@aurelia/expression-parser/dist/types/ast.kind.d.ts

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declare const enum ExpressionKind {
    CallsFunction = 128,// Calls a function (CallFunction, CallScope, CallMember, TaggedTemplate) -> needs a valid function object returning from its lefthandside's evaluate()
    HasAncestor = 256,// Has an "ancestor" property, meaning the expression could climb up the context (only AccessThis, AccessScope and CallScope)
    IsPrimary = 512,// Is a primary expression according to ES parsing rules
    IsLeftHandSide = 1024,// Is a left-hand side expression according to ES parsing rules, includes IsPrimary
    HasBind = 2048,// Has a bind() method (currently only BindingBehavior)
    HasUnbind = 4096,// Has an unbind() method (currentl only BindingBehavior and ValueConverter)
    IsAssignable = 8192,// Is an assignable expression according to ES parsing rules (only AccessScope, AccessMember, AccessKeyed ans Assign)
    IsLiteral = 16384,// Is literal expression (Primitive, Array, Object or Template)
    IsResource = 32768,// Is an Aurelia resource (ValueConverter or BindingBehavior)
    IsForDeclaration = 65536,// Is a For declaration (for..of, for..in -> currently only ForOfStatement)
    Type = 31,// Type mask to uniquely identify each AST class (concrete types start below)
    AccessThis = 1793,//               HasAncestor
    AccessScope = 10082,// IsAssignable  HasAncestor
    ArrayLiteral = 17955,//
    ObjectLiteral = 17956,//
    PrimitiveLiteral = 17925,//
    Template = 17958,//
    Unary = 39,//
    CallScope = 1448,//               HasAncestor  CallsFunction
    CallMember = 1161,//                            CallsFunction
    CallFunction = 1162,//                            CallsFunction
    AccessMember = 9323,// IsAssignable
    AccessKeyed = 9324,// IsAssignable
    TaggedTemplate = 1197,//                            CallsFunction
    Binary = 46,//
    Conditional = 63,//
    Assign = 8208,// IsAssignable
    ArrowFunction = 17,//
    ValueConverter = 36914,//
    BindingBehavior = 38963,//
    HtmlLiteral = 52,//
    ArrayBindingPattern = 65557,//
    ObjectBindingPattern = 65558,//
    BindingIdentifier = 65559,//
    ForOfStatement = 6200,//
    Interpolation = 25,//
    ArrayDestructuring = 90138,// IsAssignable
    ObjectDestructuring = 106523,// IsAssignable
    DestructuringAssignmentLeaf = 139292
}
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