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fixed bug: invoke java variable parameter type method problem

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UnlegitDqrk
2026-03-01 13:01:18 +01:00
parent 068451886d
commit d0c84972dd
1 changed files with 34 additions and 28 deletions
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62
jse/src/main/java/org/luaj/vm2/libs/jse/JavaMember.java
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@@ -1,26 +1,27 @@
/******************************************************************************* /*******************************************************************************
* Copyright (c) 2011 Luaj.org. All rights reserved. * Copyright (c) 2011 Luaj.org. All rights reserved.
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy * Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal * of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights * in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is * copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions: * furnished to do so, subject to the following conditions:
* *
* The above copyright notice and this permission notice shall be included in * The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software. * all copies or substantial portions of the Software.
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE. * THE SOFTWARE.
******************************************************************************/ ******************************************************************************/
package org.luaj.vm2.libs.jse; package org.luaj.vm2.libs.jse;
import java.lang.reflect.Array;
import org.luaj.vm2.Varargs; import org.luaj.vm2.Varargs;
import org.luaj.vm2.libs.VarArgFunction; import org.luaj.vm2.libs.VarArgFunction;
import org.luaj.vm2.libs.jse.CoerceLuaToJava.Coercion; import org.luaj.vm2.libs.jse.CoerceLuaToJava.Coercion;
@@ -28,10 +29,10 @@ import org.luaj.vm2.libs.jse.CoerceLuaToJava.Coercion;
/** /**
* Java method or constructor. * Java method or constructor.
* <p> * <p>
* Primarily handles argument coercion for parameter lists including scoring of compatibility and * Primarily handles argument coercion for parameter lists including scoring of compatibility and
* java varargs handling. * java varargs handling.
* <p> * <p>
* This class is not used directly. * This class is not used directly.
* It is an abstract base class for {@link JavaConstructor} and {@link JavaMethod}. * It is an abstract base class for {@link JavaConstructor} and {@link JavaMethod}.
* @see JavaConstructor * @see JavaConstructor
* @see JavaMethod * @see JavaMethod
@@ -40,20 +41,20 @@ import org.luaj.vm2.libs.jse.CoerceLuaToJava.Coercion;
*/ */
abstract abstract
class JavaMember extends VarArgFunction { class JavaMember extends VarArgFunction {
static final int METHOD_MODIFIERS_VARARGS = 0x80; static final int METHOD_MODIFIERS_VARARGS = 0x80;
final Coercion[] fixedargs; final Coercion[] fixedargs;
final Coercion varargs; final Coercion varargs;
protected JavaMember(Class[] params, int modifiers) { protected JavaMember(Class[] params, int modifiers) {
boolean isvarargs = ((modifiers & METHOD_MODIFIERS_VARARGS) != 0); boolean isvarargs = ((modifiers & METHOD_MODIFIERS_VARARGS) != 0);
fixedargs = new Coercion[isvarargs? params.length-1: params.length]; fixedargs = new CoerceLuaToJava.Coercion[isvarargs? params.length-1: params.length];
for ( int i=0; i<fixedargs.length; i++ ) for ( int i=0; i<fixedargs.length; i++ )
fixedargs[i] = CoerceLuaToJava.getCoercion( params[i] ); fixedargs[i] = CoerceLuaToJava.getCoercion( params[i] );
varargs = isvarargs? CoerceLuaToJava.getCoercion( params[params.length-1] ): null; varargs = isvarargs? CoerceLuaToJava.getCoercion( params[params.length-1] ): null;
} }
int score(Varargs args) { int score(Varargs args) {
int n = args.narg(); int n = args.narg();
int s = n>fixedargs.length? CoerceLuaToJava.SCORE_WRONG_TYPE * (n-fixedargs.length): 0; int s = n>fixedargs.length? CoerceLuaToJava.SCORE_WRONG_TYPE * (n-fixedargs.length): 0;
@@ -64,7 +65,7 @@ class JavaMember extends VarArgFunction {
s += varargs.score( args.arg(k+1) ); s += varargs.score( args.arg(k+1) );
return s; return s;
} }
protected Object[] convertArgs(Varargs args) { protected Object[] convertArgs(Varargs args) {
Object[] a; Object[] a;
if ( varargs == null ) { if ( varargs == null ) {
@@ -73,6 +74,11 @@ class JavaMember extends VarArgFunction {
a[i] = fixedargs[i].coerce( args.arg(i+1) ); a[i] = fixedargs[i].coerce( args.arg(i+1) );
} else { } else {
int n = Math.max(fixedargs.length,args.narg()); int n = Math.max(fixedargs.length,args.narg());
// This situation indicates that the method has only one input parameter,
// and the parameter is a variable parameter type, etc: append(String...args).
if (n == 0 && varargs instanceof CoerceLuaToJava.ArrayCoercion) {
return new Object[] {Array.newInstance(((CoerceLuaToJava.ArrayCoercion)varargs).componentType,0)};
}
a = new Object[n]; a = new Object[n];
for ( int i=0; i<fixedargs.length; i++ ) for ( int i=0; i<fixedargs.length; i++ )
a[i] = fixedargs[i].coerce( args.arg(i+1) ); a[i] = fixedargs[i].coerce( args.arg(i+1) );
@@ -81,4 +87,4 @@ class JavaMember extends VarArgFunction {
} }
return a; return a;
} }
} }