Asama 3.4 — Report duplicate definition errors #48

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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 symbol is defined twice in the same scope, report an error.

Files to modify:

src/symbol/symbol_table.hpp
src/symbol/symbol_collector.hpp

Requirements:

SymbolTable::define() returns false on duplicate; collector emits diagnostic.
Error message includes location of previous definition.
Works for variables, functions, structs.
Shadowing in nested scopes is allowed (not an error).

Success criteria:

Two int main() definitions produce an error.
Two int x in the same block produce an error.

**Goal:** When a symbol is defined twice in the same scope, report an error. **Files to modify:** - src/symbol/symbol_table.hpp - src/symbol/symbol_collector.hpp **Requirements:** - SymbolTable::define() returns false on duplicate; collector emits diagnostic. - Error message includes location of previous definition. - Works for variables, functions, structs. - Shadowing in nested scopes is allowed (not an error). **Success criteria:** - Two int main() definitions produce an error. - Two int x in the same block produce an error.

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Reference: saqut/saqut-compiler#48