IFF Language Support
Visual Studio Code extension for the IFF programming language — providing syntax highlighting, smart completions, and real-time diagnostics.
Features
Syntax Highlighting
Full syntax highlighting for all IFF language constructs:
- Keywords (
if, else, while, for, func, class, var, ...)
- String literals with single and double quotes
- String interpolation with
${}
- Numbers, booleans, and
null
- Line comments
// and block comments /* */
- All operators and punctuation
Auto Completion
As you type, the extension suggests:
- All language keywords
- Built-in constants (
true, false, null)
- Variables, functions, and classes declared anywhere in the current file
Snippets
Expand common constructs instantly:
| Type |
Expands to |
func |
Function declaration with body |
if |
If statement with condition |
while |
While loop |
for |
For-in loop |
class |
Class declaration |
Diagnostics
Real-time error and warning detection as you type:
- Missing semicolons — warns on lines that should end with
;
- Unclosed brackets — detects unmatched
(, [, {
- Unexpected closing brackets — flags
), ], } with no matching opener
- Undeclared identifiers — warns when a variable or function is used before being declared
File Extension
This extension activates on files with the .iff extension.
IFF Language
IFF is a custom programming language with a clean, expressive syntax. It supports:
- Variables (
var)
- Functions (
func)
- Classes with
self and super
- Control flow:
if/else, while, for/in, match/case
- String interpolation:
"Hello ${name}"
- Operators: arithmetic, bitwise, comparison, logical, ternary
break, continue, return- Single-line (
//) and block (/* */) comments
Requirements
No dependencies required. The extension works out of the box.
Release Notes
0.0.3
Initial release:
- Syntax highlighting
- Auto completion
- Snippet expansion
- Real-time diagnostics
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