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readme.md |
"Nicht Haskel 2.0" Java Compiler
Realisation of a subset of the Java Standard Compiler in the course Compiler Construction of the 4th semester Computer Science at the Duale Hochschule Suttgart (Horb).
This project aims to provide a simplified version of the Java compiler, focusing on key language features and demonstrating the principles of compiler construction.
Realised Java syntax
- Data types:
int
,boolean
,char
- Access modifier:
public
,protected
,private
- Operators:
=
+
-
*
%
/
>
<
>=
<=
==
!=
!
&&
||
++
--
- Keywords:
class
,this
,while
,do
,if
,else
,for
,return
,new
,switch
,case
,break
,default
,:
- Statements:
if
...if else
...else
;while
... ;do
...while
;for
;switch
...case
... ;
- Comments:
- Single line:
// comment
- Multi-line:
/* comment */
- Single line:
- Further functions:
- All methods are overloadable
- High maintainability and expandability through implementation of the visitor pattern
- Logging Input and Outputs
- Error Handling in the Semantic Check
Project Structure
src/
└── main/
├── java/
│ ├── ast/ -> Defining the structure of the AST
│ ├── bytecode/ -> Generate Java bytecode
│ ├── main/ -> Running the compiler
│ ├── parser/
│ │ ├── astBuilder/ -> Builder creating the AST
│ │ ├── generated/ -> Antlr generated grammar
│ │ └── grammar/ -> Antlr grammar
│ ├── semantic/ -> Running the semantic check
│ └── visitor/ -> Visitor interface
└── resources/
test/
└── java/
│ ├── main/ -> MainTest, E2ETests, UtilityTests
│ ├── parser/ -> Performs tests on the parser
│ └── semantic/ -> Performs tests on the semantic check
└── resources/ -> Ressources for running the Tests
Class-Diagramm AST
Used Tools
- Maven 4.0
- Used for automating the build process and managing dependencies.
- ANTLR4 v.13.1
- Used to parse the input Java code into the Abstract Syntax Tree.
How to run the compiler
Download