fix(es/minifier): Do not evaluate slice calls with negative index (#…

…8726)

**Related issue:**

 - Closes #8715.

crates/swc_ecma_minifier/src/compress/pure/evaluate.rs

@@ -76,6 +76,10 @@ impl Pure<'_> {
                         if let Value::Known(start) =
                             call.args[0].expr.as_pure_number(&self.expr_ctx)
                         {
+                            if start.is_sign_negative() {
+                                return;
+                            }
+
                             let start = start.floor() as usize;
 
                             self.changed = true;
@@ -98,9 +102,17 @@ impl Pure<'_> {
                         let start = call.args[0].expr.as_pure_number(&self.expr_ctx);
                         let end = call.args[1].expr.as_pure_number(&self.expr_ctx);
                         if let Value::Known(start) = start {
+                            if start.is_sign_negative() {
+                                return;
+                            }
+
                             let start = start.floor() as usize;
 
                             if let Value::Known(end) = end {
+                                if end.is_sign_negative() {
+                                    return;
+                                }
+
                                 let end = end.floor() as usize;
                                 let end = end.min(arr.elems.len());
 

crates/swc_ecma_minifier/tests/fixture/issues/8715/config.json

@@ -0,0 +1,47 @@
+{
+    "defaults": true,
+    "arguments": false,
+    "arrows": true,
+    "booleans": true,
+    "booleans_as_integers": false,
+    "collapse_vars": true,
+    "comparisons": true,
+    "computed_props": true,
+    "conditionals": true,
+    "dead_code": true,
+    "directives": true,
+    "drop_console": false,
+    "drop_debugger": true,
+    "evaluate": true,
+    "expression": false,
+    "hoist_funs": false,
+    "hoist_props": true,
+    "hoist_vars": false,
+    "if_return": true,
+    "join_vars": true,
+    "keep_classnames": false,
+    "keep_fargs": true,
+    "keep_fnames": false,
+    "keep_infinity": false,
+    "loops": true,
+    "negate_iife": true,
+    "properties": true,
+    "reduce_funcs": false,
+    "reduce_vars": false,
+    "side_effects": true,
+    "switches": true,
+    "typeofs": true,
+    "unsafe": false,
+    "unsafe_arrows": false,
+    "unsafe_comps": false,
+    "unsafe_Function": false,
+    "unsafe_math": false,
+    "unsafe_symbols": false,
+    "unsafe_methods": false,
+    "unsafe_proto": false,
+    "unsafe_regexp": false,
+    "unsafe_undefined": false,
+    "unused": true,
+    "const_to_let": true,
+    "pristine_globals": true
+}

crates/swc_ecma_minifier/tests/fixture/issues/8715/input.js

@@ -0,0 +1,2 @@
+console.log([1, 2, 3].slice(-1))
+console.log([1, 2, 3].slice(-1, 0))

crates/swc_ecma_minifier/tests/fixture/issues/8715/output.js

@@ -0,0 +1,9 @@
+console.log([
+    1,
+    2,
+    3
+].slice(-1)), console.log([
+    1,
+    2,
+    3
+].slice(-1, 0));