PerformanceTests/JetStream2/WSL/LiteralTypeChecker.js

/*
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"use strict";

// This phase is for asserting that the compiler didn't violate its internal constraints, so it
// throws Error not WTypeError.
//
// The reason this phase exists is that in a compiler, we need literals like null and 0 to know their
// exact type so that they know how many bytes they occupy and how to set their default value. For
// example, null for ^ will probably take one pointer-sized word while null for [] will take two words
// (one for base and one for length). The type checker is equipped to infer this, and this phase's job
// is just to verify that the type checker succeeded.
class LiteralTypeChecker extends Visitor {
    visitNullType(node)
    {
        if (!node.type)
            throw new Error("Null at " + node.origin.originString + " does not have type");
    }
    
    visitGenericLiteralType(node)
    {
        if (!node.type)
            throw new Error(node + " at " + node.origin.originString + " does not have type");
    }
}