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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/css/parser/CSSParserTokenRange.h" | 5 #include "core/css/parser/CSSParserTokenRange.h" |
6 | 6 |
7 #include "wtf/StaticConstructors.h" | 7 #include "wtf/StaticConstructors.h" |
8 #include "wtf/text/StringBuilder.h" | 8 #include "wtf/text/StringBuilder.h" |
9 | 9 |
10 namespace blink { | 10 namespace blink { |
11 | 11 |
12 DEFINE_GLOBAL(CSSParserToken, staticEOFToken); | 12 DEFINE_GLOBAL(CSSParserToken, staticEOFToken); |
13 | 13 |
14 void CSSParserTokenRange::initStaticEOFToken() { | 14 void CSSParserTokenRange::initStaticEOFToken() { |
15 new ((void*)&staticEOFToken) CSSParserToken(EOFToken); | 15 new ((void*)&staticEOFToken) CSSParserToken(EOFToken); |
16 } | 16 } |
17 | 17 |
18 CSSParserTokenRange CSSParserTokenRange::makeSubRange( | 18 CSSParserTokenRange CSSParserTokenRange::makeSubRange( |
19 const CSSParserToken* first, | 19 const CSSParserToken* first, |
20 const CSSParserToken* last) const { | 20 const CSSParserToken* last) const { |
21 if (first == &staticEOFToken) | 21 if (first == &staticEOFToken) |
22 first = m_last; | 22 first = m_last; |
23 if (last == &staticEOFToken) | 23 if (last == &staticEOFToken) |
24 last = m_last; | 24 last = m_last; |
25 ASSERT(first <= last); | 25 DCHECK_LE(first, last); |
26 return CSSParserTokenRange(first, last); | 26 return CSSParserTokenRange(first, last); |
27 } | 27 } |
28 | 28 |
29 CSSParserTokenRange CSSParserTokenRange::consumeBlock() { | 29 CSSParserTokenRange CSSParserTokenRange::consumeBlock() { |
30 ASSERT(peek().getBlockType() == CSSParserToken::BlockStart); | 30 DCHECK_EQ(peek().getBlockType(), CSSParserToken::BlockStart); |
31 const CSSParserToken* start = &peek() + 1; | 31 const CSSParserToken* start = &peek() + 1; |
32 unsigned nestingLevel = 0; | 32 unsigned nestingLevel = 0; |
33 do { | 33 do { |
34 const CSSParserToken& token = consume(); | 34 const CSSParserToken& token = consume(); |
35 if (token.getBlockType() == CSSParserToken::BlockStart) | 35 if (token.getBlockType() == CSSParserToken::BlockStart) |
36 nestingLevel++; | 36 nestingLevel++; |
37 else if (token.getBlockType() == CSSParserToken::BlockEnd) | 37 else if (token.getBlockType() == CSSParserToken::BlockEnd) |
38 nestingLevel--; | 38 nestingLevel--; |
39 } while (nestingLevel && m_first < m_last); | 39 } while (nestingLevel && m_first < m_last); |
40 | 40 |
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61 // We're supposed to insert comments between certain pairs of token types | 61 // We're supposed to insert comments between certain pairs of token types |
62 // as per spec, but since this is currently only used for @supports CSSOM | 62 // as per spec, but since this is currently only used for @supports CSSOM |
63 // we just get these cases wrong and avoid the additional complexity. | 63 // we just get these cases wrong and avoid the additional complexity. |
64 StringBuilder builder; | 64 StringBuilder builder; |
65 for (const CSSParserToken* it = m_first; it < m_last; ++it) | 65 for (const CSSParserToken* it = m_first; it < m_last; ++it) |
66 it->serialize(builder); | 66 it->serialize(builder); |
67 return builder.toString(); | 67 return builder.toString(); |
68 } | 68 } |
69 | 69 |
70 } // namespace blink | 70 } // namespace blink |
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