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