protected IRExpression compile_impl() {
ISymbol symbol = _expr().getSymbol();
ICompilableType gsClass = getGosuClass();
if ((Keyword.KW_this.equals(symbol.getName()) || Keyword.KW_super.equals(symbol.getName()))
&&
// 'this' must be an external symbol when in a program e.g., studio debugger expression
(!(gsClass instanceof IGosuProgram) || gsClass.isAnonymous())) {
if (_cc().isBlockInvoke() && _cc().currentlyCompilingBlock()) {
while (gsClass instanceof IBlockClass) {
gsClass = gsClass.getEnclosingType();
}
return pushOuter(gsClass);
} else {
return pushThis();
}
} else if (symbol instanceof DynamicPropertySymbol
&& ((DynamicPropertySymbol) symbol).getGetterDfs() instanceof OuterFunctionSymbol) {
// 'outer'
return pushOuterForOuterSymbol();
} else {
return pushSymbolValue(symbol);
}
}
public IRExpression pushSymbolValue(ISymbol symbol) {
IType type = symbol.getType();
Class symClass;
IReducedSymbol reducedSym;
if (symbol instanceof ReducedSymbol.SyntheticSymbol) {
reducedSym = ((ReducedSymbol.SyntheticSymbol) symbol).getReducedSymbol();
symClass = reducedSym.getSymbolClass();
} else {
reducedSym = symbol;
symClass = symbol.getClass();
}
if (_cc().isExternalSymbol(reducedSym.getName())) {
// unbox( symbols.getValue( name ) )
return unboxValueToType(
reducedSym.getType(),
callMethod(
IExternalSymbolMap.class,
"getValue",
new Class[] {String.class, int.class},
pushExternalSymbolsMap(),
Arrays.asList(
pushConstant(reducedSym.getName()), pushConstant(getArrayDims(reducedSym)))));
} else if (DynamicSymbol.class.isAssignableFrom(symClass)) {
// Instance or Static field
IRProperty irProp = IRPropertyFactory.createIRProperty(reducedSym);
if (!irProp.isStatic()) {
if (isMemberOnEnclosingType(reducedSym) != null) {
// Instance field from 'outer'
return getField_new(
irProp, pushOuter(reducedSym.getGosuClass()), getDescriptor(reducedSym.getType()));
} else {
// Instance field from 'this'
return getField_new(irProp, pushThis(), getDescriptor(reducedSym.getType()));
}
} else {
// Static field
return getField_new(irProp, null, getDescriptor(reducedSym.getType()));
}
} else if (CapturedSymbol.class.isAssignableFrom(symClass)) {
// Captured symbol is stored as a Field on an anonymous inner class (one elem array of
// symbol's type)
// e.g., val$myFiield[0] = value. Note a captured symbol is duplicated in all nested classes.
IRProperty irProp = IRPropertyFactory.createIRProperty(getGosuClass(), reducedSym);
return getField_new(irProp, pushThis(), getDescriptor(reducedSym.getType()));
} else if (reducedSym.getIndex() >= 0) {
// Local var
if (reducedSym.isValueBoxed()) {
// Local var is captured in an anonymous inner class.
// Symbol's value maintained as a one elem array of symbol's type.
return buildArrayLoad(
identifier(_cc().getSymbol(reducedSym.getName())), 0, getDescriptor(type));
} else {
// Simple local var
return identifier(_cc().getSymbol(reducedSym.getName()));
}
} else if (DynamicPropertySymbol.class.isAssignableFrom(symClass)) {
IRProperty irProp;
if (reducedSym instanceof DynamicPropertySymbol) {
irProp = IRPropertyFactory.createIRProperty((DynamicPropertySymbol) reducedSym);
} else {
irProp = IRPropertyFactory.createIRProperty((ReducedDynamicPropertySymbol) reducedSym);
}
IRExpression root;
if (irProp.isStatic()) {
root = null;
} else {
ICompilableType targetType = isMemberOnEnclosingType(reducedSym);
if (targetType != null) {
root = pushOuter(targetType);
} else {
root = pushThis();
}
}
IRExpression getterCall =
callMethod(irProp.getGetterMethod(), root, Collections.<IRExpression>emptyList());
return castResultingTypeIfNecessary(
getDescriptor(reducedSym.getType()), irProp.getType(), getterCall);
} else {
throw new UnsupportedOperationException(
"Don't know how to compile symbol: "
+ reducedSym.getClass().getSimpleName()
+ ": "
+ reducedSym.getName()
+ ": "
+ reducedSym.getType());
}
}