respect config["cache_strings"] in the json validator

python/pydantic_core/core_schema.py

@@ -75,6 +75,8 @@ class CoreConfig(TypedDict, total=False):
             Requires exceptiongroup backport pre Python 3.11.
         coerce_numbers_to_str: Whether to enable coercion of any `Number` type to `str` (not applicable in `strict` mode).
         regex_engine: The regex engine to use for regex pattern validation. Default is 'rust-regex'. See `StringSchema`.
+        cache_strings: Whether to cache strings. Default is `True`, `True` or `'all'` is required to cache strings
+            during general validation since validators don't know if they're in a key or a value.
     """
 
     title: str
@@ -110,6 +112,7 @@ class CoreConfig(TypedDict, total=False):
     validation_error_cause: bool  # default: False
     coerce_numbers_to_str: bool  # default: False
     regex_engine: Literal['rust-regex', 'python-re']  # default: 'rust-regex'
+    cache_strings: bool | Literal['all', 'keys', 'none']  # default: 'True'
 
 
 IncExCall: TypeAlias = 'set[int | str] | dict[int | str, IncExCall] | None'

src/validators/json.rs

@@ -64,7 +64,7 @@ impl Validator for JsonValidator {
                 validator.validate(py, &json_value, &mut json_state)
             }
             None => {
-                let obj = jiter::python_parse(py, json_bytes, true, true.into(), false)
+                let obj = jiter::python_parse(py, json_bytes, true, state.cache_str(), false)
                     .map_err(|e| map_json_err(input, e, json_bytes))?;
                 Ok(obj.unbind())
             }