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//===- Diagnostic.cpp -----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "Diagnostics.h"
#include "mlir/Query/Matcher/ErrorBuilder.h"
namespace mlir::query::matcher::internal {
Diagnostics::ArgStream &
Diagnostics::ArgStream::operator<<(const llvm::Twine &arg) {
out->push_back(arg.str());
return *this;
}
Diagnostics::ArgStream Diagnostics::addError(SourceRange range,
ErrorType error) {
errorValues.emplace_back();
ErrorContent &last = errorValues.back();
last.contextStack = contextStack;
last.messages.emplace_back();
last.messages.back().range = range;
last.messages.back().type = error;
return ArgStream(&last.messages.back().args);
}
static llvm::StringRef errorTypeToFormatString(ErrorType type) {
switch (type) {
case ErrorType::RegistryMatcherNotFound:
return "Matcher not found: $0";
case ErrorType::RegistryWrongArgCount:
return "Incorrect argument count. (Expected = $0) != (Actual = $1)";
case ErrorType::RegistryWrongArgType:
return "Incorrect type for arg $0. (Expected = $1) != (Actual = $2)";
case ErrorType::RegistryValueNotFound:
return "Value not found: $0";
case ErrorType::RegistryNotBindable:
return "Matcher does not support binding.";
case ErrorType::ParserStringError:
return "Error parsing string token: <$0>";
case ErrorType::ParserNoOpenParen:
return "Error parsing matcher. Found token <$0> while looking for '('.";
case ErrorType::ParserNoCloseParen:
return "Error parsing matcher. Found end-of-code while looking for ')'.";
case ErrorType::ParserNoComma:
return "Error parsing matcher. Found token <$0> while looking for ','.";
case ErrorType::ParserNoCode:
return "End of code found while looking for token.";
case ErrorType::ParserNotAMatcher:
return "Input value is not a matcher expression.";
case ErrorType::ParserInvalidToken:
return "Invalid token <$0> found when looking for a value.";
case ErrorType::ParserTrailingCode:
return "Unexpected end of code.";
case ErrorType::ParserOverloadedType:
return "Input value has unresolved overloaded type: $0";
case ErrorType::ParserMalformedChainedExpr:
return "Period not followed by valid chained call.";
case ErrorType::ParserChainedExprInvalidArg:
return "Missing/Invalid argument for the chained call.";
case ErrorType::ParserChainedExprNoCloseParen:
return "Missing ')' for the chained call.";
case ErrorType::ParserChainedExprNoOpenParen:
return "Missing '(' for the chained call.";
case ErrorType::ParserFailedToBuildMatcher:
return "Failed to build matcher: $0.";
case ErrorType::None:
return "<N/A>";
}
llvm_unreachable("Unknown ErrorType value.");
}
static void formatErrorString(llvm::StringRef formatString,
llvm::ArrayRef<std::string> args,
llvm::raw_ostream &os) {
while (!formatString.empty()) {
std::pair<llvm::StringRef, llvm::StringRef> pieces =
formatString.split("$");
os << pieces.first.str();
if (pieces.second.empty())
break;
const char next = pieces.second.front();
formatString = pieces.second.drop_front();
if (next >= '0' && next <= '9') {
const unsigned index = next - '0';
if (index < args.size()) {
os << args[index];
} else {
os << "<Argument_Not_Provided>";
}
}
}
}
static void maybeAddLineAndColumn(SourceRange range, llvm::raw_ostream &os) {
if (range.start.line > 0 && range.start.column > 0) {
os << range.start.line << ":" << range.start.column << ": ";
}
}
void Diagnostics::printMessage(
const Diagnostics::ErrorContent::Message &message, const llvm::Twine prefix,
llvm::raw_ostream &os) const {
maybeAddLineAndColumn(message.range, os);
os << prefix;
formatErrorString(errorTypeToFormatString(message.type), message.args, os);
}
void Diagnostics::printErrorContent(const Diagnostics::ErrorContent &content,
llvm::raw_ostream &os) const {
if (content.messages.size() == 1) {
printMessage(content.messages[0], "", os);
} else {
for (size_t i = 0, e = content.messages.size(); i != e; ++i) {
if (i != 0)
os << "\n";
printMessage(content.messages[i],
"Candidate " + llvm::Twine(i + 1) + ": ", os);
}
}
}
void Diagnostics::print(llvm::raw_ostream &os) const {
for (const ErrorContent &error : errorValues) {
if (&error != &errorValues.front())
os << "\n";
printErrorContent(error, os);
}
}
} // namespace mlir::query::matcher::internal
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