abstract syntax

Http://www.cnblogs.com/Ninputer/archive/2011/06/07/2074632.html In the first article of this series, I would like to give an overview of the Compiler Construction and help you understand the purpose of each component in the compiler. I think you

Why should we set up compilation principles for university courses? This course focuses on the Compiler Principles and technical issues, and seems to be irrelevant to the basic field of computer science. However, the compilation principle has always

What is Javac? Javac is a compiler that can speak a language specification into another language specification. such as c,c++ is the source code directly compiled into the target machine code, the target machine code is directly executed by the

Why should we set up compilation principles for university courses? This course focuses on the Compiler Principles and technical issues, and seems to be irrelevant to the basic field of computer science. However, the compilation principle has always

1. PrefaceThis is an experiment on compilation principles. It is the most difficult experiment that has been done since I went to college.Basic knowledge used in the experiment: C language, data structure, and assembly (simple understanding

  LargeWhy should we set up compilation principles for the course? This course focuses on the Compiler Principles and technical issues, and seems to be irrelevant to the basic field of computer science. However, the compilation principle has always

1. PrefaceThis is an experiment on compilation principles. It is the most difficult experiment that has been done since I went to college. Basic knowledge used in the experiment: C language, data structure, and assembly (simple understanding

Why do college courses offer the principle of compiling? This course focuses on the compiler aspects of the production principle and technical problems, it seems that the basic field of computer is not close, but the compilation principle has been

Mode motiveIf a particular type of problem occurs in the system at a very high frequency, consider describing an instance of the problem as a sentence in a language, so you can build an interpreter that solves these problems by interpreting these

Interpreter Mode Overview Given a language, it defines a representation of its syntax and an interpreter that uses this representation to interpret sentences in the language. Applicability When a language needs to be interpreted and executed,

See Horkeychen wrote the article "[WebKit] javascriptcore Analysis--Basic article (c) from script code to JIT compiled code implementation", written very well, deeply inspired. I would like to add some details such as how bytecode is generated, and

The interpreter pattern (interpreter), given a language, defines a representation of its grammar, and defines an interpreter that uses the representation to interpret a sentence in a language. The interpreter pattern needs to address that if a

Transferred from: http://tech.meituan.com/hive-sql-to-mapreduce.html (technical team) Hive is a data warehouse system based on Hadoop, which is widely used in major companies. The U.S. mission Data Warehouse is also based on Hive, performing nearly

In-depth understanding of webkit kernel Series 2: Deep parsing of JavaScript Engine, webkitjavascript The article [WebKit] JavaScriptCore parsing-basics (iii) from script code to JIT compiled code implementation written by HorkeyChen is well written

First, a primer In fact, there is no good example to introduce the interpreter pattern, because it describes how to form a simple language interpreter, the main application in the use of object-oriented language development compiler; In practical

Code compilation is done by the Javac compiler, as shown in Figure 1 below: Figure 1 Javac is a compiler that translates a language specification into another language specification, usually compilers translate language specifications that are

1.php is an analytic high-level language, Zend kernel using C language implementation, there is a main function, PHP script is input, kernel processing output results, the kernel translates php script into C program to recognize the opcode is PHP

Recently do program analysis, need to parse Java source code, so went to see the abstract Syntax tree (AST, Chinese abstract syntax trees). A bit helpless is, online information on this aspect than I imagined less, may be involved in the bottom of

In the execution of hive statements, it is inevitable to be curious about the implementation of hive, through the explain can see the hive transformation of the abstract syntax tree and operation descriptor hive> explain extended select SUM (shopid)

"Digestion of type names" is the digestion of types. The type name is represented by the TypeRef object, and the type is represented by the types object. The digestion of a type name is the conversion of a TypeRef object to a type object.The