Iluvatar-mrv100 SDK 4.3.0

vllm/inputs/parse.py

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+# SPDX-License-Identifier: Apache-2.0
+from collections.abc import Sequence
+from typing import Literal, Optional, TypedDict, Union, cast, overload
+
+from typing_extensions import TypeIs
+
+from vllm.utils import is_list_of
+
+from .data import (ExplicitEncoderDecoderPrompt, ProcessorInputs, PromptType,
+                   SingletonInputs, SingletonPrompt, TextPrompt, TokensPrompt)
+
+
+class ParsedText(TypedDict):
+    content: str
+    is_tokens: Literal[False]
+
+
+class ParsedTokens(TypedDict):
+    content: list[int]
+    is_tokens: Literal[True]
+
+
+@overload
+def parse_and_batch_prompt(
+        prompt: Union[str, list[str]]) -> Sequence[ParsedText]:
+    ...
+
+
+@overload
+def parse_and_batch_prompt(
+        prompt: Union[list[int], list[list[int]]]) -> Sequence[ParsedTokens]:
+    ...
+
+
+def parse_and_batch_prompt(
+    prompt: Union[str, list[str], list[int], list[list[int]]],
+) -> Union[Sequence[ParsedText], Sequence[ParsedTokens]]:
+    if isinstance(prompt, str):
+        # case 1: a string
+        return [ParsedText(content=prompt, is_tokens=False)]
+
+    if isinstance(prompt, list):
+        if len(prompt) == 0:
+            raise ValueError("please provide at least one prompt")
+
+        if is_list_of(prompt, str):
+            # case 2: array of strings
+            prompt = cast(list[str], prompt)
+            return [
+                ParsedText(content=elem, is_tokens=False) for elem in prompt
+            ]
+        if is_list_of(prompt, int):
+            # case 3: array of tokens
+            prompt = cast(list[int], prompt)
+            return [ParsedTokens(content=prompt, is_tokens=True)]
+        if is_list_of(prompt, list):
+            prompt = cast(list[list[int]], prompt)
+            if len(prompt[0]) == 0:
+                raise ValueError("please provide at least one prompt")
+
+            if is_list_of(prompt[0], int):
+                # case 4: array of token arrays
+                return [
+                    ParsedTokens(content=elem, is_tokens=True)
+                    for elem in prompt
+                ]
+
+    raise TypeError("prompt must be a string, array of strings, "
+                    "array of tokens, or array of token arrays")
+
+
+class ParsedStrPrompt(TypedDict):
+    type: Literal["str"]
+    content: str
+
+
+class ParsedTextPrompt(TypedDict):
+    type: Literal["text"]
+    content: TextPrompt
+
+
+class ParsedTokensPrompt(TypedDict):
+    type: Literal["tokens"]
+    content: TokensPrompt
+
+
+def parse_singleton_prompt(
+    prompt: SingletonPrompt,
+) -> Union[ParsedStrPrompt, ParsedTextPrompt, ParsedTokensPrompt]:
+    if isinstance(prompt, str):
+        return ParsedStrPrompt(type="str", content=prompt)
+    elif isinstance(prompt, dict):
+        if "prompt_token_ids" in prompt:
+            return ParsedTokensPrompt(type="tokens",
+                                      content=prompt)  # type: ignore
+        elif "prompt" in prompt:
+            return ParsedTextPrompt(type="text", content=prompt)
+
+    raise TypeError("inputs must be a string, TextPrompt, or TokensPrompt")
+
+
+def is_token_prompt(prompt: PromptType) -> TypeIs[TokensPrompt]:
+    return isinstance(prompt, dict) and "prompt_token_ids" in prompt
+
+
+def is_explicit_encoder_decoder_prompt(
+        prompt: PromptType) -> TypeIs[ExplicitEncoderDecoderPrompt]:
+    return isinstance(prompt, dict) and "encoder_prompt" in prompt
+
+
+def split_enc_dec_inputs(
+    inputs: ProcessorInputs,
+) -> tuple[Optional[SingletonInputs], SingletonInputs]:
+    if "encoder" in inputs and "decoder" in inputs:
+        # NOTE: This passes pyright but not mypy
+        return (
+            inputs["encoder"],  # type: ignore[typeddict-item]
+            inputs["decoder"],  # type: ignore[typeddict-item]
+        )
+
+    return None, inputs