86 lines
3.0 KiB
Python
86 lines
3.0 KiB
Python
from typing import Union, List
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import torch
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from torch.nn import Embedding
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from custom_nodes.KepPromptLang.lib.actions.action_utils import get_embedding
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from custom_nodes.KepPromptLang.lib.parser.prompt_segment import PromptSegment
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from custom_nodes.KepPromptLang.lib.action.base import Action, MultiArgAction
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from custom_nodes.KepPromptLang.lib.parser.registration import register_action
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class SumAction(MultiArgAction):
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grammar = 'sum(" arg ("|" arg)+ ")"'
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chars = ["+", "+"]
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display_name = "Sum"
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action_name = "sum"
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description = "Adds the embeddings of the provided segments or actions."
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usage_examples = [
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"A happy sum(cat|dog|shark)",
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]
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def __init__(self, args: List[List[Union[PromptSegment, Action]]]) -> None:
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super().__init__(args)
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self.base_arg = args[0]
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self.additional_args = args[1:]
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def token_length(self) -> int:
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# Sum adds to the embeddings of the base segment, so the length is the length of the base segment
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return sum(seg_or_action.token_length() for seg_or_action in self.base_arg)
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def get_result(self, embedding_module: Embedding) -> torch.Tensor:
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# Calculate the embeddings for the base segment
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all_base_embeddings = [
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get_embedding(seg_or_action, embedding_module)
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for seg_or_action in self.base_arg
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]
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result = torch.cat(all_base_embeddings, dim=1)
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for arg in self.additional_args:
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all_arg_embeddings = [
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get_embedding(seg_or_action, embedding_module) for seg_or_action in arg
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]
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arg_embedding = torch.cat(all_arg_embeddings, dim=1)
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if (
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arg_embedding.shape[-2] == 1
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or result.shape[-2] == arg_embedding.shape[-2]
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):
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result = result.add(arg_embedding)
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else:
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print(
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"WARNING: shape mismatch when trying to apply sum, arg will be averaged"
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)
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result = result.add(
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torch.mean(arg_embedding, dim=1, keepdim=True)
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)
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return result
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# def __repr__(self):
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# return f"sum(\n\tbase_segment={self.base_segment},\n\targs={self.args}\n)"
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def __repr__(self) -> str:
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return f"sum({', '.join(map(str, self.additional_args))})"
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def depth_repr(self, depth=1):
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out = "NudgeAction(\n"
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if isinstance(self.base_arg, Action):
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base_segment_repr = self.base_arg.depth_repr(depth + 1)
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out += "\t" * depth + f"base_segment={base_segment_repr}\n"
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else:
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out += "\t" * depth + f"base_segment={self.base_arg.depth_repr()},\n"
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if isinstance(self.additional_args, Action):
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target_repr = self.additional_args.depth_repr(depth + 1)
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out += "\t" * depth + f"target={target_repr},\n"
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else:
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out += "\t" * depth + f"target={self.additional_args.depth_repr()},\n"
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out += "\t" * depth + f"weight={self.weight},\n"
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out += "\t" * (depth - 1) + ")"
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return out
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