Asama 3.3 — Report undefined variable errors using SymbolTable #46

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saqut · 2026-05-26T19:52:15+03:00

saqut commented

2026-05-26 19:52:15 +03:00

Goal: When a variable is used before definition, report a clear error with location.

Files to modify:

src/symbol/symbol_collector.hpp
src/core/diagnostic.hpp (new)

Requirements:

During symbol collection, when an identifier reference has no resolve(), emit diagnostic.
Diagnostic includes: error level, SourceLocation, message, optional hint.
Suggest close matches (Levenshtein distance < 3).
Support multiple errors (dont stop at first).

Success criteria:

int main() { return x; } reports Error: x is not defined at line 1 column 19.
Typos suggest close matches.

**Goal:** When a variable is used before definition, report a clear error with location. **Files to modify:** - src/symbol/symbol_collector.hpp - src/core/diagnostic.hpp (new) **Requirements:** - During symbol collection, when an identifier reference has no resolve(), emit diagnostic. - Diagnostic includes: error level, SourceLocation, message, optional hint. - Suggest close matches (Levenshtein distance < 3). - Support multiple errors (dont stop at first). **Success criteria:** - int main() { return x; } reports Error: x is not defined at line 1 column 19. - Typos suggest close matches.

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Reference: saqut/saqut-compiler#46