diff options
Diffstat (limited to 'src')
3 files changed, 44 insertions, 0 deletions
diff --git a/src/data/composite/control-flow/exposeWhetherDependencyAvailable.js b/src/data/composite/control-flow/exposeWhetherDependencyAvailable.js new file mode 100644 index 00000000..a2fdd6b0 --- /dev/null +++ b/src/data/composite/control-flow/exposeWhetherDependencyAvailable.js @@ -0,0 +1,42 @@ +// Exposes true if a dependency is available, and false otherwise, +// or the reverse if the `negate` input is set true. +// +// See withResultOfAvailabilityCheck for {mode} options. + +import {input, templateCompositeFrom} from '#composite'; + +import inputAvailabilityCheckMode from './inputAvailabilityCheckMode.js'; +import withResultOfAvailabilityCheck from './withResultOfAvailabilityCheck.js'; + +export default templateCompositeFrom({ + annotation: `exposeWhetherDependencyAvailable`, + + compose: false, + + inputs: { + dependency: input({acceptsNull: true}), + + mode: inputAvailabilityCheckMode(), + + negate: input({type: 'boolean', defaultValue: false}), + }, + + steps: () => [ + withResultOfAvailabilityCheck({ + from: input('dependency'), + mode: input('mode'), + }), + + { + dependencies: ['#availability', input('negate')], + + compute: ({ + ['#availability']: availability, + [input('negate')]: negate, + }) => + (negate + ? !availability + : availability), + }, + ], +}); diff --git a/src/data/composite/control-flow/index.js b/src/data/composite/control-flow/index.js index 7fad88b2..6148d465 100644 --- a/src/data/composite/control-flow/index.js +++ b/src/data/composite/control-flow/index.js @@ -9,6 +9,7 @@ export {default as exposeConstant} from './exposeConstant.js'; export {default as exposeDependency} from './exposeDependency.js'; export {default as exposeDependencyOrContinue} from './exposeDependencyOrContinue.js'; export {default as exposeUpdateValueOrContinue} from './exposeUpdateValueOrContinue.js'; +export {default as exposeWhetherDependencyAvailable} from './exposeWhetherDependencyAvailable.js'; export {default as raiseOutputWithoutDependency} from './raiseOutputWithoutDependency.js'; export {default as raiseOutputWithoutUpdateValue} from './raiseOutputWithoutUpdateValue.js'; export {default as withResultOfAvailabilityCheck} from './withResultOfAvailabilityCheck.js'; diff --git a/src/data/composite/control-flow/withResultOfAvailabilityCheck.js b/src/data/composite/control-flow/withResultOfAvailabilityCheck.js index a6942014..1d90b324 100644 --- a/src/data/composite/control-flow/withResultOfAvailabilityCheck.js +++ b/src/data/composite/control-flow/withResultOfAvailabilityCheck.js @@ -17,6 +17,7 @@ // - exitWithoutUpdateValue // - exposeDependencyOrContinue // - exposeUpdateValueOrContinue +// - exposeWhetherDependencyAvailable // - raiseOutputWithoutDependency // - raiseOutputWithoutUpdateValue // |