Error category consolidation #7
|
@ -27,7 +27,7 @@ def execute (command: Commands.Command): MainM Lean.Json := do
|
|||
match (← comm args) with
|
||||
| .ok result => return Lean.toJson result
|
||||
| .error ierror => return Lean.toJson ierror
|
||||
| .error error => pure $ error
|
||||
| .error error => return Lean.toJson $ errorCommand s!"Unable to parse json: {error}"
|
||||
match command.cmd with
|
||||
| "reset" => run reset
|
||||
| "expr.echo" => run expr_echo
|
||||
|
@ -40,10 +40,11 @@ def execute (command: Commands.Command): MainM Lean.Json := do
|
|||
| "proof.printTree" => run proof_print_tree
|
||||
| cmd =>
|
||||
let error: Commands.InteractionError :=
|
||||
{ error := "command", desc := s!"Unknown command {cmd}" }
|
||||
errorCommand s!"Unknown command {cmd}"
|
||||
return Lean.toJson error
|
||||
where
|
||||
errorI (type desc: String): Commands.InteractionError := { error := type, desc := desc }
|
||||
errorCommand := errorI "command"
|
||||
errorIndex := errorI "index"
|
||||
-- Command Functions
|
||||
reset (_: Commands.Reset): MainM (CR Commands.ResetResult) := do
|
||||
|
|
19
README.md
19
README.md
|
@ -27,7 +27,7 @@ build/bin/pantograph MODULES|LEAN_OPTIONS
|
|||
```
|
||||
|
||||
The REPL loop accepts commands as single-line JSON inputs and outputs either an
|
||||
`Error:` (indicating malformed command) or a json return value indicating the
|
||||
`Error:` (indicating malformed command) or a JSON return value indicating the
|
||||
result of a command execution. The command can be passed in one of two formats
|
||||
```
|
||||
command { ... }
|
||||
|
@ -64,7 +64,7 @@ where the application of `assumption` should lead to a failure.
|
|||
|
||||
## Commands
|
||||
|
||||
See `Pantograph/Commands.lean` for a description of the parameters and return values in Json.
|
||||
See `Pantograph/Commands.lean` for a description of the parameters and return values in JSON.
|
||||
- `reset`: Delete all cached expressions and proof trees
|
||||
- `expr.echo {"expr": <expr>}`: Determine the type of an expression and round-trip it
|
||||
- `lib.catalog`: Display a list of all safe Lean symbols in the current context
|
||||
|
@ -78,6 +78,21 @@ See `Pantograph/Commands.lean` for a description of the parameters and return va
|
|||
- `proof.tactic {"treeId": <id>, "stateId": <id>, "goalId": <id>, "tactic": string}`: Execute a tactic on a given proof state
|
||||
- `proof.printTree {"treeId": <id>}`: Print the topological structure of a proof tree
|
||||
|
||||
## Errors
|
||||
|
||||
When an error pertaining to the execution of a command happens, the returning JSON structure is
|
||||
|
||||
``` json
|
||||
{ error: "type", desc: "description" }
|
||||
```
|
||||
Common error forms:
|
||||
* `command`: Indicates malformed command structure which results from either
|
||||
invalid command or a malformed JSON structure that cannot be fed to an
|
||||
individual command.
|
||||
* `index`: Indicates an invariant maintained by the output of one command and
|
||||
input of another is broken. For example, attempting to query a symbol not
|
||||
existing in the library or indexing into a non-existent proof state.
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
If lean encounters stack overflow problems when printing catalog, execute this before running lean:
|
||||
|
|
Loading…
Reference in New Issue