ts-declaration-location

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Installation

# Install with npm
npm install -D ts-declaration-location

# Install with pnpm
pnpm add -D ts-declaration-location

# Install with yarn
yarn add -D ts-declaration-location

Usage Example

import typeMatchesSpecifier from "ts-declaration-location";
import type ts from "typescript";

function isTypeFromSomePackage(program: ts.Program, type: ts.Type) {
  const specifier = {
    from: "package",
    package: "some-package"
  };

  return typeMatchesSpecifier(program, specifier, type);
}

function isTypeFromSomeFile(program: ts.Program, type: ts.Type) {
  const specifier = {
    from: "file",
    path: "src/**/some.ts"
  };

  return typeMatchesSpecifier(program, specifier, type);
}

function isTypeFromTSLib(program: ts.Program, type: ts.Type) {
  const specifier = {
    from: "lib",
  };

  return typeMatchesSpecifier(program, specifier, type);
}