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d efd Z e j Z d efd Z d efd Z d S )"r a Baseclass for all Jinja nodes. There are a number of nodes available
of different types. There are four major types:
- :class:`Stmt`: statements
- :class:`Expr`: expressions
- :class:`Helper`: helper nodes
- :class:`Template`: the outermost wrapper node
All nodes have fields and attributes. Fields may be other nodes, lists,
or arbitrary values. Fields are passed to the constructor as regular
positional arguments, attributes as keyword arguments. Each node has
two attributes: `lineno` (the line number of the node) and `environment`.
The `environment` attribute is set at the end of the parsing process for
all nodes automatically.
r .r2 linenorG r3 Trg r rG rI Nc | j rt d |rt | t | j k r| j s$t t | j d t t | j dt | j dt | j dk rdnd t
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r Foverridec t | g }|rV| }d|j v r|j |r||_ | | |V| S )z.Set the line numbers of the node and children.rg )r r r3 rg r5 r} )rO rg r r r` s r
set_linenozNode.set_lineno st dV}} 1<<>>D4?**;&(&"(DK KK--// 0 0 0 1 r c t | g }|rD| }||_ | | |D| S )z"Set the environment for all nodes.)r r rG r5 r} )rO rG r r` s r set_environmentzNode.set_environment s[ dV}} 1<<>>D *D KK--// 0 0 0 1 r otherc t | t | urt S t | t | k S r )r= NotImplementedr; rv )rO r s r __eq__z Node.__eq__ sR ::T%[[ ( (! !T%%''((E%2C2C2E2E,F,FFFr c d fd j D }t j d| dS )N, c 3 D K | ]}| d t |d V dS )=N)r6 ).0r rO s r z Node.__repr__.. s= T T1 > >GD!T$:$: > > T T T T T Tr ())joinr2 r= r+ )rO args_strs ` r __repr__z
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d wws||r NN)F)rG r rI r )!r+ r, r- r. r2 r[ Tupler] __annotations__r3 r4 intr\ r_ rP ContainerIteratorrv r} Typer r r r r boolr r r r7 __hash__r r r r r r r g s !#FAGCH """$=JS!===H KKKM****M MQU Mt M M M M( 15-1 AK ,- jS)*
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J 1 1 1 1 3 6 GAE Gd G G G G H4# 4 4 4 4 c r ) metaclassc e Zd ZdZdZdS )Stmtz Base node for all statements.TNr+ r, r- r. r4 r r r r r s ''HHHr r c e Zd ZdZdZdS )Helperz,Nodes that exist in a specific context only.TNr r r r r r s 66HHHr r c 8 e Zd ZU dZdZej e ed< dS )TemplatezjNode that represents a template. This must be the outermost node that
is passed to the compiler.
bodyr N r+ r, r- r. r2 r[ Listr r r r r r r $ s5 F
&,r r c 8 e Zd ZU dZdZej d ed< dS )OutputzA node that holds multiple expressions which are then printed out.
This is used both for the `print` statement and the regular template data.
nodesExprr N)r+ r, r- r. r2 r[ r r r r r r r - s5 F 6&>r r c " e Zd ZU dZdZded< dS )Extendsz Represents an extends statement.)templater r N)r+ r, r- r. r2 r r r r r r 6 s) **
Fr r c e Zd ZU dZdZeed< eed< ej e ed< ej e ed< ej e ed< e
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Forax The for loop. `target` is the target for the iteration (usually a
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of nodes that are used as loop-body, and `else_` a list of nodes for the
`else` block. If no else node exists it has to be an empty list.
For filtered nodes an expression can be stored as `test`, otherwise `None`.
)targetrp r else_test recursiver rp r r r r N) r+ r, r- r. r2 r r r[ r r\ r r r r r r = st FF LLL
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MacrozA macro definition. `name` is the name of the macro, `args` a list of
arguments and `defaults` a list of defaults if there are any. `body` is
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)r@ argsdefaultsr r@ Namer r r r N)
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the unnamed macro as `caller` argument this node holds.
)callr r r Callr r r r r r N) r+ r, r- r. r2 r r[ r r r r r r r f sb 2F
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&,r r c B e Zd ZU dZdZej e ed< ded< dS ) FilterBlockzNode for filter sections.)r filterr Filterr Nr r r r r r r s; ##
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&, r r c x e Zd ZU dZdZej d ed< ej d ed< ej e ed< dS )WithzSpecific node for with statements. In older versions of Jinja the
with statement was implemented on the base of the `Scope` node instead.
.. versionadded:: 2.9.3
)targetsvaluesr r r r r N) r+ r, r- r. r2 r[ r r r r r r r r z sY +F
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ed< dS )BlockzkA node that represents a block.
.. versionchanged:: 3.0.0
the `required` field was added.
)r@ r scopedrequiredr@ r r r N) r+ r, r- r. r2 r] r r[ r r r r r r r r sN 4F
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&, LLLNNNNNr r c 6 e Zd ZU dZdZded< eed< eed< dS )Includez'A node that represents the include tag.)r with_contextignore_missingr r r r N)r+ r, r- r. r2 r r r r r r r sA 11
;Fr r c 6 e Zd ZU dZdZded< eed< eed< dS )Importz&A node that represents the import tag.)r r r r r r r N)r+ r, r- r. r2 r r] r r r r r r s> 00
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FromImporta A node that represents the from import tag. It's important to not
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problem for regular Jinja code, but if this node is used in an extension
extra care must be taken.
The list of names may contain tuples if aliases are wanted.
)r namesr r r r r N) r+ r, r- r. r2 r r[ r r r] r r r r r r r se 3F 6!'#qwsCx 001 2222r r c " e Zd ZU dZdZeed< dS )ExprStmtzAA statement that evaluates an expression and discards the result.r` r` N)r+ r, r- r. r2 r r r r r r r s$ KK
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JJJJJr r c , e Zd ZU dZdZded< eed< dS )Assignz"Assigns an expression to a target.)r r` r r r` N)r+ r, r- r. r2 r r r r r r r s- ,,
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JJJJJr r c b e Zd ZU dZdZded< ej d ed< ej e ed< dS ) AssignBlockz Assigns a block to a target.)r r r r r r r r N)
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:exc:`Impossible` if this was not possible.
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a default context is created which requires the nodes to have
an attached environment.
.. versionchanged:: 2.4
the `eval_ctx` parameter was added.
)r) rO r s r as_constz
Expr.as_const s llr c dS )z8Check if it's possible to assign something to this node.Fr rT s r
can_assignzExpr.can_assign s ur r ) r+ r, r- r. r4 r[ r\ rF r_ r r r r r r r r sj ((H K!8 AE D r r c l e Zd ZU dZdZeed< eed< eed< dZd de j
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dS ) BinExprz%Baseclass for all binary expressions.)leftrightr r operatorTNr rI c \ t | | }|j j r!| j |j j v rt t | j } || j | | j | S # t $ r}t |d }~ww xY wr ) rd rG sandboxedr intercepted_binopsr) r r r r ExceptionrO r fes r r zBinExpr.as_const s #D(33
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rd rG r r intercepted_unopsr) r r` r r r s r r zUnaryExpr.as_const s #D(33
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&r r c 8 e Zd ZU dZdZeed< eed< defdZdS )r a Looks up a name or stores a value in a name.
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)r@ ra r@ ra rI c | j dvS )N> NoneTruenonetrueFalsefalser@ rT s r r zName.can_assign& s y RRRr N r+ r, r- r. r2 r] r r r r r r r r s[ F
III HHHSD S S S S S Sr r c 8 e Zd ZU dZdZeed< eed< defdZdS )NSRefz)Reference to a namespace value assignment)r@ rC r@ rC rI c dS )NTr rT s r r zNSRef.can_assign1 s
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IIID r r c e Zd ZdZdZdS )LiteralzBaseclass for literals.TNr r r r r r 9 s !!HHHr r c
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dS )Consta All constant values. The parser will return this node for simple
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r r Nr rI c | j S r r r s r r zConst.as_constI s
zr rg rG zt.Optional[Environment]c \ ddl m} || st | ||| S )zReturn a const object if the value is representable as
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has_safe_reprrf )compilerr" r) )clsr rg rG r" s r from_untrustedzConst.from_untrustedL sI ,+++++ }U## ,, s5[AAAAr r r )r+ r, r- r. r2 r[ r_ r r\ rF r classmethodr r% r r r r r ? s F 5LLL K!8 AE #'15 B BuB
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)itemsra r, ra Nr rI .c d t | t fd| j D S )Nc 3 B K | ]}| V d S r r r xr s r r z!Tuple.as_const..y s/ >>aQZZ))>>>>>>r )rd r; r, r s `r r zTuple.as_constw s7 #D(33>>>>4:>>>>>>r c H | j D ]}| s dS dS )NFT)r, r )rO r{ s r r zTuple.can_assign{ s6 J D??$$
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r4 Pairr, Nr rI c d t | t fd| j D S )Nc 3 B K | ]}| V d S r r/ r0 s r r z Dict.as_const.. s/ ==QAJJx((======r )rd dictr, r s `r r z
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Keywordz>A key, value pair for keyword arguments where key is a string.r? r@ r Nr rI c d t | | }| j | j | fS r )rd r@ r r r s r r zKeyword.as_const s. #D(33x,,X6666r r )r+ r, r- r. r2 r] r r r[ r\ rF r r_ r r r r rC rC sp HH
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)r expr1expr2r rG rH Nr rI c t | | }| j | r| j | S | j t | j | S r )rd r r rG rH r) r s r r zCondExpr.as_const si #D(33 9 h ' ' 1:&&x00 0 : ,, z""8,,,r r ) r+ r, r- r. r2 r r r[ r\ rF r_ r r r r rF rF s| (F
JJJ KKK :d - -K!8 -AE - - - - - -r rF )_FilterTestCommonr r c fd| j D }t fd| j D }| j P | | j n!# t $ r}t |d }~ww xY w| j P | | j n!# t $ r}t |d }~ww xY w||fS )Nc : g | ]}| S r r/ r0 s r r7 z!args_as_const.. s% 4 4 4QAJJx 4 4 4r c 3 B K | ]}| V d S r r/ r0 s r r z args_as_const.. s/ <<1!**X&&<<<<<.constx s {t<<)) )r ) rd r[ r\ r r_ slicerw rx ry )rO r r} s ` r r zSlice.as_constu s #D(33 *qz$' *AJqu,= * * * * * *
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r r Nr rI c p t | d fd| j D S )Nrj c 3 \ K | ]&}t | V 'd S r )r] r r0 s r r z"Concat.as_const.. s7 EEQs1::h//00EEEEEEr )rd r r r s `r r zConcat.as_const s; #D(33wwEEEE$*EEEEEEr r )
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)expropsr Operandr Nr rI c 0 t | | }| j | x}} | j D ]>}|j | }t |j || }|s dS |}?n!# t $ r}t |d }~ww xY w|S rK )rd r r r r' opr r) )rO r r r r new_valuer s r r zCompare.as_const s #D(33 ++H555
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JJJJJr r c e Zd ZdZdZdS )Mulz(Multiplies the left with the right node.r Nr+ r, r- r. r r r r r r s 22HHHr r c e Zd ZdZdZdS )Divz#Divides the left by the right node.r Nr r r r r r s --HHHr r c e Zd ZdZdZdS )FloorDivzbDivides the left by the right node and converts the
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Nr r r r r r s HHHr r c e Zd ZdZdZdS )Addz Add the left to the right node.r Nr r r r r r s ))HHHr r c e Zd ZdZdZdS )Subz&Subtract the right from the left node.r Nr r r r r r s 00HHHr r c e Zd ZdZdZdS )ModzLeft modulo right.r Nr r r r r r s HHHr r c e Zd ZdZdZdS )PowzLeft to the power of right.r Nr r r r r r s %%HHHr r c H e Zd ZdZdZddej e dej fdZ dS )AndzShort circuited AND.andNr rI c t | | }| j | o| j | S r rd r r r r s r r z And.as_const s< #D(33y!!(++M
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r+ r, r- r. r r[ r\ rF r_ r r r r r r sX HN NK!8 NAE N N N N N Nr r c H e Zd ZdZdZddej e dej fdZ dS )OrzShort circuited OR.orNr rI c t | | }| j | p| j | S r r r s r r z Or.as_const s< #D(33y!!(++Ltz/B/B8/L/LLr r r r r r r r sX HM MK!8 MAE M M M M M Mr r c e Zd ZdZdZdS )NotzNegate the expression.r Nr r r r r r s HHHr r c e Zd ZdZdZdS )Negz Make the expression negative.r Nr r r r r r s ''HHHr r c e Zd ZdZdZdS )Posz8Make the expression positive (noop for most expressions)r Nr r r r r r s BBHHHr r c " e Zd ZU dZdZeed< dS )EnvironmentAttributezLoads an attribute from the environment object. This is useful for
extensions that want to call a callback stored on the environment.
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IIIIIr r c , e Zd ZU dZdZeed< eed< dS )ExtensionAttributezReturns the attribute of an extension bound to the environment.
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:meth:`~jinja2.ext.Extension.attr` method on an extension.
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identifierr@ r r@ Nr r r r r r s3 $FOOO
IIIIIr r c " e Zd ZU dZdZeed< dS ) ImportedNamea& If created with an import name the import name is returned on node
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function from the cgi module on evaluation. Imports are optimized by the
compiler so there is no need to assign them to local variables.
)
importnamer Nr r r r r r s* FOOOOOr r c * e Zd ZU dZdZeed< ddZdS ) InternalNamea6 An internal name in the compiler. You cannot create these nodes
yourself but the parser provides a
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a new identifier for you. This identifier is not available from the
template and is not treated specially by the compiler.
r r@ rI Nc t d )NzKCan't create internal names. Use the `free_identifier` method on a parser.rk rT s r rP zInternalName.__init__2 s
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.. versionadded:: 2.5
r r Nr rI c t | | }|j rt | j | }|j rt
| S |S r )rd rN r) r r rM r )rO r r s r r z MarkSafeIfAutoescape.as_constN sY $D(33 ,, y!!(++ $<< r r )r+ r, r- r. r2 r r r[ r\ rF r r r_ r r r r r r D sr F
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;/
r r c e Zd ZdZdS )ContextReferenceaM Returns the current template context. It can be used like a
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variable named `foo`::
Assign(Name('foo', ctx='store'),
Getattr(ContextReference(), 'name'))
This is basically equivalent to using the
:func:`~jinja2.pass_context` decorator when using the high-level
API, which causes a reference to the context to be passed as the
first argument to a function.
Nr* r r r r r Z s r r c e Zd ZdZdS )DerivedContextReferencezReturn the current template context including locals. Behaves
exactly like :class:`ContextReference`, but includes local
variables, such as from a ``for`` loop.
.. versionadded:: 2.11
Nr* r r r r r l s r r c e Zd ZdZdS )ContinuezContinue a loop.Nr* r r r r r u s r r c e Zd ZdZdS )Breakz
Break a loop.Nr* r r r r r y s r r c 8 e Zd ZU dZdZej e ed< dS )ScopezAn artificial scope.r r Nr r r r r r } s/
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&,r r c B e Zd ZU dZdZeed< ej e ed< dS ) OverlayScopea An overlay scope for extensions. This is a largely unoptimized scope
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a sub scope from a dictionary or dictionary like object. The `context`
field has to evaluate to a dictionary object.
Example usage::
OverlayScope(context=self.call_method('get_context'),
body=[...])
.. versionadded:: 2.10
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&,r r c 8 e Zd ZU dZdZej e ed< dS )EvalContextModifiera
Modifies the eval context. For each option that should be modified,
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)optionsr N) r+ r, r- r. r2 r[ r rC r r r r r r s5 F
VG_ r r c 8 e Zd ZU dZdZej e ed< dS )ScopedEvalContextModifierzModifies the eval context and reverts it later. Works exactly like
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