else:
+            raise InvalidFormatDefinition
+
+
+class DateFormatter(FieldFormatter):
+    """ERC-7730 `date` format with `encoding: timestamp` (the only encoding used
+    by the supported definitions). Renders a unix timestamp (seconds) as a
+    human-readable date."""
+
+    async def format(
+        self,
+        value: AnyValue,
+        _msg: MsgInSignTx,
+        _definitions: Definitions,
+        _path_walker: PathWalker,
+    ) -> tuple[str | AboveThreshold | None, EthereumTokenInfo | None, AnyBytes | None]:
+        from trezor.strings import format_timestamp
+
+        if value is None:
+            return None, None, None
+        if isinstance(value, int):
+            return format_timestamp(value), None, None
+        raise InvalidFormatDefinition
+
+
 # https://eips.ethereum.org/EIPS/eip-7730#context-section
 
 
@@ -646,6 +698,10 @@ class FieldDefinition:
             if info.prefix is not None:
                 formatter_params["prefix"] = info.prefix
             formatter = UnitFormatter(**formatter_params)
+        elif fmt_type == FT.FORMATTER_RAW:
+            formatter = RawFormatter
+        elif fmt_type == FT.FORMATTER_DATE:
+            formatter = DateFormatter
         else:
             raise InvalidFormatDefinition
 
@@ -703,7 +759,18 @@ class DisplayFormat:
 
         offset = 0
         for parameter_definition in self.parameter_definitions:
-            value, consumed = parameter_definition.parse(calldata, offset)
+            try:
+                value, consumed = parameter_definition.parse(calldata, offset)
+            except Exception as e:
+                if __debug__:
+                    from trezor import log
+
+                    log.debug(
+                        __name__,
+                        "clear signing: failed to parse calldata parameters (%s)",
+                        type(e).__name__,
+                    )
+                raise
             parameters.append(value)
             offset += consumed
 
@@ -762,12 +829,23 @@ class DisplayFormat:
             ]
         ] = []
         for field_definition in self.field_definitions:
-            value = get_value_for_path(field_definition.path)
-            formatter = field_definition.get_formatter()
-
-            formatted, token, token_address = await formatter.format(
-                value, msg, defs, get_value_for_path
-            )
+            try:
+                value = get_value_for_path(field_definition.path)
+                formatter = field_definition.get_formatter()
+                formatted, token, token_address = await formatter.format(
+                    value, msg, defs, get_value_for_path
+                )
+            except Exception as e:
+                if __debug__:
+                    from trezor import log
+
+                    log.debug(
+                        __name__,
+                        'clear signing: failed to display field "%s" (%s)',
+                        field_definition.label,
+                        type(e).__name__,
+                    )
+                raise
 
             fields.append(
                 (
diff --git a/core/src/trezor/enums/EthereumERC7730FieldFormatterType.py b/core/src/trezor/enums/EthereumERC7730FieldFormatterType.py
index 355f8854..39107afa 100644
--- a/core/src/trezor/enums/EthereumERC7730FieldFormatterType.py
+++ b/core/src/trezor/enums/EthereumERC7730FieldFormatterType.py
@@ -6,3 +6,5 @@ FORMATTER_ADDRESS_NAME = 0
 FORMATTER_AMOUNT = 1
 FORMATTER_TOKEN_AMOUNT = 2
 FORMATTER_UNIT = 3
+FORMATTER_RAW = 4
+FORMATTER_DATE = 5
diff --git a/core/src/trezor/enums/__init__.py b/core/src/trezor/enums/__init__.py
index 15c2333f..0858b779 100644
--- a/core/src/trezor/enums/__init__.py
+++ b/core/src/trezor/enums/__init__.py
@@ -327,6 +327,8 @@ if TYPE_CHECKING:
         FORMATTER_AMOUNT = 1
         FORMATTER_TOKEN_AMOUNT = 2
         FORMATTER_UNIT = 3
+        FORMATTER_RAW = 4
+        FORMATTER_DATE = 5
 
     class EthereumERC7730ContainerPath(IntEnum):
         FROM = 1
diff --git a/core/tests/test_apps.ethereum.clear_signing.py b/core/tests/test_apps.ethereum.clear_signing.py
index d7de03f3..3c87e381 100644
--- a/core/tests/test_apps.ethereum.clear_signing.py
+++ b/core/tests/test_apps.ethereum.clear_signing.py
@@ -6,12 +6,18 @@ import unittest
 if not utils.BITCOIN_ONLY:
 
     from ethereum_common import *
+    from trezor.enums import EthereumERC7730FieldFormatterType as FT
+    from trezor.messages import EthereumERC7730FieldInfo, EthereumERC7730Path
 
     from apps.ethereum.clear_signing import (
         Array,
         Atomic,
+        DateFormatter,
         DirtyAddress,
+        FieldDefinition,
+        InvalidFormatDefinition,
         OutOfBounds,
+        RawFormatter,
         Tuple,
         ValueOverflow,
         parse_address,
@@ -395,6 +401,81 @@ class TestEthereumClearSigning(unittest.TestCase):
         with self.assertRaises(OutOfBounds):
             nested_array_parser.parse(memoryview(payload_fail), 0)
 
+    # --- Field formatters ---
+
+    def test_raw_formatter(self):
+        fmt = RawFormatter()
+
+        # int -> decimal, including a full-width uint256 (no float rounding / sci-notation)
+        big = 2**256 - 1
+        for value, expected in (
+            (0, "0"),
+            (291, "291"),
+            (big, str(big)),
+        ):
+            formatted, token, addr = await_result(fmt.format(value, None, None, None))
+            self.assertEqual(formatted, expected)
+            self.assertIsNone(token)
+            self.assertIsNone(addr)
+
+        # string -> passed through unchanged
+        formatted, _, _ = await_result(fmt.format("Trezor", None, None, None))
+        self.assertEqual(formatted, "Trezor")
+
+        # bytes -> hex-encoded string
+        formatted, _, _ = await_result(
+            fmt.format(b"\x12\x34\x56\x78\x9a", None, None, None)
+        )
+        self.assertEqual(formatted, "123456789a")
+
+        # None -> None
+        formatted, _, _ = await_result(fmt.format(None, None, None, None))
+        self.assertIsNone(formatted)
+
+    def test_date_formatter(self):
+        fmt = DateFormatter()
+
+        # unix timestamp (seconds) -> human-readable date
+        formatted, token, addr = await_result(fmt.format(1616051824, None, None, None))
+        self.assertEqual(formatted, "2021-03-18 07:17:04")
+        self.assertIsNone(token)
+        self.assertIsNone(addr)
+
+        formatted, _, _ = await_result(fmt.format(0, None, None, None))
+        self.assertEqual(formatted, "1970-01-01 00:00:00")
+
+        # None -> None
+        formatted, _, _ = await_result(fmt.format(None, None, None, None))
+        self.assertIsNone(formatted)
+
+        # non-int value is rejected
+        with self.assertRaises(InvalidFormatDefinition):
+            await_result(fmt.format("not-a-timestamp", None, None, None))
+
+    def test_from_proto_raw_date_dispatch(self):
+        # End-to-end from a proto enum value to a rendered string. `from_proto`
+        # maps the wire integer (FORMATTER_RAW=4 / FORMATTER_DATE=5) to a
+        # formatter class.
+        raw_info = EthereumERC7730FieldInfo(
+            path=EthereumERC7730Path(path=[0]),
+            label="Field",
+            formatter=FT.FORMATTER_RAW,
+        )
+        raw_fmt = FieldDefinition.from_proto(raw_info).get_formatter()
+        self.assertIsInstance(raw_fmt, RawFormatter)
+        formatted, _, _ = await_result(raw_fmt.format(42, None, None, None))
+        self.assertEqual(formatted, "42")
+
+        date_info = EthereumERC7730FieldInfo(
+            path=EthereumERC7730Path(path=[0]),
+            label="Field",
+            formatter=FT.FORMATTER_DATE,
+        )
+        date_fmt = FieldDefinition.from_proto(date_info).get_formatter()
+        self.assertIsInstance(date_fmt, DateFormatter)
+        formatted, _, _ = await_result(date_fmt.format(1616051824, None, None, None))
+        self.assertEqual(formatted, "2021-03-18 07:17:04")
+
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/python/src/trezorlib/messages.py b/python/src/trezorlib/messages.py
index 03529f22..ad6daf63 100644
--- a/python/src/trezorlib/messages.py
+++ b/python/src/trezorlib/messages.py
@@ -370,6 +370,8 @@ class EthereumERC7730FieldFormatterType(IntEnum):
     FORMATTER_AMOUNT = 1
     FORMATTER_TOKEN_AMOUNT = 2
     FORMATTER_UNIT = 3
+    FORMATTER_RAW = 4
+    FORMATTER_DATE = 5
 
 
 class EthereumERC7730ContainerPath(IntEnum):
diff --git a/rust/trezor-client/src/protos/generated/messages_definitions.rs b/rust/trezor-client/src/protos/generated/messages_definitions.rs
index 77037655..b444b51c 100644
--- a/rust/trezor-client/src/protos/generated/messages_definitions.rs
+++ b/rust/trezor-client/src/protos/generated/messages_definitions.rs
@@ -2591,6 +2591,10 @@ pub enum EthereumERC7730FieldFormatterType {
     FORMATTER_TOKEN_AMOUNT = 2,
     // @@protoc_insertion_point(enum_value:hw.trezor.messages.definitions.EthereumERC7730FieldFormatterType.FORMATTER_UNIT)
     FORMATTER_UNIT = 3,
+    // @@protoc_insertion_point(enum_value:hw.trezor.messages.definitions.EthereumERC7730FieldFormatterType.FORMATTER_RAW)
+    FORMATTER_RAW = 4,
+    // @@protoc_insertion_point(enum_value:hw.trezor.messages.definitions.EthereumERC7730FieldFormatterType.FORMATTER_DATE)
+    FORMATTER_DATE = 5,
 }
 
 impl ::protobuf::Enum for EthereumERC7730FieldFormatterType {
@@ -2606,6 +2610,8 @@ impl ::protobuf::Enum for EthereumERC7730FieldFormatterType {
             1 => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_AMOUNT),
             2 => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_TOKEN_AMOUNT),
             3 => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_UNIT),
+            4 => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_RAW),
+            5 => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_DATE),
             _ => ::std::option::Option::None
         }
     }
@@ -2616,6 +2622,8 @@ impl ::protobuf::Enum for EthereumERC7730FieldFormatterType {
             "FORMATTER_AMOUNT" => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_AMOUNT),
             "FORMATTER_TOKEN_AMOUNT" => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_TOKEN_AMOUNT),
             "FORMATTER_UNIT" => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_UNIT),
+            "FORMATTER_RAW" => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_RAW),
+            "FORMATTER_DATE" => ::std::option::Option::Some(EthereumERC7730FieldFormatterType::FORMATTER_DATE),
             _ => ::std::option::Option::None
         }
     }
@@ -2625,6 +2633,8 @@ impl ::protobuf::Enum for EthereumERC7730FieldFormatterType {
         EthereumERC7730FieldFormatterType::FORMATTER_AMOUNT,
         EthereumERC7730FieldFormatterType::FORMATTER_TOKEN_AMOUNT,
         EthereumERC7730FieldFormatterType::FORMATTER_UNIT,
+        EthereumERC7730FieldFormatterType::FORMATTER_RAW,
+        EthereumERC7730FieldFormatterType::FORMATTER_DATE,
     ];
 }
 
@@ -2776,12 +2786,13 @@ static file_descriptor_proto_data: &'static [u8] = b"\
     \x12\x0c\n\x08ABI_BOOL\x10\x10\x12\x0f\n\x0bABI_BYTES32\x10\x14\x12\x0f\
     \n\x0bABI_BYTES16\x10\x15\x12\x0e\n\nABI_BYTES8\x10\x16\x12\x0e\n\nABI_B\
     YTES4\x10\x17\x12\r\n\tABI_BYTES\x10\x1e\x12\x0e\n\nABI_STRING\x10\x1f*\
-    \x85\x01\n!EthereumERC7730FieldFormatterType\x12\x1a\n\x16FORMATTER_ADDR\
+    \xac\x01\n!EthereumERC7730FieldFormatterType\x12\x1a\n\x16FORMATTER_ADDR\
     ESS_NAME\x10\0\x12\x14\n\x10FORMATTER_AMOUNT\x10\x01\x12\x1a\n\x16FORMAT\
-    TER_TOKEN_AMOUNT\x10\x02\x12\x12\n\x0eFORMATTER_UNIT\x10\x03*;\n\x1cEthe\
-    reumERC7730ContainerPath\x12\x08\n\x04FROM\x10\x01\x12\t\n\x05VALUE\x10\
-    \x02\x12\x06\n\x02TO\x10\x03B?\n#com.satoshilabs.trezor.lib.protobufB\
-    \x18TrezorMessageDefinitions\
+    TER_TOKEN_AMOUNT\x10\x02\x12\x12\n\x0eFORMATTER_UNIT\x10\x03\x12\x11\n\r\
+    FORMATTER_RAW\x10\x04\x12\x12\n\x0eFORMATTER_DATE\x10\x05*;\n\x1cEthereu\
+    mERC7730ContainerPath\x12\x08\n\x04FROM\x10\x01\x12\t\n\x05VALUE\x10\x02\
+    \x12\x06\n\x02TO\x10\x03B?\n#com.satoshilabs.trezor.lib.protobufB\x18Tre\
+    zorMessageDefinitions\
 ";
 
 /// `FileDescriptorProto` object which was a source for this generated file