Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/codewriter/OrganizedImports.java @ 9216:8b9ea2f5c36e
Removed guards from NodeData.
author | Christian Humer <christian.humer@gmail.com> |
---|---|
date | Mon, 08 Apr 2013 18:28:41 +0200 |
parents | 10d37f893471 |
children | 67bee207f20c |
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/* * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.truffle.codegen.processor.codewriter; import static com.oracle.truffle.codegen.processor.Utils.*; import java.util.*; import javax.lang.model.element.*; import javax.lang.model.type.*; import javax.lang.model.util.*; import com.oracle.truffle.codegen.processor.*; import com.oracle.truffle.codegen.processor.ast.*; public final class OrganizedImports { private final Map<TypeMirror, Integer> importUsage = new HashMap<>(); private final Map<TypeMirror, Integer> staticImportUsage = new HashMap<>(); private final Map<String, TypeMirror> simpleNamesUsed = new HashMap<>(); private final Set<String> declaredStaticMethods = new HashSet<>(); private final Set<String> declaredStaticFields = new HashSet<>(); private final Set<String> ambiguousStaticMethods = new HashSet<>(); private final Set<String> ambiguousStaticFields = new HashSet<>(); private final CodeTypeElement topLevelClass; private OrganizedImports(CodeTypeElement topLevelClass) { this.topLevelClass = topLevelClass; } public static OrganizedImports organize(CodeTypeElement topLevelClass) { OrganizedImports organized = new OrganizedImports(topLevelClass); OrganizedImports.ReferenceCollector reference = new ReferenceCollector(); topLevelClass.accept(reference, null); OrganizedImports.ImportResolver resolver = new ImportResolver(reference, organized); topLevelClass.accept(resolver, null); return organized; } public String useImport(TypeMirror type) { switch (type.getKind()) { case BOOLEAN: case BYTE: case CHAR: case DOUBLE: case FLOAT: case SHORT: case INT: case LONG: case VOID: return Utils.getSimpleName(type); case DECLARED: return createDeclaredTypeName((DeclaredType) type); case ARRAY: return useImport(((ArrayType) type).getComponentType()) + "[]"; case WILDCARD: return createWildcardName((WildcardType) type); case TYPEVAR: return "?"; default: throw new RuntimeException("Unknown type specified " + type.getKind() + " mirror: " + type); } } private String createWildcardName(WildcardType type) { StringBuilder b = new StringBuilder(); if (type.getExtendsBound() != null) { b.append("? extends ").append(useImport(type.getExtendsBound())); } else if (type.getSuperBound() != null) { b.append("? super ").append(useImport(type.getExtendsBound())); } return b.toString(); } private String createDeclaredTypeName(DeclaredType type) { String name = type.asElement().getSimpleName().toString(); TypeMirror usedByType = simpleNamesUsed.get(name); if (usedByType == null) { simpleNamesUsed.put(name, type); usedByType = type; } if (typeEquals(type, usedByType)) { addUsage(type, importUsage); } else { name = getQualifiedName(type); } if (type.getTypeArguments().size() == 0) { return name; } StringBuilder b = new StringBuilder(name); b.append("<"); if (type.getTypeArguments().size() > 0) { for (int i = 0; i < type.getTypeArguments().size(); i++) { b.append(useImport(type.getTypeArguments().get(i))); if (i < type.getTypeArguments().size() - 1) { b.append(", "); } } } b.append(">"); return b.toString(); } public String useStaticFieldImport(TypeMirror type, String fieldName) { return useStaticImport(type, fieldName, ambiguousStaticFields, declaredStaticFields); } public String useStaticMethodImport(TypeMirror type, String methodName) { return useStaticImport(type, methodName, ambiguousStaticMethods, declaredStaticMethods); } private String useStaticImport(TypeMirror type, String name, Set<String> ambiguousSymbols, Set<String> declaredSymbols) { if (ambiguousSymbols.contains(name)) { // ambiguous import return useImport(type) + "." + name; } else if (!declaredSymbols.contains(name)) { // not imported at all return useImport(type) + "." + name; } else { // import declared and not ambiguous addUsage(type, staticImportUsage); return name; } } public Set<CodeImport> generateImports() { Set<CodeImport> imports = new HashSet<>(); imports.addAll(generateImports(topLevelClass, importUsage.keySet())); imports.addAll(generateStaticImports(topLevelClass, staticImportUsage.keySet())); return imports; } void clearStaticImports() { declaredStaticFields.clear(); declaredStaticMethods.clear(); ambiguousStaticFields.clear(); ambiguousStaticMethods.clear(); } boolean processStaticImports(TypeElement element) { Set<String> importedMethods = new HashSet<>(); List<ExecutableElement> methods = ElementFilter.methodsIn(element.getEnclosedElements()); for (ExecutableElement method : methods) { if (method.getModifiers().contains(Modifier.STATIC)) { importedMethods.add(method.getSimpleName().toString()); } } boolean allMethodsAmbiguous = processStaticImportElements(importedMethods, this.ambiguousStaticMethods, this.declaredStaticMethods); Set<String> importedFields = new HashSet<>(); List<VariableElement> fields = ElementFilter.fieldsIn(element.getEnclosedElements()); for (VariableElement field : fields) { if (field.getModifiers().contains(Modifier.STATIC)) { importedFields.add(field.getSimpleName().toString()); } } boolean allFieldsAmbiguous = processStaticImportElements(importedFields, this.ambiguousStaticFields, this.declaredStaticFields); return allMethodsAmbiguous && allFieldsAmbiguous; } private static boolean processStaticImportElements(Set<String> newElements, Set<String> ambiguousElements, Set<String> declaredElements) { boolean allAmbiguous = false; if (declaredElements.containsAll(newElements)) { // all types already declared -> we can remove the import completely -> they will all // get ambiguous allAmbiguous = true; } Set<String> newAmbiguous = new HashSet<>(); Set<String> newDeclared = new HashSet<>(); for (String newElement : newElements) { if (declaredElements.contains(newElement)) { newAmbiguous.add(newElement); } else if (ambiguousElements.contains(newElement)) { // nothing to do } else { newDeclared.add(newElement); } } ambiguousElements.addAll(newAmbiguous); declaredElements.addAll(newDeclared); return allAmbiguous; } private static Set<CodeImport> generateImports(CodeTypeElement e, Set<TypeMirror> toGenerate) { Set<String> autoImportedTypes = new HashSet<>(); // if type is declared inside a super type of this class -> no import collectSuperTypeImports(e, autoImportedTypes); collectInnerTypeImports(e, autoImportedTypes); TreeSet<CodeImport> importObjects = new TreeSet<>(); for (TypeMirror importType : toGenerate) { String importTypePackageName = getPackageName(importType); if (importTypePackageName == null) { continue; // no package name -> no import } if (importTypePackageName.equals("java.lang")) { continue; // java.lang is automatically imported } if (importTypePackageName.equals(getPackageName(e)) && Utils.isTopLevelClass(importType)) { continue; // same package name -> no import } String qualifiedName = getQualifiedName(importType); if (autoImportedTypes.contains(qualifiedName)) { continue; } importObjects.add(new CodeImport(importType, getQualifiedName(importType), false)); } return importObjects; } private static void collectInnerTypeImports(TypeElement e, Set<String> autoImportedTypes) { autoImportedTypes.add(getQualifiedName(e)); for (TypeElement innerClass : ElementFilter.typesIn(e.getEnclosedElements())) { collectInnerTypeImports(innerClass, autoImportedTypes); } } private static void collectSuperTypeImports(TypeElement e, Set<String> autoImportedTypes) { List<TypeElement> superTypes = getSuperTypes(e); for (TypeElement superType : superTypes) { List<TypeElement> declaredTypes = getDeclaredTypes(superType); for (TypeElement declaredType : declaredTypes) { autoImportedTypes.add(getQualifiedName(declaredType)); } } } private static Set<CodeImport> generateStaticImports(CodeTypeElement e, Set<TypeMirror> toGenerate) { Set<String> autoImportedStaticTypes = new HashSet<>(); // if type is declared inside a super type of this class -> no import autoImportedStaticTypes.add(getQualifiedName(e)); autoImportedStaticTypes.addAll(getQualifiedSuperTypeNames(e)); TreeSet<CodeImport> importObjects = new TreeSet<>(); for (TypeMirror importType : toGenerate) { if (getPackageName(importType) == null) { continue; // no package name -> no import } String qualifiedName = getQualifiedName(importType); if (autoImportedStaticTypes.contains(qualifiedName)) { continue; } importObjects.add(new CodeImport(importType, qualifiedName + ".*", true)); } return importObjects; } private static void addUsage(TypeMirror type, Map<TypeMirror, Integer> usageMap) { if (type != null) { Integer value = usageMap.get(type); if (value == null) { usageMap.put(type, 1); } else { usageMap.put(type, value + 1); } } } private static class ReferenceCollector extends CodeElementScanner<Void, Void> { final Map<TypeMirror, Integer> typeReferences = new HashMap<>(); final Map<TypeMirror, Integer> staticTypeReferences = new HashMap<>(); @Override public void visitTree(CodeTree e, Void p) { if (e.getCodeKind() == CodeTreeKind.STATIC_FIELD_REFERENCE) { addStaticImport(e.getType()); } else if (e.getCodeKind() == CodeTreeKind.STATIC_METHOD_REFERENCE) { addStaticImport(e.getType()); } else { addImport(e.getType()); } super.visitTree(e, p); } @Override public Void visitExecutable(CodeExecutableElement e, Void p) { visitAnnotations(e.getAnnotationMirrors()); if (e.getReturnType() != null) { addImport(e.getReturnType()); } for (TypeMirror type : e.getThrownTypes()) { addImport(type); } return super.visitExecutable(e, p); } @Override public Void visitType(CodeTypeElement e, Void p) { visitAnnotations(e.getAnnotationMirrors()); addImport(e.getSuperclass()); for (TypeMirror type : e.getImplements()) { addImport(type); } return super.visitType(e, p); } @Override public Void visitVariable(VariableElement f, Void p) { visitAnnotations(f.getAnnotationMirrors()); addImport(f.asType()); return super.visitVariable(f, p); } private void visitAnnotations(List<? extends AnnotationMirror> mirrors) { for (AnnotationMirror mirror : mirrors) { visitAnnotation(mirror); } } public void visitAnnotation(AnnotationMirror e) { addImport(e.getAnnotationType()); if (!e.getElementValues().isEmpty()) { Map<? extends ExecutableElement, ? extends AnnotationValue> values = e.getElementValues(); Set<? extends ExecutableElement> methodsSet = values.keySet(); List<ExecutableElement> methodsList = new ArrayList<>(); for (ExecutableElement method : methodsSet) { if (values.get(method) == null) { continue; } methodsList.add(method); } for (int i = 0; i < methodsList.size(); i++) { AnnotationValue value = values.get(methodsList.get(i)); visitAnnotationValue(value); } } } public void visitAnnotationValue(AnnotationValue e) { e.accept(new AnnotationValueReferenceVisitor(), null); } private class AnnotationValueReferenceVisitor extends AbstractAnnotationValueVisitor7<Void, Void> { @Override public Void visitBoolean(boolean b, Void p) { return null; } @Override public Void visitByte(byte b, Void p) { return null; } @Override public Void visitChar(char c, Void p) { return null; } @Override public Void visitDouble(double d, Void p) { return null; } @Override public Void visitFloat(float f, Void p) { return null; } @Override public Void visitInt(int i, Void p) { return null; } @Override public Void visitLong(long i, Void p) { return null; } @Override public Void visitShort(short s, Void p) { return null; } @Override public Void visitString(String s, Void p) { return null; } @Override public Void visitType(TypeMirror t, Void p) { addImport(t); return null; } @Override public Void visitEnumConstant(VariableElement c, Void p) { addImport(c.asType()); return null; } @Override public Void visitAnnotation(AnnotationMirror a, Void p) { ReferenceCollector.this.visitAnnotation(a); return null; } @Override public Void visitArray(List<? extends AnnotationValue> vals, Void p) { for (int i = 0; i < vals.size(); i++) { ReferenceCollector.this.visitAnnotationValue(vals.get(i)); } return null; } } @Override public void visitImport(CodeImport e, Void p) { } private void addStaticImport(TypeMirror type) { addUsage(type, staticTypeReferences); } private void addImport(TypeMirror type) { addUsage(type, typeReferences); } } private static class ImportResolver extends CodeElementScanner<Void, Void> { private final ReferenceCollector collector; private final OrganizedImports organizedImports; public ImportResolver(OrganizedImports.ReferenceCollector collector, OrganizedImports organizedImports) { this.collector = collector; this.organizedImports = organizedImports; } @Override public Void visitType(CodeTypeElement e, Void p) { if (e.isTopLevelClass()) { organizedImports.clearStaticImports(); organizedImports.processStaticImports(e); List<TypeElement> types = Utils.getSuperTypes(e); for (TypeElement typeElement : types) { organizedImports.processStaticImports(typeElement); } for (TypeMirror type : collector.staticTypeReferences.keySet()) { TypeElement element = fromTypeMirror(type); if (element != null) { // already processed by supertype if (types.contains(element)) { continue; } organizedImports.processStaticImports(element); } } for (TypeMirror imp : collector.typeReferences.keySet()) { organizedImports.useImport(imp); } } return super.visitType(e, p); } @Override public void visitTree(CodeTree e, Void p) { if (e.getCodeKind() == CodeTreeKind.TYPE) { organizedImports.useImport(e.getType()); } else if (e.getCodeKind() == CodeTreeKind.STATIC_FIELD_REFERENCE) { organizedImports.useStaticFieldImport(e.getType(), e.getString()); } else if (e.getCodeKind() == CodeTreeKind.STATIC_METHOD_REFERENCE) { organizedImports.useStaticMethodImport(e.getType(), e.getString()); } super.visitTree(e, p); } } }