| 1 | """ |
| 2 | Simple calculator module for testing LSP features. |
| 3 | |
| 4 | Test these features: |
| 5 | - Diagnostics: See the intentional errors below |
| 6 | - Go to Definition: F12 on function calls |
| 7 | - Find References: Shift+F12 on function names |
| 8 | - Rename: F2 on any function/variable |
| 9 | - Code Actions: Ctrl+. on errors |
| 10 | - Document Symbols: Ctrl+Shift+O to see outline |
| 11 | - Formatting: Shift+Alt+F to format |
| 12 | """ |
| 13 | |
| 14 | |
| 15 | def add(x, y): |
| 16 | """Add two numbers together.""" |
| 17 | return x + y |
| 18 | |
| 19 | |
| 20 | def subtract(x, y): |
| 21 | """Subtract y from x.""" |
| 22 | return x - y |
| 23 | |
| 24 | |
| 25 | def multiply(x, y): |
| 26 | """Multiply two numbers.""" |
| 27 | return x * y |
| 28 | |
| 29 | |
| 30 | def divide(x, y): |
| 31 | """Divide x by y.""" |
| 32 | if y == 0: |
| 33 | raise ValueError("Cannot divide by zero") |
| 34 | return x / y |
| 35 | |
| 36 | |
| 37 | def calculate_total(items): |
| 38 | """Calculate total from a list of numbers.""" |
| 39 | total = 0 |
| 40 | for item in items: |
| 41 | total = total + item |
| 42 | return total |
| 43 | |
| 44 | |
| 45 | # Intentional error for diagnostics testing |
| 46 | def broken_function(): |
| 47 | """This function has an error - undefined variable.""" |
| 48 | result = add(5, 3) |
| 49 | print(f"Result: {reslt}") # ERROR: typo - should be 'result' |
| 50 | return reslt |
| 51 | |
| 52 | |
| 53 | # Another intentional error - missing import |
| 54 | def use_math(): |
| 55 | """Uses math module without importing it.""" |
| 56 | return math.sqrt(16) # ERROR: 'math' is not defined |
| 57 | |
| 58 | |
| 59 | # Test code |
| 60 | if __name__ == "__main__": |
| 61 | # These work fine |
| 62 | print(add(10, 5)) |
| 63 | print(subtract(10, 5)) |
| 64 | print(multiply(10, 5)) |
| 65 | print(divide(10, 5)) |
| 66 | |
| 67 | # This will show diagnostic errors |
| 68 | broken_function() |
| 69 | use_math() |