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💻 A naïve compilation principal course design.

License: Do What The F*ck You Want To Public License

Java 84.14% ANTLR 15.86%

compiler front-end cminus course-project whu

cminus's Introduction

CMinus

Compiler front-end of CMinus, which is the subset of C language

Usage

See my porject’s requirements for more details.

Build

You need the meet the following prerequisites before the building:

JDK: Java is selected as the target programming language.
Maven: this project use the maven as the build tool.
Antlr: I choose anltr to help us analysis cminus’s syntax.

Firstly, you need to download the project.

git clone [email protected]:Sh-Zh-7/CMinus.git

Enter the project’s directory and generate the extra source files with antlr. Since these files can be auto generated, I didn’t put them in my repo.

antlr4 -o src/main/java/io/github/cminus -package io.github.cminus -Dlanguage=Java -listener -encoding utf-8 -visitor -lib src/main/resources src/main/resources/CMinus.g4

Finally you can use maven to get our package and then execute it. Alias to executing jar is strongly recommended.

mvn package -Dmaven.test.skip=true
alias cminus='java -jar target/cminus-1.0-SNAPSHOT-jar-with-dependencies.jar'

Now you can use cminus to interpret the cminus file (with .cm suffix)！

Try to execute the following command and watch its output!

cminus src/test/resources/examples/example2.cm

Quick Start

I carefully prepare the Github issue-bot for you to test my compiler.

Check this page to see how you can let the issue bot understand your CMinus code.

Note there is also a issue template to guide you how to write the correct issue to test.

The effects are shown below:

License

WTF License

If you like my project, feel free to give my repo a star! ⭐ ⬆️.

cminus's People

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cminus's Issues

[feature_request] support different forms of floating-point numbers.

We need to identify other forms of floating-point numbers as well.
Like .5E03, 43.e-4, -1.2e3 ,01.23E12 .
We need to specify the error as well, like 1.05e.

[feature_request] support different form of integers

Our program should identify the following form of numbers:

octal numbers: 01, 0123,.etc.
hexadecimal numbers: 0x9, 0xff,.etc

And we need to specify the possible errors like 09, 0xzz and so on.

[test] CMinus code example1.

int main()
{
    int i = 1;
    int j = ~i;
}

[feature_request] support multi-line comment.

Identify block comment like /*...*/.
Report error when the pair is not complete.

[test] CMinus code example2.

int main()
{
    float a[10][2];
    int i;
    a[5, 3] = 1.5;
    if (a[1][2] == 0) i = 1 else i = 2;
}

[test] CMinus code example3.

int inc()
{
    int i;
    i = i + 1;
}

[test] CMinus code test

int a[1][2][3];
int a;
int b;

struct A {
	int a;
	struct SB{} k;
    struct SB c;
};
struct B {
	int a;
	struct B c;
};
int cnm(){
    return 0;
}
int func(int a,int b){
    return 0;
}
int nmsl(int a[1],int b);
int nmsl(int a,int a);
int nmsl(int a[1],int b){
    int c[1][2];
    int b;
    int d;
    struct A k;
    int e=k.c;
    int sb=nmsl(0,0);
    b=g;
    return 0;
}
struct B{
    struct B{} a;
};
int main(){
    return 0;
}