> ## Documentation Index > Fetch the complete documentation index at: https://docs.bijection.com/llms.txt > Use this file to discover all available pages before exploring further. # Class: ProgramController > Not exported: an exported type refers to it. [computations/adapters](https://docs.bijection.com/api/modules/computations_adapters).ProgramController Not exported: an exported type refers to it. ## Constructors ### constructor • **new ProgramController**(`nowMs`, `references`, `environments`, `responses`, `scenarioInput`, `adapter?`, `rootScope?`, `work?`) #### Parameters | Name | Type | Default value | | :- | :- | :- | | `nowMs` | `number` | `undefined` | | `references` | `Record`\<`string`, [`Value`](https://docs.bijection.com/api/modules/values#value)> | `undefined` | | `environments` | `ReadonlySet`\<`string`> | `undefined` | | `responses` | readonly [`EnvironmentResponse`](https://docs.bijection.com/api/modules/scenarios#environmentresponse)\[] | `undefined` | | `scenarioInput` | [`Value`](https://docs.bijection.com/api/modules/values#value) | `undefined` | | `adapter?` | [`ProgramContextAdapter`](https://docs.bijection.com/api/modules/computations_adapters#programcontextadapter) | `undefined` | | `rootScope` | `string` | `""` | | `work` | `Object` | `undefined` | | `work.branches` | `number` | `0` | ## Properties ### issued • `Private` **issued**: `undefined` | [`Issued`](https://docs.bijection.com/api/modules/computations_adapters#issued) *** ### sequence • `Private` **sequence**: `number` = `0` *** ### requests • `Private` `Readonly` **requests**: `WeakMap`\<`object`, \{ `kind`: `"operation"` ; `id`: `string` ; `path`: `string` ; `invoke`: [`ComputationFunction`](https://docs.bijection.com/api/modules/browser#computationfunction) ; `recover`: [`ComputationFunction`](https://docs.bijection.com/api/modules/browser#computationfunction) ; `contractDigest`: `string` ; `args`: [`ScenarioExpression`](https://docs.bijection.com/api/modules/scenarios#scenarioexpression) }> *** ### violation • `Private` **violation**: `undefined` | `Error` *** ### bodyFailed • `Private` **bodyFailed**: `boolean` = `false` *** ### contexts • `Private` `Readonly` **contexts**: `WeakMap`\<`object`, `string`> *** ### results • `Private` `Readonly` **results**: `Map`\<`object`, \{ `step`: `string` ; `path`: `string`\[] ; `root`: [`Value`](https://docs.bijection.com/api/modules/values#value) ; `json`: `string` }> *** ### referenced • `Private` `Readonly` **referenced**: `Map`\<`string`, `object`> *** ### environmentHandles • `Private` `Readonly` **environmentHandles**: `EnvironmentHandles` *** ### machinePaths • `Private` `Readonly` **machinePaths**: `Map`\<[`DurableMachine`](https://docs.bijection.com/api/modules/computations_adapters#durablemachine), `string`\[]> *** ### capturedMachines • `Private` `Readonly` **capturedMachines**: `Map`\<`string`, [`DurableMachine`](https://docs.bijection.com/api/modules/computations_adapters#durablemachine)> *** ### templates • `Private` `Readonly` **templates**: `Map`\<[`DurableTemplate`](https://docs.bijection.com/api/modules/computations_adapters#durabletemplate), `string`\[]> *** ### capturedTemplates • `Private` `Readonly` **capturedTemplates**: `Map`\<`string`, [`DurableTemplate`](https://docs.bijection.com/api/modules/computations_adapters#durabletemplate)> *** ### nowMs • `Private` `Readonly` **nowMs**: `number` *** ### references • `Private` `Readonly` **references**: `Record`\<`string`, [`Value`](https://docs.bijection.com/api/modules/values#value)> *** ### environments • `Private` `Readonly` **environments**: `ReadonlySet`\<`string`> *** ### responses • `Private` `Readonly` **responses**: readonly [`EnvironmentResponse`](https://docs.bijection.com/api/modules/scenarios#environmentresponse)\[] *** ### scenarioInput • `Private` `Readonly` **scenarioInput**: [`Value`](https://docs.bijection.com/api/modules/values#value) *** ### adapter • `Private` `Optional` `Readonly` **adapter**: [`ProgramContextAdapter`](https://docs.bijection.com/api/modules/computations_adapters#programcontextadapter) *** ### rootScope • `Private` `Readonly` **rootScope**: `string` = `""` *** ### work • `Private` `Readonly` **work**: `Object` #### Type declaration | Name | Type | | :- | :- | | `branches` | `number` | ## Methods ### run ▸ **run**(`program`, `input`, `frame`, `resumed`): [`ProgramReply`](https://docs.bijection.com/api/modules/computations_adapters#programreply) #### Parameters | Name | Type | | :- | :- | | `program` | [`DurableMachine`](https://docs.bijection.com/api/modules/computations_adapters#durablemachine) | | `input` | [`Value`](https://docs.bijection.com/api/modules/values#value) | | `frame` | `string` \| `null` | | `resumed` | [`Answer`](https://docs.bijection.com/api/modules/computations_adapters#answer) \| [`Answer`](https://docs.bijection.com/api/modules/computations_adapters#answer)\[] \| `null` | #### Returns [`ProgramReply`](https://docs.bijection.com/api/modules/computations_adapters#programreply) *** ### advance ▸ `Private` **advance**(`stack`, `mode`, `value`): [`ProgramReply`](https://docs.bijection.com/api/modules/computations_adapters#programreply) #### Parameters | Name | Type | | :- | :- | | `stack` | [`Activation`](https://docs.bijection.com/api/modules/computations_adapters#activation)\[] | | `mode` | `0` \| `1` \| `2` | | `value` | `unknown` | #### Returns [`ProgramReply`](https://docs.bijection.com/api/modules/computations_adapters#programreply) *** ### captureMachines ▸ `Private` **captureMachines**(`program`): `void` #### Parameters | Name | Type | | :- | :- | | `program` | [`DurableMachine`](https://docs.bijection.com/api/modules/computations_adapters#durablemachine) | #### Returns `void` *** ### map ▸ `Private` **map**\<`T`, `U`>(`prefix`, `group`, `items`, `options`, `each`): `Promise`\<`U`\[]> #### Type parameters | Name | | :- | | `T` | | `U` | #### Parameters | Name | Type | | :- | :- | | `prefix` | `string` | | `group` | `string` | | `items` | readonly `T`\[] | | `options` | `Object` | | `options.key` | (`item`: `T`) => `string` | | `each` | (`item`: `T`, `scope`: [`ProcedureContext`](https://docs.bijection.com/api/modules/scenarios#procedurecontext)) => `Promise`\<`U`> | #### Returns `Promise`\<`U`\[]> *** ### advanceMap ▸ `Private` **advanceMap**(`parallel`, `answers`, `stack`): \{ `state`: `"complete"` ; `value`: [`Value`](https://docs.bijection.com/api/modules/values#value)\[] } | \{ `state`: `"failed"` ; `failures`: \{ `key`: `string` ; `name`: `string` ; `message`: `string` }\[] } | `Extract`\<[`ProgramReply`](https://docs.bijection.com/api/modules/computations_adapters#programreply), \{ `state`: `"calls"` }> #### Parameters | Name | Type | | :- | :- | | `parallel` | [`ParallelState`](https://docs.bijection.com/api/modules/computations_adapters#parallelstate) | | `answers` | [`Answer`](https://docs.bijection.com/api/modules/computations_adapters#answer)\[] | | `stack` | [`Activation`](https://docs.bijection.com/api/modules/computations_adapters#activation)\[] | #### Returns \{ `state`: `"complete"` ; `value`: [`Value`](https://docs.bijection.com/api/modules/values#value)\[] } | \{ `state`: `"failed"` ; `failures`: \{ `key`: `string` ; `name`: `string` ; `message`: `string` }\[] } | `Extract`\<[`ProgramReply`](https://docs.bijection.com/api/modules/computations_adapters#programreply), \{ `state`: `"calls"` }> *** ### conform ▸ `Private` **conform**(`machine`, `side`, `value`): `void` #### Parameters | Name | Type | | :- | :- | | `machine` | [`DurableMachine`](https://docs.bijection.com/api/modules/computations_adapters#durablemachine) | | `side` | `"input"` \| `"output"` | | `value` | `unknown` | #### Returns `void` *** ### fatal ▸ `Private` **fatal**(`message`): `never` #### Parameters | Name | Type | | :- | :- | | `message` | `string` | #### Returns `never` *** ### issue ▸ `Private` **issue**(`issued`): `object` #### Parameters | Name | Type | | :- | :- | | `issued` | [`Issued`](https://docs.bijection.com/api/modules/computations_adapters#issued) | #### Returns `object` *** ### instruction ▸ `Private` **instruction**(`step`): `any` #### Parameters | Name | Type | | :- | :- | | `step` | [`ExecutionInstruction`](https://docs.bijection.com/api/modules/scenarios#executioninstruction) | #### Returns `any` *** ### buildStep ▸ `Private` **buildStep**(`append`): [`ExecutionInstruction`](https://docs.bijection.com/api/modules/scenarios#executioninstruction) #### Parameters | Name | Type | | :- | :- | | `append` | (`s`: `ScenarioInstructions`) => `void` | #### Returns [`ExecutionInstruction`](https://docs.bijection.com/api/modules/scenarios#executioninstruction) *** ### build ▸ `Private` **build**(`append`): `any` #### Parameters | Name | Type | | :- | :- | | `append` | (`s`: `ScenarioInstructions`) => `void` | #### Returns `any` *** ### nextId ▸ `Private` **nextId**(): `string` #### Returns `string` *** ### operationRequest ▸ `Private` **operationRequest**\<`T`>(`step`): [`ProcedureRequest`](https://docs.bijection.com/api/modules/scenarios#procedurerequest)\<`T`> #### Type parameters | Name | | :- | | `T` | #### Parameters | Name | Type | | :- | :- | | `step` | `Extract`\<[`ExecutionInstruction`](https://docs.bijection.com/api/modules/scenarios#executioninstruction), \{ `kind`: `"operation"` }> | #### Returns [`ProcedureRequest`](https://docs.bijection.com/api/modules/scenarios#procedurerequest)\<`T`> *** ### context ▸ **context**(`prefix`): [`ProcedureContext`](https://docs.bijection.com/api/modules/scenarios#procedurecontext) #### Parameters | Name | Type | | :- | :- | | `prefix` | `string` | #### Returns [`ProcedureContext`](https://docs.bijection.com/api/modules/scenarios#procedurecontext) *** ### deliver ▸ `Private` **deliver**(`step`, `value`): `unknown` #### Parameters | Name | Type | | :- | :- | | `step` | `string` | | `value` | [`Value`](https://docs.bijection.com/api/modules/values#value) | #### Returns `unknown` *** ### encode ▸ `Private` **encode**(`stack`, `reaction?`, `parallel?`): `Object` #### Parameters | Name | Type | | :- | :- | | `stack` | [`Activation`](https://docs.bijection.com/api/modules/computations_adapters#activation)\[] | | `reaction?` | [`Reaction`](https://docs.bijection.com/api/modules/computations_adapters#reaction) | | `parallel?` | [`ParallelState`](https://docs.bijection.com/api/modules/computations_adapters#parallelstate) | #### Returns `Object` | Name | Type | | :- | :- | | `frame` | `string` | | `references` | `string`\[] | *** ### procedurePath ▸ `Private` **procedurePath**(`value`): \{ `path`: `string`\[] ; `id`: `string` } | `undefined` #### Parameters | Name | Type | | :- | :- | | `value` | `object` | #### Returns \{ `path`: `string`\[] ; `id`: `string` } | `undefined` *** ### binding ▸ `Private` **binding**(`value`): `string` | `undefined` #### Parameters | Name | Type | | :- | :- | | `value` | `object` | #### Returns `string` | `undefined` *** ### reference ▸ `Private` **reference**(`value`, `checked?`): \{ `step`: `string` ; `path`: `string`\[] } | `undefined` #### Parameters | Name | Type | | :- | :- | | `value` | `object` | | `checked?` | `Map`\<[`Value`](https://docs.bijection.com/api/modules/values#value), `boolean`> | #### Returns \{ `step`: `string` ; `path`: `string`\[] } | `undefined` *** ### decode ▸ `Private` **decode**(`text`, `program`): `Object` #### Parameters | Name | Type | | :- | :- | | `text` | `string` | | `program` | [`DurableMachine`](https://docs.bijection.com/api/modules/computations_adapters#durablemachine) | #### Returns `Object` | Name | Type | | :- | :- | | `stack` | [`Activation`](https://docs.bijection.com/api/modules/computations_adapters#activation)\[] | | `reaction` | [`Reaction`](https://docs.bijection.com/api/modules/computations_adapters#reaction) \| `undefined` | | `parallel` | [`ParallelState`](https://docs.bijection.com/api/modules/computations_adapters#parallelstate) \| `undefined` | *** ### reactionStep ▸ `Private` **reactionStep**(`reaction`): `string` #### Parameters | Name | Type | | :- | :- | | `reaction` | [`Reaction`](https://docs.bijection.com/api/modules/computations_adapters#reaction) | #### Returns `string` *** ### heldCalls ▸ `Private` **heldCalls**(`value`): [`ScenarioHeldCall`](https://docs.bijection.com/api/modules/computations_adapters#scenarioheldcall)\[] #### Parameters | Name | Type | | :- | :- | | `value` | [`Value`](https://docs.bijection.com/api/modules/values#value) | #### Returns [`ScenarioHeldCall`](https://docs.bijection.com/api/modules/computations_adapters#scenarioheldcall)\[] *** ### nextReaction ▸ `Private` **nextReaction**(`reaction`, `calls`): [`Reaction`](https://docs.bijection.com/api/modules/computations_adapters#reaction) | `undefined` #### Parameters | Name | Type | | :- | :- | | `reaction` | [`Reaction`](https://docs.bijection.com/api/modules/computations_adapters#reaction) | | `calls` | [`ScenarioHeldCall`](https://docs.bijection.com/api/modules/computations_adapters#scenarioheldcall)\[] \| `undefined` | #### Returns [`Reaction`](https://docs.bijection.com/api/modules/computations_adapters#reaction) | `undefined` *** ### callStages ▸ `Private` **callStages**(`held`): [`ResponseStage`](https://docs.bijection.com/api/modules/computations_adapters#responsestage)\[] #### Parameters | Name | Type | | :- | :- | | `held` | [`ScenarioHeldCall`](https://docs.bijection.com/api/modules/computations_adapters#scenarioheldcall) | #### Returns [`ResponseStage`](https://docs.bijection.com/api/modules/computations_adapters#responsestage)\[] *** ### referencedValue ▸ `Private` **referencedValue**(`step`): [`Value`](https://docs.bijection.com/api/modules/values#value) #### Parameters | Name | Type | | :- | :- | | `step` | `string` | #### Returns [`Value`](https://docs.bijection.com/api/modules/values#value) *** ### responseStep ▸ `Private` **responseStep**(`reaction`): [`ExecutionInstruction`](https://docs.bijection.com/api/modules/scenarios#executioninstruction) #### Parameters | Name | Type | | :- | :- | | `reaction` | [`Reaction`](https://docs.bijection.com/api/modules/computations_adapters#reaction) | #### Returns [`ExecutionInstruction`](https://docs.bijection.com/api/modules/scenarios#executioninstruction) This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.