| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 |
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| 3 | |
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| 4 | #include "parser.h" |
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| 5 | #include "utils.h" |
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| 6 | #include <stdio.h> |
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| 7 | #include <stdlib.h> |
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| 8 | |
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| 9 | QT_BEGIN_NAMESPACE |
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| 10 | |
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| 11 | static const char *error_msg = nullptr; |
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| 12 | |
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| 13 | /*! \internal |
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| 14 | Base implementation for printing diagnostic messages. |
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| 15 | |
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| 16 | For example: |
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| 17 | "/path/to/file:line:column: error: %s\n" |
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| 18 | '%s' is replaced by \a msg. (Currently "column" is always 1). |
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| 19 | |
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| 20 | If sym.lineNum is -1, the line and column parts aren't printed: |
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| 21 | "/path/to/file: error: %s\n" |
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| 22 | |
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| 23 | \a formatStringSuffix specifies the type of the message e.g.: |
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| 24 | "error: %s\n" |
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| 25 | "warning: %s\n" |
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| 26 | "note: %s\n" |
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| 27 | "Parse error at %s\n" (from defaultErrorMsg()) |
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| 28 | */ |
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| 29 | void Parser::printMsg(QByteArrayView formatStringSuffix, QByteArrayView msg, const Symbol &sym) |
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| 30 | { |
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| 31 | if (sym.lineNum != -1) { |
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| 32 | #ifdef Q_CC_MSVC |
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| 33 | QByteArray formatString = "%s(%d:%d): " + formatStringSuffix; |
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| 34 | #else |
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| 35 | QByteArray formatString = "%s:%d:%d: " + formatStringSuffix; |
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| 36 | #endif |
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| 37 | fprintf(stderr, format: formatString.constData(), |
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| 38 | currentFilenames.top().constData(), sym.lineNum, 1, msg.data()); |
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| 39 | } else { |
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| 40 | QByteArray formatString = "%s: " + formatStringSuffix; |
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| 41 | fprintf(stderr, format: formatString.constData(), |
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| 42 | currentFilenames.top().constData(), msg.data()); |
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| 43 | } |
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| 44 | } |
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| 45 | |
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| 46 | void Parser::defaultErrorMsg(const Symbol &sym) |
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| 47 | { |
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| 48 | if (sym.lineNum != -1) |
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| 49 | printMsg(formatStringSuffix: "error: Parse error at \"%s\"\n" , msg: sym.lexem().data(), sym); |
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| 50 | else |
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| 51 | printMsg(formatStringSuffix: "error: could not parse file\n" , msg: "" , sym); |
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| 52 | } |
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| 53 | |
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| 54 | void Parser::error(const Symbol &sym) |
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| 55 | { |
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| 56 | defaultErrorMsg(sym); |
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| 57 | exit(EXIT_FAILURE); |
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| 58 | } |
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| 59 | |
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| 60 | void Parser::error(const char *msg) |
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| 61 | { |
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| 62 | if (msg || error_msg) |
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| 63 | printMsg(formatStringSuffix: "error: %s\n" , |
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| 64 | msg: msg ? msg : error_msg, |
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| 65 | sym: index > 0 ? symbol() : Symbol{}); |
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| 66 | else |
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| 67 | defaultErrorMsg(sym: symbol()); |
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| 68 | |
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| 69 | exit(EXIT_FAILURE); |
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| 70 | } |
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| 71 | |
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| 72 | void Parser::warning(const Symbol &sym, QByteArrayView msg) |
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| 73 | { |
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| 74 | if (displayWarnings) |
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| 75 | printMsg(formatStringSuffix: "warning: %s\n" , msg, sym); |
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| 76 | } |
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| 77 | |
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| 78 | void Parser::warning(const char *msg) { |
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| 79 | warning(sym: index > 0 ? symbol() : Symbol{}, msg); |
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| 80 | } |
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| 81 | |
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| 82 | void Parser::note(const char *msg) { |
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| 83 | if (displayNotes && msg) |
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| 84 | printMsg(formatStringSuffix: "note: %s\n" , msg, sym: index > 0 ? symbol() : Symbol{}); |
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| 85 | } |
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| 86 | |
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| 87 | QT_END_NAMESPACE |
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| 88 | |
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