Clojure Futures
summary
Clojure compiles directly to JVM bytecode and currently avoids invokeDynamic absence, using static var boxes and class initializers; experiments show replacing those with method handles and constantdynamic can delay heavy class-init work and shrink startup. Compilation emits aggressive local variable clearing to avoid GC retention. Protocols use interface + two-level lookup with an inline cache; direct linking speeds core libraries but prevents reloads (direct linking trade-off). Spec supplies validation, conformance and generators; core.async uses macro-based shredding that Loom could replace.
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chapters (12)
- 0:00Introduction to Clojure
- 1:33Data-Driven Programming
- 4:00Clojure Spec for Data
- 9:06Compilation to Bytecode
- 14:24Function Invocation Internals
- 20:20Dynamic Call Optimization
- 22:12Protocols and Polymorphism
- 26:30Immutable Data Structures
- 28:51Namespaces and Loading
- 30:26Platform Compatibility
- 34:09Optimizing Startup Time
- 38:01Future Trends in Clojure
