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X-definition 4.2 (Open Source Software)
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package org.xdef.impl.compile;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.xdef.XDBNFGrammar;
import org.xdef.XDBNFRule;
import org.xdef.XDConstants;
import org.xdef.XDContainer;
import org.xdef.XDNamedValue;
import org.xdef.XDParser;
import org.xdef.XDValue;
import static org.xdef.XDValueID.XD_ANY;
import static org.xdef.XDValueID.XD_BIGINTEGER;
import static org.xdef.XDValueID.XD_BNFGRAMMAR;
import static org.xdef.XDValueID.XD_BNFRULE;
import static org.xdef.XDValueID.XD_BOOLEAN;
import static org.xdef.XDValueID.XD_CHAR;
import static org.xdef.XDValueID.XD_CONTAINER;
import static org.xdef.XDValueID.XD_DATETIME;
import static org.xdef.XDValueID.XD_DECIMAL;
import static org.xdef.XDValueID.XD_DOUBLE;
import static org.xdef.XDValueID.XD_DURATION;
import static org.xdef.XDValueID.XD_ELEMENT;
import static org.xdef.XDValueID.XD_INPUT;
import static org.xdef.XDValueID.XD_LOCALE;
import static org.xdef.XDValueID.XD_LONG;
import static org.xdef.XDValueID.XD_NAMEDVALUE;
import static org.xdef.XDValueID.XD_NULL;
import static org.xdef.XDValueID.XD_OUTPUT;
import static org.xdef.XDValueID.XD_PARSER;
import static org.xdef.XDValueID.XD_PARSERESULT;
import static org.xdef.XDValueID.XD_REPORT;
import static org.xdef.XDValueID.XD_SERVICE;
import static org.xdef.XDValueID.XD_STATEMENT;
import static org.xdef.XDValueID.XD_STRING;
import static org.xdef.XDValueID.XD_UNDEF;
import static org.xdef.XDValueID.XD_VOID;
import static org.xdef.XDValueID.XD_XPATH;
import static org.xdef.XDValueID.X_ATTR_REF;
import static org.xdef.XDValueID.X_NOTYPE_VALUE;
import org.xdef.impl.XDebugInfo;
import org.xdef.impl.XVariableTable;
import org.xdef.impl.code.CodeExtMethod;
import org.xdef.impl.code.CodeI1;
import org.xdef.impl.code.CodeOp;
import org.xdef.impl.code.CodeParser;
import org.xdef.impl.code.CodeS1;
import org.xdef.impl.code.DefBNFGrammar;
import org.xdef.impl.code.DefBigInteger;
import org.xdef.impl.code.DefBoolean;
import org.xdef.impl.code.DefChar;
import org.xdef.impl.code.DefContainer;
import org.xdef.impl.code.DefDate;
import org.xdef.impl.code.DefDecimal;
import org.xdef.impl.code.DefDouble;
import org.xdef.impl.code.DefLocale;
import org.xdef.impl.code.DefLong;
import org.xdef.impl.code.DefNull;
import org.xdef.impl.code.DefRegex;
import org.xdef.impl.code.DefString;
import org.xdef.impl.code.DefXPathExpr;
import org.xdef.impl.code.DefXQueryExpr;
import org.xdef.impl.ext.XExtUtils;
import org.xdef.impl.parsers.XDParseCDATA;
import org.xdef.impl.parsers.XDParseFalse;
import org.xdef.impl.parsers.XDParseTrue;
import org.xdef.impl.xml.KNamespace;
import org.xdef.model.XMVariable;
import org.xdef.msg.SYS;
import org.xdef.msg.XDEF;
import org.xdef.msg.XML;
import org.xdef.proc.XDLexicon;
import org.xdef.proc.XXData;
import org.xdef.proc.XXElement;
import org.xdef.proc.XXNode;
import org.xdef.sys.Report;
import org.xdef.sys.SBuffer;
import org.xdef.sys.SPosition;
import org.xdef.sys.SRuntimeException;
import org.xdef.sys.SThrowable;
import org.xdef.sys.StringParser;
import static org.xdef.XDValueID.X_PARSEITEM;
import static org.xdef.XDValueID.X_UNIQUESET;
import static org.xdef.XDValueID.X_UNIQUESET_KEY;
import static org.xdef.XDValueID.X_UNIQUESET_M;
import static org.xdef.XDValueID.X_UNIQUESET_NAMED;
import static org.xdef.impl.code.CodeTable.ATTR_EXIST;
import static org.xdef.impl.code.CodeTable.ATTR_REF;
import static org.xdef.impl.code.CodeTable.BNFRULE_PARSE;
import static org.xdef.impl.code.CodeTable.CALL_OP;
import static org.xdef.impl.code.CodeTable.CHECK_TYPE;
import static org.xdef.impl.code.CodeTable.CMPEQ;
import static org.xdef.impl.code.CodeTable.CMPGE;
import static org.xdef.impl.code.CodeTable.CMPGT;
import static org.xdef.impl.code.CodeTable.CMPLE;
import static org.xdef.impl.code.CodeTable.CMPLT;
import static org.xdef.impl.code.CodeTable.CMPNE;
import static org.xdef.impl.code.CodeTable.COMPILE_REGEX;
import static org.xdef.impl.code.CodeTable.CONTEXT_GETTEXT;
import static org.xdef.impl.code.CodeTable.CREATE_ELEMENT;
import static org.xdef.impl.code.CodeTable.CREATE_ELEMENTS;
import static org.xdef.impl.code.CodeTable.CREATE_NAMEDVALUE;
import static org.xdef.impl.code.CodeTable.DATE_FORMAT;
import static org.xdef.impl.code.CodeTable.DEL_ATTR;
import static org.xdef.impl.code.CodeTable.EQUALS_OP;
import static org.xdef.impl.code.CodeTable.EXTMETHOD;
import static org.xdef.impl.code.CodeTable.EXTMETHOD_CHKEL_XDARRAY;
import static org.xdef.impl.code.CodeTable.EXTMETHOD_XDARRAY;
import static org.xdef.impl.code.CodeTable.EXTMETHOD_XXNODE;
import static org.xdef.impl.code.CodeTable.EXTMETHOD_XXNODE_XDARRAY;
import static org.xdef.impl.code.CodeTable.FLOAT_FORMAT;
import static org.xdef.impl.code.CodeTable.FORMAT_STRING;
import static org.xdef.impl.code.CodeTable.FROM_ELEMENT;
import static org.xdef.impl.code.CodeTable.GETATTR_FROM_CONTEXT;
import static org.xdef.impl.code.CodeTable.GETELEMS_FROM_CONTEXT;
import static org.xdef.impl.code.CodeTable.GETELEM_FROM_CONTEXT;
import static org.xdef.impl.code.CodeTable.GET_ATTR;
import static org.xdef.impl.code.CodeTable.GET_ATTR_NAME;
import static org.xdef.impl.code.CodeTable.GET_BNFRULE;
import static org.xdef.impl.code.CodeTable.GET_DBQUERY;
import static org.xdef.impl.code.CodeTable.GET_ELEMENT;
import static org.xdef.impl.code.CodeTable.GET_NS;
import static org.xdef.impl.code.CodeTable.GET_XPATH;
import static org.xdef.impl.code.CodeTable.GET_XPATH_FROM_SOURCE;
import static org.xdef.impl.code.CodeTable.GET_XQUERY;
import static org.xdef.impl.code.CodeTable.HAS_ATTR;
import static org.xdef.impl.code.CodeTable.INTEGER_FORMAT;
import static org.xdef.impl.code.CodeTable.JMPEQ;
import static org.xdef.impl.code.CodeTable.JMPF_OP;
import static org.xdef.impl.code.CodeTable.JMPGE;
import static org.xdef.impl.code.CodeTable.JMPGT;
import static org.xdef.impl.code.CodeTable.JMPLE;
import static org.xdef.impl.code.CodeTable.JMPLT;
import static org.xdef.impl.code.CodeTable.JMPNE;
import static org.xdef.impl.code.CodeTable.JMPT_OP;
import static org.xdef.impl.code.CodeTable.JMP_OP;
import static org.xdef.impl.code.CodeTable.LD_CODE;
import static org.xdef.impl.code.CodeTable.LD_CONST;
import static org.xdef.impl.code.CodeTable.LD_GLOBAL;
import static org.xdef.impl.code.CodeTable.LD_LOCAL;
import static org.xdef.impl.code.CodeTable.LD_TRUE_AND_SKIP;
import static org.xdef.impl.code.CodeTable.LD_XMODEL;
import static org.xdef.impl.code.CodeTable.NEW_BNFGRAMAR;
import static org.xdef.impl.code.CodeTable.NEW_CONTAINER;
import static org.xdef.impl.code.CodeTable.NEW_LOCALE;
import static org.xdef.impl.code.CodeTable.NEW_PARSER;
import static org.xdef.impl.code.CodeTable.NOT_B;
import static org.xdef.impl.code.CodeTable.NULL_OR_TO_STRING;
import static org.xdef.impl.code.CodeTable.OUT1_STREAM;
import static org.xdef.impl.code.CodeTable.OUTLN1_STREAM;
import static org.xdef.impl.code.CodeTable.OUTLN_STREAM;
import static org.xdef.impl.code.CodeTable.OUT_STREAM;
import static org.xdef.impl.code.CodeTable.PARSEANDCHECK;
import static org.xdef.impl.code.CodeTable.PARSERESULT_MATCH;
import static org.xdef.impl.code.CodeTable.PARSE_DATE;
import static org.xdef.impl.code.CodeTable.PARSE_FLOAT;
import static org.xdef.impl.code.CodeTable.PARSE_INT;
import static org.xdef.impl.code.CodeTable.PARSE_OP;
import static org.xdef.impl.code.CodeTable.POP_OP;
import static org.xdef.impl.code.CodeTable.PRINTF_STREAM;
import static org.xdef.impl.code.CodeTable.PUT_ERROR;
import static org.xdef.impl.code.CodeTable.PUT_ERROR1;
import static org.xdef.impl.code.CodeTable.SET_ATTR;
import static org.xdef.impl.code.CodeTable.SET_ELEMENT;
import static org.xdef.impl.code.CodeTable.SET_NAMEDVALUE;
import static org.xdef.impl.code.CodeTable.STACK_DUP;
import static org.xdef.impl.code.CodeTable.STACK_TO_CONTAINER;
import static org.xdef.impl.code.CodeTable.STOP_OP;
import static org.xdef.impl.code.CodeTable.ST_GLOBAL;
import static org.xdef.impl.code.CodeTable.ST_LOCAL;
import static org.xdef.impl.code.CodeTable.ST_XMODEL;
import static org.xdef.impl.code.CodeTable.TO_BIGINTEGER_X;
import static org.xdef.impl.code.CodeTable.TO_BOOLEAN;
import static org.xdef.impl.code.CodeTable.TO_CHAR_X;
import static org.xdef.impl.code.CodeTable.TO_DECIMAL_X;
import static org.xdef.impl.code.CodeTable.TO_FLOAT;
import static org.xdef.impl.code.CodeTable.TO_FLOAT_X;
import static org.xdef.impl.code.CodeTable.TO_INT_X;
import static org.xdef.impl.code.CodeTable.TO_MILLIS;
import static org.xdef.impl.code.CodeTable.TO_STRING;
import static org.xdef.impl.code.CodeTable.UNIQUESET_BIND;
import static org.xdef.impl.compile.CompileBase.NO_MODE;
import static org.xdef.impl.compile.CompileBase.TEXT_MODE;
import static org.xdef.impl.compile.CompileBase.UNDEF_CODE;
import static org.xdef.impl.compile.CompileBase.genInternalMethod;
import static org.xdef.impl.compile.CompileBase.getClassTypeID;
import static org.xdef.impl.compile.CompileBase.getParser;
import static org.xdef.impl.compile.CompileBase.getTypeClass;
import static org.xdef.impl.compile.CompileBase.getTypeId;
import static org.xdef.impl.compile.CompileBase.getTypeMethod;
import static org.xdef.impl.compile.CompileBase.getTypeName;
/** Generation of compiler objects - variables, methods etc.
* @author Trojan
*/
public final class CompileCode extends CompileBase {
/** Internal stack size. */
private final static int STACK_SIZE = 512; //20 for tests is enough!
/** The parser (just for error reporting). */
XScriptParser _parser;
/** * Mode of compilation:
* NO_MODE ... no mode
* TEXT_MODE ... text events
* ELEM_MODE ... element events
* GLOBAL_MODE ... global definitions
* ANY_MODE ... all modes
*/
byte _mode;
/** Internal stack with item types. */
short[] _tstack;
/** Internal stack with indexes to code constants
* or -1 if stack item is a value, or -2 if optimizing is not allowed). */
int[] _cstack;
/** Stack pointer (index to stack or -1). */
int _sp;
/** Max. stack pointer. */
int _spMax;
/** Index to last code item. */
int _lastCodeIndex;
/** Address of code initialization. */
int _init;
/** End address of code initialization. */
private int _initEnd;
/** Actual index to last local variable. */
int _localVariablesLastIndex;
/** Highest reached index to local variables. */
int _localVariablesMaxIndex;
/** Switch to ignore unresolved externals */
boolean _ignoreUnresolvedExternals;
/** Mode of external method interface: 0 - both modes, 1 - old, 2 - new. */
private final int _externalMode;
/** Flag if warnings should be checked.*/
boolean _chkWarnings;
/** Debug mode. */
boolean _debugMode;
/** Array of external classes. */
Class[] _extClasses;
/** Compiled code. */
final List _code;
/** Table of local variables. */
Map _localVariables;
/** External methods. */
private final Map _extMethods;
/** Array of declared external methods. */
private final List _declaredMethods;
/** List of actual NameSpace prefixes. */
Map _nsPrefixes;
/** Table of NameSpace URIs. */
final List _namespaceURIs;
/** Table of script methods */
private final Map _scriptMethods;
/** Table of script global variables. */
XVariableTable _globalVariables;
/** Variables block. */
XVariableTable _varBlock;
/** Size of size of predefined global variables. */
private final int _globalPredefSize;
/** Debug information. */
XDebugInfo _debugInfo = null;
/** Components. */
final Map _components = new LinkedHashMap<>();
/** Binds. */
final Map _binds = new LinkedHashMap<>();
/** Enumerations. */
final Map _enums = new LinkedHashMap<>();
/** XDLexicon object (null if not specified). */
XDLexicon _lexicon = null;
/** Flag if external method should be searched. */
private boolean _ignoreExternalMethods;
/** Flag bindSet method is allowed. */
boolean _allowBindSet = false;
/* Error id (to ensure to generate the unique identifier).*/
private int _errIdIndex = 1000;
/** Creates a new instance of GenCodeObj.
* @param extClasses Array of external classes.
* @param externalMode id of mode external methods (old=1, new=2, both=0).
* @param chkWarnings if false warnings are generated as error.
* @param debugMode debug mode flag.
* @param ignoreUnresolvedExternals ignore unresolved externals flag.
*/
CompileCode(final Class[] extClasses,
final int externalMode,
final boolean chkWarnings,
final boolean debugMode,
final boolean ignoreUnresolvedExternals) {
// _spMax = 0; _parser = null; //java makes it
_ignoreUnresolvedExternals = ignoreUnresolvedExternals;
_externalMode = externalMode;
_chkWarnings = chkWarnings;
_debugMode = debugMode;
_tstack = new short[STACK_SIZE];
_cstack = new int[STACK_SIZE];
_sp = -1;
_lastCodeIndex = -1;
_code = new ArrayList<>();
_localVariables = new LinkedHashMap<>();
_extMethods = new LinkedHashMap<>();
_declaredMethods = new ArrayList<>();
_scriptMethods = new LinkedHashMap<>();
_namespaceURIs = new ArrayList<>();
_globalVariables = _varBlock = new XVariableTable(null, 0);
_localVariablesLastIndex = -1;
_localVariablesMaxIndex = -1;
_mode = NO_MODE;
setExternals(extClasses); //external classes and/or objects
_init = _initEnd = -1;
//predefined global variables
CompileVariable var = new CompileVariable("$stdOut",
XD_OUTPUT, _globalVariables.getNextOffset(), (byte) 'G', null);
var.setInitialized(true);
_globalVariables.addVariable(var);
var = new CompileVariable("$stdErr",
XD_OUTPUT, _globalVariables.getNextOffset(), (byte) 'G', null);
var.setInitialized(true);
_globalVariables.addVariable(var);
var = new CompileVariable("$stdIn",
XD_INPUT, _globalVariables.getNextOffset(), (byte) 'G', null);
var.setInitialized(true);
_globalVariables.addVariable(var);
var = new CompileVariable("$IDParser$", // use only internally
XD_PARSER, _globalVariables.getNextOffset(), (byte) 'G', null);
var.setInitialized(true); // prevent to report errors
_globalVariables.addVariable(var);
var = new CompileVariable("$IDuniqueSet$", // use only internally
X_UNIQUESET_M, _globalVariables.getNextOffset(), (byte) 'G', null);
var.setInitialized(true); // prevent to report errors
_globalVariables.addVariable(var);
_globalPredefSize = _globalVariables.getLastOffset();
}
/** Reinitialize fields to prepare the recompilation of code. */
final void reInit() {
clearLocalVariables();
_localVariablesMaxIndex = -1;
_code.clear();
_lastCodeIndex = -1;
_init = _initEnd = -1;
_sp = -1;
_spMax = 0;
_globalVariables.setLastOffset(_globalPredefSize);
for (ScriptMethod sm : _scriptMethods.values()) {
sm.setAddr(-1);
}
for (XMVariable xmv: _globalVariables.toArray()) {
CompileVariable v = (CompileVariable) xmv;
if (v.getOffset() >= _globalPredefSize && !v.isConstant()) {
//not predeclared
v.setOffset(-1);
v.setInitialized(false);
}
}
}
/** Gen error identifier.*/
final String genErrId() {return "#UNDEF#" + _errIdIndex++;}
/** Set XScriptParser. */
final void setParser(final XScriptParser parser) {_parser = parser;}
/** Clear local variables. */
final void clearLocalVariables() {
_localVariables.clear();
_localVariablesLastIndex = -1;
}
/** Set flag to ignore external methods.
* @param b flag to ignore external methods.
*/
final void setIgnoreExternalMethods(final boolean b) {
_ignoreExternalMethods = b;
}
/** Add new variable of given name.
* @param name the name of variable.
* @param kind the variable kind ('G': global, 'L': local, 'X': XModel).
* @param spos source position where the variable was declared.
* @return the CompileVariable object.
*/
final CompileVariable addVariable(final String name,
final short type,
final byte kind,
final SPosition spos) {
if (type != X_PARSEITEM && getTypeId(name) >= 0) {
//Type identifier '&{0}' can't be used here
_parser.error(XDEF.XDEF463, name);
return new CompileVariable("?", type, -1, (byte) 'L', spos);
}
CompileVariable result = null;
switch (kind) {
case 'G':
result = (CompileVariable) _globalVariables.getVariable(name);
if (result == null) {
result = new CompileVariable(name,
type, _globalVariables.getNextOffset(), kind, spos);
_globalVariables.addVariable(result);
return result;
} else {
if (result.getOffset() == -1) {
if (result.resolvePostDef(
_globalVariables.getNextOffset(), this)) {
return result;
}
}
}
break;
case 'X':
if (_varBlock.getVariable(name) == null) {
result = new CompileVariable(name,
type, _varBlock.getNextOffset(), kind, spos);
if (_varBlock.addVariable(result)) {
return result;
}
}
break;
case 'L':
result = _localVariables.get(name);
if (result == null) {
result = new CompileVariable(name, type,
++_localVariablesLastIndex, kind, spos);
_localVariables.put(name, result);
if (_localVariablesLastIndex > _localVariablesMaxIndex) {
_localVariablesMaxIndex = _localVariablesLastIndex;
}
return result;
}
break;
default:
//Internal error&{0}{: }
throw new SRuntimeException(SYS.SYS066, "variable kind: "+kind);
}
//Repeated declaration of variable '&{0}'&{#SYS000}&{1}
//({; (already declared: }{)}
putRedefinedError(null, XDEF.XDEF450,
name, result == null ? null : result.getSourcePosition());
return (result != null && result.getName().equals(name)
&& result.getType() == type)
? result : new CompileVariable("?", type, -1, (byte) 'L', null);
}
/** Put error with the first declared item position.
* @param actpos the actual source position or null.
* @param id message ID.
* @param name name of item.
* @param sp Source position of declared item or null.
*/
final void putRedefinedError(final SPosition actpos,
final long id,
final String name,
final SPosition sp) {
String s = null;
if (sp != null) {
s = "line="+ sp.getLineNumber() + "; column=" + sp.getColumnNumber()
+ "; source=\"" + sp.getSystemId() + '"';
}
//Redefinition of item '&{0}'&{#SYS000}&{1}({; (see: }{)}
if (actpos == null) {
_parser.error(id, name, s); //Redefinition of variable '&{0}'
} else {
_parser.error(actpos, id, name,s); //Redefinition of variable '&{0}'
}
}
/** Check all unresolved declarations and try to resolve them. */
final void clearPostdefines() {
for (ScriptMethod gm: _scriptMethods.values()) {
gm.clearPostdefs(); //(should be already clear)
}
for (XMVariable xmv: _globalVariables.toArray()) {
((CompileVariable) xmv).clearPostdefs();// (should be already clear)
}
}
/** Create string with list of parameter types from parameter list.
* @param paramTypes list of types of parameters.
* @return list of parameters converted to characters.
*/
private static String typeList(final short[] paramTypes) {
if (paramTypes.length == 0) {
return "";
}
StringBuilder sb = new StringBuilder(paramTypes.length + 1).append('(');
for (int i = 0; i < paramTypes.length; i++) {
if (i > 0) {
sb.append(',');
}
sb.append((char) paramTypes[i] + ' ');
}
return sb.append(')').toString();
}
/** Create string with list of parameter types from stack.
* @param numPar number of parameters.
* @return string with characters of parameter types.
*/
private String typeList(final int numPar) {
if (numPar == 0) {
return "";
}
StringBuilder sb = new StringBuilder(numPar + 1).append('(');
for (int i = _sp - numPar + 1, j = i; i <= _sp; i++) {
if (i > j) {
sb.append(',');
}
sb.append((char) _tstack[i] + ' ');
}
return sb.append(')').toString();
}
/** Set external classes. Adds externals to the list.
* @param extObjects Array of external classes.
*/
final void setExternals(final Class... extObjects) {
if (_extClasses == null) {
_extClasses = _extClasses = new Class[0];
}
if (extObjects != null && extObjects.length > 0) {
List> ar =
new ArrayList<>(Arrays.asList(_extClasses));
for (Class x: extObjects) {
if (x != null && !ar.contains(x)) {
ar.add(x);
}
}
if (ar.size() != _extClasses.length) {
_extClasses = ar.toArray(_extClasses);
}
}
}
/** Check if given identifier refers to a variable.
* @param name The identifier of variable.
* @return true if identifier refers to a variable.
*/
final boolean isVariable(final String name) {
if (_localVariables.containsKey(name)) {
return true;
}
if (_varBlock == null) {
return false;
}
CompileVariable var = (CompileVariable)_varBlock.getXVariable(name);
if (var == null || var.getKind() == 'G') {
for (String s: _parser._importLocals) {
CompileVariable v =
(CompileVariable) _varBlock.getXVariable(s + name);
if (v != null) {
var = v;
break;
}
}
}
if (var != null) {
if (var.getOffset() == -1) {
return false;
}
}
return var != null;
}
/* Get declared variable.
* @param name The name of variable.
* @return declared variable or null.
*/
final CompileVariable getVariable(final String name) {
CompileVariable var;
var = _localVariables.get(name);
if (var == null && _varBlock != null) {
var = (CompileVariable) _varBlock.getXVariable(name);
if (var == null || var.getKind() == 'G') {
for (String s: _parser._importLocals) {
CompileVariable v =
(CompileVariable) _varBlock.getXVariable(s + name);
if (v != null) {
var = v;
break;
}
}
}
if (var != null) {
if (var.getOffset() == -1) {
return null;
}
}
}
return var;
}
/** Get last code item. */
final XDValue getLastCodeItem() {return getCodeItem(_lastCodeIndex);}
/** Remove last code item. */
final XDValue removeLastCodeItem() {return _code.remove(_lastCodeIndex--);}
final XDValue getCodeItem(final int addr) {
return (addr < 0 || addr >= _code.size()) ? null : _code.get(addr);
}
/** Replace last code item with new item.
* @param item item which will replace the existing one.
*/
final void replaceLastCodeItem(final XDValue item) {
if (_lastCodeIndex >= 0) {
_code.set(_lastCodeIndex, item);
}
}
/** Set code item on given index of code array.
* @param index index to code array.
* @param item item which will replace the existing one.
*/
final void setCodeItem(final int index, final XDValue item) {
_code.set(index, item);
}
/** Replace last code item with the item given by argument. The code
* of the item is changing the type of the top of the stack.
* @param item The item which replaces the last code item.
*/
final void replaceTop(final XDValue item) {
_tstack[_sp] = item.getItemId();
_code.set(_lastCodeIndex, item);
_cstack[_sp] = (item.getCode() == LD_CONST) ? _lastCodeIndex : -1;
}
/** Replace two last code items with the item given by argument. The code
* of the item is changing the type of the top of the stack.
* @param item The item which replaces the last two code items.
*/
final void replaceTwo(final XDValue item) {
_code.remove(_lastCodeIndex--);
_sp--;
replaceTop(item);
}
/** Create new undefined method.
* @param name The name.
* @param numPar Number of parameters.
* @return undefined method object.
*/
private CodeExtMethod crtUndefMethod(final String name, final int numPar) {
return new CodeExtMethod(name,
XD_UNDEF, CompileCode.UNDEF_CODE, numPar, null);
}
/** Add code (stack not changed).
* @param item The item to be added
* throws SRuntimeException if stack overflow error occurs.
*/
final void addCode(final XDValue item) {
_code.add(++_lastCodeIndex, item);
}
/** Add code (update stack pointer).
* @param item The item to be added
* @param stackInc Increment of the stack after execution of this item.
* throws SRuntimeException if stack overflow error occurs.
*/
final void addCode(final XDValue item, final int stackInc) {
addCode(item);
if ((_sp += stackInc) > _spMax) {
if (_sp >= STACK_SIZE) {
//Overflow of compiler internal stack
_parser.error(XDEF.XDEF204);
_sp -= stackInc;
return;
}
_spMax = _sp;
}
short type;
if ((type = item.getItemId()) != XD_VOID) {//result is not void
if (_sp >= 0) {
_tstack[_sp] = type;
_cstack[_sp] = (item.getCode()==LD_CONST) ? _lastCodeIndex : -1;
}
}
}
/** Add global method.
* @param resultType The result type of method.
* @param name The method name.
* @param address The code index of method start.
* @param params Array of parameters types.
* @param mode The mode of method.
* @param spos source position where the variable was declared.
*/
final void addMethod(final short resultType,
final String name,
final int address,
final short[] params,
final short mode,
final SPosition spos) {
String extName = name + typeList(params);
ScriptMethod gm = _scriptMethods.get(extName);
if (gm == null) {
_scriptMethods.put(extName,
new ScriptMethod(resultType, address, params, mode, spos));
} else if (!gm.resolvePostDef(address, this)) {
//Repeated declaration of method '&{0}'&{#SYS000}&{1}
//({; (already declared: }{)}
putRedefinedError(null, XDEF.XDEF462,
name, gm.getSourcePosition());
}
}
final Method addDeclaredMethod(final String name, final Method method) {
Method m;
if ((m = getDeclaredMethod(name, method.getParameterTypes())) != null) {
return m; //ignore repeated declarations
}
_declaredMethods.add(new ExternalMethod(name, method));
return null;
}
private Method getDeclaredMethod(final String name,final Class[] params){
for (ExternalMethod d: _declaredMethods) {
if (d.isMethod(name, params)) {
return d.getMethod();
}
}
return null;
}
/** Find external method in the class and in super classes.
* @param clazz Class to be inspected.
* @name name of method.
* @name parameters list of classes of parameters.
* @return method or null.
*/
final Method getExtMethod(final Class clazz,
final String name,
final Class[] params) {
if (clazz != null) {
Method[] methods = clazz.getMethods();
for (Method m: methods) {
if (name.equals(m.getName())
&& (m.getModifiers() & Modifier.PUBLIC) != 0) {
Class[] p = m.getParameterTypes();
if (p.length == params.length) {
boolean paramsOK = true;
for (int j = 0; j < p.length; j++) {
Class param = params[j];
Class par = p[j];
if (!param.equals(par)) {
if (!((param.equals(long.class)
|| param.equals(Long.class))
&& (par.equals(Long.class)
|| par.equals(long.class)
|| par.equals(Integer.class)
|| par.equals(int.class)))
&& !((param.equals(double.class)
|| param.equals(double.class))
&& (par.equals(Double.class)
|| par.equals(double.class)
|| par.equals(Float.class)
|| par.equals(float.class)))
&& !((param.equals(boolean.class)
|| param.equals(Boolean.class))
&& (par.equals(boolean.class)
|| par.equals(Boolean.class)))) {
paramsOK = false;
break;
}
}
}
if (paramsOK) {
return m;
}
}
}
}
return null;
}
for (String s: _parser._importLocals) {
Method m = getDeclaredMethod(s + name, params);
if (m != null) {
return m;
}
}
return getDeclaredMethod(name, params);
}
/** Find external method in given class.
* @param name The name of method.
* @param numPar Number of parameters.
* @param clazz The class.
* @param obj instantiated object or null.
* @return The object with external method call.
*/
final CodeExtMethod findExternalMethod(final String name,
final int numPar,
final Class clazz,
final Object obj) {
int modifiers;
Method m = null; //static
Method m1 = null; //not static
short resultType = XD_UNDEF;
short code = UNDEF_CODE;
if (m == null && _externalMode != 1) {//new or both
// 2.new style, params: type m([p1[,p2[, ... ]]])
Class[] params = new Class[numPar];
for (int j = 0; j < numPar; j++) {
Class c = getTypeClass(
(short) (_tstack[_sp - numPar+j+1] - XD_LONG + 1));
params[j] = c;
}
if ((m = getExtMethod(clazz, name, params)) != null) {
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
} else {
if ((resultType = getClassTypeID(m.getReturnType())) ==
XD_UNDEF) {
code = UNDEF_CODE;
m = null;
} else {
code = EXTMETHOD;
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
}
}
}
}
}
if (m == null && _externalMode != 1) {//new
//new style, ChkElement and array: type m(ChkElement, DefItem[])
if ((m = getExtMethod(clazz, name,
new Class[] {XXElement.class, XDValue[].class})) != null) {
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
} else {
if ((resultType = getClassTypeID(m.getReturnType())) ==
XD_UNDEF) {
code = UNDEF_CODE;
m = null;
} else {
code = EXTMETHOD_CHKEL_XDARRAY;
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
}
}
}
}
if (m == null && (m = getExtMethod(clazz, name, new Class[] {
XXNode.class,
XDValue[].class})) != null) {
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
} else {
if ((resultType = getClassTypeID(m.getReturnType())) ==
XD_UNDEF) {
code = UNDEF_CODE;
m = null;
} else {
code = EXTMETHOD_XXNODE_XDARRAY;
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
}
}
}
}
if (m == null && (m = getExtMethod(clazz, name, new Class[] {
XXData.class, XDValue[].class})) != null) {
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
} else {
if ((resultType = getClassTypeID(m.getReturnType())) ==
XD_UNDEF) {
code = UNDEF_CODE;
m = null;
} else {
code = EXTMETHOD_XXNODE_XDARRAY;
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC)==0 && obj==null) {
m1 = m;
m = null;
}
}
}
}
if (m == null && (m = getExtMethod(clazz, name, new Class[] {
XDValue[].class})) != null) {
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
} else {
if ((resultType = getClassTypeID(m.getReturnType())) ==
XD_UNDEF) {
code = UNDEF_CODE;
m = null;
} else {
code = EXTMETHOD_XDARRAY;
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
}
}
}
}
}
if (m == null && _externalMode != 1) {//new
//new style, XXNode and params: type m(XXNode[,p[,...]])
Class[] params = new Class[numPar + 1];
params[0] = XXNode.class;
for (int j = 0; j < numPar; j++) {
params[j + 1] = getTypeClass(
(short) (_tstack[_sp-numPar+j+1] - XD_LONG + 1));
}
if ((m = getExtMethod(clazz, name, params)) != null) {
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
} else {
if ((resultType = getClassTypeID(m.getReturnType())) ==
XD_UNDEF) {
code = UNDEF_CODE;
m = null;
} else {
code = EXTMETHOD_XXNODE;
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
}
}
}
}
if (m == null) {
params[0] = XXElement.class;
if ((m = getExtMethod(clazz, name, params)) != null) {
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
} else {
if ((resultType=getClassTypeID(m.getReturnType())) ==
XD_UNDEF) {
code = UNDEF_CODE;
m = null;
} else {
code = EXTMETHOD_XXNODE;
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC)==0 && obj==null) {
m1 = m;
m = null;
}
}
}
} else {
params[0] = XXData.class;
if ((m = getExtMethod(clazz, name, params)) != null) {
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 && obj == null) {
m1 = m;
m = null;
} else {
if ((resultType = getClassTypeID(m.getReturnType()))
== XD_UNDEF) {
code = UNDEF_CODE;
m = null;
} else {
code = EXTMETHOD_XXNODE;
modifiers = m.getModifiers();
if ((modifiers & Modifier.STATIC) == 0 &&
obj == null) {
m1 = m;
m = null;
}
}
}
}
}
}
}
if (m == null) {
if (m1 != null) {
//External method '&{0}' must be 'static' and 'public'
_parser.error(XDEF.XDEF466, m1.getName());
m = m1;
}
}
if (m != null) {
return new CodeExtMethod(m.getDeclaringClass().getName()+'.'+name,
resultType, code, numPar, m);
}
return null;
}
/** Get NameSpace context of this XElement. */
final KNamespace getXDNamespaceContext() {
KNamespace result = new KNamespace();
for (Map.Entry item : _nsPrefixes.entrySet()) {
String key = item.getKey();
if ("xml".equals(key) || "xmlns".equals(key)
|| XDConstants.XDEF31_NS_URI.equals(
_namespaceURIs.get(item.getValue()))
|| XDConstants.XDEF32_NS_URI.equals(
_namespaceURIs.get(item.getValue()))
|| XDConstants.XDEF40_NS_URI.equals(
_namespaceURIs.get(item.getValue()))
|| XDConstants.XDEF41_NS_URI.equals(
_namespaceURIs.get(item.getValue()))
|| XDConstants.XDEF42_NS_URI.equals(
_namespaceURIs.get(item.getValue()))) {
continue;
}
result.setPrefix(key, _namespaceURIs.get(item.getValue()));
}
return result;
}
/** Generate "stop" operation. */
final void genStop() {addCode(new CodeI1(XD_VOID, STOP_OP));}
/** Add code for load attribute name.
* @param name an attribute name. */
final void genLDAttr(final String name) {
addCode(new CodeS1(XD_STRING, ATTR_REF, name));
if (++_sp > _spMax) {
if (_sp >= STACK_SIZE) {
//Overflow of compiler internal stack
_parser.error(XDEF.XDEF204);
_sp--;
return;
}
_spMax = _sp;
}
_tstack[_sp] = X_ATTR_REF;
_cstack[_sp] = -1;
}
/** Add code for load constant.
* @param item The item to be added
*/
final void genLDC(final XDValue item) {
addCode(item);
if (++_sp > _spMax) {
if (_sp >= STACK_SIZE) {
//Overflow of compiler internal stack
_parser.error(XDEF.XDEF204);
_sp--;
return;
}
_spMax = _sp;
}
_tstack[_sp] = item.getItemId();
_cstack[_sp] = _lastCodeIndex;
}
/** Add code for load variable.
* @param name The name of local variable.
* @return false if variable not exists.
*/
final boolean genLD(final String name) {
CompileVariable var = getVariable(name);
return var == null ? false : genLD(var);
}
/** Add code for load variable.
* @param name The name of local variable.
* @return false if variable not exists.
*/
final boolean genLD(final CompileVariable var) {
short xType = var.getType();
if (xType == X_UNIQUESET_KEY) {
return false;
}
if (!var.isInitialized()) {
if (xType != X_PARSEITEM) {
//Variable '&{0}' might be not initialized
_parser.error(XDEF.XDEF464, var.getName());
}
}
short code;
int addr = var.getOffset();
byte kind = var.getKind();
if (var.getCodeAddr() >= 0 && var.isFinal()) {
code = LD_CODE;
addr = var.getCodeAddr();
} else if (kind == 'G') {
code = LD_GLOBAL;
} else if (kind == 'X') {
code = LD_XMODEL;
} else {
code = LD_LOCAL;
}
if (++_sp > _spMax) {
if (_sp >= STACK_SIZE) {
//Overflow of compiler internal stack
_parser.error(XDEF.XDEF204);
_sp--;
return false;
}
_spMax = _sp;
}
_tstack[_sp] = xType;
if (xType != X_UNIQUESET_NAMED && var.isConstant()) {
addCode(var.getValue().cloneItem());
_cstack[_sp] = _lastCodeIndex;
} else {
addCode(new CodeS1(xType, code, addr, var.getName()));
_cstack[_sp] = -1;
}
return true;
}
/** Add code for store value to local variable.
* @param name The name of local variable.
*/
final void genST(final String name) {
if (_sp >= 0) {
short xType = _tstack[_sp];
CompileVariable var = getVariable(name);
if (var == null) {
_parser.error(XDEF.XDEF424, name);//Undefined variable &{0}
var = addVariable(genErrId(), xType, (byte) 'L', null);
}
if (xType != var.getType()) {
switch (xType) {
case XD_DOUBLE:
if (var.getType() == XD_LONG) {
topToFloat();
break;
}
topToString();
break;
case XD_STRING:
topToString();
break;
case XD_LONG:
if (var.getType() == XD_DATETIME) {
topToMillis();
} else if (xType == XD_DECIMAL) {
addCode(new CodeI1(XD_DECIMAL, TO_DECIMAL_X, 0));
_cstack[_sp] = -1;
return;
} else if (var.getType() == XD_CHAR) {
topXToInt(0);
}
break;
case XD_ANY:
break;
case XD_UNDEF:
return;
case XD_PARSERESULT:
convertTopToType(var.getType());
break;
default:
if (var.getType() != XD_ANY) {
_parser.error(XDEF.XDEF457,//Incompatible types &{0}
getTypeName(var.getType()) + "," +
getTypeName(xType));
return;
}
}
}
genST(var);
}
}
/** Add code for store value to local variable.
* @param var CompileVariable object.
*/
final void genST(final CompileVariable var) {
var.setInitialized(true);
short code;
short xType = var.getType();
switch (var.getKind()) {
case 'G':
code = ST_GLOBAL;
break;
case 'X':
code = ST_XMODEL;
break;
default:
code = ST_LOCAL;
break;
}
addCode(new CodeS1(xType, code, var.getOffset(), var.getName()));
_sp--;
}
/** Push on top of the stack the "undefined" value.*/
final void setUnDefItem() {
_tstack[++_sp] = XD_UNDEF;
_cstack[_sp] = -1;
}
/** Add jump to the end of code.
* If argument is an unconditional jump return. If it is a conditional jump
* then:
* 1. while the last code item is a logical 'not' operator reverse
* jump true/false condition and remove the last 'not' code item.
* 2. if the last code item is a operator (CMPIEQ .. CMPDGT) then
* replace it with the jump item object from argument.
* If jump is JMPF operator reverse condition operator to logical
* complement (i.e. CMPIEQ change to CMPINE, CMPDGT to CMPDLE etc).
* Change code id of jump item from the argument to the last code item
* converted to corresponding condition jump (CMPIEQ to JMPEQ etc) and
* replace the last code item with it. Otherwise just add the jump item to
* the end of code.
* @param jump code object with a conditioned jump.
*/
final void addJump(final CodeI1 jump) {
if (jump != null) {
short jumpCode;
if ((jumpCode = jump.getCode()) == JMP_OP) {
addCode(jump, 0);
return;
}
XDValue lastItem;
short code;
while (_lastCodeIndex >= 0 &&
(getLastCodeItem()).getCode() == NOT_B) {
code = invertCode(jumpCode);
if (code < 0) {
break;
}
jump.setCode(jumpCode = code);
_code.remove(_lastCodeIndex);
_lastCodeIndex--;
}
if (_lastCodeIndex > 0) {
lastItem = getLastCodeItem();
XDValue codeItem;
if ((_sp < 0 || _cstack[_sp] != -2) &&
(code = lastItem.getCode()) >= CMPEQ && code <= CMPGT) {
codeItem = (CodeI1) lastItem;
if (jumpCode == JMPF_OP) {
code = invertCode(((CodeI1) codeItem)._code); // JMPT_OP
codeItem.setCode(code);
}
// convert cmpTxx -> jmpTxx
jump.setCode((short) (code + JMPEQ - CMPEQ));
//replace last code
_code.set(_lastCodeIndex, jump); //replace last code
_sp--;
return;
}
XDValue prevItem = getCodeItem(_lastCodeIndex - 1);
if ((prevItem.getCode()) == LD_TRUE_AND_SKIP) {
if (jumpCode == JMPF_OP) {
setCodeItem(_lastCodeIndex - 1, //jump after last item
new CodeI1(XD_VOID, JMP_OP, _lastCodeIndex + 1));
jump.setCode(JMP_OP);
_code.set(_lastCodeIndex, jump); //replace last code
} else {
jump.setCode(JMP_OP);
_code.remove(_lastCodeIndex--);
_code.set(_lastCodeIndex, jump); //replace last code
}
_sp--;
return;
}
}
addCode(jump, -1);
}
}
/** If jump vector is not empty generate boolean value from it.
* @param jv CompileJumpVector object.
*/
final void jumpVectorToBoolValue(final CompileJumpVector jv) {
if (!jv.isTrueJumpListEmpty()) {
addJump(jv.addJumpItemToFalseList(JMPF_OP));
genBoolJumpConvertor();
jv.resoveTrueJumps(_lastCodeIndex - 1);
jv.resoveFalseJumps(_lastCodeIndex);
} else if (!jv.isFalseJumpListEmpty()) {
addJump(jv.addJumpItemToFalseList(JMPF_OP));
genBoolJumpConvertor();
jv.resoveFalseJumps(_lastCodeIndex);
}
}
/** Generate sequence of two operations:
* LD_TRUE_AND_SKIP_CODE, LDC_FALSE_CODE.
*/
final void genBoolJumpConvertor() {
addCode(new CodeOp(XD_BOOLEAN, LD_TRUE_AND_SKIP));
addCode(new DefBoolean(false), 1);
_cstack[_sp] = -1;
}
/** Check if code is an compare operation or conditional jump.
* If yes, then the code is inverted to logical negation of given operation
* and the method returns inverted code. Otherwise the method returns -1.
* @param code inspected code.
* @return inverted code or -1.
*/
private short invertCode(final short code) {
switch (code) {
case CMPEQ: // CMPxEQ -> CMPxNE
case JMPEQ: // JMPxEQ -> JMPxNE
case CMPGE: // CMPxGE -> CMPxLT
case JMPGE: // JMPxGE -> JMPxLT
case JMPF_OP: // JMPF -> JMPT
return (short) (code + 1);
case CMPNE: // CMPxNE -> CMPxEQ
case JMPNE: // JMPxNE -> JMPxEQ
case CMPLT: // CMPxLT -> CMPxGE
case JMPLT: // JMPxLT -> JMPxGE
case JMPT_OP: // JMPT -> JMPF
return (short) (code - 1);
case CMPLE: // CMPxLE -> CMPxGT
case JMPLE: // JMPxLE -> JMPxGT
return (short) (code + 3);
case CMPGT: // CMPxGT -> CMPxLE
case JMPGT: // JMPxGT -> JMPxLE
return (short) (code - 3);
default:
return -1;
}
}
/** Generate default conversion of the item on the top of stack.
* @param resultType required type.
*/
final void convertTopToType(final short resultType) {
short xType;
if (_sp >= 0 && resultType != XD_UNDEF &&
resultType != (xType = _tstack[_sp])) {
if (xType == resultType) {
return;
}
if (xType == XD_UNDEF ||//do not report other error messages!
resultType == XD_ANY) {
_tstack[_sp] = resultType;
return;
}
int xValue = _cstack[_sp];
if (xType == XD_NULL && xValue >= 0) {
_code.set(xValue, DefNull.genNullValue(resultType));
_tstack[_sp] = resultType;
return;
}
if (xType == XD_ANY) {//conversion from AnyValue
//dynamic type check
addCode(new CodeI1(resultType, CHECK_TYPE, resultType));
_tstack[_sp] = resultType;
return;
}
switch (resultType) {
case XD_STRING:
topToString();
return;
case XD_DOUBLE:
if (xType == XD_LONG || xType == XD_DECIMAL) {
topToFloat();
return;
}
break;
case XD_LONG:
switch (xType) {
case XD_DATETIME:
topToMillis();
return;
case XD_DECIMAL:
addCode(new CodeI1(XD_DECIMAL, TO_DECIMAL_X, 0));
_cstack[_sp] = -1;
return;
case XD_CHAR:
topXToInt(0);
return;
}
break;
case XD_CHAR:
if (xType == XD_LONG || xType == XD_DOUBLE
|| xType == XD_DECIMAL) {
topXToChar(0);
return;
}
break;
case XD_DECIMAL:
if (xType == XD_DOUBLE || xType == XD_LONG) {
if (xValue >= 0) {
_code.set(xValue, new DefDecimal(
getCodeItem(xValue).decimalValue()));
} else {
addCode(new CodeI1(XD_DECIMAL, TO_DECIMAL_X, 0));
_cstack[_sp] = -1;
}
_tstack[_sp] = XD_DECIMAL;
return;
}
break;
case XD_BIGINTEGER:
if (xType == XD_LONG) {
if (xValue >= 0) {
_code.set(xValue, new DefBigInteger(
getCodeItem(xValue).integerValue()));
} else {
addCode(
new CodeI1(XD_BIGINTEGER, TO_BIGINTEGER_X, 0));
_cstack[_sp] = -1;
}
_tstack[_sp] = XD_BIGINTEGER;
return;
}
break;
case XD_BOOLEAN:
if (xType == X_ATTR_REF || xType == XD_PARSERESULT
|| xType == XD_PARSER) {
topToBool();
return;
}
break;
case XD_CONTAINER:
addCode(new CodeI1(XD_CONTAINER, NEW_CONTAINER, 1));
_cstack[_sp] = -1;
return;
case XD_DATETIME: {
break;
}
case XD_DURATION: {
break;
}
case XD_ELEMENT:
break;
case XD_PARSERESULT:
switch (xType) {
case XD_PARSER:
addCode(new CodeI1(XD_PARSERESULT,PARSE_OP,1),0);
return;
case XD_BOOLEAN:
return;
case XD_BNFRULE:
addCode(new CodeI1(XD_PARSERESULT,
BNFRULE_PARSE, 1), 0);
_tstack[_sp] = XD_PARSERESULT;
return;
default:
break;
}
break;
default:
}
_parser.error(XDEF.XDEF457, //Incompatible types&{0}{: }
getTypeName(xType) + "," + getTypeName(resultType));
_tstack[_sp] = XD_UNDEF;
}
}
final void topToBool() {
short xType;
if (_sp >= 0 && XD_BOOLEAN != (xType = _tstack[_sp]) &&
XD_UNDEF != xType) {
int codesize;
CodeS1 cs;
Object o;
if (xType == X_ATTR_REF &&
(codesize = _code.size() - 1) >= 0 &&
(o = getCodeItem(codesize)) instanceof CodeS1 &&
(cs = (CodeS1) o)._code == ATTR_REF) {
//attribute
cs._code = ATTR_EXIST;
_cstack[_sp] = -1;
_tstack[_sp] = XD_BOOLEAN;
} else if (xType == XD_PARSERESULT) {
addCode(new CodeI1(XD_BOOLEAN, PARSERESULT_MATCH, 1));
_tstack[_sp] = XD_BOOLEAN;
_cstack[_sp] = -1;
} else if (xType == XD_PARSER) {
addCode(new CodeI1(XD_BOOLEAN, PARSEANDCHECK, 1));
_tstack[_sp] = XD_BOOLEAN;
_cstack[_sp] = -1;
} else if (xType == XD_CONTAINER) {
addCode(new CodeI1(XD_BOOLEAN, TO_BOOLEAN, 1));
_tstack[_sp] = XD_BOOLEAN;
_cstack[_sp] = -1;
} else {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423,"boolean");
}
}
}
/** Conversion of the stack item at top position to float. */
final void topToFloat() {topXToFloat(0);}
/** Conversion of stack item under top to float. */
final void topXToFloat() {topXToFloat(1);}
/** Conversion of stack item under top to int. */
final void topXToInt(final int index) {
short xType;
int sp = _sp - index;
if (sp >= 0 && (xType = _tstack[sp]) != XD_LONG && xType != XD_UNDEF) {
if (xType == XD_CHAR || xType == XD_DOUBLE || xType == XD_DECIMAL) {
if (_cstack[sp] >= 0) { //constant
_code.set(_cstack[sp], new DefLong(
getCodeItem(_cstack[sp]).intValue()));
} else {
//value
addCode(new CodeI1(XD_LONG, TO_INT_X, index));
_cstack[sp] = -1;
}
} else {
//Value of type 'int' or 'float' expected
_parser.error(XDEF.XDEF439);
_cstack[sp] = -1;
}
_tstack[sp] = XD_LONG;
}
}
/** Conversion of stack item under top to int. */
final void topXToChar(final int index) {
short xType;
int sp = _sp - index;
if (sp >= 0 && (xType = _tstack[sp]) != XD_CHAR && xType != XD_UNDEF) {
if (xType == XD_LONG || xType == XD_DOUBLE || xType == XD_DECIMAL){
if (_cstack[sp] >= 0) { //constant
_code.set(_cstack[sp],
new DefChar(getCodeItem(_cstack[sp]).intValue()));
} else {
//value
addCode(new CodeI1(XD_LONG, TO_CHAR_X, index));
_cstack[sp] = -1;
}
} else {
//Value of type 'int' or 'float' expected
_parser.error(XDEF.XDEF439);
_cstack[sp] = -1;
}
_tstack[sp] = XD_CHAR;
}
}
/** Conversion of the stack item at top position to null or string. */
final void topToNullOrString() {
short xType;
if (_sp >= 0 && (xType=_tstack[_sp])!=XD_STRING && xType!=XD_UNDEF){
int xValue;
if ((xValue = _cstack[_sp]) >= 0) {//constant
if (xType == X_ATTR_REF) {
_code.set(xValue,
new CodeS1(XD_STRING, ATTR_REF,
getCodeItem(xValue).stringValue()));
_cstack[_sp] = -1;
} else {
//constant
_code.set(xValue,
new DefString(getCodeItem(xValue).stringValue()));
}
} else {//value
addCode(new CodeI1(XD_STRING, NULL_OR_TO_STRING));
_cstack[_sp] = -1;
}
_tstack[_sp] = XD_STRING;
}
}
/** Conversion of the stack item at top position to string. */
final void topToString() {topXToString(0);}
/** Conversion of the given stack item to float.
* @param index relative stack position from top.
*/
private void topXToFloat(final int index) {
short xType;
int sp = _sp - index;
if (sp >= 0 && (xType=_tstack[sp])!=XD_DOUBLE && xType!=XD_UNDEF){
switch (xType) {
case XD_LONG:
if (_cstack[sp] >= 0) { //constant
_code.set(_cstack[sp], new DefDouble(
getCodeItem(_cstack[sp]).longValue()));
} else {
//value
addCode(new CodeI1(XD_DOUBLE, TO_FLOAT_X, index));
_cstack[sp] = -1;
} break;
case XD_DECIMAL:
if (_cstack[sp] >= 0) { //constant
_code.set(_cstack[sp], new DefDouble(
getCodeItem(_cstack[sp]).floatValue()));
} else {
//value
addCode(new CodeI1(XD_DECIMAL, TO_DECIMAL_X, index));
_cstack[sp] = -1;
} break;
default:
//Value of type 'int' or 'float' expected
_parser.error(XDEF.XDEF439);
_cstack[sp] = -1;
break;
}
_tstack[sp] = XD_DOUBLE;
}
}
/** Conversion of the given stack item to string.
* @param index relative stack position from top.
*/
private void topXToString(final int index) {
short xType;
int sp = _sp - index;
if (sp >= 0 && (xType=_tstack[sp])!=XD_STRING && xType!=XD_UNDEF){
int xValue;
if ((xValue = _cstack[sp]) >= 0) {//constant
if (xType == X_ATTR_REF) {
_code.set(xValue,
new CodeS1(XD_STRING, ATTR_REF,
getCodeItem(xValue).stringValue()));
_cstack[sp] = -1;
} else {
//constant
_code.set(xValue,
new DefString(getCodeItem(xValue).stringValue()));
}
} else {//value
addCode(new CodeI1(XD_STRING, TO_STRING));
_cstack[sp] = -1;
}
_tstack[sp] = XD_STRING;
}
}
/** Conversion of the stack item at top position to float. */
final void topToMillis() {
short xType;
if (_sp >= 0 && (xType=_tstack[_sp]) != XD_LONG &&
xType != XD_ANY && xType != XD_UNDEF) {
if (xType == XD_DATETIME) {
if (_cstack[_sp] >= 0) { //constant
_code.set(_cstack[_sp], new DefLong(
getCodeItem(_cstack[_sp]).datetimeValue().
getTimeInMillis()));
} else { //value
addCode(new CodeI1(XD_LONG, TO_MILLIS));
_cstack[_sp] = -1;
}
} else {
//Value of type 'Datetime' or 'int' expected
_parser.error(XDEF.XDEF441);
_tstack[_sp] = XD_LONG;
_cstack[_sp] = -1;
}
_tstack[_sp] = XD_LONG;
}
}
/** Conversion of the part stack to Container.
* @param index relative stack position from top.
*/
private void toContainer(final int n) {
for (int i = 0; i < n; i++) {
if (_cstack[_sp - i] < 0) { // not all constants
addCode(new CodeI1(XD_CONTAINER, STACK_TO_CONTAINER, n), -n + 1);
return;
}
}
XDContainer c = new DefContainer();
for (int i = n - 1; i >= 0; i--) {
c.addXDItem(_code.get(_lastCodeIndex));
_code.remove(_lastCodeIndex--);
}
_code.add(c);
_sp = _sp - n + 1;
_cstack[_sp] = ++_lastCodeIndex;
_tstack[_sp] = XD_CONTAINER;
}
/** Generate conversion of two top stack items to float. */
final void operandsToFloat() {
topXToFloat(1);
topToFloat();
}
/** Conversion of two top stack items to string. */
final void operandsToString() {
topXToString(1);
topToString();
}
/** Remove code from codeIndex to end and clear associated stack.
* @param codeIndex The point from which code is removed.
* @param sp The saved stack pointer.
* @param spMax The saved max. stack pointer.
*/
final void removeCodeFromIndexAndClearStack(final int codeIndex,
final int sp,
final int spMax) {
for (int i = _lastCodeIndex; i > codeIndex; i--) {
_code.remove(i);
}
_sp = sp;
_spMax = spMax;
_lastCodeIndex = codeIndex;
for (int i = 0; i <= _sp; i++) {
if (_cstack[i] > codeIndex) {
_cstack[i] = -1;
}
}
}
/** Generate pop stack item (throw it away). */
final void genPop() {
if (_sp >= 0) {
addCode(new CodeI1(XD_VOID, POP_OP), -1);
}
}
/** Generate duplicate stack item. */
final void genDup() {
if (_sp >= 0) {
short xType = _tstack[_sp];
if(xType == XD_LONG || xType == XD_BOOLEAN ||
xType == XD_DOUBLE || xType == XD_STRING) {
addCode(new CodeI1(xType, STACK_DUP), 1);
} else {
//Internal error: &{0}
_parser.error(SYS.SYS066, "Stack copy on type " + xType);
}
}
}
final boolean scriptMethod(final String name, final int numPar) {
ScriptMethod lm = null;
for (String s: _parser._importLocals) {
lm = _scriptMethods.get(s + name);
if (lm != null) {
break;
}
}
if (lm == null) {
lm = _scriptMethods.get(name);
if (lm == null) {
return false;
}
}
short[] pars = lm.getParams();
if (numPar != pars.length) {
long errcode = numPar < pars.length
? XDEF.XDEF460 //More parameters required for method &{0}
: XDEF.XDEF461;//Too many parameters for method &{0}
_parser.error(errcode, name);
} else {
for (int i = numPar - 1, j = _sp; i >= 0; i--) {
if (j < 0 || pars[i] != _tstack[j--]) {
if (pars[i]!=XD_ANY && _tstack[j+1]!=XD_ANY &&
pars[i]!=XD_UNDEF &&_tstack[j+1]!=XD_UNDEF){
_parser.error(XDEF.XDEF467); //Incorrect parameter type
}
break;
}
}
}
CodeI1 operator = new CodeI1(lm.getResultType(), CALL_OP, lm.getAddr());
int np = numPar;
if (lm.getResultType() != XD_VOID) {
np--;
}
addCode(operator, -np);
if (lm.getAddr() == -1) {
lm.addPostDef(_lastCodeIndex);
}
return true;
}
final boolean externalMethod(final String name,
final String extName,
final int numPar) {
if (_ignoreExternalMethods){
return false;
}
// try to find this method in XExtUtils class
CodeExtMethod method = findExternalMethod(name,
numPar, XExtUtils.class, null);
if (method == null) {
// not found, try to find it in the java.lang.Math class
method = findExternalMethod(name, numPar, Math.class, null);
if (method == null) { // not found, look to external methods list
method = _extMethods.get(extName);
if (method == null) {
method = findExternalMethod(name, numPar, null, null);
if (method == null && _extClasses != null) {
// not found, try to find it in extternal classes
for (Class extClass : _extClasses) {
method =
findExternalMethod(name, numPar, extClass,null);
if (method != null) {
_extMethods.put(extName, method);
break;
}
}
}
if (method == null) {
return false; // method was not found
}
}
}
}
int np = numPar;
if (method._resultType != XD_VOID) {
np--;
}
addCode(method, -np);
return true;
}
/** Generate method call.
* @param name The name of method.
* @param numPar Number of parameters (types of parameters are in stack).
* @return name of the unknown method or null.
*/
final String genMethod(final String name, final int numPar) {
String extName = name + typeList(numPar);
if (extName.indexOf('?') >= 0) {
//don't process searching of method with undefined parameter
_sp -= numPar -1;
_tstack[_sp] = XD_UNDEF;
_cstack[_sp] = -1;
return null;
}
CompileVariable var = getVariable(name);
if (var != null) {
int addr;
if (var.getType() == X_PARSEITEM && numPar == 0
&& var.getCodeAddr() == -1
&& (addr = var.getParseMethodAddr()) >= 0
&& _code.get(addr).getItemId() == XD_PARSER) {
if (var.getKind()=='G' && _code.get(addr).getCode()==LD_CONST
&& addr + 2 <= _lastCodeIndex
&& _code.get(addr+1).getCode() == PARSE_OP
&& _code.get(addr+2).getCode() == STOP_OP) {
_cstack[++_sp] = addr;
addCode(new CodeS1(XD_PARSER, LD_CODE, addr, name));
addCode(new CodeI1(XD_PARSERESULT, PARSE_OP, 1), 0);
} else {
addCode(new CodeI1(XD_PARSERESULT, CALL_OP, addr), 1);
}
return null; //OK
} else if (var.getType() == X_UNIQUESET && var.getCodeAddr() == -1
|| var.getType() == X_PARSEITEM && numPar == 0) {
//check type ID (unique type, unique value)
addCode(new CodeI1(XD_BOOLEAN,
CALL_OP, var.getParseMethodAddr()), 1);
// return null if it is OK, otherwise return method name
return numPar != 0 ? name : null;
}
}
if (scriptMethod(extName, numPar)
|| numPar > 0 && _tstack[_sp] == XD_CONTAINER
&& scriptMethod(name + typeList(numPar), numPar)
|| externalMethod(name, extName, numPar)
|| internalMethod(name, numPar)) {
return null;
}
String s = null;
if (!_ignoreUnresolvedExternals) {
//create string with the method name and the list of parameter types
s = name + "(";
for (int i = _sp - numPar + 1, j = i; i <= _sp; i++) {
if (i > j) {
s += ',';
}
short type = _tstack[i];
s += type == X_ATTR_REF
? "String" : getTypeName(type);
}
s += ')';
}
//generate dummy code.
CodeExtMethod method = crtUndefMethod(name, numPar);
_extMethods.put(name+extName, method);
int np = numPar;
if (method._resultType != XD_VOID) {
np--;
}
addCode(method, -np);
return s; // null if it is OK, othrwise it is error message
}
/** Put report XDEF998 "{0}" is deprecated. Please use "&{1}" instead.
* @param old old text.
* @param replace text to be deprecated/
*/
final void reportDeprecated(final String old, final String replace) {
if (_chkWarnings) {
_parser.warning(XDEF.XDEF998, '"' + old + '"', '"' + replace + '"');
}
}
/** Generation of internal method code.
* @param name The name of method.
* @param numPar Number of parameters (types of parameters are in stack).
*/
final boolean internalMethod(final String name, final int numPar) {
CompileBase.InternalMethod imethod = getTypeMethod(X_NOTYPE_VALUE, name);
if (imethod == null) {
return false;
}
if (imethod.isDeprecated()) {
reportDeprecated(name, imethod.getRecommendedName());
}
genInternalMethod(name, numPar, imethod);
return true;
}
final boolean genConstructor(final short type, final int numPar) {
if (type == XD_UNDEF) {
if (_sp >= 0) {
_cstack[_sp] = -1;
}
return true; //do not report multiple errors!
}
CompileBase.InternalMethod imethod = getTypeMethod(type, "#");
if (imethod == null) {
return false;
}
if (imethod.isDeprecated()) {
reportDeprecated(getTypeName(type), imethod.getRecommendedName());
}
genInternalMethod(getTypeName(type), numPar, imethod);
return true;
}
final boolean genClassMethod(final String name, final int numPar) {
if (_sp - numPar < 0) {
return false;
}
short xType = _tstack[_sp - numPar];
if (xType == XD_VOID || xType == XD_UNDEF) {
if (xType == XD_VOID) {
_parser.error(XDEF.XDEF438); //Value expected
}
return true;
} else if (xType < 0 || xType >= X_NOTYPE_VALUE) {
return false;
} else if ("equals".equals(name) && numPar == 1) {
addCode(new CodeI1(XD_BOOLEAN, EQUALS_OP, 1), -1);
_cstack[_sp] = -1;
topToBool();
return true;
} else if ("toString".equals(name) && numPar == 0) {
topToString();
return true;
} else if ("exists".equals(name) && xType == X_ATTR_REF && numPar == 0){
topToBool();
return true;
}
CompileBase.InternalMethod imethod = getTypeMethod(xType, name);
if (imethod == null && xType == XD_PARSER) {
addCode(new CodeI1(XD_PARSERESULT, PARSE_OP, 1), 0);
xType = _tstack[_sp - numPar];
imethod = getTypeMethod(xType, name);
}
if (imethod != null) {
if (imethod.isDeprecated()) {
reportDeprecated(name, imethod.getRecommendedName());
}
genInternalMethod(name, numPar + 1, imethod);
return true;
}
return false;
}
/** This method is called only for GET_XPATH and GET_XPATH_FROM_SOURCE!
* @param npar number of parameters.
* @param code code to be optimized.
* @return true if code was optimized.
*/
private boolean optimizeXPath(final int npar, final short code) {
int sp = code == GET_XPATH ? _sp-npar+1 : _sp;
int constPar = _cstack[sp];
if (constPar < 0) {
return false; // xpath expression is not string constant
}
String s = getCodeItem(constPar).toString();
if (s == null || (s = s.trim()).isEmpty()) {
//XPath error&{0}{: }
_parser.error(XML.XML505, "empty argument");
return false;
}
int ix = s.charAt(0) == '@' ? 1 : s.startsWith("self::") ? 6 : 0;
String name = s.substring(ix);
ix = StringParser.chkXMLName(name, (byte) 10)
? !name.contains("::") ? ix : -1 : -1;
if (ix < 0) {
return false;
}
if (npar == 2) {
if (code == GET_XPATH) {
if (constPar + 1 != _lastCodeIndex) {
return false;
}
XDValue v = _code.get(_lastCodeIndex); //element value
//relace code with string constant
_code.set(constPar++, v);
_tstack[_sp - 1] = _tstack[_sp]; //should be element
_cstack[_sp - 1] = _cstack[_sp];
}
sp = --_sp;
}
int ndx = name.indexOf(':');
if (ndx > 0) { // has prefix -> namespaceURI
String prefix = name.substring(0, ndx);
String uri = getXDNamespaceContext().getNamespaceURI(prefix);
name = '{' + uri + '}' + name.substring(ndx+1);
} else if (ix != 1) { // not attribute -> may have defalut namespace
String uri = getXDNamespaceContext().getNamespaceURI("");
if (uri != null) {
name = '{' + uri + '}' + name;
}
}
switch (ix) {
case 1:
//@name->String
_code.set(constPar,
new CodeS1(XD_CONTAINER, GETATTR_FROM_CONTEXT, npar,name));
_tstack[sp] = XD_CONTAINER;
break;
case 6:
// self::name -> element
_code.set(constPar,
new CodeS1(XD_CONTAINER, GETELEM_FROM_CONTEXT, npar,name));
_tstack[sp] = XD_CONTAINER;
break;
default:
// name -> Container
_code.set(constPar,
new CodeS1(XD_CONTAINER, GETELEMS_FROM_CONTEXT,npar,name));
_tstack[sp] = XD_CONTAINER;
break;
}
_cstack[sp] = -1;
return true;
}
/** Set sequential parameter as named parameter.
* @param d Container with parameters.
* @param val value of parameter.
* @param name name of named parameter.
*/
private void setSeqParam(final XDContainer d,
final XDValue val,
final String name) {
if (d.hasXDNamedItem(name)) {
//Conflict of sequential parameter and named parameter: &{0}
_parser.error(XDEF.XDEF442, name);
}
if (!val.isNull()) { // ignore it if it is null
d.setXDNamedItem(name, val);
}
}
/** Generation of internal method code.
* @param name The name of method.
* @param numPar Number of parameters (types of parameters are in stack).
* @param imethod The internal method descriptor.
*/
private void genInternalMethod(final String name,
final int numPar,
final CompileBase.InternalMethod imethod) {
short code = imethod.getCode();
int npar = numPar; //is modified, should be local
//first parameter type
short par1typ = npar > 0 ? _tstack[_sp - (npar - 1)] : -1;
//first parameter value constant pointer or -1
int par1const = npar > 0 ? _cstack[_sp - (npar - 1)] : -1;
CompileBase.InternalMethod method = imethod;
short resultType = method.getResultType();
XDValue operator = null;
switch (code) {
case FROM_ELEMENT://deprecated
reportDeprecated("fromElement", "from");
break;
case LD_CONST: {
if (resultType != XD_PARSER) {
//Internal error: &{0}
_parser.error(XDEF.XDEF202,"const type: "+resultType);
break; // this should never happen!
}
// parsers
if (npar == 0) { // no parameters
if ("string".equals(name) || "CDATA".equals(name)) {
genLDC(getParser("CDATA"));
} else {
if (imethod.getMinParams() > 0) {
//More parameters required for method &{0}
_parser.error(XDEF.XDEF460, name);
}
genLDC(getParser(name));
}
return;
} else if ("list".equals(name) && //deprecated!
par1typ != XD_CONTAINER && par1typ != XD_PARSER) {
reportDeprecated("list", "enum");
genInternalMethod("enum",
npar, getTypeMethod(X_NOTYPE_VALUE, "enum"));
return;
}
XDParser p = getParser("CDATA".equals(name) ? "string" : name);
CompileBase.KeyParam[] pars = method.getKeyParams();
String[] sqParamNames = method.getSqParamNames();
if (npar == 1 && _tstack[_sp] == XD_CONTAINER &&
_cstack[_sp] == _lastCodeIndex) {// set named parameters
DefContainer h = (DefContainer) getLastCodeItem();
int len = h.getXDNamedItemsNumber();
// check named parameters
for (int i = len - 1; i >= 0; i--) {
String s = h.getXDNamedItemName(i);
boolean found = false;
for (CompileBase.KeyParam par : pars) {
if (par.getName().equals(s)) {
XDValue[] legal = par.getLegalValues();
if (legal != null && legal.length > 0) {
XDValue v = h.getXDNamedItemValue(s);
boolean found1 = false;
for (int k = 0; k < legal.length; k++) {
if (legal[k].equals(v)) {
if (k == 0) {// default
h.removeXDNamedItem(s);
len--;
}
found1 = true;
}
}
if (!found1) {
//Incorrect value of '&{0}'&{1}{: }
_parser.error(XDEF.XDEF809, s);
}
}
found = true;
break;
}
}
if (!found) {
//Illegal parameter name '&{0}'
_parser.error(XDEF.XDEF801, s);
}
}
for (CompileBase.KeyParam par: pars) {
String parName = par.getName();
XDNamedValue val = h.getXDNamedItem(parName);
boolean err = false;
XDValue v = val != null ? val.getValue() : null;
if (v != null && "base".equals(parName)) {
if (v.getItemId() == XD_BOOLEAN) {
val.setValue(v.booleanValue()
? new XDParseTrue() : new XDParseFalse());
} else if (v.getItemId() != XD_PARSER) {
err = true;
}
} else if (v != null && "item".equals(parName)) {
if (v.getItemId() == XD_CONTAINER) {
for (XDValue x:((XDContainer)v).getXDItems()){
if (x.getItemId() != XD_PARSER) {
err = true;
break;
}
}
} else if (v.getItemId() != XD_PARSER) {
err = true;
}
}
if (err) {
//The value type in the named parameter '&{0}'
// of the parser&{1}{ '}{'} must be Parser
_parser.error(XDEF.XDEF474, "%item",p.parserName());
}
if (par.isFixed()) {
if (val == null) {
h.setXDNamedItem(parName,par.getDefaultValue());
len++;
} else if (!val.equals(par)) {
//Incorrect value of '&{0}'&{1}{: }
_parser.error(XDEF.XDEF809, parName,
"\"" + val + '"');
}
} else if (par.isRequired() && val == null) {
//Missing required parameter: &{0}
_parser.error(XDEF.XDEF545, parName);
}
}
if (len > 0) {
try {
p.setNamedParams(null, h);
} catch (Exception ex) {
if (ex instanceof SThrowable) {
_parser.putReport(((SThrowable)ex).getReport());
} else if (ex instanceof ClassCastException) {
//Incorrect parameter type
_parser.error(XDEF.XDEF467);
} else {
_parser.putReport( //Internal error&{0}{: }
Report.error(SYS.SYS066, ex, ex));
}
}
} else if ("datetime".equals(name)
|| "xdatetime".equals(name)) {
//More parameters required for method &{0}
_parser.error(XDEF.XDEF460, "xdatetime");
}
_code.set(_lastCodeIndex, p);
_tstack[_sp] = resultType;
} else {
if (_tstack[_sp] == XD_CONTAINER) {
if (npar-1 > sqParamNames.length) {
//Too many parameters for method &{0}
_parser.error(XDEF.XDEF461, name);
}
} else if (npar > method.getMaxParams()) {
//Too many parameters for method &{0}
_parser.error(XDEF.XDEF461, name);
}
boolean allconst = true;
for (int i = 0; i < npar; i++) {
if (_cstack[_sp-i] != _lastCodeIndex - i) {
allconst = false; // not constant
break;
}
}
if (_tstack[_sp] != XD_CONTAINER) {
if ("string".equals(name)) {
p = new XDParseCDATA();
}
if (npar > sqParamNames.length
&& sqParamNames.length == 1) {
toContainer(npar);
npar = 1;
if (allconst) {
XDValue val = removeLastCodeItem();
_sp--;
XDContainer d = new DefContainer();
d.setXDNamedItem(sqParamNames[0], val);
try {
p.setNamedParams(null, d);
genLDC(p);
return;
} catch (Exception ex) {} //never happens
} else {
addCode(new CodeS1(XD_NAMEDVALUE,
CREATE_NAMEDVALUE, sqParamNames[0]),0);
addCode(new CodeParser(resultType, NEW_PARSER,
npar, p.parserName(), sqParamNames),
-npar + 1);
}
return;
}
}
if (allconst) {
XDValue val = removeLastCodeItem();
_sp--;
XDContainer d;
if (val.getItemId() == XD_CONTAINER) {
d = (XDContainer) val;
if (--npar >= 1) {
val = removeLastCodeItem();
_sp--;
}
} else {
d = new DefContainer(); //empty map
}
if (npar > 0 && npar <= 2 && sqParamNames!=null
&& sqParamNames.length == 2){
String s1 = sqParamNames[0]; //1. parameter name
String s2 = sqParamNames.length > 1
? sqParamNames[1] : s1; //2. parameter name
if (npar-- == 1) {// only one sequential parameter
if (sqParamNames.length > 1
&& s1.startsWith("min")
&& s2.startsWith("max")) {
setSeqParam(d, val, s1);
setSeqParam(d, val, s2);
} else {
setSeqParam(d, val, s1);
}
} else {// two sequential parameters
setSeqParam(d, val, s2);
npar--;
val = removeLastCodeItem(); // first parameter
_sp--;
setSeqParam(d, val, s1);
}
} else {
if (sqParamNames==null
|| npar > sqParamNames.length) {
//Too many of sequential parameters
_parser.error(XDEF.XDEF465);
} else {
while (--npar > 0) {
setSeqParam(d, val, sqParamNames[npar]);
val = removeLastCodeItem();
_sp--;
}
setSeqParam(d, val, sqParamNames[0]);
}
}
try {
if (!d.isEmpty()) {
XDValue minlen =
d.getXDNamedItemValue("minLength");
XDValue maxlen =
d.getXDNamedItemValue("maxLength");
if (minlen != null && maxlen != null
&& minlen.equals(maxlen)) {
if (d.hasXDNamedItem("length")) {
//Conflict of sequential parameter
//and named parameter: &{0}
_parser.error(XDEF.XDEF442, "length");
}
d.removeXDNamedItem("minLength");
d.removeXDNamedItem("maxLength");
d.setXDNamedItem("length", minlen);
}
p.setNamedParams(null, d);
}
} catch (Exception ex) {
if (ex instanceof SThrowable) {
_parser.putReport(((SThrowable)ex).getReport());
} else {
//Incorrect parameter value
_parser.error(XDEF.XDEF471);
}
}
genLDC(p);
} else {
addCode(new CodeParser(resultType,
NEW_PARSER, npar, p.parserName(), sqParamNames),
-npar + 1);
}
}
return;
}
case UNIQUESET_BIND:
if (_mode != imethod.getRestrictions() || !_allowBindSet) {
//Method '&{0}' not allowed here
_parser.error(XDEF.XDEF472, name);
code = UNDEF_CODE;
}
_allowBindSet = false;
break;
case GET_DBQUERY: {
if (npar < 1) {
break;
}
if (par1typ == XD_SERVICE) {
if (npar == 1) {
//The argument with query statement is missing
_parser.error(XDEF.XDEF111);
}
} else if (par1typ != XD_STATEMENT) {
//The first argument of the method 'dbquery' must be either
// DBconnection or XIterator
_parser.error(XDEF.XDEF110);
break;
}
// check modification parameters
for (int i = _sp - npar + 2; i <= _sp; i++) {
if (_tstack[i] != XD_STRING) {
//The argument &{0} must be of &{1} type
_parser.error(XDEF.XDEF112, i-(_sp-npar)-1, "String");
}
}
break;
}
case SET_ATTR:
case GET_ATTR:
case HAS_ATTR:
case DEL_ATTR:
case CREATE_ELEMENTS:
case CREATE_ELEMENT: {
int xpar = code == CREATE_ELEMENTS
? 2 : code == CREATE_ELEMENT ? 1 : code == SET_ATTR ? 3 : 2;
if (npar == xpar && _cstack[_sp] >= 0 &&
_tstack[_sp] == XD_STRING) {
String qname = getCodeItem(_cstack[_sp]).toString();
int i;
String prefix = (i = qname.indexOf(':')) >= 0
? qname.substring(0, i) : "";
Integer p = _nsPrefixes.get(prefix);
if (p == null) {
if (prefix.length() > 0) {
//Namespace for prefix '&{0}' isn't defined
_parser.error(XDEF.XDEF257, prefix);
}
} else {
npar++;
genLDC(new DefString(_namespaceURIs.get(p)));
}
}
break;
}
case GET_XPATH:
if (npar == 2) {
short typ2 = _tstack[_sp];
if (typ2 != XD_CONTAINER && typ2 != XD_ELEMENT) {
//Parameter type must be XML Node
_parser.error(XDEF.XDEF113);
}
if (par1typ != XD_STRING) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "String");
} else if (par1const >= 0) {
if (optimizeXPath(npar, code)) {
return;
}
try {
DefXPathExpr xp = new DefXPathExpr(
getCodeItem(par1const).toString(),
getXDNamespaceContext(), null, null);
xp.setCode(LD_CONST);
_code.set(par1const, xp);
_cstack[_sp-1] = -1;
} catch (SRuntimeException ex) {
_parser.putReport(ex.getReport());
}
}
break;
}
case GET_XPATH_FROM_SOURCE:
if (npar == 1 || npar == 2) {
if (_tstack[_sp] != XD_STRING) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "String");
} else if (optimizeXPath(npar, code)) {
return;
}
if (npar == 2) {
if (par1typ != XD_ELEMENT) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "Element");
}
if (_cstack[_sp] == _lastCodeIndex) {
// COMPILE_XPATH -> vynechat
String s = getCodeItem(_lastCodeIndex).toString();
DefXPathExpr xp = new DefXPathExpr(s,
getXDNamespaceContext(), null, null);
if (s.indexOf(':') < 0) {
xp.setCode(LD_CONST);
}
_code.set(_lastCodeIndex, xp);
_tstack[_sp] = XD_XPATH;
_cstack[_sp] = -1;
}
operator = new CodeI1(resultType, code, npar);
addCode(operator, -1); //npar-1
return;
}
}
break;
case GET_XQUERY:
if (npar == 1 || npar == 2) {
int cnstLast = _cstack[_sp];
if (_tstack[_sp] != XD_STRING) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "String");
} else if (cnstLast >= 0) {
try {
_code.set(cnstLast, new DefXQueryExpr(
getCodeItem(cnstLast).toString()));
} catch (SRuntimeException ex) {
_parser.putReport(ex.getReport());
}
}
if (npar == 2) {
if (par1typ != XD_ELEMENT) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "Element");
}
operator = new CodeI1(resultType, code, npar);
npar--;
addCode(operator, -npar);
return;
}
}
break;
case GET_NS:
if (npar == 2) {
if (par1typ != XD_ELEMENT) {
_parser.error(XDEF.XDEF467); //Incorrect parameter type
}
topToString();
} else if (npar == 1) {
if (par1typ != XD_ELEMENT) {
topToString();
}
}
break;
case SET_ELEMENT:
if (npar == 1) {
if (par1typ != XD_CONTAINER && par1typ != XD_ELEMENT) {
//Parameter type must be 'Container' or 'Element'
_parser.error(XDEF.XDEF468);
break;
}
}
break;
case GET_ELEMENT:
if (npar > 0) {//getElement(list, index)
method = getTypeMethod(X_NOTYPE_VALUE, "#getElement");
code = method.getCode();
resultType = method.getResultType();
}
break;
case CONTEXT_GETTEXT:
if (npar == 0) {//getText()
method = getTypeMethod(X_NOTYPE_VALUE, "#getValue");
code = method.getCode();
resultType = method.getResultType();
}
break;
case TO_STRING: //NOTE this case item continues (without break)
if (npar == 2) {
topToString();
switch (_tstack[_sp - 1]) {
case XD_LONG:
code = INTEGER_FORMAT;
method.getParamTypes()[0] = INTEGER_FORMAT;
break;
case XD_DOUBLE:
code = FLOAT_FORMAT;
break;
case XD_DATETIME:
code = DATE_FORMAT;
if(_cstack[_sp] >= 0) {
Report r = StringParser.checkDateFormat(
getCodeItem(_cstack[_sp]).toString());
if (r != null) {
_parser.error(r.getMsgID(),
r.getText(), r.getModification());
}
}
break;
case XD_ANY:
break;
default:
//Format mask supported only for numbers or dates
_parser.error(XDEF.XDEF469);
}
method = genInternalMethod(code, XD_STRING,
method.getRestrictions(),
2, 2, //min. number and max. number of parameters
_tstack[_sp - 1], // first parameter type
XD_STRING); // second parameter type
break;
}
if (npar != 1) {
if (npar == 0) {
_parser.error(XDEF.XDEF459); //Parameter is missing
return;
}
}
topToString();
return;
case TO_FLOAT:
case TO_MILLIS:
if (npar != 1) {
if (npar == 0) {
_parser.error(XDEF.XDEF459); //Parameter is missing
return;
}
}
if (code == TO_FLOAT) {
topToFloat();
} else {
topToMillis();
}
return;
case OUTLN_STREAM:
case OUT_STREAM:
if (npar == 1) {
topToString();
}
break;
case OUTLN1_STREAM:
case OUT1_STREAM:
if (npar == 2) {
topToString();
}
break;
case PRINTF_STREAM: {
int maskPar;
if (_tstack[_sp - npar + 1] == XD_OUTPUT) {
if (npar == 2) {
//More parameters required for method &{0}
_parser.error(XDEF.XDEF460, "printf");
return;
}
maskPar = _sp - npar + 2;
} else {
maskPar = _sp - npar + 1;
}
if (_tstack[maskPar] == XD_LOCALE) {
maskPar++;
}
if (_tstack[maskPar] != XD_STRING) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423,"String");
return;
}
break;
}
case FORMAT_STRING: {
int maskPar = _sp - npar + 1;
if (_tstack[_sp - npar + 1] == XD_LOCALE) {
maskPar++;
}
if (_tstack[maskPar] != XD_STRING) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "String");
return;
}
break;
}
case PUT_ERROR:
if (npar > 0) {
if (_tstack[_sp + 1 - npar] == XD_OUTPUT) { //first param
if (npar < 2) {
//More parameters required for method &{0}
_parser.error(XDEF.XDEF460, name);
return;
} else if (npar > 4) {
//Too many parameters for method &{0}
_parser.error(XDEF.XDEF461, name);
return;
}
method = getTypeMethod(XD_OUTPUT, "error");
code = PUT_ERROR1;
} else {
if (npar > 1 && _tstack[_sp] == XD_REPORT) {
//Too many parameters for method &{0}
_parser.error(XDEF.XDEF461, name);
return;
}
if (npar > 3) {
//Too many parameters for method &{0}
_parser.error(XDEF.XDEF461, name);
return;
}
}
}
break;
case COMPILE_REGEX:
if (npar == 1) {
if (_tstack[_sp] != XD_STRING) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "String");
return;
}
if (par1const >= 0) {//constant
try {
replaceTop(new DefRegex(
getCodeItem(par1const).toString()));
} catch (Exception ex) {
if (ex instanceof SThrowable) {
_parser.putReport(((SThrowable)ex).getReport());
} else {
//Incorrect regular expression
_parser.error(XDEF.XDEF650, ex);
}
}
return;
}
}
break;
case PARSE_FLOAT:
case PARSE_INT:
case PARSE_DATE:
if (numPar != 2) {
topToString();
break;
}
operandsToString();
int par2const = _cstack[_sp];
if (par2const >= 0) {//format mask
Report r = StringParser.checkDateFormat(
_code.get(par2const).toString());
if (r != null) {// incorrect mask
_parser.error(r.getMsgID(),
r.getText(), r.getModification());
return;
}
}
if(par1const >= 0 && par2const >= 0) { //both are literals
StringParser p = new StringParser(
_code.get(par1const).toString()); //mask
if (!p.isDatetime(_code.get(par2const).toString())) {
_parser.error("XDEF499","Incorrect value of date/time");
return;
}
replaceTwo(new DefDate(p.getParsedSDatetime()));
return;
}
break;
case GET_ATTR_NAME:
if((_mode & (TEXT_MODE)) == 0) {
//Method '&{0}' can't be called here
_parser.error(XDEF.XDEF475, "&getAttrName");
}
break;
case GET_BNFRULE: {
if (npar == 2 && //BNFGRAMMAR_VALUE, XD_STRING
par1typ == XD_BNFGRAMMAR && //BNF grammar)
_cstack[_sp] >= 0 && _tstack[_sp] == XD_STRING) { //rulename
XDValue v = getCodeItem(_lastCodeIndex - 1);
if (v.getCode() == LD_GLOBAL) {
CompileVariable xv = (CompileVariable)
_globalVariables.getXVariable(v.getParam());
v = xv.getValue();
} else if (v.getCode() != LD_CODE) {
v = null;
}
if (v != null && v instanceof XDBNFGrammar) {
XDBNFGrammar g = (XDBNFGrammar) v;
String ruleName = getCodeItem(_cstack[_sp]).toString();
XDBNFRule r = g.getRule(ruleName);
if (r == null || r.ruleValue() == null) {
//BNF rule '&{0}' not exists
_parser.error(XDEF.XDEF108, ruleName);
}
}
}
break;
}
case NEW_BNFGRAMAR: {
if (npar == 1 && par1const >= 0 && par1typ == XD_STRING) {
//string constant in BNF contructor
SBuffer source = new SBuffer(
getCodeItem(par1const).stringValue(), _parser);
DefBNFGrammar dd;
try {
dd = new DefBNFGrammar(null,
-1, source, _parser.getReportWriter());
} catch (SRuntimeException ex) {
//error was reported to reporter;
dd = new DefBNFGrammar();
dd.setParam(-1);
dd.setSource(source.getString());
}
_code.set(_lastCodeIndex, dd);
_tstack[_sp] = resultType;
_cstack[_sp] = _lastCodeIndex; //constant!
return;
}
break;
}
case NEW_LOCALE: {
String lang = getCodeItem(par1const).toString();
if (npar == 1 && par1const >= 0) {
replaceTop(new DefLocale(lang));
_tstack[_sp] = XD_LOCALE;
_cstack[_sp] = _lastCodeIndex; //constant!
return;
} else if (npar == 2 && par1const >= 0 && _cstack[_sp] >= 0) {
String country = getCodeItem(_cstack[_sp]).toString();
replaceTwo(new DefLocale(lang, country));
_tstack[_sp] = XD_LOCALE;
_cstack[_sp] = _lastCodeIndex; //constant!
return;
} else if (npar == 3 && par1const >= 0
&& _cstack[_sp - 1] >= 0 && _cstack[_sp] >= 0) {
String country = getCodeItem(_cstack[_sp - 1]).toString();
String variant = getCodeItem(_cstack[_sp]).toString();
_code.remove(_lastCodeIndex--);
_code.remove(_lastCodeIndex--);
_sp -= 2;
replaceTop(new DefLocale(lang, country, variant));
return;
}
}
case SET_NAMEDVALUE: {
if (npar == 2) {
if (_tstack[_sp] == XD_CONTAINER) {
//????
} else if (_tstack[_sp] != XD_NAMEDVALUE) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "NamedValue");
}
} else if (npar == 3) {
if (_tstack[_sp - 1] != XD_STRING) {
//Value of type '&{0}' expected
_parser.error(XDEF.XDEF423, "String");
}
}
break;
}
default:
}
//check parameters
if ((method.getRestrictions() & _mode) == 0) {
_parser.error(XDEF.XDEF472, name);//Method '&{0}' not allowed here
code = UNDEF_CODE;
resultType = XD_UNDEF;
} else if (npar < method.getMinParams()) {
//More parameters required for method &{0}
_parser.error(XDEF.XDEF460, name);
code = UNDEF_CODE;
resultType = XD_UNDEF;
} else if (npar > method.getMaxParams()) {
if (method.getMaxParams() == 0) {
//Parameters are not allowed for method '&{0}'
_parser.error(XDEF.XDEF473, name);
} else {
//Too many parameters for method &{0}
_parser.error(XDEF.XDEF461, name);
}
code = UNDEF_CODE;
resultType = XD_UNDEF;
} else if (method.getParamTypes() != null) {
short mtype = XD_ANY;
for (int i = 0; i < npar; i++) {
if (i < method.getParamTypes().length) {
mtype = method.getParamTypes()[i];
}
int j = _sp + i + 1 - npar;
short ptype;
if (mtype != XD_ANY && mtype != (ptype = _tstack[j])) {
if (ptype != XD_ANY && ptype != XD_UNDEF) {
if (mtype == XD_DOUBLE &&
ptype == XD_LONG) {
if (npar - 1 - i == 0) {
topToFloat();
} else {
topXToFloat(npar - 1 - i);
}
} else {
//Incorrect parameter type
_parser.error(XDEF.XDEF467);
code = UNDEF_CODE;
resultType = XD_UNDEF;
break;
}
}
}
}
}
if (operator == null) {
operator = new CodeI1(resultType, code, npar);
}
if (resultType != XD_VOID) {
npar--;
}
addCode(operator, -npar);
}
////////////////////////////////////////////////////////////////////////////////
// Methods for generation of initialization code.
////////////////////////////////////////////////////////////////////////////////
/** Return the code item with the last stop of the initialization code
* sequence or return null.
*/
final CodeI1 getLastStop() {
//prevents to generate redundant jumps.
if (_lastCodeIndex != -1 && _initEnd >= 0) {
if (_lastCodeIndex != _initEnd) {
return (CodeI1) getCodeItem(_initEnd);
}
_code.remove(_lastCodeIndex--);
}
return null;
}
/** Add initialization code. */
final void addInitCode(final int actAdr, final CodeI1 lastStop) {
if (actAdr == _lastCodeIndex + 1) {
genStop();
} else if (actAdr < _lastCodeIndex) {
//gen init section
if (_init == -1) {
_init = actAdr + 1;
} else if (lastStop != null) {
lastStop._code = JMP_OP; //change it to jump to next addr
lastStop.setParam(actAdr + 1);
}
genStop();
_initEnd = _lastCodeIndex;
}
}
}
/** Object describing a script method. */
final class ScriptMethod {
/** The offset of method. */
private int _address;
/** The List of types of parameters. */
private final short[] _params;
/** The type of result of method. */
private final short _resultType;
/** The compilation mode of method (the purpose). */
private final short _mode;
/** List of code code addresses where method was called. */
private int[] _postdefs;
/** Source position where the method was declared. */
private final SPosition _spos;
/** Create new instance of ScriptMethod.
* @param resultType The result type of method.
* @param address The code index of method start.
* @param params Array of parameters types.
* @param mode The mode of method.
* @param spos source position where the method was declared.
*/
ScriptMethod(final short resultType,
final int address,
final short[] params,
final short mode,
final SPosition spos) {
_resultType = resultType;
_address = address;
_params = params;
_mode = mode;
_postdefs = null;
_spos = spos;
}
/** Add address of post defined item to the list. */
final void addPostDef(final int codeIndex) {
if (_postdefs == null) {
_postdefs = new int[]{codeIndex};
} else {
int[] x = _postdefs;
int len = x.length;
_postdefs = new int[len + 1];
System.arraycopy(x, 0, _postdefs, 0, len);
_postdefs[len] = codeIndex;
}
}
/** Resolves post-definition of a method (set address to all previous
* references).
* @param address address of method.
* @param g code generator.
* @return false if address was already set(i.e. error),
* otherwise return true (i.e. OK).
*/
final boolean resolvePostDef(final int address,
final CompileCode g) {
if (_address != -1) {
return false;
}
_address = address;
if (_postdefs != null) {
for (int pc: _postdefs) {
((CodeI1) g.getCodeItem(pc)).setParam(address);
}
_postdefs = null;
}
return true;
}
/** Get result type of method. */
final short getResultType() {return _resultType;}
/** Get address of method. */
final int getAddr() {return _address;}
/** Set address of method.
* @param address the address.
*/
final void setAddr(final int address) {_address = address;}
/** Get array with the list of parameter types. */
final short[] getParams() {return _params;}
/** Get address of method. */
final short getMode() {return _mode;}
/** Clear post-definition info. */
final void clearPostdefs() {_postdefs = null;}
/** Get source position where the method was declared.
* @return source position where the method was declared.
*/
final SPosition getSourcePosition() {return _spos;}
@Override
public final String toString() {
String result = getTypeName(_resultType) + " x(";
if (_params != null) {
for (short par : _params) {
if (!result.endsWith("x(")) {
result += ", ";
}
result += getTypeName(par);
}
}
return result + ')';
}
}
/** Object containing the external method. */
final class ExternalMethod {
/** Name of method (may be alias). */
private final String _name;
/** External method. */
private final Method _method;
/** Parameters of method. */
private final Class[] _mparams;
/** Constructor. */
ExternalMethod(final String name, final Method method) {
_method = method;
_name = name;
_mparams = _method.getParameterTypes();
}
/** Check if this is a method. */
final boolean isMethod(final String name, final Class[] params) {
if (!_name.equals(name)) {
return false;
}
if (_mparams.length != params.length) {
return false;
}
for (int i = 0; i < _mparams.length; i++) {
Class x = _mparams[i];
Class y = params[i];
if (y.equals(Long.TYPE) &&
(x.equals(Long.TYPE) || x.equals(Long.class)
|| x.equals(Integer.TYPE) || x.equals(Integer.class)
|| x.equals(Short.TYPE) || x.equals(Short.class)
|| x.equals(Byte.TYPE) || x.equals(Byte.class))
|| y.equals(Double.TYPE) &&
(x.equals(Double.TYPE) || x.equals(Double.class)
|| x.equals(Float.TYPE) || x.equals(Float.class))
|| y.equals(Boolean.TYPE) &&
(x.equals(Boolean.TYPE) || x.equals(Boolean.class))) {
continue;
}
if (!x.equals(y)) {
return false;
}
}
return true;
}
/** Get external method.
* @return Java external method object.
*/
final Method getMethod() {return _method;}
@Override
public final String toString() {return _name + "; " + _method;}
}