diff options
Diffstat (limited to 'tools/ramscrgen/sym_file.cpp')
| -rw-r--r-- | tools/ramscrgen/sym_file.cpp | 984 |
1 files changed, 492 insertions, 492 deletions
diff --git a/tools/ramscrgen/sym_file.cpp b/tools/ramscrgen/sym_file.cpp index 5379bd9..1272ef1 100644 --- a/tools/ramscrgen/sym_file.cpp +++ b/tools/ramscrgen/sym_file.cpp @@ -1,492 +1,492 @@ -// Copyright(c) 2016 YamaArashi -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the "Software"), to deal -// in the Software without restriction, including without limitation the rights -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -// copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in -// all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -// THE SOFTWARE. - -#include <cstdio> -#include <cstdarg> -#include <climits> -#include "ramscrgen.h" -#include "sym_file.h" -#include "char_util.h" - -SymFile::SymFile(std::string filename) : m_filename(filename) -{ - FILE *fp = std::fopen(filename.c_str(), "rb"); - - if (fp == NULL) - FATAL_ERROR("Failed to open \"%s\" for reading.\n", filename.c_str()); - - std::fseek(fp, 0, SEEK_END); - - m_size = std::ftell(fp); - - if (m_size < 0) - FATAL_ERROR("File size of \"%s\" is less than zero.\n", filename.c_str()); - - m_buffer = new char[m_size + 1]; - - std::rewind(fp); - - if (std::fread(m_buffer, m_size, 1, fp) != 1) - FATAL_ERROR("Failed to read \"%s\".\n", filename.c_str()); - - m_buffer[m_size] = 0; - - std::fclose(fp); - - m_pos = 0; - m_lineNum = 1; - m_lineStart = 0; - m_inLangConditional = false; - - RemoveComments(); -} - -SymFile::SymFile(SymFile&& other) : m_filename(std::move(other.m_filename)) -{ - m_buffer = other.m_buffer; - m_pos = other.m_pos; - m_size = other.m_size; - m_lineNum = other.m_lineNum; - m_lineStart = other.m_lineStart; - - other.m_buffer = nullptr; -} - -SymFile::~SymFile() -{ - delete[] m_buffer; -} - -// Removes comments to simplify further processing. -// It stops upon encountering a null character, -// which may or may not be the end of file marker. -// If it's not, the error will be caught later. -void SymFile::RemoveComments() -{ - long pos = 0; - char stringChar = 0; - - for (;;) - { - if (m_buffer[pos] == 0) - return; - - if (stringChar != 0) - { - if (m_buffer[pos] == '\\' && m_buffer[pos + 1] == stringChar) - { - pos += 2; - } - else - { - if (m_buffer[pos] == stringChar) - stringChar = 0; - pos++; - } - } - else if (m_buffer[pos] == '@' && (pos == 0 || m_buffer[pos - 1] != '\\')) - { - while (m_buffer[pos] != '\n' && m_buffer[pos] != 0) - m_buffer[pos++] = ' '; - } - else if (m_buffer[pos] == '/' && m_buffer[pos + 1] == '*') - { - m_buffer[pos++] = ' '; - m_buffer[pos++] = ' '; - - char commentStringChar = 0; - - for (;;) - { - if (m_buffer[pos] == 0) - return; - - if (commentStringChar != 0) - { - if (m_buffer[pos] == '\\' && m_buffer[pos + 1] == commentStringChar) - { - m_buffer[pos++] = ' '; - m_buffer[pos++] = ' '; - } - else - { - if (m_buffer[pos] == commentStringChar) - commentStringChar = 0; - if (m_buffer[pos] != '\n') - m_buffer[pos] = ' '; - pos++; - } - } - else - { - if (m_buffer[pos] == '*' && m_buffer[pos + 1] == '/') - { - m_buffer[pos++] = ' '; - m_buffer[pos++] = ' '; - break; - } - else - { - if (m_buffer[pos] == '"' || m_buffer[pos] == '\'') - commentStringChar = m_buffer[pos]; - if (m_buffer[pos] != '\n') - m_buffer[pos] = ' '; - pos++; - } - } - } - } - else - { - if (m_buffer[pos] == '"' || m_buffer[pos] == '\'') - stringChar = m_buffer[pos]; - pos++; - } - } -} - -// Checks if we're at a particular directive and if so, consumes it. -// Returns whether the directive was found. -bool SymFile::CheckForDirective(std::string name) -{ - long i; - long length = static_cast<long>(name.length()); - - for (i = 0; i < length && m_pos + i < m_size; i++) - if (name[i] != m_buffer[m_pos + i]) - return false; - - if (i < length) - return false; - - m_pos += length; - - return true; -} - -// Checks if we're at a known directive and if so, consumes it. -// Returns which directive was found. -Directive SymFile::GetDirective() -{ - SkipWhitespace(); - - if (CheckForDirective(".include")) - return Directive::Include; - else if (CheckForDirective(".space")) - return Directive::Space; - else if (CheckForDirective(".align")) - return Directive::Align; - else - return Directive::Unknown; -} - -// Checks if we're at label. -// Returns the name if so and an empty string if not. -std::string SymFile::GetLabel(bool requireColon) -{ - long start = m_pos; - long pos = m_pos; - - if (IsIdentifierStartingChar(m_buffer[pos])) - { - pos++; - - while (IsIdentifierChar(m_buffer[pos])) - pos++; - } - - if (requireColon) - { - if (m_buffer[pos] == ':') - { - if (pos != start) - m_pos = pos + 1; - } - else - { - pos = start; - } - } - else - { - m_pos = pos; - } - - return std::string(&m_buffer[start], pos - start); -} - -// Skips tabs and spaces. -void SymFile::SkipWhitespace() -{ - while (m_buffer[m_pos] == '\t' || m_buffer[m_pos] == ' ') - m_pos++; -} - -// Reads include path. -std::string SymFile::ReadPath() -{ - SkipWhitespace(); - - if (m_buffer[m_pos] != '"') - RaiseError("expected file path"); - - m_pos++; - - int length = 0; - long startPos = m_pos; - - while (m_buffer[m_pos] != '"') - { - unsigned char c = m_buffer[m_pos++]; - - if (c == 0) - { - if (m_pos >= m_size) - RaiseError("unexpected EOF in include string"); - else - RaiseError("unexpected null character in include string"); - } - - if (!IsAsciiPrintable(c)) - RaiseError("unexpected character '\\x%02X' in include string", c); - - // Don't bother allowing any escape sequences. - if (c == '\\') - { - c = m_buffer[m_pos]; - RaiseError("unexpected escape '\\%c' in include string", c); - } - - length++; - - if (length > kMaxPath) - RaiseError("path is too long"); - } - - m_pos++; // Go past the right quote. - - return std::string(&m_buffer[startPos], length); -} - -// If we're at a comma, consumes it. -// Returns whether a comma was found. -bool SymFile::ConsumeComma() -{ - if (m_buffer[m_pos] == ',') - { - m_pos++; - return true; - } - - return false; -} - -// Converts digit character to numerical value. -static int ConvertDigit(char c, int radix) -{ - int digit; - - if (c >= '0' && c <= '9') - digit = c - '0'; - else if (c >= 'A' && c <= 'F') - digit = 10 + c - 'A'; - else if (c >= 'a' && c <= 'f') - digit = 10 + c - 'a'; - else - return -1; - - return (digit < radix) ? digit : -1; -} - -// Reads an integer. -bool SymFile::ReadInteger(unsigned long& n) -{ - SkipWhitespace(); - - if (!IsAsciiDigit(m_buffer[m_pos])) - return false; - - int startPos = m_pos; - int radix = 10; - - if (m_buffer[m_pos] == '0' && m_buffer[m_pos + 1] == 'x') - { - radix = 16; - m_pos += 2; - } - - unsigned long cutoff = ULONG_MAX / radix; - unsigned long cutoffRemainder = ULONG_MAX % radix; - int digit; - - n = 0; - - while ((digit = ConvertDigit(m_buffer[m_pos], radix)) != -1) - { - if (n < cutoff || (n == cutoff && (unsigned long)digit <= cutoffRemainder)) - { - n = n * radix + digit; - } - else - { - m_pos++; - - while (ConvertDigit(m_buffer[m_pos], radix) != -1) - m_pos++; - - RaiseError("integer is too large (%s)", std::string(&m_buffer[startPos], m_pos - startPos).c_str()); - } - - m_pos++; - } - - return true; -} - -// Asserts that the rest of the line is empty and moves to the next one. -void SymFile::ExpectEmptyRestOfLine() -{ - SkipWhitespace(); - - if (m_buffer[m_pos] == 0) - { - if (m_pos >= m_size) - RaiseWarning("file doesn't end with newline"); - else - RaiseError("unexpected null character"); - } - else if (m_buffer[m_pos] == '\n') - { - m_pos++; - m_lineStart = m_pos; - m_lineNum++; - } - else if (m_buffer[m_pos] == '\r') - { - RaiseError("only Unix-style LF newlines are supported"); - } - else - { - RaiseError("junk at end of line"); - } -} - - -void SymFile::SkipLine() -{ - while (m_buffer[m_pos] != 0 && m_buffer[m_pos] != '\n') - m_pos++; - - if (m_buffer[m_pos] == '\n') - m_pos++; -} - -// Checks if we're at the end of the file. -bool SymFile::IsAtEnd() -{ - return (m_pos >= m_size); -} - -void SymFile::HandleLangConditional(std::string lang) -{ - if (m_buffer[m_pos] != '#') - return; - - m_pos++; - - if (CheckForDirective("begin")) - { - if (m_inLangConditional) - RaiseError("already inside language conditional"); - - SkipWhitespace(); - - std::string label = GetLabel(false); - - if (label.length() == 0) - RaiseError("no language name after #begin"); - - ExpectEmptyRestOfLine(); - - if (lang == label) - { - m_inLangConditional = true; - } - else - { - while (!IsAtEnd() && m_buffer[m_pos] != '#') - SkipLine(); - - if (m_buffer[m_pos] != '#') - RaiseError("unterminated language conditional"); - - m_pos++; - - if (!CheckForDirective("end")) - RaiseError("expected #end"); - - ExpectEmptyRestOfLine(); - } - } - else if (CheckForDirective("end")) - { - if (!m_inLangConditional) - RaiseError("not inside language conditional"); - - m_inLangConditional = false; - - ExpectEmptyRestOfLine(); - } - else - { - RaiseError("unknown # directive"); - } -} - -// Reports a diagnostic message. -void SymFile::ReportDiagnostic(const char* type, const char* format, std::va_list args) -{ - const int bufferSize = 1024; - char buffer[bufferSize]; - std::vsnprintf(buffer, bufferSize, format, args); - std::fprintf(stderr, "%s:%ld: %s: %s\n", m_filename.c_str(), m_lineNum, type, buffer); -} - -#define DO_REPORT(type) \ -do \ -{ \ - std::va_list args; \ - va_start(args, format); \ - ReportDiagnostic(type, format, args); \ - va_end(args); \ -} while (0) - -// Reports an error diagnostic and terminates the program. -void SymFile::RaiseError(const char* format, ...) -{ - DO_REPORT("error"); - std::exit(1); -} - -// Reports a warning diagnostic. -void SymFile::RaiseWarning(const char* format, ...) -{ - DO_REPORT("warning"); -} +// Copyright(c) 2016 YamaArashi
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#include <cstdio>
+#include <cstdarg>
+#include <climits>
+#include "ramscrgen.h"
+#include "sym_file.h"
+#include "char_util.h"
+
+SymFile::SymFile(std::string filename) : m_filename(filename)
+{
+ FILE *fp = std::fopen(filename.c_str(), "rb");
+
+ if (fp == NULL)
+ FATAL_ERROR("Failed to open \"%s\" for reading.\n", filename.c_str());
+
+ std::fseek(fp, 0, SEEK_END);
+
+ m_size = std::ftell(fp);
+
+ if (m_size < 0)
+ FATAL_ERROR("File size of \"%s\" is less than zero.\n", filename.c_str());
+
+ m_buffer = new char[m_size + 1];
+
+ std::rewind(fp);
+
+ if (std::fread(m_buffer, m_size, 1, fp) != 1)
+ FATAL_ERROR("Failed to read \"%s\".\n", filename.c_str());
+
+ m_buffer[m_size] = 0;
+
+ std::fclose(fp);
+
+ m_pos = 0;
+ m_lineNum = 1;
+ m_lineStart = 0;
+ m_inLangConditional = false;
+
+ RemoveComments();
+}
+
+SymFile::SymFile(SymFile&& other) : m_filename(std::move(other.m_filename))
+{
+ m_buffer = other.m_buffer;
+ m_pos = other.m_pos;
+ m_size = other.m_size;
+ m_lineNum = other.m_lineNum;
+ m_lineStart = other.m_lineStart;
+
+ other.m_buffer = nullptr;
+}
+
+SymFile::~SymFile()
+{
+ delete[] m_buffer;
+}
+
+// Removes comments to simplify further processing.
+// It stops upon encountering a null character,
+// which may or may not be the end of file marker.
+// If it's not, the error will be caught later.
+void SymFile::RemoveComments()
+{
+ long pos = 0;
+ char stringChar = 0;
+
+ for (;;)
+ {
+ if (m_buffer[pos] == 0)
+ return;
+
+ if (stringChar != 0)
+ {
+ if (m_buffer[pos] == '\\' && m_buffer[pos + 1] == stringChar)
+ {
+ pos += 2;
+ }
+ else
+ {
+ if (m_buffer[pos] == stringChar)
+ stringChar = 0;
+ pos++;
+ }
+ }
+ else if (m_buffer[pos] == '@' && (pos == 0 || m_buffer[pos - 1] != '\\'))
+ {
+ while (m_buffer[pos] != '\n' && m_buffer[pos] != 0)
+ m_buffer[pos++] = ' ';
+ }
+ else if (m_buffer[pos] == '/' && m_buffer[pos + 1] == '*')
+ {
+ m_buffer[pos++] = ' ';
+ m_buffer[pos++] = ' ';
+
+ char commentStringChar = 0;
+
+ for (;;)
+ {
+ if (m_buffer[pos] == 0)
+ return;
+
+ if (commentStringChar != 0)
+ {
+ if (m_buffer[pos] == '\\' && m_buffer[pos + 1] == commentStringChar)
+ {
+ m_buffer[pos++] = ' ';
+ m_buffer[pos++] = ' ';
+ }
+ else
+ {
+ if (m_buffer[pos] == commentStringChar)
+ commentStringChar = 0;
+ if (m_buffer[pos] != '\n')
+ m_buffer[pos] = ' ';
+ pos++;
+ }
+ }
+ else
+ {
+ if (m_buffer[pos] == '*' && m_buffer[pos + 1] == '/')
+ {
+ m_buffer[pos++] = ' ';
+ m_buffer[pos++] = ' ';
+ break;
+ }
+ else
+ {
+ if (m_buffer[pos] == '"' || m_buffer[pos] == '\'')
+ commentStringChar = m_buffer[pos];
+ if (m_buffer[pos] != '\n')
+ m_buffer[pos] = ' ';
+ pos++;
+ }
+ }
+ }
+ }
+ else
+ {
+ if (m_buffer[pos] == '"' || m_buffer[pos] == '\'')
+ stringChar = m_buffer[pos];
+ pos++;
+ }
+ }
+}
+
+// Checks if we're at a particular directive and if so, consumes it.
+// Returns whether the directive was found.
+bool SymFile::CheckForDirective(std::string name)
+{
+ long i;
+ long length = static_cast<long>(name.length());
+
+ for (i = 0; i < length && m_pos + i < m_size; i++)
+ if (name[i] != m_buffer[m_pos + i])
+ return false;
+
+ if (i < length)
+ return false;
+
+ m_pos += length;
+
+ return true;
+}
+
+// Checks if we're at a known directive and if so, consumes it.
+// Returns which directive was found.
+Directive SymFile::GetDirective()
+{
+ SkipWhitespace();
+
+ if (CheckForDirective(".include"))
+ return Directive::Include;
+ else if (CheckForDirective(".space"))
+ return Directive::Space;
+ else if (CheckForDirective(".align"))
+ return Directive::Align;
+ else
+ return Directive::Unknown;
+}
+
+// Checks if we're at label.
+// Returns the name if so and an empty string if not.
+std::string SymFile::GetLabel(bool requireColon)
+{
+ long start = m_pos;
+ long pos = m_pos;
+
+ if (IsIdentifierStartingChar(m_buffer[pos]))
+ {
+ pos++;
+
+ while (IsIdentifierChar(m_buffer[pos]))
+ pos++;
+ }
+
+ if (requireColon)
+ {
+ if (m_buffer[pos] == ':')
+ {
+ if (pos != start)
+ m_pos = pos + 1;
+ }
+ else
+ {
+ pos = start;
+ }
+ }
+ else
+ {
+ m_pos = pos;
+ }
+
+ return std::string(&m_buffer[start], pos - start);
+}
+
+// Skips tabs and spaces.
+void SymFile::SkipWhitespace()
+{
+ while (m_buffer[m_pos] == '\t' || m_buffer[m_pos] == ' ')
+ m_pos++;
+}
+
+// Reads include path.
+std::string SymFile::ReadPath()
+{
+ SkipWhitespace();
+
+ if (m_buffer[m_pos] != '"')
+ RaiseError("expected file path");
+
+ m_pos++;
+
+ int length = 0;
+ long startPos = m_pos;
+
+ while (m_buffer[m_pos] != '"')
+ {
+ unsigned char c = m_buffer[m_pos++];
+
+ if (c == 0)
+ {
+ if (m_pos >= m_size)
+ RaiseError("unexpected EOF in include string");
+ else
+ RaiseError("unexpected null character in include string");
+ }
+
+ if (!IsAsciiPrintable(c))
+ RaiseError("unexpected character '\\x%02X' in include string", c);
+
+ // Don't bother allowing any escape sequences.
+ if (c == '\\')
+ {
+ c = m_buffer[m_pos];
+ RaiseError("unexpected escape '\\%c' in include string", c);
+ }
+
+ length++;
+
+ if (length > kMaxPath)
+ RaiseError("path is too long");
+ }
+
+ m_pos++; // Go past the right quote.
+
+ return std::string(&m_buffer[startPos], length);
+}
+
+// If we're at a comma, consumes it.
+// Returns whether a comma was found.
+bool SymFile::ConsumeComma()
+{
+ if (m_buffer[m_pos] == ',')
+ {
+ m_pos++;
+ return true;
+ }
+
+ return false;
+}
+
+// Converts digit character to numerical value.
+static int ConvertDigit(char c, int radix)
+{
+ int digit;
+
+ if (c >= '0' && c <= '9')
+ digit = c - '0';
+ else if (c >= 'A' && c <= 'F')
+ digit = 10 + c - 'A';
+ else if (c >= 'a' && c <= 'f')
+ digit = 10 + c - 'a';
+ else
+ return -1;
+
+ return (digit < radix) ? digit : -1;
+}
+
+// Reads an integer.
+bool SymFile::ReadInteger(unsigned long& n)
+{
+ SkipWhitespace();
+
+ if (!IsAsciiDigit(m_buffer[m_pos]))
+ return false;
+
+ int startPos = m_pos;
+ int radix = 10;
+
+ if (m_buffer[m_pos] == '0' && m_buffer[m_pos + 1] == 'x')
+ {
+ radix = 16;
+ m_pos += 2;
+ }
+
+ unsigned long cutoff = ULONG_MAX / radix;
+ unsigned long cutoffRemainder = ULONG_MAX % radix;
+ int digit;
+
+ n = 0;
+
+ while ((digit = ConvertDigit(m_buffer[m_pos], radix)) != -1)
+ {
+ if (n < cutoff || (n == cutoff && (unsigned long)digit <= cutoffRemainder))
+ {
+ n = n * radix + digit;
+ }
+ else
+ {
+ m_pos++;
+
+ while (ConvertDigit(m_buffer[m_pos], radix) != -1)
+ m_pos++;
+
+ RaiseError("integer is too large (%s)", std::string(&m_buffer[startPos], m_pos - startPos).c_str());
+ }
+
+ m_pos++;
+ }
+
+ return true;
+}
+
+// Asserts that the rest of the line is empty and moves to the next one.
+void SymFile::ExpectEmptyRestOfLine()
+{
+ SkipWhitespace();
+
+ if (m_buffer[m_pos] == 0)
+ {
+ if (m_pos >= m_size)
+ RaiseWarning("file doesn't end with newline");
+ else
+ RaiseError("unexpected null character");
+ }
+ else if (m_buffer[m_pos] == '\n')
+ {
+ m_pos++;
+ m_lineStart = m_pos;
+ m_lineNum++;
+ }
+ else if (m_buffer[m_pos] == '\r')
+ {
+ RaiseError("only Unix-style LF newlines are supported");
+ }
+ else
+ {
+ RaiseError("junk at end of line");
+ }
+}
+
+
+void SymFile::SkipLine()
+{
+ while (m_buffer[m_pos] != 0 && m_buffer[m_pos] != '\n')
+ m_pos++;
+
+ if (m_buffer[m_pos] == '\n')
+ m_pos++;
+}
+
+// Checks if we're at the end of the file.
+bool SymFile::IsAtEnd()
+{
+ return (m_pos >= m_size);
+}
+
+void SymFile::HandleLangConditional(std::string lang)
+{
+ if (m_buffer[m_pos] != '#')
+ return;
+
+ m_pos++;
+
+ if (CheckForDirective("begin"))
+ {
+ if (m_inLangConditional)
+ RaiseError("already inside language conditional");
+
+ SkipWhitespace();
+
+ std::string label = GetLabel(false);
+
+ if (label.length() == 0)
+ RaiseError("no language name after #begin");
+
+ ExpectEmptyRestOfLine();
+
+ if (lang == label)
+ {
+ m_inLangConditional = true;
+ }
+ else
+ {
+ while (!IsAtEnd() && m_buffer[m_pos] != '#')
+ SkipLine();
+
+ if (m_buffer[m_pos] != '#')
+ RaiseError("unterminated language conditional");
+
+ m_pos++;
+
+ if (!CheckForDirective("end"))
+ RaiseError("expected #end");
+
+ ExpectEmptyRestOfLine();
+ }
+ }
+ else if (CheckForDirective("end"))
+ {
+ if (!m_inLangConditional)
+ RaiseError("not inside language conditional");
+
+ m_inLangConditional = false;
+
+ ExpectEmptyRestOfLine();
+ }
+ else
+ {
+ RaiseError("unknown # directive");
+ }
+}
+
+// Reports a diagnostic message.
+void SymFile::ReportDiagnostic(const char* type, const char* format, std::va_list args)
+{
+ const int bufferSize = 1024;
+ char buffer[bufferSize];
+ std::vsnprintf(buffer, bufferSize, format, args);
+ std::fprintf(stderr, "%s:%ld: %s: %s\n", m_filename.c_str(), m_lineNum, type, buffer);
+}
+
+#define DO_REPORT(type) \
+do \
+{ \
+ std::va_list args; \
+ va_start(args, format); \
+ ReportDiagnostic(type, format, args); \
+ va_end(args); \
+} while (0)
+
+// Reports an error diagnostic and terminates the program.
+void SymFile::RaiseError(const char* format, ...)
+{
+ DO_REPORT("error");
+ std::exit(1);
+}
+
+// Reports a warning diagnostic.
+void SymFile::RaiseWarning(const char* format, ...)
+{
+ DO_REPORT("warning");
+}
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