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author | Tommy Messbauer <tommy@vast.com> | 2012-08-29 12:48:22 -0500 |
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committer | Tommy Messbauer <tommy@vast.com> | 2012-08-29 12:48:22 -0500 |
commit | 7c4813b417eaf4b9aab597dcd618857b8419f301 (patch) | |
tree | e20b27e87e710f0b988f5d8cc631859677449494 /lib/handlebars/compiler/compiler.js | |
parent | 89f5ab8aaf8c6017d4a78b2bce719be0d99f82bd (diff) | |
download | handlebars.js-7c4813b417eaf4b9aab597dcd618857b8419f301.zip handlebars.js-7c4813b417eaf4b9aab597dcd618857b8419f301.tar.gz handlebars.js-7c4813b417eaf4b9aab597dcd618857b8419f301.tar.bz2 |
Commiting initial factory code
Diffstat (limited to 'lib/handlebars/compiler/compiler.js')
-rw-r--r-- | lib/handlebars/compiler/compiler.js | 1829 |
1 files changed, 919 insertions, 910 deletions
diff --git a/lib/handlebars/compiler/compiler.js b/lib/handlebars/compiler/compiler.js index 108d055..5158294 100644 --- a/lib/handlebars/compiler/compiler.js +++ b/lib/handlebars/compiler/compiler.js @@ -1,1066 +1,1075 @@ -var Handlebars = require("./base"); -// BEGIN(BROWSER) - -/*jshint eqnull:true*/ -Handlebars.Compiler = function() {}; -Handlebars.JavaScriptCompiler = function() {}; - -(function(Compiler, JavaScriptCompiler) { - // the foundHelper register will disambiguate helper lookup from finding a - // function in a context. This is necessary for mustache compatibility, which - // requires that context functions in blocks are evaluated by blockHelperMissing, - // and then proceed as if the resulting value was provided to blockHelperMissing. - Compiler.prototype = { - compiler: Compiler, - disassemble: function() { - var opcodes = this.opcodes, opcode, out = [], params, param; +exports.attach = function(Handlebars) { - for (var i=0, l=opcodes.length; i<l; i++) { - opcode = opcodes[i]; +// BEGIN(BROWSER) - if (opcode.opcode === 'DECLARE') { - out.push("DECLARE " + opcode.name + "=" + opcode.value); - } else { - params = []; - for (var j=0; j<opcode.args.length; j++) { - param = opcode.args[j]; - if (typeof param === "string") { - param = "\"" + param.replace("\n", "\\n") + "\""; + /*jshint eqnull:true*/ + Handlebars.Compiler = function() {}; + Handlebars.JavaScriptCompiler = function() {}; + + (function(Compiler, JavaScriptCompiler) { + // the foundHelper register will disambiguate helper lookup from finding a + // function in a context. This is necessary for mustache compatibility, which + // requires that context functions in blocks are evaluated by blockHelperMissing, + // and then proceed as if the resulting value was provided to blockHelperMissing. + + Compiler.prototype = { + compiler: Compiler, + + disassemble: function() { + var opcodes = this.opcodes, opcode, out = [], params, param; + + for (var i=0, l=opcodes.length; i<l; i++) { + opcode = opcodes[i]; + + if (opcode.opcode === 'DECLARE') { + out.push("DECLARE " + opcode.name + "=" + opcode.value); + } else { + params = []; + for (var j=0; j<opcode.args.length; j++) { + param = opcode.args[j]; + if (typeof param === "string") { + param = "\"" + param.replace("\n", "\\n") + "\""; + } + params.push(param); } - params.push(param); + out.push(opcode.opcode + " " + params.join(" ")); } - out.push(opcode.opcode + " " + params.join(" ")); } - } - return out.join("\n"); - }, - - guid: 0, - - compile: function(program, options) { - this.children = []; - this.depths = {list: []}; - this.options = options; - - // These changes will propagate to the other compiler components - var knownHelpers = this.options.knownHelpers; - this.options.knownHelpers = { - 'helperMissing': true, - 'blockHelperMissing': true, - 'each': true, - 'if': true, - 'unless': true, - 'with': true, - 'log': true - }; - if (knownHelpers) { - for (var name in knownHelpers) { - this.options.knownHelpers[name] = knownHelpers[name]; + return out.join("\n"); + }, + + guid: 0, + + compile: function(program, options) { + this.children = []; + this.depths = {list: []}; + this.options = options; + + // These changes will propagate to the other compiler components + var knownHelpers = this.options.knownHelpers; + this.options.knownHelpers = { + 'helperMissing': true, + 'blockHelperMissing': true, + 'each': true, + 'if': true, + 'unless': true, + 'with': true, + 'log': true + }; + if (knownHelpers) { + for (var name in knownHelpers) { + this.options.knownHelpers[name] = knownHelpers[name]; + } } - } - return this.program(program); - }, + return this.program(program); + }, - accept: function(node) { - return this[node.type](node); - }, + accept: function(node) { + return this[node.type](node); + }, - program: function(program) { - var statements = program.statements, statement; - this.opcodes = []; + program: function(program) { + var statements = program.statements, statement; + this.opcodes = []; - for(var i=0, l=statements.length; i<l; i++) { - statement = statements[i]; - this[statement.type](statement); - } - this.isSimple = l === 1; + for(var i=0, l=statements.length; i<l; i++) { + statement = statements[i]; + this[statement.type](statement); + } + this.isSimple = l === 1; - this.depths.list = this.depths.list.sort(function(a, b) { - return a - b; - }); + this.depths.list = this.depths.list.sort(function(a, b) { + return a - b; + }); - return this; - }, + return this; + }, - compileProgram: function(program) { - var result = new this.compiler().compile(program, this.options); - var guid = this.guid++, depth; + compileProgram: function(program) { + var result = new this.compiler().compile(program, this.options); + var guid = this.guid++, depth; - this.usePartial = this.usePartial || result.usePartial; + this.usePartial = this.usePartial || result.usePartial; - this.children[guid] = result; + this.children[guid] = result; - for(var i=0, l=result.depths.list.length; i<l; i++) { - depth = result.depths.list[i]; + for(var i=0, l=result.depths.list.length; i<l; i++) { + depth = result.depths.list[i]; - if(depth < 2) { continue; } - else { this.addDepth(depth - 1); } - } + if(depth < 2) { continue; } + else { this.addDepth(depth - 1); } + } - return guid; - }, + return guid; + }, - block: function(block) { - var mustache = block.mustache, - program = block.program, - inverse = block.inverse; + block: function(block) { + var mustache = block.mustache, + program = block.program, + inverse = block.inverse; - if (program) { - program = this.compileProgram(program); - } + if (program) { + program = this.compileProgram(program); + } - if (inverse) { - inverse = this.compileProgram(inverse); - } + if (inverse) { + inverse = this.compileProgram(inverse); + } - var type = this.classifyMustache(mustache); + var type = this.classifyMustache(mustache); - if (type === "helper") { - this.helperMustache(mustache, program, inverse); - } else if (type === "simple") { - this.simpleMustache(mustache); + if (type === "helper") { + this.helperMustache(mustache, program, inverse); + } else if (type === "simple") { + this.simpleMustache(mustache); - // now that the simple mustache is resolved, we need to - // evaluate it by executing `blockHelperMissing` - this.opcode('pushProgram', program); - this.opcode('pushProgram', inverse); - this.opcode('pushLiteral', '{}'); - this.opcode('blockValue'); - } else { - this.ambiguousMustache(mustache, program, inverse); + // now that the simple mustache is resolved, we need to + // evaluate it by executing `blockHelperMissing` + this.opcode('pushProgram', program); + this.opcode('pushProgram', inverse); + this.opcode('pushLiteral', '{}'); + this.opcode('blockValue'); + } else { + this.ambiguousMustache(mustache, program, inverse); + + // now that the simple mustache is resolved, we need to + // evaluate it by executing `blockHelperMissing` + this.opcode('pushProgram', program); + this.opcode('pushProgram', inverse); + this.opcode('pushLiteral', '{}'); + this.opcode('ambiguousBlockValue'); + } - // now that the simple mustache is resolved, we need to - // evaluate it by executing `blockHelperMissing` - this.opcode('pushProgram', program); - this.opcode('pushProgram', inverse); - this.opcode('pushLiteral', '{}'); - this.opcode('ambiguousBlockValue'); - } + this.opcode('append'); + }, - this.opcode('append'); - }, + hash: function(hash) { + var pairs = hash.pairs, pair, val; - hash: function(hash) { - var pairs = hash.pairs, pair, val; + this.opcode('push', '{}'); - this.opcode('push', '{}'); + for(var i=0, l=pairs.length; i<l; i++) { + pair = pairs[i]; + val = pair[1]; - for(var i=0, l=pairs.length; i<l; i++) { - pair = pairs[i]; - val = pair[1]; + this.accept(val); + this.opcode('assignToHash', pair[0]); + } + }, - this.accept(val); - this.opcode('assignToHash', pair[0]); - } - }, + partial: function(partial) { + var id = partial.id; + this.usePartial = true; - partial: function(partial) { - var id = partial.id; - this.usePartial = true; + if(partial.context) { + this.ID(partial.context); + } else { + this.opcode('push', 'depth0'); + } - if(partial.context) { - this.ID(partial.context); - } else { - this.opcode('push', 'depth0'); - } + this.opcode('invokePartial', id.original); + this.opcode('append'); + }, - this.opcode('invokePartial', id.original); - this.opcode('append'); - }, + content: function(content) { + this.opcode('appendContent', content.string); + }, - content: function(content) { - this.opcode('appendContent', content.string); - }, + mustache: function(mustache) { + var options = this.options; + var type = this.classifyMustache(mustache); - mustache: function(mustache) { - var options = this.options; - var type = this.classifyMustache(mustache); + if (type === "simple") { + this.simpleMustache(mustache); + } else if (type === "helper") { + this.helperMustache(mustache); + } else { + this.ambiguousMustache(mustache); + } - if (type === "simple") { - this.simpleMustache(mustache); - } else if (type === "helper") { - this.helperMustache(mustache); - } else { - this.ambiguousMustache(mustache); - } + if(mustache.escaped && !options.noEscape) { + this.opcode('appendEscaped'); + } else { + this.opcode('append'); + } + }, - if(mustache.escaped && !options.noEscape) { - this.opcode('appendEscaped'); - } else { - this.opcode('append'); - } - }, + ambiguousMustache: function(mustache, program, inverse) { + var id = mustache.id, name = id.parts[0]; - ambiguousMustache: function(mustache, program, inverse) { - var id = mustache.id, name = id.parts[0]; + this.opcode('getContext', id.depth); - this.opcode('getContext', id.depth); + this.opcode('pushProgram', program); + this.opcode('pushProgram', inverse); - this.opcode('pushProgram', program); - this.opcode('pushProgram', inverse); + this.opcode('invokeAmbiguous', name); + }, - this.opcode('invokeAmbiguous', name); - }, + simpleMustache: function(mustache, program, inverse) { + var id = mustache.id; - simpleMustache: function(mustache, program, inverse) { - var id = mustache.id; + if (id.type === 'DATA') { + this.DATA(id); + } else if (id.parts.length) { + this.ID(id); + } else { + // Simplified ID for `this` + this.addDepth(id.depth); + this.opcode('getContext', id.depth); + this.opcode('pushContext'); + } + + this.opcode('resolvePossibleLambda'); + }, + + helperMustache: function(mustache, program, inverse) { + var params = this.setupFullMustacheParams(mustache, program, inverse), + name = mustache.id.parts[0]; + + if (this.options.knownHelpers[name]) { + this.opcode('invokeKnownHelper', params.length, name); + } else if (this.knownHelpersOnly) { + throw new Error("You specified knownHelpersOnly, but used the unknown helper " + name); + } else { + this.opcode('invokeHelper', params.length, name); + } + }, - if (id.type === 'DATA') { - this.DATA(id); - } else if (id.parts.length) { - this.ID(id); - } else { - // Simplified ID for `this` + ID: function(id) { this.addDepth(id.depth); this.opcode('getContext', id.depth); - this.opcode('pushContext'); - } - this.opcode('resolvePossibleLambda'); - }, + var name = id.parts[0]; + if (!name) { + this.opcode('pushContext'); + } else { + this.opcode('lookupOnContext', id.parts[0]); + } + + for(var i=1, l=id.parts.length; i<l; i++) { + this.opcode('lookup', id.parts[i]); + } + }, - helperMustache: function(mustache, program, inverse) { - var params = this.setupFullMustacheParams(mustache, program, inverse), - name = mustache.id.parts[0]; + DATA: function(data) { + this.options.data = true; + this.opcode('lookupData', data.id); + }, - if (this.options.knownHelpers[name]) { - this.opcode('invokeKnownHelper', params.length, name); - } else if (this.knownHelpersOnly) { - throw new Error("You specified knownHelpersOnly, but used the unknown helper " + name); - } else { - this.opcode('invokeHelper', params.length, name); - } - }, + STRING: function(string) { + this.opcode('pushString', string.string); + }, - ID: function(id) { - this.addDepth(id.depth); - this.opcode('getContext', id.depth); + INTEGER: function(integer) { + this.opcode('pushLiteral', integer.integer); + }, - var name = id.parts[0]; - if (!name) { - this.opcode('pushContext'); - } else { - this.opcode('lookupOnContext', id.parts[0]); - } + BOOLEAN: function(bool) { + this.opcode('pushLiteral', bool.bool); + }, - for(var i=1, l=id.parts.length; i<l; i++) { - this.opcode('lookup', id.parts[i]); - } - }, + comment: function() {}, - DATA: function(data) { - this.options.data = true; - this.opcode('lookupData', data.id); - }, + // HELPERS + opcode: function(name) { + this.opcodes.push({ opcode: name, args: [].slice.call(arguments, 1) }); + }, - STRING: function(string) { - this.opcode('pushString', string.string); - }, + declare: function(name, value) { + this.opcodes.push({ opcode: 'DECLARE', name: name, value: value }); + }, - INTEGER: function(integer) { - this.opcode('pushLiteral', integer.integer); - }, + addDepth: function(depth) { + if(isNaN(depth)) { throw new Error("EWOT"); } + if(depth === 0) { return; } - BOOLEAN: function(bool) { - this.opcode('pushLiteral', bool.bool); - }, + if(!this.depths[depth]) { + this.depths[depth] = true; + this.depths.list.push(depth); + } + }, - comment: function() {}, + classifyMustache: function(mustache) { + var isHelper = mustache.isHelper; + var isEligible = mustache.eligibleHelper; + var options = this.options; - // HELPERS - opcode: function(name) { - this.opcodes.push({ opcode: name, args: [].slice.call(arguments, 1) }); - }, + // if ambiguous, we can possibly resolve the ambiguity now + if (isEligible && !isHelper) { + var name = mustache.id.parts[0]; - declare: function(name, value) { - this.opcodes.push({ opcode: 'DECLARE', name: name, value: value }); - }, + if (options.knownHelpers[name]) { + isHelper = true; + } else if (options.knownHelpersOnly) { + isEligible = false; + } + } - addDepth: function(depth) { - if(isNaN(depth)) { throw new Error("EWOT"); } - if(depth === 0) { return; } + if (isHelper) { return "helper"; } + else if (isEligible) { return "ambiguous"; } + else { return "simple"; } + }, - if(!this.depths[depth]) { - this.depths[depth] = true; - this.depths.list.push(depth); - } - }, + pushParams: function(params) { + var i = params.length, param; - classifyMustache: function(mustache) { - var isHelper = mustache.isHelper; - var isEligible = mustache.eligibleHelper; - var options = this.options; + while(i--) { + param = params[i]; - // if ambiguous, we can possibly resolve the ambiguity now - if (isEligible && !isHelper) { - var name = mustache.id.parts[0]; + if(this.options.stringParams) { + if(param.depth) { + this.addDepth(param.depth); + } - if (options.knownHelpers[name]) { - isHelper = true; - } else if (options.knownHelpersOnly) { - isEligible = false; + this.opcode('getContext', param.depth || 0); + this.opcode('pushStringParam', param.string); + } else { + this[param.type](param); + } } - } + }, - if (isHelper) { return "helper"; } - else if (isEligible) { return "ambiguous"; } - else { return "simple"; } - }, + setupMustacheParams: function(mustache) { + var params = mustache.params; + this.pushParams(params); - pushParams: function(params) { - var i = params.length, param; + if(mustache.hash) { + this.hash(mustache.hash); + } else { + this.opcode('pushLiteral', '{}'); + } - while(i--) { - param = params[i]; + return params; + }, - if(this.options.stringParams) { - if(param.depth) { - this.addDepth(param.depth); - } + // this will replace setupMustacheParams when we're done + setupFullMustacheParams: function(mustache, program, inverse) { + var params = mustache.params; + this.pushParams(params); - this.opcode('getContext', param.depth || 0); - this.opcode('pushStringParam', param.string); + this.opcode('pushProgram', program); + this.opcode('pushProgram', inverse); + + if(mustache.hash) { + this.hash(mustache.hash); } else { - this[param.type](param); + this.opcode('pushLiteral', '{}'); } - } - }, - - setupMustacheParams: function(mustache) { - var params = mustache.params; - this.pushParams(params); - if(mustache.hash) { - this.hash(mustache.hash); - } else { - this.opcode('pushLiteral', '{}'); + return params; } + }; + + var Literal = function(value) { + this.value = value; + }; + + JavaScriptCompiler.prototype = { + // PUBLIC API: You can override these methods in a subclass to provide + // alternative compiled forms for name lookup and buffering semantics + nameLookup: function(parent, name, type) { + if (/^[0-9]+$/.test(name)) { + return parent + "[" + name + "]"; + } else if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) { + return parent + "." + name; + } + else { + return parent + "['" + name + "']"; + } + }, - return params; - }, + appendToBuffer: function(string) { + if (this.environment.isSimple) { + return "return " + string + ";"; + } else { + return "buffer += " + string + ";"; + } + }, - // this will replace setupMustacheParams when we're done - setupFullMustacheParams: function(mustache, program, inverse) { - var params = mustache.params; - this.pushParams(params); + initializeBuffer: function() { + return this.quotedString(""); + }, - this.opcode('pushProgram', program); - this.opcode('pushProgram', inverse); + namespace: "Handlebars", + // END PUBLIC API - if(mustache.hash) { - this.hash(mustache.hash); - } else { - this.opcode('pushLiteral', '{}'); - } + compile: function(environment, options, context, asObject) { + this.environment = environment; + this.options = options || {}; - return params; - } - }; - - var Literal = function(value) { - this.value = value; - }; + Handlebars.log(Handlebars.logger.DEBUG, this.environment.disassemble() + "\n\n"); - JavaScriptCompiler.prototype = { - // PUBLIC API: You can override these methods in a subclass to provide - // alternative compiled forms for name lookup and buffering semantics - nameLookup: function(parent, name, type) { - if (/^[0-9]+$/.test(name)) { - return parent + "[" + name + "]"; - } else if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) { - return parent + "." + name; - } - else { - return parent + "['" + name + "']"; - } - }, + this.name = this.environment.name; + this.isChild = !!context; + this.context = context || { + programs: [], + aliases: { } + }; - appendToBuffer: function(string) { - if (this.environment.isSimple) { - return "return " + string + ";"; - } else { - return "buffer += " + string + ";"; - } - }, + this.preamble(); - initializeBuffer: function() { - return this.quotedString(""); - }, + this.stackSlot = 0; + this.stackVars = []; + this.registers = { list: [] }; + this.compileStack = []; - namespace: "Handlebars", - // END PUBLIC API + this.compileChildren(environment, options); - compile: function(environment, options, context, asObject) { - this.environment = environment; - this.options = options || {}; + var opcodes = environment.opcodes, opcode; - Handlebars.log(Handlebars.logger.DEBUG, this.environment.disassemble() + "\n\n"); + this.i = 0; - this.name = this.environment.name; - this.isChild = !!context; - this.context = context || { - programs: [], - aliases: { } - }; + for(l=opcodes.length; this.i<l; this.i++) { + opcode = opcodes[this.i]; - this.preamble(); + if(opcode.opcode === 'DECLARE') { + this[opcode.name] = opcode.value; + } else { + this[opcode.opcode].apply(this, opcode.args); + } + } - this.stackSlot = 0; - this.stackVars = []; - this.registers = { list: [] }; - this.compileStack = []; + return this.createFunctionContext(asObject); + }, - this.compileChildren(environment, options); + nextOpcode: function() { + var opcodes = this.environment.opcodes, opcode = opcodes[this.i + 1]; + return opcodes[this.i + 1]; + }, - var opcodes = environment.opcodes, opcode; + eat: function(opcode) { + this.i = this.i + 1; + }, - this.i = 0; + preamble: function() { + var out = []; - for(l=opcodes.length; this.i<l; this.i++) { - opcode = opcodes[this.i]; + if (!this.isChild) { + var namespace = this.namespace; + var copies = "helpers = helpers || " + namespace + ".helpers;"; + if (this.environment.usePartial) { copies = copies + " partials = partials || " + namespace + ".partials;"; } + if (this.options.data) { copies = copies + " data = data || {};"; } + out.push(copies); + } else { + out.push(''); + } - if(opcode.opcode === 'DECLARE') { - this[opcode.name] = opcode.value; + if (!this.environment.isSimple) { + out.push(", buffer = " + this.initializeBuffer()); } else { - this[opcode.opcode].apply(this, opcode.args); + out.push(""); } - } - return this.createFunctionContext(asObject); - }, - - nextOpcode: function() { - var opcodes = this.environment.opcodes, opcode = opcodes[this.i + 1]; - return opcodes[this.i + 1]; - }, - - eat: function(opcode) { - this.i = this.i + 1; - }, - - preamble: function() { - var out = []; - - if (!this.isChild) { - var namespace = this.namespace; - var copies = "helpers = helpers || " + namespace + ".helpers;"; - if (this.environment.usePartial) { copies = copies + " partials = partials || " + namespace + ".partials;"; } - if (this.options.data) { copies = copies + " data = data || {};"; } - out.push(copies); - } else { - out.push(''); - } + // track the last context pushed into place to allow skipping the + // getContext opcode when it would be a noop + this.lastContext = 0; + this.source = out; + }, - if (!this.environment.isSimple) { - out.push(", buffer = " + this.initializeBuffer()); - } else { - out.push(""); - } + createFunctionContext: function(asObject) { + var locals = this.stackVars.concat(this.registers.list); - // track the last context pushed into place to allow skipping the - // getContext opcode when it would be a noop - this.lastContext = 0; - this.source = out; - }, + if(locals.length > 0) { + this.source[1] = this.source[1] + ", " + locals.join(", "); + } - createFunctionContext: function(asObject) { - var locals = this.stackVars.concat(this.registers.list); + // Generate minimizer alias mappings + if (!this.isChild) { + var aliases = []; + for (var alias in this.context.aliases) { + this.source[1] = this.source[1] + ', ' + alias + '=' + this.context.aliases[alias]; + } + } - if(locals.length > 0) { - this.source[1] = this.source[1] + ", " + locals.join(", "); - } + if (this.source[1]) { + this.source[1] = "var " + this.source[1].substring(2) + ";"; + } - // Generate minimizer alias mappings - if (!this.isChild) { - var aliases = []; - for (var alias in this.context.aliases) { - this.source[1] = this.source[1] + ', ' + alias + '=' + this.context.aliases[alias]; + // Merge children + if (!this.isChild) { + this.source[1] += '\n' + this.context.programs.join('\n') + '\n'; } - } - if (this.source[1]) { - this.source[1] = "var " + this.source[1].substring(2) + ";"; - } + if (!this.environment.isSimple) { + this.source.push("return buffer;"); + } - // Merge children - if (!this.isChild) { - this.source[1] += '\n' + this.context.programs.join('\n') + '\n'; - } + var params = this.isChild ? ["depth0", "data"] : ["Handlebars", "depth0", "helpers", "partials", "data"]; - if (!this.environment.isSimple) { - this.source.push("return buffer;"); - } + for(var i=0, l=this.environment.depths.list.length; i<l; i++) { + params.push("depth" + this.environment.depths.list[i]); + } - var params = this.isChild ? ["depth0", "data"] : ["Handlebars", "depth0", "helpers", "partials", "data"]; + if (asObject) { + params.push(this.source.join("\n ")); - for(var i=0, l=this.environment.depths.list.length; i<l; i++) { - params.push("depth" + this.environment.depths.list[i]); - } + return Function.apply(this, params); + } else { + var functionSource = 'function ' + (this.name || '') + '(' + params.join(',') + ') {\n ' + this.source.join("\n ") + '}'; + Handlebars.log(Handlebars.logger.DEBUG, functionSource + "\n\n"); + return functionSource; + } + }, + + // [blockValue] + // + // On stack, before: hash, inverse, program, value + // On stack, after: return value of blockHelperMissing + // + // The purpose of this opcode is to take a block of the form + // `{{#foo}}...{{/foo}}`, resolve the value of `foo`, and + // replace it on the stack with the result of properly + // invoking blockHelperMissing. + blockValue: function() { + this.context.aliases.blockHelperMissing = 'helpers.blockHelperMissing'; + + var params = ["depth0"]; + this.setupParams(0, params); + + this.replaceStack(function(current) { + params.splice(1, 0, current); + return current + " = blockHelperMissing.call(" + params.join(", ") + ")"; + }); + }, + + // [ambiguousBlockValue] + // + // On stack, before: hash, inverse, program, value + // Compiler value, before: lastHelper=value of last found helper, if any + // On stack, after, if no lastHelper: same as [blockValue] + // On stack, after, if lastHelper: value + ambiguousBlockValue: function() { + this.context.aliases.blockHelperMissing = 'helpers.blockHelperMissing'; + + var params = ["depth0"]; + this.setupParams(0, params); + + var current = this.topStack(); + params.splice(1, 0, current); - if (asObject) { - params.push(this.source.join("\n ")); + this.source.push("if (!" + this.lastHelper + ") { " + current + " = blockHelperMissing.call(" + params.join(", ") + "); }"); + }, + + // [appendContent] + // + // On stack, before: ... + // On stack, after: ... + // + // Appends the string value of `content` to the current buffer + appendContent: function(content) { + this.source.push(this.appendToBuffer(this.quotedString(content))); + }, + + // [append] + // + // On stack, before: value, ... + // On stack, after: ... + // + // Coerces `value` to a String and appends it to the current buffer. + // + // If `value` is truthy, or 0, it is coerced into a string and appended + // Otherwise, the empty string is appended + append: function() { + var local = this.popStack(); + this.source.push("if(" + local + " || " + local + " === 0) { " + this.appendToBuffer(local) + " }"); + if (this.environment.isSimple) { + this.source.push("else { " + this.appendToBuffer("''") + " }"); + } + }, + + // [appendEscaped] + // + // On stack, before: value, ... + // On stack, after: ... + // + // Escape `value` and append it to the buffer + appendEscaped: function() { + var opcode = this.nextOpcode(), extra = ""; + this.context.aliases.escapeExpression = 'this.escapeExpression'; + + if(opcode && opcode.opcode === 'appendContent') { + extra = " + " + this.quotedString(opcode.args[0]); + this.eat(opcode); + } - return Function.apply(this, params); - } else { - var functionSource = 'function ' + (this.name || '') + '(' + params.join(',') + ') {\n ' + this.source.join("\n ") + '}'; - Handlebars.log(Handlebars.logger.DEBUG, functionSource + "\n\n"); - return functionSource; - } - }, - - // [blockValue] - // - // On stack, before: hash, inverse, program, value - // On stack, after: return value of blockHelperMissing - // - // The purpose of this opcode is to take a block of the form - // `{{#foo}}...{{/foo}}`, resolve the value of `foo`, and - // replace it on the stack with the result of properly - // invoking blockHelperMissing. - blockValue: function() { - this.context.aliases.blockHelperMissing = 'helpers.blockHelperMissing'; - - var params = ["depth0"]; - this.setupParams(0, params); - - this.replaceStack(function(current) { - params.splice(1, 0, current); - return current + " = blockHelperMissing.call(" + params.join(", ") + ")"; - }); - }, - - // [ambiguousBlockValue] - // - // On stack, before: hash, inverse, program, value - // Compiler value, before: lastHelper=value of last found helper, if any - // On stack, after, if no lastHelper: same as [blockValue] - // On stack, after, if lastHelper: value - ambiguousBlockValue: function() { - this.context.aliases.blockHelperMissing = 'helpers.blockHelperMissing'; - - var params = ["depth0"]; - this.setupParams(0, params); - - var current = this.topStack(); - params.splice(1, 0, current); - - this.source.push("if (!" + this.lastHelper + ") { " + current + " = blockHelperMissing.call(" + params.join(", ") + "); }"); - }, - - // [appendContent] - // - // On stack, before: ... - // On stack, after: ... - // - // Appends the string value of `content` to the current buffer - appendContent: function(content) { - this.source.push(this.appendToBuffer(this.quotedString(content))); - }, - - // [append] - // - // On stack, before: value, ... - // On stack, after: ... - // - // Coerces `value` to a String and appends it to the current buffer. - // - // If `value` is truthy, or 0, it is coerced into a string and appended - // Otherwise, the empty string is appended - append: function() { - var local = this.popStack(); - this.source.push("if(" + local + " || " + local + " === 0) { " + this.appendToBuffer(local) + " }"); - if (this.environment.isSimple) { - this.source.push("else { " + this.appendToBuffer("''") + " }"); - } - }, - - // [appendEscaped] - // - // On stack, before: value, ... - // On stack, after: ... - // - // Escape `value` and append it to the buffer - appendEscaped: function() { - var opcode = this.nextOpcode(), extra = ""; - this.context.aliases.escapeExpression = 'this.escapeExpression'; - - if(opcode && opcode.opcode === 'appendContent') { - extra = " + " + this.quotedString(opcode.args[0]); - this.eat(opcode); - } + this.source.push(this.appendToBuffer("escapeExpression(" + this.popStack() + ")" + extra)); + }, + + // [getContext] + // + // On stack, before: ... + // On stack, after: ... + // Compiler value, after: lastContext=depth + // + // Set the value of the `lastContext` compiler value to the depth + getContext: function(depth) { + if(this.lastContext !== depth) { + this.lastContext = depth; + } + }, + + // [lookupOnContext] + // + // On stack, before: ... + // On stack, after: currentContext[name], ... + // + // Looks up the value of `name` on the current context and pushes + // it onto the stack. + lookupOnContext: function(name) { + this.pushStack(this.nameLookup('depth' + this.lastContext, name, 'context')); + }, + + // [pushContext] + // + // On stack, before: ... + // On stack, after: currentContext, ... + // + // Pushes the value of the current context onto the stack. + pushContext: function() { + this.pushStackLiteral('depth' + this.lastContext); + }, + + // [resolvePossibleLambda] + // + // On stack, before: value, ... + // On stack, after: resolved value, ... + // + // If the `value` is a lambda, replace it on the stack by + // the return value of the lambda + resolvePossibleLambda: function() { + this.context.aliases.functionType = '"function"'; + + this.replaceStack(function(current) { + return "typeof " + current + " === functionType ? " + current + "() : " + current; + }); + }, + + // [lookup] + // + // On stack, before: value, ... + // On stack, after: value[name], ... + // + // Replace the value on the stack with the result of looking + // up `name` on `value` + lookup: function(name) { + this.replaceStack(function(current) { + return current + " == null || " + current + " === false ? " + current + " : " + this.nameLookup(current, name, 'context'); + }); + }, + + // [lookupData] + // + // On stack, before: ... + // On stack, after: data[id], ... + // + // Push the result of looking up `id` on the current data + lookupData: function(id) { + this.pushStack(this.nameLookup('data', id, 'data')); + }, + + // [pushStringParam] + // + // On stack, before: ... + // On stack, after: string, currentContext, ... + // + // This opcode is designed for use in string mode, which + // provides the string value of a parameter along with its + // depth rather than resolving it immediately. + pushStringParam: function(string) { + this.pushStackLiteral('depth' + this.lastContext); + this.pushString(string); + }, + + // [pushString] + // + // On stack, before: ... + // On stack, after: quotedString(string), ... + // + // Push a quoted version of `string` onto the stack + pushString: function(string) { + this.pushStackLiteral(this.quotedString(string)); + }, + + // [push] + // + // On stack, before: ... + // On stack, after: expr, ... + // + // Push an expression onto the stack + push: function(expr) { + this.pushStack(expr); + }, + + // [pushLiteral] + // + // On stack, before: ... + // On stack, after: value, ... + // + // Pushes a value onto the stack. This operation prevents + // the compiler from creating a temporary variable to hold + // it. + pushLiteral: function(value) { + this.pushStackLiteral(value); + }, + + // [pushProgram] + // + // On stack, before: ... + // On stack, after: program(guid), ... + // + // Push a program expression onto the stack. This takes + // a compile-time guid and converts it into a runtime-accessible + // expression. + pushProgram: function(guid) { + if (guid != null) { + this.pushStackLiteral(this.programExpression(guid)); + } else { + this.pushStackLiteral(null); + } + }, + + // [invokeHelper] + // + // On stack, before: hash, inverse, program, params..., ... + // On stack, after: result of helper invocation + // + // Pops off the helper's parameters, invokes the helper, + // and pushes the helper's return value onto the stack. + // + // If the helper is not found, `helperMissing` is called. + invokeHelper: function(paramSize, name) { + this.context.aliases.helperMissing = 'helpers.helperMissing'; + + var helper = this.lastHelper = this.setupHelper(paramSize, name); + this.register('foundHelper', helper.name); + + this.pushStack("foundHelper ? foundHelper.call(" + + helper.callParams + ") " + ": helperMissing.call(" + + helper.helperMissingParams + ")"); + }, + + // [invokeKnownHelper] + // + // On stack, before: hash, inverse, program, params..., ... + // On stack, after: result of helper invocation + // + // This operation is used when the helper is known to exist, + // so a `helperMissing` fallback is not required. + invokeKnownHelper: function(paramSize, name) { + var helper = this.setupHelper(paramSize, name); + this.pushStack(helper.name + ".call(" + helper.callParams + ")"); + }, + + // [invokeAmbiguous] + // + // On stack, before: hash, inverse, program, params..., ... + // On stack, after: result of disambiguation + // + // This operation is used when an expression like `{{foo}}` + // is provided, but we don't know at compile-time whether it + // is a helper or a path. + // + // This operation emits more code than the other options, + // and can be avoided by passing the `knownHelpers` and + // `knownHelpersOnly` flags at compile-time. + invokeAmbiguous: function(name) { + this.context.aliases.functionType = '"function"'; + + this.pushStackLiteral('{}'); + var helper = this.setupHelper(0, name); + + var helperName = this.lastHelper = this.nameLookup('helpers', name, 'helper'); + this.register('foundHelper', helperName); + + var nonHelper = this.nameLookup('depth' + this.lastContext, name, 'context'); + var nextStack = this.nextStack(); + + this.source.push('if (foundHelper) { ' + nextStack + ' = foundHelper.call(' + helper.callParams + '); }'); + this.source.push('else { ' + nextStack + ' = ' + nonHelper + '; ' + nextStack + ' = typeof ' + nextStack + ' === functionType ? ' + nextStack + '() : ' + nextStack + '; }'); + }, + + // [invokePartial] + // + // On stack, before: context, ... + // On stack after: result of partial invocation + // + // This operation pops off a context, invokes a partial with that context, + // and pushes the result of the invocation back. + invokePartial: function(name) { + var params = [this.nameLookup('partials', name, 'partial'), "'" + name + "'", this.popStack(), "helpers", "partials"]; + + if (this.options.data) { + params.push("data"); + } - this.source.push(this.appendToBuffer("escapeExpression(" + this.popStack() + ")" + extra)); - }, - - // [getContext] - // - // On stack, before: ... - // On stack, after: ... - // Compiler value, after: lastContext=depth - // - // Set the value of the `lastContext` compiler value to the depth - getContext: function(depth) { - if(this.lastContext !== depth) { - this.lastContext = depth; - } - }, - - // [lookupOnContext] - // - // On stack, before: ... - // On stack, after: currentContext[name], ... - // - // Looks up the value of `name` on the current context and pushes - // it onto the stack. - lookupOnContext: function(name) { - this.pushStack(this.nameLookup('depth' + this.lastContext, name, 'context')); - }, - - // [pushContext] - // - // On stack, before: ... - // On stack, after: currentContext, ... - // - // Pushes the value of the current context onto the stack. - pushContext: function() { - this.pushStackLiteral('depth' + this.lastContext); - }, - - // [resolvePossibleLambda] - // - // On stack, before: value, ... - // On stack, after: resolved value, ... - // - // If the `value` is a lambda, replace it on the stack by - // the return value of the lambda - resolvePossibleLambda: function() { - this.context.aliases.functionType = '"function"'; - - this.replaceStack(function(current) { - return "typeof " + current + " === functionType ? " + current + "() : " + current; - }); - }, - - // [lookup] - // - // On stack, before: value, ... - // On stack, after: value[name], ... - // - // Replace the value on the stack with the result of looking - // up `name` on `value` - lookup: function(name) { - this.replaceStack(function(current) { - return current + " == null || " + current + " === false ? " + current + " : " + this.nameLookup(current, name, 'context'); - }); - }, - - // [lookupData] - // - // On stack, before: ... - // On stack, after: data[id], ... - // - // Push the result of looking up `id` on the current data - lookupData: function(id) { - this.pushStack(this.nameLookup('data', id, 'data')); - }, - - // [pushStringParam] - // - // On stack, before: ... - // On stack, after: string, currentContext, ... - // - // This opcode is designed for use in string mode, which - // provides the string value of a parameter along with its - // depth rather than resolving it immediately. - pushStringParam: function(string) { - this.pushStackLiteral('depth' + this.lastContext); - this.pushString(string); - }, - - // [pushString] - // - // On stack, before: ... - // On stack, after: quotedString(string), ... - // - // Push a quoted version of `string` onto the stack - pushString: function(string) { - this.pushStackLiteral(this.quotedString(string)); - }, - - // [push] - // - // On stack, before: ... - // On stack, after: expr, ... - // - // Push an expression onto the stack - push: function(expr) { - this.pushStack(expr); - }, - - // [pushLiteral] - // - // On stack, before: ... - // On stack, after: value, ... - // - // Pushes a value onto the stack. This operation prevents - // the compiler from creating a temporary variable to hold - // it. - pushLiteral: function(value) { - this.pushStackLiteral(value); - }, - - // [pushProgram] - // - // On stack, before: ... - // On stack, after: program(guid), ... - // - // Push a program expression onto the stack. This takes - // a compile-time guid and converts it into a runtime-accessible - // expression. - pushProgram: function(guid) { - if (guid != null) { - this.pushStackLiteral(this.programExpression(guid)); - } else { - this.pushStackLiteral(null); - } - }, - - // [invokeHelper] - // - // On stack, before: hash, inverse, program, params..., ... - // On stack, after: result of helper invocation - // - // Pops off the helper's parameters, invokes the helper, - // and pushes the helper's return value onto the stack. - // - // If the helper is not found, `helperMissing` is called. - invokeHelper: function(paramSize, name) { - this.context.aliases.helperMissing = 'helpers.helperMissing'; - - var helper = this.lastHelper = this.setupHelper(paramSize, name); - this.register('foundHelper', helper.name); - - this.pushStack("foundHelper ? foundHelper.call(" + - helper.callParams + ") " + ": helperMissing.call(" + - helper.helperMissingParams + ")"); - }, - - // [invokeKnownHelper] - // - // On stack, before: hash, inverse, program, params..., ... - // On stack, after: result of helper invocation - // - // This operation is used when the helper is known to exist, - // so a `helperMissing` fallback is not required. - invokeKnownHelper: function(paramSize, name) { - var helper = this.setupHelper(paramSize, name); - this.pushStack(helper.name + ".call(" + helper.callParams + ")"); - }, - - // [invokeAmbiguous] - // - // On stack, before: hash, inverse, program, params..., ... - // On stack, after: result of disambiguation - // - // This operation is used when an expression like `{{foo}}` - // is provided, but we don't know at compile-time whether it - // is a helper or a path. - // - // This operation emits more code than the other options, - // and can be avoided by passing the `knownHelpers` and - // `knownHelpersOnly` flags at compile-time. - invokeAmbiguous: function(name) { - this.context.aliases.functionType = '"function"'; - - this.pushStackLiteral('{}'); - var helper = this.setupHelper(0, name); - - var helperName = this.lastHelper = this.nameLookup('helpers', name, 'helper'); - this.register('foundHelper', helperName); - - var nonHelper = this.nameLookup('depth' + this.lastContext, name, 'context'); - var nextStack = this.nextStack(); - - this.source.push('if (foundHelper) { ' + nextStack + ' = foundHelper.call(' + helper.callParams + '); }'); - this.source.push('else { ' + nextStack + ' = ' + nonHelper + '; ' + nextStack + ' = typeof ' + nextStack + ' === functionType ? ' + nextStack + '() : ' + nextStack + '; }'); - }, - - // [invokePartial] - // - // On stack, before: context, ... - // On stack after: result of partial invocation - // - // This operation pops off a context, invokes a partial with that context, - // and pushes the result of the invocation back. - invokePartial: function(name) { - var params = [this.nameLookup('partials', name, 'partial'), "'" + name + "'", this.popStack(), "helpers", "partials"]; - - if (this.options.data) { - params.push("data"); - } + this.context.aliases.self = "this"; + this.pushStack("self.invokePartial(" + params.join(", ") + ");"); + }, - this.context.aliases.self = "this"; - this.pushStack("self.invokePartial(" + params.join(", ") + ");"); - }, + // [assignToHash] + // + // On stack, before: value, hash, ... + // On stack, after: hash, ... + // + // Pops a value and hash off the stack, assigns `hash[key] = value` + // and pushes the hash back onto the stack. + assignToHash: function(key) { + var value = this.popStack(); + var hash = this.topStack(); - // [assignToHash] - // - // On stack, before: value, hash, ... - // On stack, after: hash, ... - // - // Pops a value and hash off the stack, assigns `hash[key] = value` - // and pushes the hash back onto the stack. - assignToHash: function(key) { - var value = this.popStack(); - var hash = this.topStack(); + this.source.push(hash + "['" + key + "'] = " + value + ";"); + }, - this.source.push(hash + "['" + key + "'] = " + value + ";"); - }, + // HELPERS - // HELPERS + compiler: JavaScriptCompiler, - compiler: JavaScriptCompiler, + compileChildren: function(environment, options) { + var children = environment.children, child, compiler; - compileChildren: function(environment, options) { - var children = environment.children, child, compiler; + for(var i=0, l=children.length; i<l; i++) { + child = children[i]; + compiler = new this.compiler(); - for(var i=0, l=children.length; i<l; i++) { - child = children[i]; - compiler = new this.compiler(); + this.context.programs.push(''); // Placeholder to prevent name conflicts for nested children + var index = this.context.programs.length; + child.index = index; + child.name = 'program' + index; + this.context.programs[index] = compiler.compile(child, options, this.context); + } + }, - this.context.programs.push(''); // Placeholder to prevent name conflicts for nested children - var index = this.context.programs.length; - child.index = index; - child.name = 'program' + index; - this.context.programs[index] = compiler.compile(child, options, this.context); - } - }, + programExpression: function(guid) { + this.context.aliases.self = "this"; - programExpression: function(guid) { - this.context.aliases.self = "this"; + if(guid == null) { + return "self.noop"; + } - if(guid == null) { - return "self.noop"; - } + var child = this.environment.children[guid], + depths = child.depths.list, depth; - var child = this.environment.children[guid], - depths = child.depths.list, depth; + var programParams = [child.index, child.name, "data"]; - var programParams = [child.index, child.name, "data"]; + for(var i=0, l = depths.length; i<l; i++) { + depth = depths[i]; - for(var i=0, l = depths.length; i<l; i++) { - depth = depths[i]; + if(depth === 1) { programParams.push("depth0"); } + else { programParams.push("depth" + (depth - 1)); } + } - if(depth === 1) { programParams.push("depth0"); } - else { programParams.push("depth" + (depth - 1)); } - } + if(depths.length === 0) { + return "self.program(" + programParams.join(", ") + ")"; + } else { + programParams.shift(); + return "self.programWithDepth(" + programParams.join(", ") + ")"; + } + }, - if(depths.length === 0) { - return "self.program(" + programParams.join(", ") + ")"; - } else { - programParams.shift(); - return "self.programWithDepth(" + programParams.join(", ") + ")"; - } - }, + register: function(name, val) { + this.useRegister(name); + this.source.push(name + " = " + val + ";"); + }, - register: function(name, val) { - this.useRegister(name); - this.source.push(name + " = " + val + ";"); - }, + useRegister: function(name) { + if(!this.registers[name]) { + this.registers[name] = true; + this.registers.list.push(name); + } + }, - useRegister: function(name) { - if(!this.registers[name]) { - this.registers[name] = true; - this.registers.list.push(name); - } - }, - - pushStackLiteral: function(item) { - this.compileStack.push(new Literal(item)); - return item; - }, - - pushStack: function(item) { - this.source.push(this.incrStack() + " = " + item + ";"); - this.compileStack.push("stack" + this.stackSlot); - return "stack" + this.stackSlot; - }, - - replaceStack: function(callback) { - var item = callback.call(this, this.topStack()); - - this.source.push(this.topStack() + " = " + item + ";"); - return "stack" + this.stackSlot; - }, - - nextStack: function(skipCompileStack) { - var name = this.incrStack(); - this.compileStack.push("stack" + this.stackSlot); - return name; - }, - - incrStack: function() { - this.stackSlot++; - if(this.stackSlot > this.stackVars.length) { this.stackVars.push("stack" + this.stackSlot); } - return "stack" + this.stackSlot; - }, - - popStack: function() { - var item = this.compileStack.pop(); - - if (item instanceof Literal) { - return item.value; - } else { - this.stackSlot--; + pushStackLiteral: function(item) { + this.compileStack.push(new Literal(item)); return item; - } - }, + }, + + pushStack: function(item) { + this.source.push(this.incrStack() + " = " + item + ";"); + this.compileStack.push("stack" + this.stackSlot); + return "stack" + this.stackSlot; + }, + + replaceStack: function(callback) { + var item = callback.call(this, this.topStack()); + + this.source.push(this.topStack() + " = " + item + ";"); + return "stack" + this.stackSlot; + }, + + nextStack: function(skipCompileStack) { + var name = this.incrStack(); + this.compileStack.push("stack" + this.stackSlot); + return name; + }, + + incrStack: function() { + this.stackSlot++; + if(this.stackSlot > this.stackVars.length) { this.stackVars.push("stack" + this.stackSlot); } + return "stack" + this.stackSlot; + }, + + popStack: function() { + var item = this.compileStack.pop(); + + if (item instanceof Literal) { + return item.value; + } else { + this.stackSlot--; + return item; + } + }, - topStack: function() { - var item = this.compileStack[this.compileStack.length - 1]; + topStack: function() { + var item = this.compileStack[this.compileStack.length - 1]; - if (item instanceof Literal) { - return item.value; - } else { - return item; - } - }, - - quotedString: function(str) { - return '"' + str - .replace(/\\/g, '\\\\') - .replace(/"/g, '\\"') - .replace(/\n/g, '\\n') - .replace(/\r/g, '\\r') + '"'; - }, - - setupHelper: function(paramSize, name) { - var params = []; - this.setupParams(paramSize, params); - var foundHelper = this.nameLookup('helpers', name, 'helper'); - - return { - params: params, - name: foundHelper, - callParams: ["depth0"].concat(params).join(", "), - helperMissingParams: ["depth0", this.quotedString(name)].concat(params).join(", ") - }; - }, - - // the params and contexts arguments are passed in arrays - // to fill in - setupParams: function(paramSize, params) { - var options = [], contexts = [], param, inverse, program; - - options.push("hash:" + this.popStack()); - - inverse = this.popStack(); - program = this.popStack(); - - // Avoid setting fn and inverse if neither are set. This allows - // helpers to do a check for `if (options.fn)` - if (program || inverse) { - if (!program) { - this.context.aliases.self = "this"; - program = "self.noop"; + if (item instanceof Literal) { + return item.value; + } else { + return item; } + }, + + quotedString: function(str) { + return '"' + str + .replace(/\\/g, '\\\\') + .replace(/"/g, '\\"') + .replace(/\n/g, '\\n') + .replace(/\r/g, '\\r') + '"'; + }, + + setupHelper: function(paramSize, name) { + var params = []; + this.setupParams(paramSize, params); + var foundHelper = this.nameLookup('helpers', name, 'helper'); + + return { + params: params, + name: foundHelper, + callParams: ["depth0"].concat(params).join(", "), + helperMissingParams: ["depth0", this.quotedString(name)].concat(params).join(", ") + }; + }, + + // the params and contexts arguments are passed in arrays + // to fill in + setupParams: function(paramSize, params) { + var options = [], contexts = [], param, inverse, program; + + options.push("hash:" + this.popStack()); + + inverse = this.popStack(); + program = this.popStack(); + + // Avoid setting fn and inverse if neither are set. This allows + // helpers to do a check for `if (options.fn)` + if (program || inverse) { + if (!program) { + this.context.aliases.self = "this"; + program = "self.noop"; + } + + if (!inverse) { + this.context.aliases.self = "this"; + inverse = "self.noop"; + } - if (!inverse) { - this.context.aliases.self = "this"; - inverse = "self.noop"; + options.push("inverse:" + inverse); + options.push("fn:" + program); } - options.push("inverse:" + inverse); - options.push("fn:" + program); - } + for(var i=0; i<paramSize; i++) { + param = this.popStack(); + params.push(param); - for(var i=0; i<paramSize; i++) { - param = this.popStack(); - params.push(param); + if(this.options.stringParams) { + contexts.push(this.popStack()); + } + } - if(this.options.stringParams) { - contexts.push(this.popStack()); + if (this.options.stringParams) { + options.push("contexts:[" + contexts.join(",") + "]"); } - } - if (this.options.stringParams) { - options.push("contexts:[" + contexts.join(",") + "]"); + if(this.options.data) { + options.push("data:data"); + } + + params.push("{" + options.join(",") + "}"); + return params.join(", "); } + }; + + var reservedWords = ( + "break else new var" + + " case finally return void" + + " catch for switch while" + + " continue function this with" + + " default if throw" + + " delete in try" + + " do instanceof typeof" + + " abstract enum int short" + + " boolean export interface static" + + " byte extends long super" + + " char final native synchronized" + + " class float package throws" + + " const goto private transient" + + " debugger implements protected volatile" + + " double import public let yield" + ).split(" "); + + var compilerWords = JavaScriptCompiler.RESERVED_WORDS = {}; + + for(var i=0, l=reservedWords.length; i<l; i++) { + compilerWords[reservedWords[i]] = true; + } - if(this.options.data) { - options.push("data:data"); + JavaScriptCompiler.isValidJavaScriptVariableName = function(name) { + if(!JavaScriptCompiler.RESERVED_WORDS[name] && /^[a-zA-Z_$][0-9a-zA-Z_$]+$/.test(name)) { + return true; } + return false; + }; - params.push("{" + options.join(",") + "}"); - return params.join(", "); - } + })(Handlebars.Compiler, Handlebars.JavaScriptCompiler); + + Handlebars.precompile = function(string, options) { + options = options || {}; + + var ast = Handlebars.parse(string); + var environment = new Handlebars.Compiler().compile(ast, options); + return new Handlebars.JavaScriptCompiler().compile(environment, options); }; - var reservedWords = ( - "break else new var" + - " case finally return void" + - " catch for switch while" + - " continue function this with" + - " default if throw" + - " delete in try" + - " do instanceof typeof" + - " abstract enum int short" + - " boolean export interface static" + - " byte extends long super" + - " char final native synchronized" + - " class float package throws" + - " const goto private transient" + - " debugger implements protected volatile" + - " double import public let yield" - ).split(" "); - - var compilerWords = JavaScriptCompiler.RESERVED_WORDS = {}; - - for(var i=0, l=reservedWords.length; i<l; i++) { - compilerWords[reservedWords[i]] = true; - } - - JavaScriptCompiler.isValidJavaScriptVariableName = function(name) { - if(!JavaScriptCompiler.RESERVED_WORDS[name] && /^[a-zA-Z_$][0-9a-zA-Z_$]+$/.test(name)) { - return true; + Handlebars.compile = function(string, options) { + options = options || {}; + + var compiled; + function compile() { + var ast = Handlebars.parse(string); + var environment = new Handlebars.Compiler().compile(ast, options); + var templateSpec = new Handlebars.JavaScriptCompiler().compile(environment, options, undefined, true); + return Handlebars.template(templateSpec); } - return false; - }; -})(Handlebars.Compiler, Handlebars.JavaScriptCompiler); + // Template is only compiled on first use and cached after that point. + return function(context, options) { + if (!compiled) { + compiled = compile(); + } + return compiled.call(this, context, options); + }; + }; -Handlebars.precompile = function(string, options) { - options = options || {}; - var ast = Handlebars.parse(string); - var environment = new Handlebars.Compiler().compile(ast, options); - return new Handlebars.JavaScriptCompiler().compile(environment, options); -}; + // END(BROWSER) -Handlebars.compile = function(string, options) { - options = options || {}; + return Handlebars; - var compiled; - function compile() { - var ast = Handlebars.parse(string); - var environment = new Handlebars.Compiler().compile(ast, options); - var templateSpec = new Handlebars.JavaScriptCompiler().compile(environment, options, undefined, true); - return Handlebars.template(templateSpec); - } - - // Template is only compiled on first use and cached after that point. - return function(context, options) { - if (!compiled) { - compiled = compile(); - } - return compiled.call(this, context, options); - }; }; -// END(BROWSER) |