Files
handlebars.js/lib/handlebars/runtime.js
T
2013-05-31 13:12:06 -04:00

107 lines
3.5 KiB
JavaScript

exports.attach = function(Handlebars) {
// BEGIN(BROWSER)
Handlebars.VM = {
template: function(templateSpec) {
// Just add water
var container = {
escapeExpression: Handlebars.Utils.escapeExpression,
invokePartial: Handlebars.VM.invokePartial,
programs: [],
program: function(i, fn, data) {
var programWrapper = this.programs[i];
if(data) {
programWrapper = Handlebars.VM.program(i, fn, data);
} else if (!programWrapper) {
programWrapper = this.programs[i] = Handlebars.VM.program(i, fn);
}
return programWrapper;
},
merge: function(param, common) {
var ret = param || common;
if (param && common) {
ret = {};
Handlebars.Utils.extend(ret, common);
Handlebars.Utils.extend(ret, param);
}
return ret;
},
programWithDepth: Handlebars.VM.programWithDepth,
noop: Handlebars.VM.noop,
compilerInfo: null
};
return function(context, options) {
options = options || {};
var result = templateSpec.call(container, Handlebars, context, options.helpers, options.partials, options.data);
var compilerInfo = container.compilerInfo || [],
compilerRevision = compilerInfo[0] || 1,
currentRevision = Handlebars.COMPILER_REVISION;
if (compilerRevision !== currentRevision) {
if (compilerRevision < currentRevision) {
var runtimeVersions = Handlebars.REVISION_CHANGES[currentRevision],
compilerVersions = Handlebars.REVISION_CHANGES[compilerRevision];
throw "Template was precompiled with an older version of Handlebars than the current runtime. "+
"Please update your precompiler to a newer version ("+runtimeVersions+") or downgrade your runtime to an older version ("+compilerVersions+").";
} else {
// Use the embedded version info since the runtime doesn't know about this revision yet
throw "Template was precompiled with a newer version of Handlebars than the current runtime. "+
"Please update your runtime to a newer version ("+compilerInfo[1]+").";
}
}
return result;
};
},
programWithDepth: function(i, fn, data /*, $depth */) {
var args = Array.prototype.slice.call(arguments, 3);
var program = function(context, options) {
options = options || {};
return fn.apply(this, [context, options.data || data].concat(args));
};
program.program = i;
program.depth = args.length;
return program;
},
program: function(i, fn, data) {
var program = function(context, options) {
options = options || {};
return fn(context, options.data || data);
};
program.program = i;
program.depth = 0;
return program;
},
noop: function() { return ""; },
invokePartial: function(partial, name, context, helpers, partials, data) {
var options = { helpers: helpers, partials: partials, data: data };
if(partial === undefined) {
throw new Handlebars.Exception("The partial " + name + " could not be found");
} else if(partial instanceof Function) {
return partial(context, options);
} else if (!Handlebars.compile) {
throw new Handlebars.Exception("The partial " + name + " could not be compiled when running in runtime-only mode");
} else {
partials[name] = Handlebars.compile(partial, {data: data !== undefined});
return partials[name](context, options);
}
}
};
Handlebars.template = Handlebars.VM.template;
// END(BROWSER)
return Handlebars;
};