Merge pull request github#14552 from github/criemen/bazel-js

Javascript extractor: Bazel-based build

Author: criemen

javascript/extractor/BUILD.bazel

@@ -0,0 +1,18 @@
+load("@//:common.bzl", "codeql_java_project")
+
+codeql_java_project(
+    name = "extractor",
+    deps = [
+        "@//extractor",
+        "@//resources/lib/java:commons-compress",
+        "@//resources/lib/java:gson",
+        "@//resources/lib/java:jericho-html",
+        "@//resources/lib/java:slf4j-api",
+        "@//resources/lib/java:snakeyaml",
+        "@//resources/lib/java/DO_NOT_DISTRIBUTE:junit",
+        "@//third_party:jackson",
+        "@//third_party:logback",
+        "@//util-java7",
+        "@//util-java8",
+    ],
+)

javascript/extractor/src/com/semmle/js/parser/JSONParser.java

@@ -79,7 +79,7 @@ private char next() throws ParseError {
   }
 
   private char peek() {
-    return offset < length ? src.charAt(offset) : (char) -1;
+    return offset < length ? src.charAt(offset) : Character.MAX_VALUE;
   }
 
   private JSONValue readValue() throws ParseError {
@@ -356,7 +356,7 @@ private void skipLineComment() throws ParseError {
     char c;
     next();
     next();
-    while ((c = peek()) != '\r' && c != '\n' && c != -1) next();
+    while ((c = peek()) != '\r' && c != '\n' && c != Character.MAX_VALUE) next();
   }
 
   /** Skips the block comment starting at the current position. */
@@ -367,7 +367,7 @@ private void skipBlockComment() throws ParseError {
     next();
     do {
       c = peek();
-      if (c < 0) raise("Unterminated comment.");
+      if (c == Character.MAX_VALUE) raise("Unterminated comment");
       next();
       if (c == '*' && peek() == '/') {
         next();