improve error messages (#516)

terser · Nov 23, 2019 · d393ca6 · d393ca6
1 parent 6589965
commit d393ca6
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/lib/scope.js b/lib/scope.js
@@ -318,7 +318,7 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options) {
                 return !(sym instanceof AST_SymbolLet || sym instanceof AST_SymbolConst);
             })) {
                 js_error(
-                    node.name + " redeclared",
+                    `"${node.name}" is redeclared`,
                     node.start.file,
                     node.start.line,
                     node.start.col,
@@ -345,7 +345,7 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options) {
         }
         if (!(scope instanceof AST_Toplevel) && (node instanceof AST_Export || node instanceof AST_Import)) {
             js_error(
-                node.TYPE + " statement may only appear at top level",
+                `"${node.TYPE}" statement may only appear at the top level`,
                 node.start.file,
                 node.start.line,
                 node.start.col,

diff --git a/test/mocha/minify.js b/test/mocha/minify.js
@@ -356,7 +356,7 @@ describe("minify", function() {
                 result = Terser.minify(code);
                 var err = result.error;
                 assert.ok(err instanceof Error);
-                assert.strictEqual(err.stack.split(/\n/)[0], "SyntaxError: a redeclared");
+                assert.strictEqual(err.stack.split(/\n/)[0], `SyntaxError: "a" is redeclared`);
             });
         });
     });