%PDF-
%PDF-
Mini Shell
Mini Shell
'use strict';
function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
var parser = require('./parser');
var transformer = require('./transformer');
var nodes = require('./nodes');
var _require = require('./lib'),
TemplateError = _require.TemplateError;
var _require2 = require('./runtime'),
Frame = _require2.Frame;
var _require3 = require('./object'),
Obj = _require3.Obj;
// These are all the same for now, but shouldn't be passed straight
// through
var compareOps = {
'==': '==',
'===': '===',
'!=': '!=',
'!==': '!==',
'<': '<',
'>': '>',
'<=': '<=',
'>=': '>='
};
var Compiler = /*#__PURE__*/function (_Obj) {
_inheritsLoose(Compiler, _Obj);
function Compiler() {
return _Obj.apply(this, arguments) || this;
}
var _proto = Compiler.prototype;
_proto.init = function init(templateName, throwOnUndefined) {
this.templateName = templateName;
this.codebuf = [];
this.lastId = 0;
this.buffer = null;
this.bufferStack = [];
this._scopeClosers = '';
this.inBlock = false;
this.throwOnUndefined = throwOnUndefined;
};
_proto.fail = function fail(msg, lineno, colno) {
if (lineno !== undefined) {
lineno += 1;
}
if (colno !== undefined) {
colno += 1;
}
throw new TemplateError(msg, lineno, colno);
};
_proto._pushBuffer = function _pushBuffer() {
var id = this._tmpid();
this.bufferStack.push(this.buffer);
this.buffer = id;
this._emit("var " + this.buffer + " = \"\";");
return id;
};
_proto._popBuffer = function _popBuffer() {
this.buffer = this.bufferStack.pop();
};
_proto._emit = function _emit(code) {
this.codebuf.push(code);
};
_proto._emitLine = function _emitLine(code) {
this._emit(code + '\n');
};
_proto._emitLines = function _emitLines() {
var _this = this;
for (var _len = arguments.length, lines = new Array(_len), _key = 0; _key < _len; _key++) {
lines[_key] = arguments[_key];
}
lines.forEach(function (line) {
return _this._emitLine(line);
});
};
_proto._emitFuncBegin = function _emitFuncBegin(node, name) {
this.buffer = 'output';
this._scopeClosers = '';
this._emitLine("function " + name + "(env, context, frame, runtime, cb) {");
this._emitLine("var lineno = " + node.lineno + ";");
this._emitLine("var colno = " + node.colno + ";");
this._emitLine("var " + this.buffer + " = \"\";");
this._emitLine('try {');
};
_proto._emitFuncEnd = function _emitFuncEnd(noReturn) {
if (!noReturn) {
this._emitLine('cb(null, ' + this.buffer + ');');
}
this._closeScopeLevels();
this._emitLine('} catch (e) {');
this._emitLine(' cb(runtime.handleError(e, lineno, colno));');
this._emitLine('}');
this._emitLine('}');
this.buffer = null;
};
_proto._addScopeLevel = function _addScopeLevel() {
this._scopeClosers += '})';
};
_proto._closeScopeLevels = function _closeScopeLevels() {
this._emitLine(this._scopeClosers + ';');
this._scopeClosers = '';
};
_proto._withScopedSyntax = function _withScopedSyntax(func) {
var _scopeClosers = this._scopeClosers;
this._scopeClosers = '';
func.call(this);
this._closeScopeLevels();
this._scopeClosers = _scopeClosers;
};
_proto._makeCallback = function _makeCallback(res) {
var err = this._tmpid();
return 'function(' + err + (res ? ',' + res : '') + ') {\n' + 'if(' + err + ') { cb(' + err + '); return; }';
};
_proto._tmpid = function _tmpid() {
this.lastId++;
return 't_' + this.lastId;
};
_proto._templateName = function _templateName() {
return this.templateName == null ? 'undefined' : JSON.stringify(this.templateName);
};
_proto._compileChildren = function _compileChildren(node, frame) {
var _this2 = this;
node.children.forEach(function (child) {
_this2.compile(child, frame);
});
};
_proto._compileAggregate = function _compileAggregate(node, frame, startChar, endChar) {
var _this3 = this;
if (startChar) {
this._emit(startChar);
}
node.children.forEach(function (child, i) {
if (i > 0) {
_this3._emit(',');
}
_this3.compile(child, frame);
});
if (endChar) {
this._emit(endChar);
}
};
_proto._compileExpression = function _compileExpression(node, frame) {
// TODO: I'm not really sure if this type check is worth it or
// not.
this.assertType(node, nodes.Literal, nodes.Symbol, nodes.Group, nodes.Array, nodes.Dict, nodes.FunCall, nodes.Caller, nodes.Filter, nodes.LookupVal, nodes.Compare, nodes.InlineIf, nodes.In, nodes.Is, nodes.And, nodes.Or, nodes.Not, nodes.Add, nodes.Concat, nodes.Sub, nodes.Mul, nodes.Div, nodes.FloorDiv, nodes.Mod, nodes.Pow, nodes.Neg, nodes.Pos, nodes.Compare, nodes.NodeList);
this.compile(node, frame);
};
_proto.assertType = function assertType(node) {
for (var _len2 = arguments.length, types = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
types[_key2 - 1] = arguments[_key2];
}
if (!types.some(function (t) {
return node instanceof t;
})) {
this.fail("assertType: invalid type: " + node.typename, node.lineno, node.colno);
}
};
_proto.compileCallExtension = function compileCallExtension(node, frame, async) {
var _this4 = this;
var args = node.args;
var contentArgs = node.contentArgs;
var autoescape = typeof node.autoescape === 'boolean' ? node.autoescape : true;
if (!async) {
this._emit(this.buffer + " += runtime.suppressValue(");
}
this._emit("env.getExtension(\"" + node.extName + "\")[\"" + node.prop + "\"](");
this._emit('context');
if (args || contentArgs) {
this._emit(',');
}
if (args) {
if (!(args instanceof nodes.NodeList)) {
this.fail('compileCallExtension: arguments must be a NodeList, ' + 'use `parser.parseSignature`');
}
args.children.forEach(function (arg, i) {
// Tag arguments are passed normally to the call. Note
// that keyword arguments are turned into a single js
// object as the last argument, if they exist.
_this4._compileExpression(arg, frame);
if (i !== args.children.length - 1 || contentArgs.length) {
_this4._emit(',');
}
});
}
if (contentArgs.length) {
contentArgs.forEach(function (arg, i) {
if (i > 0) {
_this4._emit(',');
}
if (arg) {
_this4._emitLine('function(cb) {');
_this4._emitLine('if(!cb) { cb = function(err) { if(err) { throw err; }}}');
var id = _this4._pushBuffer();
_this4._withScopedSyntax(function () {
_this4.compile(arg, frame);
_this4._emitLine("cb(null, " + id + ");");
});
_this4._popBuffer();
_this4._emitLine("return " + id + ";");
_this4._emitLine('}');
} else {
_this4._emit('null');
}
});
}
if (async) {
var res = this._tmpid();
this._emitLine(', ' + this._makeCallback(res));
this._emitLine(this.buffer + " += runtime.suppressValue(" + res + ", " + autoescape + " && env.opts.autoescape);");
this._addScopeLevel();
} else {
this._emit(')');
this._emit(", " + autoescape + " && env.opts.autoescape);\n");
}
};
_proto.compileCallExtensionAsync = function compileCallExtensionAsync(node, frame) {
this.compileCallExtension(node, frame, true);
};
_proto.compileNodeList = function compileNodeList(node, frame) {
this._compileChildren(node, frame);
};
_proto.compileLiteral = function compileLiteral(node) {
if (typeof node.value === 'string') {
var val = node.value.replace(/\\/g, '\\\\');
val = val.replace(/"/g, '\\"');
val = val.replace(/\n/g, '\\n');
val = val.replace(/\r/g, '\\r');
val = val.replace(/\t/g, '\\t');
val = val.replace(/\u2028/g, "\\u2028");
this._emit("\"" + val + "\"");
} else if (node.value === null) {
this._emit('null');
} else {
this._emit(node.value.toString());
}
};
_proto.compileSymbol = function compileSymbol(node, frame) {
var name = node.value;
var v = frame.lookup(name);
if (v) {
this._emit(v);
} else {
this._emit('runtime.contextOrFrameLookup(' + 'context, frame, "' + name + '")');
}
};
_proto.compileGroup = function compileGroup(node, frame) {
this._compileAggregate(node, frame, '(', ')');
};
_proto.compileArray = function compileArray(node, frame) {
this._compileAggregate(node, frame, '[', ']');
};
_proto.compileDict = function compileDict(node, frame) {
this._compileAggregate(node, frame, '{', '}');
};
_proto.compilePair = function compilePair(node, frame) {
var key = node.key;
var val = node.value;
if (key instanceof nodes.Symbol) {
key = new nodes.Literal(key.lineno, key.colno, key.value);
} else if (!(key instanceof nodes.Literal && typeof key.value === 'string')) {
this.fail('compilePair: Dict keys must be strings or names', key.lineno, key.colno);
}
this.compile(key, frame);
this._emit(': ');
this._compileExpression(val, frame);
};
_proto.compileInlineIf = function compileInlineIf(node, frame) {
this._emit('(');
this.compile(node.cond, frame);
this._emit('?');
this.compile(node.body, frame);
this._emit(':');
if (node.else_ !== null) {
this.compile(node.else_, frame);
} else {
this._emit('""');
}
this._emit(')');
};
_proto.compileIn = function compileIn(node, frame) {
this._emit('runtime.inOperator(');
this.compile(node.left, frame);
this._emit(',');
this.compile(node.right, frame);
this._emit(')');
};
_proto.compileIs = function compileIs(node, frame) {
// first, we need to try to get the name of the test function, if it's a
// callable (i.e., has args) and not a symbol.
var right = node.right.name ? node.right.name.value
// otherwise go with the symbol value
: node.right.value;
this._emit('env.getTest("' + right + '").call(context, ');
this.compile(node.left, frame);
// compile the arguments for the callable if they exist
if (node.right.args) {
this._emit(',');
this.compile(node.right.args, frame);
}
this._emit(') === true');
};
_proto._binOpEmitter = function _binOpEmitter(node, frame, str) {
this.compile(node.left, frame);
this._emit(str);
this.compile(node.right, frame);
}
// ensure concatenation instead of addition
// by adding empty string in between
;
_proto.compileOr = function compileOr(node, frame) {
return this._binOpEmitter(node, frame, ' || ');
};
_proto.compileAnd = function compileAnd(node, frame) {
return this._binOpEmitter(node, frame, ' && ');
};
_proto.compileAdd = function compileAdd(node, frame) {
return this._binOpEmitter(node, frame, ' + ');
};
_proto.compileConcat = function compileConcat(node, frame) {
return this._binOpEmitter(node, frame, ' + "" + ');
};
_proto.compileSub = function compileSub(node, frame) {
return this._binOpEmitter(node, frame, ' - ');
};
_proto.compileMul = function compileMul(node, frame) {
return this._binOpEmitter(node, frame, ' * ');
};
_proto.compileDiv = function compileDiv(node, frame) {
return this._binOpEmitter(node, frame, ' / ');
};
_proto.compileMod = function compileMod(node, frame) {
return this._binOpEmitter(node, frame, ' % ');
};
_proto.compileNot = function compileNot(node, frame) {
this._emit('!');
this.compile(node.target, frame);
};
_proto.compileFloorDiv = function compileFloorDiv(node, frame) {
this._emit('Math.floor(');
this.compile(node.left, frame);
this._emit(' / ');
this.compile(node.right, frame);
this._emit(')');
};
_proto.compilePow = function compilePow(node, frame) {
this._emit('Math.pow(');
this.compile(node.left, frame);
this._emit(', ');
this.compile(node.right, frame);
this._emit(')');
};
_proto.compileNeg = function compileNeg(node, frame) {
this._emit('-');
this.compile(node.target, frame);
};
_proto.compilePos = function compilePos(node, frame) {
this._emit('+');
this.compile(node.target, frame);
};
_proto.compileCompare = function compileCompare(node, frame) {
var _this5 = this;
this.compile(node.expr, frame);
node.ops.forEach(function (op) {
_this5._emit(" " + compareOps[op.type] + " ");
_this5.compile(op.expr, frame);
});
};
_proto.compileLookupVal = function compileLookupVal(node, frame) {
this._emit('runtime.memberLookup((');
this._compileExpression(node.target, frame);
this._emit('),');
this._compileExpression(node.val, frame);
this._emit(')');
};
_proto._getNodeName = function _getNodeName(node) {
switch (node.typename) {
case 'Symbol':
return node.value;
case 'FunCall':
return 'the return value of (' + this._getNodeName(node.name) + ')';
case 'LookupVal':
return this._getNodeName(node.target) + '["' + this._getNodeName(node.val) + '"]';
case 'Literal':
return node.value.toString();
default:
return '--expression--';
}
};
_proto.compileFunCall = function compileFunCall(node, frame) {
// Keep track of line/col info at runtime by settings
// variables within an expression. An expression in javascript
// like (x, y, z) returns the last value, and x and y can be
// anything
this._emit('(lineno = ' + node.lineno + ', colno = ' + node.colno + ', ');
this._emit('runtime.callWrap(');
// Compile it as normal.
this._compileExpression(node.name, frame);
// Output the name of what we're calling so we can get friendly errors
// if the lookup fails.
this._emit(', "' + this._getNodeName(node.name).replace(/"/g, '\\"') + '", context, ');
this._compileAggregate(node.args, frame, '[', '])');
this._emit(')');
};
_proto.compileFilter = function compileFilter(node, frame) {
var name = node.name;
this.assertType(name, nodes.Symbol);
this._emit('env.getFilter("' + name.value + '").call(context, ');
this._compileAggregate(node.args, frame);
this._emit(')');
};
_proto.compileFilterAsync = function compileFilterAsync(node, frame) {
var name = node.name;
var symbol = node.symbol.value;
this.assertType(name, nodes.Symbol);
frame.set(symbol, symbol);
this._emit('env.getFilter("' + name.value + '").call(context, ');
this._compileAggregate(node.args, frame);
this._emitLine(', ' + this._makeCallback(symbol));
this._addScopeLevel();
};
_proto.compileKeywordArgs = function compileKeywordArgs(node, frame) {
this._emit('runtime.makeKeywordArgs(');
this.compileDict(node, frame);
this._emit(')');
};
_proto.compileSet = function compileSet(node, frame) {
var _this6 = this;
var ids = [];
// Lookup the variable names for each identifier and create
// new ones if necessary
node.targets.forEach(function (target) {
var name = target.value;
var id = frame.lookup(name);
if (id === null || id === undefined) {
id = _this6._tmpid();
// Note: This relies on js allowing scope across
// blocks, in case this is created inside an `if`
_this6._emitLine('var ' + id + ';');
}
ids.push(id);
});
if (node.value) {
this._emit(ids.join(' = ') + ' = ');
this._compileExpression(node.value, frame);
this._emitLine(';');
} else {
this._emit(ids.join(' = ') + ' = ');
this.compile(node.body, frame);
this._emitLine(';');
}
node.targets.forEach(function (target, i) {
var id = ids[i];
var name = target.value;
// We are running this for every var, but it's very
// uncommon to assign to multiple vars anyway
_this6._emitLine("frame.set(\"" + name + "\", " + id + ", true);");
_this6._emitLine('if(frame.topLevel) {');
_this6._emitLine("context.setVariable(\"" + name + "\", " + id + ");");
_this6._emitLine('}');
if (name.charAt(0) !== '_') {
_this6._emitLine('if(frame.topLevel) {');
_this6._emitLine("context.addExport(\"" + name + "\", " + id + ");");
_this6._emitLine('}');
}
});
};
_proto.compileSwitch = function compileSwitch(node, frame) {
var _this7 = this;
this._emit('switch (');
this.compile(node.expr, frame);
this._emit(') {');
node.cases.forEach(function (c, i) {
_this7._emit('case ');
_this7.compile(c.cond, frame);
_this7._emit(': ');
_this7.compile(c.body, frame);
// preserve fall-throughs
if (c.body.children.length) {
_this7._emitLine('break;');
}
});
if (node.default) {
this._emit('default:');
this.compile(node.default, frame);
}
this._emit('}');
};
_proto.compileIf = function compileIf(node, frame, async) {
var _this8 = this;
this._emit('if(');
this._compileExpression(node.cond, frame);
this._emitLine(') {');
this._withScopedSyntax(function () {
_this8.compile(node.body, frame);
if (async) {
_this8._emit('cb()');
}
});
if (node.else_) {
this._emitLine('}\nelse {');
this._withScopedSyntax(function () {
_this8.compile(node.else_, frame);
if (async) {
_this8._emit('cb()');
}
});
} else if (async) {
this._emitLine('}\nelse {');
this._emit('cb()');
}
this._emitLine('}');
};
_proto.compileIfAsync = function compileIfAsync(node, frame) {
this._emit('(function(cb) {');
this.compileIf(node, frame, true);
this._emit('})(' + this._makeCallback());
this._addScopeLevel();
};
_proto._emitLoopBindings = function _emitLoopBindings(node, arr, i, len) {
var _this9 = this;
var bindings = [{
name: 'index',
val: i + " + 1"
}, {
name: 'index0',
val: i
}, {
name: 'revindex',
val: len + " - " + i
}, {
name: 'revindex0',
val: len + " - " + i + " - 1"
}, {
name: 'first',
val: i + " === 0"
}, {
name: 'last',
val: i + " === " + len + " - 1"
}, {
name: 'length',
val: len
}];
bindings.forEach(function (b) {
_this9._emitLine("frame.set(\"loop." + b.name + "\", " + b.val + ");");
});
};
_proto.compileFor = function compileFor(node, frame) {
var _this10 = this;
// Some of this code is ugly, but it keeps the generated code
// as fast as possible. ForAsync also shares some of this, but
// not much.
var i = this._tmpid();
var len = this._tmpid();
var arr = this._tmpid();
frame = frame.push();
this._emitLine('frame = frame.push();');
this._emit("var " + arr + " = ");
this._compileExpression(node.arr, frame);
this._emitLine(';');
this._emit("if(" + arr + ") {");
this._emitLine(arr + ' = runtime.fromIterator(' + arr + ');');
// If multiple names are passed, we need to bind them
// appropriately
if (node.name instanceof nodes.Array) {
this._emitLine("var " + i + ";");
// The object could be an arroy or object. Note that the
// body of the loop is duplicated for each condition, but
// we are optimizing for speed over size.
this._emitLine("if(runtime.isArray(" + arr + ")) {");
this._emitLine("var " + len + " = " + arr + ".length;");
this._emitLine("for(" + i + "=0; " + i + " < " + arr + ".length; " + i + "++) {");
// Bind each declared var
node.name.children.forEach(function (child, u) {
var tid = _this10._tmpid();
_this10._emitLine("var " + tid + " = " + arr + "[" + i + "][" + u + "];");
_this10._emitLine("frame.set(\"" + child + "\", " + arr + "[" + i + "][" + u + "]);");
frame.set(node.name.children[u].value, tid);
});
this._emitLoopBindings(node, arr, i, len);
this._withScopedSyntax(function () {
_this10.compile(node.body, frame);
});
this._emitLine('}');
this._emitLine('} else {');
// Iterate over the key/values of an object
var _node$name$children = node.name.children,
key = _node$name$children[0],
val = _node$name$children[1];
var k = this._tmpid();
var v = this._tmpid();
frame.set(key.value, k);
frame.set(val.value, v);
this._emitLine(i + " = -1;");
this._emitLine("var " + len + " = runtime.keys(" + arr + ").length;");
this._emitLine("for(var " + k + " in " + arr + ") {");
this._emitLine(i + "++;");
this._emitLine("var " + v + " = " + arr + "[" + k + "];");
this._emitLine("frame.set(\"" + key.value + "\", " + k + ");");
this._emitLine("frame.set(\"" + val.value + "\", " + v + ");");
this._emitLoopBindings(node, arr, i, len);
this._withScopedSyntax(function () {
_this10.compile(node.body, frame);
});
this._emitLine('}');
this._emitLine('}');
} else {
// Generate a typical array iteration
var _v = this._tmpid();
frame.set(node.name.value, _v);
this._emitLine("var " + len + " = " + arr + ".length;");
this._emitLine("for(var " + i + "=0; " + i + " < " + arr + ".length; " + i + "++) {");
this._emitLine("var " + _v + " = " + arr + "[" + i + "];");
this._emitLine("frame.set(\"" + node.name.value + "\", " + _v + ");");
this._emitLoopBindings(node, arr, i, len);
this._withScopedSyntax(function () {
_this10.compile(node.body, frame);
});
this._emitLine('}');
}
this._emitLine('}');
if (node.else_) {
this._emitLine('if (!' + len + ') {');
this.compile(node.else_, frame);
this._emitLine('}');
}
this._emitLine('frame = frame.pop();');
};
_proto._compileAsyncLoop = function _compileAsyncLoop(node, frame, parallel) {
var _this11 = this;
// This shares some code with the For tag, but not enough to
// worry about. This iterates across an object asynchronously,
// but not in parallel.
var i = this._tmpid();
var len = this._tmpid();
var arr = this._tmpid();
var asyncMethod = parallel ? 'asyncAll' : 'asyncEach';
frame = frame.push();
this._emitLine('frame = frame.push();');
this._emit('var ' + arr + ' = runtime.fromIterator(');
this._compileExpression(node.arr, frame);
this._emitLine(');');
if (node.name instanceof nodes.Array) {
var arrayLen = node.name.children.length;
this._emit("runtime." + asyncMethod + "(" + arr + ", " + arrayLen + ", function(");
node.name.children.forEach(function (name) {
_this11._emit(name.value + ",");
});
this._emit(i + ',' + len + ',next) {');
node.name.children.forEach(function (name) {
var id = name.value;
frame.set(id, id);
_this11._emitLine("frame.set(\"" + id + "\", " + id + ");");
});
} else {
var id = node.name.value;
this._emitLine("runtime." + asyncMethod + "(" + arr + ", 1, function(" + id + ", " + i + ", " + len + ",next) {");
this._emitLine('frame.set("' + id + '", ' + id + ');');
frame.set(id, id);
}
this._emitLoopBindings(node, arr, i, len);
this._withScopedSyntax(function () {
var buf;
if (parallel) {
buf = _this11._pushBuffer();
}
_this11.compile(node.body, frame);
_this11._emitLine('next(' + i + (buf ? ',' + buf : '') + ');');
if (parallel) {
_this11._popBuffer();
}
});
var output = this._tmpid();
this._emitLine('}, ' + this._makeCallback(output));
this._addScopeLevel();
if (parallel) {
this._emitLine(this.buffer + ' += ' + output + ';');
}
if (node.else_) {
this._emitLine('if (!' + arr + '.length) {');
this.compile(node.else_, frame);
this._emitLine('}');
}
this._emitLine('frame = frame.pop();');
};
_proto.compileAsyncEach = function compileAsyncEach(node, frame) {
this._compileAsyncLoop(node, frame);
};
_proto.compileAsyncAll = function compileAsyncAll(node, frame) {
this._compileAsyncLoop(node, frame, true);
};
_proto._compileMacro = function _compileMacro(node, frame) {
var _this12 = this;
var args = [];
var kwargs = null;
var funcId = 'macro_' + this._tmpid();
var keepFrame = frame !== undefined;
// Type check the definition of the args
node.args.children.forEach(function (arg, i) {
if (i === node.args.children.length - 1 && arg instanceof nodes.Dict) {
kwargs = arg;
} else {
_this12.assertType(arg, nodes.Symbol);
args.push(arg);
}
});
var realNames = [].concat(args.map(function (n) {
return "l_" + n.value;
}), ['kwargs']);
// Quoted argument names
var argNames = args.map(function (n) {
return "\"" + n.value + "\"";
});
var kwargNames = (kwargs && kwargs.children || []).map(function (n) {
return "\"" + n.key.value + "\"";
});
// We pass a function to makeMacro which destructures the
// arguments so support setting positional args with keywords
// args and passing keyword args as positional args
// (essentially default values). See runtime.js.
var currFrame;
if (keepFrame) {
currFrame = frame.push(true);
} else {
currFrame = new Frame();
}
this._emitLines("var " + funcId + " = runtime.makeMacro(", "[" + argNames.join(', ') + "], ", "[" + kwargNames.join(', ') + "], ", "function (" + realNames.join(', ') + ") {", 'var callerFrame = frame;', 'frame = ' + (keepFrame ? 'frame.push(true);' : 'new runtime.Frame();'), 'kwargs = kwargs || {};', 'if (Object.prototype.hasOwnProperty.call(kwargs, "caller")) {', 'frame.set("caller", kwargs.caller); }');
// Expose the arguments to the template. Don't need to use
// random names because the function
// will create a new run-time scope for us
args.forEach(function (arg) {
_this12._emitLine("frame.set(\"" + arg.value + "\", l_" + arg.value + ");");
currFrame.set(arg.value, "l_" + arg.value);
});
// Expose the keyword arguments
if (kwargs) {
kwargs.children.forEach(function (pair) {
var name = pair.key.value;
_this12._emit("frame.set(\"" + name + "\", ");
_this12._emit("Object.prototype.hasOwnProperty.call(kwargs, \"" + name + "\")");
_this12._emit(" ? kwargs[\"" + name + "\"] : ");
_this12._compileExpression(pair.value, currFrame);
_this12._emit(');');
});
}
var bufferId = this._pushBuffer();
this._withScopedSyntax(function () {
_this12.compile(node.body, currFrame);
});
this._emitLine('frame = ' + (keepFrame ? 'frame.pop();' : 'callerFrame;'));
this._emitLine("return new runtime.SafeString(" + bufferId + ");");
this._emitLine('});');
this._popBuffer();
return funcId;
};
_proto.compileMacro = function compileMacro(node, frame) {
var funcId = this._compileMacro(node);
// Expose the macro to the templates
var name = node.name.value;
frame.set(name, funcId);
if (frame.parent) {
this._emitLine("frame.set(\"" + name + "\", " + funcId + ");");
} else {
if (node.name.value.charAt(0) !== '_') {
this._emitLine("context.addExport(\"" + name + "\");");
}
this._emitLine("context.setVariable(\"" + name + "\", " + funcId + ");");
}
};
_proto.compileCaller = function compileCaller(node, frame) {
// basically an anonymous "macro expression"
this._emit('(function (){');
var funcId = this._compileMacro(node, frame);
this._emit("return " + funcId + ";})()");
};
_proto._compileGetTemplate = function _compileGetTemplate(node, frame, eagerCompile, ignoreMissing) {
var parentTemplateId = this._tmpid();
var parentName = this._templateName();
var cb = this._makeCallback(parentTemplateId);
var eagerCompileArg = eagerCompile ? 'true' : 'false';
var ignoreMissingArg = ignoreMissing ? 'true' : 'false';
this._emit('env.getTemplate(');
this._compileExpression(node.template, frame);
this._emitLine(", " + eagerCompileArg + ", " + parentName + ", " + ignoreMissingArg + ", " + cb);
return parentTemplateId;
};
_proto.compileImport = function compileImport(node, frame) {
var target = node.target.value;
var id = this._compileGetTemplate(node, frame, false, false);
this._addScopeLevel();
this._emitLine(id + '.getExported(' + (node.withContext ? 'context.getVariables(), frame, ' : '') + this._makeCallback(id));
this._addScopeLevel();
frame.set(target, id);
if (frame.parent) {
this._emitLine("frame.set(\"" + target + "\", " + id + ");");
} else {
this._emitLine("context.setVariable(\"" + target + "\", " + id + ");");
}
};
_proto.compileFromImport = function compileFromImport(node, frame) {
var _this13 = this;
var importedId = this._compileGetTemplate(node, frame, false, false);
this._addScopeLevel();
this._emitLine(importedId + '.getExported(' + (node.withContext ? 'context.getVariables(), frame, ' : '') + this._makeCallback(importedId));
this._addScopeLevel();
node.names.children.forEach(function (nameNode) {
var name;
var alias;
var id = _this13._tmpid();
if (nameNode instanceof nodes.Pair) {
name = nameNode.key.value;
alias = nameNode.value.value;
} else {
name = nameNode.value;
alias = name;
}
_this13._emitLine("if(Object.prototype.hasOwnProperty.call(" + importedId + ", \"" + name + "\")) {");
_this13._emitLine("var " + id + " = " + importedId + "." + name + ";");
_this13._emitLine('} else {');
_this13._emitLine("cb(new Error(\"cannot import '" + name + "'\")); return;");
_this13._emitLine('}');
frame.set(alias, id);
if (frame.parent) {
_this13._emitLine("frame.set(\"" + alias + "\", " + id + ");");
} else {
_this13._emitLine("context.setVariable(\"" + alias + "\", " + id + ");");
}
});
};
_proto.compileBlock = function compileBlock(node) {
var id = this._tmpid();
// If we are executing outside a block (creating a top-level
// block), we really don't want to execute its code because it
// will execute twice: once when the child template runs and
// again when the parent template runs. Note that blocks
// within blocks will *always* execute immediately *and*
// wherever else they are invoked (like used in a parent
// template). This may have behavioral differences from jinja
// because blocks can have side effects, but it seems like a
// waste of performance to always execute huge top-level
// blocks twice
if (!this.inBlock) {
this._emit('(parentTemplate ? function(e, c, f, r, cb) { cb(""); } : ');
}
this._emit("context.getBlock(\"" + node.name.value + "\")");
if (!this.inBlock) {
this._emit(')');
}
this._emitLine('(env, context, frame, runtime, ' + this._makeCallback(id));
this._emitLine(this.buffer + " += " + id + ";");
this._addScopeLevel();
};
_proto.compileSuper = function compileSuper(node, frame) {
var name = node.blockName.value;
var id = node.symbol.value;
var cb = this._makeCallback(id);
this._emitLine("context.getSuper(env, \"" + name + "\", b_" + name + ", frame, runtime, " + cb);
this._emitLine(id + " = runtime.markSafe(" + id + ");");
this._addScopeLevel();
frame.set(id, id);
};
_proto.compileExtends = function compileExtends(node, frame) {
var k = this._tmpid();
var parentTemplateId = this._compileGetTemplate(node, frame, true, false);
// extends is a dynamic tag and can occur within a block like
// `if`, so if this happens we need to capture the parent
// template in the top-level scope
this._emitLine("parentTemplate = " + parentTemplateId);
this._emitLine("for(var " + k + " in parentTemplate.blocks) {");
this._emitLine("context.addBlock(" + k + ", parentTemplate.blocks[" + k + "]);");
this._emitLine('}');
this._addScopeLevel();
};
_proto.compileInclude = function compileInclude(node, frame) {
this._emitLine('var tasks = [];');
this._emitLine('tasks.push(');
this._emitLine('function(callback) {');
var id = this._compileGetTemplate(node, frame, false, node.ignoreMissing);
this._emitLine("callback(null," + id + ");});");
this._emitLine('});');
var id2 = this._tmpid();
this._emitLine('tasks.push(');
this._emitLine('function(template, callback){');
this._emitLine('template.render(context.getVariables(), frame, ' + this._makeCallback(id2));
this._emitLine('callback(null,' + id2 + ');});');
this._emitLine('});');
this._emitLine('tasks.push(');
this._emitLine('function(result, callback){');
this._emitLine(this.buffer + " += result;");
this._emitLine('callback(null);');
this._emitLine('});');
this._emitLine('env.waterfall(tasks, function(){');
this._addScopeLevel();
};
_proto.compileTemplateData = function compileTemplateData(node, frame) {
this.compileLiteral(node, frame);
};
_proto.compileCapture = function compileCapture(node, frame) {
var _this14 = this;
// we need to temporarily override the current buffer id as 'output'
// so the set block writes to the capture output instead of the buffer
var buffer = this.buffer;
this.buffer = 'output';
this._emitLine('(function() {');
this._emitLine('var output = "";');
this._withScopedSyntax(function () {
_this14.compile(node.body, frame);
});
this._emitLine('return output;');
this._emitLine('})()');
// and of course, revert back to the old buffer id
this.buffer = buffer;
};
_proto.compileOutput = function compileOutput(node, frame) {
var _this15 = this;
var children = node.children;
children.forEach(function (child) {
// TemplateData is a special case because it is never
// autoescaped, so simply output it for optimization
if (child instanceof nodes.TemplateData) {
if (child.value) {
_this15._emit(_this15.buffer + " += ");
_this15.compileLiteral(child, frame);
_this15._emitLine(';');
}
} else {
_this15._emit(_this15.buffer + " += runtime.suppressValue(");
if (_this15.throwOnUndefined) {
_this15._emit('runtime.ensureDefined(');
}
_this15.compile(child, frame);
if (_this15.throwOnUndefined) {
_this15._emit("," + node.lineno + "," + node.colno + ")");
}
_this15._emit(', env.opts.autoescape);\n');
}
});
};
_proto.compileRoot = function compileRoot(node, frame) {
var _this16 = this;
if (frame) {
this.fail('compileRoot: root node can\'t have frame');
}
frame = new Frame();
this._emitFuncBegin(node, 'root');
this._emitLine('var parentTemplate = null;');
this._compileChildren(node, frame);
this._emitLine('if(parentTemplate) {');
this._emitLine('parentTemplate.rootRenderFunc(env, context, frame, runtime, cb);');
this._emitLine('} else {');
this._emitLine("cb(null, " + this.buffer + ");");
this._emitLine('}');
this._emitFuncEnd(true);
this.inBlock = true;
var blockNames = [];
var blocks = node.findAll(nodes.Block);
blocks.forEach(function (block, i) {
var name = block.name.value;
if (blockNames.indexOf(name) !== -1) {
throw new Error("Block \"" + name + "\" defined more than once.");
}
blockNames.push(name);
_this16._emitFuncBegin(block, "b_" + name);
var tmpFrame = new Frame();
_this16._emitLine('var frame = frame.push(true);');
_this16.compile(block.body, tmpFrame);
_this16._emitFuncEnd();
});
this._emitLine('return {');
blocks.forEach(function (block, i) {
var blockName = "b_" + block.name.value;
_this16._emitLine(blockName + ": " + blockName + ",");
});
this._emitLine('root: root\n};');
};
_proto.compile = function compile(node, frame) {
var _compile = this['compile' + node.typename];
if (_compile) {
_compile.call(this, node, frame);
} else {
this.fail("compile: Cannot compile node: " + node.typename, node.lineno, node.colno);
}
};
_proto.getCode = function getCode() {
return this.codebuf.join('');
};
return Compiler;
}(Obj);
module.exports = {
compile: function compile(src, asyncFilters, extensions, name, opts) {
if (opts === void 0) {
opts = {};
}
var c = new Compiler(name, opts.throwOnUndefined);
// Run the extension preprocessors against the source.
var preprocessors = (extensions || []).map(function (ext) {
return ext.preprocess;
}).filter(function (f) {
return !!f;
});
var processedSrc = preprocessors.reduce(function (s, processor) {
return processor(s);
}, src);
c.compile(transformer.transform(parser.parse(processedSrc, extensions, opts), asyncFilters, name));
return c.getCode();
},
Compiler: Compiler
};
Zerion Mini Shell 1.0