| 1 | /*
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| 2 | * Copyright (C) 2002 Harri Porten ([email protected])
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| 3 | * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
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| 4 | * Copyright (C) 2007 Eric Seidel <[email protected]>
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| 5 | *
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| 6 | * This library is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the GNU Library General Public
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| 8 | * License as published by the Free Software Foundation; either
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| 9 | * version 2 of the License, or (at your option) any later version.
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| 10 | *
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| 11 | * This library is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 14 | * Library General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU Library General Public License
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| 17 | * along with this library; see the file COPYING.LIB. If not, write to
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| 18 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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| 19 | * Boston, MA 02110-1301, USA.
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| 20 | *
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| 21 | */
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| 22 |
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| 23 | #include "config.h"
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| 24 | #include "nodes.h"
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| 25 |
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| 26 | #include <wtf/MathExtras.h>
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| 27 | #include <wtf/StringExtras.h>
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| 28 | #include <wtf/unicode/Unicode.h>
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| 29 |
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| 30 | using namespace WTF;
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| 31 | using namespace Unicode;
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| 32 |
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| 33 | namespace KJS {
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| 34 |
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| 35 | // A simple text streaming class that helps with code indentation.
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| 36 |
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| 37 | enum EndlType { Endl };
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| 38 | enum IndentType { Indent };
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| 39 | enum UnindentType { Unindent };
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| 40 | enum DotExprType { DotExpr };
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| 41 |
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| 42 | class SourceStream {
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| 43 | public:
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| 44 | SourceStream()
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| 45 | : m_numberNeedsParens(false)
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| 46 | , m_atStartOfStatement(true)
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| 47 | , m_precedence(PrecExpression)
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| 48 | {
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| 49 | }
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| 50 |
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| 51 | UString toString() const { return m_string; }
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| 52 |
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| 53 | SourceStream& operator<<(const Identifier&);
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| 54 | SourceStream& operator<<(const UString&);
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| 55 | SourceStream& operator<<(const char*);
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| 56 | SourceStream& operator<<(double);
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| 57 | SourceStream& operator<<(char);
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| 58 | SourceStream& operator<<(EndlType);
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| 59 | SourceStream& operator<<(IndentType);
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| 60 | SourceStream& operator<<(UnindentType);
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| 61 | SourceStream& operator<<(DotExprType);
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| 62 | SourceStream& operator<<(Precedence);
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| 63 | SourceStream& operator<<(const Node*);
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| 64 | template <typename T> SourceStream& operator<<(const RefPtr<T>& n) { return *this << n.get(); }
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| 65 |
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| 66 | private:
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| 67 | UString m_string;
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| 68 | UString m_spacesForIndentation;
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| 69 | bool m_numberNeedsParens;
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| 70 | bool m_atStartOfStatement;
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| 71 | Precedence m_precedence;
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| 72 | };
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| 73 |
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| 74 | // --------
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| 75 |
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| 76 | static UString escapeStringForPrettyPrinting(const UString& s)
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| 77 | {
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| 78 | UString escapedString;
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| 79 |
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| 80 | for (int i = 0; i < s.size(); i++) {
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| 81 | UChar c = s.data()[i];
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| 82 | switch (c) {
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| 83 | case '\"':
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| 84 | escapedString += "\\\"";
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| 85 | break;
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| 86 | case '\n':
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| 87 | escapedString += "\\n";
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| 88 | break;
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| 89 | case '\r':
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| 90 | escapedString += "\\r";
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| 91 | break;
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| 92 | case '\t':
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| 93 | escapedString += "\\t";
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| 94 | break;
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| 95 | case '\\':
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| 96 | escapedString += "\\\\";
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| 97 | break;
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| 98 | default:
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| 99 | if (c < 128 && isPrintableChar(c))
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| 100 | escapedString.append(c);
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| 101 | else {
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| 102 | char hexValue[7];
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| 103 | snprintf(hexValue, 7, "\\u%04x", c);
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| 104 | escapedString += hexValue;
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| 105 | }
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| 106 | }
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| 107 | }
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| 108 |
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| 109 | return escapedString;
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| 110 | }
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| 111 |
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| 112 | static const char* operatorString(Operator oper)
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| 113 | {
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| 114 | switch (oper) {
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| 115 | case OpEqual:
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| 116 | return "=";
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| 117 | case OpMultEq:
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| 118 | return "*=";
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| 119 | case OpDivEq:
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| 120 | return "/=";
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| 121 | case OpPlusEq:
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| 122 | return "+=";
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| 123 | case OpMinusEq:
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| 124 | return "-=";
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| 125 | case OpLShift:
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| 126 | return "<<=";
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| 127 | case OpRShift:
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| 128 | return ">>=";
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| 129 | case OpURShift:
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| 130 | return ">>>=";
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| 131 | case OpAndEq:
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| 132 | return "&=";
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| 133 | case OpXOrEq:
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| 134 | return "^=";
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| 135 | case OpOrEq:
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| 136 | return "|=";
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| 137 | case OpModEq:
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| 138 | return "%=";
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| 139 | case OpPlusPlus:
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| 140 | return "++";
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| 141 | case OpMinusMinus:
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| 142 | return "--";
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| 143 | }
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| 144 | ASSERT_NOT_REACHED();
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| 145 | return "???";
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| 146 | }
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| 147 |
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| 148 | static bool isParserRoundTripNumber(const UString& string)
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| 149 | {
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| 150 | double number = string.toDouble(false, false);
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| 151 | if (isnan(number) || isinf(number))
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| 152 | return false;
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| 153 | return string == UString::from(number);
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| 154 | }
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| 155 |
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| 156 | // --------
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| 157 |
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| 158 | SourceStream& SourceStream::operator<<(char c)
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| 159 | {
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| 160 | m_numberNeedsParens = false;
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| 161 | m_atStartOfStatement = false;
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| 162 | // use unsigned char to zero-extend instead of sign-extend
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| 163 | UChar ch(static_cast<unsigned char>(c));
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| 164 | m_string.append(ch);
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| 165 | return *this;
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| 166 | }
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| 167 |
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| 168 | SourceStream& SourceStream::operator<<(const char* s)
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| 169 | {
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| 170 | m_numberNeedsParens = false;
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| 171 | m_atStartOfStatement = false;
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| 172 | m_string += s;
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| 173 | return *this;
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| 174 | }
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| 175 |
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| 176 | SourceStream& SourceStream::operator<<(double value)
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| 177 | {
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| 178 | bool needParens = m_numberNeedsParens;
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| 179 | m_numberNeedsParens = false;
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| 180 | m_atStartOfStatement = false;
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| 181 |
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| 182 | if (needParens)
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| 183 | m_string.append('(');
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| 184 | m_string += UString::from(value);
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| 185 | if (needParens)
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| 186 | m_string.append(')');
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| 187 |
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| 188 | return *this;
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| 189 | }
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| 190 |
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| 191 | SourceStream& SourceStream::operator<<(const UString& s)
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| 192 | {
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| 193 | m_numberNeedsParens = false;
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| 194 | m_atStartOfStatement = false;
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| 195 | m_string += s;
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| 196 | return *this;
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| 197 | }
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| 198 |
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| 199 | SourceStream& SourceStream::operator<<(const Identifier& s)
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| 200 | {
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| 201 | m_numberNeedsParens = false;
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| 202 | m_atStartOfStatement = false;
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| 203 | m_string += s.ustring();
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| 204 | return *this;
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| 205 | }
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| 206 |
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| 207 | SourceStream& SourceStream::operator<<(const Node* n)
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| 208 | {
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| 209 | bool needParens = (m_precedence != PrecExpression && n->precedence() > m_precedence) || (m_atStartOfStatement && n->needsParensIfLeftmost());
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| 210 | m_precedence = PrecExpression;
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| 211 | if (!n)
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| 212 | return *this;
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| 213 | if (needParens) {
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| 214 | m_numberNeedsParens = false;
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| 215 | m_string.append('(');
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| 216 | }
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| 217 | n->streamTo(*this);
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| 218 | if (needParens)
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| 219 | m_string.append(')');
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| 220 | return *this;
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| 221 | }
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| 222 |
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| 223 | SourceStream& SourceStream::operator<<(EndlType)
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| 224 | {
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| 225 | m_numberNeedsParens = false;
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| 226 | m_atStartOfStatement = true;
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| 227 | m_string.append('\n');
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| 228 | m_string.append(m_spacesForIndentation);
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| 229 | return *this;
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| 230 | }
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| 231 |
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| 232 | SourceStream& SourceStream::operator<<(IndentType)
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| 233 | {
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| 234 | m_numberNeedsParens = false;
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| 235 | m_atStartOfStatement = false;
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| 236 | m_spacesForIndentation += " ";
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| 237 | return *this;
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| 238 | }
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| 239 |
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| 240 | SourceStream& SourceStream::operator<<(UnindentType)
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| 241 | {
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| 242 | m_numberNeedsParens = false;
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| 243 | m_atStartOfStatement = false;
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| 244 | m_spacesForIndentation = m_spacesForIndentation.substr(0, m_spacesForIndentation.size() - 2);
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| 245 | return *this;
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| 246 | }
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| 247 |
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| 248 | inline SourceStream& SourceStream::operator<<(DotExprType)
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| 249 | {
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| 250 | m_numberNeedsParens = true;
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| 251 | return *this;
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| 252 | }
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| 253 |
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| 254 | inline SourceStream& SourceStream::operator<<(Precedence precedence)
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| 255 | {
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| 256 | m_precedence = precedence;
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| 257 | return *this;
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| 258 | }
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| 259 |
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| 260 | static void streamLeftAssociativeBinaryOperator(SourceStream& s, Precedence precedence,
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| 261 | const char* operatorString, const Node* left, const Node* right)
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| 262 | {
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| 263 | s << precedence << left
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| 264 | << ' ' << operatorString << ' '
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| 265 | << static_cast<Precedence>(precedence - 1) << right;
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| 266 | }
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| 267 |
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| 268 | template <typename T> static inline void streamLeftAssociativeBinaryOperator(SourceStream& s,
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| 269 | Precedence p, const char* o, const RefPtr<T>& l, const RefPtr<T>& r)
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| 270 | {
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| 271 | streamLeftAssociativeBinaryOperator(s, p, o, l.get(), r.get());
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| 272 | }
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| 273 |
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| 274 | static inline void bracketNodeStreamTo(SourceStream& s, const RefPtr<ExpressionNode>& base, const RefPtr<ExpressionNode>& subscript)
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| 275 | {
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| 276 | s << PrecCall << base.get() << "[" << subscript.get() << "]";
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| 277 | }
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| 278 |
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| 279 | static inline void dotNodeStreamTo(SourceStream& s, const RefPtr<ExpressionNode>& base, const Identifier& ident)
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| 280 | {
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| 281 | s << DotExpr << PrecCall << base.get() << "." << ident;
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| 282 | }
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| 283 |
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| 284 | // --------
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| 285 |
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| 286 | UString Node::toString() const
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| 287 | {
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| 288 | SourceStream stream;
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| 289 | streamTo(stream);
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| 290 | return stream.toString();
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| 291 | }
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| 292 |
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| 293 | // --------
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| 294 |
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| 295 | void NullNode::streamTo(SourceStream& s) const
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| 296 | {
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| 297 | s << "null";
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| 298 | }
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| 299 |
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| 300 | void FalseNode::streamTo(SourceStream& s) const
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| 301 | {
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| 302 | s << "false";
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| 303 | }
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| 304 |
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| 305 | void TrueNode::streamTo(SourceStream& s) const
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| 306 | {
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| 307 | s << "true";
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| 308 | }
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| 309 |
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| 310 | void PlaceholderTrueNode::streamTo(SourceStream&) const
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| 311 | {
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| 312 | }
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| 313 |
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| 314 | void NumberNode::streamTo(SourceStream& s) const
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| 315 | {
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| 316 | s << value();
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| 317 | }
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| 318 |
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| 319 | void StringNode::streamTo(SourceStream& s) const
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| 320 | {
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| 321 | s << '"' << escapeStringForPrettyPrinting(m_value) << '"';
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| 322 | }
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| 323 |
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| 324 | void RegExpNode::streamTo(SourceStream& s) const
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| 325 | {
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| 326 | s << '/' << m_regExp->pattern() << '/' << m_regExp->flags();
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| 327 | }
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| 328 |
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| 329 | void ThisNode::streamTo(SourceStream& s) const
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| 330 | {
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| 331 | s << "this";
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| 332 | }
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| 333 |
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| 334 | void ResolveNode::streamTo(SourceStream& s) const
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| 335 | {
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| 336 | s << m_ident;
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| 337 | }
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| 338 |
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| 339 | void ElementNode::streamTo(SourceStream& s) const
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| 340 | {
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| 341 | for (const ElementNode* n = this; n; n = n->m_next.get()) {
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| 342 | for (int i = 0; i < n->m_elision; i++)
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| 343 | s << ',';
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| 344 | s << PrecAssignment << n->m_node;
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| 345 | if (n->m_next)
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| 346 | s << ',';
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| 347 | }
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| 348 | }
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| 349 |
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| 350 | void ArrayNode::streamTo(SourceStream& s) const
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| 351 | {
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| 352 | s << '[' << m_element;
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| 353 | for (int i = 0; i < m_elision; i++)
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| 354 | s << ',';
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| 355 | // Parser consumes one elision comma if there's array elements
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| 356 | // present in the expression.
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| 357 | if (m_optional && m_element)
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| 358 | s << ',';
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| 359 | s << ']';
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| 360 | }
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| 361 |
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| 362 | void ObjectLiteralNode::streamTo(SourceStream& s) const
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| 363 | {
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| 364 | if (m_list)
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| 365 | s << "{ " << m_list << " }";
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| 366 | else
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| 367 | s << "{ }";
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| 368 | }
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| 369 |
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| 370 | void PropertyListNode::streamTo(SourceStream& s) const
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| 371 | {
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| 372 | s << m_node;
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| 373 | for (const PropertyListNode* n = m_next.get(); n; n = n->m_next.get())
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| 374 | s << ", " << n->m_node;
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| 375 | }
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| 376 |
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| 377 | void PropertyNode::streamTo(SourceStream& s) const
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| 378 | {
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| 379 | switch (m_type) {
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| 380 | case Constant: {
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| 381 | UString propertyName = name().ustring();
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| 382 | if (isParserRoundTripNumber(propertyName))
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| 383 | s << propertyName;
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| 384 | else
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| 385 | s << '"' << escapeStringForPrettyPrinting(propertyName) << '"';
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| 386 | s << ": " << PrecAssignment << m_assign;
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| 387 | break;
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| 388 | }
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| 389 | case Getter:
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| 390 | case Setter: {
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| 391 | const FuncExprNode* func = static_cast<const FuncExprNode*>(m_assign.get());
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| 392 | if (m_type == Getter)
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| 393 | s << "get ";
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| 394 | else
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| 395 | s << "set ";
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| 396 | s << escapeStringForPrettyPrinting(name().ustring())
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| 397 | << "(" << func->m_parameter << ')' << func->m_body;
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| 398 | break;
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| 399 | }
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| 400 | }
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| 401 | }
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| 402 |
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| 403 | void BracketAccessorNode::streamTo(SourceStream& s) const
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| 404 | {
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| 405 | bracketNodeStreamTo(s, m_base, m_subscript);
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| 406 | }
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| 407 |
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| 408 | void DotAccessorNode::streamTo(SourceStream& s) const
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| 409 | {
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| 410 | dotNodeStreamTo(s, m_base, m_ident);
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| 411 | }
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| 412 |
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| 413 | void ArgumentListNode::streamTo(SourceStream& s) const
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| 414 | {
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| 415 | s << PrecAssignment << m_expr;
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| 416 | for (ArgumentListNode* n = m_next.get(); n; n = n->m_next.get())
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| 417 | s << ", " << PrecAssignment << n->m_expr;
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| 418 | }
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| 419 |
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| 420 | void ArgumentsNode::streamTo(SourceStream& s) const
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| 421 | {
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| 422 | s << '(' << m_listNode << ')';
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| 423 | }
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| 424 |
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| 425 | void NewExprNode::streamTo(SourceStream& s) const
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| 426 | {
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| 427 | s << "new " << PrecMember << m_expr << m_args;
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| 428 | }
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| 429 |
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| 430 | void EvalFunctionCallNode::streamTo(SourceStream& s) const
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| 431 | {
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| 432 | s << "eval" << m_args;
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| 433 | }
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| 434 |
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| 435 | void FunctionCallValueNode::streamTo(SourceStream& s) const
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| 436 | {
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| 437 | s << PrecCall << m_expr << m_args;
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| 438 | }
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| 439 |
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| 440 | void FunctionCallResolveNode::streamTo(SourceStream& s) const
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| 441 | {
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| 442 | s << m_ident << m_args;
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| 443 | }
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| 444 |
|
|---|
| 445 | void FunctionCallBracketNode::streamTo(SourceStream& s) const
|
|---|
| 446 | {
|
|---|
| 447 | bracketNodeStreamTo(s, m_base, m_subscript);
|
|---|
| 448 | s << m_args;
|
|---|
| 449 | }
|
|---|
| 450 |
|
|---|
| 451 | void FunctionCallDotNode::streamTo(SourceStream& s) const
|
|---|
| 452 | {
|
|---|
| 453 | dotNodeStreamTo(s, m_base, m_ident);
|
|---|
| 454 | s << m_args;
|
|---|
| 455 | }
|
|---|
| 456 |
|
|---|
| 457 | void PostIncResolveNode::streamTo(SourceStream& s) const
|
|---|
| 458 | {
|
|---|
| 459 | s << m_ident << "++";
|
|---|
| 460 | }
|
|---|
| 461 |
|
|---|
| 462 | void PostDecResolveNode::streamTo(SourceStream& s) const
|
|---|
| 463 | {
|
|---|
| 464 | s << m_ident << "--";
|
|---|
| 465 | }
|
|---|
| 466 |
|
|---|
| 467 | void PostIncBracketNode::streamTo(SourceStream& s) const
|
|---|
| 468 | {
|
|---|
| 469 | bracketNodeStreamTo(s, m_base, m_subscript);
|
|---|
| 470 | s << "++";
|
|---|
| 471 | }
|
|---|
| 472 |
|
|---|
| 473 | void PostDecBracketNode::streamTo(SourceStream& s) const
|
|---|
| 474 | {
|
|---|
| 475 | bracketNodeStreamTo(s, m_base, m_subscript);
|
|---|
| 476 | s << "--";
|
|---|
| 477 | }
|
|---|
| 478 |
|
|---|
| 479 | void PostIncDotNode::streamTo(SourceStream& s) const
|
|---|
| 480 | {
|
|---|
| 481 | dotNodeStreamTo(s, m_base, m_ident);
|
|---|
| 482 | s << "++";
|
|---|
| 483 | }
|
|---|
| 484 |
|
|---|
| 485 | void PostDecDotNode::streamTo(SourceStream& s) const
|
|---|
| 486 | {
|
|---|
| 487 | dotNodeStreamTo(s, m_base, m_ident);
|
|---|
| 488 | s << "--";
|
|---|
| 489 | }
|
|---|
| 490 |
|
|---|
| 491 | void PostfixErrorNode::streamTo(SourceStream& s) const
|
|---|
| 492 | {
|
|---|
| 493 | s << PrecLeftHandSide << m_expr;
|
|---|
| 494 | if (m_operator == OpPlusPlus)
|
|---|
| 495 | s << "++";
|
|---|
| 496 | else
|
|---|
| 497 | s << "--";
|
|---|
| 498 | }
|
|---|
| 499 |
|
|---|
| 500 | void DeleteResolveNode::streamTo(SourceStream& s) const
|
|---|
| 501 | {
|
|---|
| 502 | s << "delete " << m_ident;
|
|---|
| 503 | }
|
|---|
| 504 |
|
|---|
| 505 | void DeleteBracketNode::streamTo(SourceStream& s) const
|
|---|
| 506 | {
|
|---|
| 507 | s << "delete ";
|
|---|
| 508 | bracketNodeStreamTo(s, m_base, m_subscript);
|
|---|
| 509 | }
|
|---|
| 510 |
|
|---|
| 511 | void DeleteDotNode::streamTo(SourceStream& s) const
|
|---|
| 512 | {
|
|---|
| 513 | s << "delete ";
|
|---|
| 514 | dotNodeStreamTo(s, m_base, m_ident);
|
|---|
| 515 | }
|
|---|
| 516 |
|
|---|
| 517 | void DeleteValueNode::streamTo(SourceStream& s) const
|
|---|
| 518 | {
|
|---|
| 519 | s << "delete " << PrecUnary << m_expr;
|
|---|
| 520 | }
|
|---|
| 521 |
|
|---|
| 522 | void VoidNode::streamTo(SourceStream& s) const
|
|---|
| 523 | {
|
|---|
| 524 | s << "void " << PrecUnary << m_expr;
|
|---|
| 525 | }
|
|---|
| 526 |
|
|---|
| 527 | void TypeOfValueNode::streamTo(SourceStream& s) const
|
|---|
| 528 | {
|
|---|
| 529 | s << "typeof " << PrecUnary << m_expr;
|
|---|
| 530 | }
|
|---|
| 531 |
|
|---|
| 532 | void TypeOfResolveNode::streamTo(SourceStream& s) const
|
|---|
| 533 | {
|
|---|
| 534 | s << "typeof " << m_ident;
|
|---|
| 535 | }
|
|---|
| 536 |
|
|---|
| 537 | void PreIncResolveNode::streamTo(SourceStream& s) const
|
|---|
| 538 | {
|
|---|
| 539 | s << "++" << m_ident;
|
|---|
| 540 | }
|
|---|
| 541 |
|
|---|
| 542 | void PreDecResolveNode::streamTo(SourceStream& s) const
|
|---|
| 543 | {
|
|---|
| 544 | s << "--" << m_ident;
|
|---|
| 545 | }
|
|---|
| 546 |
|
|---|
| 547 | void PreIncBracketNode::streamTo(SourceStream& s) const
|
|---|
| 548 | {
|
|---|
| 549 | s << "++";
|
|---|
| 550 | bracketNodeStreamTo(s, m_base, m_subscript);
|
|---|
| 551 | }
|
|---|
| 552 |
|
|---|
| 553 | void PreDecBracketNode::streamTo(SourceStream& s) const
|
|---|
| 554 | {
|
|---|
| 555 | s << "--";
|
|---|
| 556 | bracketNodeStreamTo(s, m_base, m_subscript);
|
|---|
| 557 | }
|
|---|
| 558 |
|
|---|
| 559 | void PreIncDotNode::streamTo(SourceStream& s) const
|
|---|
| 560 | {
|
|---|
| 561 | s << "++";
|
|---|
| 562 | dotNodeStreamTo(s, m_base, m_ident);
|
|---|
| 563 | }
|
|---|
| 564 |
|
|---|
| 565 | void PreDecDotNode::streamTo(SourceStream& s) const
|
|---|
| 566 | {
|
|---|
| 567 | s << "--";
|
|---|
| 568 | dotNodeStreamTo(s, m_base, m_ident);
|
|---|
| 569 | }
|
|---|
| 570 |
|
|---|
| 571 | void PrefixErrorNode::streamTo(SourceStream& s) const
|
|---|
| 572 | {
|
|---|
| 573 | if (m_operator == OpPlusPlus)
|
|---|
| 574 | s << "++" << PrecUnary << m_expr;
|
|---|
| 575 | else
|
|---|
| 576 | s << "--" << PrecUnary << m_expr;
|
|---|
| 577 | }
|
|---|
| 578 |
|
|---|
| 579 | void UnaryPlusNode::streamTo(SourceStream& s) const
|
|---|
| 580 | {
|
|---|
| 581 | s << "+ " << PrecUnary << m_expr;
|
|---|
| 582 | }
|
|---|
| 583 |
|
|---|
| 584 | void NegateNode::streamTo(SourceStream& s) const
|
|---|
| 585 | {
|
|---|
| 586 | s << "- " << PrecUnary << m_expr;
|
|---|
| 587 | }
|
|---|
| 588 |
|
|---|
| 589 | void BitwiseNotNode::streamTo(SourceStream& s) const
|
|---|
| 590 | {
|
|---|
| 591 | s << "~" << PrecUnary << m_expr;
|
|---|
| 592 | }
|
|---|
| 593 |
|
|---|
| 594 | void LogicalNotNode::streamTo(SourceStream& s) const
|
|---|
| 595 | {
|
|---|
| 596 | s << "!" << PrecUnary << m_expr;
|
|---|
| 597 | }
|
|---|
| 598 |
|
|---|
| 599 | void MultNode::streamTo(SourceStream& s) const
|
|---|
| 600 | {
|
|---|
| 601 | streamLeftAssociativeBinaryOperator(s, precedence(), "*", m_term1, m_term2);
|
|---|
| 602 | }
|
|---|
| 603 |
|
|---|
| 604 | void DivNode::streamTo(SourceStream& s) const
|
|---|
| 605 | {
|
|---|
| 606 | streamLeftAssociativeBinaryOperator(s, precedence(), "/", m_term1, m_term2);
|
|---|
| 607 | }
|
|---|
| 608 |
|
|---|
| 609 | void ModNode::streamTo(SourceStream& s) const
|
|---|
| 610 | {
|
|---|
| 611 | streamLeftAssociativeBinaryOperator(s, precedence(), "%", m_term1, m_term2);
|
|---|
| 612 | }
|
|---|
| 613 |
|
|---|
| 614 | void AddNode::streamTo(SourceStream& s) const
|
|---|
| 615 | {
|
|---|
| 616 | streamLeftAssociativeBinaryOperator(s, precedence(), "+", m_term1, m_term2);
|
|---|
| 617 | }
|
|---|
| 618 |
|
|---|
| 619 | void SubNode::streamTo(SourceStream& s) const
|
|---|
| 620 | {
|
|---|
| 621 | streamLeftAssociativeBinaryOperator(s, precedence(), "-", m_term1, m_term2);
|
|---|
| 622 | }
|
|---|
| 623 |
|
|---|
| 624 | void LeftShiftNode::streamTo(SourceStream& s) const
|
|---|
| 625 | {
|
|---|
| 626 | streamLeftAssociativeBinaryOperator(s, precedence(), "<<", m_term1, m_term2);
|
|---|
| 627 | }
|
|---|
| 628 |
|
|---|
| 629 | void RightShiftNode::streamTo(SourceStream& s) const
|
|---|
| 630 | {
|
|---|
| 631 | streamLeftAssociativeBinaryOperator(s, precedence(), ">>", m_term1, m_term2);
|
|---|
| 632 | }
|
|---|
| 633 |
|
|---|
| 634 | void UnsignedRightShiftNode::streamTo(SourceStream& s) const
|
|---|
| 635 | {
|
|---|
| 636 | streamLeftAssociativeBinaryOperator(s, precedence(), ">>>", m_term1, m_term2);
|
|---|
| 637 | }
|
|---|
| 638 |
|
|---|
| 639 | void LessNode::streamTo(SourceStream& s) const
|
|---|
| 640 | {
|
|---|
| 641 | streamLeftAssociativeBinaryOperator(s, precedence(), "<", m_expr1, m_expr2);
|
|---|
| 642 | }
|
|---|
| 643 |
|
|---|
| 644 | void GreaterNode::streamTo(SourceStream& s) const
|
|---|
| 645 | {
|
|---|
| 646 | streamLeftAssociativeBinaryOperator(s, precedence(), ">", m_expr1, m_expr2);
|
|---|
| 647 | }
|
|---|
| 648 |
|
|---|
| 649 | void LessEqNode::streamTo(SourceStream& s) const
|
|---|
| 650 | {
|
|---|
| 651 | streamLeftAssociativeBinaryOperator(s, precedence(), "<=", m_expr1, m_expr2);
|
|---|
| 652 | }
|
|---|
| 653 |
|
|---|
| 654 | void GreaterEqNode::streamTo(SourceStream& s) const
|
|---|
| 655 | {
|
|---|
| 656 | streamLeftAssociativeBinaryOperator(s, precedence(), ">=", m_expr1, m_expr2);
|
|---|
| 657 | }
|
|---|
| 658 |
|
|---|
| 659 | void InstanceOfNode::streamTo(SourceStream& s) const
|
|---|
| 660 | {
|
|---|
| 661 | streamLeftAssociativeBinaryOperator(s, precedence(), "instanceof", m_expr1, m_expr2);
|
|---|
| 662 | }
|
|---|
| 663 |
|
|---|
| 664 | void InNode::streamTo(SourceStream& s) const
|
|---|
| 665 | {
|
|---|
| 666 | streamLeftAssociativeBinaryOperator(s, precedence(), "in", m_expr1, m_expr2);
|
|---|
| 667 | }
|
|---|
| 668 |
|
|---|
| 669 | void EqualNode::streamTo(SourceStream& s) const
|
|---|
| 670 | {
|
|---|
| 671 | streamLeftAssociativeBinaryOperator(s, precedence(), "==", m_expr1, m_expr2);
|
|---|
| 672 | }
|
|---|
| 673 |
|
|---|
| 674 | void NotEqualNode::streamTo(SourceStream& s) const
|
|---|
| 675 | {
|
|---|
| 676 | streamLeftAssociativeBinaryOperator(s, precedence(), "!=", m_expr1, m_expr2);
|
|---|
| 677 | }
|
|---|
| 678 |
|
|---|
| 679 | void StrictEqualNode::streamTo(SourceStream& s) const
|
|---|
| 680 | {
|
|---|
| 681 | streamLeftAssociativeBinaryOperator(s, precedence(), "===", m_expr1, m_expr2);
|
|---|
| 682 | }
|
|---|
| 683 |
|
|---|
| 684 | void NotStrictEqualNode::streamTo(SourceStream& s) const
|
|---|
| 685 | {
|
|---|
| 686 | streamLeftAssociativeBinaryOperator(s, precedence(), "!==", m_expr1, m_expr2);
|
|---|
| 687 | }
|
|---|
| 688 |
|
|---|
| 689 | void BitAndNode::streamTo(SourceStream& s) const
|
|---|
| 690 | {
|
|---|
| 691 | streamLeftAssociativeBinaryOperator(s, precedence(), "&", m_expr1, m_expr2);
|
|---|
| 692 | }
|
|---|
| 693 |
|
|---|
| 694 | void BitXOrNode::streamTo(SourceStream& s) const
|
|---|
| 695 | {
|
|---|
| 696 | streamLeftAssociativeBinaryOperator(s, precedence(), "^", m_expr1, m_expr2);
|
|---|
| 697 | }
|
|---|
| 698 |
|
|---|
| 699 | void BitOrNode::streamTo(SourceStream& s) const
|
|---|
| 700 | {
|
|---|
| 701 | streamLeftAssociativeBinaryOperator(s, precedence(), "|", m_expr1, m_expr2);
|
|---|
| 702 | }
|
|---|
| 703 |
|
|---|
| 704 | void LogicalAndNode::streamTo(SourceStream& s) const
|
|---|
| 705 | {
|
|---|
| 706 | streamLeftAssociativeBinaryOperator(s, precedence(), "&&", m_expr1, m_expr2);
|
|---|
| 707 | }
|
|---|
| 708 |
|
|---|
| 709 | void LogicalOrNode::streamTo(SourceStream& s) const
|
|---|
| 710 | {
|
|---|
| 711 | streamLeftAssociativeBinaryOperator(s, precedence(), "||", m_expr1, m_expr2);
|
|---|
| 712 | }
|
|---|
| 713 |
|
|---|
| 714 | void ConditionalNode::streamTo(SourceStream& s) const
|
|---|
| 715 | {
|
|---|
| 716 | s << PrecLogicalOr << m_logical
|
|---|
| 717 | << " ? " << PrecAssignment << m_expr1
|
|---|
| 718 | << " : " << PrecAssignment << m_expr2;
|
|---|
| 719 | }
|
|---|
| 720 |
|
|---|
| 721 | void ReadModifyResolveNode::streamTo(SourceStream& s) const
|
|---|
| 722 | {
|
|---|
| 723 | s << m_ident << ' ' << operatorString(m_operator) << ' ' << PrecAssignment << m_right;
|
|---|
| 724 | }
|
|---|
| 725 |
|
|---|
| 726 | void AssignResolveNode::streamTo(SourceStream& s) const
|
|---|
| 727 | {
|
|---|
| 728 | s << m_ident << " = " << PrecAssignment << m_right;
|
|---|
| 729 | }
|
|---|
| 730 |
|
|---|
| 731 | void ReadModifyBracketNode::streamTo(SourceStream& s) const
|
|---|
| 732 | {
|
|---|
| 733 | bracketNodeStreamTo(s, m_base, m_subscript);
|
|---|
| 734 | s << ' ' << operatorString(m_operator) << ' ' << PrecAssignment << m_right;
|
|---|
| 735 | }
|
|---|
| 736 |
|
|---|
| 737 | void AssignBracketNode::streamTo(SourceStream& s) const
|
|---|
| 738 | {
|
|---|
| 739 | bracketNodeStreamTo(s, m_base, m_subscript);
|
|---|
| 740 | s << " = " << PrecAssignment << m_right;
|
|---|
| 741 | }
|
|---|
| 742 |
|
|---|
| 743 | void ReadModifyDotNode::streamTo(SourceStream& s) const
|
|---|
| 744 | {
|
|---|
| 745 | dotNodeStreamTo(s, m_base, m_ident);
|
|---|
| 746 | s << ' ' << operatorString(m_operator) << ' ' << PrecAssignment << m_right;
|
|---|
| 747 | }
|
|---|
| 748 |
|
|---|
| 749 | void AssignDotNode::streamTo(SourceStream& s) const
|
|---|
| 750 | {
|
|---|
| 751 | dotNodeStreamTo(s, m_base, m_ident);
|
|---|
| 752 | s << " = " << PrecAssignment << m_right;
|
|---|
| 753 | }
|
|---|
| 754 |
|
|---|
| 755 | void AssignErrorNode::streamTo(SourceStream& s) const
|
|---|
| 756 | {
|
|---|
| 757 | s << PrecLeftHandSide << m_left << ' '
|
|---|
| 758 | << operatorString(m_operator) << ' ' << PrecAssignment << m_right;
|
|---|
| 759 | }
|
|---|
| 760 |
|
|---|
| 761 | void CommaNode::streamTo(SourceStream& s) const
|
|---|
| 762 | {
|
|---|
| 763 | s << PrecAssignment << m_expr1 << ", " << PrecAssignment << m_expr2;
|
|---|
| 764 | }
|
|---|
| 765 |
|
|---|
| 766 | void ConstDeclNode::streamTo(SourceStream& s) const
|
|---|
| 767 | {
|
|---|
| 768 | s << m_ident;
|
|---|
| 769 | if (m_init)
|
|---|
| 770 | s << " = " << PrecAssignment << m_init;
|
|---|
| 771 | for (ConstDeclNode* n = m_next.get(); n; n = n->m_next.get()) {
|
|---|
| 772 | s << ", " << n->m_ident;
|
|---|
| 773 | if (m_init)
|
|---|
| 774 | s << " = " << PrecAssignment << n->m_init;
|
|---|
| 775 | }
|
|---|
| 776 | }
|
|---|
| 777 |
|
|---|
| 778 | void ConstStatementNode::streamTo(SourceStream& s) const
|
|---|
| 779 | {
|
|---|
| 780 | s << Endl << "const " << m_next << ';';
|
|---|
| 781 | }
|
|---|
| 782 |
|
|---|
| 783 | static inline void statementListStreamTo(const Vector<RefPtr<StatementNode> >& nodes, SourceStream& s)
|
|---|
| 784 | {
|
|---|
| 785 | for (Vector<RefPtr<StatementNode> >::const_iterator ptr = nodes.begin(); ptr != nodes.end(); ptr++)
|
|---|
| 786 | s << *ptr;
|
|---|
| 787 | }
|
|---|
| 788 |
|
|---|
| 789 | void BlockNode::streamTo(SourceStream& s) const
|
|---|
| 790 | {
|
|---|
| 791 | s << Endl << "{" << Indent;
|
|---|
| 792 | statementListStreamTo(m_children, s);
|
|---|
| 793 | s << Unindent << Endl << "}";
|
|---|
| 794 | }
|
|---|
| 795 |
|
|---|
| 796 | void ScopeNode::streamTo(SourceStream& s) const
|
|---|
| 797 | {
|
|---|
| 798 | s << Endl << "{" << Indent;
|
|---|
| 799 |
|
|---|
| 800 | bool printedVar = false;
|
|---|
| 801 | for (size_t i = 0; i < m_varStack.size(); ++i) {
|
|---|
| 802 | if (m_varStack[i].second == 0) {
|
|---|
| 803 | if (!printedVar) {
|
|---|
| 804 | s << Endl << "var ";
|
|---|
| 805 | printedVar = true;
|
|---|
| 806 | } else
|
|---|
| 807 | s << ", ";
|
|---|
| 808 | s << m_varStack[i].first;
|
|---|
| 809 | }
|
|---|
| 810 | }
|
|---|
| 811 | if (printedVar)
|
|---|
| 812 | s << ';';
|
|---|
| 813 |
|
|---|
| 814 | statementListStreamTo(m_children, s);
|
|---|
| 815 | s << Unindent << Endl << "}";
|
|---|
| 816 | }
|
|---|
| 817 |
|
|---|
| 818 | void EmptyStatementNode::streamTo(SourceStream& s) const
|
|---|
| 819 | {
|
|---|
| 820 | s << Endl << ';';
|
|---|
| 821 | }
|
|---|
| 822 |
|
|---|
| 823 | void ExprStatementNode::streamTo(SourceStream& s) const
|
|---|
| 824 | {
|
|---|
| 825 | s << Endl << m_expr << ';';
|
|---|
| 826 | }
|
|---|
| 827 |
|
|---|
| 828 | void VarStatementNode::streamTo(SourceStream& s) const
|
|---|
| 829 | {
|
|---|
| 830 | s << Endl << "var " << m_expr << ';';
|
|---|
| 831 | }
|
|---|
| 832 |
|
|---|
| 833 | void IfNode::streamTo(SourceStream& s) const
|
|---|
| 834 | {
|
|---|
| 835 | s << Endl << "if (" << m_condition << ')' << Indent << m_ifBlock << Unindent;
|
|---|
| 836 | }
|
|---|
| 837 |
|
|---|
| 838 | void IfElseNode::streamTo(SourceStream& s) const
|
|---|
| 839 | {
|
|---|
| 840 | IfNode::streamTo(s);
|
|---|
| 841 | s << Endl << "else" << Indent << m_elseBlock << Unindent;
|
|---|
| 842 | }
|
|---|
| 843 |
|
|---|
| 844 | void DoWhileNode::streamTo(SourceStream& s) const
|
|---|
| 845 | {
|
|---|
| 846 | s << Endl << "do " << Indent << m_statement << Unindent << Endl
|
|---|
| 847 | << "while (" << m_expr << ");";
|
|---|
| 848 | }
|
|---|
| 849 |
|
|---|
| 850 | void WhileNode::streamTo(SourceStream& s) const
|
|---|
| 851 | {
|
|---|
| 852 | s << Endl << "while (" << m_expr << ')' << Indent << m_statement << Unindent;
|
|---|
| 853 | }
|
|---|
| 854 |
|
|---|
| 855 | void ForNode::streamTo(SourceStream& s) const
|
|---|
| 856 | {
|
|---|
| 857 | s << Endl << "for ("
|
|---|
| 858 | << (m_expr1WasVarDecl ? "var " : "")
|
|---|
| 859 | << m_expr1
|
|---|
| 860 | << "; " << m_expr2
|
|---|
| 861 | << "; " << m_expr3
|
|---|
| 862 | << ')' << Indent << m_statement << Unindent;
|
|---|
| 863 | }
|
|---|
| 864 |
|
|---|
| 865 | void ForInNode::streamTo(SourceStream& s) const
|
|---|
| 866 | {
|
|---|
| 867 | s << Endl << "for (";
|
|---|
| 868 | if (m_identIsVarDecl) {
|
|---|
| 869 | s << "var ";
|
|---|
| 870 | if (m_init)
|
|---|
| 871 | s << m_init;
|
|---|
| 872 | else
|
|---|
| 873 | s << PrecLeftHandSide << m_lexpr;
|
|---|
| 874 | } else
|
|---|
| 875 | s << PrecLeftHandSide << m_lexpr;
|
|---|
| 876 |
|
|---|
| 877 | s << " in " << m_expr << ')' << Indent << m_statement << Unindent;
|
|---|
| 878 | }
|
|---|
| 879 |
|
|---|
| 880 | void ContinueNode::streamTo(SourceStream& s) const
|
|---|
| 881 | {
|
|---|
| 882 | s << Endl << "continue";
|
|---|
| 883 | if (!m_ident.isNull())
|
|---|
| 884 | s << ' ' << m_ident;
|
|---|
| 885 | s << ';';
|
|---|
| 886 | }
|
|---|
| 887 |
|
|---|
| 888 | void BreakNode::streamTo(SourceStream& s) const
|
|---|
| 889 | {
|
|---|
| 890 | s << Endl << "break";
|
|---|
| 891 | if (!m_ident.isNull())
|
|---|
| 892 | s << ' ' << m_ident;
|
|---|
| 893 | s << ';';
|
|---|
| 894 | }
|
|---|
| 895 |
|
|---|
| 896 | void ReturnNode::streamTo(SourceStream& s) const
|
|---|
| 897 | {
|
|---|
| 898 | s << Endl << "return";
|
|---|
| 899 | if (m_value)
|
|---|
| 900 | s << ' ' << m_value;
|
|---|
| 901 | s << ';';
|
|---|
| 902 | }
|
|---|
| 903 |
|
|---|
| 904 | void WithNode::streamTo(SourceStream& s) const
|
|---|
| 905 | {
|
|---|
| 906 | s << Endl << "with (" << m_expr << ") " << m_statement;
|
|---|
| 907 | }
|
|---|
| 908 |
|
|---|
| 909 | void CaseClauseNode::streamTo(SourceStream& s) const
|
|---|
| 910 | {
|
|---|
| 911 | s << Endl;
|
|---|
| 912 | if (m_expr)
|
|---|
| 913 | s << "case " << m_expr;
|
|---|
| 914 | else
|
|---|
| 915 | s << "default";
|
|---|
| 916 | s << ":" << Indent;
|
|---|
| 917 | statementListStreamTo(m_children, s);
|
|---|
| 918 | s << Unindent;
|
|---|
| 919 | }
|
|---|
| 920 |
|
|---|
| 921 | void ClauseListNode::streamTo(SourceStream& s) const
|
|---|
| 922 | {
|
|---|
| 923 | for (const ClauseListNode* n = this; n; n = n->getNext())
|
|---|
| 924 | s << n->getClause();
|
|---|
| 925 | }
|
|---|
| 926 |
|
|---|
| 927 | void CaseBlockNode::streamTo(SourceStream& s) const
|
|---|
| 928 | {
|
|---|
| 929 | for (const ClauseListNode* n = m_list1.get(); n; n = n->getNext())
|
|---|
| 930 | s << n->getClause();
|
|---|
| 931 | s << m_defaultClause;
|
|---|
| 932 | for (const ClauseListNode* n = m_list2.get(); n; n = n->getNext())
|
|---|
| 933 | s << n->getClause();
|
|---|
| 934 | }
|
|---|
| 935 |
|
|---|
| 936 | void SwitchNode::streamTo(SourceStream& s) const
|
|---|
| 937 | {
|
|---|
| 938 | s << Endl << "switch (" << m_expr << ") {"
|
|---|
| 939 | << Indent << m_block << Unindent
|
|---|
| 940 | << Endl << "}";
|
|---|
| 941 | }
|
|---|
| 942 |
|
|---|
| 943 | void LabelNode::streamTo(SourceStream& s) const
|
|---|
| 944 | {
|
|---|
| 945 | s << Endl << m_label << ":" << Indent << m_statement << Unindent;
|
|---|
| 946 | }
|
|---|
| 947 |
|
|---|
| 948 | void ThrowNode::streamTo(SourceStream& s) const
|
|---|
| 949 | {
|
|---|
| 950 | s << Endl << "throw " << m_expr << ';';
|
|---|
| 951 | }
|
|---|
| 952 |
|
|---|
| 953 | void TryNode::streamTo(SourceStream& s) const
|
|---|
| 954 | {
|
|---|
| 955 | s << Endl << "try " << m_tryBlock;
|
|---|
| 956 | if (m_catchBlock)
|
|---|
| 957 | s << Endl << "catch (" << m_exceptionIdent << ')' << m_catchBlock;
|
|---|
| 958 | if (m_finallyBlock)
|
|---|
| 959 | s << Endl << "finally " << m_finallyBlock;
|
|---|
| 960 | }
|
|---|
| 961 |
|
|---|
| 962 | void ParameterNode::streamTo(SourceStream& s) const
|
|---|
| 963 | {
|
|---|
| 964 | s << m_ident;
|
|---|
| 965 | for (ParameterNode* n = m_next.get(); n; n = n->m_next.get())
|
|---|
| 966 | s << ", " << n->m_ident;
|
|---|
| 967 | }
|
|---|
| 968 |
|
|---|
| 969 | void FuncDeclNode::streamTo(SourceStream& s) const
|
|---|
| 970 | {
|
|---|
| 971 | s << Endl << "function " << m_ident << '(' << m_parameter << ')' << m_body;
|
|---|
| 972 | }
|
|---|
| 973 |
|
|---|
| 974 | void FuncExprNode::streamTo(SourceStream& s) const
|
|---|
| 975 | {
|
|---|
| 976 | s << "function " << m_ident << '(' << m_parameter << ')' << m_body;
|
|---|
| 977 | }
|
|---|
| 978 |
|
|---|
| 979 | } // namespace KJS
|
|---|
