49 lines
1.4 KiB
JavaScript
Executable File
49 lines
1.4 KiB
JavaScript
Executable File
#!/usr/bin/env node
|
|
|
|
var fs = require("fs")
|
|
|
|
var acornSrc = fs.readFileSync(require.resolve("../dist/acorn"), "utf8")
|
|
var acorn = require("../dist/acorn"), walk = require("../dist/walk")
|
|
|
|
var ast = acorn.parse(acornSrc)
|
|
var touchups = [], uses = []
|
|
|
|
var makePred
|
|
|
|
walk.simple(ast, {
|
|
FunctionDeclaration: function(node) {
|
|
if (node.id.name == "makePredicate") {
|
|
makePred = node
|
|
touchups.push({text: "// Removed to create an eval-free library", from: node.start, to: node.end})
|
|
}
|
|
},
|
|
ObjectExpression: function(node) {
|
|
node.properties.forEach(function(prop) {
|
|
if (prop.value.type == "CallExpression" &&
|
|
prop.value.callee.name == "makePredicate")
|
|
uses.push(prop.value)
|
|
})
|
|
}
|
|
})
|
|
|
|
var results = []
|
|
var dryRun = acornSrc.slice(0, makePred.end) + "; makePredicate = (function(mp) {" +
|
|
"return function(words) { var r = mp(words); predicates.push(r); return r }})(makePredicate);" +
|
|
acornSrc.slice(makePred.end)
|
|
;(new Function("predicates", dryRun))(results)
|
|
|
|
uses.forEach(function (node, i) {
|
|
touchups.push({text: results[i].toString(), from: node.start, to: node.end})
|
|
})
|
|
|
|
var result = "", pos = 0
|
|
touchups.sort(function(a, b) { return a.from - b.from })
|
|
touchups.forEach(function(touchup) {
|
|
result += acornSrc.slice(pos, touchup.from)
|
|
result += touchup.text
|
|
pos = touchup.to
|
|
})
|
|
result += acornSrc.slice(pos)
|
|
|
|
process.stdout.write(result)
|