Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/comp/Lower.java
src/share/classes/com/sun/tools/javac/comp/Lower.java
- changeset 86
- 3437676858e3
- parent 81
- 8973372aedf8
- child 113
- eff38cc97183
equal
deleted
inserted
replaced
| 83:37470f5ea179 | 86:3437676858e3 |
|---|---|
| 2108 enumDefs.append(make.VarDef(valuesVar, newArray)); | 2108 enumDefs.append(make.VarDef(valuesVar, newArray)); |
| 2109 tree.sym.members().enter(valuesVar); | 2109 tree.sym.members().enter(valuesVar); |
| 2110 | 2110 |
| 2111 Symbol valuesSym = lookupMethod(tree.pos(), names.values, | 2111 Symbol valuesSym = lookupMethod(tree.pos(), names.values, |
| 2112 tree.type, List.<Type>nil()); | 2112 tree.type, List.<Type>nil()); |
| 2113 JCTypeCast valuesResult = | 2113 List<JCStatement> valuesBody; |
| 2114 make.TypeCast(valuesSym.type.getReturnType(), | 2114 if (useClone()) { |
| 2115 make.App(make.Select(make.Ident(valuesVar), | 2115 // return (T[]) $VALUES.clone(); |
| 2116 syms.arrayCloneMethod))); | 2116 JCTypeCast valuesResult = |
| 2117 make.TypeCast(valuesSym.type.getReturnType(), | |
| 2118 make.App(make.Select(make.Ident(valuesVar), | |
| 2119 syms.arrayCloneMethod))); | |
| 2120 valuesBody = List.<JCStatement>of(make.Return(valuesResult)); | |
| 2121 } else { | |
| 2122 // template: T[] $result = new T[$values.length]; | |
| 2123 Name resultName = names.fromString(target.syntheticNameChar() + "result"); | |
| 2124 while (tree.sym.members().lookup(resultName).scope != null) // avoid name clash | |
| 2125 resultName = names.fromString(resultName + "" + target.syntheticNameChar()); | |
| 2126 VarSymbol resultVar = new VarSymbol(FINAL|SYNTHETIC, | |
| 2127 resultName, | |
| 2128 arrayType, | |
| 2129 valuesSym); | |
| 2130 JCNewArray resultArray = make.NewArray(make.Type(types.erasure(tree.type)), | |
| 2131 List.of(make.Select(make.Ident(valuesVar), syms.lengthVar)), | |
| 2132 null); | |
| 2133 resultArray.type = arrayType; | |
| 2134 JCVariableDecl decl = make.VarDef(resultVar, resultArray); | |
| 2135 | |
| 2136 // template: System.arraycopy($VALUES, 0, $result, 0, $VALUES.length); | |
| 2137 if (systemArraycopyMethod == null) { | |
| 2138 systemArraycopyMethod = | |
| 2139 new MethodSymbol(PUBLIC | STATIC, | |
| 2140 names.fromString("arraycopy"), | |
| 2141 new MethodType(List.<Type>of(syms.objectType, | |
| 2142 syms.intType, | |
| 2143 syms.objectType, | |
| 2144 syms.intType, | |
| 2145 syms.intType), | |
| 2146 syms.voidType, | |
| 2147 List.<Type>nil(), | |
| 2148 syms.methodClass), | |
| 2149 syms.systemType.tsym); | |
| 2150 } | |
| 2151 JCStatement copy = | |
| 2152 make.Exec(make.App(make.Select(make.Ident(syms.systemType.tsym), | |
| 2153 systemArraycopyMethod), | |
| 2154 List.of(make.Ident(valuesVar), make.Literal(0), | |
| 2155 make.Ident(resultVar), make.Literal(0), | |
| 2156 make.Select(make.Ident(valuesVar), syms.lengthVar)))); | |
| 2157 | |
| 2158 // template: return $result; | |
| 2159 JCStatement ret = make.Return(make.Ident(resultVar)); | |
| 2160 valuesBody = List.<JCStatement>of(decl, copy, ret); | |
| 2161 } | |
| 2162 | |
| 2117 JCMethodDecl valuesDef = | 2163 JCMethodDecl valuesDef = |
| 2118 make.MethodDef((MethodSymbol)valuesSym, | 2164 make.MethodDef((MethodSymbol)valuesSym, make.Block(0, valuesBody)); |
| 2119 make.Block(0, List.<JCStatement>nil() | 2165 |
| 2120 .prepend(make.Return(valuesResult)))); | |
| 2121 enumDefs.append(valuesDef); | 2166 enumDefs.append(valuesDef); |
| 2167 | |
| 2168 if (debugLower) | |
| 2169 System.err.println(tree.sym + ".valuesDef = " + valuesDef); | |
| 2122 | 2170 |
| 2123 /** The template for the following code is: | 2171 /** The template for the following code is: |
| 2124 * | 2172 * |
| 2125 * public static E valueOf(String name) { | 2173 * public static E valueOf(String name) { |
| 2126 * return (E)Enum.valueOf(E.class, name); | 2174 * return (E)Enum.valueOf(E.class, name); |
| 2153 // Add the necessary members for the EnumCompatibleMode | 2201 // Add the necessary members for the EnumCompatibleMode |
| 2154 if (target.compilerBootstrap(tree.sym)) { | 2202 if (target.compilerBootstrap(tree.sym)) { |
| 2155 addEnumCompatibleMembers(tree); | 2203 addEnumCompatibleMembers(tree); |
| 2156 } | 2204 } |
| 2157 } | 2205 } |
| 2206 // where | |
| 2207 private MethodSymbol systemArraycopyMethod; | |
| 2208 private boolean useClone() { | |
| 2209 try { | |
| 2210 Scope.Entry e = syms.objectType.tsym.members().lookup(names.clone); | |
| 2211 return (e.sym != null); | |
| 2212 } | |
| 2213 catch (CompletionFailure e) { | |
| 2214 return false; | |
| 2215 } | |
| 2216 } | |
| 2158 | 2217 |
| 2159 /** Translate an enumeration constant and its initializer. */ | 2218 /** Translate an enumeration constant and its initializer. */ |
| 2160 private void visitEnumConstantDef(JCVariableDecl var, int ordinal) { | 2219 private void visitEnumConstantDef(JCVariableDecl var, int ordinal) { |
| 2161 JCNewClass varDef = (JCNewClass)var.init; | 2220 JCNewClass varDef = (JCNewClass)var.init; |
| 2162 varDef.args = varDef.args. | 2221 varDef.args = varDef.args. |
