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package com.sun.tools.javafx.api; |
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import com.sun.javafx.api.*; |
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import com.sun.javafx.api.tree.ClassDeclarationTree; |
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import com.sun.javafx.api.tree.JavaFXTreePathScanner; |
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import com.sun.javafx.api.tree.FunctionDefinitionTree; |
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import java.io.IOException; |
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import java.util.Map; |
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import javax.lang.model.element.Element; |
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import javax.lang.model.element.ExecutableElement; |
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import javax.lang.model.element.TypeElement; |
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import javax.lang.model.type.DeclaredType; |
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import javax.lang.model.type.TypeMirror; |
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import javax.tools.JavaFileObject; |
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|
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import com.sun.source.tree.CompilationUnitTree; |
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import com.sun.source.tree.Scope; |
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import com.sun.source.tree.Tree; |
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import com.sun.source.util.SourcePositions; |
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import com.sun.source.util.TreePath; |
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import com.sun.tools.javac.code.Kinds; |
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import com.sun.tools.javac.code.Symbol.ClassSymbol; |
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import com.sun.tools.javac.code.Symbol.TypeSymbol; |
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import com.sun.tools.javac.code.Symbol; |
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import com.sun.tools.javac.code.Symbol.PackageSymbol; |
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import com.sun.tools.javac.comp.Attr; |
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import com.sun.tools.javac.comp.AttrContext; |
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import com.sun.tools.javac.comp.Enter; |
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import com.sun.tools.javac.comp.Env; |
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import com.sun.tools.javac.comp.MemberEnter; |
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import com.sun.tools.javac.comp.Resolve; |
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import com.sun.tools.javac.tree.JCTree.*; |
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import com.sun.tools.javac.tree.JCTree; |
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import com.sun.tools.javac.tree.TreeCopier; |
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import com.sun.tools.javac.tree.TreeInfo; |
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import com.sun.tools.javac.tree.TreeMaker; |
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import com.sun.tools.javac.util.Context; |
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import com.sun.tools.javac.util.List; |
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import com.sun.tools.javac.util.Log; |
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import com.sun.tools.javac.util.Pair; |
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import com.sun.tools.javafx.tree.JavafxTreeInfo; |
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public class JavafxcTrees { |
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|
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private final Resolve resolve; |
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private final Enter enter; |
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private final Log log; |
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private final MemberEnter memberEnter; |
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private final Attr attr; |
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private final TreeMaker treeMaker; |
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private final JavafxcTaskImpl javafxcTaskImpl; |
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|
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public static JavafxcTrees instance(JavafxCompiler.CompilationTask task) { |
86 | 4 | if (!(task instanceof JavafxcTaskImpl)) |
87 | 0 | throw new IllegalArgumentException(); |
88 | 4 | return instance(((JavafxcTaskImpl)task).getContext()); |
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} |
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|
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public static JavafxcTrees instance(Context context) { |
92 | 4 | JavafxcTrees instance = context.get(JavafxcTrees.class); |
93 | 4 | if (instance == null) |
94 | 4 | instance = new JavafxcTrees(context); |
95 | 4 | return instance; |
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} |
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|
98 | 4 | private JavafxcTrees(Context context) { |
99 | 4 | context.put(JavafxcTrees.class, this); |
100 | 4 | attr = Attr.instance(context); |
101 | 4 | enter = Enter.instance(context); |
102 | 4 | log = Log.instance(context); |
103 | 4 | resolve = Resolve.instance(context); |
104 | 4 | treeMaker = TreeMaker.instance(context); |
105 | 4 | memberEnter = MemberEnter.instance(context); |
106 | 4 | javafxcTaskImpl = context.get(JavafxcTaskImpl.class); |
107 | 4 | } |
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|
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public SourcePositions getSourcePositions() { |
110 | 4 | return new SourcePositions() { |
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public long getStartPosition(CompilationUnitTree file, Tree tree) { |
112 | 6 | return JavafxTreeInfo.getStartPos((JCTree) tree); |
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} |
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public long getEndPosition(CompilationUnitTree file, Tree tree) { |
116 | 5 | Map<JCTree,Integer> endPositions = ((JCCompilationUnit) file).endPositions; |
117 | 5 | return JavafxTreeInfo.getEndPos((JCTree) tree, endPositions); |
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} |
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}; |
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} |
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|
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public ClassDeclarationTree getTree(TypeElement element) { |
123 | 0 | return (ClassDeclarationTree) getTree((Element) element); |
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} |
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|
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public FunctionDefinitionTree getTree(ExecutableElement method) { |
127 | 0 | return (FunctionDefinitionTree) getTree((Element) method); |
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} |
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|
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public Tree getTree(Element element) { |
131 | 0 | Symbol symbol = (Symbol) element; |
132 | 0 | TypeSymbol enclosing = symbol.enclClass(); |
133 | 0 | Env<AttrContext> env = enter.getEnv(enclosing); |
134 | 0 | if (env == null) |
135 | 0 | return null; |
136 | 0 | JCClassDecl classNode = env.enclClass; |
137 | 0 | if (classNode != null) { |
138 | 0 | if (JavafxTreeInfo.symbolFor(classNode) == element) |
139 | 0 | return classNode; |
140 | 0 | for (JCTree node : classNode.getMembers()) |
141 | 0 | if (JavafxTreeInfo.symbolFor(node) == element) |
142 | 0 | return node; |
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} |
144 | 0 | return null; |
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} |
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|
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public TreePath getPath(CompilationUnitTree unit, Tree node) { |
148 | 2 | return getPath(new TreePath(unit), node); |
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} |
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|
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public TreePath getPath(Element e) { |
152 | 0 | final Pair<JCTree, JCCompilationUnit> treeTopLevel = getTreeAndTopLevel(e); |
153 | 0 | if (treeTopLevel == null) |
154 | 0 | return null; |
155 | 0 | return getPath(treeTopLevel.snd, treeTopLevel.fst); |
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} |
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public static TreePath getPath(TreePath path, Tree target) { |
163 | 2 | path.getClass(); |
164 | 2 | target.getClass(); |
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|
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class Result extends Error { |
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static final long serialVersionUID = -5942088234594905625L; |
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TreePath path; |
169 | 2 | Result(TreePath path) { |
170 | 2 | this.path = path; |
171 | 2 | } |
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} |
173 | 41 | class PathFinder extends JavaFXTreePathScanner<TreePath,Tree> { |
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public TreePath scan(Tree tree, Tree target) { |
175 | 39 | if (tree == target) |
176 | 2 | throw new Result(new TreePath(getCurrentPath(), target)); |
177 | 37 | return super.scan(tree, target); |
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} |
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} |
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|
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try { |
182 | 2 | new PathFinder().scan(path, target); |
183 | 2 | } catch (Result result) { |
184 | 2 | return result.path; |
185 | 0 | } |
186 | 0 | return null; |
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} |
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|
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public Element getElement(TreePath path) { |
190 | 2 | Tree t = path.getLeaf(); |
191 | 2 | return JavafxTreeInfo.symbolFor((JCTree) t); |
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} |
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public TypeMirror getTypeMirror(TreePath path) { |
195 | 0 | Tree t = path.getLeaf(); |
196 | 0 | return ((JCTree)t).type; |
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} |
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public JavafxcScope getScope(TreePath path) { |
200 | 0 | return new JavafxcScope(getAttrContext(path)); |
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} |
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public boolean isAccessible(Scope scope, TypeElement type) { |
204 | 0 | if (scope instanceof JavafxcScope && type instanceof ClassSymbol) { |
205 | 0 | Env<AttrContext> env = ((JavafxcScope) scope).env; |
206 | 0 | return resolve.isAccessible(env, (ClassSymbol)type); |
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} else |
208 | 0 | return false; |
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} |
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public boolean isAccessible(Scope scope, Element member, DeclaredType type) { |
212 | 0 | if (scope instanceof JavafxcScope |
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&& member instanceof Symbol |
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&& type instanceof com.sun.tools.javac.code.Type) { |
215 | 0 | Env<AttrContext> env = ((JavafxcScope) scope).env; |
216 | 0 | return resolve.isAccessible(env, (com.sun.tools.javac.code.Type)type, (Symbol)member); |
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} else |
218 | 0 | return false; |
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} |
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private Env<AttrContext> getAttrContext(TreePath path) { |
222 | 0 | if (!(path.getLeaf() instanceof JCTree)) |
223 | 0 | throw new IllegalArgumentException(); |
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|
228 | 0 | if (javafxcTaskImpl != null) { |
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try { |
230 | 0 | javafxcTaskImpl.enter(); |
231 | 0 | } catch (IOException e) { |
232 | 0 | throw new Error("unexpected error while entering symbols: " + e); |
233 | 0 | } |
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} |
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|
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|
237 | 0 | JCCompilationUnit unit = (JCCompilationUnit) path.getCompilationUnit(); |
238 | 0 | Copier copier = new Copier(treeMaker.forToplevel(unit)); |
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|
240 | 0 | Env<AttrContext> env = null; |
241 | 0 | JCMethodDecl method = null; |
242 | 0 | JCVariableDecl field = null; |
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|
244 | 0 | List<Tree> l = List.nil(); |
245 | 0 | TreePath p = path; |
246 | 0 | while (p != null) { |
247 | 0 | l = l.prepend(p.getLeaf()); |
248 | 0 | p = p.getParentPath(); |
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} |
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|
251 | 0 | for ( ; l.nonEmpty(); l = l.tail) { |
252 | 0 | Tree tree = l.head; |
253 | 0 | switch (tree.getKind()) { |
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case COMPILATION_UNIT: |
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|
256 | 0 | env = enter.getTopLevelEnv((JCCompilationUnit)tree); |
257 | 0 | break; |
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case CLASS: |
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|
260 | 0 | env = enter.getClassEnv(((JCClassDecl)tree).sym); |
261 | 0 | break; |
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case METHOD: |
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|
264 | 0 | method = (JCMethodDecl)tree; |
265 | 0 | break; |
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case VARIABLE: |
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|
268 | 0 | field = (JCVariableDecl)tree; |
269 | 0 | break; |
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case BLOCK: { |
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|
272 | 0 | if (method != null) |
273 | 0 | env = memberEnter.getMethodEnv(method, env); |
274 | 0 | JCTree body = copier.copy((JCTree)tree, (JCTree) path.getLeaf()); |
275 | 0 | env = attribStatToTree(body, env, copier.leafCopy); |
276 | 0 | return env; |
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} |
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default: |
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|
280 | 0 | if (field != null && field.getInitializer() == tree) { |
281 | 0 | env = memberEnter.getInitEnv(field, env); |
282 | 0 | JCExpression expr = copier.copy((JCExpression)tree, (JCTree) path.getLeaf()); |
283 | 0 | env = attribExprToTree(expr, env, copier.leafCopy); |
284 | 0 | return env; |
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} |
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} |
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} |
288 | 0 | return field != null ? memberEnter.getInitEnv(field, env) : env; |
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} |
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|
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private Env<AttrContext> attribStatToTree(JCTree stat, Env<AttrContext>env, JCTree tree) { |
292 | 0 | JavaFileObject prev = log.useSource(env.toplevel.sourcefile); |
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try { |
294 | 0 | return attr.attribStatToTree(stat, env, tree); |
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} finally { |
296 | 0 | log.useSource(prev); |
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} |
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} |
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|
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private Env<AttrContext> attribExprToTree(JCExpression expr, Env<AttrContext>env, JCTree tree) { |
301 | 0 | JavaFileObject prev = log.useSource(env.toplevel.sourcefile); |
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try { |
303 | 0 | return attr.attribExprToTree(expr, env, tree); |
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} finally { |
305 | 0 | log.useSource(prev); |
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} |
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} |
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|
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private Pair<JCTree, JCCompilationUnit> getTreeAndTopLevel(Element e) { |
310 | 0 | if (e == null) |
311 | 0 | return null; |
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|
313 | 0 | Symbol sym = (Symbol)e; |
314 | 0 | TypeSymbol ts = (sym.kind != Kinds.PCK) |
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? sym.enclClass() |
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: (PackageSymbol) sym; |
317 | 0 | Env<AttrContext> enterEnv = ts != null ? enter.getEnv(ts) : null; |
318 | 0 | if (enterEnv == null) |
319 | 0 | return null; |
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|
321 | 0 | JCTree tree = JavafxTreeInfo.declarationFor(sym, enterEnv.tree); |
322 | 0 | if (tree == null || enterEnv.toplevel == null) |
323 | 0 | return null; |
324 | 0 | return new Pair<JCTree,JCCompilationUnit>(tree, enterEnv.toplevel); |
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} |
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|
330 | 0 | static class Copier extends TreeCopier<JCTree> { |
331 | 0 | JCTree leafCopy = null; |
332 | |
|
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Copier(TreeMaker M) { |
334 | 0 | super(M); |
335 | 0 | } |
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|
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@Override |
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public <T extends JCTree> T copy(T t, JCTree leaf) { |
339 | 0 | T t2 = super.copy(t, leaf); |
340 | 0 | if (t == leaf) |
341 | 0 | leafCopy = t2; |
342 | 0 | return t2; |
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} |
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} |
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} |