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package Compiler;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
import java.nio.file.Paths;
import java.nio.file.Path;
import java.nio.file.Files;
public class ExecuteC {
Path buildToDir;
String filename;
public void compileAndExecuteC(List<String> code, String outPathStr, boolean executeAfter, boolean leaveCFile) {
Path outPath = Path.of(outPathStr);
int numElements = outPath.getNameCount();
filename = outPath.getName(numElements - 1).toString();
if (numElements == 1) {
buildToDir = Paths.get("build");
} else {
buildToDir = outPath.subpath(0, numElements - 1);
}
try {
Files.createDirectories(buildToDir);
} catch (IOException e) {
e.printStackTrace();
}
File cProgram = writeProgram(code);
if (!compileC()) {
if (executeAfter) {
String output = runProgram();
System.out.println(output);
}
} else {
Language.displayError(0, "Runtime Error");
}
if (!leaveCFile) {
cProgram.delete();
}
}
public void compileAndExecuteC(List<String> code) {
compileAndExecuteC(code, "main", true, true);
}
public File writeProgram(List<String> codeLines){
BufferedWriter output = null;
File file = null;
try {
file = Paths.get(buildToDir.toString(), String.format("%s.c", filename)).toFile();
output = new BufferedWriter(new FileWriter(file));
for(String line:codeLines){
output.write(line+"\n");
}
output.close();
} catch ( IOException e ) {
e.printStackTrace();
}
return file;
}
public Boolean compileC(){
try{
Process p;
// -lm to links maths library that is not included by default
if (System.getProperty("os.name").equals("Linux")) {
p = Runtime.getRuntime().exec(String.format(
"gcc %s/%s.c -o %s/%s -lm",
buildToDir.toString(), filename, buildToDir.toString(), filename
));
} else {
p = Runtime.getRuntime().exec(String.format(
"cmd /C gcc %s -o %s -lm",
Paths.get(buildToDir.toString(), String.format("%s.c", filename)).toString(),
Paths.get(buildToDir.toString(), String.format("%s.exe", filename)).toString()
));
}
BufferedReader stdError = new BufferedReader(new
InputStreamReader(p.getErrorStream()));
boolean error=false;
while ((stdError.readLine()) != null) {
error=true;
}
return error;
} catch (IOException e){
e.printStackTrace();
}
return false;
}
public String runProgram(){
try{
ProcessBuilder probuilder;
if (System.getProperty("os.name").equals("Linux")) {
String[] command = {"sh", "-c", Paths.get(buildToDir.toString(), filename).toString()};
probuilder = new ProcessBuilder(command);
} else {
String[] command = {"cmd", "/C", Paths.get(buildToDir.toString(), String.format("%s.exe", filename)).toString()};
probuilder = new ProcessBuilder(command);
}
Process p = probuilder.start();
BufferedReader stdInput = new BufferedReader(new
InputStreamReader(p.getInputStream()));
String s = null;
String output="";
while ((s = stdInput.readLine()) != null) {
output+=s+"\n";
}
return output;
} catch (IOException e){
e.printStackTrace();
}
System.out.println();
return null;
}
public static void main(String[] args) {
System.out.println("ExecuteC class testing");
}
}
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