62 lines
1.8 KiB
Java
62 lines
1.8 KiB
Java
import abstractSyntaxTree.Class.FieldDecl;
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import abstractSyntaxTree.Class.MethodDecl;
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import abstractSyntaxTree.Class.RefType;
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import abstractSyntaxTree.Program;
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import gen.DecafLexer;
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import gen.DecafParser;
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import org.antlr.v4.runtime.CharStream;
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import org.antlr.v4.runtime.CharStreams;
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import org.antlr.v4.runtime.CommonTokenStream;
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import org.antlr.v4.runtime.Token;
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import org.antlr.v4.runtime.tree.ParseTree;
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import java.io.CharArrayReader;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.util.ArrayList;
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import java.util.List;
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public class Compiler {
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public static void main(String[] args) throws Exception{
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// get file
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// String filePath = "EmptyClass.java";
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// String content = new String(Files.readAllBytes(Paths.get(filePath)));
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// CharArrayReader charStream = new CharArrayReader(content.toCharArray());
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CharStream codeCharStream = CharStreams.fromString("class Example { int i; }");
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DecafLexer lexer = new DecafLexer(codeCharStream);
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CommonTokenStream tokens = new CommonTokenStream(lexer);
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System.out.println("--- print tokens ---");
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tokens.fill();
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List<Token> tokenList = tokens.getTokens();
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StringBuilder stringBuilder = new StringBuilder();
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for (Token token : tokenList) {
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stringBuilder.append(token.getText()).append(" ");
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}
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String readableTokens = stringBuilder.toString().trim();
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System.out.println(readableTokens);
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DecafParser parser = new DecafParser(tokens);
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ParseTree tree = parser.program();
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System.out.println("--- print tree ---");
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System.out.println(tree);
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Program abstractSyntaxTree = new Program(new ArrayList<>());
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abstractSyntaxTree.typeCheck();
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abstractSyntaxTree.codeGen();
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}
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}
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