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ASTStringUtil.java
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ASTStringUtil.java
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/*******************************************************************************
* Copyright (c) 2006, 2015 Wind River Systems, Inc. and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Anton Leherbauer (Wind River Systems) - initial API and implementation
* Markus Schorn (Wind River Systems)
* Sergey Prigogin (Google)
* Marc-Andre Laperle (Ericsson)
*******************************************************************************/
package org.eclipse.cdt.internal.core.model;
import org.eclipse.cdt.core.dom.ast.IASTArrayDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTArrayModifier;
import org.eclipse.cdt.core.dom.ast.IASTArraySubscriptExpression;
import org.eclipse.cdt.core.dom.ast.IASTBinaryExpression;
import org.eclipse.cdt.core.dom.ast.IASTCastExpression;
import org.eclipse.cdt.core.dom.ast.IASTCompositeTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTConditionalExpression;
import org.eclipse.cdt.core.dom.ast.IASTDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTElaboratedTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTEnumerationSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTEqualsInitializer;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTExpressionList;
import org.eclipse.cdt.core.dom.ast.IASTFieldDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTFieldReference;
import org.eclipse.cdt.core.dom.ast.IASTFunctionCallExpression;
import org.eclipse.cdt.core.dom.ast.IASTFunctionDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTFunctionDefinition;
import org.eclipse.cdt.core.dom.ast.IASTIdExpression;
import org.eclipse.cdt.core.dom.ast.IASTInitializer;
import org.eclipse.cdt.core.dom.ast.IASTInitializerClause;
import org.eclipse.cdt.core.dom.ast.IASTInitializerList;
import org.eclipse.cdt.core.dom.ast.IASTLiteralExpression;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNamedTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IASTParameterDeclaration;
import org.eclipse.cdt.core.dom.ast.IASTPointer;
import org.eclipse.cdt.core.dom.ast.IASTPointerOperator;
import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclaration;
import org.eclipse.cdt.core.dom.ast.IASTStandardFunctionDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTTypeId;
import org.eclipse.cdt.core.dom.ast.IASTTypeIdExpression;
import org.eclipse.cdt.core.dom.ast.IASTUnaryExpression;
import org.eclipse.cdt.core.dom.ast.c.ICASTDesignatedInitializer;
import org.eclipse.cdt.core.dom.ast.c.ICASTSimpleDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.c.ICASTTypeIdInitializerExpression;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTCastExpression;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTCompositeTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTConstructorInitializer;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTDeclarator;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTDecltypeSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTDeleteExpression;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTDesignatedInitializer;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTElaboratedTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTFunctionDeclarator;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTFunctionDeclarator.RefQualifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTNameSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTNewExpression;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTPackExpansionExpression;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTParameterDeclaration;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTPointerToMember;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTQualifiedName;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTReferenceOperator;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTSimpleTypeConstructorExpression;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTSimpleTypeTemplateParameter;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTemplateId;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTemplateParameter;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTemplatedTypeTemplateParameter;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTypeId;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTypeIdExpression;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTypeTransformationSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTUnaryExpression;
import org.eclipse.cdt.core.dom.ast.gnu.IGNUASTCompoundStatementExpression;
import org.eclipse.cdt.core.dom.ast.gnu.c.ICASTKnRFunctionDeclarator;
import org.eclipse.cdt.core.parser.GCCKeywords;
import org.eclipse.cdt.core.parser.Keywords;
import org.eclipse.cdt.core.parser.util.CharArrayUtils;
import org.eclipse.cdt.internal.core.dom.parser.ASTQueries;
/**
* This is a utility class to help convert AST elements to strings.
*
* @see org.eclipse.cdt.core.dom.ast.ASTTypeUtil
*/
public class ASTStringUtil {
private static final String SPACE = " "; //$NON-NLS-1$
private static final String COMMA_SPACE = ", "; //$NON-NLS-1$
private static final String[] EMPTY_STRING_ARRAY = {};
/**
* Return the qualified name if the given <code>IASTName</code>
* is an <code>ICPPASTQualifiedName</code>, otherwise a simple name is returned.
*
* @param name
* @return a (possibly) qualified name
*/
public static String getQualifiedName(IASTName name) {
return appendQualifiedNameString(new StringBuilder(), name).toString();
}
/**
* Return the non-qualified name.
*
* @param name
* @return a non-qualified name
*/
public static String getSimpleName(IASTName name) {
return appendSimpleNameString(new StringBuilder(), name).toString();
}
/**
* Compute a signature string with parameters, without initializers.
*/
public static String getSignatureString(IASTDeclarator declarator) {
return trimRight(appendSignatureString(new StringBuilder(), declarator)).toString();
}
/**
* Compute a signature string including parameters, but without initializers.
*
* @param declSpecifier
* @param declarator
* @return the signature string
*/
public static String getSignatureString(IASTDeclSpecifier declSpecifier, IASTDeclarator declarator) {
final StringBuilder buffer = new StringBuilder();
appendDeclarationString(buffer, declSpecifier, declarator, null);
return trimRight(buffer).toString();
}
/**
* Compute the return-type string for a function declarator.
*
* @param declSpecifier
* @param fdecl
* @return the return type string
*/
public static String getReturnTypeString(IASTDeclSpecifier declSpecifier, IASTFunctionDeclarator fdecl) {
final StringBuilder buffer = new StringBuilder();
final IASTDeclarator declarator = ASTQueries.findOutermostDeclarator(fdecl);
appendDeclarationString(buffer, declSpecifier, declarator, fdecl);
return trimRight(buffer).toString();
}
/**
* Get the signatures of the function parameter declarations.
*
* @param functionDeclarator
* @return the parameter signature array
*/
public static String[] getParameterSignatureArray(IASTFunctionDeclarator functionDeclarator) {
if (functionDeclarator instanceof IASTStandardFunctionDeclarator) {
final IASTStandardFunctionDeclarator standardFunctionDecl = (IASTStandardFunctionDeclarator) functionDeclarator;
final IASTParameterDeclaration[] parameters = standardFunctionDecl.getParameters();
final boolean takesVarArgs = standardFunctionDecl.takesVarArgs();
final String[] parameterStrings = new String[parameters.length + (takesVarArgs ? 1 : 0)];
int i;
for (i = 0; i < parameters.length; ++i) {
parameterStrings[i] = getParameterSignatureString(parameters[i]);
}
if (takesVarArgs) {
parameterStrings[i] = new String(Keywords.cpELLIPSIS);
}
return parameterStrings;
} else if (functionDeclarator instanceof ICASTKnRFunctionDeclarator) {
final ICASTKnRFunctionDeclarator knrDeclarator = (ICASTKnRFunctionDeclarator) functionDeclarator;
final IASTName[] names = knrDeclarator.getParameterNames();
final String[] result = new String[names.length];
for (int i = 0; i < names.length; i++) {
if (names[i] != null) {
final IASTDeclarator declaratorForParameterName = knrDeclarator
.getDeclaratorForParameterName(names[i]);
if (declaratorForParameterName != null) {
result[i] = getSignatureString(declaratorForParameterName);
} else {
result[i] = "?"; //$NON-NLS-1$
}
}
}
return result;
}
return EMPTY_STRING_ARRAY;
}
/**
* Convert the given template parameters into a string array.
*
* @param templateParams
* @return a string array of template parameters
*/
public static String[] getTemplateParameterArray(ICPPASTTemplateParameter[] templateParams) {
final String[] parameterTypes = new String[templateParams.length];
for (int i = 0; i < templateParams.length; i++) {
final StringBuilder paramType = new StringBuilder();
final ICPPASTTemplateParameter parameter = templateParams[i];
appendTemplateParameterString(paramType, parameter);
parameterTypes[i] = trimRight(paramType).toString();
}
return parameterTypes;
}
/**
* Returns a string representation for the given expression
*/
public static String getExpressionString(IASTExpression expression) {
StringBuilder buf = new StringBuilder();
return appendExpressionString(buf, expression).toString();
}
public static String getInitializerString(IASTInitializer init) {
StringBuilder buf = new StringBuilder();
return appendInitializerString(buf, init).toString();
}
/**
* Joins strings together using a given delimiter.
* @param strings the strings to join.
* @param delimiter the delimiter that is put between the strings when joining them.
* @return the joined string.
*/
public static String join(String[] strings, CharSequence delimiter) {
if (strings.length == 0) {
return ""; //$NON-NLS-1$
} else if (strings.length == 1) {
return strings[0];
} else {
StringBuilder buf = new StringBuilder(strings[0]);
for (int i = 1; i < strings.length; i++) {
buf.append(delimiter);
buf.append(strings[i]);
}
return buf.toString();
}
}
private static String getParameterSignatureString(IASTParameterDeclaration parameterDeclaration) {
return trimRight(appendParameterDeclarationString(new StringBuilder(), parameterDeclaration)).toString();
}
private static StringBuilder appendSignatureString(StringBuilder buffer, IASTDeclarator declarator) {
// get the declaration node
IASTNode node = declarator.getParent();
while (node instanceof IASTDeclarator) {
declarator = (IASTDeclarator) node;
node = node.getParent();
}
// get the declSpec
final IASTDeclSpecifier declSpec;
if (node instanceof IASTParameterDeclaration) {
declSpec = ((IASTParameterDeclaration) node).getDeclSpecifier();
} else if (node instanceof IASTSimpleDeclaration) {
declSpec = ((IASTSimpleDeclaration) node).getDeclSpecifier();
} else if (node instanceof IASTFunctionDefinition) {
declSpec = ((IASTFunctionDefinition) node).getDeclSpecifier();
} else if (node instanceof IASTTypeId) {
declSpec = ((IASTTypeId) node).getDeclSpecifier();
} else {
declSpec = null;
}
return appendDeclarationString(buffer, declSpec, declarator, null);
}
private static StringBuilder appendDeclarationString(StringBuilder buffer, IASTDeclSpecifier declSpecifier,
IASTDeclarator declarator, IASTFunctionDeclarator returnTypeOf) {
if (declSpecifier != null) {
appendDeclSpecifierString(buffer, declSpecifier);
trimRight(buffer);
}
appendDeclaratorString(buffer, declarator, false, returnTypeOf);
return buffer;
}
private static StringBuilder appendDeclaratorString(StringBuilder buffer, IASTDeclarator declarator,
boolean protectPointers, IASTFunctionDeclarator returnTypeOf) {
if (declarator == null) {
return buffer;
}
final IASTPointerOperator[] ptrs = declarator.getPointerOperators();
final boolean useParenthesis = protectPointers && ptrs.length > 0;
if (useParenthesis) {
buffer.append(Keywords.cpLPAREN);
protectPointers = false;
}
appendPointerOperatorsString(buffer, ptrs);
if (declarator != returnTypeOf) {
final IASTDeclarator nestedDeclarator = declarator.getNestedDeclarator();
if (nestedDeclarator != null) {
protectPointers = protectPointers || declarator instanceof IASTArrayDeclarator
|| declarator instanceof IASTFunctionDeclarator || declarator instanceof IASTFieldDeclarator;
appendDeclaratorString(buffer, nestedDeclarator, protectPointers, returnTypeOf);
} else if (declarator instanceof ICPPASTDeclarator
&& ((ICPPASTDeclarator) declarator).declaresParameterPack()) {
buffer.append(Keywords.cpELLIPSIS);
}
if (declarator instanceof IASTArrayDeclarator) {
appendArrayQualifiersString(buffer, (IASTArrayDeclarator) declarator);
} else if (declarator instanceof IASTFunctionDeclarator) {
final IASTFunctionDeclarator functionDecl = (IASTFunctionDeclarator) declarator;
appendParameterSignatureString(buffer, functionDecl);
if (declarator instanceof ICPPASTFunctionDeclarator) {
final ICPPASTFunctionDeclarator cppFunctionDecl = (ICPPASTFunctionDeclarator) declarator;
if (cppFunctionDecl.isConst()) {
buffer.append(Keywords.CONST).append(' ');
}
if (cppFunctionDecl.isVolatile()) {
buffer.append(Keywords.VOLATILE).append(' ');
}
RefQualifier refQualifier = cppFunctionDecl.getRefQualifier();
if (refQualifier != null) {
switch (refQualifier) {
case LVALUE:
buffer.append(Keywords.cpAMPER).append(' ');
break;
case RVALUE:
buffer.append(Keywords.cpAND).append(' ');
break;
}
}
if (cppFunctionDecl.isPureVirtual()) {
buffer.append("=0 "); //$NON-NLS-1$
}
final IASTTypeId[] exceptionTypeIds = cppFunctionDecl.getExceptionSpecification();
if (exceptionTypeIds != ICPPASTFunctionDeclarator.NO_EXCEPTION_SPECIFICATION) {
buffer.append(Keywords.THROW).append(" ("); //$NON-NLS-1$
for (int i = 0; i < exceptionTypeIds.length; i++) {
if (i > 0) {
buffer.append(COMMA_SPACE);
}
appendTypeIdString(buffer, exceptionTypeIds[i]);
}
buffer.append(')');
}
}
} else if (declarator instanceof IASTFieldDeclarator) {
final IASTFieldDeclarator fieldDeclarator = (IASTFieldDeclarator) declarator;
final IASTExpression bitFieldSize = fieldDeclarator.getBitFieldSize();
if (bitFieldSize != null) {
buffer.append(Keywords.cpCOLON);
appendExpressionString(buffer, bitFieldSize);
}
} else {
// just a nested name
}
}
if (useParenthesis) {
trimRight(buffer);
buffer.append(Keywords.cpRPAREN);
}
return buffer;
}
private static StringBuilder appendInitializerString(StringBuilder buffer, IASTInitializer initializer) {
if (initializer instanceof IASTEqualsInitializer) {
final IASTEqualsInitializer initializerExpression = (IASTEqualsInitializer) initializer;
buffer.append(Keywords.cpASSIGN);
appendInitClauseString(buffer, initializerExpression.getInitializerClause());
} else if (initializer instanceof IASTInitializerList) {
final IASTInitializerList initializerList = (IASTInitializerList) initializer;
final IASTInitializerClause[] initializers = initializerList.getClauses();
buffer.append(Keywords.cpASSIGN);
buffer.append(Keywords.cpLBRACE);
for (int i = 0; i < initializers.length; i++) {
if (i > 0) {
buffer.append(COMMA_SPACE);
}
appendInitClauseString(buffer, initializers[i]);
}
trimRight(buffer);
buffer.append(Keywords.cpRBRACE);
} else if (initializer instanceof ICASTDesignatedInitializer
|| initializer instanceof ICPPASTDesignatedInitializer) {
//TODO handle ICASTDesignatedInitializer?
// final ICASTDesignatedInitializer designatedInitializer= (ICASTDesignatedInitializer) initializer;
// final ICASTDesignator[] designator= designatedInitializer.getDesignators();
} else if (initializer instanceof ICPPASTConstructorInitializer) {
final ICPPASTConstructorInitializer constructorInitializer = (ICPPASTConstructorInitializer) initializer;
final IASTInitializerClause[] clauses = constructorInitializer.getArguments();
buffer.append(Keywords.cpLPAREN);
for (int i = 0; i < clauses.length; i++) {
if (i > 0) {
buffer.append(COMMA_SPACE);
}
appendInitClauseString(buffer, clauses[i]);
}
trimRight(buffer);
buffer.append(Keywords.cpRPAREN);
} else if (initializer != null) {
assert false : "TODO: handle " + initializer.getClass().getName(); //$NON-NLS-1$
}
return buffer;
}
private static StringBuilder appendInitClauseString(StringBuilder buffer, IASTInitializerClause initializerClause) {
if (initializerClause instanceof IASTExpression) {
return appendExpressionString(buffer, (IASTExpression) initializerClause);
}
if (initializerClause instanceof IASTInitializer) {
return appendInitializerString(buffer, (IASTInitializer) initializerClause);
}
return buffer;
}
private static StringBuilder appendTypeIdString(StringBuilder buffer, IASTTypeId typeId) {
appendDeclSpecifierString(buffer, typeId.getDeclSpecifier());
appendDeclaratorString(buffer, typeId.getAbstractDeclarator(), false, null);
if (typeId instanceof ICPPASTTypeId && ((ICPPASTTypeId) typeId).isPackExpansion())
buffer.append(Keywords.cpELLIPSIS);
return buffer;
}
private static StringBuilder trimRight(StringBuilder buffer) {
int length = buffer.length();
while (length > 0 && buffer.charAt(length - 1) == ' ') {
--length;
}
buffer.setLength(length);
return buffer;
}
private static StringBuilder appendArrayQualifiersString(StringBuilder buffer, IASTArrayDeclarator declarator) {
final IASTArrayModifier[] modifiers = declarator.getArrayModifiers();
final int count = modifiers.length;
for (int i = 0; i < count; i++) {
buffer.append(Keywords.cpLBRACKET).append(Keywords.cpRBRACKET);
}
return buffer;
}
private static StringBuilder appendPointerOperatorsString(StringBuilder buffer,
IASTPointerOperator[] pointerOperators) {
for (final IASTPointerOperator pointerOperator : pointerOperators) {
if (pointerOperator instanceof IASTPointer) {
final IASTPointer pointer = (IASTPointer) pointerOperator;
if (pointer instanceof ICPPASTPointerToMember) {
final ICPPASTPointerToMember pointerToMember = (ICPPASTPointerToMember) pointer;
appendQualifiedNameString(buffer, pointerToMember.getName());
}
buffer.append(Keywords.cpSTAR);
if (pointer.isConst()) {
buffer.append(' ').append(Keywords.CONST);
}
if (pointer.isVolatile()) {
buffer.append(' ').append(Keywords.VOLATILE);
}
if (pointer.isRestrict()) {
buffer.append(' ').append(Keywords.RESTRICT);
}
} else if (pointerOperator instanceof ICPPASTReferenceOperator) {
if (((ICPPASTReferenceOperator) pointerOperator).isRValueReference()) {
buffer.append(Keywords.cpAND);
} else {
buffer.append(Keywords.cpAMPER);
}
}
}
return buffer;
}
private static StringBuilder appendParameterSignatureString(StringBuilder buffer,
IASTFunctionDeclarator functionDeclarator) {
if (functionDeclarator instanceof IASTStandardFunctionDeclarator) {
final IASTStandardFunctionDeclarator standardFunctionDecl = (IASTStandardFunctionDeclarator) functionDeclarator;
final IASTParameterDeclaration[] parameters = standardFunctionDecl.getParameters();
final boolean takesVarArgs = standardFunctionDecl.takesVarArgs();
buffer.append(Keywords.cpLPAREN);
for (int i = 0; i < parameters.length; i++) {
if (i > 0) {
buffer.append(COMMA_SPACE);
}
appendParameterDeclarationString(buffer, parameters[i]);
}
if (takesVarArgs) {
if (parameters.length > 0) {
buffer.append(COMMA_SPACE);
}
buffer.append(Keywords.cpELLIPSIS);
}
trimRight(buffer);
buffer.append(Keywords.cpRPAREN);
} else if (functionDeclarator instanceof ICASTKnRFunctionDeclarator) {
buffer.append(Keywords.cpLPAREN);
final ICASTKnRFunctionDeclarator knrDeclarator = (ICASTKnRFunctionDeclarator) functionDeclarator;
final IASTName[] names = knrDeclarator.getParameterNames();
for (int i = 0; i < names.length; i++) {
if (i > 0) {
buffer.append(COMMA_SPACE);
}
if (names[i] != null) {
final IASTDeclarator declaratorForParameterName = knrDeclarator
.getDeclaratorForParameterName(names[i]);
if (declaratorForParameterName != null) {
appendSignatureString(buffer, declaratorForParameterName);
}
}
}
trimRight(buffer);
buffer.append(Keywords.cpRPAREN);
}
return buffer;
}
private static StringBuilder appendParameterDeclarationString(StringBuilder buffer,
IASTParameterDeclaration parameter) {
final IASTDeclSpecifier declSpecifier = parameter.getDeclSpecifier();
if (declSpecifier != null) {
appendDeclSpecifierString(buffer, declSpecifier);
trimRight(buffer);
}
final IASTDeclarator declarator = parameter.getDeclarator();
if (declarator != null) {
appendDeclaratorString(buffer, declarator, false, null);
appendInitializerString(buffer, declarator.getInitializer());
}
return buffer;
}
private static StringBuilder appendDeclSpecifierString(StringBuilder buffer, IASTDeclSpecifier declSpecifier) {
if (declSpecifier.isConst()) {
buffer.append(Keywords.CONST).append(' ');
}
if (declSpecifier.isVolatile()) {
buffer.append(Keywords.VOLATILE).append(' ');
}
// if (declSpecifier.isInline()) {
// buffer.append(Keywords.INLINE).append(' ');
// }
// if (declSpecifier instanceof ICASTDeclSpecifier) {
// final ICASTDeclSpecifier cDeclSpec= (ICASTDeclSpecifier) declSpecifier;
// if (cDeclSpec.isRestrict()) {
// buffer.append(Keywords.RESTRICT).append(' ');
// }
// } else if (declSpecifier instanceof ICPPASTDeclSpecifier) {
// final ICPPASTDeclSpecifier cppDeclSpec= (ICPPASTDeclSpecifier) declSpecifier;
// if (cppDeclSpec.isFriend()) {
// buffer.append(Keywords.FRIEND).append(' ');
// }
// if (cppDeclSpec.isVirtual()) {
// buffer.append(Keywords.VIRTUAL).append(' ');
// }
// if (cppDeclSpec.isExplicit()) {
// buffer.append(Keywords.EXPLICIT).append(' ');
// }
// if (declSpecifier instanceof IGPPASTDeclSpecifier) {
// final IGPPASTDeclSpecifier gppDeclSpec= (IGPPASTDeclSpecifier) declSpecifier;
// if (gppDeclSpec.isRestrict()) {
// buffer.append(Keywords.RESTRICT).append(' ');
// }
// }
// }
// storage class
// final int storageClass= declSpecifier.getStorageClass();
// switch (storageClass) {
// case IASTDeclSpecifier.sc_typedef:
// buffer.append(Keywords.TYPEDEF).append(' ');
// break;
// case IASTDeclSpecifier.sc_extern:
// buffer.append(Keywords.EXTERN).append(' ');
// break;
// case IASTDeclSpecifier.sc_static:
// buffer.append(Keywords.STATIC).append(' ');
// break;
// case IASTDeclSpecifier.sc_auto:
// buffer.append(Keywords.AUTO).append(' ');
// break;
// case IASTDeclSpecifier.sc_register:
// buffer.append(Keywords.REGISTER).append(' ');
// break;
// case ICPPASTDeclSpecifier.sc_mutable:
// buffer.append(Keywords.MUTABLE).append(' ');
// break;
// }
if (declSpecifier instanceof IASTCompositeTypeSpecifier) {
final IASTCompositeTypeSpecifier compositeTypeSpec = (IASTCompositeTypeSpecifier) declSpecifier;
final int key = compositeTypeSpec.getKey();
switch (key) {
case IASTCompositeTypeSpecifier.k_struct:
buffer.append(Keywords.STRUCT).append(' ');
break;
case IASTCompositeTypeSpecifier.k_union:
buffer.append(Keywords.UNION).append(' ');
break;
case ICPPASTCompositeTypeSpecifier.k_class:
buffer.append(Keywords.CLASS).append(' ');
break;
default:
}
appendQualifiedNameString(buffer, compositeTypeSpec.getName());
} else if (declSpecifier instanceof IASTElaboratedTypeSpecifier) {
final IASTElaboratedTypeSpecifier elaboratedTypeSpec = (IASTElaboratedTypeSpecifier) declSpecifier;
switch (elaboratedTypeSpec.getKind()) {
case IASTElaboratedTypeSpecifier.k_enum:
buffer.append(Keywords.ENUM).append(' ');
break;
case IASTElaboratedTypeSpecifier.k_struct:
buffer.append(Keywords.STRUCT).append(' ');
break;
case IASTElaboratedTypeSpecifier.k_union:
buffer.append(Keywords.UNION).append(' ');
break;
case ICPPASTElaboratedTypeSpecifier.k_class:
buffer.append(Keywords.CLASS).append(' ');
break;
default:
assert false;
}
appendQualifiedNameString(buffer, elaboratedTypeSpec.getName());
} else if (declSpecifier instanceof IASTEnumerationSpecifier) {
final IASTEnumerationSpecifier enumerationSpec = (IASTEnumerationSpecifier) declSpecifier;
buffer.append(Keywords.ENUM).append(' ');
appendQualifiedNameString(buffer, enumerationSpec.getName());
} else if (declSpecifier instanceof IASTSimpleDeclSpecifier) {
final IASTSimpleDeclSpecifier simpleDeclSpec = (IASTSimpleDeclSpecifier) declSpecifier;
if (simpleDeclSpec.isSigned()) {
buffer.append(Keywords.SIGNED).append(' ');
}
if (simpleDeclSpec.isUnsigned()) {
buffer.append(Keywords.UNSIGNED).append(' ');
}
if (simpleDeclSpec.isShort()) {
buffer.append(Keywords.SHORT).append(' ');
}
if (simpleDeclSpec.isLong()) {
buffer.append(Keywords.LONG).append(' ');
}
if (simpleDeclSpec.isLongLong()) {
buffer.append(Keywords.LONG_LONG).append(' ');
}
if (simpleDeclSpec.isComplex()) {
buffer.append(Keywords._COMPLEX).append(' ');
}
if (simpleDeclSpec.isImaginary()) {
buffer.append(Keywords._IMAGINARY).append(' ');
}
switch (simpleDeclSpec.getType()) {
case IASTSimpleDeclSpecifier.t_void:
buffer.append(Keywords.VOID).append(' ');
break;
case IASTSimpleDeclSpecifier.t_char:
buffer.append(Keywords.CHAR).append(' ');
break;
case IASTSimpleDeclSpecifier.t_int:
buffer.append(Keywords.INT).append(' ');
break;
case IASTSimpleDeclSpecifier.t_int128:
buffer.append(GCCKeywords.cp__int128).append(' ');
break;
case IASTSimpleDeclSpecifier.t_float:
buffer.append(Keywords.FLOAT).append(' ');
break;
case IASTSimpleDeclSpecifier.t_double:
buffer.append(Keywords.DOUBLE).append(' ');
break;
case IASTSimpleDeclSpecifier.t_float128:
buffer.append(GCCKeywords.cp__float128).append(' ');
break;
case IASTSimpleDeclSpecifier.t_decimal32:
buffer.append(GCCKeywords.cp_decimal32).append(' ');
break;
case IASTSimpleDeclSpecifier.t_decimal64:
buffer.append(GCCKeywords.cp_decimal64).append(' ');
break;
case IASTSimpleDeclSpecifier.t_decimal128:
buffer.append(GCCKeywords.cp_decimal128).append(' ');
break;
case IASTSimpleDeclSpecifier.t_bool:
if (simpleDeclSpec instanceof ICASTSimpleDeclSpecifier) {
buffer.append(Keywords.cBOOL).append(' ');
} else {
buffer.append(Keywords.BOOL).append(' ');
}
break;
case IASTSimpleDeclSpecifier.t_wchar_t:
buffer.append(Keywords.WCHAR_T).append(' ');
break;
case IASTSimpleDeclSpecifier.t_char16_t:
buffer.append(Keywords.CHAR16_T).append(' ');
break;
case IASTSimpleDeclSpecifier.t_char32_t:
buffer.append(Keywords.CHAR32_T).append(' ');
break;
default:
}
} else if (declSpecifier instanceof IASTNamedTypeSpecifier) {
final IASTNamedTypeSpecifier namedTypeSpec = (IASTNamedTypeSpecifier) declSpecifier;
appendQualifiedNameString(buffer, namedTypeSpec.getName());
} else if (declSpecifier instanceof ICPPASTTypeTransformationSpecifier) {
final ICPPASTTypeTransformationSpecifier typeTransformationSpec = (ICPPASTTypeTransformationSpecifier) declSpecifier;
switch (typeTransformationSpec.getOperator()) {
case underlying_type:
buffer.append(GCCKeywords.cp__underlying_type);
break;
default:
}
buffer.append('(');
appendTypeIdString(buffer, typeTransformationSpec.getOperand());
buffer.append(')');
}
return buffer;
}
private static StringBuilder appendQualifiedNameString(StringBuilder buffer, IASTName name) {
return appendNameString(buffer, name, true);
}
private static StringBuilder appendDecltypeSpecifier(StringBuilder buffer, ICPPASTDecltypeSpecifier decltypeSpec) {
buffer.append(Keywords.DECLTYPE);
buffer.append(Keywords.cpLPAREN);
appendExpressionString(buffer, decltypeSpec.getDecltypeExpression());
buffer.append(Keywords.cpRPAREN);
return buffer;
}
private static StringBuilder appendQualifiedNameString(StringBuilder buffer, ICPPASTNameSpecifier nameSpec) {
if (nameSpec instanceof IASTName) {
appendQualifiedNameString(buffer, (IASTName) nameSpec);
} else if (nameSpec instanceof ICPPASTDecltypeSpecifier) {
appendDecltypeSpecifier(buffer, (ICPPASTDecltypeSpecifier) nameSpec);
}
return buffer;
}
private static StringBuilder appendSimpleNameString(StringBuilder buffer, IASTName name) {
return appendNameString(buffer, name, false);
}
private static StringBuilder appendNameString(StringBuilder buffer, IASTName name, boolean qualified) {
if (name instanceof ICPPASTQualifiedName) {
final ICPPASTQualifiedName qualifiedName = (ICPPASTQualifiedName) name;
if (qualified) {
final ICPPASTNameSpecifier[] segments = qualifiedName.getAllSegments();
for (int i = 0; i < segments.length; i++) {
if (i > 0) {
buffer.append(Keywords.cpCOLONCOLON);
}
appendQualifiedNameString(buffer, segments[i]);
}
} else {
IASTName lastName = qualifiedName.getLastName();
appendNameString(buffer, lastName, false);
}
} else if (name instanceof ICPPASTTemplateId) {
final ICPPASTTemplateId templateId = (ICPPASTTemplateId) name;
appendQualifiedNameString(buffer, templateId.getTemplateName());
final IASTNode[] templateArguments = templateId.getTemplateArguments();
buffer.append(Keywords.cpLT);
for (int i = 0; i < templateArguments.length; i++) {
if (i > 0) {
buffer.append(Keywords.cpCOMMA);
}
final IASTNode argument = templateArguments[i];
if (argument instanceof IASTTypeId) {
appendTypeIdString(buffer, (IASTTypeId) argument);
} else if (argument instanceof IASTExpression) {
final IASTExpression expression = (IASTExpression) argument;
appendExpressionString(buffer, expression);
}
trimRight(buffer);
}
buffer.append(Keywords.cpGT);
} else if (name != null) {
buffer.append(name.getSimpleID());
}
return buffer;
}
private static StringBuilder appendTemplateParameterString(StringBuilder buffer,
ICPPASTTemplateParameter parameter) {
if (parameter instanceof ICPPASTParameterDeclaration) {
appendParameterDeclarationString(buffer, (ICPPASTParameterDeclaration) parameter);
} else if (parameter instanceof ICPPASTSimpleTypeTemplateParameter) {
final ICPPASTSimpleTypeTemplateParameter simpletypeParameter = (ICPPASTSimpleTypeTemplateParameter) parameter;
final IASTName name = simpletypeParameter.getName();
if (name != null) {
appendSimpleNameString(buffer, name);
} else {
final int type = simpletypeParameter.getParameterType();
switch (type) {
case ICPPASTSimpleTypeTemplateParameter.st_class:
buffer.append(Keywords.CLASS);
break;
case ICPPASTSimpleTypeTemplateParameter.st_typename:
buffer.append(Keywords.TYPENAME);
break;
}
}
} else if (parameter instanceof ICPPASTTemplatedTypeTemplateParameter) {
final ICPPASTTemplatedTypeTemplateParameter templatedTypeParameter = (ICPPASTTemplatedTypeTemplateParameter) parameter;
final ICPPASTTemplateParameter[] subParameters = templatedTypeParameter.getTemplateParameters();
buffer.append(Keywords.TEMPLATE).append(Keywords.cpLT);
for (int i = 0; i < subParameters.length; i++) {
final ICPPASTTemplateParameter templateParameter = subParameters[i];
if (i > 0) {
buffer.append(COMMA_SPACE);
}
appendTemplateParameterString(buffer, templateParameter);
}
trimRight(buffer);
buffer.append(Keywords.cpGT);
}
return buffer;
}
private static StringBuilder appendExpressionString(StringBuilder buffer, IASTExpression expression) {
if (expression instanceof IASTIdExpression) {
final IASTIdExpression idExpression = (IASTIdExpression) expression;
return appendQualifiedNameString(buffer, idExpression.getName());
}
if (expression instanceof IASTExpressionList) {
final IASTExpressionList expressionList = (IASTExpressionList) expression;
final IASTExpression[] expressions = expressionList.getExpressions();
for (int i = 0; i < expressions.length; i++) {
if (i > 0) {
buffer.append(COMMA_SPACE);
}
appendExpressionString(buffer, expressions[i]);
}
return buffer;
}
if (expression instanceof ICPPASTSimpleTypeConstructorExpression) {
final ICPPASTSimpleTypeConstructorExpression typeCast = (ICPPASTSimpleTypeConstructorExpression) expression;
appendDeclSpecifierString(buffer, typeCast.getDeclSpecifier());
trimRight(buffer);
return appendInitializerString(buffer, typeCast.getInitializer());
}
if (expression instanceof IASTArraySubscriptExpression)
return appendArraySubscriptExpression(buffer, (IASTArraySubscriptExpression) expression);
if (expression instanceof IASTBinaryExpression)
return appendBinaryExpression(buffer, (IASTBinaryExpression) expression);
if (expression instanceof IASTCastExpression)
return appendCastExpression(buffer, (IASTCastExpression) expression);
if (expression instanceof IASTConditionalExpression)
return appendConditionalExpression(buffer, (IASTConditionalExpression) expression);
if (expression instanceof IASTExpressionList)
return appendExpressionList(buffer, (IASTExpressionList) expression);
if (expression instanceof IASTFieldReference)
return appendFieldReference(buffer, (IASTFieldReference) expression);
if (expression instanceof IASTFunctionCallExpression)
return appendFunctionCallExpression(buffer, (IASTFunctionCallExpression) expression);
if (expression instanceof IASTLiteralExpression)
return appendLiteralExpression(buffer, (IASTLiteralExpression) expression);
if (expression instanceof IASTTypeIdExpression)
return appendTypeIdExpression(buffer, (IASTTypeIdExpression) expression);
if (expression instanceof IASTUnaryExpression)
return appendUnaryExpression(buffer, (IASTUnaryExpression) expression);
if (expression instanceof ICASTTypeIdInitializerExpression)
return appendTypeIdInitializerExpression(buffer, (ICASTTypeIdInitializerExpression) expression);
if (expression instanceof ICPPASTDeleteExpression)
return appendDeleteExpression(buffer, (ICPPASTDeleteExpression) expression);
if (expression instanceof ICPPASTNewExpression)
return appendNewExpression(buffer, (ICPPASTNewExpression) expression);
if (expression instanceof IGNUASTCompoundStatementExpression)
return appendCompoundStatementExpression(buffer, (IGNUASTCompoundStatementExpression) expression);
if (expression instanceof ICPPASTPackExpansionExpression)
return appendPackExpansionExpression(buffer, (ICPPASTPackExpansionExpression) expression);
return buffer;
}
private static StringBuilder appendArraySubscriptExpression(StringBuilder buffer,
IASTArraySubscriptExpression expression) {
appendExpressionString(buffer, expression.getArrayExpression());
buffer.append(Keywords.cpLBRACKET);
appendInitClauseString(buffer, expression.getArgument());
return buffer.append(Keywords.cpRBRACKET);
}
private static StringBuilder appendCastExpression(StringBuilder buffer, IASTCastExpression expression) {
if ((expression.getOperator() == IASTCastExpression.op_cast)) {
buffer.append(Keywords.cpLPAREN);
appendTypeIdString(buffer, expression.getTypeId());
buffer.append(Keywords.cpRPAREN);
return appendExpressionString(buffer, expression.getOperand());
}
buffer.append(getCastOperatorString(expression));
buffer.append(Keywords.cpLT);
appendTypeIdString(buffer, expression.getTypeId());
trimRight(buffer);
buffer.append(Keywords.cpGT);
buffer.append(Keywords.cpLPAREN);
appendExpressionString(buffer, expression.getOperand());
return buffer.append(Keywords.cpRPAREN);
}
private static StringBuilder appendFieldReference(StringBuilder buffer, IASTFieldReference expression) {
appendExpressionString(buffer, expression.getFieldOwner());
buffer.append(expression.isPointerDereference() ? Keywords.cpARROW : Keywords.cpDOT);
return appendNameString(buffer, expression.getFieldName(), true);
}
private static StringBuilder appendFunctionCallExpression(StringBuilder buffer,
IASTFunctionCallExpression expression) {
appendExpressionString(buffer, expression.getFunctionNameExpression());
buffer.append(Keywords.cpLPAREN);
IASTInitializerClause[] clauses = expression.getArguments();
for (int i = 0; i < clauses.length; i++) {
if (i > 0) {
buffer.append(COMMA_SPACE);
}
appendInitClauseString(buffer, (clauses[i]));
}
return buffer.append(Keywords.cpRPAREN);
}
private static StringBuilder appendTypeIdInitializerExpression(StringBuilder buffer,
ICASTTypeIdInitializerExpression expression) {
buffer.append(Keywords.cpLPAREN);
appendTypeIdString(buffer, expression.getTypeId());
buffer.append(Keywords.cpRPAREN);
return appendInitializerString(buffer, expression.getInitializer());
}
private static StringBuilder appendDeleteExpression(StringBuilder buffer, ICPPASTDeleteExpression expression) {
buffer.append(Keywords.DELETE);
buffer.append(SPACE);
return appendExpressionString(buffer, expression.getOperand());
}
private static StringBuilder appendCompoundStatementExpression(StringBuilder buffer,
IGNUASTCompoundStatementExpression expression) {
buffer.append(Keywords.cpLPAREN).append(Keywords.cpLBRACE);
buffer.append(Keywords.cpELLIPSIS);
return buffer.append(Keywords.cpRBRACE).append(Keywords.cpRPAREN);
}
private static StringBuilder appendTypeIdExpression(StringBuilder buffer, IASTTypeIdExpression expression) {
buffer.append(getTypeIdExpressionOperator(expression));
buffer.append(Keywords.cpLPAREN);
appendTypeIdString(buffer, expression.getTypeId());
trimRight(buffer);
return buffer.append(Keywords.cpRPAREN);
}
private static StringBuilder appendExpressionList(StringBuilder buffer, IASTExpressionList expression) {
IASTExpression[] exps = expression.getExpressions();
if (exps != null) {
for (int i = 0; i < exps.length; i++) {
if (i > 0) {
buffer.append(COMMA_SPACE);
}
appendExpressionString(buffer, exps[i]);
}
}
return buffer;
}
private static StringBuilder appendLiteralExpression(StringBuilder buffer, IASTLiteralExpression expression) {
return buffer.append(expression.toString());
}
private static StringBuilder appendConditionalExpression(StringBuilder buffer,
IASTConditionalExpression expression) {
appendExpressionString(buffer, expression.getLogicalConditionExpression());
buffer.append(SPACE);
buffer.append(Keywords.cpQUESTION);
buffer.append(SPACE);
appendExpressionString(buffer, expression.getPositiveResultExpression());
buffer.append(SPACE);
buffer.append(Keywords.cpCOLON);
buffer.append(SPACE);
return appendExpressionString(buffer, expression.getNegativeResultExpression());
}
private static StringBuilder appendNewExpression(StringBuilder buffer, ICPPASTNewExpression expression) {
buffer.append(Keywords.NEW);
buffer.append(SPACE);
final IASTInitializerClause[] args = expression.getPlacementArguments();
if (args != null) {
buffer.append(Keywords.cpLPAREN);
for (int i = 0; i < args.length; i++) {
if (i != 0) {
buffer.append(COMMA_SPACE);
}
appendInitClauseString(buffer, args[i]);
}
buffer.append(Keywords.cpRPAREN);
}
appendTypeIdString(buffer, expression.getTypeId());
return appendInitializerString(buffer, expression.getInitializer());
}
private static StringBuilder appendBinaryExpression(StringBuilder buffer, IASTBinaryExpression expression) {
appendExpressionString(buffer, expression.getOperand1());