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jashkenas--coffeescript/lib/nodes.js
Michael Ficarra 7cf5988099 allowing classes to extend expressions; fixes #1482
2011-08-07 05:02:01 -04:00

2005 lines
76 KiB
JavaScript
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(function() {
var Access, Arr, Assign, Base, Block, Call, Class, Closure, Code, Comment, Existence, Extends, For, IDENTIFIER, IDENTIFIER_STR, IS_STRING, If, In, Index, LEVEL_ACCESS, LEVEL_COND, LEVEL_LIST, LEVEL_OP, LEVEL_PAREN, LEVEL_TOP, Literal, METHOD_DEF, NEGATE, NO, Obj, Op, Param, Parens, Push, Range, Return, SIMPLENUM, Scope, Slice, Splat, Switch, TAB, THIS, Throw, Try, UTILITIES, Value, While, YES, compact, del, ends, extend, flatten, last, merge, multident, starts, unfoldSoak, utility, _ref;
var __hasProp = Object.prototype.hasOwnProperty, __extends = function(child, parent) {
for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; }
function ctor() { this.constructor = child; }
ctor.prototype = parent.prototype;
child.prototype = new ctor;
child.__super__ = parent.prototype;
return child;
}, __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; }, __indexOf = Array.prototype.indexOf || function(item) {
for (var i = 0, l = this.length; i < l; i++) {
if (this[i] === item) return i;
}
return -1;
};
Scope = require('./scope').Scope;
_ref = require('./helpers'), compact = _ref.compact, flatten = _ref.flatten, extend = _ref.extend, merge = _ref.merge, del = _ref.del, starts = _ref.starts, ends = _ref.ends, last = _ref.last;
exports.extend = extend;
YES = function() {
return true;
};
NO = function() {
return false;
};
THIS = function() {
return this;
};
NEGATE = function() {
this.negated = !this.negated;
return this;
};
exports.Base = Base = (function() {
function Base() {}
Base.prototype.compile = function(o, lvl) {
var node;
o = extend({}, o);
if (lvl) o.level = lvl;
node = this.unfoldSoak(o) || this;
node.tab = o.indent;
if (o.level === LEVEL_TOP || !node.isStatement(o)) {
return node.compileNode(o);
} else {
return node.compileClosure(o);
}
};
Base.prototype.compileClosure = function(o) {
if (this.jumps() || this instanceof Throw) throw SyntaxError('cannot use a pure statement in an expression.');
o.sharedScope = true;
return Closure.wrap(this).compileNode(o);
};
Base.prototype.cache = function(o, level, reused) {
var ref, sub;
if (!this.isComplex()) {
ref = level ? this.compile(o, level) : this;
return [ref, ref];
} else {
ref = new Literal(reused || o.scope.freeVariable('ref'));
sub = new Assign(ref, this);
if (level) {
return [sub.compile(o, level), ref.value];
} else {
return [sub, ref];
}
}
};
Base.prototype.compileLoopReference = function(o, name) {
var src, tmp;
src = tmp = this.compile(o, LEVEL_LIST);
if (!((-Infinity < +src && +src < Infinity) || IDENTIFIER.test(src) && o.scope.check(src, true))) src = "" + (tmp = o.scope.freeVariable(name)) + " = " + src;
return [src, tmp];
};
Base.prototype.makeReturn = function() {
return new Return(this);
};
Base.prototype.contains = function(pred) {
var contains;
contains = false;
this.traverseChildren(false, function(node) {
if (pred(node)) {
contains = true;
return false;
}
});
return contains;
};
Base.prototype.containsType = function(type) {
return this instanceof type || this.contains(function(node) {
return node instanceof type;
});
};
Base.prototype.lastNonComment = function(list) {
var i;
i = list.length;
while (i--) {
if (!(list[i] instanceof Comment)) return list[i];
}
return null;
};
Base.prototype.toString = function(idt, name) {
var tree;
if (idt == null) idt = '';
if (name == null) name = this.constructor.name;
tree = '\n' + idt + name;
if (this.soak) tree += '?';
this.eachChild(function(node) {
return tree += node.toString(idt + TAB);
});
return tree;
};
Base.prototype.eachChild = function(func) {
var attr, child, _i, _j, _len, _len2, _ref2, _ref3;
if (!this.children) return this;
_ref2 = this.children;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
attr = _ref2[_i];
if (this[attr]) {
_ref3 = flatten([this[attr]]);
for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) {
child = _ref3[_j];
if (func(child) === false) return this;
}
}
}
return this;
};
Base.prototype.traverseChildren = function(crossScope, func) {
return this.eachChild(function(child) {
if (func(child) === false) return false;
return child.traverseChildren(crossScope, func);
});
};
Base.prototype.invert = function() {
return new Op('!', this);
};
Base.prototype.unwrapAll = function() {
var node;
node = this;
while (node !== (node = node.unwrap())) {
continue;
}
return node;
};
Base.prototype.children = [];
Base.prototype.isStatement = NO;
Base.prototype.jumps = NO;
Base.prototype.isComplex = YES;
Base.prototype.isChainable = NO;
Base.prototype.isAssignable = NO;
Base.prototype.unwrap = THIS;
Base.prototype.unfoldSoak = NO;
Base.prototype.assigns = NO;
return Base;
})();
exports.Block = Block = (function() {
__extends(Block, Base);
function Block(nodes) {
this.expressions = compact(flatten(nodes || []));
}
Block.prototype.children = ['expressions'];
Block.prototype.push = function(node) {
this.expressions.push(node);
return this;
};
Block.prototype.pop = function() {
return this.expressions.pop();
};
Block.prototype.unshift = function(node) {
this.expressions.unshift(node);
return this;
};
Block.prototype.unwrap = function() {
if (this.expressions.length === 1) {
return this.expressions[0];
} else {
return this;
}
};
Block.prototype.isEmpty = function() {
return !this.expressions.length;
};
Block.prototype.isStatement = function(o) {
var exp, _i, _len, _ref2;
_ref2 = this.expressions;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
exp = _ref2[_i];
if (exp.isStatement(o)) return true;
}
return false;
};
Block.prototype.jumps = function(o) {
var exp, _i, _len, _ref2;
_ref2 = this.expressions;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
exp = _ref2[_i];
if (exp.jumps(o)) return exp;
}
};
Block.prototype.makeReturn = function() {
var expr, len;
len = this.expressions.length;
while (len--) {
expr = this.expressions[len];
if (!(expr instanceof Comment)) {
this.expressions[len] = expr.makeReturn();
if (expr instanceof Return && !expr.expression) this.expressions.splice(len, 1);
break;
}
}
return this;
};
Block.prototype.compile = function(o, level) {
if (o == null) o = {};
if (o.scope) {
return Block.__super__.compile.call(this, o, level);
} else {
return this.compileRoot(o);
}
};
Block.prototype.compileNode = function(o) {
var code, codes, node, top, _i, _len, _ref2;
this.tab = o.indent;
top = o.level === LEVEL_TOP;
codes = [];
_ref2 = this.expressions;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
node = _ref2[_i];
node = node.unwrapAll();
node = node.unfoldSoak(o) || node;
if (node instanceof Block) {
codes.push(node.compileNode(o));
} else if (top) {
node.front = true;
code = node.compile(o);
codes.push(node.isStatement(o) ? code : "" + this.tab + code + ";");
} else {
codes.push(node.compile(o, LEVEL_LIST));
}
}
if (top) return codes.join('\n');
code = codes.join(', ') || 'void 0';
if (codes.length > 1 && o.level >= LEVEL_LIST) {
return "(" + code + ")";
} else {
return code;
}
};
Block.prototype.compileRoot = function(o) {
var code;
o.indent = this.tab = o.bare ? '' : TAB;
o.scope = new Scope(null, this, null);
o.level = LEVEL_TOP;
code = this.compileWithDeclarations(o);
if (o.bare) {
return code;
} else {
return "(function() {\n" + code + "\n}).call(this);\n";
}
};
Block.prototype.compileWithDeclarations = function(o) {
var assigns, code, declars, exp, i, post, rest, scope, _len, _ref2;
code = post = '';
_ref2 = this.expressions;
for (i = 0, _len = _ref2.length; i < _len; i++) {
exp = _ref2[i];
exp = exp.unwrap();
if (!(exp instanceof Comment || exp instanceof Literal)) break;
}
o = merge(o, {
level: LEVEL_TOP
});
if (i) {
rest = this.expressions.splice(i, this.expressions.length);
code = this.compileNode(o);
this.expressions = rest;
}
post = this.compileNode(o);
scope = o.scope;
if (scope.expressions === this) {
declars = o.scope.hasDeclarations();
assigns = scope.hasAssignments;
if ((declars || assigns) && i) code += '\n';
if (declars) code += "" + this.tab + "var " + (scope.declaredVariables().join(', ')) + ";\n";
if (assigns) code += "" + this.tab + "var " + (multident(scope.assignedVariables().join(', '), this.tab)) + ";\n";
}
return code + post;
};
Block.wrap = function(nodes) {
if (nodes.length === 1 && nodes[0] instanceof Block) return nodes[0];
return new Block(nodes);
};
return Block;
})();
exports.Literal = Literal = (function() {
__extends(Literal, Base);
function Literal(value) {
this.value = value;
}
Literal.prototype.makeReturn = function() {
if (this.isStatement()) {
return this;
} else {
return new Return(this);
}
};
Literal.prototype.isAssignable = function() {
return IDENTIFIER.test(this.value);
};
Literal.prototype.isStatement = function() {
var _ref2;
return (_ref2 = this.value) === 'break' || _ref2 === 'continue' || _ref2 === 'debugger';
};
Literal.prototype.isComplex = NO;
Literal.prototype.assigns = function(name) {
return name === this.value;
};
Literal.prototype.jumps = function(o) {
if (!this.isStatement()) return false;
if (!(o && (o.loop || o.block && (this.value !== 'continue')))) {
return this;
} else {
return false;
}
};
Literal.prototype.compileNode = function(o) {
var code;
code = this.isUndefined ? o.level >= LEVEL_ACCESS ? '(void 0)' : 'void 0' : this.value.reserved ? "\"" + this.value + "\"" : this.value;
if (this.isStatement()) {
return "" + this.tab + code + ";";
} else {
return code;
}
};
Literal.prototype.toString = function() {
return ' "' + this.value + '"';
};
return Literal;
})();
exports.Return = Return = (function() {
__extends(Return, Base);
function Return(expr) {
if (expr && !expr.unwrap().isUndefined) this.expression = expr;
}
Return.prototype.children = ['expression'];
Return.prototype.isStatement = YES;
Return.prototype.makeReturn = THIS;
Return.prototype.jumps = THIS;
Return.prototype.compile = function(o, level) {
var expr, _ref2;
expr = (_ref2 = this.expression) != null ? _ref2.makeReturn() : void 0;
if (expr && !(expr instanceof Return)) {
return expr.compile(o, level);
} else {
return Return.__super__.compile.call(this, o, level);
}
};
Return.prototype.compileNode = function(o) {
return this.tab + ("return" + [this.expression ? " " + (this.expression.compile(o, LEVEL_PAREN)) : void 0] + ";");
};
return Return;
})();
exports.Value = Value = (function() {
__extends(Value, Base);
function Value(base, props, tag) {
if (!props && base instanceof Value) return base;
this.base = base;
this.properties = props || [];
if (tag) this[tag] = true;
return this;
}
Value.prototype.children = ['base', 'properties'];
Value.prototype.push = function(prop) {
this.properties.push(prop);
return this;
};
Value.prototype.hasProperties = function() {
return !!this.properties.length;
};
Value.prototype.isArray = function() {
return !this.properties.length && this.base instanceof Arr;
};
Value.prototype.isComplex = function() {
return this.hasProperties() || this.base.isComplex();
};
Value.prototype.isAssignable = function() {
return this.hasProperties() || this.base.isAssignable();
};
Value.prototype.isSimpleNumber = function() {
return this.base instanceof Literal && SIMPLENUM.test(this.base.value);
};
Value.prototype.isAtomic = function() {
var node, _i, _len, _ref2;
_ref2 = this.properties.concat(this.base);
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
node = _ref2[_i];
if (node.soak || node instanceof Call) return false;
}
return true;
};
Value.prototype.isStatement = function(o) {
return !this.properties.length && this.base.isStatement(o);
};
Value.prototype.assigns = function(name) {
return !this.properties.length && this.base.assigns(name);
};
Value.prototype.jumps = function(o) {
return !this.properties.length && this.base.jumps(o);
};
Value.prototype.isObject = function(onlyGenerated) {
if (this.properties.length) return false;
return (this.base instanceof Obj) && (!onlyGenerated || this.base.generated);
};
Value.prototype.isSplice = function() {
return last(this.properties) instanceof Slice;
};
Value.prototype.makeReturn = function() {
if (this.properties.length) {
return Value.__super__.makeReturn.call(this);
} else {
return this.base.makeReturn();
}
};
Value.prototype.unwrap = function() {
if (this.properties.length) {
return this;
} else {
return this.base;
}
};
Value.prototype.cacheReference = function(o) {
var base, bref, name, nref;
name = last(this.properties);
if (this.properties.length < 2 && !this.base.isComplex() && !(name != null ? name.isComplex() : void 0)) return [this, this];
base = new Value(this.base, this.properties.slice(0, -1));
if (base.isComplex()) {
bref = new Literal(o.scope.freeVariable('base'));
base = new Value(new Parens(new Assign(bref, base)));
}
if (!name) return [base, bref];
if (name.isComplex()) {
nref = new Literal(o.scope.freeVariable('name'));
name = new Index(new Assign(nref, name.index));
nref = new Index(nref);
}
return [base.push(name), new Value(bref || base.base, [nref || name])];
};
Value.prototype.compileNode = function(o) {
var code, prop, props, _i, _len;
this.base.front = this.front;
props = this.properties;
code = this.base.compile(o, props.length ? LEVEL_ACCESS : null);
if ((this.base instanceof Parens || props.length) && SIMPLENUM.test(code)) code = "" + code + ".";
for (_i = 0, _len = props.length; _i < _len; _i++) {
prop = props[_i];
code += prop.compile(o);
}
return code;
};
Value.prototype.unfoldSoak = function(o) {
var result;
if (this.unfoldedSoak != null) return this.unfoldedSoak;
result = __bind(function() {
var fst, i, ifn, prop, ref, snd, _len, _ref2;
if (ifn = this.base.unfoldSoak(o)) {
Array.prototype.push.apply(ifn.body.properties, this.properties);
return ifn;
}
_ref2 = this.properties;
for (i = 0, _len = _ref2.length; i < _len; i++) {
prop = _ref2[i];
if (!prop.soak) continue;
prop.soak = false;
fst = new Value(this.base, this.properties.slice(0, i));
snd = new Value(this.base, this.properties.slice(i));
if (fst.isComplex()) {
ref = new Literal(o.scope.freeVariable('ref'));
fst = new Parens(new Assign(ref, fst));
snd.base = ref;
}
return new If(new Existence(fst), snd, {
soak: true
});
}
return null;
}, this)();
return this.unfoldedSoak = result || false;
};
return Value;
})();
exports.Comment = Comment = (function() {
__extends(Comment, Base);
function Comment(comment) {
this.comment = comment;
}
Comment.prototype.isStatement = YES;
Comment.prototype.makeReturn = THIS;
Comment.prototype.compileNode = function(o, level) {
var code;
code = '/*' + multident(this.comment, this.tab) + ("\n" + this.tab + "*/\n");
if ((level || o.level) === LEVEL_TOP) code = o.indent + code;
return code;
};
return Comment;
})();
exports.Call = Call = (function() {
__extends(Call, Base);
function Call(variable, args, soak) {
this.args = args != null ? args : [];
this.soak = soak;
this.isNew = false;
this.isSuper = variable === 'super';
this.variable = this.isSuper ? null : variable;
}
Call.prototype.children = ['variable', 'args'];
Call.prototype.newInstance = function() {
var base;
base = this.variable.base || this.variable;
if (base instanceof Call && !base.isNew) {
base.newInstance();
} else {
this.isNew = true;
}
return this;
};
Call.prototype.superReference = function(o) {
var method, name;
method = o.scope.method;
if (!method) throw SyntaxError('cannot call super outside of a function.');
name = method.name;
if (name == null) throw SyntaxError('cannot call super on an anonymous function.');
if (method.klass) {
return (new Value(new Literal(method.klass), [new Access(new Literal("__super__")), new Access(new Literal(name))])).compile(o);
} else {
return "" + name + ".__super__.constructor";
}
};
Call.prototype.unfoldSoak = function(o) {
var call, ifn, left, list, rite, _i, _len, _ref2, _ref3;
if (this.soak) {
if (this.variable) {
if (ifn = unfoldSoak(o, this, 'variable')) return ifn;
_ref2 = new Value(this.variable).cacheReference(o), left = _ref2[0], rite = _ref2[1];
} else {
left = new Literal(this.superReference(o));
rite = new Value(left);
}
rite = new Call(rite, this.args);
rite.isNew = this.isNew;
left = new Literal("typeof " + (left.compile(o)) + " === \"function\"");
return new If(left, new Value(rite), {
soak: true
});
}
call = this;
list = [];
while (true) {
if (call.variable instanceof Call) {
list.push(call);
call = call.variable;
continue;
}
if (!(call.variable instanceof Value)) break;
list.push(call);
if (!((call = call.variable.base) instanceof Call)) break;
}
_ref3 = list.reverse();
for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
call = _ref3[_i];
if (ifn) {
if (call.variable instanceof Call) {
call.variable = ifn;
} else {
call.variable.base = ifn;
}
}
ifn = unfoldSoak(o, call, 'variable');
}
return ifn;
};
Call.prototype.filterImplicitObjects = function(list) {
var node, nodes, obj, prop, properties, _i, _j, _len, _len2, _ref2;
nodes = [];
for (_i = 0, _len = list.length; _i < _len; _i++) {
node = list[_i];
if (!((typeof node.isObject === "function" ? node.isObject() : void 0) && node.base.generated)) {
nodes.push(node);
continue;
}
obj = null;
_ref2 = node.base.properties;
for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
prop = _ref2[_j];
if (prop instanceof Assign || prop instanceof Comment) {
if (!obj) nodes.push(obj = new Obj(properties = [], true));
properties.push(prop);
} else {
nodes.push(prop);
obj = null;
}
}
}
return nodes;
};
Call.prototype.compileNode = function(o) {
var arg, args, code, _ref2;
if ((_ref2 = this.variable) != null) _ref2.front = this.front;
if (code = Splat.compileSplattedArray(o, this.args, true)) return this.compileSplat(o, code);
args = this.filterImplicitObjects(this.args);
args = ((function() {
var _i, _len, _results;
_results = [];
for (_i = 0, _len = args.length; _i < _len; _i++) {
arg = args[_i];
_results.push(arg.compile(o, LEVEL_LIST));
}
return _results;
})()).join(', ');
if (this.isSuper) {
return this.superReference(o) + (".call(this" + (args && ', ' + args) + ")");
} else {
return (this.isNew ? 'new ' : '') + this.variable.compile(o, LEVEL_ACCESS) + ("(" + args + ")");
}
};
Call.prototype.compileSuper = function(args, o) {
return "" + (this.superReference(o)) + ".call(this" + (args.length ? ', ' : '') + args + ")";
};
Call.prototype.compileSplat = function(o, splatArgs) {
var base, fun, idt, name, ref;
if (this.isSuper) return "" + (this.superReference(o)) + ".apply(this, " + splatArgs + ")";
if (this.isNew) {
idt = this.tab + TAB;
return "(function(func, args, ctor) {\n" + idt + "ctor.prototype = func.prototype;\n" + idt + "var child = new ctor, result = func.apply(child, args);\n" + idt + "return typeof result === \"object\" ? result : child;\n" + this.tab + "})(" + (this.variable.compile(o, LEVEL_LIST)) + ", " + splatArgs + ", function() {})";
}
base = new Value(this.variable);
if ((name = base.properties.pop()) && base.isComplex()) {
ref = o.scope.freeVariable('ref');
fun = "(" + ref + " = " + (base.compile(o, LEVEL_LIST)) + ")" + (name.compile(o));
} else {
fun = base.compile(o, LEVEL_ACCESS);
if (SIMPLENUM.test(fun)) fun = "(" + fun + ")";
if (name) {
ref = fun;
fun += name.compile(o);
} else {
ref = 'null';
}
}
return "" + fun + ".apply(" + ref + ", " + splatArgs + ")";
};
return Call;
})();
exports.Extends = Extends = (function() {
__extends(Extends, Base);
function Extends(child, parent) {
this.child = child;
this.parent = parent;
}
Extends.prototype.children = ['child', 'parent'];
Extends.prototype.compile = function(o) {
utility('hasProp');
return new Call(new Value(new Literal(utility('extends'))), [this.child, this.parent]).compile(o);
};
return Extends;
})();
exports.Access = Access = (function() {
__extends(Access, Base);
function Access(name, tag) {
this.name = name;
this.name.asKey = true;
this.proto = tag === 'proto' ? '.prototype' : '';
this.soak = tag === 'soak';
}
Access.prototype.children = ['name'];
Access.prototype.compile = function(o) {
var name;
name = this.name.compile(o);
return this.proto + (IDENTIFIER.test(name) ? "." + name : "[" + name + "]");
};
Access.prototype.isComplex = NO;
return Access;
})();
exports.Index = Index = (function() {
__extends(Index, Base);
function Index(index) {
this.index = index;
}
Index.prototype.children = ['index'];
Index.prototype.compile = function(o) {
return (this.proto ? '.prototype' : '') + ("[" + (this.index.compile(o, LEVEL_PAREN)) + "]");
};
Index.prototype.isComplex = function() {
return this.index.isComplex();
};
return Index;
})();
exports.Range = Range = (function() {
__extends(Range, Base);
Range.prototype.children = ['from', 'to'];
function Range(from, to, tag) {
this.from = from;
this.to = to;
this.exclusive = tag === 'exclusive';
this.equals = this.exclusive ? '' : '=';
}
Range.prototype.compileVariables = function(o) {
var step, _ref2, _ref3, _ref4, _ref5;
o = merge(o, {
top: true
});
_ref2 = this.from.cache(o, LEVEL_LIST), this.fromC = _ref2[0], this.fromVar = _ref2[1];
_ref3 = this.to.cache(o, LEVEL_LIST), this.toC = _ref3[0], this.toVar = _ref3[1];
if (step = del(o, 'step')) _ref4 = step.cache(o, LEVEL_LIST), this.step = _ref4[0], this.stepVar = _ref4[1];
_ref5 = [this.fromVar.match(SIMPLENUM), this.toVar.match(SIMPLENUM)], this.fromNum = _ref5[0], this.toNum = _ref5[1];
if (this.stepVar) return this.stepNum = this.stepVar.match(SIMPLENUM);
};
Range.prototype.compileNode = function(o) {
var cond, condPart, from, gt, idx, known, lt, stepPart, to, varPart, _ref2, _ref3;
if (!this.fromVar) this.compileVariables(o);
if (!o.index) return this.compileArray(o);
known = this.fromNum && this.toNum;
idx = del(o, 'index');
varPart = "" + idx + " = " + this.fromC;
if (this.toC !== this.toVar) varPart += ", " + this.toC;
if (this.step !== this.stepVar) varPart += ", " + this.step;
_ref2 = ["" + idx + " <" + this.equals, "" + idx + " >" + this.equals], lt = _ref2[0], gt = _ref2[1];
condPart = this.stepNum ? +this.stepNum > 0 ? "" + lt + " " + this.toVar : "" + gt + " " + this.toVar : known ? ((_ref3 = [+this.fromNum, +this.toNum], from = _ref3[0], to = _ref3[1], _ref3), from <= to ? "" + lt + " " + to : "" + gt + " " + to) : (cond = "" + this.fromVar + " <= " + this.toVar, "" + cond + " ? " + lt + " " + this.toVar + " : " + gt + " " + this.toVar);
stepPart = this.stepVar ? "" + idx + " += " + this.stepVar : known ? from <= to ? "" + idx + "++" : "" + idx + "--" : "" + cond + " ? " + idx + "++ : " + idx + "--";
return "" + varPart + "; " + condPart + "; " + stepPart;
};
Range.prototype.compileArray = function(o) {
var args, body, cond, hasArgs, i, idt, post, pre, range, result, vars, _i, _ref2, _ref3, _results;
if (this.fromNum && this.toNum && Math.abs(this.fromNum - this.toNum) <= 20) {
range = (function() {
_results = [];
for (var _i = _ref2 = +this.fromNum, _ref3 = +this.toNum; _ref2 <= _ref3 ? _i <= _ref3 : _i >= _ref3; _ref2 <= _ref3 ? _i++ : _i--){ _results.push(_i); }
return _results;
}).apply(this);
if (this.exclusive) range.pop();
return "[" + (range.join(', ')) + "]";
}
idt = this.tab + TAB;
i = o.scope.freeVariable('i');
result = o.scope.freeVariable('results');
pre = "\n" + idt + result + " = [];";
if (this.fromNum && this.toNum) {
o.index = i;
body = this.compileNode(o);
} else {
vars = ("" + i + " = " + this.fromC) + (this.toC !== this.toVar ? ", " + this.toC : '');
cond = "" + this.fromVar + " <= " + this.toVar;
body = "var " + vars + "; " + cond + " ? " + i + " <" + this.equals + " " + this.toVar + " : " + i + " >" + this.equals + " " + this.toVar + "; " + cond + " ? " + i + "++ : " + i + "--";
}
post = "{ " + result + ".push(" + i + "); }\n" + idt + "return " + result + ";\n" + o.indent;
hasArgs = function(node) {
return node != null ? node.contains(function(n) {
return n instanceof Literal && n.value === 'arguments' && !n.asKey;
}) : void 0;
};
if (hasArgs(this.from) || hasArgs(this.to)) args = ', arguments';
return "(function() {" + pre + "\n" + idt + "for (" + body + ")" + post + "}).apply(this" + (args != null ? args : '') + ")";
};
return Range;
})();
exports.Slice = Slice = (function() {
__extends(Slice, Base);
Slice.prototype.children = ['range'];
function Slice(range) {
this.range = range;
Slice.__super__.constructor.call(this);
}
Slice.prototype.compileNode = function(o) {
var compiled, from, fromStr, to, toStr, _ref2;
_ref2 = this.range, to = _ref2.to, from = _ref2.from;
fromStr = from && from.compile(o, LEVEL_PAREN) || '0';
compiled = to && to.compile(o, LEVEL_PAREN);
if (to && !(!this.range.exclusive && +compiled === -1)) toStr = ', ' + (this.range.exclusive ? compiled : SIMPLENUM.test(compiled) ? (+compiled + 1).toString() : "(" + compiled + " + 1) || 9e9");
return ".slice(" + fromStr + (toStr || '') + ")";
};
return Slice;
})();
exports.Obj = Obj = (function() {
__extends(Obj, Base);
function Obj(props, generated) {
this.generated = generated != null ? generated : false;
this.objects = this.properties = props || [];
}
Obj.prototype.children = ['properties'];
Obj.prototype.compileNode = function(o) {
var i, idt, indent, join, lastNoncom, node, obj, prop, props, _i, _len;
props = this.properties;
if (!props.length) {
if (this.front) {
return '({})';
} else {
return '{}';
}
}
if (this.generated) {
for (_i = 0, _len = props.length; _i < _len; _i++) {
node = props[_i];
if (node instanceof Value) throw new Error('cannot have an implicit value in an implicit object');
}
}
idt = o.indent += TAB;
lastNoncom = this.lastNonComment(this.properties);
props = (function() {
var _len2, _results;
_results = [];
for (i = 0, _len2 = props.length; i < _len2; i++) {
prop = props[i];
join = i === props.length - 1 ? '' : prop === lastNoncom || prop instanceof Comment ? '\n' : ',\n';
indent = prop instanceof Comment ? '' : idt;
if (prop instanceof Value && prop["this"]) prop = new Assign(prop.properties[0].name, prop, 'object');
if (!(prop instanceof Comment)) {
if (!(prop instanceof Assign)) prop = new Assign(prop, prop, 'object');
(prop.variable.base || prop.variable).asKey = true;
}
_results.push(indent + prop.compile(o, LEVEL_TOP) + join);
}
return _results;
})();
props = props.join('');
obj = "{" + (props && '\n' + props + '\n' + this.tab) + "}";
if (this.front) {
return "(" + obj + ")";
} else {
return obj;
}
};
Obj.prototype.assigns = function(name) {
var prop, _i, _len, _ref2;
_ref2 = this.properties;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
prop = _ref2[_i];
if (prop.assigns(name)) return true;
}
return false;
};
return Obj;
})();
exports.Arr = Arr = (function() {
__extends(Arr, Base);
function Arr(objs) {
this.objects = objs || [];
}
Arr.prototype.children = ['objects'];
Arr.prototype.filterImplicitObjects = Call.prototype.filterImplicitObjects;
Arr.prototype.compileNode = function(o) {
var code, obj, objs;
if (!this.objects.length) return '[]';
o.indent += TAB;
objs = this.filterImplicitObjects(this.objects);
if (code = Splat.compileSplattedArray(o, objs)) return code;
code = ((function() {
var _i, _len, _results;
_results = [];
for (_i = 0, _len = objs.length; _i < _len; _i++) {
obj = objs[_i];
_results.push(obj.compile(o, LEVEL_LIST));
}
return _results;
})()).join(', ');
if (code.indexOf('\n') >= 0) {
return "[\n" + o.indent + code + "\n" + this.tab + "]";
} else {
return "[" + code + "]";
}
};
Arr.prototype.assigns = function(name) {
var obj, _i, _len, _ref2;
_ref2 = this.objects;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
obj = _ref2[_i];
if (obj.assigns(name)) return true;
}
return false;
};
return Arr;
})();
exports.Class = Class = (function() {
__extends(Class, Base);
function Class(variable, parent, body) {
this.variable = variable;
this.parent = parent;
this.body = body != null ? body : new Block;
this.boundFuncs = [];
this.body.classBody = true;
}
Class.prototype.children = ['variable', 'parent', 'body'];
Class.prototype.determineName = function() {
var decl, tail;
if (!this.variable) return null;
decl = (tail = last(this.variable.properties)) ? tail instanceof Access && tail.name.value : this.variable.base.value;
return decl && (decl = IDENTIFIER.test(decl) && decl);
};
Class.prototype.setContext = function(name) {
return this.body.traverseChildren(false, function(node) {
if (node.classBody) return false;
if (node instanceof Literal && node.value === 'this') {
return node.value = name;
} else if (node instanceof Code) {
node.klass = name;
if (node.bound) return node.context = name;
}
});
};
Class.prototype.addBoundFunctions = function(o) {
var bvar, lhs, _i, _len, _ref2, _results;
if (this.boundFuncs.length) {
_ref2 = this.boundFuncs;
_results = [];
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
bvar = _ref2[_i];
lhs = (new Value(new Literal("this"), [new Access(bvar)])).compile(o);
_results.push(this.ctor.body.unshift(new Literal("" + lhs + " = " + (utility('bind')) + "(" + lhs + ", this)")));
}
return _results;
}
};
Class.prototype.addProperties = function(node, name, o) {
var assign, base, exprs, func, props;
props = node.base.properties.slice(0);
exprs = (function() {
var _results;
_results = [];
while (assign = props.shift()) {
if (assign instanceof Assign) {
base = assign.variable.base;
delete assign.context;
func = assign.value;
if (base.value === 'constructor') {
if (this.ctor) throw new Error('cannot define more than one constructor in a class');
if (func.bound) throw new Error('cannot define a constructor as a bound function');
if (func instanceof Code) {
assign = this.ctor = func;
} else {
this.externalCtor = o.scope.freeVariable('class');
assign = new Assign(new Literal(this.externalCtor), func);
}
} else {
if (!assign.variable["this"]) assign.variable = new Value(new Literal(name), [new Access(base, 'proto')]);
if (func instanceof Code && func.bound && !assign.variable["this"]) {
this.boundFuncs.push(base);
func.bound = false;
}
}
}
_results.push(assign);
}
return _results;
}).call(this);
return compact(exprs);
};
Class.prototype.walkBody = function(name, o) {
return this.traverseChildren(false, __bind(function(child) {
var exps, i, node, _len, _ref2;
if (child instanceof Class) return false;
if (child instanceof Block) {
_ref2 = exps = child.expressions;
for (i = 0, _len = _ref2.length; i < _len; i++) {
node = _ref2[i];
if (node instanceof Value && node.isObject(true)) exps[i] = this.addProperties(node, name, o);
}
return child.expressions = exps = flatten(exps);
}
}, this));
};
Class.prototype.ensureConstructor = function(name) {
if (!this.ctor) {
this.ctor = new Code;
if (this.parent) this.ctor.body.push(new Literal("" + name + ".__super__.constructor.apply(this, arguments)"));
if (this.externalCtor) this.ctor.body.push(new Literal("" + this.externalCtor + ".apply(this, arguments)"));
this.body.expressions.unshift(this.ctor);
}
this.ctor.ctor = this.ctor.name = name;
this.ctor.klass = null;
return this.ctor.noReturn = true;
};
Class.prototype.compileNode = function(o) {
var decl, klass, lname, name;
decl = this.determineName();
name = decl || this.name || '_Class';
if (name.reserved) name = "_" + name;
lname = new Literal(name);
this.setContext(name);
this.walkBody(name, o);
this.ensureConstructor(name);
if (this.parent) this.body.expressions.unshift(new Extends(lname, this.parent));
if (!(this.ctor instanceof Code)) this.body.expressions.unshift(this.ctor);
this.body.expressions.push(lname);
this.addBoundFunctions(o);
klass = new Parens(Closure.wrap(this.body), true);
if (this.variable) klass = new Assign(this.variable, klass);
return klass.compile(o);
};
return Class;
})();
exports.Assign = Assign = (function() {
__extends(Assign, Base);
function Assign(variable, value, context, options) {
this.variable = variable;
this.value = value;
this.context = context;
this.param = options && options.param;
}
Assign.prototype.children = ['variable', 'value'];
Assign.prototype.isStatement = function(o) {
return (o != null ? o.level : void 0) === LEVEL_TOP && (this.context != null) && __indexOf.call(this.context, "?") >= 0;
};
Assign.prototype.assigns = function(name) {
return this[this.context === 'object' ? 'value' : 'variable'].assigns(name);
};
Assign.prototype.unfoldSoak = function(o) {
return unfoldSoak(o, this, 'variable');
};
Assign.prototype.compileNode = function(o) {
var isValue, match, name, val, _ref2, _ref3, _ref4, _ref5;
if (isValue = this.variable instanceof Value) {
if (this.variable.isArray() || this.variable.isObject()) return this.compilePatternMatch(o);
if (this.variable.isSplice()) return this.compileSplice(o);
if ((_ref2 = this.context) === '||=' || _ref2 === '&&=' || _ref2 === '?=') return this.compileConditional(o);
}
name = this.variable.compile(o, LEVEL_LIST);
if (!(this.context || this.variable.isAssignable())) throw SyntaxError("\"" + (this.variable.compile(o)) + "\" cannot be assigned.");
if (!(this.context || isValue && (this.variable.namespaced || this.variable.hasProperties()))) {
if (this.param) {
o.scope.add(name, 'var');
} else {
o.scope.find(name);
}
}
if (this.value instanceof Code && (match = METHOD_DEF.exec(name))) {
if (match[1]) this.value.klass = match[1];
this.value.name = (_ref3 = (_ref4 = (_ref5 = match[2]) != null ? _ref5 : match[3]) != null ? _ref4 : match[4]) != null ? _ref3 : match[5];
}
val = this.value.compile(o, LEVEL_LIST);
if (this.context === 'object') return "" + name + ": " + val;
val = name + (" " + (this.context || '=') + " ") + val;
if (o.level <= LEVEL_LIST) {
return val;
} else {
return "(" + val + ")";
}
};
Assign.prototype.compilePatternMatch = function(o) {
var acc, assigns, code, i, idx, isObject, ivar, obj, objects, olen, ref, rest, splat, top, val, value, vvar, _len, _ref2, _ref3, _ref4, _ref5;
top = o.level === LEVEL_TOP;
value = this.value;
objects = this.variable.base.objects;
if (!(olen = objects.length)) {
code = value.compile(o);
if (o.level >= LEVEL_OP) {
return "(" + code + ")";
} else {
return code;
}
}
isObject = this.variable.isObject();
if (top && olen === 1 && !((obj = objects[0]) instanceof Splat)) {
if (obj instanceof Assign) {
_ref2 = obj, idx = _ref2.variable.base, obj = _ref2.value;
} else {
if (obj.base instanceof Parens) {
_ref3 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref3[0], idx = _ref3[1];
} else {
idx = isObject ? obj["this"] ? obj.properties[0].name : obj : new Literal(0);
}
}
acc = IDENTIFIER.test(idx.unwrap().value || 0);
value = new Value(value);
value.properties.push(new (acc ? Access : Index)(idx));
return new Assign(obj, value, null, {
param: this.param
}).compile(o, LEVEL_TOP);
}
vvar = value.compile(o, LEVEL_LIST);
assigns = [];
splat = false;
if (!IDENTIFIER.test(vvar) || this.variable.assigns(vvar)) {
assigns.push("" + (ref = o.scope.freeVariable('ref')) + " = " + vvar);
vvar = ref;
}
for (i = 0, _len = objects.length; i < _len; i++) {
obj = objects[i];
idx = i;
if (isObject) {
if (obj instanceof Assign) {
_ref4 = obj, idx = _ref4.variable.base, obj = _ref4.value;
} else {
if (obj.base instanceof Parens) {
_ref5 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref5[0], idx = _ref5[1];
} else {
idx = obj["this"] ? obj.properties[0].name : obj;
}
}
}
if (!splat && obj instanceof Splat) {
val = "" + olen + " <= " + vvar + ".length ? " + (utility('slice')) + ".call(" + vvar + ", " + i;
if (rest = olen - i - 1) {
ivar = o.scope.freeVariable('i');
val += ", " + ivar + " = " + vvar + ".length - " + rest + ") : (" + ivar + " = " + i + ", [])";
} else {
val += ") : []";
}
val = new Literal(val);
splat = "" + ivar + "++";
} else {
if (obj instanceof Splat) {
obj = obj.name.compile(o);
throw SyntaxError("multiple splats are disallowed in an assignment: " + obj + " ...");
}
if (typeof idx === 'number') {
idx = new Literal(splat || idx);
acc = false;
} else {
acc = isObject && IDENTIFIER.test(idx.unwrap().value || 0);
}
val = new Value(new Literal(vvar), [new (acc ? Access : Index)(idx)]);
}
assigns.push(new Assign(obj, val, null, {
param: this.param
}).compile(o, LEVEL_TOP));
}
if (!top) assigns.push(vvar);
code = assigns.join(', ');
if (o.level < LEVEL_LIST) {
return code;
} else {
return "(" + code + ")";
}
};
Assign.prototype.compileConditional = function(o) {
var left, rite, _ref2;
_ref2 = this.variable.cacheReference(o), left = _ref2[0], rite = _ref2[1];
if (__indexOf.call(this.context, "?") >= 0) o.isExistentialEquals = true;
return new Op(this.context.slice(0, -1), left, new Assign(rite, this.value, '=')).compile(o);
};
Assign.prototype.compileSplice = function(o) {
var code, exclusive, from, fromDecl, fromRef, name, to, valDef, valRef, _ref2, _ref3, _ref4;
_ref2 = this.variable.properties.pop().range, from = _ref2.from, to = _ref2.to, exclusive = _ref2.exclusive;
name = this.variable.compile(o);
_ref3 = (from != null ? from.cache(o, LEVEL_OP) : void 0) || ['0', '0'], fromDecl = _ref3[0], fromRef = _ref3[1];
if (to) {
if ((from != null ? from.isSimpleNumber() : void 0) && to.isSimpleNumber()) {
to = +to.compile(o) - +fromRef;
if (!exclusive) to += 1;
} else {
to = to.compile(o) + ' - ' + fromRef;
if (!exclusive) to += ' + 1';
}
} else {
to = "9e9";
}
_ref4 = this.value.cache(o, LEVEL_LIST), valDef = _ref4[0], valRef = _ref4[1];
code = "[].splice.apply(" + name + ", [" + fromDecl + ", " + to + "].concat(" + valDef + ")), " + valRef;
if (o.level > LEVEL_TOP) {
return "(" + code + ")";
} else {
return code;
}
};
return Assign;
})();
exports.Code = Code = (function() {
__extends(Code, Base);
function Code(params, body, tag) {
this.params = params || [];
this.body = body || new Block;
this.bound = tag === 'boundfunc';
if (this.bound) this.context = 'this';
}
Code.prototype.children = ['params', 'body'];
Code.prototype.isStatement = function() {
return !!this.ctor;
};
Code.prototype.jumps = NO;
Code.prototype.compileNode = function(o) {
var code, exprs, i, idt, lit, p, param, ref, splats, v, val, vars, wasEmpty, _i, _j, _k, _len, _len2, _len3, _len4, _ref2, _ref3, _ref4, _ref5;
o.scope = new Scope(o.scope, this.body, this);
o.scope.shared = del(o, 'sharedScope');
o.indent += TAB;
delete o.bare;
vars = [];
exprs = [];
_ref2 = this.params;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
param = _ref2[_i];
if (!param.splat) continue;
_ref3 = this.params;
for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) {
p = _ref3[_j];
if (p.name.value) o.scope.add(p.name.value, 'var', true);
}
splats = new Assign(new Value(new Arr((function() {
var _k, _len3, _ref4, _results;
_ref4 = this.params;
_results = [];
for (_k = 0, _len3 = _ref4.length; _k < _len3; _k++) {
p = _ref4[_k];
_results.push(p.asReference(o));
}
return _results;
}).call(this))), new Value(new Literal('arguments')));
break;
}
_ref4 = this.params;
for (_k = 0, _len3 = _ref4.length; _k < _len3; _k++) {
param = _ref4[_k];
if (param.isComplex()) {
val = ref = param.asReference(o);
if (param.value) val = new Op('?', ref, param.value);
exprs.push(new Assign(new Value(param.name), val, '=', {
param: true
}));
} else {
ref = param;
if (param.value) {
lit = new Literal(ref.name.value + ' == null');
val = new Assign(new Value(param.name), param.value, '=');
exprs.push(new If(lit, val));
}
}
if (!splats) vars.push(ref);
}
wasEmpty = this.body.isEmpty();
if (splats) exprs.unshift(splats);
if (exprs.length) (_ref5 = this.body.expressions).unshift.apply(_ref5, exprs);
if (!splats) {
for (i = 0, _len4 = vars.length; i < _len4; i++) {
v = vars[i];
o.scope.parameter(vars[i] = v.compile(o));
}
}
if (!(wasEmpty || this.noReturn)) this.body.makeReturn();
idt = o.indent;
code = 'function';
if (this.ctor) code += ' ' + this.name;
code += '(' + vars.join(', ') + ') {';
if (!this.body.isEmpty()) code += "\n" + (this.body.compileWithDeclarations(o)) + "\n" + this.tab;
code += '}';
if (this.ctor) return this.tab + code;
if (this.bound) return utility('bind') + ("(" + code + ", " + this.context + ")");
if (this.front || (o.level >= LEVEL_ACCESS)) {
return "(" + code + ")";
} else {
return code;
}
};
Code.prototype.traverseChildren = function(crossScope, func) {
if (crossScope) return Code.__super__.traverseChildren.call(this, crossScope, func);
};
return Code;
})();
exports.Param = Param = (function() {
__extends(Param, Base);
function Param(name, value, splat) {
this.name = name;
this.value = value;
this.splat = splat;
}
Param.prototype.children = ['name', 'value'];
Param.prototype.compile = function(o) {
return this.name.compile(o, LEVEL_LIST);
};
Param.prototype.asReference = function(o) {
var node;
if (this.reference) return this.reference;
node = this.name;
if (node["this"]) {
node = node.properties[0].name;
if (node.value.reserved) node = new Literal('_' + node.value);
} else if (node.isComplex()) {
node = new Literal(o.scope.freeVariable('arg'));
}
node = new Value(node);
if (this.splat) node = new Splat(node);
return this.reference = node;
};
Param.prototype.isComplex = function() {
return this.name.isComplex();
};
return Param;
})();
exports.Splat = Splat = (function() {
__extends(Splat, Base);
Splat.prototype.children = ['name'];
Splat.prototype.isAssignable = YES;
function Splat(name) {
this.name = name.compile ? name : new Literal(name);
}
Splat.prototype.assigns = function(name) {
return this.name.assigns(name);
};
Splat.prototype.compile = function(o) {
if (this.index != null) {
return this.compileParam(o);
} else {
return this.name.compile(o);
}
};
Splat.compileSplattedArray = function(o, list, apply) {
var args, base, code, i, index, node, _len;
index = -1;
while ((node = list[++index]) && !(node instanceof Splat)) {
continue;
}
if (index >= list.length) return '';
if (list.length === 1) {
code = list[0].compile(o, LEVEL_LIST);
if (apply) return code;
return "" + (utility('slice')) + ".call(" + code + ")";
}
args = list.slice(index);
for (i = 0, _len = args.length; i < _len; i++) {
node = args[i];
code = node.compile(o, LEVEL_LIST);
args[i] = node instanceof Splat ? "" + (utility('slice')) + ".call(" + code + ")" : "[" + code + "]";
}
if (index === 0) return args[0] + (".concat(" + (args.slice(1).join(', ')) + ")");
base = (function() {
var _i, _len2, _ref2, _results;
_ref2 = list.slice(0, index);
_results = [];
for (_i = 0, _len2 = _ref2.length; _i < _len2; _i++) {
node = _ref2[_i];
_results.push(node.compile(o, LEVEL_LIST));
}
return _results;
})();
return "[" + (base.join(', ')) + "].concat(" + (args.join(', ')) + ")";
};
return Splat;
})();
exports.While = While = (function() {
__extends(While, Base);
function While(condition, options) {
this.condition = (options != null ? options.invert : void 0) ? condition.invert() : condition;
this.guard = options != null ? options.guard : void 0;
}
While.prototype.children = ['condition', 'guard', 'body'];
While.prototype.isStatement = YES;
While.prototype.makeReturn = function() {
this.returns = true;
return this;
};
While.prototype.addBody = function(body) {
this.body = body;
return this;
};
While.prototype.jumps = function() {
var expressions, node, _i, _len;
expressions = this.body.expressions;
if (!expressions.length) return false;
for (_i = 0, _len = expressions.length; _i < _len; _i++) {
node = expressions[_i];
if (node.jumps({
loop: true
})) return node;
}
return false;
};
While.prototype.compileNode = function(o) {
var body, code, rvar, set;
o.indent += TAB;
set = '';
body = this.body;
if (body.isEmpty()) {
body = '';
} else {
if (o.level > LEVEL_TOP || this.returns) {
rvar = o.scope.freeVariable('results');
set = "" + this.tab + rvar + " = [];\n";
if (body) body = Push.wrap(rvar, body);
}
if (this.guard) {
if (body.expressions.length > 1) {
body.expressions.unshift(new If((new Parens(this.guard)).invert(), new Literal("continue")));
} else {
if (this.guard) body = Block.wrap([new If(this.guard, body)]);
}
}
body = "\n" + (body.compile(o, LEVEL_TOP)) + "\n" + this.tab;
}
code = set + this.tab + ("while (" + (this.condition.compile(o, LEVEL_PAREN)) + ") {" + body + "}");
if (this.returns) code += "\n" + this.tab + "return " + rvar + ";";
return code;
};
return While;
})();
exports.Op = Op = (function() {
var CONVERSIONS, INVERSIONS;
__extends(Op, Base);
function Op(op, first, second, flip) {
var call;
if (op === 'in') return new In(first, second);
if (op === 'do') {
call = new Call(first, first.params || []);
call["do"] = true;
return call;
}
if (op === 'new') {
if (first instanceof Call && !first["do"] && !first.isNew) return first.newInstance();
if (first instanceof Code && first.bound || first["do"]) first = new Parens(first);
}
this.operator = CONVERSIONS[op] || op;
this.first = first;
this.second = second;
this.flip = !!flip;
return this;
}
CONVERSIONS = {
'==': '===',
'!=': '!==',
'of': 'in'
};
INVERSIONS = {
'!==': '===',
'===': '!=='
};
Op.prototype.children = ['first', 'second'];
Op.prototype.isSimpleNumber = NO;
Op.prototype.isUnary = function() {
return !this.second;
};
Op.prototype.isComplex = function() {
var _ref2;
return !(this.isUnary() && ((_ref2 = this.operator) === '+' || _ref2 === '-')) || this.first.isComplex();
};
Op.prototype.isChainable = function() {
var _ref2;
return (_ref2 = this.operator) === '<' || _ref2 === '>' || _ref2 === '>=' || _ref2 === '<=' || _ref2 === '===' || _ref2 === '!==';
};
Op.prototype.invert = function() {
var allInvertable, curr, fst, op, _ref2;
if (this.isChainable() && this.first.isChainable()) {
allInvertable = true;
curr = this;
while (curr && curr.operator) {
allInvertable && (allInvertable = curr.operator in INVERSIONS);
curr = curr.first;
}
if (!allInvertable) return new Parens(this).invert();
curr = this;
while (curr && curr.operator) {
curr.invert = !curr.invert;
curr.operator = INVERSIONS[curr.operator];
curr = curr.first;
}
return this;
} else if (op = INVERSIONS[this.operator]) {
this.operator = op;
if (this.first.unwrap() instanceof Op) this.first.invert();
return this;
} else if (this.second) {
return new Parens(this).invert();
} else if (this.operator === '!' && (fst = this.first.unwrap()) instanceof Op && ((_ref2 = fst.operator) === '!' || _ref2 === 'in' || _ref2 === 'instanceof')) {
return fst;
} else {
return new Op('!', this);
}
};
Op.prototype.unfoldSoak = function(o) {
var _ref2;
return ((_ref2 = this.operator) === '++' || _ref2 === '--' || _ref2 === 'delete') && unfoldSoak(o, this, 'first');
};
Op.prototype.compileNode = function(o) {
var code;
if (this.isUnary()) return this.compileUnary(o);
if (this.isChainable() && this.first.isChainable()) return this.compileChain(o);
if (this.operator === '?') return this.compileExistence(o);
this.first.front = this.front;
code = this.first.compile(o, LEVEL_OP) + ' ' + this.operator + ' ' + this.second.compile(o, LEVEL_OP);
if (o.level <= LEVEL_OP) {
return code;
} else {
return "(" + code + ")";
}
};
Op.prototype.compileChain = function(o) {
var code, fst, shared, _ref2;
_ref2 = this.first.second.cache(o), this.first.second = _ref2[0], shared = _ref2[1];
fst = this.first.compile(o, LEVEL_OP);
code = "" + fst + " " + (this.invert ? '&&' : '||') + " " + (shared.compile(o)) + " " + this.operator + " " + (this.second.compile(o, LEVEL_OP));
return "(" + code + ")";
};
Op.prototype.compileExistence = function(o) {
var fst, ref;
if (this.first.isComplex()) {
ref = new Literal(o.scope.freeVariable('ref'));
fst = new Parens(new Assign(ref, this.first));
} else {
fst = this.first;
ref = fst;
}
return new If(new Existence(fst), ref, {
type: 'if'
}).addElse(this.second).compile(o);
};
Op.prototype.compileUnary = function(o) {
var op, parts;
parts = [op = this.operator];
if ((op === 'new' || op === 'typeof' || op === 'delete') || (op === '+' || op === '-') && this.first instanceof Op && this.first.operator === op) parts.push(' ');
if (op === 'new' && this.first.isStatement(o)) this.first = new Parens(this.first);
parts.push(this.first.compile(o, LEVEL_OP));
if (this.flip) parts.reverse();
return parts.join('');
};
Op.prototype.toString = function(idt) {
return Op.__super__.toString.call(this, idt, this.constructor.name + ' ' + this.operator);
};
return Op;
})();
exports.In = In = (function() {
__extends(In, Base);
function In(object, array) {
this.object = object;
this.array = array;
}
In.prototype.children = ['object', 'array'];
In.prototype.invert = NEGATE;
In.prototype.compileNode = function(o) {
var hasSplat, obj, _i, _len, _ref2;
if (this.array instanceof Value && this.array.isArray()) {
_ref2 = this.array.base.objects;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
obj = _ref2[_i];
if (!(obj instanceof Splat)) continue;
hasSplat = true;
break;
}
if (!hasSplat) return this.compileOrTest(o);
}
return this.compileLoopTest(o);
};
In.prototype.compileOrTest = function(o) {
var cmp, cnj, i, item, ref, sub, tests, _ref2, _ref3;
_ref2 = this.object.cache(o, LEVEL_OP), sub = _ref2[0], ref = _ref2[1];
_ref3 = this.negated ? [' !== ', ' && '] : [' === ', ' || '], cmp = _ref3[0], cnj = _ref3[1];
tests = (function() {
var _len, _ref4, _results;
_ref4 = this.array.base.objects;
_results = [];
for (i = 0, _len = _ref4.length; i < _len; i++) {
item = _ref4[i];
_results.push((i ? ref : sub) + cmp + item.compile(o, LEVEL_ACCESS));
}
return _results;
}).call(this);
if (tests.length === 0) return 'false';
tests = tests.join(cnj);
if (o.level < LEVEL_OP) {
return tests;
} else {
return "(" + tests + ")";
}
};
In.prototype.compileLoopTest = function(o) {
var code, ref, sub, _ref2;
_ref2 = this.object.cache(o, LEVEL_LIST), sub = _ref2[0], ref = _ref2[1];
code = utility('indexOf') + (".call(" + (this.array.compile(o, LEVEL_LIST)) + ", " + ref + ") ") + (this.negated ? '< 0' : '>= 0');
if (sub === ref) return code;
code = sub + ', ' + code;
if (o.level < LEVEL_LIST) {
return code;
} else {
return "(" + code + ")";
}
};
In.prototype.toString = function(idt) {
return In.__super__.toString.call(this, idt, this.constructor.name + (this.negated ? '!' : ''));
};
return In;
})();
exports.Try = Try = (function() {
__extends(Try, Base);
function Try(attempt, error, recovery, ensure) {
this.attempt = attempt;
this.error = error;
this.recovery = recovery;
this.ensure = ensure;
}
Try.prototype.children = ['attempt', 'recovery', 'ensure'];
Try.prototype.isStatement = YES;
Try.prototype.jumps = function(o) {
var _ref2;
return this.attempt.jumps(o) || ((_ref2 = this.recovery) != null ? _ref2.jumps(o) : void 0);
};
Try.prototype.makeReturn = function() {
if (this.attempt) this.attempt = this.attempt.makeReturn();
if (this.recovery) this.recovery = this.recovery.makeReturn();
return this;
};
Try.prototype.compileNode = function(o) {
var catchPart, errorPart;
o.indent += TAB;
errorPart = this.error ? " (" + (this.error.compile(o)) + ") " : ' ';
catchPart = this.recovery ? (o.scope.add(this.error.value, 'param'), " catch" + errorPart + "{\n" + (this.recovery.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}") : !(this.ensure || this.recovery) ? ' catch (_e) {}' : void 0;
return ("" + this.tab + "try {\n" + (this.attempt.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}" + (catchPart || '')) + (this.ensure ? " finally {\n" + (this.ensure.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}" : '');
};
return Try;
})();
exports.Throw = Throw = (function() {
__extends(Throw, Base);
function Throw(expression) {
this.expression = expression;
}
Throw.prototype.children = ['expression'];
Throw.prototype.isStatement = YES;
Throw.prototype.jumps = NO;
Throw.prototype.makeReturn = THIS;
Throw.prototype.compileNode = function(o) {
return this.tab + ("throw " + (this.expression.compile(o)) + ";");
};
return Throw;
})();
exports.Existence = Existence = (function() {
__extends(Existence, Base);
function Existence(expression) {
this.expression = expression;
}
Existence.prototype.children = ['expression'];
Existence.prototype.invert = NEGATE;
Existence.prototype.compileNode = function(o) {
var cmp, cnj, code, _ref2;
code = this.expression.compile(o, LEVEL_OP);
if (IDENTIFIER.test(code) && !o.scope.check(code)) {
_ref2 = this.negated ? ['===', '||'] : ['!==', '&&'], cmp = _ref2[0], cnj = _ref2[1];
code = "typeof " + code + " " + cmp + " \"undefined\" " + cnj + " " + code + " " + cmp + " null";
} else {
code = "" + code + " " + (this.negated ? '==' : '!=') + " null";
}
if (o.level <= LEVEL_COND) {
return code;
} else {
return "(" + code + ")";
}
};
return Existence;
})();
exports.Parens = Parens = (function() {
__extends(Parens, Base);
function Parens(body) {
this.body = body;
}
Parens.prototype.children = ['body'];
Parens.prototype.unwrap = function() {
return this.body;
};
Parens.prototype.isComplex = function() {
return this.body.isComplex();
};
Parens.prototype.makeReturn = function() {
return this.body.makeReturn();
};
Parens.prototype.compileNode = function(o) {
var bare, code, expr;
expr = this.body.unwrap();
if (expr instanceof Value && expr.isAtomic()) {
expr.front = this.front;
return expr.compile(o);
}
code = expr.compile(o, LEVEL_PAREN);
bare = o.level < LEVEL_OP && (expr instanceof Op || expr instanceof Call || (expr instanceof For && expr.returns));
if (bare) {
return code;
} else {
return "(" + code + ")";
}
};
return Parens;
})();
exports.For = For = (function() {
__extends(For, Base);
function For(body, source) {
var _ref2;
this.source = source.source, this.guard = source.guard, this.step = source.step, this.name = source.name, this.index = source.index;
this.body = Block.wrap([body]);
this.own = !!source.own;
this.object = !!source.object;
if (this.object) _ref2 = [this.index, this.name], this.name = _ref2[0], this.index = _ref2[1];
if (this.index instanceof Value) throw SyntaxError('index cannot be a pattern matching expression');
this.range = this.source instanceof Value && this.source.base instanceof Range && !this.source.properties.length;
this.pattern = this.name instanceof Value;
if (this.range && this.index) throw SyntaxError('indexes do not apply to range loops');
if (this.range && this.pattern) throw SyntaxError('cannot pattern match over range loops');
this.returns = false;
}
For.prototype.children = ['body', 'source', 'guard', 'step'];
For.prototype.isStatement = YES;
For.prototype.jumps = While.prototype.jumps;
For.prototype.makeReturn = function() {
this.returns = true;
return this;
};
For.prototype.compileNode = function(o) {
var body, defPart, forPart, forVarPart, guardPart, idt1, index, ivar, lastJumps, lvar, name, namePart, ref, resultPart, returnResult, rvar, scope, source, stepPart, stepvar, svar, varPart, _ref2;
body = Block.wrap([this.body]);
lastJumps = (_ref2 = last(body.expressions)) != null ? _ref2.jumps() : void 0;
if (lastJumps && lastJumps instanceof Return) this.returns = false;
source = this.range ? this.source.base : this.source;
scope = o.scope;
name = this.name && this.name.compile(o, LEVEL_LIST);
index = this.index && this.index.compile(o, LEVEL_LIST);
if (name && !this.pattern) {
scope.find(name, {
immediate: true
});
}
if (index) {
scope.find(index, {
immediate: true
});
}
if (this.returns) rvar = scope.freeVariable('results');
ivar = (this.range ? name : index) || scope.freeVariable('i');
if (this.step && !this.range) stepvar = scope.freeVariable("step");
if (this.pattern) name = ivar;
varPart = '';
guardPart = '';
defPart = '';
idt1 = this.tab + TAB;
if (this.range) {
forPart = source.compile(merge(o, {
index: ivar,
step: this.step
}));
} else {
svar = this.source.compile(o, LEVEL_LIST);
if ((name || this.own) && !IDENTIFIER.test(svar)) {
defPart = "" + this.tab + (ref = scope.freeVariable('ref')) + " = " + svar + ";\n";
svar = ref;
}
if (name && !this.pattern) namePart = "" + name + " = " + svar + "[" + ivar + "]";
if (!this.object) {
lvar = scope.freeVariable('len');
forVarPart = ("" + ivar + " = 0, " + lvar + " = " + svar + ".length") + (this.step ? ", " + stepvar + " = " + (this.step.compile(o, LEVEL_OP)) : '');
stepPart = this.step ? "" + ivar + " += " + stepvar : "" + ivar + "++";
forPart = "" + forVarPart + "; " + ivar + " < " + lvar + "; " + stepPart;
}
}
if (this.returns) {
resultPart = "" + this.tab + rvar + " = [];\n";
returnResult = "\n" + this.tab + "return " + rvar + ";";
body = Push.wrap(rvar, body);
}
if (this.guard) {
if (body.expressions.length > 1) {
body.expressions.unshift(new If((new Parens(this.guard)).invert(), new Literal("continue")));
} else {
if (this.guard) body = Block.wrap([new If(this.guard, body)]);
}
}
if (this.pattern) body.expressions.unshift(new Assign(this.name, new Literal("" + svar + "[" + ivar + "]")));
defPart += this.pluckDirectCall(o, body);
if (namePart) varPart = "\n" + idt1 + namePart + ";";
if (this.object) {
forPart = "" + ivar + " in " + svar;
if (this.own) guardPart = "\n" + idt1 + "if (!" + (utility('hasProp')) + ".call(" + svar + ", " + ivar + ")) continue;";
}
body = body.compile(merge(o, {
indent: idt1
}), LEVEL_TOP);
if (body) body = '\n' + body + '\n';
return "" + defPart + (resultPart || '') + this.tab + "for (" + forPart + ") {" + guardPart + varPart + body + this.tab + "}" + (returnResult || '');
};
For.prototype.pluckDirectCall = function(o, body) {
var base, defs, expr, fn, idx, ref, val, _len, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7;
defs = '';
_ref2 = body.expressions;
for (idx = 0, _len = _ref2.length; idx < _len; idx++) {
expr = _ref2[idx];
expr = expr.unwrapAll();
if (!(expr instanceof Call)) continue;
val = expr.variable.unwrapAll();
if (!((val instanceof Code) || (val instanceof Value && ((_ref3 = val.base) != null ? _ref3.unwrapAll() : void 0) instanceof Code && val.properties.length === 1 && ((_ref4 = (_ref5 = val.properties[0].name) != null ? _ref5.value : void 0) === 'call' || _ref4 === 'apply')))) continue;
fn = ((_ref6 = val.base) != null ? _ref6.unwrapAll() : void 0) || val;
ref = new Literal(o.scope.freeVariable('fn'));
base = new Value(ref);
if (val.base) _ref7 = [base, val], val.base = _ref7[0], base = _ref7[1];
body.expressions[idx] = new Call(base, expr.args);
defs += this.tab + new Assign(ref, fn).compile(o, LEVEL_TOP) + ';\n';
}
return defs;
};
return For;
})();
exports.Switch = Switch = (function() {
__extends(Switch, Base);
function Switch(subject, cases, otherwise) {
this.subject = subject;
this.cases = cases;
this.otherwise = otherwise;
}
Switch.prototype.children = ['subject', 'cases', 'otherwise'];
Switch.prototype.isStatement = YES;
Switch.prototype.jumps = function(o) {
var block, conds, _i, _len, _ref2, _ref3, _ref4;
if (o == null) {
o = {
block: true
};
}
_ref2 = this.cases;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
_ref3 = _ref2[_i], conds = _ref3[0], block = _ref3[1];
if (block.jumps(o)) return block;
}
return (_ref4 = this.otherwise) != null ? _ref4.jumps(o) : void 0;
};
Switch.prototype.makeReturn = function() {
var pair, _i, _len, _ref2, _ref3;
_ref2 = this.cases;
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
pair = _ref2[_i];
pair[1].makeReturn();
}
if ((_ref3 = this.otherwise) != null) _ref3.makeReturn();
return this;
};
Switch.prototype.compileNode = function(o) {
var block, body, code, cond, conditions, expr, i, idt1, idt2, _i, _len, _len2, _ref2, _ref3, _ref4, _ref5;
idt1 = o.indent + TAB;
idt2 = o.indent = idt1 + TAB;
code = this.tab + ("switch (" + (((_ref2 = this.subject) != null ? _ref2.compile(o, LEVEL_PAREN) : void 0) || false) + ") {\n");
_ref3 = this.cases;
for (i = 0, _len = _ref3.length; i < _len; i++) {
_ref4 = _ref3[i], conditions = _ref4[0], block = _ref4[1];
_ref5 = flatten([conditions]);
for (_i = 0, _len2 = _ref5.length; _i < _len2; _i++) {
cond = _ref5[_i];
if (!this.subject) cond = cond.invert();
code += idt1 + ("case " + (cond.compile(o, LEVEL_PAREN)) + ":\n");
}
if (body = block.compile(o, LEVEL_TOP)) code += body + '\n';
if (i === this.cases.length - 1 && !this.otherwise) break;
expr = this.lastNonComment(block.expressions);
if (expr instanceof Return || (expr instanceof Literal && expr.jumps() && expr.value !== 'debugger')) continue;
code += idt2 + 'break;\n';
}
if (this.otherwise && this.otherwise.expressions.length) code += idt1 + ("default:\n" + (this.otherwise.compile(o, LEVEL_TOP)) + "\n");
return code + this.tab + '}';
};
return Switch;
})();
exports.If = If = (function() {
__extends(If, Base);
function If(condition, body, options) {
this.body = body;
if (options == null) options = {};
this.condition = options.type === 'unless' ? condition.invert() : condition;
this.elseBody = null;
this.isChain = false;
this.soak = options.soak;
}
If.prototype.children = ['condition', 'body', 'elseBody'];
If.prototype.bodyNode = function() {
var _ref2;
return (_ref2 = this.body) != null ? _ref2.unwrap() : void 0;
};
If.prototype.elseBodyNode = function() {
var _ref2;
return (_ref2 = this.elseBody) != null ? _ref2.unwrap() : void 0;
};
If.prototype.addElse = function(elseBody) {
if (this.isChain) {
this.elseBodyNode().addElse(elseBody);
} else {
this.isChain = elseBody instanceof If;
this.elseBody = this.ensureBlock(elseBody);
}
return this;
};
If.prototype.isStatement = function(o) {
var _ref2;
return (o != null ? o.level : void 0) === LEVEL_TOP || this.bodyNode().isStatement(o) || ((_ref2 = this.elseBodyNode()) != null ? _ref2.isStatement(o) : void 0);
};
If.prototype.jumps = function(o) {
var _ref2;
return this.body.jumps(o) || ((_ref2 = this.elseBody) != null ? _ref2.jumps(o) : void 0);
};
If.prototype.compileNode = function(o) {
if (this.isStatement(o)) {
return this.compileStatement(o);
} else {
return this.compileExpression(o);
}
};
If.prototype.makeReturn = function() {
this.body && (this.body = new Block([this.body.makeReturn()]));
this.elseBody && (this.elseBody = new Block([this.elseBody.makeReturn()]));
return this;
};
If.prototype.ensureBlock = function(node) {
if (node instanceof Block) {
return node;
} else {
return new Block([node]);
}
};
If.prototype.compileStatement = function(o) {
var body, bodyc, child, cond, exeq, ifPart;
child = del(o, 'chainChild');
exeq = del(o, 'isExistentialEquals');
if (exeq) {
return new If(this.condition.invert(), this.elseBodyNode(), {
type: 'if'
}).compile(o);
}
cond = this.condition.compile(o, LEVEL_PAREN);
o.indent += TAB;
body = this.ensureBlock(this.body);
bodyc = body.compile(o);
if (body.expressions.length === 1 && !this.elseBody && !child && bodyc && -1 === bodyc.indexOf('\n')) return "" + this.tab + "if (" + cond + ") " + (bodyc.replace(/^\s+/, ''));
if (bodyc) bodyc = "\n" + bodyc + "\n" + this.tab;
ifPart = "if (" + cond + ") {" + bodyc + "}";
if (!child) ifPart = this.tab + ifPart;
if (!this.elseBody) return ifPart;
return ifPart + ' else ' + (this.isChain ? (o.indent = this.tab, o.chainChild = true, this.elseBody.unwrap().compile(o, LEVEL_TOP)) : "{\n" + (this.elseBody.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}");
};
If.prototype.compileExpression = function(o) {
var alt, body, code, cond;
cond = this.condition.compile(o, LEVEL_COND);
body = this.bodyNode().compile(o, LEVEL_LIST);
alt = this.elseBodyNode() ? this.elseBodyNode().compile(o, LEVEL_LIST) : 'void 0';
code = "" + cond + " ? " + body + " : " + alt;
if (o.level >= LEVEL_COND) {
return "(" + code + ")";
} else {
return code;
}
};
If.prototype.unfoldSoak = function() {
return this.soak && this;
};
return If;
})();
Push = {
wrap: function(name, exps) {
if (exps.isEmpty() || last(exps.expressions).jumps()) return exps;
return exps.push(new Call(new Value(new Literal(name), [new Access(new Literal('push'))]), [exps.pop()]));
}
};
Closure = {
wrap: function(expressions, statement, noReturn) {
var args, call, func, mentionsArgs, meth;
if (expressions.jumps()) return expressions;
func = new Code([], Block.wrap([expressions]));
args = [];
if ((mentionsArgs = expressions.contains(this.literalArgs)) || expressions.contains(this.literalThis)) {
meth = new Literal(mentionsArgs ? 'apply' : 'call');
args = [new Literal('this')];
if (mentionsArgs) args.push(new Literal('arguments'));
func = new Value(func, [new Access(meth)]);
}
func.noReturn = noReturn;
call = new Call(func, args);
if (statement) {
return Block.wrap([call]);
} else {
return call;
}
},
literalArgs: function(node) {
return node instanceof Literal && node.value === 'arguments' && !node.asKey;
},
literalThis: function(node) {
return (node instanceof Literal && node.value === 'this' && !node.asKey) || (node instanceof Code && node.bound);
}
};
unfoldSoak = function(o, parent, name) {
var ifn;
if (!(ifn = parent[name].unfoldSoak(o))) return;
parent[name] = ifn.body;
ifn.body = new Value(parent);
return ifn;
};
UTILITIES = {
"extends": 'function(child, parent) {\n for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; }\n function ctor() { this.constructor = child; }\n ctor.prototype = parent.prototype;\n child.prototype = new ctor;\n child.__super__ = parent.prototype;\n return child;\n}',
bind: 'function(fn, me){ return function(){ return fn.apply(me, arguments); }; }',
indexOf: 'Array.prototype.indexOf || function(item) {\n for (var i = 0, l = this.length; i < l; i++) {\n if (this[i] === item) return i;\n }\n return -1;\n}',
hasProp: 'Object.prototype.hasOwnProperty',
slice: 'Array.prototype.slice'
};
LEVEL_TOP = 1;
LEVEL_PAREN = 2;
LEVEL_LIST = 3;
LEVEL_COND = 4;
LEVEL_OP = 5;
LEVEL_ACCESS = 6;
TAB = ' ';
IDENTIFIER_STR = "[$A-Za-z_\\x7f-\\uffff][$\\w\\x7f-\\uffff]*";
IDENTIFIER = RegExp("^" + IDENTIFIER_STR + "$");
SIMPLENUM = /^[+-]?\d+$/;
METHOD_DEF = RegExp("^(?:(" + IDENTIFIER_STR + ")\\.prototype(?:\\.(" + IDENTIFIER_STR + ")|\\[(\"(?:[^\\\\\"\\r\\n]|\\\\.)*\"|'(?:[^\\\\'\\r\\n]|\\\\.)*')\\]|\\[(0x[\\da-fA-F]+|\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\]))|(" + IDENTIFIER_STR + ")$");
IS_STRING = /^['"]/;
utility = function(name) {
var ref;
ref = "__" + name;
Scope.root.assign(ref, UTILITIES[name]);
return ref;
};
multident = function(code, tab) {
code = code.replace(/\n/g, '$&' + tab);
return code.replace(/\s+$/, '');
};
}).call(this);
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