What is an abstract syntax tree?

abstract tree syntax (AST) is a syntactic structure created to represent the functions that occur within the program. It is based on the source code of programming. The abstract syntax tree usually hierarchical in the design begins from the basic functions and streams down to display more connected functions and code within each basic function. The use of this tree facilitates programmers visualization of code without viewing the source code itself, which is much longer, and can reveal shortcomings or weaknesses in the code. The tree is called abstract, not because it is difficult to understand or has an abstract shape, but because it does not include coding syntax, such as feet and other symbols that inevitably appear in code. Looking at the source code, it can be difficult to determine whether each statement, etc. has been fully met and if all functions were created correctly. Abstract Tree Syntax gives the programmer a quick way to look at programming to see every submínku and how it generally refers to the program.

The tree is made in a hierarchical way. Above is one of the main claims, and the branches are flowing down from this claim to show what the conditions meet. This continues and shows other features and conditions for the whole program. Variables in programming also often appear. Most programming languages ​​have the ability to generate an abstract syntax tree.

If the programmer wants to see these additional symbols, the concrete tree of syntax is often used. These trees are similar to an abstract variety, only they go to details with all symbols. This tree is better to look at the missing pieces of symbols or code, while an abstract tree is better to check the function and variable program.