Migrate to fast-float2 (#4052)

Cargo.toml

@@ -50,7 +50,7 @@ arbitrary = "1"
 bitflags = "2.5.0"
 clap = "4.5.21"
 colored = "2.1.0"
-fast-float = "0.2.0"
+fast-float2 = "0.2.3"
 hashbrown = "0.15.1"
 indexmap = { version = "2.6.0", default-features = false }
 indoc = "2.0.5"

core/engine/Cargo.toml

@@ -86,7 +86,7 @@ num-integer.workspace = true
 bitflags.workspace = true
 indexmap = { workspace = true, features = ["std"] }
 ryu-js.workspace = true
-fast-float.workspace = true
+fast-float2.workspace = true
 once_cell = { workspace = true, features = ["std"] }
 tap.workspace = true
 sptr.workspace = true

core/engine/src/builtins/number/globals.rs

@@ -318,7 +318,7 @@ pub(crate) fn parse_float(
             // Prevent fast_float from parsing "inf", "+inf" as Infinity and "-inf" as -Infinity
             Ok(JsValue::nan())
         } else {
-            Ok(fast_float::parse_partial::<f64, _>(s).map_or_else(
+            Ok(fast_float2::parse_partial::<f64, _>(s).map_or_else(
                 |_| JsValue::nan(),
                 |(f, len)| {
                     if len > 0 {

core/parser/Cargo.toml

@@ -16,7 +16,7 @@ boa_macros.workspace = true
 boa_ast.workspace = true
 boa_profiler.workspace = true
 rustc-hash = { workspace = true, features = ["std"] }
-fast-float.workspace = true
+fast-float2.workspace = true
 num-traits.workspace = true
 bitflags.workspace = true
 num-bigint.workspace = true

core/parser/src/lexer/number.rs

@@ -402,7 +402,7 @@ impl<R> Tokenizer<R> for NumberLiteral {
             // casting precisely to check if the float doesn't lose info on truncation
             #[allow(clippy::cast_possible_truncation)]
             NumericKind::Rational /* base: 10 */ => {
-                let val: f64 = fast_float::parse(num_str).expect("Failed to parse float after checks");
+                let val: f64 = fast_float2::parse(num_str).expect("Failed to parse float after checks");
                 let int_val = val as i32;
 
                 // The truncated float should be identically to the non-truncated float for the conversion to be loss-less,

core/string/Cargo.toml

@@ -16,7 +16,7 @@ rustc-hash = { workspace = true, features = ["std"] }
 sptr.workspace = true
 static_assertions.workspace = true
 paste.workspace = true
-fast-float.workspace = true
+fast-float2.workspace = true
 
 [lints]
 workspace = true

core/string/src/lib.rs

@@ -717,7 +717,7 @@ impl JsString {
             return value;
         }
 
-        fast_float::parse(string).unwrap_or(f64::NAN)
+        fast_float2::parse(string).unwrap_or(f64::NAN)
     }
 
     /// Allocates a new [`RawJsString`] with an internal capacity of `str_len` chars.