Merge branch 'master' into patch-8

Author: BobTheBuidler

mypy-requirements.txt

@@ -4,3 +4,4 @@ typing_extensions>=4.6.0
 mypy_extensions>=1.0.0
 pathspec>=0.9.0
 tomli>=1.1.0; python_version<'3.11'
+librt>=0.1.0

mypy/build.py

@@ -1546,7 +1546,7 @@ def write_cache(
     source_hash: str,
     ignore_all: bool,
     manager: BuildManager,
-) -> tuple[str, tuple[dict[str, Any], str, str] | None]:
+) -> tuple[str, tuple[dict[str, Any], str] | None]:
     """Write cache files for a module.
 
     Note that this mypy's behavior is still correct when any given
@@ -1568,7 +1568,7 @@ def write_cache(
 
     Returns:
       A tuple containing the interface hash and inner tuple with cache meta JSON
-      that should be written and paths to cache files (inner tuple may be None,
+      that should be written and path to cache file (inner tuple may be None,
       if the cache data could not be written).
     """
     metastore = manager.metastore
@@ -1662,12 +1662,10 @@ def write_cache(
         "ignore_all": ignore_all,
         "plugin_data": plugin_data,
     }
-    return interface_hash, (meta, meta_json, data_json)
+    return interface_hash, (meta, meta_json)
 
 
-def write_cache_meta(
-    meta: dict[str, Any], manager: BuildManager, meta_json: str, data_json: str
-) -> CacheMeta:
+def write_cache_meta(meta: dict[str, Any], manager: BuildManager, meta_json: str) -> None:
     # Write meta cache file
     metastore = manager.metastore
     meta_str = json_dumps(meta, manager.options.debug_cache)
@@ -1677,8 +1675,6 @@ def write_cache_meta(
         # The next run will simply find the cache entry out of date.
         manager.log(f"Error writing meta JSON file {meta_json}")
 
-    return cache_meta_from_dict(meta, data_json)
-
 
 """Dependency manager.
 
@@ -1864,9 +1860,6 @@ class State:
     # List of (path, line number) tuples giving context for import
     import_context: list[tuple[str, int]]
 
-    # The State from which this module was imported, if any
-    caller_state: State | None = None
-
     # If caller_state is set, the line number in the caller where the import occurred
     caller_line = 0
 
@@ -1917,7 +1910,6 @@ def __init__(
         self.manager = manager
         State.order_counter += 1
         self.order = State.order_counter
-        self.caller_state = caller_state
         self.caller_line = caller_line
         if caller_state:
             self.import_context = caller_state.import_context.copy()
@@ -2008,11 +2000,6 @@ def __init__(
             self.parse_file(temporary=temporary)
             self.compute_dependencies()
 
-    @property
-    def xmeta(self) -> CacheMeta:
-        assert self.meta, "missing meta on allegedly fresh module"
-        return self.meta
-
     def add_ancestors(self) -> None:
         if self.path is not None:
             _, name = os.path.split(self.path)
@@ -2479,7 +2466,7 @@ def valid_references(self) -> set[str]:
 
         return valid_refs
 
-    def write_cache(self) -> tuple[dict[str, Any], str, str] | None:
+    def write_cache(self) -> tuple[dict[str, Any], str] | None:
         assert self.tree is not None, "Internal error: method must be called on parsed file only"
         # We don't support writing cache files in fine-grained incremental mode.
         if (
@@ -3477,14 +3464,13 @@ def process_stale_scc(graph: Graph, scc: list[str], manager: BuildManager) -> No
     for id in stale:
         meta_tuple = meta_tuples[id]
         if meta_tuple is None:
-            graph[id].meta = None
             continue
-        meta, meta_json, data_json = meta_tuple
+        meta, meta_json = meta_tuple
         meta["dep_hashes"] = {
             dep: graph[dep].interface_hash for dep in graph[id].dependencies if dep in graph
         }
         meta["error_lines"] = errors_by_id.get(id, [])
-        graph[id].meta = write_cache_meta(meta, manager, meta_json, data_json)
+        write_cache_meta(meta, manager, meta_json)
 
 
 def sorted_components(

mypy_self_check.ini

@@ -13,3 +13,4 @@ enable_error_code = ignore-without-code,redundant-expr
 enable_incomplete_feature = PreciseTupleTypes
 show_error_code_links = True
 warn_unreachable = True
+fixed_format_cache = True

mypyc/irbuild/for_helpers.py

@@ -25,6 +25,7 @@
     TupleExpr,
     TypeAlias,
 )
+from mypy.types import LiteralType, TupleType, get_proper_type, get_proper_types
 from mypyc.ir.ops import (
     ERR_NEVER,
     BasicBlock,
@@ -33,6 +34,7 @@
     IntOp,
     LoadAddress,
     LoadErrorValue,
+    LoadLiteral,
     LoadMem,
     MethodCall,
     RaiseStandardError,
@@ -168,7 +170,7 @@ def for_loop_helper_with_index(
         body_insts: a function that generates the body of the loop.
                     It needs a index as parameter.
     """
-    assert is_sequence_rprimitive(expr_reg.type)
+    assert is_sequence_rprimitive(expr_reg.type), (expr_reg, expr_reg.type)
     target_type = builder.get_sequence_type(expr)
 
     body_block = BasicBlock()
@@ -215,10 +217,9 @@ def sequence_from_generator_preallocate_helper(
     there is no condition list in the generator and only one original sequence with
     one index is allowed.
 
-    e.g.  (1) tuple(f(x) for x in a_list/a_tuple/a_str/a_bytes)
-          (2) list(f(x) for x in a_list/a_tuple/a_str/a_bytes)
-          (3) [f(x) for x in a_list/a_tuple/a_str/a_bytes]
-    RTuple as an original sequence is not supported yet.
+    e.g.  (1) tuple(f(x) for x in a_list/a_tuple/a_str/a_bytes/an_rtuple)
+          (2) list(f(x) for x in a_list/a_tuple/a_str/a_bytes/an_rtuple)
+          (3) [f(x) for x in a_list/a_tuple/a_str/a_bytes/an_rtuple]
 
     Args:
         empty_op_llbuilder: A function that can generate an empty sequence op when
@@ -233,23 +234,41 @@ def sequence_from_generator_preallocate_helper(
             implementation.
     """
     if len(gen.sequences) == 1 and len(gen.indices) == 1 and len(gen.condlists[0]) == 0:
-        rtype = builder.node_type(gen.sequences[0])
-        if is_sequence_rprimitive(rtype):
-            sequence = builder.accept(gen.sequences[0])
-            length = get_expr_length_value(
-                builder, gen.sequences[0], sequence, gen.line, use_pyssize_t=True
-            )
-            target_op = empty_op_llbuilder(length, gen.line)
-
-            def set_item(item_index: Value) -> None:
-                e = builder.accept(gen.left_expr)
-                builder.call_c(set_item_op, [target_op, item_index, e], gen.line)
-
-            for_loop_helper_with_index(
-                builder, gen.indices[0], gen.sequences[0], sequence, set_item, gen.line, length
-            )
+        line = gen.line
+        sequence_expr = gen.sequences[0]
+        rtype = builder.node_type(sequence_expr)
+        if not (is_sequence_rprimitive(rtype) or isinstance(rtype, RTuple)):
+            return None
+        sequence = builder.accept(sequence_expr)
+        length = get_expr_length_value(builder, sequence_expr, sequence, line, use_pyssize_t=True)
+        if isinstance(rtype, RTuple):
+            # If input is RTuple, box it to tuple_rprimitive for generic iteration
+            # TODO: this can be optimized a bit better with an unrolled ForRTuple helper
+            proper_type = get_proper_type(builder.types[sequence_expr])
+            assert isinstance(proper_type, TupleType), proper_type
+
+            get_item_ops = [
+                (
+                    LoadLiteral(typ.value, object_rprimitive)
+                    if isinstance(typ, LiteralType)
+                    else TupleGet(sequence, i, line)
+                )
+                for i, typ in enumerate(get_proper_types(proper_type.items))
+            ]
+            items = list(map(builder.add, get_item_ops))
+            sequence = builder.new_tuple(items, line)
+
+        target_op = empty_op_llbuilder(length, line)
+
+        def set_item(item_index: Value) -> None:
+            e = builder.accept(gen.left_expr)
+            builder.call_c(set_item_op, [target_op, item_index, e], line)
+
+        for_loop_helper_with_index(
+            builder, gen.indices[0], sequence_expr, sequence, set_item, line, length
+        )
 
-            return target_op
+        return target_op
     return None
 
 
@@ -802,7 +821,7 @@ class ForSequence(ForGenerator):
     def init(
         self, expr_reg: Value, target_type: RType, reverse: bool, length: Value | None = None
     ) -> None:
-        assert is_sequence_rprimitive(expr_reg.type), expr_reg
+        assert is_sequence_rprimitive(expr_reg.type), (expr_reg, expr_reg.type)
         builder = self.builder
         # Record a Value indicating the length of the sequence, if known at compile time.
         self.length = length
@@ -832,7 +851,6 @@ def init(
     def gen_condition(self) -> None:
         builder = self.builder
         line = self.line
-        # TODO: Don't reload the length each time when iterating an immutable sequence?
         if self.reverse:
             # If we are iterating in reverse order, we obviously need
             # to check that the index is still positive. Somewhat less
@@ -1207,7 +1225,7 @@ def get_expr_length_value(
     builder: IRBuilder, expr: Expression, expr_reg: Value, line: int, use_pyssize_t: bool
 ) -> Value:
     rtype = builder.node_type(expr)
-    assert is_sequence_rprimitive(rtype), rtype
+    assert is_sequence_rprimitive(rtype) or isinstance(rtype, RTuple), rtype
     length = get_expr_length(builder, expr)
     if length is None:
         # We cannot compute the length at compile time, so we will fetch it.

mypyc/irbuild/specialize.py

@@ -14,7 +14,7 @@
 
 from __future__ import annotations
 
-from typing import Callable, Final, Optional
+from typing import Callable, Final, Optional, cast
 
 from mypy.nodes import (
     ARG_NAMED,
@@ -40,6 +40,7 @@
     Call,
     Extend,
     Integer,
+    PrimitiveDescription,
     RaiseStandardError,
     Register,
     SetAttr,
@@ -589,26 +590,81 @@ def translate_isinstance(builder: IRBuilder, expr: CallExpr, callee: RefExpr) ->
     if not (len(expr.args) == 2 and expr.arg_kinds == [ARG_POS, ARG_POS]):
         return None
 
-    if isinstance(expr.args[1], (RefExpr, TupleExpr)):
-        builder.types[expr.args[0]] = AnyType(TypeOfAny.from_error)
+    obj_expr = expr.args[0]
+    type_expr = expr.args[1]
 
-        irs = builder.flatten_classes(expr.args[1])
+    if isinstance(type_expr, TupleExpr) and not type_expr.items:
+        # we can compile this case to a noop
+        return builder.false()
+
+    if isinstance(type_expr, (RefExpr, TupleExpr)):
+        builder.types[obj_expr] = AnyType(TypeOfAny.from_error)
+
+        irs = builder.flatten_classes(type_expr)
         if irs is not None:
             can_borrow = all(
                 ir.is_ext_class and not ir.inherits_python and not ir.allow_interpreted_subclasses
                 for ir in irs
             )
-            obj = builder.accept(expr.args[0], can_borrow=can_borrow)
+            obj = builder.accept(obj_expr, can_borrow=can_borrow)
             return builder.builder.isinstance_helper(obj, irs, expr.line)
 
-    if isinstance(expr.args[1], RefExpr):
-        node = expr.args[1].node
+    if isinstance(type_expr, RefExpr):
+        node = type_expr.node
         if node:
             desc = isinstance_primitives.get(node.fullname)
             if desc:
-                obj = builder.accept(expr.args[0])
+                obj = builder.accept(obj_expr)
                 return builder.primitive_op(desc, [obj], expr.line)
 
+    elif isinstance(type_expr, TupleExpr):
+        node_names: list[str] = []
+        for item in type_expr.items:
+            if not isinstance(item, RefExpr):
+                return None
+            if item.node is None:
+                return None
+            if item.node.fullname not in node_names:
+                node_names.append(item.node.fullname)
+
+        descs = [isinstance_primitives.get(fullname) for fullname in node_names]
+        if None in descs:
+            # not all types are primitive types, abort
+            return None
+
+        obj = builder.accept(obj_expr)
+
+        retval = Register(bool_rprimitive)
+        pass_block = BasicBlock()
+        fail_block = BasicBlock()
+        exit_block = BasicBlock()
+
+        # Chain the checks: if any succeed, jump to pass_block; else, continue
+        for i, desc in enumerate(descs):
+            is_last = i == len(descs) - 1
+            next_block = fail_block if is_last else BasicBlock()
+            builder.add_bool_branch(
+                builder.primitive_op(cast(PrimitiveDescription, desc), [obj], expr.line),
+                pass_block,
+                next_block,
+            )
+            if not is_last:
+                builder.activate_block(next_block)
+
+        # If any check passed
+        builder.activate_block(pass_block)
+        builder.assign(retval, builder.true(), expr.line)
+        builder.goto(exit_block)
+
+        # If all checks failed
+        builder.activate_block(fail_block)
+        builder.assign(retval, builder.false(), expr.line)
+        builder.goto(exit_block)
+
+        # Return the result
+        builder.activate_block(exit_block)
+        return retval
+
     return None
 
 

mypyc/lib-rt/setup.py

@@ -73,8 +73,6 @@ def run(self) -> None:
     # TODO: we need a way to share our preferred C flags and get_extension() logic with
     # mypyc/build.py without code duplication.
     setup(
-        name="mypy-native",
-        version="0.0.1",
         ext_modules=[
             Extension(
                 "native_internal",
@@ -88,5 +86,5 @@ def run(self) -> None:
                 ],
                 include_dirs=["."],
             )
-        ],
+        ]
     )

mypyc/test-data/irbuild-isinstance.test

@@ -189,3 +189,31 @@ def is_tuple(x):
 L0:
     r0 = PyTuple_Check(x)
     return r0
+
+[case testTupleOfPrimitives]
+from typing import Any
+
+def is_instance(x: Any) -> bool:
+    return isinstance(x, (str, int, bytes))
+
+[out]
+def is_instance(x):
+    x :: object
+    r0, r1, r2 :: bit
+    r3 :: bool
+L0:
+    r0 = PyUnicode_Check(x)
+    if r0 goto L3 else goto L1 :: bool
+L1:
+    r1 = PyLong_Check(x)
+    if r1 goto L3 else goto L2 :: bool
+L2:
+    r2 = PyBytes_Check(x)
+    if r2 goto L3 else goto L4 :: bool
+L3:
+    r3 = 1
+    goto L5
+L4:
+    r3 = 0
+L5:
+    return r3