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Instance set output
Leon Starr edited this page Nov 6, 2023
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You can output one or more instance references. For example, for some class method typed Aircraft, where Aircraft is a class, you might see this at the bottom of the method activity:
// Returns all lowest flying aircraft instance references
=>> Aircraft( ^-Altitude )
Copyright 2020, 2021, 2022, 2023, 2025 © Leon Starr under MIT Open Source License
- Why they are problematic
- Instance attribute creation values
- Boolean values
- Special values
- Enumerated values
- Action block
- Statement
- Single line action
- Multiple dependent actions on a single line
- An action spread across multiple lines
- A conditional group of single line actions
- Comments
- Finding instances
- Attribute access
- Creation and deletion
- Subclass migration
- Creating a table from a class
- Creating a table with a definition
- Converting a table into a class
- Set operations on tables
- Set comparisons on tables
- Join
- Rename
- Extend
- Aggregation
- Rank
- Image
- Input values
- Signatures and name doubling
- Output values
- Execution order
- Sequential execution
- Conditional execution
- Signals
- Scrall has no for_each action
- Iteration