| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 |
|---|
| 3 | |
|---|
| 4 | #include "parser.h" |
|---|
| 5 | #include "utils.h" |
|---|
| 6 | #include <stdio.h> |
|---|
| 7 | #include <stdlib.h> |
|---|
| 8 | |
|---|
| 9 | QT_BEGIN_NAMESPACE |
|---|
| 10 | |
|---|
| 11 | #ifdef USE_LEXEM_STORE |
|---|
| 12 | Symbol::LexemStore Symbol::lexemStore; |
|---|
| 13 | #endif |
|---|
| 14 | |
|---|
| 15 | static const char *error_msg = nullptr; |
|---|
| 16 | |
|---|
| 17 | /*! \internal |
|---|
| 18 | Base implementation for printing diagnostic messages. |
|---|
| 19 | |
|---|
| 20 | For example: |
|---|
| 21 | "/path/to/file:line:column: error: %s\n" |
|---|
| 22 | '%s' is replaced by \a msg. (Currently "column" is always 1). |
|---|
| 23 | |
|---|
| 24 | If sym.lineNum is -1, the line and column parts aren't printed: |
|---|
| 25 | "/path/to/file: error: %s\n" |
|---|
| 26 | |
|---|
| 27 | \a formatStringSuffix specifies the type of the message e.g.: |
|---|
| 28 | "error: %s\n" |
|---|
| 29 | "warning: %s\n" |
|---|
| 30 | "note: %s\n" |
|---|
| 31 | "Parse error at %s\n" (from defaultErrorMsg()) |
|---|
| 32 | */ |
|---|
| 33 | void Parser::printMsg(QByteArrayView formatStringSuffix, QByteArrayView msg, const Symbol &sym) |
|---|
| 34 | { |
|---|
| 35 | if (sym.lineNum != -1) { |
|---|
| 36 | #ifdef Q_CC_MSVC |
|---|
| 37 | QByteArray formatString = "%s(%d:%d): " + formatStringSuffix; |
|---|
| 38 | #else |
|---|
| 39 | QByteArray formatString = "%s:%d:%d: " + formatStringSuffix; |
|---|
| 40 | #endif |
|---|
| 41 | fprintf(stderr, format: formatString.constData(), |
|---|
| 42 | currentFilenames.top().constData(), sym.lineNum, 1, msg.data()); |
|---|
| 43 | } else { |
|---|
| 44 | QByteArray formatString = "%s: " + formatStringSuffix; |
|---|
| 45 | fprintf(stderr, format: formatString.constData(), |
|---|
| 46 | currentFilenames.top().constData(), msg.data()); |
|---|
| 47 | } |
|---|
| 48 | } |
|---|
| 49 | |
|---|
| 50 | void Parser::defaultErrorMsg(const Symbol &sym) |
|---|
| 51 | { |
|---|
| 52 | if (sym.lineNum != -1) |
|---|
| 53 | printMsg(formatStringSuffix: "error: Parse error at \"%s\"\n" , msg: sym.lexem().data(), sym); |
|---|
| 54 | else |
|---|
| 55 | printMsg(formatStringSuffix: "error: could not parse file\n" , msg: "" , sym); |
|---|
| 56 | } |
|---|
| 57 | |
|---|
| 58 | void Parser::error(const Symbol &sym) |
|---|
| 59 | { |
|---|
| 60 | defaultErrorMsg(sym); |
|---|
| 61 | exit(EXIT_FAILURE); |
|---|
| 62 | } |
|---|
| 63 | |
|---|
| 64 | void Parser::error(const char *msg) |
|---|
| 65 | { |
|---|
| 66 | if (msg || error_msg) |
|---|
| 67 | printMsg(formatStringSuffix: "error: %s\n" , |
|---|
| 68 | msg: msg ? msg : error_msg, |
|---|
| 69 | sym: index > 0 ? symbol() : Symbol{}); |
|---|
| 70 | else |
|---|
| 71 | defaultErrorMsg(sym: symbol()); |
|---|
| 72 | |
|---|
| 73 | exit(EXIT_FAILURE); |
|---|
| 74 | } |
|---|
| 75 | |
|---|
| 76 | void Parser::warning(const char *msg) { |
|---|
| 77 | if (displayWarnings && msg) |
|---|
| 78 | printMsg(formatStringSuffix: "warning: %s\n" , msg, sym: index > 0 ? symbol() : Symbol{}); |
|---|
| 79 | } |
|---|
| 80 | |
|---|
| 81 | void Parser::note(const char *msg) { |
|---|
| 82 | if (displayNotes && msg) |
|---|
| 83 | printMsg(formatStringSuffix: "note: %s\n" , msg, sym: index > 0 ? symbol() : Symbol{}); |
|---|
| 84 | } |
|---|
| 85 | |
|---|
| 86 | QT_END_NAMESPACE |
|---|
| 87 | |
|---|
