Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 9.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10 Scope of Variables 105 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 9.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10 Scope of Variables 105 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 11 Scope of Variables 111 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 11 Scope of Variables 111 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 11 Scope of Variables 111 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 11 Scope of Variables 111 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 11 Scope of Variables 111 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 11 Scope of Variables 111 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 11 Scope of Variables 111 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 10.6 Tasks (aka Coroutines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 11 Scope of Variables 111 fast • Designed for parallelism and distributed computation • Lightweight "green" threading (coroutines) • Unobtrusive yet powerful type system • Elegant and extensible conversions and promotions for Evaluation: Loops: while and for. • Exception Handling: try-catch, error and throw. • Tasks (aka Coroutines): yieldto. The first five control flow mechanisms are standard to high-level programming languages