Provides efficient matrix-like indexing for table1_blueprint objects using environment-based hash table lookup.
Details
The optimized implementation uses O(1) hash table lookup through R environments. Bounds checking is performed to ensure safe access.
Examples
bp <- Table1Blueprint(5, 3)
bp[1, 1] <- Cell(type = "content", content = "Variable")
cell <- bp[1, 1] # O(1) lookup
