Struct EnvironmentConfig 

pub struct EnvironmentConfig {

    pub custom_hooks: HashMap<String, HookConfig>,
    pub module_type_provider: Option<IndexMap<String, TypeConfig>>,
    pub custom_macros: Option<Vec<String>>,
    pub enable_reset_cache_on_source_file_changes: Option<bool>,
    pub enable_preserve_existing_memoization_guarantees: bool,
    pub validate_preserve_existing_memoization_guarantees: bool,
    pub validate_exhaustive_memoization_dependencies: bool,
    pub validate_exhaustive_effect_dependencies: ExhaustiveEffectDepsMode,
    pub enable_optional_dependencies: bool,
    pub enable_name_anonymous_functions: bool,
    pub validate_hooks_usage: bool,
    pub validate_ref_access_during_render: bool,
    pub validate_no_set_state_in_render: bool,
    pub enable_use_keyed_state: bool,
    pub validate_no_set_state_in_effects: bool,
    pub validate_no_derived_computations_in_effects: bool,
    pub validate_no_derived_computations_in_effects_exp: bool,
    pub validate_no_jsx_in_try_statements: bool,
    pub validate_static_components: bool,
    pub validate_no_capitalized_calls: Option<Vec<String>>,
    pub validate_blocklisted_imports: Option<Vec<String>>,
    pub validate_source_locations: bool,
    pub validate_no_impure_functions_in_render: bool,
    pub validate_no_freezing_known_mutable_functions: bool,
    pub enable_assume_hooks_follow_rules_of_react: bool,
    pub enable_transitively_freeze_function_expressions: bool,
    pub enable_emit_hook_guards: Option<ExternalFunctionConfig>,
    pub enable_emit_instrument_forget: Option<InstrumentationConfig>,
    pub enable_function_outlining: bool,
    pub enable_jsx_outlining: bool,
    pub assert_valid_mutable_ranges: bool,
    pub throw_unknown_exception_testonly: bool,
    pub enable_custom_type_definition_for_reanimated: bool,
    pub enable_treat_ref_like_identifiers_as_refs: bool,
    pub enable_treat_set_identifiers_as_state_setters: bool,
    pub validate_no_void_use_memo: bool,
    pub enable_allow_set_state_from_refs_in_effects: bool,
    pub enable_verbose_no_set_state_in_effect: bool,
    pub enable_forest: bool,
}

Compiler environment configuration. Contains feature flags and settings.

Fields that would require passing JS functions across the JS/Rust boundary are omitted with TODO comments. The Rust port uses hardcoded defaults for these (e.g., defaultModuleTypeProvider).

Fields

custom_hooks: HashMap<String, HookConfig>

Custom hook type definitions, keyed by hook name.

module_type_provider: Option<IndexMap<String, TypeConfig>>

Pre-resolved module type provider results. Map from module name to TypeConfig, computed by the JS shim.

custom_macros: Option<Vec<String>>

Custom macro-like function names that should have their operands memoized in the same scope (similar to fbt).

enable_reset_cache_on_source_file_changes: Option<bool>

If true, emit code to reset the memo cache on source file changes (HMR/fast refresh). If null (None), HMR detection is conditionally enabled based on NODE_ENV/DEV.

enable_preserve_existing_memoization_guarantees: bool

validate_preserve_existing_memoization_guarantees: bool

validate_exhaustive_memoization_dependencies: bool

validate_exhaustive_effect_dependencies: ExhaustiveEffectDepsMode

enable_optional_dependencies: bool

enable_name_anonymous_functions: bool

validate_hooks_usage: bool

validate_ref_access_during_render: bool

validate_no_set_state_in_render: bool

enable_use_keyed_state: bool

validate_no_set_state_in_effects: bool

validate_no_derived_computations_in_effects: bool

validate_no_derived_computations_in_effects_exp: bool

validate_no_jsx_in_try_statements: bool

validate_static_components: bool

validate_no_capitalized_calls: Option<Vec<String>>

validate_blocklisted_imports: Option<Vec<String>>

validate_source_locations: bool

validate_no_impure_functions_in_render: bool

validate_no_freezing_known_mutable_functions: bool

enable_assume_hooks_follow_rules_of_react: bool

enable_transitively_freeze_function_expressions: bool

enable_emit_hook_guards: Option<ExternalFunctionConfig>

Hook guard configuration. When set, wraps hook calls with dispatcher guard calls.

enable_emit_instrument_forget: Option<InstrumentationConfig>

Instrumentation configuration. When set, emits calls to instrument functions.

enable_function_outlining: bool

enable_jsx_outlining: bool

assert_valid_mutable_ranges: bool

throw_unknown_exception_testonly: bool

enable_custom_type_definition_for_reanimated: bool

enable_treat_ref_like_identifiers_as_refs: bool

enable_treat_set_identifiers_as_state_setters: bool

validate_no_void_use_memo: bool

enable_allow_set_state_from_refs_in_effects: bool

enable_verbose_no_set_state_in_effect: bool

enable_forest: bool

Trait Implementations

impl Clone for EnvironmentConfig

fn clone(&self) -> EnvironmentConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EnvironmentConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for EnvironmentConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for EnvironmentConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for EnvironmentConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.