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// diagnostics.cpp
#include "diagnostics.h"
#include "compiler.h"
#include "name.h"
#include "syntax.h"
#include <assert.h>
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#define NOMINMAX
#include <Windows.h>
#undef WIN32_LEAN_AND_MEAN
#undef NOMINMAX
#include <d3dcompiler.h>
#endif
namespace Slang {
void printDiagnosticArg(StringBuilder& sb, char const* str)
{
sb << str;
}
void printDiagnosticArg(StringBuilder& sb, int str)
{
sb << str;
}
void printDiagnosticArg(StringBuilder& sb, UInt val)
{
// TODO: make this robust
sb << (int) val;
}
void printDiagnosticArg(StringBuilder& sb, Slang::String const& str)
{
sb << str;
}
void printDiagnosticArg(StringBuilder& sb, Name* name)
{
sb << getText(name);
}
void printDiagnosticArg(StringBuilder& sb, Decl* decl)
{
sb << getText(decl->getName());
}
void printDiagnosticArg(StringBuilder& sb, Type* type)
{
sb << type->ToString();
}
void printDiagnosticArg(StringBuilder& sb, TypeExp const& type)
{
sb << type.type->ToString();
}
void printDiagnosticArg(StringBuilder& sb, QualType const& type)
{
sb << type.type->ToString();
}
void printDiagnosticArg(StringBuilder& sb, TokenType tokenType)
{
sb << TokenTypeToString(tokenType);
}
void printDiagnosticArg(StringBuilder& sb, Token const& token)
{
sb << token.Content;
}
SourceLoc const& getDiagnosticPos(SyntaxNode const* syntax)
{
return syntax->loc;
}
SourceLoc const& getDiagnosticPos(Token const& token)
{
return token.loc;
}
SourceLoc const& getDiagnosticPos(TypeExp const& typeExp)
{
return typeExp.exp->loc;
}
// Take the format string for a diagnostic message, along with its arguments, and turn it into a
static void formatDiagnosticMessage(StringBuilder& sb, char const* format, int argCount, DiagnosticArg const* const* args)
{
char const* spanBegin = format;
for(;;)
{
char const* spanEnd = spanBegin;
while (int c = *spanEnd)
{
if (c == '$')
break;
spanEnd++;
}
sb.Append(spanBegin, int(spanEnd - spanBegin));
if (!*spanEnd)
return;
SLANG_ASSERT(*spanEnd == '$');
spanEnd++;
int d = *spanEnd++;
switch (d)
{
// A double dollar sign `$$` is used to emit a single `$`
case '$':
sb.Append('$');
break;
// A single digit means to emit the corresponding argument.
// TODO: support more than 10 arguments, and add options
// to control formatting, etc.
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
{
int index = d - '0';
if (index >= argCount)
{
// TODO(tfoley): figure out what a good policy will be for "panic" situations like this
throw InvalidOperationException("too few arguments for diagnostic message");
}
else
{
DiagnosticArg const* arg = args[index];
arg->printFunc(sb, arg->data);
}
}
break;
default:
throw InvalidOperationException("invalid diagnostic message format");
break;
}
spanBegin = spanEnd;
}
}
static void formatDiagnostic(
DiagnosticSink* sink,
StringBuilder& sb,
Diagnostic const& diagnostic)
{
auto sourceManager = sink->sourceManager;
auto expandedLoc = sourceManager->expandSourceLoc(diagnostic.loc);
auto humaneLoc = getHumaneLoc(expandedLoc);
sb << humaneLoc.getPath();
sb << "(";
sb << humaneLoc.line;
sb << "): ";
sb << getSeverityName(diagnostic.severity);
if( diagnostic.ErrorID >= 0 )
{
sb << " ";
sb << diagnostic.ErrorID;
}
sb << ": ";
sb << diagnostic.Message;
sb << "\n";
}
void DiagnosticSink::diagnoseImpl(SourceLoc const& pos, DiagnosticInfo const& info, int argCount, DiagnosticArg const* const* args)
{
StringBuilder sb;
formatDiagnosticMessage(sb, info.messageFormat, argCount, args);
Diagnostic diagnostic;
diagnostic.ErrorID = info.id;
diagnostic.Message = sb.ProduceString();
diagnostic.loc = pos;
diagnostic.severity = info.severity;
if (diagnostic.severity >= Severity::Error)
{
errorCount++;
}
// Did the client supply a callback for us to use?
if( callback )
{
// If so, pass the error string along to them
StringBuilder messageBuilder;
formatDiagnostic(this, messageBuilder, diagnostic);
callback(messageBuilder.ProduceString().begin(), callbackUserData);
}
else
{
// If the user doesn't have a callback, then just
// collect our diagnostic messages into a buffer
formatDiagnostic(this, outputBuffer, diagnostic);
}
if (diagnostic.severity >= Severity::Fatal)
{
// TODO: figure out a better policy for aborting compilation
throw AbortCompilationException();
}
}
void DiagnosticSink::diagnoseRaw(
Severity severity,
char const* message)
{
if (severity >= Severity::Error)
{
errorCount++;
}
// Did the client supply a callback for us to use?
if( callback )
{
// If so, pass the error string along to them
callback(message, callbackUserData);
}
else
{
// If the user doesn't have a callback, then just
// collect our diagnostic messages into a buffer
outputBuffer.append(message);
}
if (severity >= Severity::Fatal)
{
// TODO: figure out a better policy for aborting compilation
throw InvalidOperationException();
}
}
namespace Diagnostics
{
#define DIAGNOSTIC(id, severity, name, messageFormat) const DiagnosticInfo name = { id, Severity::severity, messageFormat };
#include "diagnostic-defs.h"
}
} // namespace Slang
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