judge: pass result to checkers

dmoj/graders/standard.py

@@ -63,6 +63,7 @@ def check_result(self, case, result):
                     binary_data=case.has_binary_data,
                     execution_time=result.execution_time,
                     problem_id=self.problem.id,
+                    result=result,
                 )
             except UnicodeDecodeError:
                 # Don't rely on problemsetters to do sane things when it comes to Unicode handling, so

testsuite/check_memory_limit/checker.py

@@ -0,0 +1,9 @@
+from dmoj.checkers import standard
+from dmoj.result import Result
+
+
+def check(process_output: bytes, judge_output: bytes, *, result: Result, **kwargs) -> bool:
+    if result.max_memory > 16384:
+        return False
+
+    return standard.check(process_output, judge_output, result=result, **kwargs)

testsuite/check_memory_limit/init.yml

@@ -0,0 +1,4 @@
+checker: checker.py
+points: 1
+test_cases:
+  - {}

testsuite/check_memory_limit/tests/c_blank/empty.c

@@ -0,0 +1,3 @@
+int main() {
+    return 0;
+}

testsuite/check_memory_limit/tests/c_blank/test.yml

@@ -0,0 +1,5 @@
+language: C
+time: 2
+memory: 65536
+source: empty.c
+expect: AC

testsuite/check_memory_limit/tests/cpp_too_much_memory/bloat.cpp

@@ -0,0 +1,10 @@
+#pragma GCC optimize "O0"
+
+const int MN = 25 * 1024 * 1024;
+char arr[MN];
+
+int main() {
+    for (int i = 0; i < MN; ++i)
+        arr[i] = ' ';
+    return 0;
+}

testsuite/check_memory_limit/tests/cpp_too_much_memory/test.yml

@@ -0,0 +1,5 @@
+language: CPP11
+time: 2
+memory: 65536
+source: bloat.cpp
+expect: WA