* first action! (#1)

node_modules/smart-buffer/build/utils.js

@@ -0,0 +1,95 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+/**
+ * Error strings
+ */
+const ERRORS = {
+    INVALID_ENCODING: 'Invalid encoding provided. Please specify a valid encoding the internal Node.js Buffer supports.',
+    INVALID_SMARTBUFFER_SIZE: 'Invalid size provided. Size must be a valid integer greater than zero.',
+    INVALID_SMARTBUFFER_BUFFER: 'Invalid Buffer provided in SmartBufferOptions.',
+    INVALID_SMARTBUFFER_OBJECT: 'Invalid SmartBufferOptions object supplied to SmartBuffer constructor or factory methods.',
+    INVALID_OFFSET: 'An invalid offset value was provided.',
+    INVALID_OFFSET_NON_NUMBER: 'An invalid offset value was provided. A numeric value is required.',
+    INVALID_LENGTH: 'An invalid length value was provided.',
+    INVALID_LENGTH_NON_NUMBER: 'An invalid length value was provived. A numeric value is required.',
+    INVALID_TARGET_OFFSET: 'Target offset is beyond the bounds of the internal SmartBuffer data.',
+    INVALID_TARGET_LENGTH: 'Specified length value moves cursor beyong the bounds of the internal SmartBuffer data.',
+    INVALID_READ_BEYOND_BOUNDS: 'Attempted to read beyond the bounds of the managed data.',
+    INVALID_WRITE_BEYOND_BOUNDS: 'Attempted to write beyond the bounds of the managed data.'
+};
+exports.ERRORS = ERRORS;
+/**
+ * Checks if a given encoding is a valid Buffer encoding. (Throws an exception if check fails)
+ *
+ * @param { String } encoding The encoding string to check.
+ */
+function checkEncoding(encoding) {
+    if (!Buffer.isEncoding(encoding)) {
+        throw new Error(ERRORS.INVALID_ENCODING);
+    }
+}
+exports.checkEncoding = checkEncoding;
+/**
+ * Checks if a given number is a finite integer. (Throws an exception if check fails)
+ *
+ * @param { Number } value The number value to check.
+ */
+function isFiniteInteger(value) {
+    return typeof value === 'number' && isFinite(value) && isInteger(value);
+}
+exports.isFiniteInteger = isFiniteInteger;
+/**
+ * Checks if an offset/length value is valid. (Throws an exception if check fails)
+ *
+ * @param value The value to check.
+ * @param offset True if checking an offset, false if checking a length.
+ */
+function checkOffsetOrLengthValue(value, offset) {
+    if (typeof value === 'number') {
+        // Check for non finite/non integers
+        if (!isFiniteInteger(value) || value < 0) {
+            throw new Error(offset ? ERRORS.INVALID_OFFSET : ERRORS.INVALID_LENGTH);
+        }
+    }
+    else {
+        throw new Error(offset ? ERRORS.INVALID_OFFSET_NON_NUMBER : ERRORS.INVALID_LENGTH_NON_NUMBER);
+    }
+}
+/**
+ * Checks if a length value is valid. (Throws an exception if check fails)
+ *
+ * @param { Number } length The value to check.
+ */
+function checkLengthValue(length) {
+    checkOffsetOrLengthValue(length, false);
+}
+exports.checkLengthValue = checkLengthValue;
+/**
+ * Checks if a offset value is valid. (Throws an exception if check fails)
+ *
+ * @param { Number } offset The value to check.
+ */
+function checkOffsetValue(offset) {
+    checkOffsetOrLengthValue(offset, true);
+}
+exports.checkOffsetValue = checkOffsetValue;
+/**
+ * Checks if a target offset value is out of bounds. (Throws an exception if check fails)
+ *
+ * @param { Number } offset The offset value to check.
+ * @param { SmartBuffer } buff The SmartBuffer instance to check against.
+ */
+function checkTargetOffset(offset, buff) {
+    if (offset < 0 || offset > buff.length) {
+        throw new Error(ERRORS.INVALID_TARGET_OFFSET);
+    }
+}
+exports.checkTargetOffset = checkTargetOffset;
+/**
+ * Determines whether a given number is a integer.
+ * @param value The number to check.
+ */
+function isInteger(value) {
+    return typeof value === 'number' && isFinite(value) && Math.floor(value) === value;
+}
+//# sourceMappingURL=utils.js.map