feat: upgrade antlr4 to 4.12.0 (#88)

build/antlr4.js

@@ -1,7 +1,8 @@
 const path = require('path');
 const exec = require('child_process').exec;
+const argv = require('yargs-parser')(process.argv.slice(2))
 
-const antlr4 = path.resolve(__dirname, 'antlr-4.8-complete.jar');
+const antlr4 = path.resolve(__dirname, './antlr-4.12.0-complete.jar');
 const grammars = path.resolve(__dirname, '../src/grammar');
 const output = path.resolve(__dirname, '../src/lib');
 
@@ -14,16 +15,16 @@ const entry = [
     'flinksql',
 ];
 
-entry.forEach((language) => {
+function compile(language) {
     const cmd = `
         java -jar ${antlr4}
-        -Dlanguage=JavaScript 
+        -Dlanguage=TypeScript 
         -visitor
         -listener
         -o ${output}/${language}
         ${grammars}/${language}/*.g4 
     `.replace(/\n/g, '');
-    console.log('cmd:', cmd);
+    console.info('Executing:', cmd);
     exec(cmd, (err) => {
         if (err) {
             console.error('Antlr4 build error: ' + language, err);
@@ -31,5 +32,20 @@ entry.forEach((language) => {
             console.log(`Build ${language} success.`);
         }
     });
-});
+}
+
+if (argv.all) { // build all: yarn antlr4 --all
+    entry.forEach((language) => {
+        compile(language);
+    });
+} else if (argv.lang) {// build single: yarn antlr4 --lang=generic
+    const supportedLanguage = entry.find((language) => language === argv.lang);
+    if (supportedLanguage) {
+        compile(argv.lang);
+    } else {
+        console.error('Unsupported language: ' + argv.lang);
+    }
+} else {
+    console.error('Please to specify the language, just like: yarn antlr4 --lang flinksql');
+}