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Language & Communication

Why does a syntax error in a compiler's parsing phase cause cascading errors during code execution?

A)Lexical analysis fails completely downstream
B)Parse tree construction becomes incomplete
C)Semantic analysis repairs flawed structures
D)Code optimization bypasses the problem

💡 Explanation

A syntax error prevents the creation of a complete parse tree, a hierarchical representation of the code's structure. Because the parse tree is incomplete, further stages like semantic analysis and code generation cannot proceed correctly, therefore cascading errors appear. This happens rather than lexical analysis failure, semantic repair, or optimization bypass.

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