Added support for bidirectional type inference when assigning an expr… #10585
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…ession to an unpacked tuple literal and all of the items in the tuple have a declared type. This addresses #10481.
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Diff from mypy_primer, showing the effect of this PR on open source code: sympy (https://github.com/sympy/sympy)
- .../projects/sympy/sympy/tensor/array/expressions/array_expressions.py:1030:70 - error: Argument of type "Unknown | Basic" cannot be assigned to parameter "obj" of type "Sized" in function "len"
+ .../projects/sympy/sympy/tensor/array/expressions/array_expressions.py:1030:70 - error: Argument of type "Unknown | Tuple | Basic" cannot be assigned to parameter "obj" of type "Sized" in function "len"
- Type "Unknown | Basic" is not assignable to type "Sized"
+ Type "Unknown | Tuple | Basic" is not assignable to type "Sized"
+ .../projects/sympy/sympy/tensor/array/expressions/array_expressions.py:1030:80 - error: No overloads for "__getitem__" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/array_expressions.py:1030:80 - error: Argument of type "Unknown | Tuple" cannot be assigned to parameter "key" of type "slice[Any, Any, Any]" in function "__getitem__"
+ Type "Unknown | Tuple" is not assignable to type "slice[Any, Any, Any]"
+ "Tuple" is not assignable to "slice[Any, Any, Any]" (reportArgumentType)
- .../projects/sympy/sympy/tensor/array/expressions/arrayexpr_derivatives.py:64:2 - error: Argument of type "(expr: ArraySymbol, x: _ArrayExpr) -> (PermuteDims | Zero | ZeroArray)" cannot be assigned to parameter of type "(...) -> NoReturn"
+ .../projects/sympy/sympy/tensor/array/expressions/arrayexpr_derivatives.py:64:2 - error: Argument of type "(expr: ArraySymbol, x: _ArrayExpr) -> (Zero | ZeroArray | Unknown | Basic | PermuteDims)" cannot be assigned to parameter of type "(...) -> NoReturn"
- Type "(expr: ArraySymbol, x: _ArrayExpr) -> (PermuteDims | Zero | ZeroArray)" is not assignable to type "(...) -> NoReturn"
+ Type "(expr: ArraySymbol, x: _ArrayExpr) -> (Zero | ZeroArray | Unknown | Basic | PermuteDims)" is not assignable to type "(...) -> NoReturn"
- Function return type "PermuteDims | Zero | ZeroArray" is incompatible with type "NoReturn"
+ Function return type "Zero | ZeroArray | Unknown | Basic | PermuteDims" is incompatible with type "NoReturn"
- Type "PermuteDims | Zero | ZeroArray" is not assignable to type "NoReturn"
+ Type "Zero | ZeroArray | Unknown | Basic | PermuteDims" is not assignable to type "NoReturn"
- Type "PermuteDims" is not assignable to type "NoReturn" (reportArgumentType)
+ Type "Basic" is not assignable to type "NoReturn" (reportArgumentType)
- .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:81:36 - error: Argument of type "Basic | Unknown | Zero | ZeroArray | PermuteDims | ArrayContraction" cannot be assigned to parameter "base_array" of type "ArrayContraction | ArrayDiagonal | ArrayTensorProduct" in function "__init__"
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:81:36 - error: Argument of type "Basic | Unknown | Zero | ZeroArray | ArrayTensorProduct | ArrayContraction" cannot be assigned to parameter "base_array" of type "ArrayContraction | ArrayDiagonal | ArrayTensorProduct" in function "__init__"
- Type "Basic | Unknown | Zero | ZeroArray | PermuteDims | ArrayContraction" is not assignable to type "ArrayContraction | ArrayDiagonal | ArrayTensorProduct"
+ Type "Basic | Unknown | Zero | ZeroArray | ArrayTensorProduct | ArrayContraction" is not assignable to type "ArrayContraction | ArrayDiagonal | ArrayTensorProduct"
- .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:214:12 - error: Type "ArrayContraction | Basic | Unknown | Zero | ZeroArray | PermuteDims" is not assignable to declared type "ArrayContraction"
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:214:12 - error: Type "ArrayContraction | Basic | Unknown | Zero | ZeroArray | ArrayTensorProduct" is not assignable to declared type "ArrayContraction"
- Type "ArrayContraction | Basic | Unknown | Zero | ZeroArray | PermuteDims" is not assignable to type "ArrayContraction"
+ Type "ArrayContraction | Basic | Unknown | Zero | ZeroArray | ArrayTensorProduct" is not assignable to type "ArrayContraction"
- .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:215:12 - error: Type "PermuteDims" is not assignable to declared type "ArrayContraction"
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:215:12 - error: Type "Zero | ZeroArray | Unknown | Basic | PermuteDims" is not assignable to declared type "ArrayContraction"
+ Type "Zero | ZeroArray | Unknown | Basic | PermuteDims" is not assignable to type "ArrayContraction"
- "PermuteDims" is not assignable to "ArrayContraction" (reportAssignmentType)
+ "Basic" is not assignable to "ArrayContraction" (reportAssignmentType)
- .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:216:12 - error: Type "PermuteDims" is not assignable to declared type "ArrayContraction"
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:216:12 - error: Type "Zero | ZeroArray | Unknown | Basic | PermuteDims" is not assignable to declared type "ArrayContraction"
+ Type "Zero | ZeroArray | Unknown | Basic | PermuteDims" is not assignable to type "ArrayContraction"
- "PermuteDims" is not assignable to "ArrayContraction" (reportAssignmentType)
+ "Basic" is not assignable to "ArrayContraction" (reportAssignmentType)
- .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:217:12 - error: Type "PermuteDims" is not assignable to declared type "ArrayContraction"
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:217:12 - error: Type "Zero | ZeroArray | Unknown | Basic | PermuteDims" is not assignable to declared type "ArrayContraction"
+ Type "Zero | ZeroArray | Unknown | Basic | PermuteDims" is not assignable to type "ArrayContraction"
- "PermuteDims" is not assignable to "ArrayContraction" (reportAssignmentType)
+ "Basic" is not assignable to "ArrayContraction" (reportAssignmentType)
- .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:233:39 - error: Cannot access attribute "contraction_indices" for class "PermuteDims"
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:233:39 - error: Cannot access attribute "contraction_indices" for class "ArrayTensorProduct"
- .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:307:17 - error: Argument of type "PermuteDims | Any | Transpose" cannot be assigned to parameter "value" of type "None" in function "__setitem__"
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:307:17 - error: Argument of type "Zero | ZeroArray | Unknown | Basic | PermuteDims | Any | Transpose" cannot be assigned to parameter "value" of type "None" in function "__setitem__"
- Type "PermuteDims | Any | Transpose" is not assignable to type "None"
+ Type "Zero | ZeroArray | Unknown | Basic | PermuteDims | Any | Transpose" is not assignable to type "None"
- "PermuteDims" is not assignable to "None" (reportArgumentType)
+ "Basic" is not assignable to "None" (reportArgumentType)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "One"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "NegativeOne"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "Zero"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "Integer"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "NaN"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "ComplexInfinity"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "Rational"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "Infinity"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "NegativeInfinity"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:383:32 - error: Cannot access attribute "shape" for class "Float"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:398:25 - error: Cannot access attribute "shape" for class "One"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:398:25 - error: Cannot access attribute "shape" for class "NegativeOne"
+ Attribute "shape" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/tensor/array/expressions/from_array_to_matrix.py:398:25 - error: Cannot access attribute "shape" for class "Zero"
... (truncated 432 lines) ...
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…ession to an unpacked tuple literal and all of the items in the tuple have a declared type. This addresses #10481.