Error reporting for SVGLength and SVGLengthList

third_party/WebKit/Source/core/svg/SVGParsingError.h

 /*
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
  * Copyright (C) 2011 Apple, Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 23 matching lines @@
 
 class QualifiedName;
 
 enum class SVGParseStatus {
     NoError,
 
     // Syntax errors
     TrailingGarbage,
     ExpectedBoolean,
     ExpectedEnumeration,
+    ExpectedLength,
     ExpectedNumber,
 
     // Semantic errors
     NegativeValue,
 
     // Generic error
     ParsingFailed,
 };
 
 class SVGParsingError {
     STACK_ALLOCATED();
 public:
     SVGParsingError(SVGParseStatus status = SVGParseStatus::NoError, size_t locus = 0)
         : m_status(static_cast<unsigned>(status))
         , m_locus(checkLocus(locus))
     {
         ASSERT(this->status() == status);
     }
 
     SVGParseStatus status() const { return static_cast<SVGParseStatus>(m_status); }
 
     bool hasLocus() const { return m_locus != kNoLocus; }
     unsigned locus() const { return m_locus; }
 
+    // Move the locus of this error by |offset|, returning in a new error.
+    SVGParsingError offsetWith(size_t offset) const { return SVGParsingError(status(), offset + locus()); }
+
     // Generates a string describing this error for |value| in the context of
     // an <element, attribute>-name pair.
     String format(const String& tagName, const QualifiedName&, const AtomicString& value) const;
 
 private:
     static const int kLocusBits = 24;
     static const unsigned kNoLocus = (1u << kLocusBits) - 1;
 
     static unsigned checkLocus(size_t locus)
     {
@@ skipping 11 matching lines @@
 
 inline bool operator==(const SVGParsingError& error, SVGParseStatus status)
 {
     return error.status() == status;
 }
 inline bool operator!=(const SVGParsingError& error, SVGParseStatus status) { return !(error == status); }
 
 } // namespace blink
 
 #endif // SVGParsingError_h