1 /* 2 * Copyright 2016 Google Inc. All Rights Reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.turbine.diag; 18 19 import static java.util.stream.Collectors.joining; 20 21 import com.google.common.collect.ImmutableList; 22 import javax.tools.Diagnostic; 23 24 /** A compilation error. */ 25 public class TurbineError extends Error { 26 27 /** A diagnostic kind. */ 28 public enum ErrorKind { 29 UNEXPECTED_INPUT("unexpected input: %c"), 30 UNEXPECTED_IDENTIFIER("unexpected identifier '%s'"), 31 UNEXPECTED_EOF("unexpected end of input"), 32 UNTERMINATED_STRING("unterminated string literal"), 33 UNTERMINATED_CHARACTER_LITERAL("unterminated char literal"), 34 UNTERMINATED_EXPRESSION("unterminated expression, expected ';' not found"), 35 INVALID_UNICODE("illegal unicode escape"), 36 EMPTY_CHARACTER_LITERAL("empty char literal"), 37 EXPECTED_TOKEN("expected token %s"), 38 INVALID_LITERAL("invalid literal: %s"), 39 UNEXPECTED_TYPE_PARAMETER("unexpected type parameter %s"), 40 SYMBOL_NOT_FOUND("symbol not found %s"), 41 CLASS_FILE_NOT_FOUND("could not locate class file for %s"), 42 TYPE_PARAMETER_QUALIFIER("type parameter used as type qualifier"), 43 UNEXPECTED_TOKEN("unexpected token: %s"), 44 INVALID_ANNOTATION_ARGUMENT("invalid annotation argument"), 45 CANNOT_RESOLVE("could not resolve %s"), 46 EXPRESSION_ERROR("could not evaluate constant expression"), 47 OPERAND_TYPE("bad operand type %s"), 48 CYCLIC_HIERARCHY("cycle in class hierarchy: %s"), 49 NOT_AN_ANNOTATION("%s is not an annotation"), 50 NONREPEATABLE_ANNOTATION("%s is not @Repeatable"), 51 DUPLICATE_DECLARATION("duplicate declaration of %s"), 52 BAD_MODULE_INFO("unexpected declaration found in module-info"), 53 UNCLOSED_COMMENT("unclosed comment"), 54 PROC("%s"); 55 56 private final String message; 57 ErrorKind(String message)58 ErrorKind(String message) { 59 this.message = message; 60 } 61 format(Object... args)62 String format(Object... args) { 63 return String.format(message, args); 64 } 65 } 66 67 /** 68 * Formats a diagnostic. 69 * 70 * @param source the current source file 71 * @param kind the error kind 72 * @param args format args 73 */ format(SourceFile source, ErrorKind kind, Object... args)74 public static TurbineError format(SourceFile source, ErrorKind kind, Object... args) { 75 return new TurbineError(ImmutableList.of(TurbineDiagnostic.format(source, kind, args))); 76 } 77 78 /** 79 * Formats a diagnostic. 80 * 81 * @param position the diagnostic position 82 * @param kind the error kind 83 * @param args format args 84 */ format( SourceFile source, int position, ErrorKind kind, Object... args)85 public static TurbineError format( 86 SourceFile source, int position, ErrorKind kind, Object... args) { 87 return new TurbineError( 88 ImmutableList.of( 89 TurbineDiagnostic.format(Diagnostic.Kind.ERROR, source, position, kind, args))); 90 } 91 92 private final ImmutableList<TurbineDiagnostic> diagnostics; 93 TurbineError(ImmutableList<TurbineDiagnostic> diagnostics)94 public TurbineError(ImmutableList<TurbineDiagnostic> diagnostics) { 95 this.diagnostics = diagnostics; 96 } 97 98 @Override getMessage()99 public String getMessage() { 100 return diagnostics.stream().map(d -> d.diagnostic()).collect(joining(System.lineSeparator())); 101 } 102 diagnostics()103 public ImmutableList<TurbineDiagnostic> diagnostics() { 104 return diagnostics; 105 } 106 } 107