Package dev.zemco.codegame.compilation

Class CodeProgramCompiler

java.lang.Object

dev.zemco.codegame.compilation.CodeProgramCompiler

All Implemented Interfaces:

IProgramCompiler

public class CodeProgramCompiler
extends Object
implements IProgramCompiler

Implementation of a compiler, which compiles source code into an executable program using the CodeGame syntax. Instructions are parsed using provided instruction parser and the final program is built using provided program builder factory.

CodeGame syntax includes following features:

• every instruction is exactly one line long
• every jump label is exactly one line long
• jump labels are prefixed using '>' and can contain any non-whitespace character
• comments are prefixed using ';' and end at the end of the line
• comments are completely ignored during compilation and may be placed behind instructions or jump labels
• black lines / lines containing only whitespace/comments are completely ignored
• duplicate jump labels are not allowed

Author:

Erik Zemčík

Constructor Summary

Constructors

Constructor	Description
CodeProgramCompiler(IInstructionParser instructionParser, IProgramBuilderFactory programBuilderFactory)	Creates an instance of CodeProgramCompiler.

Method Summary

Modifier and Type	Method	Description
Program	compileProgram(String sourceCode)	Compiles given source code into an executable program.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CodeProgramCompiler

public CodeProgramCompiler(IInstructionParser instructionParser,
 IProgramBuilderFactory programBuilderFactory)

Creates an instance of CodeProgramCompiler.

Parameters:

instructionParser - instruction parser for parsing instruction

programBuilderFactory - factory for building output program

Throws:

IllegalArgumentException - if instructionParser is null or if programBuilderFactory is null

Method Details

compileProgram

public Program compileProgram(String sourceCode)
                       throws InvalidSyntaxException

Description copied from interface: IProgramCompiler

Compiles given source code into an executable program.

Specified by:

compileProgram in interface IProgramCompiler

Parameters:

sourceCode - source code of the program

Returns:

executable program

Throws:

InvalidSyntaxException - if sourceCode contains invalid syntax to the implementation