/*

MIT License http://www.opensource.org/licenses/mit-license.php

Author Tobias Koppers @sokra

*/

var NullDependency = require("./NullDependency");

function RequireEnsureDependency(block) {

NullDependency.call(this);

this.Class = RequireEnsureDependency;

this.block = block;

}

module.exports = RequireEnsureDependency;

RequireEnsureDependency.prototype = Object.create(NullDependency.prototype);

RequireEnsureDependency.prototype.type = "require.ensure";

RequireEnsureDependency.Template = function RequireEnsureDependencyTemplate() {};

RequireEnsureDependency.Template.prototype.apply = function(dep, source, outputOptions, requestShortener) {

var depBlock = dep.block;

if(depBlock.chunkNameRange) {

var comment = "";

if(outputOptions.pathinfo) comment = "/*! " + requestShortener.shorten(depBlock.chunkName) + " */ ";

source.replace(depBlock.chunkNameRange[0], depBlock.chunkNameRange[1]-1, comment + "0");

}

if(depBlock.chunk && !depBlock.chunk.entry && typeof depBlock.chunk.id === "number") {

source.replace(depBlock.expr.callee.range[0], depBlock.expr.callee.range[1]-1, "require.e/*nsure*/");

source.replace(depBlock.expr.arguments[0].range[0], depBlock.expr.arguments[0].range[1]-1, (depBlock.chunk.id) + "" + asComment(depBlock.chunkReason));

} else {

source.replace(depBlock.expr.range[0], depBlock.expr.arguments[1].range[0]-1, "!/*require.ensure*/(");

source.replace(depBlock.expr.arguments[1].range[1], depBlock.expr.range[1]-1, "(require))");

}

}

function asComment(str) {

if(!str) return "";

return "/* " + str + " */";

}