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iby/main.swift

Created June 17, 2019 14:27
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Revisions

  1. @ianbytchek ianbytchek created this gist Jun 17, 2019.
    16 changes: 16 additions & 0 deletions main.swift
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,16 @@
    import Slang

    let source: String = "import Foundation; class Foo { let bar = 1 }"
    let file: File = File(source)
    let disassembly: Disassembly = try! Disassembly(file)
    var edits: [Edit] = []

    // Change "Foundation" identifier to "AppKit".
    edits.append(Edit(disassembly.query.syntax.first(of: .identifier).select(where: { $0.contents == "Foundation" }).one!, "AppKit"))
    // Change "class" keyword to "struct".
    edits.append(Edit(disassembly.query.structure.children(of: .decl(.class)).syntax.first(of: .keyword).one!, "struct"))
    // Change "bar" property value from "1" to "BAR".
    edits.append(Edit(disassembly.query.structure.children(of: .decl(.class)).syntax.last(of: .number).one!, "\"BAR\""))

    print(file.contents.applying(edits))
    // import AppKit; struct Foo { let bar = "BAR" }