From: Alex Lam S.L Date: Fri, 12 May 2017 06:57:41 +0000 (+0800) Subject: remove support for `const` (#1910) X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=c391576d52852322a7fcfbaeabc9d5626e628c8b;p=UglifyJS.git remove support for `const` (#1910) As this is not part of ES5. --- diff --git a/lib/ast.js b/lib/ast.js index 962c8f7b..57956233 100644 --- a/lib/ast.js +++ b/lib/ast.js @@ -495,10 +495,10 @@ var AST_Finally = DEFNODE("Finally", null, { $documentation: "A `finally` node; only makes sense as part of a `try` statement" }, AST_Block); -/* -----[ VAR/CONST ]----- */ +/* -----[ VAR ]----- */ var AST_Definitions = DEFNODE("Definitions", "definitions", { - $documentation: "Base class for `var` or `const` nodes (variable declarations/initializations)", + $documentation: "Base class for `var` nodes (variable declarations/initializations)", $propdoc: { definitions: "[AST_VarDef*] array of variable definitions" }, @@ -516,14 +516,10 @@ var AST_Var = DEFNODE("Var", null, { $documentation: "A `var` statement" }, AST_Definitions); -var AST_Const = DEFNODE("Const", null, { - $documentation: "A `const` statement" -}, AST_Definitions); - var AST_VarDef = DEFNODE("VarDef", "name value", { $documentation: "A variable declaration; only appears in a AST_Definitions node", $propdoc: { - name: "[AST_SymbolVar|AST_SymbolConst] name of the variable", + name: "[AST_SymbolVar] name of the variable", value: "[AST_Node?] initializer, or null of there's no initializer" }, _walk: function(visitor) { @@ -728,17 +724,13 @@ var AST_SymbolAccessor = DEFNODE("SymbolAccessor", null, { }, AST_Symbol); var AST_SymbolDeclaration = DEFNODE("SymbolDeclaration", "init", { - $documentation: "A declaration symbol (symbol in var/const, function name or argument, symbol in catch)", + $documentation: "A declaration symbol (symbol in var, function name or argument, symbol in catch)", }, AST_Symbol); var AST_SymbolVar = DEFNODE("SymbolVar", null, { $documentation: "Symbol defining a variable", }, AST_SymbolDeclaration); -var AST_SymbolConst = DEFNODE("SymbolConst", null, { - $documentation: "A constant declaration" -}, AST_SymbolDeclaration); - var AST_SymbolFunarg = DEFNODE("SymbolFunarg", null, { $documentation: "Symbol naming a function argument", }, AST_SymbolVar); diff --git a/lib/compress.js b/lib/compress.js index 1ded032b..892bceef 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -479,8 +479,7 @@ merge(Compressor.prototype, { if (def.fixed === false) return false; if (def.fixed != null && (!value || def.references.length > 0)) return false; return !def.orig.some(function(sym) { - return sym instanceof AST_SymbolConst - || sym instanceof AST_SymbolDefun + return sym instanceof AST_SymbolDefun || sym instanceof AST_SymbolLambda; }); } @@ -497,7 +496,7 @@ merge(Compressor.prototype, { def.escaped = false; if (def.scope.uses_eval) { def.fixed = false; - } else if (!def.global || def.orig[0] instanceof AST_SymbolConst || compressor.toplevel(def)) { + } else if (!def.global || compressor.toplevel(def)) { def.fixed = undefined; } else { def.fixed = false; @@ -531,14 +530,6 @@ merge(Compressor.prototype, { return lhs instanceof AST_SymbolRef && lhs.definition().orig[0] instanceof AST_SymbolLambda; } - function is_reference_const(ref) { - if (!(ref instanceof AST_SymbolRef)) return false; - var orig = ref.definition().orig; - for (var i = orig.length; --i >= 0;) { - if (orig[i] instanceof AST_SymbolConst) return true; - } - } - function find_variable(compressor, name) { var scope, i = 0; while (scope = compressor.parent(i++)) { @@ -804,8 +795,7 @@ merge(Compressor.prototype, { return make_node(AST_SymbolRef, expr.name, expr.name); } } else { - var lhs = expr[expr instanceof AST_Assign ? "left" : "expression"]; - return !is_reference_const(lhs) && lhs; + return expr[expr instanceof AST_Assign ? "left" : "expression"]; } } @@ -1988,7 +1978,6 @@ merge(Compressor.prototype, { && node instanceof AST_Assign && node.operator == "=" && node.left instanceof AST_SymbolRef - && !is_reference_const(node.left) && scope === self) { node.right.walk(tw); return true; @@ -3194,7 +3183,7 @@ merge(Compressor.prototype, { && (left.operator == "++" || left.operator == "--")) { left = left.expression; } else left = null; - if (!left || is_lhs_read_only(left) || is_reference_const(left)) { + if (!left || is_lhs_read_only(left)) { expressions[++i] = cdr; continue; } diff --git a/lib/mozilla-ast.js b/lib/mozilla-ast.js index e97d6191..7d246758 100644 --- a/lib/mozilla-ast.js +++ b/lib/mozilla-ast.js @@ -172,7 +172,7 @@ }); }, VariableDeclaration: function(M) { - return new (M.kind === "const" ? AST_Const : AST_Var)({ + return new AST_Var({ start : my_start_token(M), end : my_end_token(M), definitions : M.declarations.map(from_moz) @@ -208,7 +208,7 @@ Identifier: function(M) { var p = FROM_MOZ_STACK[FROM_MOZ_STACK.length - 2]; return new ( p.type == "LabeledStatement" ? AST_Label - : p.type == "VariableDeclarator" && p.id === M ? (p.kind == "const" ? AST_SymbolConst : AST_SymbolVar) + : p.type == "VariableDeclarator" && p.id === M ? AST_SymbolVar : p.type == "FunctionExpression" ? (p.id === M ? AST_SymbolLambda : AST_SymbolFunarg) : p.type == "FunctionDeclaration" ? (p.id === M ? AST_SymbolDefun : AST_SymbolFunarg) : p.type == "CatchClause" ? AST_SymbolCatch @@ -331,7 +331,7 @@ def_to_moz(AST_Definitions, function To_Moz_VariableDeclaration(M) { return { type: "VariableDeclaration", - kind: M instanceof AST_Const ? "const" : "var", + kind: "var", declarations: M.definitions.map(to_moz) }; }); diff --git a/lib/output.js b/lib/output.js index 33f4c533..0b98825f 100644 --- a/lib/output.js +++ b/lib/output.js @@ -1033,9 +1033,6 @@ function OutputStream(options) { DEFPRINT(AST_Var, function(self, output){ self._do_print(output, "var"); }); - DEFPRINT(AST_Const, function(self, output){ - self._do_print(output, "const"); - }); function parenthesize_for_noin(node, output, noin) { if (!noin) node.print(output); diff --git a/lib/parse.js b/lib/parse.js index 3493f8e6..c432ad7a 100644 --- a/lib/parse.js +++ b/lib/parse.js @@ -916,9 +916,6 @@ function parse($TEXT, options) { case "var": return tmp = var_(), semicolon(), tmp; - case "const": - return tmp = const_(), semicolon(), tmp; - case "with": if (S.input.has_directive("use strict")) { croak("Strict mode may not include a with statement"); @@ -1153,16 +1150,13 @@ function parse($TEXT, options) { }); }; - function vardefs(no_in, in_const) { + function vardefs(no_in) { var a = []; for (;;) { a.push(new AST_VarDef({ start : S.token, - name : as_symbol(in_const ? AST_SymbolConst : AST_SymbolVar), - value : is("operator", "=") - ? (next(), expression(false, no_in)) - : in_const && S.input.has_directive("use strict") - ? croak("Missing initializer in const declaration") : null, + name : as_symbol(AST_SymbolVar), + value : is("operator", "=") ? (next(), expression(false, no_in)) : null, end : prev() })); if (!is("punc", ",")) @@ -1175,15 +1169,7 @@ function parse($TEXT, options) { var var_ = function(no_in) { return new AST_Var({ start : prev(), - definitions : vardefs(no_in, false), - end : prev() - }); - }; - - var const_ = function() { - return new AST_Const({ - start : prev(), - definitions : vardefs(false, true), + definitions : vardefs(no_in), end : prev() }); }; diff --git a/lib/scope.js b/lib/scope.js index c8d7c6bb..ea08d775 100644 --- a/lib/scope.js +++ b/lib/scope.js @@ -156,8 +156,7 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options){ // later. (node.scope = defun.parent_scope).def_function(node); } - else if (node instanceof AST_SymbolVar - || node instanceof AST_SymbolConst) { + else if (node instanceof AST_SymbolVar) { defun.def_variable(node); if (defun !== scope) { node.mark_enclosed(options); @@ -268,7 +267,7 @@ AST_Scope.DEFMETHOD("init_scope_vars", function(parent_scope){ AST_Lambda.DEFMETHOD("init_scope_vars", function(){ AST_Scope.prototype.init_scope_vars.apply(this, arguments); this.uses_arguments = false; - this.def_variable(new AST_SymbolConst({ + this.def_variable(new AST_SymbolFunarg({ name: "arguments", start: this.start, end: this.end @@ -491,8 +490,6 @@ AST_Toplevel.DEFMETHOD("compute_char_frequency", function(options){ } else if (node instanceof AST_Var) base54.consider("var"); - else if (node instanceof AST_Const) - base54.consider("const"); else if (node instanceof AST_Lambda) base54.consider("function"); else if (node instanceof AST_For) diff --git a/test/compress/collapse_vars.js b/test/compress/collapse_vars.js index 0d578d7d..90d7ac93 100644 --- a/test/compress/collapse_vars.js +++ b/test/compress/collapse_vars.js @@ -583,8 +583,8 @@ collapse_vars_assignment: { return a = a; } function f1(c) { - const a = 3 / c; - const b = 1 - a; + var a = 3 / c; + var b = 1 - a; return b; } function f2(c) { @@ -724,10 +724,10 @@ collapse_vars_misc1: { return t; } function f1(x) { var y = 5 - x; return y; } - function f2(x) { const z = foo(), y = z / (5 - x); return y; } + function f2(x) { var z = foo(), y = z / (5 - x); return y; } function f3(x) { var z = foo(), y = (5 - x) / z; return y; } function f4(x) { var z = foo(), y = (5 - u) / z; return y; } - function f5(x) { const z = foo(), y = (5 - window.x) / z; return y; } + function f5(x) { var z = foo(), y = (5 - window.x) / z; return y; } function f6() { var b = window.a * window.z; return b && zap(); } function f7() { var b = window.a * window.z; return b + b; } function f8() { var b = window.a * window.z; var c = b + 5; return b + c; } @@ -744,7 +744,7 @@ collapse_vars_misc1: { function f2(x) { return foo() / (5 - x) } function f3(x) { return (5 - x) / foo() } function f4(x) { var z = foo(); return (5 - u) / z } - function f5(x) { const z = foo(); return (5 - window.x) / z } + function f5(x) { var z = foo(); return (5 - window.x) / z } function f6() { return window.a * window.z && zap() } function f7() { var b = window.a * window.z; return b + b } function f8() { var b = window.a * window.z; return b + (b + 5) } @@ -2186,49 +2186,3 @@ compound_assignment: { } expect_stdout: "4" } - -reassign_const_1: { - options = { - collapse_vars: true, - } - input: { - function f() { - const a = 1; - a = 2; - return a; - } - console.log(f()); - } - expect: { - function f() { - const a = 1; - a = 2; - return a; - } - console.log(f()); - } - expect_stdout: true -} - -reassign_const_2: { - options = { - collapse_vars: true, - } - input: { - function f() { - const a = 1; - ++a; - return a; - } - console.log(f()); - } - expect: { - function f() { - const a = 1; - ++a; - return a; - } - console.log(f()); - } - expect_stdout: true -} diff --git a/test/compress/const.js b/test/compress/const.js deleted file mode 100644 index a88d5946..00000000 --- a/test/compress/const.js +++ /dev/null @@ -1,166 +0,0 @@ -issue_1191: { - options = { - evaluate : true, - booleans : true, - comparisons : true, - dead_code : true, - conditionals : true, - side_effects : true, - unused : true, - hoist_funs : true, - if_return : true, - join_vars : true, - sequences : false, - collapse_vars : false, - reduce_vars : true, - } - input: { - function foo(rot) { - const rotTol = 5; - if (rot < -rotTol || rot > rotTol) - bar(); - baz(); - } - } - expect: { - function foo(rot) { - (rot < -5 || rot > 5) && bar(); - baz(); - } - } -} - -issue_1194: { - options = { - evaluate : true, - booleans : true, - comparisons : true, - dead_code : true, - conditionals : true, - side_effects : true, - unused : true, - hoist_funs : true, - if_return : true, - join_vars : true, - sequences : false, - collapse_vars : false, - reduce_vars : true, - } - input: { - function f1() {const a = "X"; return a + a;} - function f2() {const aa = "X"; return aa + aa;} - function f3() {const aaa = "X"; return aaa + aaa;} - } - expect: { - function f1(){return"XX"} - function f2(){return"XX"} - function f3(){return"XX"} - } -} - -issue_1396: { - options = { - evaluate : true, - booleans : true, - comparisons : true, - dead_code : true, - conditionals : true, - side_effects : true, - unused : true, - hoist_funs : true, - if_return : true, - join_vars : true, - sequences : false, - collapse_vars : false, - reduce_vars : true, - } - input: { - function foo(a) { - const VALUE = 1; - console.log(2 | VALUE); - console.log(VALUE + 1); - console.log(VALUE); - console.log(a & VALUE); - } - function bar() { - const s = "01234567890123456789"; - console.log(s + s + s + s + s); - - const CONSTANT = "abc"; - console.log(CONSTANT + CONSTANT + CONSTANT + CONSTANT + CONSTANT); - } - } - expect: { - function foo(a) { - console.log(3); - console.log(2); - console.log(1); - console.log(1 & a); - } - function bar() { - const s = "01234567890123456789"; - console.log(s + s + s + s + s); - - console.log("abcabcabcabcabc"); - } - } -} - -unused_regexp_literal: { - options = { - evaluate : true, - booleans : true, - comparisons : true, - dead_code : true, - conditionals : true, - side_effects : true, - unused : true, - hoist_funs : true, - if_return : true, - join_vars : true, - sequences : false, - collapse_vars : false, - } - input: { - function f(){ var a = /b/; } - } - expect: { - function f(){} - } -} - -regexp_literal_not_const: { - options = { - evaluate : true, - booleans : true, - comparisons : true, - dead_code : true, - conditionals : true, - side_effects : true, - unused : true, - hoist_funs : true, - if_return : true, - join_vars : true, - sequences : false, - collapse_vars : false, - reduce_vars : true, - } - input: { - (function(){ - var result; - const s = 'acdabcdeabbb'; - const REGEXP_LITERAL = /ab*/g; - while (result = REGEXP_LITERAL.exec(s)) { - console.log(result[0]); - } - })(); - } - expect: { - (function() { - var result; - const REGEXP_LITERAL = /ab*/g; - while (result = REGEXP_LITERAL.exec("acdabcdeabbb")) console.log(result[0]); - })(); - } - expect_stdout: true -} diff --git a/test/compress/dead-code.js b/test/compress/dead-code.js index bb72451c..31d0664a 100644 --- a/test/compress/dead-code.js +++ b/test/compress/dead-code.js @@ -90,131 +90,6 @@ dead_code_constant_boolean_should_warn_more: { expect_stdout: true } -dead_code_const_declaration: { - options = { - dead_code : true, - loops : true, - booleans : true, - conditionals : true, - evaluate : true, - reduce_vars : true, - }; - input: { - var unused; - const CONST_FOO = false; - if (CONST_FOO) { - console.log("unreachable"); - var moo; - function bar() {} - } - } - expect: { - var unused; - const CONST_FOO = !1; - var moo; - function bar() {} - } - expect_stdout: true -} - -dead_code_const_annotation: { - options = { - dead_code : true, - loops : true, - booleans : true, - conditionals : true, - evaluate : true, - reduce_vars : true, - toplevel : true, - }; - input: { - var unused; - /** @const */ var CONST_FOO_ANN = false; - if (CONST_FOO_ANN) { - console.log("unreachable"); - var moo; - function bar() {} - } - } - expect: { - var unused; - var CONST_FOO_ANN = !1; - var moo; - function bar() {} - } - expect_stdout: true -} - -dead_code_const_annotation_regex: { - options = { - dead_code : true, - loops : true, - booleans : true, - conditionals : true, - evaluate : true - }; - input: { - var unused; - // @constraint this shouldn't be a constant - var CONST_FOO_ANN = false; - if (CONST_FOO_ANN) { - console.log("reachable"); - } - } - expect: { - var unused; - var CONST_FOO_ANN = !1; - CONST_FOO_ANN && console.log('reachable'); - } - expect_stdout: true -} - -dead_code_const_annotation_complex_scope: { - options = { - dead_code : true, - loops : true, - booleans : true, - conditionals : true, - evaluate : true, - reduce_vars : true, - toplevel : true, - }; - input: { - var unused_var; - /** @const */ var test = 'test'; - // @const - var CONST_FOO_ANN = false; - var unused_var_2; - if (CONST_FOO_ANN) { - console.log("unreachable"); - var moo; - function bar() {} - } - if (test === 'test') { - var beef = 'good'; - /** @const */ var meat = 'beef'; - var pork = 'bad'; - if (meat === 'pork') { - console.log('also unreachable'); - } else if (pork === 'good') { - console.log('reached, not const'); - } - } - } - expect: { - var unused_var; - var test = 'test'; - var CONST_FOO_ANN = !1; - var unused_var_2; - var moo; - function bar() {} - var beef = 'good'; - var meat = 'beef'; - var pork = 'bad'; - } - expect_stdout: true -} - try_catch_finally: { options = { conditionals: true, diff --git a/test/compress/drop-unused.js b/test/compress/drop-unused.js index 96bd336c..2ef6f796 100644 --- a/test/compress/drop-unused.js +++ b/test/compress/drop-unused.js @@ -649,37 +649,6 @@ drop_value: { } } -const_assign: { - options = { - evaluate: true, - reduce_vars: true, - unused: true, - } - input: { - function f() { - const b = 2; - return 1 + b; - } - - function g() { - const b = 2; - b = 3; - return 1 + b; - } - } - expect: { - function f() { - return 3; - } - - function g() { - const b = 2; - b = 3; - return 1 + b; - } - } -} - issue_1539: { options = { cascade: true, @@ -816,10 +785,6 @@ issue_1709: { var x = 1; return x; }(), - function y() { - const y = 2; - return y; - }(), function z() { function z() {} return z; @@ -832,10 +797,6 @@ issue_1709: { var x = 1; return x; }(), - function() { - const y = 2; - return y; - }(), function() { function z() {} return z; @@ -1147,28 +1108,3 @@ var_catch_toplevel: { }(); } } - -reassign_const: { - options = { - cascade: true, - sequences: true, - side_effects: true, - unused: true, - } - input: { - function f() { - const a = 1; - a = 2; - return a; - } - console.log(f()); - } - expect: { - function f() { - const a = 1; - return a = 2, a; - } - console.log(f()); - } - expect_stdout: true -} diff --git a/test/compress/evaluate.js b/test/compress/evaluate.js index 585ee2b9..b8077564 100644 --- a/test/compress/evaluate.js +++ b/test/compress/evaluate.js @@ -645,16 +645,17 @@ call_args: { options = { evaluate: true, reduce_vars: true, + toplevel: true, } input: { - const a = 1; + var a = 1; console.log(a); +function(a) { return a; }(a); } expect: { - const a = 1; + var a = 1; console.log(1); +(1, 1); } @@ -666,17 +667,17 @@ call_args_drop_param: { evaluate: true, keep_fargs: false, reduce_vars: true, + toplevel: true, unused: true, } input: { - const a = 1; + var a = 1; console.log(a); +function(a) { return a; }(a, b); } expect: { - const a = 1; console.log(1); +(b, 1); } diff --git a/test/compress/global_defs.js b/test/compress/global_defs.js index f1ba8f32..bfd1d5f6 100644 --- a/test/compress/global_defs.js +++ b/test/compress/global_defs.js @@ -120,7 +120,7 @@ mixed: { properties: true, } input: { - const FOO = { BAR: 0 }; + var FOO = { BAR: 0 }; console.log(FOO.BAR); console.log(++CONFIG.DEBUG); console.log(++CONFIG.VALUE); @@ -130,7 +130,7 @@ mixed: { console.log(CONFIG); } expect: { - const FOO = { BAR: 0 }; + var FOO = { BAR: 0 }; console.log("moo"); console.log(++CONFIG.DEBUG); console.log(++CONFIG.VALUE); diff --git a/test/compress/issue-1041.js b/test/compress/issue-1041.js index cdbc22cc..cc351405 100644 --- a/test/compress/issue-1041.js +++ b/test/compress/issue-1041.js @@ -1,16 +1,3 @@ -const_declaration: { - options = { - evaluate: true - }; - - input: { - const goog = goog || {}; - } - expect: { - const goog = goog || {}; - } -} - const_pragma: { options = { evaluate: true, diff --git a/test/compress/issue-1588.js b/test/compress/issue-1588.js index 4e20a21d..187d9f6c 100644 --- a/test/compress/issue-1588.js +++ b/test/compress/issue-1588.js @@ -85,15 +85,3 @@ unsafe_undefined: { } expect_stdout: true } - -runtime_error: { - input: { - const a = 1; - console.log(a++); - } - expect: { - const a = 1; - console.log(a++); - } - expect_stdout: true -} diff --git a/test/compress/issue-208.js b/test/compress/issue-208.js index fb9861f6..faaf4139 100644 --- a/test/compress/issue-208.js +++ b/test/compress/issue-208.js @@ -38,7 +38,7 @@ mixed: { } } input: { - const ENV = 3; + var ENV = 3; var FOO = 4; f(ENV * 10); --FOO; @@ -49,7 +49,7 @@ mixed: { x = DEBUG; } expect: { - const ENV = 3; + var ENV = 3; var FOO = 4; f(10); --FOO; @@ -60,7 +60,7 @@ mixed: { x = 0; } expect_warnings: [ - 'WARN: global_defs ENV redefined [test/compress/issue-208.js:41,14]', + 'WARN: global_defs ENV redefined [test/compress/issue-208.js:41,12]', 'WARN: global_defs FOO redefined [test/compress/issue-208.js:42,12]', 'WARN: global_defs FOO redefined [test/compress/issue-208.js:44,10]', 'WARN: global_defs DEBUG redefined [test/compress/issue-208.js:45,8]', diff --git a/test/compress/loops.js b/test/compress/loops.js index 4d354bcf..89c7e7e9 100644 --- a/test/compress/loops.js +++ b/test/compress/loops.js @@ -146,50 +146,6 @@ parse_do_while_without_semicolon: { } } - -keep_collapse_const_in_own_block_scope: { - options = { - join_vars: true, - loops: true - } - input: { - var i=2; - const c=5; - while(i--) - console.log(i); - console.log(c); - } - expect: { - var i=2; - const c=5; - for(;i--;) - console.log(i); - console.log(c); - } - expect_stdout: true -} - -keep_collapse_const_in_own_block_scope_2: { - options = { - join_vars: true, - loops: true - } - input: { - const c=5; - var i=2; // Moves to loop, while it did not in previous test - while(i--) - console.log(i); - console.log(c); - } - expect: { - const c=5; - for(var i=2;i--;) - console.log(i); - console.log(c); - } - expect_stdout: true -} - evaluate: { options = { loops: true, diff --git a/test/compress/reduce_vars.js b/test/compress/reduce_vars.js index d3b3d425..a0433b5d 100644 --- a/test/compress/reduce_vars.js +++ b/test/compress/reduce_vars.js @@ -2190,10 +2190,11 @@ issue_1814_1: { options = { evaluate: true, reduce_vars: true, + toplevel: true, unused: true, } input: { - const a = 42; + var a = 42; !function() { var b = a; !function(a) { @@ -2202,7 +2203,6 @@ issue_1814_1: { }(); } expect: { - const a = 42; !function() { !function(a) { console.log(a++, 42); @@ -2216,10 +2216,11 @@ issue_1814_2: { options = { evaluate: true, reduce_vars: true, + toplevel: true, unused: true, } input: { - const a = "32"; + var a = "32"; !function() { var b = a + 1; !function(a) { @@ -2228,7 +2229,6 @@ issue_1814_2: { }(); } expect: { - const a = "32"; !function() { !function(a) { console.log(a++, "321"); diff --git a/test/compress/sequences.js b/test/compress/sequences.js index 9edf627e..10492565 100644 --- a/test/compress/sequences.js +++ b/test/compress/sequences.js @@ -710,27 +710,3 @@ issue_27: { })(jQuery); } } - -reassign_const: { - options = { - cascade: true, - sequences: true, - side_effects: true, - } - input: { - function f() { - const a = 1; - a++; - return a; - } - console.log(f()); - } - expect: { - function f() { - const a = 1; - return a++, a; - } - console.log(f()); - } - expect_stdout: true -} diff --git a/test/input/invalid/const.js b/test/input/invalid/const.js deleted file mode 100644 index 7a2bfd3d..00000000 --- a/test/input/invalid/const.js +++ /dev/null @@ -1,8 +0,0 @@ -function f() { - const a; -} - -function g() { - "use strict"; - const a; -} diff --git a/test/mocha/cli.js b/test/mocha/cli.js index 8cf53ab4..38f61f39 100644 --- a/test/mocha/cli.js +++ b/test/mocha/cli.js @@ -379,21 +379,6 @@ describe("bin/uglifyjs", function () { done(); }); }); - it("Should throw syntax error (const a)", function(done) { - var command = uglifyjscmd + ' test/input/invalid/const.js'; - - exec(command, function (err, stdout, stderr) { - assert.ok(err); - assert.strictEqual(stdout, ""); - assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [ - "Parse error at test/input/invalid/const.js:7,11", - " const a;", - " ^", - "ERROR: Missing initializer in const declaration" - ].join("\n")); - done(); - }); - }); it("Should throw syntax error (delete x)", function(done) { var command = uglifyjscmd + ' test/input/invalid/delete.js';