semver-dsl
v1.0.1
Published
Tiny internal DSL which allows invocation of different functionality depending on SemVer match.
Downloads
2,434,597
Readme
SemVer DSL
A simple internal DSL which allows you to invoke different functionality depending on version match. Used in codelyzer for keeping the code compatible across different versions of the Angular compiler.
Demo
$ npm i semver-dsl --save
import {SemVerDSL} from 'semver-dsl';
const base = () => {};
const elseIf1 = () => {};
const elseIf2 = () => {};
const else = () => console.log('I will be invoked!');
SemVerDSL('3.0.0')
.gt('3.2.1', base)
.elseIf.gt('3.0.1', elseIf1)
.elseIf.between('3.0.1', '3.1.8', elseIf2)
.else(else);
In the example above will be invoked else
.
API
SemDSL(version: string)
- factory which accepts a version and returns an object.gte(version: string, callback?: Function): ISemContextualDSL
- returns an object withelseIf
andelse
properties.lte(version: string, callback?: Function): ISemContextualDSL
- returns an object withelseIf
andelse
properties.gt(version: string, callback?: Function): ISemContextualDSL
- returns an object withelseIf
andelse
properties.lt(version: string, callback?: Function): ISemContextualDSL
- returns an object withelseIf
andelse
properties.eq(version: string, callback?: Function): ISemContextualDSL
- returns an object withelseIf
andelse
properties.neq(version: string, callback?: Function): ISemContextualDSL
- returns an object withelseIf
andelse
properties.between(v1: string, v2: string, callback?: Function): ISemContextualDSL
- returns an object withelseIf
properties.elseIf
- returns an object of typeISemVerDSL
bound to the previous predicate.else
- invokes given callback if all of the previous conditions have failed.
export interface ISemVerDSL {
gte(version: string, callback: Function): ISemContextualDSL;
lte(version: string, callback: Function): ISemContextualDSL;
gt(version: string, callback: Function): ISemContextualDSL;
lt(version: string, callback: Function): ISemContextualDSL;
eq(version: string, callback: Function): ISemContextualDSL;
neq(version: string, callback: Function): ISemContextualDSL;
between(v1: string, v2: string, callback: Function): ISemContextualDSL;
}
export interface ISemVerContextBoundDSL {
elseIf: ISemVerDSL;
else(callback: Function): void;
}
License
MIT