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Dart Macros and Focus
Reacting to Google's decision to cancel Dart's "macros" feature
Macros was planned as a new language feature to make it easier for Flutter and Dart developers to express ideas requiring repetitive code (for example data serialization) from simple syntax. Dart took a particularly ambitious flavor that ultimately proved unwieldy to implement to the Google team’s satisfaction. They’ve realized they can’t make macros pass their performance goals (without other even larger changes to the ecosystem or language).
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