public void generateCompoundAssignment(
BlockScope currentScope,
CodeStream codeStream,
Expression expression,
int operator,
int assignmentImplicitConversion,
boolean valueRequired) {
boolean isStatic;
// check if compound assignment is the only usage of a private field
reportOnlyUselesslyReadPrivateField(currentScope, this.binding, valueRequired);
FieldBinding codegenBinding = this.binding.original();
this.receiver.generateCode(currentScope, codeStream, !(isStatic = codegenBinding.isStatic()));
if (isStatic) {
if (this.syntheticAccessors == null || this.syntheticAccessors[FieldReference.READ] == null) {
TypeBinding constantPoolDeclaringClass =
CodeStream.getConstantPoolDeclaringClass(
currentScope,
codegenBinding,
this.actualReceiverType,
this.receiver.isImplicitThis());
codeStream.fieldAccess(Opcodes.OPC_getstatic, codegenBinding, constantPoolDeclaringClass);
} else {
codeStream.invoke(
Opcodes.OPC_invokestatic,
this.syntheticAccessors[FieldReference.READ],
null /* default declaringClass */);
}
} else {
codeStream.dup();
if (this.syntheticAccessors == null || this.syntheticAccessors[FieldReference.READ] == null) {
TypeBinding constantPoolDeclaringClass =
CodeStream.getConstantPoolDeclaringClass(
currentScope,
codegenBinding,
this.actualReceiverType,
this.receiver.isImplicitThis());
codeStream.fieldAccess(Opcodes.OPC_getfield, codegenBinding, constantPoolDeclaringClass);
} else {
codeStream.invoke(
Opcodes.OPC_invokestatic,
this.syntheticAccessors[FieldReference.READ],
null /* default declaringClass */);
}
}
int operationTypeID;
switch (operationTypeID = (this.implicitConversion & TypeIds.IMPLICIT_CONVERSION_MASK) >> 4) {
case T_JavaLangString:
case T_JavaLangObject:
case T_undefined:
codeStream.generateStringConcatenationAppend(currentScope, null, expression);
break;
default:
if (this.genericCast != null) codeStream.checkcast(this.genericCast);
// promote the array reference to the suitable operation type
codeStream.generateImplicitConversion(this.implicitConversion);
// generate the increment value (will by itself be promoted to the operation value)
if (expression == IntLiteral.One) { // prefix operation
codeStream.generateConstant(expression.constant, this.implicitConversion);
} else {
expression.generateCode(currentScope, codeStream, true);
}
// perform the operation
codeStream.sendOperator(operator, operationTypeID);
// cast the value back to the array reference type
codeStream.generateImplicitConversion(assignmentImplicitConversion);
}
fieldStore(
currentScope,
codeStream,
codegenBinding,
this.syntheticAccessors == null ? null : this.syntheticAccessors[FieldReference.WRITE],
this.actualReceiverType,
this.receiver.isImplicitThis(),
valueRequired);
// no need for generic cast as value got dupped
}
