/lib/coffee-script/nodes.js
http://github.com/jashkenas/coffee-script · JavaScript · 3485 lines · 3036 code · 448 blank · 1 comment · 812 complexity · a514c6d377b241ff5302069b9659a7d1 MD5 · raw file
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- // Generated by CoffeeScript 1.10.0
- (function() {
- var Access, Arr, Assign, Base, Block, BooleanLiteral, Call, Class, Code, CodeFragment, Comment, Existence, Expansion, Extends, For, IdentifierLiteral, If, In, Index, InfinityLiteral, JS_FORBIDDEN, LEVEL_ACCESS, LEVEL_COND, LEVEL_LIST, LEVEL_OP, LEVEL_PAREN, LEVEL_TOP, Literal, NEGATE, NO, NaNLiteral, NullLiteral, NumberLiteral, Obj, Op, Param, Parens, PassthroughLiteral, PropertyName, Range, RegexLiteral, RegexWithInterpolations, Return, SIMPLENUM, Scope, Slice, Splat, StatementLiteral, StringLiteral, StringWithInterpolations, SuperCall, Switch, TAB, THIS, ThisLiteral, Throw, Try, UTILITIES, UndefinedLiteral, Value, While, YES, YieldReturn, addLocationDataFn, compact, del, ends, extend, flatten, fragmentsToText, isComplexOrAssignable, isLiteralArguments, isLiteralThis, isUnassignable, locationDataToString, merge, multident, ref1, ref2, some, starts, throwSyntaxError, unfoldSoak, utility,
- extend1 = 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; },
- hasProp = {}.hasOwnProperty,
- indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; },
- slice = [].slice;
- Error.stackTraceLimit = 2e308;
- Scope = require('./scope').Scope;
- ref1 = require('./lexer'), isUnassignable = ref1.isUnassignable, JS_FORBIDDEN = ref1.JS_FORBIDDEN;
- ref2 = require('./helpers'), compact = ref2.compact, flatten = ref2.flatten, extend = ref2.extend, merge = ref2.merge, del = ref2.del, starts = ref2.starts, ends = ref2.ends, some = ref2.some, addLocationDataFn = ref2.addLocationDataFn, locationDataToString = ref2.locationDataToString, throwSyntaxError = ref2.throwSyntaxError;
- exports.extend = extend;
- exports.addLocationDataFn = addLocationDataFn;
- YES = function() {
- return true;
- };
- NO = function() {
- return false;
- };
- THIS = function() {
- return this;
- };
- NEGATE = function() {
- this.negated = !this.negated;
- return this;
- };
- exports.CodeFragment = CodeFragment = (function() {
- function CodeFragment(parent, code) {
- var ref3;
- this.code = "" + code;
- this.locationData = parent != null ? parent.locationData : void 0;
- this.type = (parent != null ? (ref3 = parent.constructor) != null ? ref3.name : void 0 : void 0) || 'unknown';
- }
- CodeFragment.prototype.toString = function() {
- return "" + this.code + (this.locationData ? ": " + locationDataToString(this.locationData) : '');
- };
- return CodeFragment;
- })();
- fragmentsToText = function(fragments) {
- var fragment;
- return ((function() {
- var j, len1, results;
- results = [];
- for (j = 0, len1 = fragments.length; j < len1; j++) {
- fragment = fragments[j];
- results.push(fragment.code);
- }
- return results;
- })()).join('');
- };
- exports.Base = Base = (function() {
- function Base() {}
- Base.prototype.compile = function(o, lvl) {
- return fragmentsToText(this.compileToFragments(o, lvl));
- };
- Base.prototype.compileToFragments = 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) {
- var args, argumentsNode, func, jumpNode, meth, parts, ref3;
- if (jumpNode = this.jumps()) {
- jumpNode.error('cannot use a pure statement in an expression');
- }
- o.sharedScope = true;
- func = new Code([], Block.wrap([this]));
- args = [];
- if ((argumentsNode = this.contains(isLiteralArguments)) || this.contains(isLiteralThis)) {
- args = [new ThisLiteral];
- if (argumentsNode) {
- meth = 'apply';
- args.push(new IdentifierLiteral('arguments'));
- } else {
- meth = 'call';
- }
- func = new Value(func, [new Access(new PropertyName(meth))]);
- }
- parts = (new Call(func, args)).compileNode(o);
- if (func.isGenerator || ((ref3 = func.base) != null ? ref3.isGenerator : void 0)) {
- parts.unshift(this.makeCode("(yield* "));
- parts.push(this.makeCode(")"));
- }
- return parts;
- };
- Base.prototype.cache = function(o, level, isComplex) {
- var complex, ref, sub;
- complex = isComplex != null ? isComplex(this) : this.isComplex();
- if (complex) {
- ref = new IdentifierLiteral(o.scope.freeVariable('ref'));
- sub = new Assign(ref, this);
- if (level) {
- return [sub.compileToFragments(o, level), [this.makeCode(ref.value)]];
- } else {
- return [sub, ref];
- }
- } else {
- ref = level ? this.compileToFragments(o, level) : this;
- return [ref, ref];
- }
- };
- Base.prototype.cacheToCodeFragments = function(cacheValues) {
- return [fragmentsToText(cacheValues[0]), fragmentsToText(cacheValues[1])];
- };
- Base.prototype.makeReturn = function(res) {
- var me;
- me = this.unwrapAll();
- if (res) {
- return new Call(new Literal(res + ".push"), [me]);
- } else {
- return new Return(me);
- }
- };
- Base.prototype.contains = function(pred) {
- var node;
- node = void 0;
- this.traverseChildren(false, function(n) {
- if (pred(n)) {
- node = n;
- return false;
- }
- });
- return node;
- };
- 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, j, k, len1, len2, ref3, ref4;
- if (!this.children) {
- return this;
- }
- ref3 = this.children;
- for (j = 0, len1 = ref3.length; j < len1; j++) {
- attr = ref3[j];
- if (this[attr]) {
- ref4 = flatten([this[attr]]);
- for (k = 0, len2 = ref4.length; k < len2; k++) {
- child = ref4[k];
- if (func(child) === false) {
- return this;
- }
- }
- }
- }
- return this;
- };
- Base.prototype.traverseChildren = function(crossScope, func) {
- return this.eachChild(function(child) {
- var recur;
- recur = func(child);
- if (recur !== 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.isNumber = NO;
- Base.prototype.unwrap = THIS;
- Base.prototype.unfoldSoak = NO;
- Base.prototype.assigns = NO;
- Base.prototype.updateLocationDataIfMissing = function(locationData) {
- if (this.locationData) {
- return this;
- }
- this.locationData = locationData;
- return this.eachChild(function(child) {
- return child.updateLocationDataIfMissing(locationData);
- });
- };
- Base.prototype.error = function(message) {
- return throwSyntaxError(message, this.locationData);
- };
- Base.prototype.makeCode = function(code) {
- return new CodeFragment(this, code);
- };
- Base.prototype.wrapInBraces = function(fragments) {
- return [].concat(this.makeCode('('), fragments, this.makeCode(')'));
- };
- Base.prototype.joinFragmentArrays = function(fragmentsList, joinStr) {
- var answer, fragments, i, j, len1;
- answer = [];
- for (i = j = 0, len1 = fragmentsList.length; j < len1; i = ++j) {
- fragments = fragmentsList[i];
- if (i) {
- answer.push(this.makeCode(joinStr));
- }
- answer = answer.concat(fragments);
- }
- return answer;
- };
- return Base;
- })();
- exports.Block = Block = (function(superClass1) {
- extend1(Block, superClass1);
- 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, j, len1, ref3;
- ref3 = this.expressions;
- for (j = 0, len1 = ref3.length; j < len1; j++) {
- exp = ref3[j];
- if (exp.isStatement(o)) {
- return true;
- }
- }
- return false;
- };
- Block.prototype.jumps = function(o) {
- var exp, j, jumpNode, len1, ref3;
- ref3 = this.expressions;
- for (j = 0, len1 = ref3.length; j < len1; j++) {
- exp = ref3[j];
- if (jumpNode = exp.jumps(o)) {
- return jumpNode;
- }
- }
- };
- Block.prototype.makeReturn = function(res) {
- var expr, len;
- len = this.expressions.length;
- while (len--) {
- expr = this.expressions[len];
- if (!(expr instanceof Comment)) {
- this.expressions[len] = expr.makeReturn(res);
- if (expr instanceof Return && !expr.expression) {
- this.expressions.splice(len, 1);
- }
- break;
- }
- }
- return this;
- };
- Block.prototype.compileToFragments = function(o, level) {
- if (o == null) {
- o = {};
- }
- if (o.scope) {
- return Block.__super__.compileToFragments.call(this, o, level);
- } else {
- return this.compileRoot(o);
- }
- };
- Block.prototype.compileNode = function(o) {
- var answer, compiledNodes, fragments, index, j, len1, node, ref3, top;
- this.tab = o.indent;
- top = o.level === LEVEL_TOP;
- compiledNodes = [];
- ref3 = this.expressions;
- for (index = j = 0, len1 = ref3.length; j < len1; index = ++j) {
- node = ref3[index];
- node = node.unwrapAll();
- node = node.unfoldSoak(o) || node;
- if (node instanceof Block) {
- compiledNodes.push(node.compileNode(o));
- } else if (top) {
- node.front = true;
- fragments = node.compileToFragments(o);
- if (!node.isStatement(o)) {
- fragments.unshift(this.makeCode("" + this.tab));
- fragments.push(this.makeCode(";"));
- }
- compiledNodes.push(fragments);
- } else {
- compiledNodes.push(node.compileToFragments(o, LEVEL_LIST));
- }
- }
- if (top) {
- if (this.spaced) {
- return [].concat(this.joinFragmentArrays(compiledNodes, '\n\n'), this.makeCode("\n"));
- } else {
- return this.joinFragmentArrays(compiledNodes, '\n');
- }
- }
- if (compiledNodes.length) {
- answer = this.joinFragmentArrays(compiledNodes, ', ');
- } else {
- answer = [this.makeCode("void 0")];
- }
- if (compiledNodes.length > 1 && o.level >= LEVEL_LIST) {
- return this.wrapInBraces(answer);
- } else {
- return answer;
- }
- };
- Block.prototype.compileRoot = function(o) {
- var exp, fragments, i, j, len1, name, prelude, preludeExps, ref3, ref4, rest;
- o.indent = o.bare ? '' : TAB;
- o.level = LEVEL_TOP;
- this.spaced = true;
- o.scope = new Scope(null, this, null, (ref3 = o.referencedVars) != null ? ref3 : []);
- ref4 = o.locals || [];
- for (j = 0, len1 = ref4.length; j < len1; j++) {
- name = ref4[j];
- o.scope.parameter(name);
- }
- prelude = [];
- if (!o.bare) {
- preludeExps = (function() {
- var k, len2, ref5, results;
- ref5 = this.expressions;
- results = [];
- for (i = k = 0, len2 = ref5.length; k < len2; i = ++k) {
- exp = ref5[i];
- if (!(exp.unwrap() instanceof Comment)) {
- break;
- }
- results.push(exp);
- }
- return results;
- }).call(this);
- rest = this.expressions.slice(preludeExps.length);
- this.expressions = preludeExps;
- if (preludeExps.length) {
- prelude = this.compileNode(merge(o, {
- indent: ''
- }));
- prelude.push(this.makeCode("\n"));
- }
- this.expressions = rest;
- }
- fragments = this.compileWithDeclarations(o);
- if (o.bare) {
- return fragments;
- }
- return [].concat(prelude, this.makeCode("(function() {\n"), fragments, this.makeCode("\n}).call(this);\n"));
- };
- Block.prototype.compileWithDeclarations = function(o) {
- var assigns, declars, exp, fragments, i, j, len1, post, ref3, ref4, ref5, rest, scope, spaced;
- fragments = [];
- post = [];
- ref3 = this.expressions;
- for (i = j = 0, len1 = ref3.length; j < len1; i = ++j) {
- exp = ref3[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, 9e9);
- ref4 = [this.spaced, false], spaced = ref4[0], this.spaced = ref4[1];
- ref5 = [this.compileNode(o), spaced], fragments = ref5[0], this.spaced = ref5[1];
- this.expressions = rest;
- }
- post = this.compileNode(o);
- scope = o.scope;
- if (scope.expressions === this) {
- declars = o.scope.hasDeclarations();
- assigns = scope.hasAssignments;
- if (declars || assigns) {
- if (i) {
- fragments.push(this.makeCode('\n'));
- }
- fragments.push(this.makeCode(this.tab + "var "));
- if (declars) {
- fragments.push(this.makeCode(scope.declaredVariables().join(', ')));
- }
- if (assigns) {
- if (declars) {
- fragments.push(this.makeCode(",\n" + (this.tab + TAB)));
- }
- fragments.push(this.makeCode(scope.assignedVariables().join(",\n" + (this.tab + TAB))));
- }
- fragments.push(this.makeCode(";\n" + (this.spaced ? '\n' : '')));
- } else if (fragments.length && post.length) {
- fragments.push(this.makeCode("\n"));
- }
- }
- return fragments.concat(post);
- };
- Block.wrap = function(nodes) {
- if (nodes.length === 1 && nodes[0] instanceof Block) {
- return nodes[0];
- }
- return new Block(nodes);
- };
- return Block;
- })(Base);
- exports.Literal = Literal = (function(superClass1) {
- extend1(Literal, superClass1);
- function Literal(value1) {
- this.value = value1;
- }
- Literal.prototype.isComplex = NO;
- Literal.prototype.assigns = function(name) {
- return name === this.value;
- };
- Literal.prototype.compileNode = function(o) {
- return [this.makeCode(this.value)];
- };
- Literal.prototype.toString = function() {
- return " " + (this.isStatement() ? Literal.__super__.toString.apply(this, arguments) : this.constructor.name) + ": " + this.value;
- };
- return Literal;
- })(Base);
- exports.NumberLiteral = NumberLiteral = (function(superClass1) {
- extend1(NumberLiteral, superClass1);
- function NumberLiteral() {
- return NumberLiteral.__super__.constructor.apply(this, arguments);
- }
- return NumberLiteral;
- })(Literal);
- exports.InfinityLiteral = InfinityLiteral = (function(superClass1) {
- extend1(InfinityLiteral, superClass1);
- function InfinityLiteral() {
- return InfinityLiteral.__super__.constructor.apply(this, arguments);
- }
- InfinityLiteral.prototype.compileNode = function() {
- return [this.makeCode('2e308')];
- };
- return InfinityLiteral;
- })(NumberLiteral);
- exports.NaNLiteral = NaNLiteral = (function(superClass1) {
- extend1(NaNLiteral, superClass1);
- function NaNLiteral() {
- NaNLiteral.__super__.constructor.call(this, 'NaN');
- }
- NaNLiteral.prototype.compileNode = function(o) {
- var code;
- code = [this.makeCode('0/0')];
- if (o.level >= LEVEL_OP) {
- return this.wrapInBraces(code);
- } else {
- return code;
- }
- };
- return NaNLiteral;
- })(NumberLiteral);
- exports.StringLiteral = StringLiteral = (function(superClass1) {
- extend1(StringLiteral, superClass1);
- function StringLiteral() {
- return StringLiteral.__super__.constructor.apply(this, arguments);
- }
- return StringLiteral;
- })(Literal);
- exports.RegexLiteral = RegexLiteral = (function(superClass1) {
- extend1(RegexLiteral, superClass1);
- function RegexLiteral() {
- return RegexLiteral.__super__.constructor.apply(this, arguments);
- }
- return RegexLiteral;
- })(Literal);
- exports.PassthroughLiteral = PassthroughLiteral = (function(superClass1) {
- extend1(PassthroughLiteral, superClass1);
- function PassthroughLiteral() {
- return PassthroughLiteral.__super__.constructor.apply(this, arguments);
- }
- return PassthroughLiteral;
- })(Literal);
- exports.IdentifierLiteral = IdentifierLiteral = (function(superClass1) {
- extend1(IdentifierLiteral, superClass1);
- function IdentifierLiteral() {
- return IdentifierLiteral.__super__.constructor.apply(this, arguments);
- }
- IdentifierLiteral.prototype.isAssignable = YES;
- return IdentifierLiteral;
- })(Literal);
- exports.PropertyName = PropertyName = (function(superClass1) {
- extend1(PropertyName, superClass1);
- function PropertyName() {
- return PropertyName.__super__.constructor.apply(this, arguments);
- }
- PropertyName.prototype.isAssignable = YES;
- return PropertyName;
- })(Literal);
- exports.StatementLiteral = StatementLiteral = (function(superClass1) {
- extend1(StatementLiteral, superClass1);
- function StatementLiteral() {
- return StatementLiteral.__super__.constructor.apply(this, arguments);
- }
- StatementLiteral.prototype.isStatement = YES;
- StatementLiteral.prototype.makeReturn = THIS;
- StatementLiteral.prototype.jumps = function(o) {
- if (this.value === 'break' && !((o != null ? o.loop : void 0) || (o != null ? o.block : void 0))) {
- return this;
- }
- if (this.value === 'continue' && !(o != null ? o.loop : void 0)) {
- return this;
- }
- };
- StatementLiteral.prototype.compileNode = function(o) {
- return [this.makeCode("" + this.tab + this.value + ";")];
- };
- return StatementLiteral;
- })(Literal);
- exports.ThisLiteral = ThisLiteral = (function(superClass1) {
- extend1(ThisLiteral, superClass1);
- function ThisLiteral() {
- ThisLiteral.__super__.constructor.call(this, 'this');
- }
- ThisLiteral.prototype.compileNode = function(o) {
- var code, ref3;
- code = ((ref3 = o.scope.method) != null ? ref3.bound : void 0) ? o.scope.method.context : this.value;
- return [this.makeCode(code)];
- };
- return ThisLiteral;
- })(Literal);
- exports.UndefinedLiteral = UndefinedLiteral = (function(superClass1) {
- extend1(UndefinedLiteral, superClass1);
- function UndefinedLiteral() {
- UndefinedLiteral.__super__.constructor.call(this, 'undefined');
- }
- UndefinedLiteral.prototype.compileNode = function(o) {
- return [this.makeCode(o.level >= LEVEL_ACCESS ? '(void 0)' : 'void 0')];
- };
- return UndefinedLiteral;
- })(Literal);
- exports.NullLiteral = NullLiteral = (function(superClass1) {
- extend1(NullLiteral, superClass1);
- function NullLiteral() {
- NullLiteral.__super__.constructor.call(this, 'null');
- }
- return NullLiteral;
- })(Literal);
- exports.BooleanLiteral = BooleanLiteral = (function(superClass1) {
- extend1(BooleanLiteral, superClass1);
- function BooleanLiteral() {
- return BooleanLiteral.__super__.constructor.apply(this, arguments);
- }
- return BooleanLiteral;
- })(Literal);
- exports.Return = Return = (function(superClass1) {
- extend1(Return, superClass1);
- function Return(expression) {
- this.expression = expression;
- }
- Return.prototype.children = ['expression'];
- Return.prototype.isStatement = YES;
- Return.prototype.makeReturn = THIS;
- Return.prototype.jumps = THIS;
- Return.prototype.compileToFragments = function(o, level) {
- var expr, ref3;
- expr = (ref3 = this.expression) != null ? ref3.makeReturn() : void 0;
- if (expr && !(expr instanceof Return)) {
- return expr.compileToFragments(o, level);
- } else {
- return Return.__super__.compileToFragments.call(this, o, level);
- }
- };
- Return.prototype.compileNode = function(o) {
- var answer;
- answer = [];
- answer.push(this.makeCode(this.tab + ("return" + (this.expression ? " " : ""))));
- if (this.expression) {
- answer = answer.concat(this.expression.compileToFragments(o, LEVEL_PAREN));
- }
- answer.push(this.makeCode(";"));
- return answer;
- };
- return Return;
- })(Base);
- exports.YieldReturn = YieldReturn = (function(superClass1) {
- extend1(YieldReturn, superClass1);
- function YieldReturn() {
- return YieldReturn.__super__.constructor.apply(this, arguments);
- }
- YieldReturn.prototype.compileNode = function(o) {
- if (o.scope.parent == null) {
- this.error('yield can only occur inside functions');
- }
- return YieldReturn.__super__.compileNode.apply(this, arguments);
- };
- return YieldReturn;
- })(Return);
- exports.Value = Value = (function(superClass1) {
- extend1(Value, superClass1);
- 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.add = function(props) {
- this.properties = this.properties.concat(props);
- return this;
- };
- Value.prototype.hasProperties = function() {
- return !!this.properties.length;
- };
- Value.prototype.bareLiteral = function(type) {
- return !this.properties.length && this.base instanceof type;
- };
- Value.prototype.isArray = function() {
- return this.bareLiteral(Arr);
- };
- Value.prototype.isRange = function() {
- return this.bareLiteral(Range);
- };
- Value.prototype.isComplex = function() {
- return this.hasProperties() || this.base.isComplex();
- };
- Value.prototype.isAssignable = function() {
- return this.hasProperties() || this.base.isAssignable();
- };
- Value.prototype.isNumber = function() {
- return this.bareLiteral(NumberLiteral);
- };
- Value.prototype.isString = function() {
- return this.bareLiteral(StringLiteral);
- };
- Value.prototype.isRegex = function() {
- return this.bareLiteral(RegexLiteral);
- };
- Value.prototype.isUndefined = function() {
- return this.bareLiteral(UndefinedLiteral);
- };
- Value.prototype.isNull = function() {
- return this.bareLiteral(NullLiteral);
- };
- Value.prototype.isBoolean = function() {
- return this.bareLiteral(BooleanLiteral);
- };
- Value.prototype.isAtomic = function() {
- var j, len1, node, ref3;
- ref3 = this.properties.concat(this.base);
- for (j = 0, len1 = ref3.length; j < len1; j++) {
- node = ref3[j];
- if (node.soak || node instanceof Call) {
- return false;
- }
- }
- return true;
- };
- Value.prototype.isNotCallable = function() {
- return this.isNumber() || this.isString() || this.isRegex() || this.isArray() || this.isRange() || this.isSplice() || this.isObject() || this.isUndefined() || this.isNull() || this.isBoolean();
- };
- 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() {
- var lastProp, ref3;
- ref3 = this.properties, lastProp = ref3[ref3.length - 1];
- return lastProp instanceof Slice;
- };
- Value.prototype.looksStatic = function(className) {
- var ref3;
- return this.base.value === className && this.properties.length === 1 && ((ref3 = this.properties[0].name) != null ? ref3.value : void 0) !== 'prototype';
- };
- Value.prototype.unwrap = function() {
- if (this.properties.length) {
- return this;
- } else {
- return this.base;
- }
- };
- Value.prototype.cacheReference = function(o) {
- var base, bref, name, nref, ref3;
- ref3 = this.properties, name = ref3[ref3.length - 1];
- 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 IdentifierLiteral(o.scope.freeVariable('base'));
- base = new Value(new Parens(new Assign(bref, base)));
- }
- if (!name) {
- return [base, bref];
- }
- if (name.isComplex()) {
- nref = new IdentifierLiteral(o.scope.freeVariable('name'));
- name = new Index(new Assign(nref, name.index));
- nref = new Index(nref);
- }
- return [base.add(name), new Value(bref || base.base, [nref || name])];
- };
- Value.prototype.compileNode = function(o) {
- var fragments, j, len1, prop, props;
- this.base.front = this.front;
- props = this.properties;
- fragments = this.base.compileToFragments(o, (props.length ? LEVEL_ACCESS : null));
- if (props.length && SIMPLENUM.test(fragmentsToText(fragments))) {
- fragments.push(this.makeCode('.'));
- }
- for (j = 0, len1 = props.length; j < len1; j++) {
- prop = props[j];
- fragments.push.apply(fragments, prop.compileToFragments(o));
- }
- return fragments;
- };
- Value.prototype.unfoldSoak = function(o) {
- return this.unfoldedSoak != null ? this.unfoldedSoak : this.unfoldedSoak = (function(_this) {
- return function() {
- var fst, i, ifn, j, len1, prop, ref, ref3, ref4, snd;
- if (ifn = _this.base.unfoldSoak(o)) {
- (ref3 = ifn.body.properties).push.apply(ref3, _this.properties);
- return ifn;
- }
- ref4 = _this.properties;
- for (i = j = 0, len1 = ref4.length; j < len1; i = ++j) {
- prop = ref4[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 IdentifierLiteral(o.scope.freeVariable('ref'));
- fst = new Parens(new Assign(ref, fst));
- snd.base = ref;
- }
- return new If(new Existence(fst), snd, {
- soak: true
- });
- }
- return false;
- };
- })(this)();
- };
- return Value;
- })(Base);
- exports.Comment = Comment = (function(superClass1) {
- extend1(Comment, superClass1);
- function Comment(comment1) {
- this.comment = comment1;
- }
- Comment.prototype.isStatement = YES;
- Comment.prototype.makeReturn = THIS;
- Comment.prototype.compileNode = function(o, level) {
- var code, comment;
- comment = this.comment.replace(/^(\s*)#(?=\s)/gm, "$1 *");
- code = "/*" + (multident(comment, this.tab)) + (indexOf.call(comment, '\n') >= 0 ? "\n" + this.tab : '') + " */";
- if ((level || o.level) === LEVEL_TOP) {
- code = o.indent + code;
- }
- return [this.makeCode("\n"), this.makeCode(code)];
- };
- return Comment;
- })(Base);
- exports.Call = Call = (function(superClass1) {
- extend1(Call, superClass1);
- function Call(variable1, args1, soak) {
- this.variable = variable1;
- this.args = args1 != null ? args1 : [];
- this.soak = soak;
- this.isNew = false;
- if (this.variable instanceof Value && this.variable.isNotCallable()) {
- this.variable.error("literal is not a function");
- }
- }
- Call.prototype.children = ['variable', 'args'];
- Call.prototype.newInstance = function() {
- var base, ref3;
- base = ((ref3 = this.variable) != null ? ref3.base : void 0) || this.variable;
- if (base instanceof Call && !base.isNew) {
- base.newInstance();
- } else {
- this.isNew = true;
- }
- return this;
- };
- Call.prototype.unfoldSoak = function(o) {
- var call, ifn, j, left, len1, list, ref3, ref4, rite;
- if (this.soak) {
- if (this instanceof SuperCall) {
- left = new Literal(this.superReference(o));
- rite = new Value(left);
- } else {
- if (ifn = unfoldSoak(o, this, 'variable')) {
- return ifn;
- }
- ref3 = new Value(this.variable).cacheReference(o), left = ref3[0], rite = ref3[1];
- }
- 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;
- }
- }
- ref4 = list.reverse();
- for (j = 0, len1 = ref4.length; j < len1; j++) {
- call = ref4[j];
- if (ifn) {
- if (call.variable instanceof Call) {
- call.variable = ifn;
- } else {
- call.variable.base = ifn;
- }
- }
- ifn = unfoldSoak(o, call, 'variable');
- }
- return ifn;
- };
- Call.prototype.compileNode = function(o) {
- var arg, argIndex, compiledArgs, compiledArray, fragments, j, len1, preface, ref3, ref4;
- if ((ref3 = this.variable) != null) {
- ref3.front = this.front;
- }
- compiledArray = Splat.compileSplattedArray(o, this.args, true);
- if (compiledArray.length) {
- return this.compileSplat(o, compiledArray);
- }
- compiledArgs = [];
- ref4 = this.args;
- for (argIndex = j = 0, len1 = ref4.length; j < len1; argIndex = ++j) {
- arg = ref4[argIndex];
- if (argIndex) {
- compiledArgs.push(this.makeCode(", "));
- }
- compiledArgs.push.apply(compiledArgs, arg.compileToFragments(o, LEVEL_LIST));
- }
- fragments = [];
- if (this instanceof SuperCall) {
- preface = this.superReference(o) + (".call(" + (this.superThis(o)));
- if (compiledArgs.length) {
- preface += ", ";
- }
- fragments.push(this.makeCode(preface));
- } else {
- if (this.isNew) {
- fragments.push(this.makeCode('new '));
- }
- fragments.push.apply(fragments, this.variable.compileToFragments(o, LEVEL_ACCESS));
- fragments.push(this.makeCode("("));
- }
- fragments.push.apply(fragments, compiledArgs);
- fragments.push(this.makeCode(")"));
- return fragments;
- };
- Call.prototype.compileSplat = function(o, splatArgs) {
- var answer, base, fun, idt, name, ref;
- if (this instanceof SuperCall) {
- return [].concat(this.makeCode((this.superReference(o)) + ".apply(" + (this.superThis(o)) + ", "), splatArgs, this.makeCode(")"));
- }
- if (this.isNew) {
- idt = this.tab + TAB;
- return [].concat(this.makeCode("(function(func, args, ctor) {\n" + idt + "ctor.prototype = func.prototype;\n" + idt + "var child = new ctor, result = func.apply(child, args);\n" + idt + "return Object(result) === result ? result : child;\n" + this.tab + "})("), this.variable.compileToFragments(o, LEVEL_LIST), this.makeCode(", "), splatArgs, this.makeCode(", function(){})"));
- }
- answer = [];
- base = new Value(this.variable);
- if ((name = base.properties.pop()) && base.isComplex()) {
- ref = o.scope.freeVariable('ref');
- answer = answer.concat(this.makeCode("(" + ref + " = "), base.compileToFragments(o, LEVEL_LIST), this.makeCode(")"), name.compileToFragments(o));
- } else {
- fun = base.compileToFragments(o, LEVEL_ACCESS);
- if (SIMPLENUM.test(fragmentsToText(fun))) {
- fun = this.wrapInBraces(fun);
- }
- if (name) {
- ref = fragmentsToText(fun);
- fun.push.apply(fun, name.compileToFragments(o));
- } else {
- ref = 'null';
- }
- answer = answer.concat(fun);
- }
- return answer = answer.concat(this.makeCode(".apply(" + ref + ", "), splatArgs, this.makeCode(")"));
- };
- return Call;
- })(Base);
- exports.SuperCall = SuperCall = (function(superClass1) {
- extend1(SuperCall, superClass1);
- function SuperCall(args) {
- SuperCall.__super__.constructor.call(this, null, args != null ? args : [new Splat(new IdentifierLiteral('arguments'))]);
- this.isBare = args != null;
- }
- SuperCall.prototype.superReference = function(o) {
- var accesses, base, bref, klass, method, name, nref, variable;
- method = o.scope.namedMethod();
- if (method != null ? method.klass : void 0) {
- klass = method.klass, name = method.name, variable = method.variable;
- if (klass.isComplex()) {
- bref = new IdentifierLiteral(o.scope.parent.freeVariable('base'));
- base = new Value(new Parens(new Assign(bref, klass)));
- variable.base = base;
- variable.properties.splice(0, klass.properties.length);
- }
- if (name.isComplex() || (name instanceof Index && name.index.isAssignable())) {
- nref = new IdentifierLiteral(o.scope.parent.freeVariable('name'));
- name = new Index(new Assign(nref, name.index));
- variable.properties.pop();
- variable.properties.push(name);
- }
- accesses = [new Access(new PropertyName('__super__'))];
- if (method["static"]) {
- accesses.push(new Access(new PropertyName('constructor')));
- }
- accesses.push(nref != null ? new Index(nref) : name);
- return (new Value(bref != null ? bref : klass, accesses)).compile(o);
- } else if (method != null ? method.ctor : void 0) {
- return method.name + ".__super__.constructor";
- } else {
- return this.error('cannot call super outside of an instance method.');
- }
- };
- SuperCall.prototype.superThis = function(o) {
- var method;
- method = o.scope.method;
- return (method && !method.klass && method.context) || "this";
- };
- return SuperCall;
- })(Call);
- exports.RegexWithInterpolations = RegexWithInterpolations = (function(superClass1) {
- extend1(RegexWithInterpolations, superClass1);
- function RegexWithInterpolations(args) {
- if (args == null) {
- args = [];
- }
- RegexWithInterpolations.__super__.constructor.call(this, new Value(new IdentifierLiteral('RegExp')), args, false);
- }
- return RegexWithInterpolations;
- })(Call);
- exports.Extends = Extends = (function(superClass1) {
- extend1(Extends, superClass1);
- function Extends(child1, parent1) {
- this.child = child1;
- this.parent = parent1;
- }
- Extends.prototype.children = ['child', 'parent'];
- Extends.prototype.compileToFragments = function(o) {
- return new Call(new Value(new Literal(utility('extend', o))), [this.child, this.parent]).compileToFragments(o);
- };
- return Extends;
- })(Base);
- exports.Access = Access = (function(superClass1) {
- extend1(Access, superClass1);
- function Access(name1, tag) {
- this.name = name1;
- this.name.asKey = true;
- this.soak = tag === 'soak';
- }
- Access.prototype.children = ['name'];
- Access.prototype.compileToFragments = function(o) {
- var name, node, ref3;
- name = this.name.compileToFragments(o);
- node = this.name.unwrap();
- if (node instanceof PropertyName) {
- if (ref3 = node.value, indexOf.call(JS_FORBIDDEN, ref3) >= 0) {
- return [this.makeCode('["')].concat(slice.call(name), [this.makeCode('"]')]);
- } else {
- return [this.makeCode('.')].concat(slice.call(name));
- }
- } else {
- return [this.makeCode('[')].concat(slice.call(name), [this.makeCode(']')]);
- }
- };
- Access.prototype.isComplex = NO;
- return Access;
- })(Base);
- exports.Index = Index = (function(superClass1) {
- extend1(Index, superClass1);
- function Index(index1) {
- this.index = index1;
- }
- Index.prototype.children = ['index'];
- Index.prototype.compileToFragments = function(o) {
- return [].concat(this.makeCode("["), this.index.compileToFragments(o, LEVEL_PAREN), this.makeCode("]"));
- };
- Index.prototype.isComplex = function() {
- return this.index.isComplex();
- };
- return Index;
- })(Base);
- exports.Range = Range = (function(superClass1) {
- extend1(Range, superClass1);
- Range.prototype.children = ['from', 'to'];
- function Range(from1, to1, tag) {
- this.from = from1;
- this.to = to1;
- this.exclusive = tag === 'exclusive';
- this.equals = this.exclusive ? '' : '=';
- }
- Range.prototype.compileVariables = function(o) {
- var isComplex, ref3, ref4, ref5, step;
- o = merge(o, {
- top: true
- });
- isComplex = del(o, 'isComplex');
- ref3 = this.cacheToCodeFragments(this.from.cache(o, LEVEL_LIST, isComplex)), this.fromC = ref3[0], this.fromVar = ref3[1];
- ref4 = this.cacheToCodeFragments(this.to.cache(o, LEVEL_LIST, isComplex)), this.toC = ref4[0], this.toVar = ref4[1];
- if (step = del(o, 'step')) {
- ref5 = this.cacheToCodeFragments(step.cache(o, LEVEL_LIST, isComplex)), this.step = ref5[0], this.stepVar = ref5[1];
- }
- this.fromNum = this.from.isNumber() ? Number(this.fromVar) : null;
- this.toNum = this.to.isNumber() ? Number(this.toVar) : null;
- return this.stepNum = (step != null ? step.isNumber() : void 0) ? Number(this.stepVar) : null;
- };
- Range.prototype.compileNode = function(o) {
- var cond, condPart, from, gt, idx, idxName, known, lt, namedIndex, ref3, ref4, stepPart, to, varPart;
- if (!this.fromVar) {
- this.compileVariables(o);
- }
- if (!o.index) {
- return this.compileArray(o);
- }
- known = (this.fromNum != null) && (this.toNum != null);
- idx = del(o, 'index');
- idxName = del(o, 'name');
- namedIndex = idxName && idxName !== idx;
- varPart = idx + " = " + this.fromC;
- if (this.toC !== this.toVar) {
- varPart += ", " + this.toC;
- }
- if (this.step !== this.stepVar) {
- varPart += ", " + this.step;
- }
- ref3 = [idx + " <" + this.equals, idx + " >" + this.equals], lt = ref3[0], gt = ref3[1];
- condPart = this.stepNum != null ? this.stepNum > 0 ? lt + " " + this.toVar : gt + " " + this.toVar : known ? ((ref4 = [this.fromNum, this.toNum], from = ref4[0], to = ref4[1], ref4), from <= to ? lt + " " + to : gt + " " + to) : (cond = this.stepVar ? this.stepVar + " > 0" : this.fromVar + " <= " + this.toVar, cond + " ? " + lt + " " + this.toVar + " : " + gt + " " + this.toVar);
- stepPart = this.stepVar ? idx + " += " + this.stepVar : known ? namedIndex ? from <= to ? "++" + idx : "--" + idx : from <= to ? idx + "++" : idx + "--" : namedIndex ? cond + " ? ++" + idx + " : --" + idx : cond + " ? " + idx + "++ : " + idx + "--";
- if (namedIndex) {
- varPart = idxName + " = " + varPart;
- }
- if (namedIndex) {
- stepPart = idxName + " = " + stepPart;
- }
- return [this.makeCode(varPart + "; " + condPart + "; " + stepPart)];
- };
- Range.prototype.compileArray = function(o) {
- var args, body, cond, hasArgs, i, idt, j, known, post, pre, range, ref3, ref4, result, results, vars;
- known = (this.fromNum != null) && (this.toNum != null);
- if (known && Math.abs(this.fromNum - this.toNum) <= 20) {
- range = (function() {
- results = [];
- for (var j = ref3 = this.fromNum, ref4 = this.toNum; ref3 <= ref4 ? j <= ref4 : j >= ref4; ref3 <= ref4 ? j++ : j--){ results.push(j); }
- return results;
- }).apply(this);
- if (this.exclusive) {
- range.pop();
- }
- return [this.makeCode("[" + (range.join(', ')) + "]")];
- }
- idt = this.tab + TAB;
- i = o.scope.freeVariable('i', {
- single: true
- });
- result = o.scope.freeVariable('results');
- pre = "\n" + idt + result + " = [];";
- if (known) {
- o.index = i;
- body = fragmentsToText(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(isLiteralArguments) : void 0;
- };
- if (hasArgs(this.from) || hasArgs(this.to)) {
- args = ', arguments';
- }
- return [this.makeCode("(function() {" + pre + "\n" + idt + "for (" + body + ")" + post + "}).apply(this" + (args != null ? args : '') + ")")];
- };
- return Range;
- })(Base);
- exports.Slice = Slice = (function(superClass1) {
- extend1(Slice, superClass1);
- Slice.prototype.children = ['range'];
- function Slice(range1) {
- this.range = range1;
- Slice.__super__.constructor.call(this);
- }
- Slice.prototype.compileNode = function(o) {
- var compiled, compiledText, from, fromCompiled, ref3, to, toStr;
- ref3 = this.range, to = ref3.to, from = ref3.from;
- fromCompiled = from && from.compileToFragments(o, LEVEL_PAREN) || [this.makeCode('0')];
- if (to) {
- compiled = to.compileToFragments(o, LEVEL_PAREN);
- compiledText = fragmentsToText(compiled);
- if (!(!this.range.exclusive && +compiledText === -1)) {
- toStr = ', ' + (this.range.exclusive ? compiledText : to.isNumber() ? "" + (+compiledText + 1) : (compiled = to.compileToFragments(o, LEVEL_ACCESS), "+" + (fragmentsToText(compiled)) + " + 1 || 9e9"));
- }
- }
- return [this.makeCode(".slice(" + (fragmentsToText(fromCompiled)) + (toStr || '') + ")")];
- };
- return Slice;
- })(Base);
- exports.Obj = Obj = (function(superClass1) {
- extend1(Obj, superClass1);
- 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 answer, dynamicIndex, hasDynamic, i, idt, indent, j, join, k, key, l, lastNoncom, len1, len2, len3, node, oref, prop, props, ref3, value;
- props = this.properties;
- if (this.generated) {
- for (j = 0, len1 = props.length; j < len1; j++) {
- node = props[j];
- if (node instanceof Value) {
- node.error('cannot have an implicit value in an implicit object');
- }
- }
- }
- for (dynamicIndex = k = 0, len2 = props.length; k < len2; dynamicIndex = ++k) {
- prop = props[dynamicIndex];
- if ((prop.variable || prop).base instanceof Parens) {
- break;
- }
- }
- hasDynamic = dynamicIndex < props.length;
- idt = o.indent += TAB;
- lastNoncom = this.lastNonComment(this.properties);
- answer = [];
- if (hasDynamic) {
- oref = o.scope.freeVariable('obj');
- answer.push(this.makeCode("(\n" + idt + oref + " = "));
- }
- answer.push(this.makeCode("{" + (props.length === 0 || dynamicIndex === 0 ? '}' : '\n')));
- for (i = l = 0, len3 = props.length; l < len3; i = ++l) {
- prop = props[i];
- if (i === dynamicIndex) {
- if (i !== 0) {
- answer.push(this.makeCode("\n" + idt + "}"));
- }
- answer.push(this.makeCode(',\n'));
- }
- join = i === props.length - 1 || i === dynamicIndex - 1 ? '' : prop === lastNoncom || prop instanceof Comment ? '\n' : ',\n';
- indent = prop instanceof Comment ? '' : idt;
- if (hasDynamic && i < dynamicIndex) {
- indent += TAB;
- }
- if (prop instanceof Assign) {
- if (prop.context !== 'object') {
- prop.operatorToken.error("unexpected " + prop.operatorToken.value);
- }
- if (prop.variable instanceof Value && prop.variable.hasProperties()) {
- prop.variable.error('invalid object key');
- }
- }
- if (prop instanceof Value && prop["this"]) {
- prop = new Assign(prop.properties[0].name, prop, 'object');
- }
- if (!(prop instanceof Comment)) {
- if (i < dynamicIndex) {
- if (!(prop instanceof Assign)) {
- prop = new Assign(prop, prop, 'object');
- }
- (prop.variable.base || prop.variable).asKey = true;
- } else {
- if (prop instanceof Assign) {
- key = prop.variable;
- value = prop.value;
- } else {
- ref3 = prop.base.cache(o), key = ref3[0], value = ref3[1];
- }
- prop = new Assign(new Value(new IdentifierLiteral(oref), [new Access(key)]), value);
- }
- }
- if (indent) {
- answer.push(this.makeCode(indent));
- }
- answer.push.apply(answer, prop.compileToFragments(o, LEVEL_TOP));
- if (join) {
- answer.push(this.makeCode(join));
- }
- }
- if (hasDynamic) {
- answer.push(this.makeCode(",\n" + idt + oref + "\n" + this.tab + ")"));
- } else {
- if (props.length !== 0) {
- answer.push(this.makeCode("\n" + this.tab + "}"));
- }
- }
- if (this.front && !hasDynamic) {
- return this.wrapInBraces(answer);
- } else {
- return answer;
- }
- };
- Obj.prototype.assigns = function(name) {
- var j, len1, prop, ref3;
- ref3 = this.properties;
- for (j = 0, len1 = ref3.length; j < len1; j++) {
- prop = ref3[j];
- if (prop.assigns(name)) {
- return true;
- }
- }
- return false;
- };
- return Obj;
- })(Base);
- exports.Arr = Arr = (function(superClass1) {
- extend1(Arr, superClass1);
- function Arr(objs) {
- this.objects = objs || [];
- }
- Arr.prototype.children = ['objects'];
- Arr.prototype.compileNode = function(o) {
- var answer, compiledObjs, fragments, index, j, len1, obj;
- if (!this.objects.length) {
- return [this.makeCode('[]')];
- }
- o.indent += TAB;
- answer = Splat.compileSplattedArray(o, this.objects);
- if (answer.length) {
- return answer;
- }
- answer = [];
- compiledObjs = (function() {
- var j, len1, ref3, results;
- ref3 = this.objects;
- results = [];
- for (j = 0, len1 = ref3.length; j < len1; j++) {
- obj = ref3[j];
- results.push(obj.compileToFragments(o, LEVEL_LIST));
- }
- return results;
- }).call(this);
- for (index = j = 0, len1 = compiledObjs.length; j < len1; index = ++j) {
- fragments = compiledObjs[index];
- if (index) {
- answer.push(this.makeCode(", "));
- }
- answer.push.apply(answer, fragments);
- }
- if (fragmentsToText(answer).indexOf('\n') >= 0) {
- answer.unshift(this.makeCode("[\n" + o.indent));
- answer.push(this.makeCode("\n" + this.tab + "]"));
- } else {
- answer.unshift(this.makeCode("["));…