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feat(compiler): support increment and decrement operators (#36) - #47
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) - Add `\+\+|--` tokens to `Lexer.TOKEN_SPEC`. - Add `IncDec` AST node for prefix and postfix `++` and `--`. - Update `Parser.parse_unary`, `parse_postfix`, `parse_inline_post`, and `parse_stmt` to support prefix and postfix increment and decrement expressions and statements. - Generate AVR `INC` and `DEC` instructions in `CodeGenerator`, returning the new value in R16 for prefix and the old value in R16 for postfix. - Add comprehensive test coverage in `tests/test_compiler.py`. Closes #36
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\+\+|--tokens toLexer.TOKEN_SPEC.IncDecAST node for prefix and postfix++and--.Parser.parse_unary,parse_postfix,parse_inline_post, andparse_stmtto support prefix and postfix increment and decrement expressions and statements.INCandDECinstructions inCodeGenerator, returning the new value in R16 for prefix and the old value in R16 for postfix.tests/test_compiler.py.Closes #36