Implementation of the debugger

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu, macos, windows]
-        python-version: [ '3.6', '3.7', '3.8', '3.9', 'pypy3' ]
+        python-version: [ '3.7', '3.8', '3.9' ]
         exclude:
         - os: windows
           python-version: pypy3

ipykernel/compiler.py

@@ -0,0 +1,64 @@
+from IPython.core.compilerop import CachingCompiler
+import tempfile
+import os
+
+def murmur2_x86(data, seed):
+    m = 0x5bd1e995
+    length = len(data)
+    h = seed ^ length
+    rounded_end = (length & 0xfffffffc)
+    for i in range(0, rounded_end, 4):
+        k = (ord(data[i]) & 0xff) | ((ord(data[i + 1]) & 0xff) << 8) | \
+           ((ord(data[i + 2]) & 0xff) << 16) | (ord(data[i + 3]) << 24)
+        k = (k * m) & 0xffffffff
+        k ^= k >> 24
+        k = (k * m) & 0xffffffff
+
+        h = (h * m) & 0xffffffff
+        h ^= k
+
+    val = length & 0x03
+    k = 0
+    if val == 3:
+        k = (ord(data[rounded_end + 2]) & 0xff) << 16
+    if val in [2, 3]:
+        k |= (ord(data[rounded_end + 1]) & 0xff) << 8
+    if val in [1, 2, 3]:
+        k |= ord(data[rounded_end]) & 0xff
+        h ^= k
+        h = (h * m) & 0xffffffff
+
+    h ^= h >> 13
+    h = (h * m) & 0xffffffff
+    h ^= h >> 15
+
+    return h
+
+def get_tmp_directory():
+    tmp_dir = tempfile.gettempdir()
+    pid = os.getpid()
+    return tmp_dir + '/ipykernel_' + str(pid)
+
+def get_tmp_hash_seed():
+    hash_seed = 0xc70f6907
+    return hash_seed
+
+def get_file_name(code):
+    name = murmur2_x86(code, get_tmp_hash_seed())
+    return get_tmp_directory() + '/' + str(name) + '.py'
+
+class XCachingCompiler(CachingCompiler):
+
+    def __init__(self, *args, **kwargs):
+        super(XCachingCompiler, self).__init__(*args, **kwargs)
+        self.filename_mapper = None
+        self.log = None
+
+    def get_code_name(self, raw_code, code, number):
+        filename = get_file_name(raw_code)
+
+        if self.filename_mapper is not None:
+            self.filename_mapper(filename, number)
+
+        return filename
+

ipykernel/control.py

@@ -12,6 +12,8 @@ class ControlThread(Thread):
     def __init__(self, **kwargs):
         Thread.__init__(self, **kwargs)
         self.io_loop = IOLoop(make_current=False)
+        self.pydev_do_not_trace = True
+        self.is_pydev_daemon_thread = True
 
     def run(self): 
         self.io_loop.make_current()