Split out Ichor

projects/shoggoth/BUILD

@@ -1,6 +1,6 @@
 py_project(
     name = "shoggoth",
-    main = "src/python/forerunner/repl/__main__.py",
+    main = "src/python/shoggoth/repl/__main__.py",
     main_deps = [
         py_requirement("prompt_toolkit"),
         py_requirement("yaspin"),

projects/shoggoth/src/python/ichor/bootstrap.py

@@ -6,7 +6,7 @@ Hopefully no "real" interpreter ever uses this code, since it's obviously replac
 
 from .isa import Module, Opcode
 
-from shoggoth.types import *
+from .typing import ProductExpr, SumExpr
 
 
 BOOTSTRAP = Module()

projects/shoggoth/src/python/ichor/impl.py

@@ -1,19 +1,11 @@
 #!/usr/bin/env python3
 
-"""The Shogoth VM implementation.
+"""The Ichor VM implementation.
 
-The whole point of shoggoth is that program executions are checkpointable and restartable. This requires that rather than
+The whole point of Shoggoth is that program executions are checkpointable and restartable. This requires that rather than
 using a traditional recursive interpreter which is difficult to snapshot, interpretation in shoggoth occur within a
 context (a virtual machine) which DOES have an easily introspected and serialized representation.
 
-## The Shogoth VM Architecture
-
-
-- NOT    [bool] -> [bool]
-- IF     [then: addr, else: addr, cond: bool] -> []
-- CALL   [procedure, n, ...] -> [...]
-- RETURN [n, ...]
-
 """
 
 

projects/shoggoth/src/python/ichor/isa.py

@@ -3,7 +3,7 @@
 
 from typing import NamedTuple
 
-from shoggoth.types import FunctionRef
+from .typing import FunctionRef
 
 
 class Opcode:

projects/shoggoth/src/python/ichor/typing.py

@@ -58,11 +58,28 @@ class Closure(t.NamedTuple):
     args: t.List[t.Any]
 
 
-# FIXME (arrdem 2022-05-30):
+class FunctionSignature(t.NamedTuple):
-#   Find a better name for this
+    raw: str
-class Vec(list):
+    type_params: list
-    pass
+    name: str
+    args: list
+    ret: list
+
+    @staticmethod
+    def parse_list(l):
+        return [e for e in l.split(",") if e]
+
+    @classmethod
+    def parse(cls, raw: str):
+        vars, name, args, ret = raw.split(";")
+        return cls(
+            raw,
+            cls.parse_list(vars),
+            name,
+            cls.parse_list(args),
+            cls.parse_list(ret)
+        )
 
 
-class List(list):
+class Function(t.NamedTuple):
-    pass
+    """The type of a function; a subset of its signature."""

projects/shoggoth/src/python/shoggoth/types/function.py

@@ -1,30 +0,0 @@
-#!/usr/bin/env python3
-
-from typing import NamedTuple
-
-
-class FunctionSignature(NamedTuple):
-    raw: str
-    type_params: list
-    name: str
-    args: list
-    ret: list
-
-    @staticmethod
-    def parse_list(l):
-        return [e for e in l.split(",") if e]
-
-    @classmethod
-    def parse(cls, raw: str):
-        vars, name, args, ret = raw.split(";")
-        return cls(
-            raw,
-            cls.parse_list(vars),
-            name,
-            cls.parse_list(args),
-            cls.parse_list(ret)
-        )
-
-
-class Function(NamedTuple):
-    """The type of a function; a subset of its signature."""

projects/shoggoth/src/python/shoggoth/types/keyword.py

@@ -1,5 +0,0 @@
-from .symbol import Symbol
-
-
-class Keyword(Symbol):
-    pass

projects/shoggoth/src/python/shoggoth/types/symbol.py

@@ -1,21 +0,0 @@
-import typing as t
-
-
-class Symbol(t.NamedTuple):
-    name: str
-    namespace: t.Optional[str] = None
-
-    def qualify(self, ns: str):
-        return Symbol(self.name, ns)
-
-    def unqualified(self):
-        if not self.namespace:
-            return self
-        else:
-            return Symbol(self.name)
-
-    def __str__(self):
-        if self.namespace:
-            return f"{self.namespace}/{self.name}"
-        else:
-            return self.name

projects/shoggoth/test/python/ichor/fixtures.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 import pytest
-from shoggoth.vm import *
+from ichor import *
 
 
 @pytest.fixture

projects/shoggoth/test/python/ichor/test_bootstrap.py

@@ -3,7 +3,7 @@
 from .fixtures import *  # noqa
 
 import pytest
-from shoggoth.vm import *
+from ichor import *
 
 
 @pytest.mark.parametrize("stack,ret", [

projects/shoggoth/test/python/ichor/test_interpreter.py

@@ -5,7 +5,7 @@ Tests coverign the VM interpreter
 from .fixtures import *  # noqa
 
 import pytest
-from shoggoth.vm import *
+from ichor import *
 
 
 def test_true(vm):