Eiffel Language Support
This Visual Studio Code extension provides syntax highlighting and code snippets for Eiffel language development.
Once installed, files with the .e extension will automatically activate the Eiffel syntax highlighting and snippet
support.
Syntax Highlighting
The Eiffel language syntax is supported through a custom grammar definition. It highlights the following:
- Comments: Single-line comments start with
-- .
Keywords: Keywords such as class , feature , do , end , if , else , from , and more are highlighted.
- Variables: All variable names that follow standard Eiffel naming conventions are highlighted.
- Constants: Common constants like
True , False , Void , Result , and Current are included.
- String Literals: Double-quoted strings are highlighted, with escape sequences recognized within them.
- Numbers: Numeric constants are highlighted.
Modifiers: Keywords like
deferred , expanded , and storage modifiers are highlighted for better readability.
- Class Definitions: The extension provides recognition for class structures, including inheritance and class-level
declarations.
Code Snippets
This extension comes with predefined snippets to boost your productivity when writing Eiffel code. Here are some of the
snippets provided:
Assignment:
Create Statements: For object creation, you can use:
create {TYPE} writable.default_create
Classes: You can create class templates using the following snippets:
Class:
class CLASS_NAME
inherit
create
feature
invariant
end -- CLASS_NAME
Expanded Class:
expanded class CLASS_NAME
inherit
create
feature
invariant
end -- CLASS_NAME
Deferred Class:
deferred class CLASS_NAME
inherit
feature
invariant
end -- CLASS_NAME
Variable Declarations:
Conditions: Snippets for inspect and check statements are available to quickly scaffold conditional logic:
inspect
expression
when choice then
instruction
else
instruction
end
Assertions: Use the check snippet to verify assertions in your code:
check
assertion
end
Enjoy coding in Eiffel with enhanced productivity!
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