JS: simplified parser exceptions

js/js.frontend/src/org/jetbrains/kotlin/js/resolve/diagnostics/JsCallChecker.kt

@@ -16,7 +16,7 @@
 
 package org.jetbrains.kotlin.resolve.diagnostics
 
-import com.google.gwt.dev.js.AbortParsingException
+import com.google.gwt.dev.js.parserExceptions.AbortParsingException
 import com.google.gwt.dev.js.rhino.*
 import com.google.gwt.dev.js.rhino.Utils.*
 import org.jetbrains.annotations.TestOnly

js/js.parser/src/com/google/gwt/dev/js/JsParser.java

@@ -18,6 +18,7 @@ package com.google.gwt.dev.js;
 import com.google.dart.compiler.backend.js.ast.*;
 import com.google.dart.compiler.backend.js.ast.JsLiteral.JsBooleanLiteral;
 import com.google.dart.compiler.common.SourceInfo;
+import com.google.gwt.dev.js.parserExceptions.JsParserException;
 import com.google.gwt.dev.js.rhino.*;
 import com.intellij.util.SmartList;
 import org.jetbrains.annotations.NotNull;
@@ -26,7 +27,6 @@ import org.jetbrains.annotations.Nullable;
 import java.io.IOException;
 import java.io.Reader;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.Stack;
 
@@ -86,7 +86,8 @@ public class JsParser {
     }
 
     private static JsParserException createParserException(String msg, Node offender) {
-        return new JsParserException(msg, offender.getLineno(), null, 0, SOURCE_NAME_STUB);
+        CodePosition position = new CodePosition(offender.getLineno(), 0);
+        return new JsParserException("Parser encountered internal error: " + msg, position);
     }
 
     private JsScope getScope() {

js/js.parser/src/com/google/gwt/dev/js/JsParserException.java

@@ -1,106 +0,0 @@
-/*
- * Copyright 2007 Google Inc.
- * 
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- * 
- * http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-package com.google.gwt.dev.js;
-
-/**
- * Indicates inability to parse JavaScript source.
- */
-public class JsParserException extends Exception {
-
-  /**
-   * Represents the location of a parser exception.
-   */
-  public static class SourceDetail {
-    private final String fileName;
-    private final int line;
-    private final int lineOffset;
-    private final String lineSource;
-
-    public SourceDetail(int line, String lineSource, int lineOffset,
-        String fileName) {
-      this.line = line;
-      this.lineSource = lineSource;
-      this.lineOffset = lineOffset;
-      this.fileName = fileName;
-    }
-
-    public String getFileName() {
-      return fileName;
-    }
-
-    public int getLine() {
-      return line;
-    }
-
-    public int getLineOffset() {
-      return lineOffset;
-    }
-
-    public String getLineSource() {
-      return lineSource;
-    }
-  }
-
-  private static String createMessageWithDetail(String msg,
-      SourceDetail sourceDetail) {
-    if (sourceDetail == null) {
-      return msg;
-    }
-    StringBuffer sb = new StringBuffer();
-    sb.append(sourceDetail.getFileName());
-    sb.append('(');
-    sb.append(sourceDetail.getLine());
-    sb.append(')');
-    sb.append(": ");
-    sb.append(msg);
-    if (sourceDetail.getLineSource() != null) {
-      sb.append("\n> ");
-      sb.append(sourceDetail.getLineSource());
-      sb.append("\n> ");
-      for (int i = 0, n = sourceDetail.getLineOffset(); i < n; ++i) {
-        sb.append('-');
-      }
-      sb.append('^');
-    }
-    return sb.toString();
-  }
-
-  private final SourceDetail sourceDetail;
-
-  public JsParserException(String msg) {
-    this(msg, null);
-  }
-
-  public JsParserException(String msg, int line, String lineSource,
-      int lineOffset, String fileName) {
-    this(msg, new SourceDetail(line, lineSource, lineOffset, fileName));
-  }
-
-  public JsParserException(String msg, SourceDetail sourceDetail) {
-    super(createMessageWithDetail(msg, sourceDetail));
-    this.sourceDetail = sourceDetail;
-  }
-
-  /**
-   * Provides additional source detail in some cases.
-   * 
-   * @return additional detail regarding the error, or <code>null</code> if no
-   *         additional detail is available
-   */
-  public SourceDetail getSourceDetail() {
-    return sourceDetail;
-  }
-}

js/js.parser/src/com/google/gwt/dev/js/parserExceptions/parserExceptions.kt

@@ -13,11 +13,16 @@
  * License for the specific language governing permissions and limitations under
  * the License.
  */
-package com.google.gwt.dev.js;
+package com.google.gwt.dev.js.parserExceptions
+
+import com.google.gwt.dev.js.rhino.CodePosition
 
 /**
- * Used only to exit parser on error
+ * Can be used in Error reporter to exit parser
  */
-public class AbortParsingException extends RuntimeException {
-  public AbortParsingException() {}
-}
+public class AbortParsingException : RuntimeException()
+
+public class JsParserException(
+        message: String,
+        val position: CodePosition
+) : RuntimeException("$message at $position")

js/js.parser/src/com/google/gwt/dev/js/rhino/CodePosition.kt

@@ -23,4 +23,6 @@ class CodePosition(val line: Int, val offset: Int) : Comparable<CodePosition> {
                 line > other.line -> 1
                 else -> offset.compareTo(other.offset)
             }
+
+    override fun toString(): String = "($line, $offset)"
 }