Replace LALRPOP parser with hand-written parser

Co-authored-by: Micha Reiser <micha@reiser.io>

crates/ruff_python_parser/resources/valid/expressions/dictionary_comprehension.py

@@ -0,0 +1 @@
+x = {y for y in (1, 2, 3)}

crates/ruff_python_parser/resources/valid/expressions/lambda.py

@@ -0,0 +1,11 @@
+lambda: 1
+
+lambda a, b, c: 1
+
+lambda a, b=20, c=30: 1
+
+lambda *, a, b, c: 1
+
+lambda *, a, b=20, c=30: 1
+
+lambda a, b, c, *, d, e: 0

crates/ruff_python_parser/resources/valid/expressions/list_comprehension.py

@@ -0,0 +1 @@
+x = [y for y in (1, 2, 3)]

crates/ruff_python_parser/resources/valid/expressions/named_expression.py

@@ -0,0 +1,4 @@
+if x := 1:
+    pass
+
+(x := 5)

crates/ruff_python_parser/resources/valid/statement/annotated_assignment.py

@@ -0,0 +1 @@
+x: int = 1

crates/ruff_python_parser/resources/valid/statement/assignment.py

@@ -0,0 +1,40 @@
+x = (1, 2, 3)
+
+(x, y) = (1, 2, 3)
+
+[x, y] = (1, 2, 3)
+
+x.y = (1, 2, 3)
+
+x[y] = (1, 2, 3)
+
+(x, *y) = (1, 2, 3)
+
+
+# This last group of tests checks that assignments we expect to be parsed
+# (including some interesting ones) continue to be parsed successfully.
+
+*foo = 42
+
+[x, y, z] = [1, 2, 3]
+
+(x, y, z) = (1, 2, 3)
+x[0] = 42
+
+# This is actually a type error, not a syntax error. So check that it
+# doesn't fail parsing.
+
+5[0] = 42
+x[1:2] = [42]
+
+# This is actually a type error, not a syntax error. So check that it
+# doesn't fail parsing.
+5[1:2] = [42]
+
+foo.bar = 42
+
+# This is actually an attribute error, not a syntax error. So check that
+# it doesn't fail parsing.
+"foo".y = 42
+
+foo = 42

crates/ruff_python_parser/resources/valid/statement/augmented_assignment.py

@@ -0,0 +1,3 @@
+x += 1
+x.y += (1, 2, 3)
+x[y] += (1, 2, 3)

crates/ruff_python_parser/resources/valid/statement/delete.py

@@ -0,0 +1,3 @@
+del x
+del x.y
+del x[y]

crates/ruff_python_parser/resources/valid/statement/for.py

@@ -0,0 +1,2 @@
+for x in (1, 2, 3):
+    pass

crates/ruff_python_parser/resources/valid/statement/function.py

@@ -0,0 +1,38 @@
+def no_parameters():
+    pass
+
+
+def positional_parameters(a, b, c):
+    pass
+
+
+def positional_parameters_with_default_values(a, b=20, c=30):
+    pass
+
+
+def keyword_only_parameters(*, a, b, c):
+    pass
+
+
+def keyword_only_parameters_with_defaults(*, a, b=20, c=30):
+    pass
+
+
+def positional_and_keyword_parameters(a, b, c, *, d, e, f):
+    pass
+
+
+def positional_and_keyword_parameters_with_defaults(a, b, c, *, d, e=20, f=30):
+    pass
+
+
+def positional_and_keyword_parameters_with_defaults_and_varargs(
+    a, b, c, *args, d, e=20, f=30
+):
+    pass
+
+
+def positional_and_keyword_parameters_with_defaults_and_varargs_and_kwargs(
+    a, b, c, *args, d, e=20, f=30, **kwargs
+):
+    pass

crates/ruff_python_parser/resources/valid/statement/with.py

@@ -0,0 +1,2 @@
+with 1 as x:
+    pass