dmlc--dgl
Minjie Wang
444becf00a
* some file movements * move some codes to deprecated * more deprecation * lint * remove useless test
104 行
2.6 KiB
Python
104 行
2.6 KiB
Python
"""Module for variables."""
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# pylint: disable=invalid-name
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from __future__ import absolute_import
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from .program import get_current_prog
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class VarType(object):
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"""Variable types."""
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# Types for symbolic objects (i.e, they might not be
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# concretized before evaluation.
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FEAT = 0
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FEAT_DICT = 1
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# Types for concrete objects (i.e, they must have values).
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GRAPH = 2
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IDX = 3
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STR = 4
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FUNC = 5
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MAP = 6
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INT = 7
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VAR_TYPE_NAME_MAP = [
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'Feat',
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'FeatDict',
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'GRAPH',
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'Idx',
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'Str',
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'Func',
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'Map',
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'Int',
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]
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class Var(object):
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"""Class for variables in IR.
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Variables represent data in the IR. A variable can contain concrete values.
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Otherwise, it can act as a "symbol", whose values are not materialized at
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the moment, but later.
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Parameters
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----------
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name : str
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The variable name.
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type : int
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The type code.
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data : any, default=None (not concretized)
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The data.
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"""
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__slots__ = ['name', 'typecode', 'data']
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def __init__(self, name, typecode, data):
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self.name = name
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self.typecode = typecode
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self.data = data
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def __str__(self):
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if self.typecode == VarType.STR:
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return '"%s"' % self.data
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else:
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return self.name
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def typestr(self):
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"""Return the type string of this variable."""
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return VAR_TYPE_NAME_MAP[self.typecode]
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def new(typecode, data=None, name=None):
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"""Create a new variable."""
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if name is None:
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cur_prog = get_current_prog()
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name = '_z%d' % cur_prog.varcount
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cur_prog.varcount += 1
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return Var(name, typecode, data)
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def FEAT(data=None, name=None):
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"""Create a variable for feature tensor."""
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return new(VarType.FEAT, data, name)
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def FEAT_DICT(data=None, name=None):
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"""Create a variable for feature dict."""
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return new(VarType.FEAT_DICT, data, name)
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def GRAPH(data=None, name=None):
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"""Create a variable for graph index lambda."""
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return new(VarType.GRAPH, data, name)
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def IDX(data=None, name=None):
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"""Create a variable for index."""
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return new(VarType.IDX, data, name)
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def STR(data=None, name=None):
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"""Create a variable for string value."""
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return new(VarType.STR, data, name)
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def FUNC(data=None, name=None):
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"""Create a variable for function."""
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return new(VarType.FUNC, data, name)
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def MAP(data=None, name=None):
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"""Create a variable for mapping lambda"""
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return new(VarType.MAP, data, name)
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def INT(data=None, name=None):
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"""Create a variable for int value"""
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return new(VarType.INT, data, name)
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