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authorTommy Messbauer <tommy@vast.com>2012-08-29 12:48:22 -0500
committerTommy Messbauer <tommy@vast.com>2012-08-29 12:48:22 -0500
commit7c4813b417eaf4b9aab597dcd618857b8419f301 (patch)
treee20b27e87e710f0b988f5d8cc631859677449494 /lib/handlebars/compiler/compiler.js
parent89f5ab8aaf8c6017d4a78b2bce719be0d99f82bd (diff)
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Commiting initial factory code
Diffstat (limited to 'lib/handlebars/compiler/compiler.js')
-rw-r--r--lib/handlebars/compiler/compiler.js1829
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)