icybear/fabric-carpet
1
0 Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add bitwise operations to scarpet (#1094)

Browse Source
This commit is contained in:
Ghoulboy authored and GitHub committed 2021-11-09 23:55:54 +01:00
1 parent b93e3238b7
commit b935fadadf
5 files changed
+105 -2
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

src/main/java/carpet/script/language/Operators.java
+58
View File
@@ -84,6 +84,30 @@ public class Operators {
expression.addBinaryOperator("^", precedence.get("exponent^"), false, (v1, v2) ->
new NumericValue(java.lang.Math.pow(NumericValue.asNumber(v1).getDouble(), NumericValue.asNumber(v2).getDouble())));
expression.addFunction("bitwise_and", lv -> {
int size = lv.size();
if (size == 0) return Value.NULL;
long accumulator = NumericValue.asNumber(lv.get(0)).getLong();
for (Value v: lv.subList(1, size)) accumulator = accumulator & NumericValue.asNumber(v).getLong();
return new NumericValue(accumulator);
});
expression.addFunction("bitwise_xor", lv -> {
int size = lv.size();
if (size == 0) return Value.NULL;
long accumulator = NumericValue.asNumber(lv.get(0)).getLong();
for (Value v: lv.subList(1, size)) accumulator = accumulator ^ NumericValue.asNumber(v).getLong();
return new NumericValue(accumulator);
});
expression.addFunction("bitwise_or", lv -> {
int size = lv.size();
if (size == 0) return Value.NULL;
long accumulator = NumericValue.asNumber(lv.get(0)).getLong();
for (Value v: lv.subList(1, size)) accumulator = accumulator | NumericValue.asNumber(v).getLong();
return new NumericValue(accumulator);
});
// lazy cause RHS is only conditional
expression.addLazyBinaryOperator("&&", precedence.get("and&&"), false, true, t -> Context.Type.BOOLEAN, (c, t, lv1, lv2) ->
{ // todo check how is optimizations going
@@ -202,6 +226,40 @@ public class Operators {
});
expression.addFunctionalEquivalence("<=", "nondecreasing");
expression.addMathematicalBinaryIntFunction("bitwise_shift_left", (num, amount) -> {
return num << amount;
});
expression.addMathematicalBinaryIntFunction("bitwise_shift_right", (num, amount) -> {
return num >> amount;
});
expression.addMathematicalBinaryIntFunction("bitwise_roll_left", (num, num2) -> {
long amount = num2 % 64;
long amountToRoll = 64 - amount;
long rolledBits = ((-1L) >> amountToRoll) << amountToRoll;
long rolledAmount = (num & rolledBits) >> amountToRoll;
return num << amount | rolledAmount;
});
expression.addMathematicalBinaryIntFunction("bitwise_roll_right", (num, num2) -> {
long amount = num2 % 64;
long amountToRoll = 64 - amount;
long rolledBits = ((-1L) << amountToRoll) >> amountToRoll;
long rolledAmount = (num & rolledBits) << amountToRoll;
return num >> amount | rolledAmount;
});
expression.addMathematicalUnaryIntFunction("bitwise_not", d -> {
long num = d.longValue();
return num ^ (-1L);
});
expression.addMathematicalUnaryIntFunction("bitwise_popcount", d -> Long.valueOf(Long.bitCount(d.longValue())));
expression.addMathematicalUnaryIntFunction("double_to_long_bits", Double::doubleToLongBits);
expression.addUnaryFunction("long_to_double_bits", v -> {
return new NumericValue(Double.longBitsToDouble(NumericValue.asNumber(v).getLong()));
});
expression.addBinaryOperator("==", precedence.get("equal==!="), false, (v1, v2) ->
v1.equals(v2) ? Value.TRUE : Value.FALSE);
expression.addFunction("equal", lv -> {