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Swift: Add a test of enum decls.
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‎swift/ql/test/library-tests/elements/decl/enumdecl/enumdecl.expected

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| enumdecl.swift:2:1:6:1 | MyColours | (EnumDecl), .getMember(0) = case ..., .getMember(1) = red, .getMember(10) = hashValue, .getMember(2) = case ..., .getMember(3) = green, .getMember(4) = yellow, .getMember(5) = case ..., .getMember(6) = blue, .getMember(7) = __derived_enum_equals(_:_:), .getMember(8) = var ... = ..., .getMember(9) = hash(into:), .getType = MyColours |
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| enumdecl.swift:3:2:3:7 | case ... | (EnumCaseDecl), .getDeclaringDecl = MyColours, .getElement(0) = red |
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| enumdecl.swift:3:7:3:7 | red | (EnumElementDecl), .getDeclaringDecl = MyColours |
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| enumdecl.swift:4:2:4:14 | case ... | (EnumCaseDecl), .getDeclaringDecl = MyColours, .getElement(0) = green, .getElement(1) = yellow |
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| enumdecl.swift:4:7:4:7 | green | (EnumElementDecl), .getDeclaringDecl = MyColours |
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| enumdecl.swift:4:14:4:14 | yellow | (EnumElementDecl), .getDeclaringDecl = MyColours |
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| enumdecl.swift:5:2:5:7 | case ... | (EnumCaseDecl), .getDeclaringDecl = MyColours, .getElement(0) = blue |
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| enumdecl.swift:5:7:5:7 | blue | (EnumElementDecl), .getDeclaringDecl = MyColours |
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| enumdecl.swift:8:1:11:1 | MyContainer | (EnumDecl), .getMember(0) = case ..., .getMember(1) = str, .getMember(2) = case ..., .getMember(3) = pair, .getType = MyContainer |
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| enumdecl.swift:9:2:9:17 | case ... | (EnumCaseDecl), .getDeclaringDecl = MyContainer, .getElement(0) = str |
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| enumdecl.swift:9:7:9:17 | str | (EnumElementDecl), .getDeclaringDecl = MyContainer, .getParam(0) = _ |
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| enumdecl.swift:10:2:10:26 | case ... | (EnumCaseDecl), .getDeclaringDecl = MyContainer, .getElement(0) = pair |
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| enumdecl.swift:10:7:10:26 | pair | (EnumElementDecl), .getDeclaringDecl = MyContainer, .getParam(0) = x, .getParam(1) = y |
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| enumdecl.swift:13:1:16:1 | MyNumbers | (EnumDecl), .getMember(0) = case ..., .getMember(1) = one, .getMember(2) = two, .getMember(3) = case ..., .getMember(4) = three, .getMember(5) = four, .getMember(6) = MyNumbers.init(rawValue:), .getMember(7) = var ... = ..., .getMember(8) = RawValue, .getMember(9) = rawValue, .getType = MyNumbers |
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| enumdecl.swift:14:2:14:16 | case ... | (EnumCaseDecl), .getDeclaringDecl = MyNumbers, .getElement(0) = one, .getElement(1) = two |
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| enumdecl.swift:14:7:14:13 | one | (EnumElementDecl), .getDeclaringDecl = MyNumbers |
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| enumdecl.swift:14:16:14:16 | two | (EnumElementDecl), .getDeclaringDecl = MyNumbers |
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| enumdecl.swift:15:2:15:14 | case ... | (EnumCaseDecl), .getDeclaringDecl = MyNumbers, .getElement(0) = three, .getElement(1) = four |
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| enumdecl.swift:15:7:15:7 | three | (EnumElementDecl), .getDeclaringDecl = MyNumbers |
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| enumdecl.swift:15:14:15:14 | four | (EnumElementDecl), .getDeclaringDecl = MyNumbers |
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| enumdecl.swift:18:1:20:1 | MyGreek | (EnumDecl), .getMember(0) = case ..., .getMember(1) = alpha, .getMember(2) = beta, .getMember(3) = gamma, .getMember(4) = delta, .getMember(5) = epsilon, .getMember(6) = __derived_enum_equals(_:_:), .getMember(7) = var ... = ..., .getMember(8) = hash(into:), .getMember(9) = hashValue, .getType = MyGreek |
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| enumdecl.swift:19:2:19:34 | case ... | (EnumCaseDecl), .getDeclaringDecl = MyGreek, .getElement(0) = alpha, .getElement(1) = beta, .getElement(2) = gamma, .getElement(3) = delta, .getElement(4) = epsilon |
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| enumdecl.swift:19:7:19:7 | alpha | (EnumElementDecl), .getDeclaringDecl = MyGreek |
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| enumdecl.swift:19:14:19:14 | beta | (EnumElementDecl), .getDeclaringDecl = MyGreek |
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| enumdecl.swift:19:20:19:20 | gamma | (EnumElementDecl), .getDeclaringDecl = MyGreek |
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| enumdecl.swift:19:27:19:27 | delta | (EnumElementDecl), .getDeclaringDecl = MyGreek |
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| enumdecl.swift:19:34:19:34 | epsilon | (EnumElementDecl), .getDeclaringDecl = MyGreek |

‎swift/ql/test/library-tests/elements/decl/enumdecl/enumdecl.ql

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import swift
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string describe(Decl d) {
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(d instanceof EnumDecl and result = "(EnumDecl)")
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or
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(d instanceof EnumCaseDecl and result = "(EnumCaseDecl)")
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or
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(d instanceof EnumElementDecl and result = "(EnumElementDecl)")
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or
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result = ".getType = " + d.(EnumDecl).getType().toString()
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or
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result = ".getDeclaringDecl = " + d.getDeclaringDecl().toString()
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or
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exists(int i |
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result = ".getMember(" + i.toString() + ") = " + d.getMember(i).toString()
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or
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result = ".getElement(" + i.toString() + ") = " + d.(EnumCaseDecl).getElement(i).toString()
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or
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result = ".getParam(" + i.toString() + ") = " + d.(EnumElementDecl).getParam(i).toString()
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)
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}
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from Decl d
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where d.getLocation().getFile().getName() != ""
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select d, strictconcat(describe(d), ", ")

‎swift/ql/test/library-tests/elements/decl/enumdecl/enumdecl.swift

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enum MyColours {
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case red
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case green, yellow
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case blue
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}
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enum MyContainer {
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case str(String)
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case pair(x: Int, y: Int)
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}
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enum MyNumbers: Int {
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case one = 1, two
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case three, four
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}
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enum MyGreek {
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case alpha, beta, gamma, delta, epsilon
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}

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