662 lines
23 KiB
JavaScript
662 lines
23 KiB
JavaScript
/***********************************************************************
|
|
|
|
A JavaScript tokenizer / parser / beautifier / compressor.
|
|
https://github.com/mishoo/UglifyJS2
|
|
|
|
-------------------------------- (C) ---------------------------------
|
|
|
|
Author: Mihai Bazon
|
|
<mihai.bazon@gmail.com>
|
|
http://mihai.bazon.net/blog
|
|
|
|
Distributed under the BSD license:
|
|
|
|
Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com>
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
* Redistributions of source code must retain the above
|
|
copyright notice, this list of conditions and the following
|
|
disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above
|
|
copyright notice, this list of conditions and the following
|
|
disclaimer in the documentation and/or other materials
|
|
provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
|
|
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
|
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
|
|
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
SUCH DAMAGE.
|
|
|
|
***********************************************************************/
|
|
|
|
"use strict";
|
|
|
|
function SymbolDef(scope, index, orig) {
|
|
this.name = orig.name;
|
|
this.orig = [ orig ];
|
|
this.scope = scope;
|
|
this.references = [];
|
|
this.global = false;
|
|
this.mangled_name = null;
|
|
this.undeclared = false;
|
|
this.index = index;
|
|
this.id = SymbolDef.next_id++;
|
|
};
|
|
|
|
SymbolDef.next_id = 1;
|
|
|
|
SymbolDef.prototype = {
|
|
unmangleable: function(options) {
|
|
if (!options) options = {};
|
|
|
|
return (this.global && !options.toplevel)
|
|
|| this.undeclared
|
|
|| (!options.eval && (this.scope.uses_eval || this.scope.uses_with))
|
|
|| (options.keep_fnames
|
|
&& (this.orig[0] instanceof AST_SymbolLambda
|
|
|| this.orig[0] instanceof AST_SymbolDefun));
|
|
},
|
|
mangle: function(options) {
|
|
var cache = options.cache && options.cache.props;
|
|
if (this.global && cache && cache.has(this.name)) {
|
|
this.mangled_name = cache.get(this.name);
|
|
}
|
|
else if (!this.mangled_name && !this.unmangleable(options)) {
|
|
var s = this.scope;
|
|
var sym = this.orig[0];
|
|
if (!options.screw_ie8 && sym instanceof AST_SymbolLambda)
|
|
s = s.parent_scope;
|
|
var def;
|
|
if (this.defun && (def = this.defun.variables.get(this.name))) {
|
|
this.mangled_name = def.mangled_name || def.name;
|
|
} else
|
|
this.mangled_name = s.next_mangled(options, this);
|
|
if (this.global && cache) {
|
|
cache.set(this.name, this.mangled_name);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
AST_Toplevel.DEFMETHOD("figure_out_scope", function(options){
|
|
options = defaults(options, {
|
|
cache: null,
|
|
screw_ie8: true,
|
|
});
|
|
|
|
// pass 1: setup scope chaining and handle definitions
|
|
var self = this;
|
|
var scope = self.parent_scope = null;
|
|
var labels = new Dictionary();
|
|
var defun = null;
|
|
var tw = new TreeWalker(function(node, descend){
|
|
if (node instanceof AST_Catch) {
|
|
var save_scope = scope;
|
|
scope = new AST_Scope(node);
|
|
scope.init_scope_vars(save_scope);
|
|
descend();
|
|
scope = save_scope;
|
|
return true;
|
|
}
|
|
if (node instanceof AST_Scope) {
|
|
node.init_scope_vars(scope);
|
|
var save_scope = scope;
|
|
var save_defun = defun;
|
|
var save_labels = labels;
|
|
defun = scope = node;
|
|
labels = new Dictionary();
|
|
descend();
|
|
scope = save_scope;
|
|
defun = save_defun;
|
|
labels = save_labels;
|
|
return true; // don't descend again in TreeWalker
|
|
}
|
|
if (node instanceof AST_LabeledStatement) {
|
|
var l = node.label;
|
|
if (labels.has(l.name)) {
|
|
throw new Error(string_template("Label {name} defined twice", l));
|
|
}
|
|
labels.set(l.name, l);
|
|
descend();
|
|
labels.del(l.name);
|
|
return true; // no descend again
|
|
}
|
|
if (node instanceof AST_With) {
|
|
for (var s = scope; s; s = s.parent_scope)
|
|
s.uses_with = true;
|
|
return;
|
|
}
|
|
if (node instanceof AST_Symbol) {
|
|
node.scope = scope;
|
|
}
|
|
if (node instanceof AST_Label) {
|
|
node.thedef = node;
|
|
node.references = [];
|
|
}
|
|
if (node instanceof AST_SymbolLambda) {
|
|
defun.def_function(node);
|
|
}
|
|
else if (node instanceof AST_SymbolDefun) {
|
|
// Careful here, the scope where this should be defined is
|
|
// the parent scope. The reason is that we enter a new
|
|
// scope when we encounter the AST_Defun node (which is
|
|
// instanceof AST_Scope) but we get to the symbol a bit
|
|
// later.
|
|
(node.scope = defun.parent_scope).def_function(node);
|
|
}
|
|
else if (node instanceof AST_SymbolVar
|
|
|| node instanceof AST_SymbolConst) {
|
|
defun.def_variable(node);
|
|
if (defun !== scope) {
|
|
node.mark_enclosed(options);
|
|
var def = scope.find_variable(node);
|
|
if (node.thedef !== def) {
|
|
node.thedef = def;
|
|
node.reference(options);
|
|
}
|
|
}
|
|
}
|
|
else if (node instanceof AST_SymbolCatch) {
|
|
scope.def_variable(node).defun = defun;
|
|
}
|
|
else if (node instanceof AST_LabelRef) {
|
|
var sym = labels.get(node.name);
|
|
if (!sym) throw new Error(string_template("Undefined label {name} [{line},{col}]", {
|
|
name: node.name,
|
|
line: node.start.line,
|
|
col: node.start.col
|
|
}));
|
|
node.thedef = sym;
|
|
}
|
|
});
|
|
self.walk(tw);
|
|
|
|
// pass 2: find back references and eval
|
|
var func = null;
|
|
var globals = self.globals = new Dictionary();
|
|
var tw = new TreeWalker(function(node, descend){
|
|
if (node instanceof AST_Lambda) {
|
|
var prev_func = func;
|
|
func = node;
|
|
descend();
|
|
func = prev_func;
|
|
return true;
|
|
}
|
|
if (node instanceof AST_LoopControl && node.label) {
|
|
node.label.thedef.references.push(node);
|
|
return true;
|
|
}
|
|
if (node instanceof AST_SymbolRef) {
|
|
var name = node.name;
|
|
if (name == "eval" && tw.parent() instanceof AST_Call) {
|
|
for (var s = node.scope; s && !s.uses_eval; s = s.parent_scope) {
|
|
s.uses_eval = true;
|
|
}
|
|
}
|
|
var sym = node.scope.find_variable(name);
|
|
if (node.scope instanceof AST_Lambda && name == "arguments") {
|
|
node.scope.uses_arguments = true;
|
|
}
|
|
if (!sym) {
|
|
sym = self.def_global(node);
|
|
}
|
|
node.thedef = sym;
|
|
node.reference(options);
|
|
return true;
|
|
}
|
|
});
|
|
self.walk(tw);
|
|
|
|
// pass 3: fix up any scoping issue with IE8
|
|
if (!options.screw_ie8) {
|
|
self.walk(new TreeWalker(function(node, descend) {
|
|
if (node instanceof AST_SymbolCatch) {
|
|
var name = node.name;
|
|
var refs = node.thedef.references;
|
|
var scope = node.thedef.defun;
|
|
var def = scope.find_variable(name) || self.globals.get(name) || scope.def_variable(node);
|
|
refs.forEach(function(ref) {
|
|
ref.thedef = def;
|
|
ref.reference(options);
|
|
});
|
|
node.thedef = def;
|
|
return true;
|
|
}
|
|
}));
|
|
}
|
|
|
|
if (options.cache) {
|
|
this.cname = options.cache.cname;
|
|
}
|
|
});
|
|
|
|
AST_Toplevel.DEFMETHOD("def_global", function(node){
|
|
var globals = this.globals, name = node.name;
|
|
if (globals.has(name)) {
|
|
return globals.get(name);
|
|
} else {
|
|
var g = new SymbolDef(this, globals.size(), node);
|
|
g.undeclared = true;
|
|
g.global = true;
|
|
globals.set(name, g);
|
|
return g;
|
|
}
|
|
});
|
|
|
|
AST_Scope.DEFMETHOD("init_scope_vars", function(parent_scope){
|
|
this.variables = new Dictionary(); // map name to AST_SymbolVar (variables defined in this scope; includes functions)
|
|
this.functions = new Dictionary(); // map name to AST_SymbolDefun (functions defined in this scope)
|
|
this.uses_with = false; // will be set to true if this or some nested scope uses the `with` statement
|
|
this.uses_eval = false; // will be set to true if this or nested scope uses the global `eval`
|
|
this.parent_scope = parent_scope; // the parent scope
|
|
this.enclosed = []; // a list of variables from this or outer scope(s) that are referenced from this or inner scopes
|
|
this.cname = -1; // the current index for mangling functions/variables
|
|
});
|
|
|
|
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_SymbolVar({
|
|
name: "arguments",
|
|
start: this.start,
|
|
end: this.end
|
|
}));
|
|
});
|
|
|
|
AST_Symbol.DEFMETHOD("mark_enclosed", function(options) {
|
|
var def = this.definition();
|
|
var s = this.scope;
|
|
while (s) {
|
|
push_uniq(s.enclosed, def);
|
|
if (options.keep_fnames) {
|
|
s.functions.each(function(d) {
|
|
push_uniq(def.scope.enclosed, d);
|
|
});
|
|
}
|
|
if (s === def.scope) break;
|
|
s = s.parent_scope;
|
|
}
|
|
});
|
|
|
|
AST_Symbol.DEFMETHOD("reference", function(options) {
|
|
this.definition().references.push(this);
|
|
this.mark_enclosed(options);
|
|
});
|
|
|
|
AST_Scope.DEFMETHOD("find_variable", function(name){
|
|
if (name instanceof AST_Symbol) name = name.name;
|
|
return this.variables.get(name)
|
|
|| (this.parent_scope && this.parent_scope.find_variable(name));
|
|
});
|
|
|
|
AST_Scope.DEFMETHOD("def_function", function(symbol){
|
|
this.functions.set(symbol.name, this.def_variable(symbol));
|
|
});
|
|
|
|
AST_Scope.DEFMETHOD("def_variable", function(symbol){
|
|
var def;
|
|
if (!this.variables.has(symbol.name)) {
|
|
def = new SymbolDef(this, this.variables.size(), symbol);
|
|
this.variables.set(symbol.name, def);
|
|
def.global = !this.parent_scope;
|
|
} else {
|
|
def = this.variables.get(symbol.name);
|
|
def.orig.push(symbol);
|
|
}
|
|
return symbol.thedef = def;
|
|
});
|
|
|
|
AST_Scope.DEFMETHOD("next_mangled", function(options){
|
|
var ext = this.enclosed;
|
|
out: while (true) {
|
|
var m = base54(++this.cname);
|
|
if (!is_identifier(m)) continue; // skip over "do"
|
|
|
|
// https://github.com/mishoo/UglifyJS2/issues/242 -- do not
|
|
// shadow a name excepted from mangling.
|
|
if (options.except.indexOf(m) >= 0) continue;
|
|
|
|
// we must ensure that the mangled name does not shadow a name
|
|
// from some parent scope that is referenced in this or in
|
|
// inner scopes.
|
|
for (var i = ext.length; --i >= 0;) {
|
|
var sym = ext[i];
|
|
var name = sym.mangled_name || (sym.unmangleable(options) && sym.name);
|
|
if (m == name) continue out;
|
|
}
|
|
return m;
|
|
}
|
|
});
|
|
|
|
AST_Function.DEFMETHOD("next_mangled", function(options, def){
|
|
// #179, #326
|
|
// in Safari strict mode, something like (function x(x){...}) is a syntax error;
|
|
// a function expression's argument cannot shadow the function expression's name
|
|
|
|
var tricky_def = def.orig[0] instanceof AST_SymbolFunarg && this.name && this.name.definition();
|
|
|
|
// the function's mangled_name is null when keep_fnames is true
|
|
var tricky_name = tricky_def ? tricky_def.mangled_name || tricky_def.name : null;
|
|
|
|
while (true) {
|
|
var name = AST_Lambda.prototype.next_mangled.call(this, options, def);
|
|
if (!tricky_name || tricky_name != name)
|
|
return name;
|
|
}
|
|
});
|
|
|
|
AST_Symbol.DEFMETHOD("unmangleable", function(options){
|
|
return this.definition().unmangleable(options);
|
|
});
|
|
|
|
// property accessors are not mangleable
|
|
AST_SymbolAccessor.DEFMETHOD("unmangleable", function(){
|
|
return true;
|
|
});
|
|
|
|
// labels are always mangleable
|
|
AST_Label.DEFMETHOD("unmangleable", function(){
|
|
return false;
|
|
});
|
|
|
|
AST_Symbol.DEFMETHOD("unreferenced", function(){
|
|
return this.definition().references.length == 0
|
|
&& !(this.scope.uses_eval || this.scope.uses_with);
|
|
});
|
|
|
|
AST_Symbol.DEFMETHOD("undeclared", function(){
|
|
return this.definition().undeclared;
|
|
});
|
|
|
|
AST_LabelRef.DEFMETHOD("undeclared", function(){
|
|
return false;
|
|
});
|
|
|
|
AST_Label.DEFMETHOD("undeclared", function(){
|
|
return false;
|
|
});
|
|
|
|
AST_Symbol.DEFMETHOD("definition", function(){
|
|
return this.thedef;
|
|
});
|
|
|
|
AST_Symbol.DEFMETHOD("global", function(){
|
|
return this.definition().global;
|
|
});
|
|
|
|
AST_Toplevel.DEFMETHOD("_default_mangler_options", function(options){
|
|
return defaults(options, {
|
|
eval : false,
|
|
except : [],
|
|
keep_fnames : false,
|
|
screw_ie8 : true,
|
|
sort : false, // Ignored. Flag retained for backwards compatibility.
|
|
toplevel : false,
|
|
});
|
|
});
|
|
|
|
AST_Toplevel.DEFMETHOD("mangle_names", function(options){
|
|
options = this._default_mangler_options(options);
|
|
|
|
// Never mangle arguments
|
|
options.except.push('arguments');
|
|
|
|
// We only need to mangle declaration nodes. Special logic wired
|
|
// into the code generator will display the mangled name if it's
|
|
// present (and for AST_SymbolRef-s it'll use the mangled name of
|
|
// the AST_SymbolDeclaration that it points to).
|
|
var lname = -1;
|
|
var to_mangle = [];
|
|
|
|
if (options.cache) {
|
|
this.globals.each(function(symbol){
|
|
if (options.except.indexOf(symbol.name) < 0) {
|
|
to_mangle.push(symbol);
|
|
}
|
|
});
|
|
}
|
|
|
|
var tw = new TreeWalker(function(node, descend){
|
|
if (node instanceof AST_LabeledStatement) {
|
|
// lname is incremented when we get to the AST_Label
|
|
var save_nesting = lname;
|
|
descend();
|
|
lname = save_nesting;
|
|
return true; // don't descend again in TreeWalker
|
|
}
|
|
if (node instanceof AST_Scope) {
|
|
var p = tw.parent(), a = [];
|
|
node.variables.each(function(symbol){
|
|
if (options.except.indexOf(symbol.name) < 0) {
|
|
a.push(symbol);
|
|
}
|
|
});
|
|
to_mangle.push.apply(to_mangle, a);
|
|
return;
|
|
}
|
|
if (node instanceof AST_Label) {
|
|
var name;
|
|
do name = base54(++lname); while (!is_identifier(name));
|
|
node.mangled_name = name;
|
|
return true;
|
|
}
|
|
if (options.screw_ie8 && node instanceof AST_SymbolCatch) {
|
|
to_mangle.push(node.definition());
|
|
return;
|
|
}
|
|
});
|
|
this.walk(tw);
|
|
to_mangle.forEach(function(def){ def.mangle(options) });
|
|
|
|
if (options.cache) {
|
|
options.cache.cname = this.cname;
|
|
}
|
|
});
|
|
|
|
AST_Toplevel.DEFMETHOD("compute_char_frequency", function(options){
|
|
options = this._default_mangler_options(options);
|
|
var tw = new TreeWalker(function(node){
|
|
if (node instanceof AST_Constant)
|
|
base54.consider(node.print_to_string());
|
|
else if (node instanceof AST_Return)
|
|
base54.consider("return");
|
|
else if (node instanceof AST_Throw)
|
|
base54.consider("throw");
|
|
else if (node instanceof AST_Continue)
|
|
base54.consider("continue");
|
|
else if (node instanceof AST_Break)
|
|
base54.consider("break");
|
|
else if (node instanceof AST_Debugger)
|
|
base54.consider("debugger");
|
|
else if (node instanceof AST_Directive)
|
|
base54.consider(node.value);
|
|
else if (node instanceof AST_While)
|
|
base54.consider("while");
|
|
else if (node instanceof AST_Do)
|
|
base54.consider("do while");
|
|
else if (node instanceof AST_If) {
|
|
base54.consider("if");
|
|
if (node.alternative) base54.consider("else");
|
|
}
|
|
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)
|
|
base54.consider("for");
|
|
else if (node instanceof AST_ForIn)
|
|
base54.consider("for in");
|
|
else if (node instanceof AST_Switch)
|
|
base54.consider("switch");
|
|
else if (node instanceof AST_Case)
|
|
base54.consider("case");
|
|
else if (node instanceof AST_Default)
|
|
base54.consider("default");
|
|
else if (node instanceof AST_With)
|
|
base54.consider("with");
|
|
else if (node instanceof AST_ObjectSetter)
|
|
base54.consider("set" + node.key);
|
|
else if (node instanceof AST_ObjectGetter)
|
|
base54.consider("get" + node.key);
|
|
else if (node instanceof AST_ObjectKeyVal)
|
|
base54.consider(node.key);
|
|
else if (node instanceof AST_New)
|
|
base54.consider("new");
|
|
else if (node instanceof AST_This)
|
|
base54.consider("this");
|
|
else if (node instanceof AST_Try)
|
|
base54.consider("try");
|
|
else if (node instanceof AST_Catch)
|
|
base54.consider("catch");
|
|
else if (node instanceof AST_Finally)
|
|
base54.consider("finally");
|
|
else if (node instanceof AST_Symbol && node.unmangleable(options))
|
|
base54.consider(node.name);
|
|
else if (node instanceof AST_Unary || node instanceof AST_Binary)
|
|
base54.consider(node.operator);
|
|
else if (node instanceof AST_Dot)
|
|
base54.consider(node.property);
|
|
});
|
|
this.walk(tw);
|
|
base54.sort();
|
|
});
|
|
|
|
var base54 = (function() {
|
|
var string = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_0123456789";
|
|
var chars, frequency;
|
|
function reset() {
|
|
frequency = Object.create(null);
|
|
chars = string.split("").map(function(ch){ return ch.charCodeAt(0) });
|
|
chars.forEach(function(ch){ frequency[ch] = 0 });
|
|
}
|
|
base54.consider = function(str){
|
|
for (var i = str.length; --i >= 0;) {
|
|
var code = str.charCodeAt(i);
|
|
if (code in frequency) ++frequency[code];
|
|
}
|
|
};
|
|
base54.sort = function() {
|
|
chars = mergeSort(chars, function(a, b){
|
|
if (is_digit(a) && !is_digit(b)) return 1;
|
|
if (is_digit(b) && !is_digit(a)) return -1;
|
|
return frequency[b] - frequency[a];
|
|
});
|
|
};
|
|
base54.reset = reset;
|
|
reset();
|
|
base54.get = function(){ return chars };
|
|
base54.freq = function(){ return frequency };
|
|
function base54(num) {
|
|
var ret = "", base = 54;
|
|
num++;
|
|
do {
|
|
num--;
|
|
ret += String.fromCharCode(chars[num % base]);
|
|
num = Math.floor(num / base);
|
|
base = 64;
|
|
} while (num > 0);
|
|
return ret;
|
|
};
|
|
return base54;
|
|
})();
|
|
|
|
AST_Toplevel.DEFMETHOD("scope_warnings", function(options){
|
|
options = defaults(options, {
|
|
assign_to_global : true,
|
|
eval : true,
|
|
func_arguments : true,
|
|
nested_defuns : true,
|
|
undeclared : false, // this makes a lot of noise
|
|
unreferenced : true,
|
|
});
|
|
var tw = new TreeWalker(function(node){
|
|
if (options.undeclared
|
|
&& node instanceof AST_SymbolRef
|
|
&& node.undeclared())
|
|
{
|
|
// XXX: this also warns about JS standard names,
|
|
// i.e. Object, Array, parseInt etc. Should add a list of
|
|
// exceptions.
|
|
AST_Node.warn("Undeclared symbol: {name} [{file}:{line},{col}]", {
|
|
name: node.name,
|
|
file: node.start.file,
|
|
line: node.start.line,
|
|
col: node.start.col
|
|
});
|
|
}
|
|
if (options.assign_to_global)
|
|
{
|
|
var sym = null;
|
|
if (node instanceof AST_Assign && node.left instanceof AST_SymbolRef)
|
|
sym = node.left;
|
|
else if (node instanceof AST_ForIn && node.init instanceof AST_SymbolRef)
|
|
sym = node.init;
|
|
if (sym
|
|
&& (sym.undeclared()
|
|
|| (sym.global() && sym.scope !== sym.definition().scope))) {
|
|
AST_Node.warn("{msg}: {name} [{file}:{line},{col}]", {
|
|
msg: sym.undeclared() ? "Accidental global?" : "Assignment to global",
|
|
name: sym.name,
|
|
file: sym.start.file,
|
|
line: sym.start.line,
|
|
col: sym.start.col
|
|
});
|
|
}
|
|
}
|
|
if (options.eval
|
|
&& node instanceof AST_SymbolRef
|
|
&& node.undeclared()
|
|
&& node.name == "eval") {
|
|
AST_Node.warn("Eval is used [{file}:{line},{col}]", node.start);
|
|
}
|
|
if (options.unreferenced
|
|
&& (node instanceof AST_SymbolDeclaration || node instanceof AST_Label)
|
|
&& !(node instanceof AST_SymbolCatch)
|
|
&& node.unreferenced()) {
|
|
AST_Node.warn("{type} {name} is declared but not referenced [{file}:{line},{col}]", {
|
|
type: node instanceof AST_Label ? "Label" : "Symbol",
|
|
name: node.name,
|
|
file: node.start.file,
|
|
line: node.start.line,
|
|
col: node.start.col
|
|
});
|
|
}
|
|
if (options.func_arguments
|
|
&& node instanceof AST_Lambda
|
|
&& node.uses_arguments) {
|
|
AST_Node.warn("arguments used in function {name} [{file}:{line},{col}]", {
|
|
name: node.name ? node.name.name : "anonymous",
|
|
file: node.start.file,
|
|
line: node.start.line,
|
|
col: node.start.col
|
|
});
|
|
}
|
|
if (options.nested_defuns
|
|
&& node instanceof AST_Defun
|
|
&& !(tw.parent() instanceof AST_Scope)) {
|
|
AST_Node.warn("Function {name} declared in nested statement \"{type}\" [{file}:{line},{col}]", {
|
|
name: node.name.name,
|
|
type: tw.parent().TYPE,
|
|
file: node.start.file,
|
|
line: node.start.line,
|
|
col: node.start.col
|
|
});
|
|
}
|
|
});
|
|
this.walk(tw);
|
|
});
|