Abstract Syntax Tree vs Parse Tree:
Factor
Abstract Syntax Tree
Parse Tree
Structure
An AST is composed of symbols, such as operators, identifiers, and keywords. These symbols are organized in a tree structure.
A parse tree is composed of tokens, such as terminal and non-terminal symbols. These tokens are organized in a tree structure.
Representation
An AST is represented using a standard tree structure, with each node representing a particular symbol or rule.
A parse tree is represented using a graph structure, with each node representing a particular token or rule.
Generation
An AST is generated by the compiler from the source code.
A parse tree is generated by the parser from the source code.
Usage
An AST is used to analyze the source code and optimize it for compilation.
A parse tree is used to check the syntactic correctness of the source code.
Expressiveness
An AST is more expressive than a parse tree, as it provides more information about the source code.
A parse tree is less expressive than an AST, as it only provides basic information about the source code.
Efficiency
An AST is more efficient than a parse tree, as it requires fewer operations to generate.
A parse tree is less efficient than an AST, as it requires more operations to generate.
Size
An AST is smaller than a parse tree, as it contains fewer symbols.
A parse tree is larger than an AST, as it contains more tokens.
Complexity
An AST is simpler than a parse tree, as it is generated from fewer operations.
A parse tree is more complex than an AST, as it is generated from more operations.
Comprehension
An AST is easier to comprehend than a parse tree, as it contains more information about the source code.
A parse tree is harder to comprehend than an AST, as it contains less information about the source code....
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