## Token Defaults Generator Script that generates component theme data defaults based on token data. ## Usage Run this program from the root of the git repository: ``` dart dev/tools/gen_defaults/bin/gen_defaults.dart [-v] ``` This updates `generated/used_tokens.csv` and the various component theme files. ## Templates There is a template file for every component that needs defaults from the token database. These templates are implemented as subclasses of `TokenTemplate`. This base class provides some utilities and a structure for adding a new block of generated code to the bottom of a given file. Templates need to override the `generate` method to provide the generated code block as a string. See `lib/fab_template.dart` for an example that generates defaults for the Floating Action Button. ## Tokens Tokens are stored in JSON files in `data/`, and are sourced from an internal Google database. `template.dart` should provide nearly all useful token resolvers (e.g. `color`, `shape`, etc.). For special cases in which one shouldn't be defined, use `getToken` to get the raw token value. The script, through the various revolvers and `getToken`, validates tokens, keeps track of which tokens are used, and generates `generated/used_tokens.csv`.