This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1225 lines
41 KiB
1225 lines
41 KiB
/*********************************************************************** |
|
|
|
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 DEFNODE(type, props, methods, base) { |
|
if (arguments.length < 4) base = AST_Node; |
|
if (!props) props = []; |
|
else props = props.split(/\s+/); |
|
var self_props = props; |
|
if (base && base.PROPS) |
|
props = props.concat(base.PROPS); |
|
var code = "return function AST_" + type + "(props){ if (props) { "; |
|
for (var i = props.length; --i >= 0;) { |
|
code += "this." + props[i] + " = props." + props[i] + ";"; |
|
} |
|
var proto = base && new base; |
|
if (proto && proto.initialize || (methods && methods.initialize)) |
|
code += "this.initialize();"; |
|
code += "}}"; |
|
var ctor = new Function(code)(); |
|
if (proto) { |
|
ctor.prototype = proto; |
|
ctor.BASE = base; |
|
} |
|
if (base) base.SUBCLASSES.push(ctor); |
|
ctor.prototype.CTOR = ctor; |
|
ctor.PROPS = props || null; |
|
ctor.SELF_PROPS = self_props; |
|
ctor.SUBCLASSES = []; |
|
if (type) { |
|
ctor.prototype.TYPE = ctor.TYPE = type; |
|
} |
|
if (methods) for (i in methods) if (HOP(methods, i)) { |
|
if (/^\$/.test(i)) { |
|
ctor[i.substr(1)] = methods[i]; |
|
} else { |
|
ctor.prototype[i] = methods[i]; |
|
} |
|
} |
|
ctor.DEFMETHOD = function(name, method) { |
|
this.prototype[name] = method; |
|
}; |
|
if (typeof exports !== "undefined") { |
|
exports["AST_" + type] = ctor; |
|
} |
|
return ctor; |
|
}; |
|
|
|
var AST_Token = DEFNODE("Token", "type value line col pos endline endcol endpos nlb comments_before comments_after file raw", { |
|
}, null); |
|
|
|
var AST_Node = DEFNODE("Node", "start end", { |
|
_clone: function(deep) { |
|
if (deep) { |
|
var self = this.clone(); |
|
return self.transform(new TreeTransformer(function(node) { |
|
if (node !== self) { |
|
return node.clone(true); |
|
} |
|
})); |
|
} |
|
return new this.CTOR(this); |
|
}, |
|
clone: function(deep) { |
|
return this._clone(deep); |
|
}, |
|
$documentation: "Base class of all AST nodes", |
|
$propdoc: { |
|
start: "[AST_Token] The first token of this node", |
|
end: "[AST_Token] The last token of this node" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this); |
|
}, |
|
walk: function(visitor) { |
|
return this._walk(visitor); // not sure the indirection will be any help |
|
} |
|
}, null); |
|
|
|
AST_Node.warn_function = null; |
|
AST_Node.warn = function(txt, props) { |
|
if (AST_Node.warn_function) |
|
AST_Node.warn_function(string_template(txt, props)); |
|
}; |
|
|
|
/* -----[ statements ]----- */ |
|
|
|
var AST_Statement = DEFNODE("Statement", null, { |
|
$documentation: "Base class of all statements", |
|
}); |
|
|
|
var AST_Debugger = DEFNODE("Debugger", null, { |
|
$documentation: "Represents a debugger statement", |
|
}, AST_Statement); |
|
|
|
var AST_Directive = DEFNODE("Directive", "value quote", { |
|
$documentation: "Represents a directive, like \"use strict\";", |
|
$propdoc: { |
|
value: "[string] The value of this directive as a plain string (it's not an AST_String!)", |
|
quote: "[string] the original quote character" |
|
}, |
|
}, AST_Statement); |
|
|
|
var AST_SimpleStatement = DEFNODE("SimpleStatement", "body", { |
|
$documentation: "A statement consisting of an expression, i.e. a = 1 + 2", |
|
$propdoc: { |
|
body: "[AST_Node] an expression node (should not be instanceof AST_Statement)" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.body._walk(visitor); |
|
}); |
|
} |
|
}, AST_Statement); |
|
|
|
function walk_body(node, visitor) { |
|
var body = node.body; |
|
if (body instanceof AST_Node) { |
|
body._walk(visitor); |
|
} |
|
else for (var i = 0, len = body.length; i < len; i++) { |
|
body[i]._walk(visitor); |
|
} |
|
}; |
|
|
|
var AST_Block = DEFNODE("Block", "body", { |
|
$documentation: "A body of statements (usually bracketed)", |
|
$propdoc: { |
|
body: "[AST_Statement*] an array of statements" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
walk_body(this, visitor); |
|
}); |
|
} |
|
}, AST_Statement); |
|
|
|
var AST_BlockStatement = DEFNODE("BlockStatement", null, { |
|
$documentation: "A block statement", |
|
}, AST_Block); |
|
|
|
var AST_EmptyStatement = DEFNODE("EmptyStatement", null, { |
|
$documentation: "The empty statement (empty block or simply a semicolon)" |
|
}, AST_Statement); |
|
|
|
var AST_StatementWithBody = DEFNODE("StatementWithBody", "body", { |
|
$documentation: "Base class for all statements that contain one nested body: `For`, `ForIn`, `Do`, `While`, `With`", |
|
$propdoc: { |
|
body: "[AST_Statement] the body; this should always be present, even if it's an AST_EmptyStatement" |
|
} |
|
}, AST_Statement); |
|
|
|
var AST_LabeledStatement = DEFNODE("LabeledStatement", "label", { |
|
$documentation: "Statement with a label", |
|
$propdoc: { |
|
label: "[AST_Label] a label definition" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.label._walk(visitor); |
|
this.body._walk(visitor); |
|
}); |
|
}, |
|
clone: function(deep) { |
|
var node = this._clone(deep); |
|
if (deep) { |
|
var label = node.label; |
|
var def = this.label; |
|
node.walk(new TreeWalker(function(node) { |
|
if (node instanceof AST_LoopControl |
|
&& node.label && node.label.thedef === def) { |
|
node.label.thedef = label; |
|
label.references.push(node); |
|
} |
|
})); |
|
} |
|
return node; |
|
} |
|
}, AST_StatementWithBody); |
|
|
|
var AST_IterationStatement = DEFNODE("IterationStatement", null, { |
|
$documentation: "Internal class. All loops inherit from it." |
|
}, AST_StatementWithBody); |
|
|
|
var AST_DWLoop = DEFNODE("DWLoop", "condition", { |
|
$documentation: "Base class for do/while statements", |
|
$propdoc: { |
|
condition: "[AST_Node] the loop condition. Should not be instanceof AST_Statement" |
|
} |
|
}, AST_IterationStatement); |
|
|
|
var AST_Do = DEFNODE("Do", null, { |
|
$documentation: "A `do` statement", |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.body._walk(visitor); |
|
this.condition._walk(visitor); |
|
}); |
|
} |
|
}, AST_DWLoop); |
|
|
|
var AST_While = DEFNODE("While", null, { |
|
$documentation: "A `while` statement", |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.condition._walk(visitor); |
|
this.body._walk(visitor); |
|
}); |
|
} |
|
}, AST_DWLoop); |
|
|
|
var AST_For = DEFNODE("For", "init condition step", { |
|
$documentation: "A `for` statement", |
|
$propdoc: { |
|
init: "[AST_Node?] the `for` initialization code, or null if empty", |
|
condition: "[AST_Node?] the `for` termination clause, or null if empty", |
|
step: "[AST_Node?] the `for` update clause, or null if empty" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
if (this.init) this.init._walk(visitor); |
|
if (this.condition) this.condition._walk(visitor); |
|
if (this.step) this.step._walk(visitor); |
|
this.body._walk(visitor); |
|
}); |
|
} |
|
}, AST_IterationStatement); |
|
|
|
var AST_ForIn = DEFNODE("ForIn", "init object", { |
|
$documentation: "A `for ... in` statement", |
|
$propdoc: { |
|
init: "[AST_Node] the `for/in` initialization code", |
|
object: "[AST_Node] the object that we're looping through" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.init._walk(visitor); |
|
this.object._walk(visitor); |
|
this.body._walk(visitor); |
|
}); |
|
} |
|
}, AST_IterationStatement); |
|
|
|
var AST_ForOf = DEFNODE("ForOf", null, { |
|
$documentation: "A `for ... of` statement", |
|
}, AST_ForIn); |
|
|
|
var AST_With = DEFNODE("With", "expression", { |
|
$documentation: "A `with` statement", |
|
$propdoc: { |
|
expression: "[AST_Node] the `with` expression" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.expression._walk(visitor); |
|
this.body._walk(visitor); |
|
}); |
|
} |
|
}, AST_StatementWithBody); |
|
|
|
/* -----[ scope and functions ]----- */ |
|
|
|
var AST_Scope = DEFNODE("Scope", "variables functions uses_with uses_eval parent_scope enclosed cname", { |
|
$documentation: "Base class for all statements introducing a lexical scope", |
|
$propdoc: { |
|
variables: "[Object/S] a map of name -> SymbolDef for all variables/functions defined in this scope", |
|
functions: "[Object/S] like `variables`, but only lists function declarations", |
|
uses_with: "[boolean/S] tells whether this scope uses the `with` statement", |
|
uses_eval: "[boolean/S] tells whether this scope contains a direct call to the global `eval`", |
|
parent_scope: "[AST_Scope?/S] link to the parent scope", |
|
enclosed: "[SymbolDef*/S] a list of all symbol definitions that are accessed from this scope or any subscopes", |
|
cname: "[integer/S] current index for mangling variables (used internally by the mangler)", |
|
}, |
|
get_defun_scope: function() { |
|
var self = this; |
|
while (self.is_block_scope()) { |
|
self = self.parent_scope; |
|
} |
|
return self; |
|
}, |
|
clone: function(deep) { |
|
var node = this._clone(deep); |
|
if (this.variables) node.variables = this.variables.clone(); |
|
if (this.functions) node.functions = this.functions.clone(); |
|
if (this.enclosed) node.enclosed = this.enclosed.slice(); |
|
return node; |
|
} |
|
}, AST_Block); |
|
|
|
var AST_Toplevel = DEFNODE("Toplevel", "globals", { |
|
$documentation: "The toplevel scope", |
|
$propdoc: { |
|
globals: "[Object/S] a map of name -> SymbolDef for all undeclared names", |
|
}, |
|
wrap_commonjs: function(name) { |
|
var body = this.body; |
|
var wrapped_tl = "(function(exports){'$ORIG';})(typeof " + name + "=='undefined'?(" + name + "={}):" + name + ");"; |
|
wrapped_tl = parse(wrapped_tl); |
|
wrapped_tl = wrapped_tl.transform(new TreeTransformer(function before(node){ |
|
if (node instanceof AST_Directive && node.value == "$ORIG") { |
|
return MAP.splice(body); |
|
} |
|
})); |
|
return wrapped_tl; |
|
} |
|
}, AST_Scope); |
|
|
|
var AST_Expansion = DEFNODE("Expansion", "expression", { |
|
$documentation: "An expandible argument, such as ...rest, a splat, such as [1,2,...all], or an expansion in a variable declaration, such as var [first, ...rest] = list", |
|
$propdoc: { |
|
expression: "[AST_Node] the thing to be expanded" |
|
}, |
|
_walk: function(visitor) { |
|
var self = this; |
|
return visitor._visit(this, function(){ |
|
self.expression.walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_Lambda = DEFNODE("Lambda", "name argnames uses_arguments is_generator async", { |
|
$documentation: "Base class for functions", |
|
$propdoc: { |
|
name: "[AST_SymbolDeclaration?] the name of this function", |
|
argnames: "[AST_SymbolFunarg|AST_Destructuring|AST_Expansion|AST_DefaultAssign*] array of function arguments, destructurings, or expanding arguments", |
|
uses_arguments: "[boolean/S] tells whether this function accesses the arguments array", |
|
is_generator: "[boolean] is this a generator method", |
|
async: "[boolean] is this method async", |
|
}, |
|
args_as_names: function () { |
|
var out = []; |
|
for (var i = 0; i < this.argnames.length; i++) { |
|
if (this.argnames[i] instanceof AST_Destructuring) { |
|
out = out.concat(this.argnames[i].all_symbols()); |
|
} else { |
|
out.push(this.argnames[i]); |
|
} |
|
} |
|
return out; |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
if (this.name) this.name._walk(visitor); |
|
var argnames = this.argnames; |
|
for (var i = 0, len = argnames.length; i < len; i++) { |
|
argnames[i]._walk(visitor); |
|
} |
|
walk_body(this, visitor); |
|
}); |
|
} |
|
}, AST_Scope); |
|
|
|
var AST_Accessor = DEFNODE("Accessor", null, { |
|
$documentation: "A setter/getter function. The `name` property is always null." |
|
}, AST_Lambda); |
|
|
|
var AST_Function = DEFNODE("Function", "inlined", { |
|
$documentation: "A function expression" |
|
}, AST_Lambda); |
|
|
|
var AST_Arrow = DEFNODE("Arrow", "inlined", { |
|
$documentation: "An ES6 Arrow function ((a) => b)" |
|
}, AST_Lambda); |
|
|
|
var AST_Defun = DEFNODE("Defun", "inlined", { |
|
$documentation: "A function definition" |
|
}, AST_Lambda); |
|
|
|
/* -----[ DESTRUCTURING ]----- */ |
|
var AST_Destructuring = DEFNODE("Destructuring", "names is_array", { |
|
$documentation: "A destructuring of several names. Used in destructuring assignment and with destructuring function argument names", |
|
$propdoc: { |
|
"names": "[AST_Node*] Array of properties or elements", |
|
"is_array": "[Boolean] Whether the destructuring represents an object or array" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.names.forEach(function(name){ |
|
name._walk(visitor); |
|
}); |
|
}); |
|
}, |
|
all_symbols: function() { |
|
var out = []; |
|
this.walk(new TreeWalker(function (node) { |
|
if (node instanceof AST_Symbol) { |
|
out.push(node); |
|
} |
|
if (node instanceof AST_Expansion) { |
|
out.push(node.expression); |
|
} |
|
})); |
|
return out; |
|
} |
|
}); |
|
|
|
var AST_PrefixedTemplateString = DEFNODE("PrefixedTemplateString", "template_string prefix", { |
|
$documentation: "A templatestring with a prefix, such as String.raw`foobarbaz`", |
|
$propdoc: { |
|
template_string: "[AST_TemplateString] The template string", |
|
prefix: "[AST_SymbolRef|AST_PropAccess] The prefix, which can be a symbol such as `foo` or a dotted expression such as `String.raw`." |
|
}, |
|
_walk: function(visitor) { |
|
this.prefix._walk(visitor); |
|
this.template_string._walk(visitor); |
|
} |
|
}) |
|
|
|
var AST_TemplateString = DEFNODE("TemplateString", "segments", { |
|
$documentation: "A template string literal", |
|
$propdoc: { |
|
segments: "[AST_Node*] One or more segments, starting with AST_TemplateSegment. AST_Node may follow AST_TemplateSegment, but each AST_Node must be followed by AST_TemplateSegment." |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.segments.forEach(function(seg){ |
|
seg._walk(visitor); |
|
}); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_TemplateSegment = DEFNODE("TemplateSegment", "value raw", { |
|
$documentation: "A segment of a template string literal", |
|
$propdoc: { |
|
value: "Content of the segment", |
|
raw: "Raw content of the segment" |
|
} |
|
}); |
|
|
|
/* -----[ JUMPS ]----- */ |
|
|
|
var AST_Jump = DEFNODE("Jump", null, { |
|
$documentation: "Base class for “jumps” (for now that's `return`, `throw`, `break` and `continue`)" |
|
}, AST_Statement); |
|
|
|
var AST_Exit = DEFNODE("Exit", "value", { |
|
$documentation: "Base class for “exits” (`return` and `throw`)", |
|
$propdoc: { |
|
value: "[AST_Node?] the value returned or thrown by this statement; could be null for AST_Return" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, this.value && function(){ |
|
this.value._walk(visitor); |
|
}); |
|
} |
|
}, AST_Jump); |
|
|
|
var AST_Return = DEFNODE("Return", null, { |
|
$documentation: "A `return` statement" |
|
}, AST_Exit); |
|
|
|
var AST_Throw = DEFNODE("Throw", null, { |
|
$documentation: "A `throw` statement" |
|
}, AST_Exit); |
|
|
|
var AST_LoopControl = DEFNODE("LoopControl", "label", { |
|
$documentation: "Base class for loop control statements (`break` and `continue`)", |
|
$propdoc: { |
|
label: "[AST_LabelRef?] the label, or null if none", |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, this.label && function(){ |
|
this.label._walk(visitor); |
|
}); |
|
} |
|
}, AST_Jump); |
|
|
|
var AST_Break = DEFNODE("Break", null, { |
|
$documentation: "A `break` statement" |
|
}, AST_LoopControl); |
|
|
|
var AST_Continue = DEFNODE("Continue", null, { |
|
$documentation: "A `continue` statement" |
|
}, AST_LoopControl); |
|
|
|
/* -----[ IF ]----- */ |
|
|
|
var AST_If = DEFNODE("If", "condition alternative", { |
|
$documentation: "A `if` statement", |
|
$propdoc: { |
|
condition: "[AST_Node] the `if` condition", |
|
alternative: "[AST_Statement?] the `else` part, or null if not present" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.condition._walk(visitor); |
|
this.body._walk(visitor); |
|
if (this.alternative) this.alternative._walk(visitor); |
|
}); |
|
} |
|
}, AST_StatementWithBody); |
|
|
|
/* -----[ SWITCH ]----- */ |
|
|
|
var AST_Switch = DEFNODE("Switch", "expression", { |
|
$documentation: "A `switch` statement", |
|
$propdoc: { |
|
expression: "[AST_Node] the `switch` “discriminant”" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.expression._walk(visitor); |
|
walk_body(this, visitor); |
|
}); |
|
} |
|
}, AST_Block); |
|
|
|
var AST_SwitchBranch = DEFNODE("SwitchBranch", null, { |
|
$documentation: "Base class for `switch` branches", |
|
}, AST_Block); |
|
|
|
var AST_Default = DEFNODE("Default", null, { |
|
$documentation: "A `default` switch branch", |
|
}, AST_SwitchBranch); |
|
|
|
var AST_Case = DEFNODE("Case", "expression", { |
|
$documentation: "A `case` switch branch", |
|
$propdoc: { |
|
expression: "[AST_Node] the `case` expression" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.expression._walk(visitor); |
|
walk_body(this, visitor); |
|
}); |
|
} |
|
}, AST_SwitchBranch); |
|
|
|
/* -----[ EXCEPTIONS ]----- */ |
|
|
|
var AST_Try = DEFNODE("Try", "bcatch bfinally", { |
|
$documentation: "A `try` statement", |
|
$propdoc: { |
|
bcatch: "[AST_Catch?] the catch block, or null if not present", |
|
bfinally: "[AST_Finally?] the finally block, or null if not present" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
walk_body(this, visitor); |
|
if (this.bcatch) this.bcatch._walk(visitor); |
|
if (this.bfinally) this.bfinally._walk(visitor); |
|
}); |
|
} |
|
}, AST_Block); |
|
|
|
var AST_Catch = DEFNODE("Catch", "argname", { |
|
$documentation: "A `catch` node; only makes sense as part of a `try` statement", |
|
$propdoc: { |
|
argname: "[AST_SymbolCatch|AST_Destructuring|AST_Expansion|AST_DefaultAssign] symbol for the exception" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.argname._walk(visitor); |
|
walk_body(this, visitor); |
|
}); |
|
} |
|
}, AST_Block); |
|
|
|
var AST_Finally = DEFNODE("Finally", null, { |
|
$documentation: "A `finally` node; only makes sense as part of a `try` statement" |
|
}, AST_Block); |
|
|
|
/* -----[ VAR/CONST ]----- */ |
|
|
|
var AST_Definitions = DEFNODE("Definitions", "definitions", { |
|
$documentation: "Base class for `var` or `const` nodes (variable declarations/initializations)", |
|
$propdoc: { |
|
definitions: "[AST_VarDef*] array of variable definitions" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
var definitions = this.definitions; |
|
for (var i = 0, len = definitions.length; i < len; i++) { |
|
definitions[i]._walk(visitor); |
|
} |
|
}); |
|
} |
|
}, AST_Statement); |
|
|
|
var AST_Var = DEFNODE("Var", null, { |
|
$documentation: "A `var` statement" |
|
}, AST_Definitions); |
|
|
|
var AST_Let = DEFNODE("Let", null, { |
|
$documentation: "A `let` statement" |
|
}, AST_Definitions); |
|
|
|
var AST_Const = DEFNODE("Const", null, { |
|
$documentation: "A `const` statement" |
|
}, AST_Definitions); |
|
|
|
var AST_NameMapping = DEFNODE("NameMapping", "foreign_name name", { |
|
$documentation: "The part of the export/import statement that declare names from a module.", |
|
$propdoc: { |
|
foreign_name: "[AST_SymbolExportForeign|AST_SymbolImportForeign] The name being exported/imported (as specified in the module)", |
|
name: "[AST_SymbolExport|AST_SymbolImport] The name as it is visible to this module." |
|
}, |
|
_walk: function (visitor) { |
|
return visitor._visit(this, function() { |
|
this.foreign_name._walk(visitor); |
|
this.name._walk(visitor); |
|
}); |
|
} |
|
}) |
|
|
|
var AST_Import = DEFNODE("Import", "imported_name imported_names module_name", { |
|
$documentation: "An `import` statement", |
|
$propdoc: { |
|
imported_name: "[AST_SymbolImport] The name of the variable holding the module's default export.", |
|
imported_names: "[AST_NameMapping*] The names of non-default imported variables", |
|
module_name: "[AST_String] String literal describing where this module came from", |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function() { |
|
if (this.imported_name) { |
|
this.imported_name._walk(visitor); |
|
} |
|
if (this.imported_names) { |
|
this.imported_names.forEach(function(name_import) { |
|
name_import._walk(visitor); |
|
}); |
|
} |
|
this.module_name._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_Export = DEFNODE("Export", "exported_definition exported_value is_default exported_names module_name", { |
|
$documentation: "An `export` statement", |
|
$propdoc: { |
|
exported_definition: "[AST_Defun|AST_Definitions|AST_DefClass?] An exported definition", |
|
exported_value: "[AST_Node?] An exported value", |
|
exported_names: "[AST_NameMapping*?] List of exported names", |
|
module_name: "[AST_String?] Name of the file to load exports from", |
|
is_default: "[Boolean] Whether this is the default exported value of this module" |
|
}, |
|
_walk: function (visitor) { |
|
visitor._visit(this, function () { |
|
if (this.exported_definition) { |
|
this.exported_definition._walk(visitor); |
|
} |
|
if (this.exported_value) { |
|
this.exported_value._walk(visitor); |
|
} |
|
if (this.exported_names) { |
|
this.exported_names.forEach(function(name_export) { |
|
name_export._walk(visitor); |
|
}); |
|
} |
|
if (this.module_name) { |
|
this.module_name._walk(visitor); |
|
} |
|
}); |
|
} |
|
}, AST_Statement); |
|
|
|
var AST_VarDef = DEFNODE("VarDef", "name value", { |
|
$documentation: "A variable declaration; only appears in a AST_Definitions node", |
|
$propdoc: { |
|
name: "[AST_Destructuring|AST_SymbolConst|AST_SymbolLet|AST_SymbolVar] name of the variable", |
|
value: "[AST_Node?] initializer, or null of there's no initializer" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.name._walk(visitor); |
|
if (this.value) this.value._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
/* -----[ OTHER ]----- */ |
|
|
|
var AST_Call = DEFNODE("Call", "expression args", { |
|
$documentation: "A function call expression", |
|
$propdoc: { |
|
expression: "[AST_Node] expression to invoke as function", |
|
args: "[AST_Node*] array of arguments" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
var args = this.args; |
|
for (var i = 0, len = args.length; i < len; i++) { |
|
args[i]._walk(visitor); |
|
} |
|
this.expression._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_New = DEFNODE("New", null, { |
|
$documentation: "An object instantiation. Derives from a function call since it has exactly the same properties" |
|
}, AST_Call); |
|
|
|
var AST_Sequence = DEFNODE("Sequence", "expressions", { |
|
$documentation: "A sequence expression (comma-separated expressions)", |
|
$propdoc: { |
|
expressions: "[AST_Node*] array of expressions (at least two)" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.expressions.forEach(function(node) { |
|
node._walk(visitor); |
|
}); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_PropAccess = DEFNODE("PropAccess", "expression property", { |
|
$documentation: "Base class for property access expressions, i.e. `a.foo` or `a[\"foo\"]`", |
|
$propdoc: { |
|
expression: "[AST_Node] the “container” expression", |
|
property: "[AST_Node|string] the property to access. For AST_Dot this is always a plain string, while for AST_Sub it's an arbitrary AST_Node" |
|
} |
|
}); |
|
|
|
var AST_Dot = DEFNODE("Dot", null, { |
|
$documentation: "A dotted property access expression", |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.expression._walk(visitor); |
|
}); |
|
} |
|
}, AST_PropAccess); |
|
|
|
var AST_Sub = DEFNODE("Sub", null, { |
|
$documentation: "Index-style property access, i.e. `a[\"foo\"]`", |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.expression._walk(visitor); |
|
this.property._walk(visitor); |
|
}); |
|
} |
|
}, AST_PropAccess); |
|
|
|
var AST_Unary = DEFNODE("Unary", "operator expression", { |
|
$documentation: "Base class for unary expressions", |
|
$propdoc: { |
|
operator: "[string] the operator", |
|
expression: "[AST_Node] expression that this unary operator applies to" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.expression._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_UnaryPrefix = DEFNODE("UnaryPrefix", null, { |
|
$documentation: "Unary prefix expression, i.e. `typeof i` or `++i`" |
|
}, AST_Unary); |
|
|
|
var AST_UnaryPostfix = DEFNODE("UnaryPostfix", null, { |
|
$documentation: "Unary postfix expression, i.e. `i++`" |
|
}, AST_Unary); |
|
|
|
var AST_Binary = DEFNODE("Binary", "operator left right", { |
|
$documentation: "Binary expression, i.e. `a + b`", |
|
$propdoc: { |
|
left: "[AST_Node] left-hand side expression", |
|
operator: "[string] the operator", |
|
right: "[AST_Node] right-hand side expression" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.left._walk(visitor); |
|
this.right._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_Conditional = DEFNODE("Conditional", "condition consequent alternative", { |
|
$documentation: "Conditional expression using the ternary operator, i.e. `a ? b : c`", |
|
$propdoc: { |
|
condition: "[AST_Node]", |
|
consequent: "[AST_Node]", |
|
alternative: "[AST_Node]" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.condition._walk(visitor); |
|
this.consequent._walk(visitor); |
|
this.alternative._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_Assign = DEFNODE("Assign", null, { |
|
$documentation: "An assignment expression — `a = b + 5`", |
|
}, AST_Binary); |
|
|
|
var AST_DefaultAssign = DEFNODE("DefaultAssign", null, { |
|
$documentation: "A default assignment expression like in `(a = 3) => a`" |
|
}, AST_Binary); |
|
|
|
/* -----[ LITERALS ]----- */ |
|
|
|
var AST_Array = DEFNODE("Array", "elements", { |
|
$documentation: "An array literal", |
|
$propdoc: { |
|
elements: "[AST_Node*] array of elements" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
var elements = this.elements; |
|
for (var i = 0, len = elements.length; i < len; i++) { |
|
elements[i]._walk(visitor); |
|
} |
|
}); |
|
} |
|
}); |
|
|
|
var AST_Object = DEFNODE("Object", "properties", { |
|
$documentation: "An object literal", |
|
$propdoc: { |
|
properties: "[AST_ObjectProperty*] array of properties" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
var properties = this.properties; |
|
for (var i = 0, len = properties.length; i < len; i++) { |
|
properties[i]._walk(visitor); |
|
} |
|
}); |
|
} |
|
}); |
|
|
|
var AST_ObjectProperty = DEFNODE("ObjectProperty", "key value", { |
|
$documentation: "Base class for literal object properties", |
|
$propdoc: { |
|
key: "[string|AST_Node] property name. For ObjectKeyVal this is a string. For getters, setters and computed property this is an AST_Node.", |
|
value: "[AST_Node] property value. For getters and setters this is an AST_Accessor." |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
if (this.key instanceof AST_Node) |
|
this.key._walk(visitor); |
|
this.value._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_ObjectKeyVal = DEFNODE("ObjectKeyVal", "quote", { |
|
$documentation: "A key: value object property", |
|
$propdoc: { |
|
quote: "[string] the original quote character" |
|
} |
|
}, AST_ObjectProperty); |
|
|
|
var AST_ObjectSetter = DEFNODE("ObjectSetter", "quote static", { |
|
$propdoc: { |
|
quote: "[string|undefined] the original quote character, if any", |
|
static: "[boolean] whether this is a static setter (classes only)" |
|
}, |
|
$documentation: "An object setter property", |
|
}, AST_ObjectProperty); |
|
|
|
var AST_ObjectGetter = DEFNODE("ObjectGetter", "quote static", { |
|
$propdoc: { |
|
quote: "[string|undefined] the original quote character, if any", |
|
static: "[boolean] whether this is a static getter (classes only)" |
|
}, |
|
$documentation: "An object getter property", |
|
}, AST_ObjectProperty); |
|
|
|
var AST_ConciseMethod = DEFNODE("ConciseMethod", "quote static is_generator async", { |
|
$propdoc: { |
|
quote: "[string|undefined] the original quote character, if any", |
|
static: "[boolean] is this method static (classes only)", |
|
is_generator: "[boolean] is this a generator method", |
|
async: "[boolean] is this method async", |
|
}, |
|
$documentation: "An ES6 concise method inside an object or class" |
|
}, AST_ObjectProperty); |
|
|
|
var AST_Class = DEFNODE("Class", "name extends properties inlined", { |
|
$propdoc: { |
|
name: "[AST_SymbolClass|AST_SymbolDefClass?] optional class name.", |
|
extends: "[AST_Node]? optional parent class", |
|
properties: "[AST_ObjectProperty*] array of properties" |
|
}, |
|
$documentation: "An ES6 class", |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
if (this.name) { |
|
this.name._walk(visitor); |
|
} |
|
if (this.extends) { |
|
this.extends._walk(visitor); |
|
} |
|
this.properties.forEach(function(prop){ |
|
prop._walk(visitor); |
|
}); |
|
}); |
|
}, |
|
}, AST_Scope); |
|
|
|
var AST_DefClass = DEFNODE("DefClass", null, { |
|
$documentation: "A class definition", |
|
}, AST_Class); |
|
|
|
var AST_ClassExpression = DEFNODE("ClassExpression", null, { |
|
$documentation: "A class expression." |
|
}, AST_Class); |
|
|
|
var AST_Symbol = DEFNODE("Symbol", "scope name thedef", { |
|
$propdoc: { |
|
name: "[string] name of this symbol", |
|
scope: "[AST_Scope/S] the current scope (not necessarily the definition scope)", |
|
thedef: "[SymbolDef/S] the definition of this symbol" |
|
}, |
|
$documentation: "Base class for all symbols" |
|
}); |
|
|
|
var AST_NewTarget = DEFNODE("NewTarget", null, { |
|
$documentation: "A reference to new.target" |
|
}); |
|
|
|
var AST_SymbolDeclaration = DEFNODE("SymbolDeclaration", "init", { |
|
$documentation: "A declaration symbol (symbol in var/const, function name or argument, symbol in catch)", |
|
}, AST_Symbol); |
|
|
|
var AST_SymbolVar = DEFNODE("SymbolVar", null, { |
|
$documentation: "Symbol defining a variable", |
|
}, AST_SymbolDeclaration); |
|
|
|
var AST_SymbolBlockDeclaration = DEFNODE("SymbolBlockDeclaration", null, { |
|
$documentation: "Base class for block-scoped declaration symbols" |
|
}, AST_SymbolDeclaration); |
|
|
|
var AST_SymbolConst = DEFNODE("SymbolConst", null, { |
|
$documentation: "A constant declaration" |
|
}, AST_SymbolBlockDeclaration); |
|
|
|
var AST_SymbolLet = DEFNODE("SymbolLet", null, { |
|
$documentation: "A block-scoped `let` declaration" |
|
}, AST_SymbolBlockDeclaration); |
|
|
|
var AST_SymbolFunarg = DEFNODE("SymbolFunarg", null, { |
|
$documentation: "Symbol naming a function argument", |
|
}, AST_SymbolVar); |
|
|
|
var AST_SymbolDefun = DEFNODE("SymbolDefun", null, { |
|
$documentation: "Symbol defining a function", |
|
}, AST_SymbolDeclaration); |
|
|
|
var AST_SymbolMethod = DEFNODE("SymbolMethod", null, { |
|
$documentation: "Symbol in an object defining a method", |
|
}, AST_Symbol); |
|
|
|
var AST_SymbolLambda = DEFNODE("SymbolLambda", null, { |
|
$documentation: "Symbol naming a function expression", |
|
}, AST_SymbolDeclaration); |
|
|
|
var AST_SymbolDefClass = DEFNODE("SymbolDefClass", null, { |
|
$documentation: "Symbol naming a class's name in a class declaration. Lexically scoped to its containing scope, and accessible within the class." |
|
}, AST_SymbolBlockDeclaration); |
|
|
|
var AST_SymbolClass = DEFNODE("SymbolClass", null, { |
|
$documentation: "Symbol naming a class's name. Lexically scoped to the class." |
|
}, AST_SymbolDeclaration); |
|
|
|
var AST_SymbolCatch = DEFNODE("SymbolCatch", null, { |
|
$documentation: "Symbol naming the exception in catch", |
|
}, AST_SymbolBlockDeclaration); |
|
|
|
var AST_SymbolImport = DEFNODE("SymbolImport", null, { |
|
$documentation: "Symbol referring to an imported name", |
|
}, AST_SymbolBlockDeclaration); |
|
|
|
var AST_SymbolImportForeign = DEFNODE("SymbolImportForeign", null, { |
|
$documentation: "A symbol imported from a module, but it is defined in the other module, and its real name is irrelevant for this module's purposes", |
|
}, AST_Symbol); |
|
|
|
var AST_Label = DEFNODE("Label", "references", { |
|
$documentation: "Symbol naming a label (declaration)", |
|
$propdoc: { |
|
references: "[AST_LoopControl*] a list of nodes referring to this label" |
|
}, |
|
initialize: function() { |
|
this.references = []; |
|
this.thedef = this; |
|
} |
|
}, AST_Symbol); |
|
|
|
var AST_SymbolRef = DEFNODE("SymbolRef", null, { |
|
$documentation: "Reference to some symbol (not definition/declaration)", |
|
}, AST_Symbol); |
|
|
|
var AST_SymbolExport = DEFNODE("SymbolExport", null, { |
|
$documentation: "Symbol referring to a name to export", |
|
}, AST_SymbolRef); |
|
|
|
var AST_SymbolExportForeign = DEFNODE("SymbolExportForeign", null, { |
|
$documentation: "A symbol exported from this module, but it is used in the other module, and its real name is irrelevant for this module's purposes", |
|
}, AST_Symbol); |
|
|
|
var AST_LabelRef = DEFNODE("LabelRef", null, { |
|
$documentation: "Reference to a label symbol", |
|
}, AST_Symbol); |
|
|
|
var AST_This = DEFNODE("This", null, { |
|
$documentation: "The `this` symbol", |
|
}, AST_Symbol); |
|
|
|
var AST_Super = DEFNODE("Super", null, { |
|
$documentation: "The `super` symbol", |
|
}, AST_This); |
|
|
|
var AST_Constant = DEFNODE("Constant", null, { |
|
$documentation: "Base class for all constants", |
|
getValue: function() { |
|
return this.value; |
|
} |
|
}); |
|
|
|
var AST_String = DEFNODE("String", "value quote", { |
|
$documentation: "A string literal", |
|
$propdoc: { |
|
value: "[string] the contents of this string", |
|
quote: "[string] the original quote character" |
|
} |
|
}, AST_Constant); |
|
|
|
var AST_Number = DEFNODE("Number", "value literal", { |
|
$documentation: "A number literal", |
|
$propdoc: { |
|
value: "[number] the numeric value", |
|
literal: "[string] numeric value as string (optional)" |
|
} |
|
}, AST_Constant); |
|
|
|
var AST_RegExp = DEFNODE("RegExp", "value", { |
|
$documentation: "A regexp literal", |
|
$propdoc: { |
|
value: "[RegExp] the actual regexp" |
|
} |
|
}, AST_Constant); |
|
|
|
var AST_Atom = DEFNODE("Atom", null, { |
|
$documentation: "Base class for atoms", |
|
}, AST_Constant); |
|
|
|
var AST_Null = DEFNODE("Null", null, { |
|
$documentation: "The `null` atom", |
|
value: null |
|
}, AST_Atom); |
|
|
|
var AST_NaN = DEFNODE("NaN", null, { |
|
$documentation: "The impossible value", |
|
value: 0/0 |
|
}, AST_Atom); |
|
|
|
var AST_Undefined = DEFNODE("Undefined", null, { |
|
$documentation: "The `undefined` value", |
|
value: (function(){}()) |
|
}, AST_Atom); |
|
|
|
var AST_Hole = DEFNODE("Hole", null, { |
|
$documentation: "A hole in an array", |
|
value: (function(){}()) |
|
}, AST_Atom); |
|
|
|
var AST_Infinity = DEFNODE("Infinity", null, { |
|
$documentation: "The `Infinity` value", |
|
value: 1/0 |
|
}, AST_Atom); |
|
|
|
var AST_Boolean = DEFNODE("Boolean", null, { |
|
$documentation: "Base class for booleans", |
|
}, AST_Atom); |
|
|
|
var AST_False = DEFNODE("False", null, { |
|
$documentation: "The `false` atom", |
|
value: false |
|
}, AST_Boolean); |
|
|
|
var AST_True = DEFNODE("True", null, { |
|
$documentation: "The `true` atom", |
|
value: true |
|
}, AST_Boolean); |
|
|
|
var AST_Await = DEFNODE("Await", "expression", { |
|
$documentation: "An `await` statement", |
|
$propdoc: { |
|
expression: "[AST_Node] the mandatory expression being awaited", |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, function(){ |
|
this.expression._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
var AST_Yield = DEFNODE("Yield", "expression is_star", { |
|
$documentation: "A `yield` statement", |
|
$propdoc: { |
|
expression: "[AST_Node?] the value returned or thrown by this statement; could be null (representing undefined) but only when is_star is set to false", |
|
is_star: "[Boolean] Whether this is a yield or yield* statement" |
|
}, |
|
_walk: function(visitor) { |
|
return visitor._visit(this, this.expression && function(){ |
|
this.expression._walk(visitor); |
|
}); |
|
} |
|
}); |
|
|
|
/* -----[ TreeWalker ]----- */ |
|
|
|
function TreeWalker(callback) { |
|
this.visit = callback; |
|
this.stack = []; |
|
this.directives = Object.create(null); |
|
}; |
|
TreeWalker.prototype = { |
|
_visit: function(node, descend) { |
|
this.push(node); |
|
var ret = this.visit(node, descend ? function(){ |
|
descend.call(node); |
|
} : noop); |
|
if (!ret && descend) { |
|
descend.call(node); |
|
} |
|
this.pop(); |
|
return ret; |
|
}, |
|
parent: function(n) { |
|
return this.stack[this.stack.length - 2 - (n || 0)]; |
|
}, |
|
push: function(node) { |
|
if (node instanceof AST_Lambda) { |
|
this.directives = Object.create(this.directives); |
|
} else if (node instanceof AST_Directive && !this.directives[node.value]) { |
|
this.directives[node.value] = node; |
|
} else if (node instanceof AST_Class) { |
|
this.directives = Object.create(this.directives); |
|
if (!this.directives["use strict"]) { |
|
this.directives["use strict"] = node; |
|
} |
|
} |
|
this.stack.push(node); |
|
}, |
|
pop: function() { |
|
var node = this.stack.pop(); |
|
if (node instanceof AST_Lambda || node instanceof AST_Class) { |
|
this.directives = Object.getPrototypeOf(this.directives); |
|
} |
|
}, |
|
self: function() { |
|
return this.stack[this.stack.length - 1]; |
|
}, |
|
find_parent: function(type) { |
|
var stack = this.stack; |
|
for (var i = stack.length; --i >= 0;) { |
|
var x = stack[i]; |
|
if (x instanceof type) return x; |
|
} |
|
}, |
|
has_directive: function(type) { |
|
var dir = this.directives[type]; |
|
if (dir) return dir; |
|
var node = this.stack[this.stack.length - 1]; |
|
if (node instanceof AST_Scope && node.body) { |
|
for (var i = 0; i < node.body.length; ++i) { |
|
var st = node.body[i]; |
|
if (!(st instanceof AST_Directive)) break; |
|
if (st.value == type) return st; |
|
} |
|
} |
|
}, |
|
loopcontrol_target: function(node) { |
|
var stack = this.stack; |
|
if (node.label) for (var i = stack.length; --i >= 0;) { |
|
var x = stack[i]; |
|
if (x instanceof AST_LabeledStatement && x.label.name == node.label.name) |
|
return x.body; |
|
} else for (var i = stack.length; --i >= 0;) { |
|
var x = stack[i]; |
|
if (x instanceof AST_IterationStatement |
|
|| node instanceof AST_Break && x instanceof AST_Switch) |
|
return x; |
|
} |
|
} |
|
};
|
|
|