fix: minor corrections around FATAL state (#247)

No substantial changes here, just editorial improvements and
corrections.

When implementing #241, I
noticed a few oversights (see comments).

Signed-off-by: Todd Baert <[email protected]>

Author: toddbaert

Diff for: specification.json

@@ -340,7 +340,7 @@
         {
             "id": "Requirement 1.7.7",
             "machine_id": "requirement_1_7_7",
-            "content": "The client MUST default, run error hooks, and indicate an error if flag resolution is attempted while the provider is in `PROVIDER_FATAL`.",
+            "content": "The client MUST default, run error hooks, and indicate an error if flag resolution is attempted while the provider is in `FATAL`.",
             "RFC 2119 keyword": "MUST",
             "children": []
         },

Diff for: specification/sections/01-flag-evaluation.md

@@ -493,7 +493,7 @@ see: [error codes](../types.md#error-code), [flag value resolution](./02-provide
 
 #### Requirement 1.7.7
 
-> The client **MUST** default, run error hooks, and indicate an error if flag resolution is attempted while the provider is in `PROVIDER_FATAL`.
+> The client **MUST** default, run error hooks, and indicate an error if flag resolution is attempted while the provider is in `FATAL`.
 
 The client defaults and returns the `PROVIDER_FATAL` `error code` if evaluation is attempted after the provider has transitioned to an irrecoverable error state.
 The SDK avoids calling the provider's resolver functions entirely ("short-circuits") if the provider is in this state.

Diff for: specification/sections/05-events.md

@@ -229,9 +229,11 @@ The SDK must update it's internal representation of the provider's state accordi
 | -------------------------------- | ------------------------------------------------------- |
 | `PROVIDER_READY`                 | `READY`                                                 |
 | `PROVIDER_STALE`                 | `STALE`                                                 |
-| `PROVIDER_ERROR`                 | `ERROR`                                                 |
+| `PROVIDER_ERROR`                 | `ERROR`/`FATAL`*                                        |
 | `PROVIDER_CONFIGURATION_CHANGED` | N/A (provider remains in its current state)             |
 | `PROVIDER_CONTEXT_CHANGED`       | N/A (only emitted by SDK during context reconciliation) |
 | `PROVIDER_RECONCILING`           | N/A (only emitted by SDK during context reconciliation) |
 
-see: [provider lifecycle management](01-flag-evaluation.md#17-provider-lifecycle-management)
+\* If the `error code` associated with the error indicates `PROVIDER_FATAL`, the state is set to `FATAL`
+
+see: [provider lifecycle management](01-flag-evaluation.md#17-provider-lifecycle-management), [provider status](../types.md#provider-status) [error codes](../types.md#error-code)

Diff for: specification/types.md

@@ -135,6 +135,7 @@ An enumeration of possible provider states.
 | READY        | The provider has been initialized, and is able to reliably resolve flag values.                    |
 | ERROR        | The provider is initialized but is not able to reliably resolve flag values.                       |
 | STALE        | The provider's cached state is no longer valid and may not be up-to-date with the source of truth. |
+| FATAL        | The provider has entered an irrecoverable error state.                                             |
 | RECONCILING* | The provider is reconciling its state with a context change.                                       |
 
 \* [static context (client-side) paradigm](./glossary.md#static-context-paradigm) only