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33c25ce | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 | import ast
import math
import random
import operator as op
# Hack: string type that is always equal in not equal comparisons
class AnyType(str):
def __ne__(self, __value: object) -> bool:
return False
# Our any instance wants to be a wildcard string
any = AnyType("*")
operators = {
ast.Add: op.add,
ast.Sub: op.sub,
ast.Mult: op.mul,
ast.Div: op.truediv,
ast.FloorDiv: op.floordiv,
ast.Pow: op.pow,
ast.BitXor: op.xor,
ast.USub: op.neg,
ast.Mod: op.mod,
ast.BitAnd: op.and_,
ast.BitOr: op.or_,
ast.Invert: op.invert,
ast.And: lambda a, b: 1 if a and b else 0,
ast.Or: lambda a, b: 1 if a or b else 0,
ast.Not: lambda a: 0 if a else 1,
ast.RShift: op.rshift,
ast.LShift: op.lshift
}
# TODO: restructure args to provide more info, generate hint based on args to save duplication
functions = {
"round": {
"args": (1, 2),
"call": lambda a, b = None: round(a, b),
"hint": "number, dp? = 0"
},
"ceil": {
"args": (1, 1),
"call": lambda a: math.ceil(a),
"hint": "number"
},
"floor": {
"args": (1, 1),
"call": lambda a: math.floor(a),
"hint": "number"
},
"min": {
"args": (2, None),
"call": lambda *args: min(*args),
"hint": "...numbers"
},
"max": {
"args": (2, None),
"call": lambda *args: max(*args),
"hint": "...numbers"
},
"randomint": {
"args": (2, 2),
"call": lambda a, b: random.randint(a, b),
"hint": "min, max"
},
"randomchoice": {
"args": (2, None),
"call": lambda *args: random.choice(args),
"hint": "...numbers"
},
"sqrt": {
"args": (1, 1),
"call": lambda a: math.sqrt(a),
"hint": "number"
},
"int": {
"args": (1, 1),
"call": lambda a = None: int(a),
"hint": "number"
},
"iif": {
"args": (3, 3),
"call": lambda a, b, c = None: b if a else c,
"hint": "value, truepart, falsepart"
},
}
autocompleteWords = list({
"text": x,
"value": f"{x}()",
"showValue": False,
"hint": f"{functions[x]['hint']}",
"caretOffset": -1
} for x in functions.keys())
class MathExpression:
@classmethod
def INPUT_TYPES(cls):
return {
"required": {
"expression": ("STRING", {"multiline": True, "dynamicPrompts": False, "pysssss.autocomplete": {
"words": autocompleteWords,
"separator": ""
}}),
},
"optional": {
"a": (any, ),
"b": (any,),
"c": (any, ),
},
"hidden": {"extra_pnginfo": "EXTRA_PNGINFO",
"prompt": "PROMPT"},
}
RETURN_TYPES = ("INT", "FLOAT", )
FUNCTION = "evaluate"
CATEGORY = "utils"
OUTPUT_NODE = True
@classmethod
def IS_CHANGED(s, expression, **kwargs):
if "random" in expression:
return float("nan")
return expression
def get_widget_value(self, extra_pnginfo, prompt, node_name, widget_name):
workflow = extra_pnginfo["workflow"] if "workflow" in extra_pnginfo else { "nodes": [] }
node_id = None
for node in workflow["nodes"]:
name = node["type"]
if "properties" in node:
if "Node name for S&R" in node["properties"]:
name = node["properties"]["Node name for S&R"]
if name == node_name:
node_id = node["id"]
break
if "title" in node:
name = node["title"]
if name == node_name:
node_id = node["id"]
break
if node_id is not None:
values = prompt[str(node_id)]
if "inputs" in values:
if widget_name in values["inputs"]:
value = values["inputs"][widget_name]
if isinstance(value, list):
raise ValueError("Converted widgets are not supported via named reference, use the inputs instead.")
return value
raise NameError(f"Widget not found: {node_name}.{widget_name}")
raise NameError(f"Node not found: {node_name}.{widget_name}")
def get_size(self, target, property):
if isinstance(target, dict) and "samples" in target:
# Latent
if property == "width":
return target["samples"].shape[3] * 8
return target["samples"].shape[2] * 8
else:
# Image
if property == "width":
return target.shape[2]
return target.shape[1]
def evaluate(self, expression, prompt, extra_pnginfo={}, a=None, b=None, c=None):
expression = expression.replace('\n', ' ').replace('\r', '')
node = ast.parse(expression, mode='eval').body
lookup = {"a": a, "b": b, "c": c}
def eval_op(node, l, r):
l = eval_expr(l)
r = eval_expr(r)
l = l if isinstance(l, int) else float(l)
r = r if isinstance(r, int) else float(r)
return operators[type(node.op)](l, r)
def eval_expr(node):
if isinstance(node, ast.Constant) or isinstance(node, ast.Num):
return node.n
elif isinstance(node, ast.BinOp):
return eval_op(node, node.left, node.right)
elif isinstance(node, ast.BoolOp):
return eval_op(node, node.values[0], node.values[1])
elif isinstance(node, ast.UnaryOp):
return operators[type(node.op)](eval_expr(node.operand))
elif isinstance(node, ast.Attribute):
if node.value.id in lookup:
if node.attr == "width" or node.attr == "height":
return self.get_size(lookup[node.value.id], node.attr)
return self.get_widget_value(extra_pnginfo, prompt, node.value.id, node.attr)
elif isinstance(node, ast.Name):
if node.id in lookup:
val = lookup[node.id]
if isinstance(val, (int, float, complex)):
return val
else:
raise TypeError(
f"Compex types (LATENT/IMAGE) need to reference their width/height, e.g. {node.id}.width")
raise NameError(f"Name not found: {node.id}")
elif isinstance(node, ast.Call):
if node.func.id in functions:
fn = functions[node.func.id]
l = len(node.args)
if l < fn["args"][0] or (fn["args"][1] is not None and l > fn["args"][1]):
if fn["args"][1] is None:
toErr = " or more"
else:
toErr = f" to {fn['args'][1]}"
raise SyntaxError(
f"Invalid function call: {node.func.id} requires {fn['args'][0]}{toErr} arguments")
args = []
for arg in node.args:
args.append(eval_expr(arg))
return fn["call"](*args)
raise NameError(f"Invalid function call: {node.func.id}")
elif isinstance(node, ast.Compare):
l = eval_expr(node.left)
r = eval_expr(node.comparators[0])
if isinstance(node.ops[0], ast.Eq):
return 1 if l == r else 0
if isinstance(node.ops[0], ast.NotEq):
return 1 if l != r else 0
if isinstance(node.ops[0], ast.Gt):
return 1 if l > r else 0
if isinstance(node.ops[0], ast.GtE):
return 1 if l >= r else 0
if isinstance(node.ops[0], ast.Lt):
return 1 if l < r else 0
if isinstance(node.ops[0], ast.LtE):
return 1 if l <= r else 0
raise NotImplementedError(
"Operator " + node.ops[0].__class__.__name__ + " not supported.")
else:
raise TypeError(node)
r = eval_expr(node)
return {"ui": {"value": [r]}, "result": (int(r), float(r),)}
NODE_CLASS_MAPPINGS = {
"MathExpression|pysssss": MathExpression,
}
NODE_DISPLAY_NAME_MAPPINGS = {
"MathExpression|pysssss": "Math Expression 🐍",
}
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