29 lines
824 B
JavaScript
29 lines
824 B
JavaScript
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const parser = require("@babel/parser");
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const generate = require("@babel/generator").default
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const traverse = require("@babel/traverse").default
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const types = require("@babel/types")
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const code = `
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const a = !![]+!![]+!![];
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const b = Math.floor(12.34 * 2.12)
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const c = 10 >> 3 << 1
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const d = String(21.3 + 14 * 1.32)
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const e = parseInt("1.893" + "45.9088")
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const f = parseFloat("23.2334" + "21.89112")
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const g = 20 < 18 ? '未成年' : '成年'
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`
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const ast = parser.parse(code)
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const visitor = {
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"BinaryExpression|CallExpression|ConditionalExpression"(path) {
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const {confident, value} = path.evaluate()
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console.log(value)
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if (confident){
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path.replaceInline(types.valueToNode(value))
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}
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}
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}
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traverse(ast, visitor)
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const result = generate(ast)
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// console.log(result.code)
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