init

2025-05-19 20:36:21 -05:00
commit f5303487be
1865 changed files with 260387 additions and 0 deletions
@@ -0,0 +1,45 @@
+import { defineProperties, fromTwos, getBigInt, mask, toTwos } from "../../utils/index.js";
+import { Typed } from "../typed.js";
+import { Coder, WordSize } from "./abstract-coder.js";
+const BN_0 = BigInt(0);
+const BN_1 = BigInt(1);
+const BN_MAX_UINT256 = BigInt("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
+/**
+ *  @_ignore
+ */
+export class NumberCoder extends Coder {
+    size;
+    signed;
+    constructor(size, signed, localName) {
+        const name = ((signed ? "int" : "uint") + (size * 8));
+        super(name, name, localName, false);
+        defineProperties(this, { size, signed }, { size: "number", signed: "boolean" });
+    }
+    defaultValue() {
+        return 0;
+    }
+    encode(writer, _value) {
+        let value = getBigInt(Typed.dereference(_value, this.type));
+        // Check bounds are safe for encoding
+        let maxUintValue = mask(BN_MAX_UINT256, WordSize * 8);
+        if (this.signed) {
+            let bounds = mask(maxUintValue, (this.size * 8) - 1);
+            if (value > bounds || value < -(bounds + BN_1)) {
+                this._throwError("value out-of-bounds", _value);
+            }
+            value = toTwos(value, 8 * WordSize);
+        }
+        else if (value < BN_0 || value > mask(maxUintValue, this.size * 8)) {
+            this._throwError("value out-of-bounds", _value);
+        }
+        return writer.writeValue(value);
+    }
+    decode(reader) {
+        let value = mask(reader.readValue(), this.size * 8);
+        if (this.signed) {
+            value = fromTwos(value, this.size * 8);
+        }
+        return value;
+    }
+}
+//# sourceMappingURL=number.js.map