Remove is_binary from API

src/lib.rs

@@ -217,7 +217,6 @@ pub use types::{
     cursor_position::CursorPosition, history::History, side::Side,
     span_with_history::SpanWithHistory, text_with_cursors::TextWithCursors,
 };
-pub use utils::is_binary::is_binary;
 
 #[cfg(feature = "wasm")]
 pub mod wasm;

src/utils.rs

@@ -1,6 +1,6 @@
 pub mod common_prefix_len;
 pub mod common_suffix_len;
 pub mod find_longest_prefix_contained_within;
-pub mod is_binary;
 pub mod myers_diff;
 pub mod string_builder;
+pub mod string_or_nothing;

src/utils/is_binary.rs

@@ -1,26 +0,0 @@
-/// Heuristically determine if the given data is a binary or a text file's
-/// content.
-///
-/// Only text inputs can be reconciled using the crate's functions.
-#[must_use]
-pub fn is_binary(data: &[u8]) -> bool {
-    if data.contains(&0) {
-        // Even though the NUL character is valid in UTF-8, it's highly suspicious in
-        // human-readable text.
-        return true;
-    }
-
-    std::str::from_utf8(data).is_err()
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_is_binary() {
-        assert!(is_binary(&[0, 159, 146, 150]));
-        assert!(is_binary(&[0, 12]));
-        assert!(!is_binary(b"hello"));
-    }
-}

src/utils/string_or_nothing.rs

@@ -0,0 +1,26 @@
+/// Determine if the given data is a binary or a text file's content.
+///
+/// Returns the UTF8 parsed string if it's a text, or `None` if it's likely
+/// binary.
+#[must_use]
+pub fn string_or_nothing(data: &[u8]) -> Option<String> {
+    if data.contains(&0) {
+        // Even though the NUL character is valid in UTF-8, it's highly suspicious in
+        // human-readable text.
+        return None;
+    }
+
+    std::str::from_utf8(data).map(|s| s.to_string()).ok()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_string_or_nothing() {
+        assert_eq!(string_or_nothing(&[0, 159, 146, 150]), None);
+        assert_eq!(string_or_nothing(&[0, 12]), None);
+        assert_eq!(string_or_nothing(b"hello"), Some("hello".into()));
+    }
+}

src/wasm.rs

@@ -3,7 +3,10 @@ use core::str;
 
 use wasm_bindgen::prelude::*;
 
-use crate::{BuiltinTokenizer, CursorPosition, SpanWithHistory, TextWithCursors};
+use crate::{
+    BuiltinTokenizer, CursorPosition, SpanWithHistory, TextWithCursors,
+    utils::string_or_nothing::string_or_nothing,
+};
 
 #[global_allocator]
 static ALLOC: wee_alloc::WeeAlloc<'_> = wee_alloc::WeeAlloc::INIT;
@@ -54,10 +57,6 @@ pub fn reconcile_with_history(
 /// # Returns
 ///
 /// The merged document.
-///
-/// # Panics
-///
-/// If any of the input documents are not valid UTF-8 strings.
 #[wasm_bindgen(js_name = genericReconcile)]
 #[must_use]
 pub fn generic_reconcile(
@@ -68,22 +67,17 @@ pub fn generic_reconcile(
 ) -> Vec<u8> {
     set_panic_hook();
 
-    if crate::is_binary(parent) || crate::is_binary(left) || crate::is_binary(right) {
-        right.to_vec()
+    if let (Some(parent), Some(left), Some(right)) = (
+        string_or_nothing(parent),
+        string_or_nothing(left),
+        string_or_nothing(right),
+    ) {
+        crate::reconcile(&parent, &left.into(), &right.into(), &*tokenizer)
+            .apply()
+            .text()
+            .into_bytes()
     } else {
-        crate::reconcile(
-            str::from_utf8(parent).expect("parent must be valid UTF-8 because it's not binary"),
-            &str::from_utf8(left)
-                .expect("left must be valid UTF-8 because it's not binary")
-                .into(),
-            &str::from_utf8(right)
-                .expect("right must be valid UTF-8 because it's not binary")
-                .into(),
-            &*tokenizer,
-        )
-        .apply()
-        .text()
-        .into_bytes()
+        right.to_vec()
     }
 }
 
@@ -106,15 +100,6 @@ pub fn get_compact_diff(
     serde_json::to_string(&change_set).expect("Failed to serialize change set")
 }
 
-/// Heuristically determine if the given data is a binary or a text file's
-/// content.
-#[wasm_bindgen(js_name = isBinary)]
-#[must_use]
-pub fn is_binary(data: &[u8]) -> bool {
-    set_panic_hook();
-    crate::is_binary(data)
-}
-
 fn set_panic_hook() {
     // https://github.com/rustwasm/console_error_panic_hook#readme
     #[cfg(feature = "console_error_panic_hook")]