Created
January 29, 2023 17:50
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import org.antlr.v4.runtime.ANTLRInputStream; | |
import org.antlr.v4.runtime.CommonTokenStream; | |
import org.antlr.v4.runtime.ParserRuleContext; | |
import org.antlr.v4.runtime.Token; | |
import org.antlr.v4.runtime.tree.*; | |
import org.antlr.v4.runtime.*; | |
import java.io.FileInputStream; | |
import java.io.InputStream; | |
import org.antlr.v4.runtime.CharStreams; | |
public class ExtractInterfaceTool { | |
public static void main(String[] args) throws Exception { | |
String inputFile = null; | |
if ( args.length>0 ) inputFile = args[0]; | |
InputStream is = System.in; | |
if ( inputFile!=null ) { | |
is = new FileInputStream(inputFile); | |
} | |
CharStream input = CharStreams.fromStream(is); | |
// ANTLRInputStream input = new ANTLRInputStream(is); | |
JavaLexer lexer = new JavaLexer(input); | |
CommonTokenStream tokens = new CommonTokenStream(lexer); | |
JavaParser parser = new JavaParser(tokens); | |
ParseTree tree = parser.compilationUnit(); // parse | |
ParseTreeWalker walker = new ParseTreeWalker(); // create standard walker | |
ExtractInterfaceListener extractor = new ExtractInterfaceListener(parser); | |
walker.walk(extractor, tree); // initiate walk of tree with listener | |
} | |
} |
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