| /* |
| MIT License http://www.opensource.org/licenses/mit-license.php |
| Author Tobias Koppers @sokra |
| */ |
| module.exports = expr => { |
| // <FunctionExpression> |
| if ( |
| expr.type === "FunctionExpression" || |
| expr.type === "ArrowFunctionExpression" |
| ) { |
| return { |
| fn: expr, |
| expressions: [], |
| needThis: false |
| }; |
| } |
| |
| // <FunctionExpression>.bind(<Expression>) |
| if ( |
| expr.type === "CallExpression" && |
| expr.callee.type === "MemberExpression" && |
| expr.callee.object.type === "FunctionExpression" && |
| expr.callee.property.type === "Identifier" && |
| expr.callee.property.name === "bind" && |
| expr.arguments.length === 1 |
| ) { |
| return { |
| fn: expr.callee.object, |
| expressions: [expr.arguments[0]], |
| needThis: undefined |
| }; |
| } |
| // (function(_this) {return <FunctionExpression>})(this) (Coffeescript) |
| if ( |
| expr.type === "CallExpression" && |
| expr.callee.type === "FunctionExpression" && |
| expr.callee.body.type === "BlockStatement" && |
| expr.arguments.length === 1 && |
| expr.arguments[0].type === "ThisExpression" && |
| expr.callee.body.body && |
| expr.callee.body.body.length === 1 && |
| expr.callee.body.body[0].type === "ReturnStatement" && |
| expr.callee.body.body[0].argument && |
| expr.callee.body.body[0].argument.type === "FunctionExpression" |
| ) { |
| return { |
| fn: expr.callee.body.body[0].argument, |
| expressions: [], |
| needThis: true |
| }; |
| } |
| }; |