File: //usr/local/lib/node_modules/less/lib/less/tree/mixin-definition.js.map
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Selector from './selector';\nimport Element from './element';\nimport Ruleset from './ruleset';\nimport Declaration from './declaration';\nimport DetachedRuleset from './detached-ruleset';\nimport Expression from './expression';\nimport contexts from '../contexts';\nimport * as utils from '../utils';\n\nconst Definition = function(name, params, rules, condition, variadic, frames, visibilityInfo) {\n this.name = name || 'anonymous mixin';\n this.selectors = [new Selector([new Element(null, name, false, this._index, this._fileInfo)])];\n this.params = params;\n this.condition = condition;\n this.variadic = variadic;\n this.arity = params.length;\n this.rules = rules;\n this._lookups = {};\n const optionalParameters = [];\n this.required = params.reduce(function (count, p) {\n if (!p.name || (p.name && !p.value)) {\n return count + 1;\n }\n else {\n optionalParameters.push(p.name);\n return count;\n }\n }, 0);\n this.optionalParameters = optionalParameters;\n this.frames = frames;\n this.copyVisibilityInfo(visibilityInfo);\n this.allowRoot = true;\n}\n\nDefinition.prototype = Object.assign(new Ruleset(), {\n type: 'MixinDefinition',\n evalFirst: true,\n\n accept(visitor) {\n if (this.params && this.params.length) {\n this.params = visitor.visitArray(this.params);\n }\n this.rules = visitor.visitArray(this.rules);\n if (this.condition) {\n this.condition = visitor.visit(this.condition);\n }\n },\n\n evalParams(context, mixinEnv, args, evaldArguments) {\n /* jshint boss:true */\n const frame = new Ruleset(null, null);\n\n let varargs;\n let arg;\n const params = utils.copyArray(this.params);\n let i;\n let j;\n let val;\n let name;\n let isNamedFound;\n let argIndex;\n let argsLength = 0;\n\n if (mixinEnv.frames && mixinEnv.frames[0] && mixinEnv.frames[0].functionRegistry) {\n frame.functionRegistry = mixinEnv.frames[0].functionRegistry.inherit();\n }\n mixinEnv = new contexts.Eval(mixinEnv, [frame].concat(mixinEnv.frames));\n\n if (args) {\n args = utils.copyArray(args);\n argsLength = args.length;\n\n for (i = 0; i < argsLength; i++) {\n arg = args[i];\n if (name = (arg && arg.name)) {\n isNamedFound = false;\n for (j = 0; j < params.length; j++) {\n if (!evaldArguments[j] && name === params[j].name) {\n evaldArguments[j] = arg.value.eval(context);\n frame.prependRule(new Declaration(name, arg.value.eval(context)));\n isNamedFound = true;\n break;\n }\n }\n if (isNamedFound) {\n args.splice(i, 1);\n i--;\n continue;\n } else {\n throw { type: 'Runtime', message: `Named argument for ${this.name} ${args[i].name} not found` };\n }\n }\n }\n }\n argIndex = 0;\n for (i = 0; i < params.length; i++) {\n if (evaldArguments[i]) { continue; }\n\n arg = args && args[argIndex];\n\n if (name = params[i].name) {\n if (params[i].variadic) {\n varargs = [];\n for (j = argIndex; j < argsLength; j++) {\n varargs.push(args[j].value.eval(context));\n }\n frame.prependRule(new Declaration(name, new Expression(varargs).eval(context)));\n } else {\n val = arg && arg.value;\n if (val) {\n // This was a mixin call, pass in a detached ruleset of it's eval'd rules\n if (Array.isArray(val)) {\n val = new DetachedRuleset(new Ruleset('', val));\n }\n else {\n val = val.eval(context);\n }\n } else if (params[i].value) {\n val = params[i].value.eval(mixinEnv);\n frame.resetCache();\n } else {\n throw { type: 'Runtime', message: `wrong number of arguments for ${this.name} (${argsLength} for ${this.arity})` };\n }\n\n frame.prependRule(new Declaration(name, val));\n evaldArguments[i] = val;\n }\n }\n\n if (params[i].variadic && args) {\n for (j = argIndex; j < argsLength; j++) {\n evaldArguments[j] = args[j].value.eval(context);\n }\n }\n argIndex++;\n }\n\n return frame;\n },\n\n makeImportant() {\n const rules = !this.rules ? this.rules : this.rules.map(function (r) {\n if (r.makeImportant) {\n return r.makeImportant(true);\n } else {\n return r;\n }\n });\n const result = new Definition(this.name, this.params, rules, this.condition, this.variadic, this.frames);\n return result;\n },\n\n eval(context) {\n return new Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || utils.copyArray(context.frames));\n },\n\n evalCall(context, args, important) {\n const _arguments = [];\n const mixinFrames = this.frames ? this.frames.concat(context.frames) : context.frames;\n const frame = this.evalParams(context, new contexts.Eval(context, mixinFrames), args, _arguments);\n let rules;\n let ruleset;\n\n frame.prependRule(new Declaration('@arguments', new Expression(_arguments).eval(context)));\n\n rules = utils.copyArray(this.rules);\n\n ruleset = new Ruleset(null, rules);\n ruleset.originalRuleset = this;\n ruleset = ruleset.eval(new contexts.Eval(context, [this, frame].concat(mixinFrames)));\n if (important) {\n ruleset = ruleset.makeImportant();\n }\n return ruleset;\n },\n\n matchCondition(args, context) {\n if (this.condition && !this.condition.eval(\n new contexts.Eval(context,\n [this.evalParams(context, /* the parameter variables */\n new contexts.Eval(context, this.frames ? this.frames.concat(context.frames) : context.frames), args, [])]\n .concat(this.frames || []) // the parent namespace/mixin frames\n .concat(context.frames)))) { // the current environment frames\n return false;\n }\n return true;\n },\n\n matchArgs(args, context) {\n const allArgsCnt = (args && args.length) || 0;\n let len;\n const optionalParameters = this.optionalParameters;\n const requiredArgsCnt = !args ? 0 : args.reduce(function (count, p) {\n if (optionalParameters.indexOf(p.name) < 0) {\n return count + 1;\n } else {\n return count;\n }\n }, 0);\n\n if (!this.variadic) {\n if (requiredArgsCnt < this.required) {\n return false;\n }\n if (allArgsCnt > this.params.length) {\n return false;\n }\n } else {\n if (requiredArgsCnt < (this.required - 1)) {\n return false;\n }\n }\n\n // check patterns\n len = Math.min(requiredArgsCnt, this.arity);\n\n for (let i = 0; i < len; i++) {\n if (!this.params[i].name && !this.params[i].variadic) {\n if (args[i].value.eval(context).toCSS() != this.params[i].value.eval(context).toCSS()) {\n return false;\n }\n }\n }\n return true;\n }\n});\n\nexport default Definition;\n"]}