public ImExpr lookupVar(GimpleExpr gimpleExpr) {
if (gimpleExpr instanceof SymbolRef) {
SymbolRef symbol = (SymbolRef) gimpleExpr;
ImExpr variable = symbolTable.get(symbol.getId());
if (variable != null) {
return variable;
}
if (symbol.getName() != null) {
variable = translationContext.findGlobal(symbol.getName());
}
if (variable == null) {
throw new IllegalArgumentException(
"No such variable '" + gimpleExpr + "' (id=" + symbol.getId() + ")");
}
return variable;
} else {
throw new UnsupportedOperationException(
"Expected GimpleVar, got: "
+ gimpleExpr
+ " ["
+ gimpleExpr.getClass().getSimpleName()
+ "]");
}
}
public ImExpr resolveExpr(GimpleExpr gimpleExpr) {
if (gimpleExpr instanceof GimpleMemRef) {
return resolveExpr(((GimpleMemRef) gimpleExpr).getPointer()).memref();
} else if (gimpleExpr instanceof SymbolRef) {
return lookupVar(gimpleExpr);
} else if (gimpleExpr instanceof GimpleStringConstant) {
return new ImStringConstant((GimpleStringConstant) gimpleExpr);
} else if (gimpleExpr instanceof GimpleConstant) {
return new ImPrimitiveConstant(this, (GimpleConstant) gimpleExpr);
} else if (gimpleExpr instanceof GimpleAddressOf) {
return resolveExpr(((GimpleAddressOf) gimpleExpr).getValue()).addressOf();
} else if (gimpleExpr instanceof GimpleFunctionRef) {
return new ImFunctionExpr(
translationContext.resolveMethod(((GimpleFunctionRef) gimpleExpr).getName()));
} else if (gimpleExpr instanceof GimpleArrayRef) {
GimpleArrayRef arrayRef = (GimpleArrayRef) gimpleExpr;
return resolveExpr(arrayRef.getArray()).elementAt(resolveExpr(arrayRef.getIndex()));
} else if (gimpleExpr instanceof GimpleComponentRef) {
GimpleComponentRef componentRef = (GimpleComponentRef) gimpleExpr;
return resolveExpr(componentRef.getValue()).member(componentRef.getMember());
} else if (gimpleExpr instanceof GimpleConstantRef) {
return resolveExpr(((GimpleConstantRef) gimpleExpr).getValue());
}
throw new UnsupportedOperationException(gimpleExpr.toString());
}