skia2/include/sksl/SkSLErrorReporter.h
John Stiles ffeb6f2339 Remove SkSL::String class.
The previous CLs have removed the last significant differences between
SkSL::String and std::string. This CL removes SkSL::String entirely and
replaces it with std::string throughout the code.

Apologies for the very long CL, but I have done my best to make it as
simple and reviewable as possible. The vast majority of changes are
simple replacement of `SkSL::String` with `std::string`. In the rare
spots where code is moved from one place to another, it is logically
unchanged.

Change-Id: I39563d2db45da229f17f4504dfd63e00bde7a96e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/503339
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2022-02-03 14:59:16 +00:00

116 lines
2.6 KiB
C++

/*
* Copyright 2021 Google LLC.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_ERROR_REPORTER
#define SKSL_ERROR_REPORTER
#include "include/core/SkTypes.h"
#include "include/private/SkSLString.h"
#include <string>
#include <string_view>
#include <vector>
namespace SkSL {
#ifndef __has_builtin
#define __has_builtin(x) 0
#endif
class PositionInfo {
public:
PositionInfo(const char* file = nullptr, int line = -1)
: fFile(file)
, fLine(line) {}
#if __has_builtin(__builtin_FILE) && __has_builtin(__builtin_LINE)
static PositionInfo Capture(const char* file = __builtin_FILE(), int line = __builtin_LINE()) {
return PositionInfo(file, line);
}
#else
static PositionInfo Capture() { return PositionInfo(); }
#endif // __has_builtin(__builtin_FILE) && __has_builtin(__builtin_LINE)
const char* file_name() const {
return fFile;
}
int line() const {
return fLine;
}
private:
const char* fFile = nullptr;
int32_t fLine = -1;
};
/**
* Class which is notified in the event of an error.
*/
class ErrorReporter {
public:
ErrorReporter() {}
virtual ~ErrorReporter() {
SkASSERT(fPendingErrors.empty());
}
void error(std::string_view msg, PositionInfo position);
/**
* Reports an error message at the given line of the source text. Errors reported
* with a line of -1 will be queued until line number information can be determined.
*/
void error(int line, std::string_view msg);
const char* source() const { return fSource; }
void setSource(const char* source) { fSource = source; }
void reportPendingErrors(PositionInfo pos) {
for (const std::string& msg : fPendingErrors) {
this->handleError(msg, pos);
}
fPendingErrors.clear();
}
int errorCount() const {
return fErrorCount;
}
void resetErrorCount() {
fErrorCount = 0;
}
protected:
/**
* Called when an error is reported.
*/
virtual void handleError(std::string_view msg, PositionInfo position) = 0;
private:
PositionInfo position(int offset) const;
const char* fSource = nullptr;
std::vector<std::string> fPendingErrors;
int fErrorCount = 0;
};
/**
* Error reporter for tests that need an SkSL context; aborts immediately if an error is reported.
*/
class TestingOnly_AbortErrorReporter : public ErrorReporter {
public:
void handleError(std::string_view msg, PositionInfo pos) override {
SK_ABORT("%.*s", (int)msg.length(), msg.data());
}
};
} // namespace SkSL
#endif