o
    hM                     @   sz  d dl mZmZmZ 	 d dlZg dZG dd dZG dd deZdd	 ZG d
d de	eZ
G dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG d d! d!eZG d"d# d#eZG d$d% d%eZG d&d' d'eZG d(d) d)eZG d*d+ d+eZG d,d- d-eZG d.d/ d/eZG d0d1 d1eZG d2d3 d3eZG d4d5 d5eZG d6d7 d7eZ G d8d9 d9eZ!e Z"e
Z#eZ$e Z%e Z&ed Z'ed:Z(eZ)e Z*e$e*d:Z+ed;Z,ed;Z-eZ.eZ/eZ0eZ1ed;d<Z2eZ3eZ4e Z5e Z6e Z7e Z8e Z9e Z:e Z;e Z<e Z=e!Z>dS )=    )AnyCallableOptionalN)
Constraintbooleancatcorr_cholesky	dependentdependent_propertygreater_thangreater_than_eqindependentinteger_intervalintervalhalf_open_intervalis_dependent	less_thanlower_choleskylower_triangularmultinomialnonnegativenonnegative_integerone_hotpositivepositive_semidefinitepositive_definitepositive_integerrealreal_vectorsimplexsquarestack	symmetricunit_intervalc                   @   (   e Zd ZdZdZdZdd Zdd ZdS )	r   a  
    Abstract base class for constraints.

    A constraint object represents a region over which a variable is valid,
    e.g. within which a variable can be optimized.

    Attributes:
        is_discrete (bool): Whether constrained space is discrete.
            Defaults to False.
        event_dim (int): Number of rightmost dimensions that together define
            an event. The :meth:`check` method will remove this many dimensions
            when computing validity.
    Fr   c                 C   s   t )z
        Returns a byte tensor of ``sample_shape + batch_shape`` indicating
        whether each event in value satisfies this constraint.
        )NotImplementedErrorselfvalue r)   s/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/torch/distributions/constraints.pycheck_   s   zConstraint.checkc                 C   s   | j jdd  d S )N   z())	__class____name__r'   r)   r)   r*   __repr__f      zConstraint.__repr__N)r.   
__module____qualname____doc__is_discrete	event_dimr+   r0   r)   r)   r)   r*   r   M   s    r   c                       sd   e Zd ZdZeed fdd
ZedefddZede	fdd	Z
eedd
dZdd Z  ZS )
_DependentaI  
    Placeholder for variables whose support depends on other variables.
    These variables obey no simple coordinate-wise constraints.

    Args:
        is_discrete (bool): Optional value of ``.is_discrete`` in case this
            can be computed statically. If not provided, access to the
            ``.is_discrete`` attribute will raise a NotImplementedError.
        event_dim (int): Optional value of ``.event_dim`` in case this
            can be computed statically. If not provided, access to the
            ``.event_dim`` attribute will raise a NotImplementedError.
    r5   r6   c                      || _ || _t   d S N)_is_discrete
_event_dimsuper__init__r'   r5   r6   r-   r)   r*   r>   x      z_Dependent.__init__returnc                 C      | j tu r	td| j S )Nz,.is_discrete cannot be determined statically)r;   NotImplementedr%   r/   r)   r)   r*   r5   }      
z_Dependent.is_discretec                 C   rC   )Nz*.event_dim cannot be determined statically)r<   rD   r%   r/   r)   r)   r*   r6      rE   z_Dependent.event_dimc                C   s(   |t u r| j}|t u r| j}t||dS )z
        Support for syntax to customize static attributes::

            constraints.dependent(is_discrete=True, event_dim=1)
        r8   )rD   r;   r<   r7   r?   r)   r)   r*   __call__   s
   z_Dependent.__call__c                 C   s   t d)Nz1Cannot determine validity of dependent constraint)
ValueErrorr'   xr)   r)   r*   r+         z_Dependent.check)r.   r2   r3   r4   rD   r>   propertyboolr5   intr6   rF   r+   __classcell__r)   r)   r@   r*   r7   j   s    r7   c                 C   s
   t | tS )a  
    Checks if ``constraint`` is a ``_Dependent`` object.

    Args:
        constraint : A ``Constraint`` object.

    Returns:
        ``bool``: True if ``constraint`` can be refined to the type ``_Dependent``, False otherwise.

    Examples:
        >>> import torch
        >>> from torch.distributions import Bernoulli
        >>> from torch.distributions.constraints import is_dependent

        >>> dist = Bernoulli(probs=torch.tensor([0.6], requires_grad=True))
        >>> constraint1 = dist.arg_constraints["probs"]
        >>> constraint2 = dist.arg_constraints["logits"]

        >>> for constraint in [constraint1, constraint2]:
        >>>     if is_dependent(constraint):
        >>>         continue
    )
isinstancer7   )
constraintr)   r)   r*   r      s   
r   c                
       sl   e Zd ZdZ	deeddeedef  dee dee	 ddf fd	d
Z
dedef dd fddZ  ZS )_DependentPropertya  
    Decorator that extends @property to act like a `Dependent` constraint when
    called on a class and act like a property when called on an object.

    Example::

        class Uniform(Distribution):
            def __init__(self, low, high):
                self.low = low
                self.high = high

            @constraints.dependent_property(is_discrete=False, event_dim=0)
            def support(self):
                return constraints.interval(self.low, self.high)

    Args:
        fn (Callable): The function to be decorated.
        is_discrete (bool): Optional value of ``.is_discrete`` in case this
            can be computed statically. If not provided, access to the
            ``.is_discrete`` attribute will raise a NotImplementedError.
        event_dim (int): Optional value of ``.event_dim`` in case this
            can be computed statically. If not provided, access to the
            ``.event_dim`` attribute will raise a NotImplementedError.
    Nr8   fn.r5   r6   rB   c                   s   t  | || _|| _d S r:   )r=   r>   r;   r<   )r'   rR   r5   r6   r@   r)   r*   r>      s   
z_DependentProperty.__init__c                 C   s   t || j| jdS )z
        Support for syntax to customize static attributes::

            @constraints.dependent_property(is_discrete=True, event_dim=1)
            def support(self): ...
        r8   )rQ   r;   r<   )r'   rR   r)   r)   r*   rF      s   
z_DependentProperty.__call__r:   )r.   r2   r3   r4   rD   r   r   r   rL   rM   r>   rF   rN   r)   r)   r@   r*   rQ      s     "rQ   c                       sT   e Zd ZdZ fddZedefddZedefddZ	d	d
 Z
dd Z  ZS )_IndependentConstraintz
    Wraps a constraint by aggregating over ``reinterpreted_batch_ndims``-many
    dims in :meth:`check`, so that an event is valid only if all its
    independent entries are valid.
    c                    sB   t |tsJ t |tsJ |dksJ || _|| _t   d S Nr   )rO   r   rM   base_constraintreinterpreted_batch_ndimsr=   r>   )r'   rU   rV   r@   r)   r*   r>      s   z_IndependentConstraint.__init__rB   c                 C   s   | j jS r:   )rU   r5   r/   r)   r)   r*   r5      s   z"_IndependentConstraint.is_discretec                 C   s   | j j| j S r:   )rU   r6   rV   r/   r)   r)   r*   r6      s   z _IndependentConstraint.event_dimc                 C   sp   | j |}| | jk r | j j| j }td| d|  ||jd | | j  d }|d}|S )NzExpected value.dim() >= z	 but got rX   )	rU   r+   dimrV   r6   rG   reshapeshapeall)r'   r(   resultexpectedr)   r)   r*   r+      s   
z_IndependentConstraint.checkc                 C   s*   | j jdd   dt| j d| j dS )Nr,   (z, ))r-   r.   reprrU   rV   r/   r)   r)   r*   r0     s   *z_IndependentConstraint.__repr__)r.   r2   r3   r4   r>   rK   rL   r5   rM   r6   r+   r0   rN   r)   r)   r@   r*   rS      s    rS   c                   @      e Zd ZdZdZdd ZdS )_Booleanz/
    Constrain to the two values `{0, 1}`.
    Tc                 C   s   |dk|dkB S )Nr   r,   r)   r&   r)   r)   r*   r+     s   z_Boolean.checkN)r.   r2   r3   r4   r5   r+   r)   r)   r)   r*   rc         rc   c                   @   s    e Zd ZdZdZdZdd ZdS )_OneHotz'
    Constrain to one-hot vectors.
    Tr,   c                 C   s.   |dk|dkB }| dd}|d|@ S )Nr   r,   rX   )sumeqr\   )r'   r(   
is_booleanis_normalizedr)   r)   r*   r+     s   z_OneHot.checkN)r.   r2   r3   r4   r5   r6   r+   r)   r)   r)   r*   re     s
    re   c                       4   e Zd ZdZdZ fddZdd Zdd Z  ZS )	_IntegerIntervalzH
    Constrain to an integer interval `[lower_bound, upper_bound]`.
    Tc                    r9   r:   lower_boundupper_boundr=   r>   r'   rm   rn   r@   r)   r*   r>   ,  rA   z_IntegerInterval.__init__c                 C   s    |d dk| j |k@ || jk@ S Nr,   r   rm   rn   r&   r)   r)   r*   r+   1  s   z_IntegerInterval.checkc                 C   .   | j jdd  }|d| j d| j d7 }|S Nr,   (lower_bound=z, upper_bound=r`   r-   r.   rm   rn   r'   
fmt_stringr)   r)   r*   r0   6  
   z_IntegerInterval.__repr__	r.   r2   r3   r4   r5   r>   r+   r0   rN   r)   r)   r@   r*   rk   %  s    rk   c                       rj   )	_IntegerLessThanzA
    Constrain to an integer interval `(-inf, upper_bound]`.
    Tc                       || _ t   d S r:   rn   r=   r>   r'   rn   r@   r)   r*   r>   E     z_IntegerLessThan.__init__c                 C   s   |d dk|| j k@ S rp   rn   r&   r)   r)   r*   r+   I     z_IntegerLessThan.checkc                 C   &   | j jdd  }|d| j d7 }|S Nr,   z(upper_bound=r`   r-   r.   rn   rv   r)   r)   r*   r0   L     z_IntegerLessThan.__repr__ry   r)   r)   r@   r*   rz   >      rz   c                       rj   )	_IntegerGreaterThanz@
    Constrain to an integer interval `[lower_bound, inf)`.
    Tc                    r{   r:   rm   r=   r>   r'   rm   r@   r)   r*   r>   Y  r~   z_IntegerGreaterThan.__init__c                 C   s   |d dk|| j k@ S rp   rm   r&   r)   r)   r*   r+   ]  r   z_IntegerGreaterThan.checkc                 C   r   Nr,   rt   r`   r-   r.   rm   rv   r)   r)   r*   r0   `  r   z_IntegerGreaterThan.__repr__ry   r)   r)   r@   r*   r   R  r   r   c                   @   s   e Zd ZdZdd ZdS )_RealzF
    Trivially constrain to the extended real line `[-inf, inf]`.
    c                 C   s   ||kS r:   r)   r&   r)   r)   r*   r+   k  rJ   z_Real.checkN)r.   r2   r3   r4   r+   r)   r)   r)   r*   r   f  s    r   c                       0   e Zd ZdZ fddZdd Zdd Z  ZS )_GreaterThanz=
    Constrain to a real half line `(lower_bound, inf]`.
    c                    r{   r:   r   r   r@   r)   r*   r>   t  r~   z_GreaterThan.__init__c                 C   s
   | j |k S r:   r   r&   r)   r)   r*   r+   x     
z_GreaterThan.checkc                 C   r   r   r   rv   r)   r)   r*   r0   {  r   z_GreaterThan.__repr__r.   r2   r3   r4   r>   r+   r0   rN   r)   r)   r@   r*   r   o  
    r   c                       r   )_GreaterThanEqz=
    Constrain to a real half line `[lower_bound, inf)`.
    c                    r{   r:   r   r   r@   r)   r*   r>     r~   z_GreaterThanEq.__init__c                 C   s
   | j |kS r:   r   r&   r)   r)   r*   r+     r   z_GreaterThanEq.checkc                 C   r   r   r   rv   r)   r)   r*   r0     r   z_GreaterThanEq.__repr__r   r)   r)   r@   r*   r     r   r   c                       r   )	_LessThanz>
    Constrain to a real half line `[-inf, upper_bound)`.
    c                    r{   r:   r|   r}   r@   r)   r*   r>     r~   z_LessThan.__init__c                 C   s
   || j k S r:   r   r&   r)   r)   r*   r+     r   z_LessThan.checkc                 C   r   r   r   rv   r)   r)   r*   r0     r   z_LessThan.__repr__r   r)   r)   r@   r*   r     r   r   c                       r   )	_IntervalzD
    Constrain to a real interval `[lower_bound, upper_bound]`.
    c                    r9   r:   rl   ro   r@   r)   r*   r>     rA   z_Interval.__init__c                 C   s   | j |k|| jk@ S r:   rq   r&   r)   r)   r*   r+     r1   z_Interval.checkc                 C   rr   rs   ru   rv   r)   r)   r*   r0     rx   z_Interval.__repr__r   r)   r)   r@   r*   r     
    r   c                       r   )_HalfOpenIntervalzD
    Constrain to a real interval `[lower_bound, upper_bound)`.
    c                    r9   r:   rl   ro   r@   r)   r*   r>     rA   z_HalfOpenInterval.__init__c                 C   s   | j |k|| jk @ S r:   rq   r&   r)   r)   r*   r+     r1   z_HalfOpenInterval.checkc                 C   rr   rs   ru   rv   r)   r)   r*   r0     rx   z_HalfOpenInterval.__repr__r   r)   r)   r@   r*   r     r   r   c                   @   rb   )_Simplexz
    Constrain to the unit simplex in the innermost (rightmost) dimension.
    Specifically: `x >= 0` and `x.sum(-1) == 1`.
    r,   c                 C   s(   t j|dkdd|dd  dk @ S )Nr   rX   rY   r,   ư>)torchr\   rf   absr&   r)   r)   r*   r+     s   (z_Simplex.checkNr.   r2   r3   r4   r6   r+   r)   r)   r)   r*   r         r   c                   @   r$   )	_Multinomiala3  
    Constrain to nonnegative integer values summing to at most an upper bound.

    Note due to limitations of the Multinomial distribution, this currently
    checks the weaker condition ``value.sum(-1) <= upper_bound``. In the future
    this may be strengthened to ``value.sum(-1) == upper_bound``.
    Tr,   c                 C   s
   || _ d S r:   r   r}   r)   r)   r*   r>     r   z_Multinomial.__init__c                 C   s"   |dkj dd|jdd| jk@ S )Nr   rX   r   )r\   rf   rn   rH   r)   r)   r*   r+     s   "z_Multinomial.checkN)r.   r2   r3   r4   r5   r6   r>   r+   r)   r)   r)   r*   r     s    r   c                   @   rb   )_LowerTriangularz8
    Constrain to lower-triangular square matrices.
       c                 C   s.   |  }||k|jd d d dd S )NrW   rX   r   )trilviewr[   min)r'   r(   
value_trilr)   r)   r*   r+     s   &z_LowerTriangular.checkNr   r)   r)   r)   r*   r     rd   r   c                   @   rb   )_LowerCholeskyzP
    Constrain to lower-triangular square matrices with positive diagonals.
    r   c                 C   sR   |  }||k|jd d d dd }|jddddkdd }||@ S )Nr   rW   rX   r   )dim1dim2)r   r   r[   r   diagonal)r'   r(   r   r   positive_diagonalr)   r)   r*   r+     s
   $z_LowerCholesky.checkNr   r)   r)   r)   r*   r     rd   r   c                   @   rb   )_CorrCholeskyz}
    Constrain to lower-triangular square matrices with positive diagonals and each
    row vector being of unit length.
    r   c                 C   sZ   t |jj|d d }t jj| dd}|d  	|j
dd}t ||@ S )NrX   
   r         ?)r   finfodtypeepssizelinalgnormdetachr   ler\   r   r+   )r'   r(   tolrow_normunit_row_normr)   r)   r*   r+     s
   z_CorrCholesky.checkNr   r)   r)   r)   r*   r     r   r   c                   @   rb   )_Squarez'
    Constrain to square matrices.
    r   c                 C   s0   t j|jd d |jd |jd kt j|jdS )Nr   rX   )r   
fill_valuer   device)r   fullr[   rL   r   r&   r)   r)   r*   r+   #  s   z_Square.checkNr   r)   r)   r)   r*   r     rd   r   c                           e Zd ZdZ fddZ  ZS )
_Symmetricz1
    Constrain to Symmetric square matrices.
    c                    s6   t  |}| s|S tj||jddddS )Nr   )atolr   rX   )r=   r+   r\   r   isclosemT)r'   r(   square_checkr@   r)   r*   r+   1  s   z_Symmetric.checkr.   r2   r3   r4   r+   rN   r)   r)   r@   r*   r   ,      r   c                       r   )_PositiveSemidefinitez6
    Constrain to positive-semidefinite matrices.
    c                    s0   t  |}| s|S tj|ddS )Nr   rX   )r=   r+   r\   r   r   eigvalshger'   r(   	sym_checkr@   r)   r*   r+   =  s   z_PositiveSemidefinite.checkr   r)   r)   r@   r*   r   8  r   r   c                       r   )_PositiveDefinitez2
    Constrain to positive-definite matrices.
    c                    s,   t  |}| s|S tj|jdS rT   )r=   r+   r\   r   r   cholesky_exinforg   r   r@   r)   r*   r+   I  s   z_PositiveDefinite.checkr   r)   r)   r@   r*   r   D  r   r   c                       sN   e Zd ZdZd fdd	ZedefddZedefd	d
Z	dd Z
  ZS )_Catz
    Constraint functor that applies a sequence of constraints
    `cseq` at the submatrices at dimension `dim`,
    each of size `lengths[dim]`, in a way compatible with :func:`torch.cat`.
    r   Nc                    sn   t dd |D sJ t|| _|d u rdgt| j }t|| _t| jt| jks-J || _t   d S )Nc                 s       | ]}t |tV  qd S r:   rO   r   .0cr)   r)   r*   	<genexpr>X      z _Cat.__init__.<locals>.<genexpr>r,   )r\   listcseqlenlengthsrY   r=   r>   )r'   r   rY   r   r@   r)   r*   r>   W  s   

z_Cat.__init__rB   c                 C      t dd | jD S )Nc                 s       | ]}|j V  qd S r:   r5   r   r)   r)   r*   r   c      z#_Cat.is_discrete.<locals>.<genexpr>anyr   r/   r)   r)   r*   r5   a     z_Cat.is_discretec                 C   r   )Nc                 s   r   r:   r6   r   r)   r)   r*   r   g  r   z!_Cat.event_dim.<locals>.<genexpr>)maxr   r/   r)   r)   r*   r6   e  r   z_Cat.event_dimc                 C   s~   |   | j   kr|  k sJ  J g }d}t| j| jD ]\}}|| j ||}||| || }qt|| j S rT   )	rY   zipr   r   narrowappendr+   r   r   )r'   r(   checksstartconstrlengthvr)   r)   r*   r+   i  s   (
z
_Cat.check)r   Nr.   r2   r3   r4   r>   rK   rL   r5   rM   r6   r+   rN   r)   r)   r@   r*   r   P  s    
r   c                       sN   e Zd ZdZd fdd	ZedefddZedefdd	Z	d
d Z
  ZS )_Stackz
    Constraint functor that applies a sequence of constraints
    `cseq` at the submatrices at dimension `dim`,
    in a way compatible with :func:`torch.stack`.
    r   c                    s4   t dd |D sJ t|| _|| _t   d S )Nc                 s   r   r:   r   r   r)   r)   r*   r   |  r   z"_Stack.__init__.<locals>.<genexpr>)r\   r   r   rY   r=   r>   )r'   r   rY   r@   r)   r*   r>   {  s   
z_Stack.__init__rB   c                 C   r   )Nc                 s   r   r:   r   r   r)   r)   r*   r     r   z%_Stack.is_discrete.<locals>.<genexpr>r   r/   r)   r)   r*   r5     r   z_Stack.is_discretec                 C   s.   t dd | jD }| j| dk r|d7 }|S )Nc                 s   r   r:   r   r   r)   r)   r*   r     r   z#_Stack.event_dim.<locals>.<genexpr>r   r,   )r   r   rY   )r'   rY   r)   r)   r*   r6     s   z_Stack.event_dimc                    sh       j   kr  k sJ  J  fddt j D }tdd t| jD  j S )Nc                    s   g | ]	}  j|qS r)   )selectrY   )r   ir&   r)   r*   
<listcomp>      z _Stack.check.<locals>.<listcomp>c                 S   s   g | ]	\}}| |qS r)   )r+   )r   r   r   r)   r)   r*   r     r   )rY   ranger   r   r!   r   r   )r'   r(   vsr)   r&   r*   r+     s
   ( z_Stack.check)r   r   r)   r)   r@   r*   r   t  s    r   r,   g        r   )?typingr   r   r   r   __all__r   r7   r   rK   rQ   rS   rc   re   rk   rz   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r	   r
   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r#   r   r   r   r   r   r   r    r"   r   r   r   r!   r)   r)   r)   r*   <module>   sx   !#/1(	$!

