private static void compileConstants(String consFile, String defsFile) {
try {
PrintWriter out = new PrintWriter(new FileWriter(consFile));
for (ConstExpression ce : Consts.getDeclaredConsts()) {
String afterType = "";
if (ce instanceof ArrayConstant) {
if (((ArrayConstant) ce).getValues().isEmpty()) {
continue;
}
out.print("int32_t ");
afterType = "[" + ((ArrayConstant) ce).size() + "]";
} else {
Type ceType = ce.getType();
if (ce.getType() instanceof IntType) {
out.print("int32_t ");
} else if (ce.getType() instanceof FloatType) {
out.print("double ");
} else {
throw new RuntimeException("No equivalent C++ type for " + ceType);
}
}
out.print(ce.getName());
out.print(afterType);
out.print(" = ");
compileConstants_(out, ce);
out.println();
}
// Now check if any of the #defines can be copied over (have integer value)
if (defsFile != null) {
Scanner in = new Scanner(new File(defsFile));
while (in.hasNext()) {
String def = in.next();
if (def.equals("#define")) {
String name = in.next();
String value = in.nextLine().trim();
try {
int ival = Integer.decode(value);
out.println("int32_t " + name + " = " + ival);
} catch (Throwable e) {
// Ignore it.
}
} else {
in.nextLine();
}
}
in.close();
}
out.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
private static void compileConstants_(PrintWriter out, ConstExpression value) {
if (value instanceof ArrayConstant) {
ArrayConstant ac = (ArrayConstant) value;
Iterator<ConstExpression> i = ac.getValues().iterator();
out.print("{ ");
while (i.hasNext()) {
compileConstants_(out, i.next());
if (i.hasNext()) {
out.print(", ");
}
}
out.print("} ");
} else {
out.print(value.toString().substring(1)); // remove the "C"
if (value.getType() instanceof FloatType) {
out.println(".0"); // to make sure that floating point division is used
}
}
}