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286 | @VisitorCore.visit.dispatch
def visit(self, node: astx.LiteralDateTime) -> None:
"""
title: Visit LiteralDateTime nodes.
parameters:
node:
type: astx.LiteralDateTime
"""
hour_minute_count = 2
hour_minute_second_count = 3
max_hour = 23
max_minute_second = 59
value = node.value.strip()
if "T" in value:
date_part, time_part = value.split("T", 1)
elif " " in value:
date_part, time_part = value.split(" ", 1)
else:
raise ValueError(
f"LiteralDateTime: invalid format '{node.value}'. "
"Expected 'YYYY-MM-DDTHH:MM[:SS]' (or space instead of 'T')."
)
if "." in time_part:
raise ValueError(
"LiteralDateTime: fractional seconds not supported in "
f"'{node.value}'. Use LiteralTimestamp instead."
)
if time_part.endswith("Z") or "+" in time_part or "-" in time_part[2:]:
raise ValueError(
"LiteralDateTime: timezone offsets not supported in "
f"'{node.value}'. Use LiteralTimestamp for timezones."
)
try:
y_str, m_str, d_str = date_part.split("-")
year = int(y_str)
month = int(m_str)
day = int(d_str)
except Exception as exc:
raise ValueError(
f"LiteralDateTime: invalid date part in '{node.value}'. "
"Expected 'YYYY-MM-DD'."
) from exc
int32_min, int32_max = -(2**31), 2**31 - 1
if not (int32_min <= year <= int32_max):
raise ValueError(
f"LiteralDateTime: year out of 32-bit range in '{node.value}'."
)
try:
parts = time_part.split(":")
if len(parts) not in (hour_minute_count, hour_minute_second_count):
raise ValueError("time must be HH:MM or HH:MM:SS")
hour = int(parts[0])
minute = int(parts[1])
second = (
int(parts[2]) if len(parts) == hour_minute_second_count else 0
)
except Exception as exc:
raise ValueError(
f"LiteralDateTime: invalid time part in '{node.value}'. "
"Expected 'HH:MM' or 'HH:MM:SS'."
) from exc
if not (0 <= hour <= max_hour):
raise ValueError(
f"LiteralDateTime: hour out of range in '{node.value}'."
)
if not (0 <= minute <= max_minute_second):
raise ValueError(
f"LiteralDateTime: minute out of range in '{node.value}'."
)
if not (0 <= second <= max_minute_second):
raise ValueError(
f"LiteralDateTime: second out of range in '{node.value}'."
)
try:
datetime(year, month, day)
time_value(hour, minute, second)
except ValueError as exc:
raise ValueError(
"LiteralDateTime: invalid calendar date/time in "
f"'{node.value}'."
) from exc
i32 = self._llvm.INT32_TYPE
const_dt = ir.Constant(
self._llvm.DATETIME_TYPE,
[
ir.Constant(i32, year),
ir.Constant(i32, month),
ir.Constant(i32, day),
ir.Constant(i32, hour),
ir.Constant(i32, minute),
ir.Constant(i32, second),
],
)
self.result_stack.append(const_dt)
|