node library

Abstract Syntax Tree (AST) node definitions and LLVM IR generation for Balbismo.

This library defines the complete AST node hierarchy for the Balbismo programming language, along with LLVM Intermediate Representation (IR) code generation. Each AST node represents a construct in the Balbismo language and knows how to generate the corresponding LLVM IR code.

The AST nodes are organized into several categories:

• Expressions: Literals, identifiers, binary/unary operations, function calls
• Statements: Variable declarations, assignments, control flow (if/while)
• Types: Type representations and casting operations
• I/O Operations: Print and scanf statements

Key features of this AST implementation:

• Type Safety: All nodes are strongly typed with compile-time type checking
• LLVM IR Generation: Each node generates optimized LLVM IR code
• Symbol Resolution: Integration with the symbol table for variable/function lookup
• Error Handling: Comprehensive error checking and meaningful error messages
• Memory Management: Proper stack allocation and pointer handling

The code generation process transforms high-level Balbismo constructs into low-level LLVM IR instructions that can be compiled to machine code by LLVM tools.