Package gavo :: Package svcs :: Module vizierexprs :: Class ParseNode

Class ParseNode

object --+
         |
        ParseNode

Known Subclasses:

is a parse node, consisting of an operator and children.

The parse trees returned by the various parse functions are built from these.

This is an abstract class; concrete derivations need to define a set _standardOperators containing the normal binary operators for their types and a dictionary _sqlEmitters containing functions returning SQL fragments, or override asSQL.

Instance Methods

__init__(self, children, operator)
x.__init__(...) initializes x; see help(type(x)) for signature

source code

__str__(self)
str(x)

source code

__repr__(self)
repr(x)

source code

asSQL(self, field, sqlPars)

source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Properties
Inherited from `object`: `__class__`

Method Details

init(self, children, operator)
(Constructor)

source code

x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__: (inherited documentation)

str(self)
(Informal representation operator)

source code

str(x)

Overrides: object.__str__: (inherited documentation)

repr(self)
(Representation operator)

source code

repr(x)

Overrides: object.__repr__: (inherited documentation)

Class ParseNode

__init__(self, children, operator) (Constructor)

__str__(self) (Informal representation operator)

__repr__(self) (Representation operator)

init(self, children, operator)
(Constructor)

str(self)
(Informal representation operator)

repr(self)
(Representation operator)