2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const RequireContextDependency = require("./RequireContextDependency");
module.exports = class RequireContextDependencyParserPlugin {
apply(parser) {
parser.plugin("call require.context", expr => {
let regExp = /^\.\/.*$/;
let recursive = true;
let asyncMode;
switch(expr.arguments.length) {
case 4:
{
const asyncModeExpr = parser.evaluateExpression(expr.arguments[3]);
if(!asyncModeExpr.isString()) return;
asyncMode = asyncModeExpr.string;
}
// falls through
case 3:
{
const regExpExpr = parser.evaluateExpression(expr.arguments[2]);
if(!regExpExpr.isRegExp()) return;
regExp = regExpExpr.regExp;
}
// falls through
case 2:
{
const recursiveExpr = parser.evaluateExpression(expr.arguments[1]);
if(!recursiveExpr.isBoolean()) return;
recursive = recursiveExpr.bool;
}
// falls through
case 1:
{
const requestExpr = parser.evaluateExpression(expr.arguments[0]);
if(!requestExpr.isString()) return;
const dep = new RequireContextDependency(requestExpr.string, recursive, regExp, asyncMode, expr.range);
dep.loc = expr.loc;
dep.optional = parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
}
}
});
}
};
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