Function augmentHostWithReplacements

packages/ngtools/webpack/src/ivy/host.ts:193–220

(
  host: ts.CompilerHost,
  replacements: Record<string, string>,
  moduleResolutionCache?: ts.ModuleResolutionCache,
)

}

export function augmentHostWithReplacements(
  host: ts.CompilerHost,
  replacements: Record<string, string>,
  moduleResolutionCache?: ts.ModuleResolutionCache,
): void {
  if (Object.keys(replacements).length === 0) {
    return;
  }

  const normalizedReplacements: Record<string, string> = {};
  for (const [key, value] of Object.entries(replacements)) {
    normalizedReplacements[normalizePath(key)] = normalizePath(value);
  }

  const tryReplace = (resolvedModule: ts.ResolvedModule | undefined) => {
    const replacement = resolvedModule && normalizedReplacements[resolvedModule.resolvedFileName];
    if (replacement) {
      return {
        resolvedFileName: replacement,
        isExternalLibraryImport: /[/\\]node_modules[/\\]/.test(replacement),
      };
    } else {
      return resolvedModule;
    }
  };

  augmentResolveModuleNames(host, tryReplace, moduleResolutionCache);
}

export function augmentHostWithSubstitutions(
  host: ts.CompilerHost,