Add basic pipeline construction, callseq deduplication pending

tests/test_pipeline.py

@@ -0,0 +1,62 @@
+from dataclasses import dataclass
+
+from src.breakshaft.convertor import ConvRepo
+
+
+@dataclass
+class A:
+    a: int
+
+
+@dataclass
+class B:
+    b: float
+
+
+type optC = str
+
+
+def test_default_consumer_args():
+    repo = ConvRepo()
+
+    @repo.mark_injector()
+    def b_to_a(b: B) -> A:
+        return A(int(b.b))
+
+    @repo.mark_injector()
+    def a_to_b(a: A) -> B:
+        return B(float(a.a))
+
+    @repo.mark_injector()
+    def int_to_a(i: int) -> A:
+        return A(i)
+
+    type ret1 = tuple[int, str]
+
+    def consumer1(dep: A, opt_dep: optC = '42') -> ret1:
+        return dep.a, opt_dep
+
+    def consumer2(dep: A, dep1: ret1) -> optC:
+        return str((dep.a, dep1))
+
+    p1 = repo.create_pipeline(
+        (B,),
+        [consumer1, consumer2],
+        force_commutative=True,
+        allow_sync=True,
+        allow_async=False,
+        force_async=False
+    )
+    res = p1(B(42.1))
+    assert res == "(42, (42, '42'))"
+
+    p2 = repo.create_pipeline(
+        (B,),
+        [consumer1, consumer2, consumer1],
+        force_commutative=True,
+        allow_sync=True,
+        allow_async=False,
+        force_async=False
+    )
+    res = p2(B(42.1))
+    assert res == (42, "(42, (42, '42'))")