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Parser.java
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Parser.java
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/*
* Copyright (C) 2013-2023 Samuel Audet
*
* Licensed either under the Apache License, Version 2.0, or (at your option)
* under the terms of the GNU General Public License as published by
* the Free Software Foundation (subject to the "Classpath" exception),
* either version 2, or any later version (collectively, the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* http://www.gnu.org/licenses/
* http://www.gnu.org/software/classpath/license.html
*
* or as provided in the LICENSE.txt file that accompanied this code.
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.bytedeco.javacpp.tools;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.Writer;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.bytedeco.javacpp.ClassProperties;
import org.bytedeco.javacpp.Loader;
/**
* The Parser, just like the Generator, is a mess that is not meant to support the
* entirety of C++, but an appropriate subset as used by typical C/C++ header files.
* To figure out what that subset is and what the output should be, the idea is to
* apply it on as many C/C++ libraries as possible, and patch the code as we go.
* At one point in time, when this prototype code appears to have stabilized, we can
* start to redesign it in a more meaningful way.
* <p>
* That said, to understand how it is supposed to function in its present state,
* one can step through the code at runtime: It is quite friendly to debuggers.
* <p>
* Moreover, it relies on {@link Info} objects created as part of the execution
* of {@link InfoMapper#map(InfoMap)}. We can understand better how the parsing
* is supposed to get accomplished by studying that documentation as well.
* <p>
* To do:
* - Inherit constructors from helper classes, if possible
* - etc.
*
* @see Info
* @see InfoMap
* @see InfoMapper
*
* @author Samuel Audet
*/
public class Parser {
public Parser(Logger logger, Properties properties) {
this(logger, properties, null, null);
}
public Parser(Logger logger, Properties properties, String encoding, String lineSeparator) {
this.logger = logger;
this.properties = properties;
this.encoding = encoding;
this.lineSeparator = lineSeparator;
}
Parser(Parser p, String text) {
this.logger = p.logger;
this.properties = p.properties;
this.encoding = p.encoding;
this.infoMap = p.infoMap;
this.upcasts = p.upcasts;
Token t = p.tokens != null ? p.tokens.get() : Token.EOF;
this.tokens = new TokenIndexer(infoMap, new Tokenizer(text, t.file, t.lineNumber).tokenize(), false);
this.lineSeparator = p.lineSeparator;
}
final Logger logger;
final Properties properties;
final String encoding;
InfoMap infoMap = null;
InfoMap leafInfoMap = null;
TokenIndexer tokens = null;
String lineSeparator = null;
/** Java names of classes needing upcast from their subclasses. */
Set<String> upcasts = new HashSet<>();
/** Classes that have a base class appearing as a key in this map need a downcast constructor.
* The associated value gives the class to downcast from and whether the inheritance is virtual. */
Map<String, Map<Type, Boolean>> downcasts = new HashMap<>();
/** Java names of classes recognized as polymorphic. */
Set<String> polymorphicClasses = new HashSet<>();
private void addDowncast(String base, Type from, boolean virtual) {
Map<Type, Boolean> inheritance = downcasts.get(base);
if (inheritance == null) {
downcasts.put(base, inheritance = new HashMap<>(1));
}
inheritance.put(from, virtual);
}
static String removeAnnotations(String s) {
return s.substring(s.lastIndexOf(' ') + 1);
}
static String desugarVarargs(String s) {
return s.trim().endsWith("...") ? s.trim().substring(0, s.length() - 3) + "[]" : s;
}
static String upcastMethodName(String javaName) {
String shortName = javaName.substring(javaName.lastIndexOf('.') + 1);
return "as" + Character.toUpperCase(shortName.charAt(0)) + shortName.substring(1);
}
/**
* Constructors have 2 kinds of fully qualified name:
* the calling name of a constructor, used when calling the constructor, e.g.:
* NS::CN(int)
* and the declaration name, used when defining the constructor outside its class or when referencing a constructor
* with using to inherit constructors of base class.
* NS::CN::CN(int)
* Declarator.cppName contains the calling name, and this method returns the declaration name.
* Keys in info map should use the declaration name, because the calling name cannot specify
* arguments in case of constructor templates, and to avoid confusion between classes and constructores info.
*/
static String constructorName(String cppName) {
String constructorName = Templates.strip(cppName);
int namespace = constructorName.lastIndexOf("::");
if (namespace >= 0) {
constructorName = constructorName.substring(namespace + 2);
}
return cppName + "::" + constructorName;
}
String translate(String text) {
Info info = infoMap.getFirst(text);
if (info != null && info.javaNames != null && info.javaNames.length > 0) {
return info.javaNames[0];
}
int namespace = text.lastIndexOf("::");
if (namespace >= 0) {
Info info2 = infoMap.getFirst(text.substring(0, namespace));
String localName = text.substring(namespace + 2);
if (info2 != null && info2.pointerTypes != null) {
text = info2.pointerTypes[0] + "." + localName;
} else if (localName.length() > 0 && Character.isJavaIdentifierStart(localName.charAt(0))) {
for (char c : localName.toCharArray()) {
if (!Character.isJavaIdentifierPart(c)) {
localName = null;
break;
}
}
if (localName != null) {
text = localName;
}
}
}
int castStart = text.lastIndexOf('(');
int castEnd = text.indexOf(')', castStart);
if (castStart >= 0 && castStart < castEnd) {
Info info2 = infoMap.getFirst(text.substring(castStart + 1, castEnd));
if (info2 != null && info2.valueTypes != null && info2.valueTypes.length > 0) {
text = text.substring(0, castStart + 1) + info2.valueTypes[0] + text.substring(castEnd);
}
}
return text;
}
void containers(Context context, DeclarationList declList) throws ParserException {
List<String> basicContainers = new ArrayList<>();
for (Info info : infoMap.get("basic/containers")) {
basicContainers.addAll(Arrays.asList(info.cppTypes));
}
for (String containerName : basicContainers) {
LinkedHashSet<Info> infoSet = new LinkedHashSet<>();
infoSet.addAll(leafInfoMap.get("const " + containerName));
infoSet.addAll(leafInfoMap.get(containerName));
for (Info info : infoSet) {
Declaration decl = new Declaration();
if (info == null || info.skip || !info.define || !info.cppNames[0].contains(containerName)) {
if (info != null && info.javaText != null) {
decl.type = new Type(info.pointerTypes[0]);
decl.text = info.javaText;
declList.add(decl);
}
continue;
}
int dim = containerName.toLowerCase().endsWith("optional")
|| containerName.toLowerCase().endsWith("variant")
|| containerName.toLowerCase().endsWith("tuple")
|| containerName.toLowerCase().endsWith("function")
|| containerName.toLowerCase().endsWith("pair") ? 0 : 1;
boolean string = containerName.toLowerCase().endsWith("string");
boolean constant = info.cppNames[0].startsWith("const "), resizable = !constant;
Type containerType = new Parser(this, info.cppNames[0]).type(context),
indexType, valueType, firstType = null, secondType = null;
if (containerType.arguments == null || containerType.arguments.length == 0 || containerType.arguments[0] == null
|| containerType.arguments[containerType.arguments.length - 1] == null) {
continue;
} else if (containerType.arguments.length > 1 && containerType.arguments[1].javaName.length() > 0) {
resizable = false;
indexType = containerType.arguments[0];
valueType = containerType.arguments[1];
} else {
resizable &= containerType.arguments.length == 1; // assume second argument is the fixed size
indexType = new Type();
indexType.value = true;
indexType.cppName = "size_t";
indexType.javaName = "long";
valueType = containerType.arguments[0];
}
String indexFunction = "(function = \"at\")";
String iteratorType = "iterator";
String keyVariable = "first";
String valueVariable = "second";
boolean dict = false;
boolean list = resizable; // also vector, etc
boolean tuple = false;
boolean function = false;
if (valueType.javaName == null || valueType.javaName.length() == 0
|| containerName.toLowerCase().endsWith("bitset")) {
indexFunction = "";
valueType.javaName = "boolean";
resizable = false;
} else if (containerName.toLowerCase().endsWith("dict")) {
indexFunction = "(function = \"operator []\")";
iteratorType = "Iterator";
keyVariable = "key()";
valueVariable = "value()";
dict = true;
} else if (containerName.toLowerCase().endsWith("list")
|| containerName.toLowerCase().endsWith("optional")
|| containerName.toLowerCase().endsWith("variant")
|| containerName.toLowerCase().endsWith("tuple")
|| containerName.toLowerCase().endsWith("function")
|| containerName.toLowerCase().endsWith("set")) {
if (containerType.arguments.length > 1) {
valueType = indexType;
}
indexType = null;
resizable = false;
list = containerName.toLowerCase().endsWith("list");
tuple = containerName.toLowerCase().endsWith("tuple");
function = containerName.toLowerCase().endsWith("function");
} else if (!constant && !resizable) {
indexFunction = ""; // maps need operator[] to be writable
}
while (valueType.cppName.startsWith(containerName)
&& leafInfoMap.get(valueType.cppName, false).size() == 0) {
// increase dimension, unless the user has provided info for the intermediate type
dim++;
valueType = valueType.arguments[0];
}
int valueTemplate = valueType.cppName.indexOf("<");
if (containerName.toLowerCase().endsWith("pair")) {
firstType = containerType.arguments[0];
secondType = containerType.arguments[1];
} else if (dim > 0 && valueTemplate >= 0 && valueType.cppName.substring(0, valueTemplate).toLowerCase().endsWith("pair")) {
firstType = valueType.arguments[0];
secondType = valueType.arguments[1];
}
if (function) {
int n = valueType.cppName.indexOf('(');
Info info2 = infoMap.getFirst(valueType.cppName, false);
if (info2 != null && info2.pointerTypes != null && info2.pointerTypes.length > 0) {
valueType.javaName = info2.pointerTypes[0];
valueType.javaNames = info2.pointerTypes;
} else {
valueType.javaName = "";
valueType.javaNames = null;
}
Declarator dcl = new Parser(this, "typedef " + valueType.cppName.substring(0, n)
+ "(*" + valueType.javaName + ")" + valueType.cppName.substring(n)).declarator(context, containerType.javaName, -1, false, 0, false, true);
valueType.javaName = dcl.type.javaName;
dcl.definition.text = "\n" + dcl.definition.text;
decl.declarator = dcl;
}
ArrayList<Type> types = new ArrayList<>(4 + containerType.arguments.length);
types.addAll(Arrays.asList(firstType, secondType, indexType, valueType));
types.addAll(Arrays.asList(containerType.arguments));
for (Type type : types) {
if (type == null) {
continue;
} else if (type.annotations == null || type.annotations.length() == 0) {
type.annotations = (type.constValue ? "@Const " : "") + (type.indirections == 0 && !type.value ? "@ByRef " : "");
}
Info info2 = infoMap.getFirst(type.cppName);
if (info2 != null && info2.cast && !type.annotations.contains("@Cast") && !type.javaName.contains("@Cast")) {
String cast = type.cppName;
if (type.constValue && !cast.startsWith("const ")) {
cast = "const " + cast;
}
if (type.indirections > 0) {
for (int i = 0; i < type.indirections; i++) {
cast += "*";
}
} else if (!type.value) {
cast += "*";
}
if (type.reference) {
cast += "&";
}
if (type.rvalue) {
cast += "&&";
}
if (type.constPointer && !cast.endsWith(" const")) {
cast = cast + " const";
}
type.annotations = "@Cast(\"" + cast + "\") " + type.annotations;
}
}
String arrayBrackets = "";
for (int i = 0; i < dim - 1; i++) {
arrayBrackets += "[]";
}
int annotation = containerType.javaName.lastIndexOf(' ');
containerType.annotations += containerType.javaName.substring(0, annotation + 1);
containerType.javaName = containerType.javaName.substring(annotation + 1); // get rid of any annotations
decl.type = new Type(containerType.javaName);
decl.text += (dim == 0 ? "\n@NoOffset " : "\n")
+ "@Name(\"" + containerType.cppName + "\") public static class " + containerType.javaName + " extends Pointer {\n"
+ " static { Loader.load(); }\n"
+ " /** Pointer cast constructor. Invokes {@link Pointer#Pointer(Pointer)}. */\n"
+ " public " + containerType.javaName + "(Pointer p) { super(p); }\n";
boolean purify = info != null && info.purify;
if (!constant && !purify && (dim == 0 || (containerType.arguments.length == 1 && indexType != null)) && firstType != null && secondType != null) {
String[] firstNames = firstType.javaNames != null ? firstType.javaNames : new String[] {firstType.javaName};
String[] secondNames = secondType.javaNames != null ? secondType.javaNames : new String[] {secondType.javaName};
String brackets = arrayBrackets + (dim > 0 ? "[]" : "");
for (int n = 0; n < firstNames.length || n < secondNames.length; n++) {
decl.text += " public " + containerType.javaName + "(" + firstNames[Math.min(n, firstNames.length - 1)] + brackets + " firstValue, "
+ secondNames[Math.min(n, secondNames.length - 1)] + brackets + " secondValue) "
+ "{ this(" + (dim > 0 ? "Math.min(firstValue.length, secondValue.length)" : "") + "); put(firstValue, secondValue); }\n";
}
} else if (resizable && !purify && firstType == null && secondType == null) {
for (String javaName : valueType.javaNames != null ? valueType.javaNames : new String[] {valueType.javaName}) {
if (dim < 2 && !javaName.equals("int") && !javaName.equals("long")) {
decl.text += " public " + containerType.javaName + "(" + javaName + " value) { this(1); put(0, value); }\n";
}
decl.text += " public " + containerType.javaName + "(" + javaName + arrayBrackets + " ... array) { this(array.length); put(array); }\n";
}
} else if (indexType == null && dim == 0 && !constant && !purify) {
int n = 0;
String valueNames = "", valueNames2 = "", separator = "";
for (Type type : containerType.arguments) {
if (tuple) {
valueNames += separator + type.annotations + type.javaName + " value" + n;
valueNames2 += separator + "value" + n;
separator = ", ";
n++;
} else for (String javaName : type.javaNames != null ? type.javaNames : new String[] {type.javaName}) {
// variant, optional, etc
if (!javaName.substring(javaName.indexOf(' ') + 1).equals("Pointer")) {
decl.text += " public " + containerType.javaName + "(" + javaName + " value) { this(); put(value); }\n";
}
}
}
if (tuple) {
decl.text += " public " + containerType.javaName + "(" + valueNames + ") { allocate(" + valueNames2 + "); }\n"
+ " private native void allocate(" + valueNames + ");\n";
}
}
if (!purify) {
String initArg = "", initParam = "";
if (string) {
initArg = ", (" + removeAnnotations(valueType.javaName) + ")0";
initParam = ", " + removeAnnotations(valueType.javaName) + " value";
}
decl.text += " public " + containerType.javaName + "() { allocate(); }\n" + (!resizable ? ""
: " public " + containerType.javaName + "(long n) { allocate(n" + initArg + "); }\n")
+ " private native void allocate();\n" + (!resizable ? ""
: " private native void allocate(@Cast(\"size_t\") long n" + initParam + ");\n") + (constant ? "\n\n"
: " public native @Name(\"operator =\") @ByRef " + containerType.javaName + " put(@ByRef " + containerType.annotations + containerType.javaName + " x);\n\n");
}
for (int i = 0; i < dim; i++) {
String indexAnnotation = i > 0 ? ("@Index(" + (i > 1 ? "value = " + i + ", " : "" ) + "function = \"at\") ") : "";
String indices = "", indices2 = "", separator = "";
for (int j = 0; indexType != null && j < i; j++) {
indices += separator + indexType.annotations + indexType.javaName + " " + (char)('i' + j);
indices2 += separator + (char)('i' + j);
separator = ", ";
}
decl.text += " public boolean empty(" + indices + ") { return size(" + indices2 + ") == 0; }\n"
+ " public native " + indexAnnotation + "long size(" + indices + ");\n" + (!resizable ? ""
: " public void clear(" + indices + ") { resize(" + indices2 + separator + "0); }\n"
+ " public native " + indexAnnotation + "void resize(" + indices + separator + "@Cast(\"size_t\") long n);\n");
}
String params = "", separator = "";
for (int i = 0; indexType != null && i < dim; i++) {
params += separator + indexType.annotations + indexType.javaName + " " + (char)('i' + i);
separator = ", ";
}
if ((dim == 0 || indexType != null) && firstType != null && secondType != null) {
String indexAnnotation = dim == 0 ? "@MemberGetter " : "@Index(" + (dim > 1 ? "value = " + dim + ", " : "") + "function = \"at\") ";
decl.text += "\n"
+ " " + indexAnnotation + "public native " + firstType.annotations + firstType.javaName + " first(" + params + ");"
+ " public native " + containerType.javaName + " first(" + params + separator + removeAnnotations(firstType.javaName) + " first);\n"
+ " " + indexAnnotation + "public native " + secondType.annotations + secondType.javaName + " second(" + params + "); "
+ " public native " + containerType.javaName + " second(" + params + separator + removeAnnotations(secondType.javaName) + " second);\n";
for (int i = 1; !constant && firstType.javaNames != null && i < firstType.javaNames.length; i++) {
decl.text += " @MemberSetter @Index" + indexFunction + " public native " + containerType.javaName + " first(" + params + separator + firstType.annotations + firstType.javaNames[i] + " first);\n";
}
for (int i = 1; !constant && secondType.javaNames != null && i < secondType.javaNames.length; i++) {
decl.text += " @MemberSetter @Index" + indexFunction + " public native " + containerType.javaName + " second(" + params + separator + secondType.annotations + secondType.javaNames[i] + " second);\n";
}
} else {
if (indexType != null) {
decl.text += "\n";
if (dim == 1 && indexType.javaName.equals("long")) {
decl.text += " public " + removeAnnotations(valueType.javaName) + " front() { return get(0); }\n"
+ " public " + removeAnnotations(valueType.javaName) + " back() { return get(size() - 1); }\n";
}
decl.text += " @Index" + indexFunction + " public native " + valueType.annotations + valueType.javaName + " get(" + params + ");\n";
if (!constant) {
decl.text += " public native " + containerType.javaName + " put(" + params + separator + removeAnnotations(valueType.javaName) + " value);\n";
}
for (int i = 1; !constant && valueType.javaNames != null && i < valueType.javaNames.length; i++) {
decl.text += " @ValueSetter @Index" + indexFunction + " public native " + containerType.javaName + " put(" + params + separator + valueType.annotations + valueType.javaNames[i] + " value);\n";
}
} else if (dim == 0 && !function) {
int n = 0;
for (Type type : containerType.arguments) {
if (containerType.arguments.length == 1 && !tuple) {
decl.text += " public native boolean has_value();\n"
+ " public native void reset();\n"
+ " public native @Name(\"value\") " + type.annotations + type.javaName + " get();\n";
} else {
int namespace = containerName.lastIndexOf("::");
String ns = containerName.substring(0, namespace);
decl.text += " public " + type.annotations + type.javaName + " get" + n + "() { return get" + n + "(this); }\n"
+ " @Namespace @Name(\"" + ns + "::get<" + n + ">\") public static native " + type.annotations + type.javaName + " get" + n + "(@ByRef " + containerType.javaName + " container);\n";
}
if (!constant && !tuple) {
decl.text += " @ValueSetter public native " + containerType.javaName + " put(" + type.annotations + type.javaName + " value);\n";
}
for (int i = 1; !constant && !tuple && type.javaNames != null && i < type.javaNames.length; i++) {
decl.text += " @ValueSetter public native " + containerType.javaName + " put(" + type.annotations + type.javaNames[i] + " value);\n";
}
n++;
}
}
if (dim == 1 && !containerName.toLowerCase().endsWith("bitset") && containerType.arguments.length >= 1 && containerType.arguments[containerType.arguments.length - 1].javaName.length() > 0) {
decl.text += "\n";
if (indexType == null || (!indexType.javaName.equals("long") && containerType.arguments.length == 1)) {
decl.text += " public " + removeAnnotations(valueType.javaName) + " front() { try (Iterator it = begin()) { return it.get(); } }\n";
}
if (!constant) {
if (list) {
decl.text += " public native @ByVal Iterator insert(@ByVal Iterator pos, " + valueType.annotations + valueType.javaName + " value);\n"
+ " public native @ByVal Iterator erase(@ByVal Iterator pos);\n";
} else if (indexType == null) {
decl.text += " public native void insert(" + valueType.annotations + valueType.javaName + " value);\n"
+ " public native void erase(" + valueType.annotations + valueType.javaName + " value);\n";
} else if (!dict) {
// XXX: need to figure out something for insert() on maps
decl.text += " public native void erase(@ByVal Iterator pos);\n";
}
}
if (indexType != null && !indexType.annotations.contains("@Const") && !indexType.annotations.contains("@Cast") && !indexType.value) {
indexType.annotations += "@Const ";
}
if (!valueType.annotations.contains("@Const") && !valueType.value) {
valueType.annotations += "@Const ";
}
decl.text += " public native @ByVal Iterator begin();\n"
+ " public native @ByVal Iterator end();\n"
+ " @NoOffset @Name(\"" + iteratorType + "\") public static class Iterator extends Pointer {\n"
+ " public Iterator(Pointer p) { super(p); }\n"
+ " public Iterator() { }\n\n"
+ " public native @Name(\"operator ++\") @ByRef Iterator increment();\n"
+ " public native @Name(\"operator ==\") boolean equals(@ByRef Iterator it);\n"
+ (containerType.arguments.length > 1 && indexType != null ?
" public native @Name(\"operator *()." + keyVariable + "\") @MemberGetter " + indexType.annotations + indexType.javaName + " first();\n"
+ " public native @Name(\"operator *()." + valueVariable + "\") @MemberGetter " + valueType.annotations + valueType.javaName + " second();\n"
:
" public native @Name(\"operator *\") " + valueType.annotations + valueType.javaName + " get();\n")
+ " }\n";
if (infoMap.getFirst(containerType.cppName + "::" + iteratorType) == null) {
infoMap.put(new Info(containerType.cppName + "::" + iteratorType).pointerTypes(containerType.javaName + ".Iterator"));
}
}
if (resizable) {
valueType.javaName = removeAnnotations(valueType.javaName);
decl.text += "\n"
+ " public " + valueType.javaName + arrayBrackets + "[] get() {\n";
String indent = " ", indices = "", args = "", brackets = arrayBrackets;
separator = "";
for (int i = 0; i < dim; i++) {
char c = (char)('i' + i);
decl.text +=
indent + (i == 0 ? valueType.javaName + brackets + "[] " : "") + "array" + indices + " = new " + valueType.javaName
+ "[size(" + args + ") < Integer.MAX_VALUE ? (int)size(" + args + ") : Integer.MAX_VALUE]" + brackets + ";\n" +
indent + "for (int " + c + " = 0; " + c + " < array" + indices + ".length; " + c + "++) {\n";
indent += " ";
indices += "[" + c + "]";
args += separator + c;
brackets = brackets.length() < 2 ? "" : brackets.substring(2);
separator = ", ";
}
decl.text += indent + "array" + indices + " = get(" + args + ");\n";
for (int i = 0; i < dim; i++) {
indent = indent.substring(4);
decl.text += indent + "}\n";
}
decl.text += " return array;\n"
+ " }\n"
+ " @Override public String toString() {\n"
+ " return java.util.Arrays." + (dim < 2 ? "toString" : "deepToString" ) + "(get());\n"
+ " }\n";
}
}
if (!constant && (dim == 0 || (containerType.arguments.length == 1 && indexType != null)) && firstType != null && secondType != null) {
String[] firstNames = firstType.javaNames != null ? firstType.javaNames : new String[] {firstType.javaName};
String[] secondNames = secondType.javaNames != null ? secondType.javaNames : new String[] {secondType.javaName};
String brackets = arrayBrackets + (dim > 0 ? "[]" : "");
for (int n = 0; n < firstNames.length || n < secondNames.length; n++) {
String firstName = firstNames[Math.min(n, firstNames.length - 1)];
String secondName = secondNames[Math.min(n, secondNames.length - 1)];
firstName = removeAnnotations(firstName);
secondName = removeAnnotations(secondName);
decl.text += "\n"
+ " public " + containerType.javaName + " put(" + firstName + brackets + " firstValue, "
+ secondName + brackets + " secondValue) {\n";
String indent = " ", indices = "", args = "";
separator = "";
for (int i = 0; i < dim; i++) {
char c = (char)('i' + i);
decl.text +=
indent + "for (int " + c + " = 0; " + c + " < firstValue" + indices + ".length && "
+ c + " < secondValue" + indices + ".length; " + c + "++) {\n";
indent += " ";
indices += "[" + c + "]";
args += separator + c;
separator = ", ";
}
decl.text += indent + "first(" + args + separator + "firstValue" + indices + ");\n"
+ indent + "second(" + args + separator + "secondValue" + indices + ");\n";
for (int i = 0; i < dim; i++) {
indent = indent.substring(4);
decl.text += indent + "}\n";
}
decl.text += " return this;\n"
+ " }\n";
}
} else if (resizable && firstType == null && secondType == null) {
boolean first = true;
for (String javaName : valueType.javaNames != null ? valueType.javaNames : new String[] {valueType.javaName}) {
javaName = removeAnnotations(javaName);
decl.text += "\n";
if (dim < 2) {
if (first) {
decl.text += " public " + javaName + " pop_back() {\n"
+ " long size = size();\n"
+ " " + javaName + " value = get(size - 1);\n"
+ " resize(size - 1);\n"
+ " return value;\n"
+ " }\n";
}
decl.text += " public " + containerType.javaName + " push_back(" + javaName + " value) {\n"
+ " long size = size();\n"
+ " resize(size + 1);\n"
+ " return put(size, value);\n"
+ " }\n"
+ " public " + containerType.javaName + " put(" + javaName + " value) {\n"
+ " if (size() != 1) { resize(1); }\n"
+ " return put(0, value);\n"
+ " }\n";
}
decl.text += " public " + containerType.javaName + " put(" + javaName + arrayBrackets + " ... array) {\n";
String indent = " ", indices = "", args = "";
separator = "";
for (int i = 0; i < dim; i++) {
char c = (char)('i' + i);
decl.text +=
indent + "if (size(" + args + ") != array" + indices + ".length) { resize(" + args + separator + "array" + indices + ".length); }\n" +
indent + "for (int " + c + " = 0; " + c + " < array" + indices + ".length; " + c + "++) {\n";
indent += " ";
indices += "[" + c + "]";
args += separator + c;
separator = ", ";
}
decl.text += indent + "put(" + args + separator + "array" + indices + ");\n";
for (int i = 0; i < dim; i++) {
indent = indent.substring(4);
decl.text += indent + "}\n";
}
decl.text += " return this;\n"
+ " }\n";
first = false;
}
}
if (function && decl.declarator != null) {
Declarator dcl = decl.declarator.definition.declarator;
decl.text += " public native @Name(\"operator =\") @ByRef " + containerType.javaName + " put(@ByRef " + valueType.javaName + " value);\n"
+ " public native @Name(\"operator ()\") " + dcl.type.annotations + dcl.type.javaName + " call" + dcl.parameters.list + ";\n";
}
if (info != null && info.javaText != null) {
declList.spacing = "\n ";
decl.text += declList.rescan(info.javaText) + "\n";
declList.spacing = null;
}
decl.text += "}\n";
declList.add(decl);
}
}
}
TemplateMap template(Context context) throws ParserException {
if (!tokens.get().match(Token.TEMPLATE)) {
return null;
}
TemplateMap map = new TemplateMap(context.templateMap);
tokens.next().expect('<');
for (Token token = tokens.next(); !token.match(Token.EOF); token = tokens.next()) {
if (token.match(Token.CLASS, Token.TYPENAME)) {
Token t = tokens.next();
if (t.match("...")) {
map.variadic = true;
t = tokens.next();
}
if (t.match(Token.IDENTIFIER)) {
String key = t.value;
map.put(key, map.get(key));
token = tokens.next();
}
} else if (token.match(Token.IDENTIFIER)) {
Type type = type(context); // ignore?
Token t = tokens.get();
if (t.match(Token.IDENTIFIER)) {
String key = t.value;
map.put(key, map.get(key));
token = tokens.next();
} else if (type != null) {
String key = type.cppName;
map.put(key, map.get(key));
}
}
if (!token.match(',', '>')) {
// ignore default argument
int count = 0;
for (token = tokens.get(); !token.match(Token.EOF); token = tokens.next()) {
if (count == 0 && token.match(',', '>')) {
break;
} else if (token.match('<', '(')) {
count++;
} else if (token.match('>', ')')) {
count--;
}
}
}
if (token.expect(',', '>').match('>')) {
if (tokens.next().match(Token.TEMPLATE)) {
tokens.next().expect('<');
} else {
break;
}
}
}
return map;
}
Type[] templateArguments(Context context) throws ParserException {
if (!tokens.get().match('<')) {
return null;
}
List<Type> arguments = new ArrayList<>();
for (Token token = tokens.next(); !token.match(Token.EOF); token = tokens.next()) {
if (token.match('>')) {
break;
}
Type type = type(context);
arguments.add(type);
token = tokens.get();
if (token.match('(')) {
Parameters p = parameters(context, 0, false);
if (p != null) {
// Build prototype string, without space after comma
type.cppName += "(";
String separator = "";
for (Declarator d : p.declarators) {
if (d != null) {
String s = d.type.cppName;
if (d.type.constValue && !s.startsWith("const ")) {
s = "const " + s;
}
for (int i = 0; i < d.indirections; i++) {
s += "*";
}
if (d.reference) {
s += "&";
}
if (d.rvalue) {
s += "&&";
}
if (d.type.constPointer && !s.endsWith(" const")) {
s = s + " const";
}
type.cppName += separator + s;
separator = ",";
}
}
type.cppName += ")";
token = tokens.get();
if (token.match('<')) {
// probably an actual less than, skip.
tokens.next();
token = tokens.get();
}
}
}
if (!token.match(',', '>') && type != null) {
// may not actually be a type
int count = 0;
for (token = tokens.get(); !token.match(Token.EOF); token = tokens.next()) {
if (count == 0 && token.match(',', '>')) {
break;
} else if (token.match('<', '(')) {
count++;
} else if (token.match('>', ')')) {
count--;
if (tokens.get(1).match('<')) {
// probably an actual less than
tokens.next();
}
}
for (int i = 0; i < type.indirections; i++) {
// this is not actually a type -> add back the "*"
type.cppName += "*";
}
type.indirections = 0;
type.cppName += token;
if (token.match(Token.CONST, Token.__CONST)) {
type.cppName += " ";
}
}
if (type.cppName.endsWith("*")) {
type.javaName = "PointerPointer";
type.annotations += "@Cast(\"" + type.cppName + "*\") ";
}
}
if (token.expect(',', '>').match('>')) {
break;
}
}
return arguments.toArray(new Type[0]);
}
/**
* Read and return the operator following an operator keyword:
* any of {@code new, delete, + - * / % ^ & | ~ ! = < > += -= *= /= %= ^= &= |= << >> >>= <<= == != <= >= <=>(since C++20) && || ++ -- , ->* -> ( ) [ ]}
* taking care of template arguments, if any.
*/
private String operator(Context context) throws ParserException {
String res = tokens.get().toString(); // Can be '('
int lenFirstToken = res.length();
String s = "";
tokens.next();
int backIndex = tokens.index;
for (Token token = tokens.get(); !token.match('(', ';', Token.EOF); token = tokens.next()) {
s += token;
}
s = Templates.strip(s);
tokens.index = backIndex;
for (Token token = tokens.get(); s.length() > res.length() - lenFirstToken; token = tokens.next()) {
res += token;
}
return res;
}
Type type(Context context) throws ParserException {
return type(context, false);
}
Type type(Context context, boolean definition) throws ParserException {
Type type = new Type();
List<Attribute> attributes = new ArrayList<>();
for (Token token = tokens.get(); !token.match(Token.EOF); token = tokens.get()) {
if (token.match("::")) {
Info info = infoMap.getFirst(type.cppName, false);
if (info != null && info.pointerTypes != null && info.pointerTypes.length > 0
&& !type.cppName.contains("::") && token.spacing.length() > 0) {
break;
}
type.cppName += token;
} else if (token.match(Token.DECLTYPE)) {
type.cppName += token.toString() + tokens.next().expect('(');
int count = 1;
for (token = tokens.next(); !token.match(Token.EOF); token = tokens.next()) {
if (token.match('(')) {
count++;
} else if (token.match(')')) {
count--;
}
type.cppName += token;
if (count == 0) {
break;
}
}
tokens.next();
break;
} else if (token.match('<')) {
type.arguments = templateArguments(context);
type.cppName += "<";
String separator = "";
for (Type t : type.arguments) {
if (t == null) {
// skip over variadic templates
continue;
}
type.cppName += separator;
Info info = infoMap.getFirst(t.cppName);
String s = info != null && info.cppTypes != null && info.cppTypes.length > 0 ? info.cppTypes[0] : t.cppName;
if (t.constValue && !s.startsWith("const ")) {
s = "const " + s;
}
int n = s.indexOf('(');
for (int i = 0; i < t.indirections; i++) {
if (n >= 0) {
// return value from function type
s = s.substring(0, n) + "*" + s.substring(n);
} else {
s += "*";
}
}
if (t.reference) {
if (n >= 0) {
// return value from function type
s = s.substring(0, n) + "&" + s.substring(n);
} else {
s += "&";
}
}
if (t.rvalue) {
if (n >= 0) {
// return value from function type
s = s.substring(0, n) + "&&" + s.substring(n);
} else {
s += "&&";
}
}
if (t.constPointer && !s.endsWith(" const")) {
s = s + " const";
}
type.cppName += s;
separator = ",";
}
type.cppName += type.cppName.endsWith(">") ? " >" : ">";
} else if (token.match(Token.CONST, Token.__CONST, Token.CONSTEXPR)) {
String simpleName = Templates.strip(type.cppName);
if (!simpleName.trim().contains(" ") || type.simple) {
type.constValue = true;
} else {
type.constPointer = true;
}
if (token.match(Token.CONSTEXPR)) {
type.constExpr = true;
}
} else if (token.match('*')) {
type.indirections++;
tokens.next();
break;
} else if (token.match('&')) {
type.reference = true;
tokens.next();
break;
} else if (token.match("&&")) {
type.rvalue = true;
tokens.next();
break;
} else if (token.match('~')) {
type.cppName += "~";
type.destructor = true;
} else if (token.match(Token.STATIC)) {
type.staticMember = true;
} else if (token.match(Token.OPERATOR)) {
if (type.cppName.length() == 0) {
type.operator = true;
tokens.next();
continue;
} else if (type.cppName.endsWith("::")) {
type.operator = true;
tokens.next();
type.cppName += operator(context);
continue;
} else {
break;
}
} else if (token.match(Token.USING)) {
type.using = true;
} else if (token.match(Token.FRIEND)) {
type.friend = true;
} else if (token.match(Token.TYPEDEF)) {
type.typedef = true;
} else if (token.match(Token.VIRTUAL)) {
type.virtual = true;
} else if (token.match(Token.ENUM, Token.EXPLICIT, Token.EXTERN, Token.INLINE, Token.CLASS, Token.FINAL,
Token.INTERFACE, Token.__INTERFACE, Token.MUTABLE, Token.NAMESPACE, Token.STRUCT, Token.UNION,
Token.TYPENAME, Token.REGISTER, Token.THREAD_LOCAL, Token.VOLATILE)) {
tokens.next();
continue;
} else if (token.match((Object[])infoMap.getFirst("basic/types").cppTypes) && !tokens.get(1).match('<') && (type.cppName.length() == 0 || type.simple)) {
type.cppName += token.value + " ";
type.simple = true;
} else if (token.match(Token.IDENTIFIER, "[[")) {
int backIndex = tokens.index;
Attribute attr = attribute();
if (attr != null && (attr.annotation || token.match("[["))) {
type.annotations += attr.javaName;
attributes.add(attr);
continue;
} else {
tokens.index = backIndex;
if (type.cppName.length() == 0 || type.cppName.endsWith("::") || type.cppName.endsWith("~")) {
type.cppName += token.value;
} else if (type.cppName.endsWith("::template")) {
type.cppName += " " + token.value;
} else {
Info info = infoMap.getFirst(tokens.get(1).value);
if ((info != null && info.annotations != null) ||
!tokens.get(1).match('*', '&', Token.IDENTIFIER, Token.CONST, Token.__CONST, Token.CONSTEXPR, Token.FINAL)) {
// we probably reached a variable or function name identifier
break;
}
}
}
} else {
if (token.match('}')) {
type.anonymous = true;
tokens.next();
}
break;
}
tokens.next();
}
if (attributes.size() > 0) {
type.attributes = attributes.toArray(new Attribute[0]);
}
type.cppName = type.cppName.trim();
if (tokens.get().match("...")) {
// skip over variable arguments
tokens.next();
boolean paren;
if (paren = tokens.get().match('(')) {
tokens.next();
}
if (tokens.get().match(Token.IDENTIFIER)) {
// skip over template parameter packs as well
tokens.next();
}
if (paren && tokens.get().match(')')) {
tokens.next();
}
return null;
} else if (type.operator) {
for (Token token = tokens.get(); !token.match(Token.EOF, '(', ';'); token = tokens.next()) {
type.cppName += token;
}
}
// remove * and & to query template map
if (type.cppName.endsWith("*")) {
type.indirections++;
type.cppName = type.cppName.substring(0, type.cppName.length() - 1);
}
if (type.cppName.endsWith("&")) {
type.reference = true;
type.cppName = type.cppName.substring(0, type.cppName.length() - 1);
}
if (type.cppName.endsWith("&&")) {
type.rvalue = true;
type.cppName = type.cppName.substring(0, type.cppName.length() - 2);
}
// perform template substitution
if (context.templateMap != null) {
List<String> types = Templates.splitNamespace(type.cppName, true);
String separator = "";