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Fix non-iteratrable input of yieldEach #455

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Fix non-iteratrable input of yieldEach #455

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9 changes: 9 additions & 0 deletions Sources/Fuzzilli/Base/ProgramBuilder.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -2711,4 +2711,13 @@ public class ProgramBuilder {
break
}
}

public func buildIteratorVariable(_ b: ProgramBuilder, _ it: Variable) -> Variable{
if(b.type(of: it).Is(.iterable)){
return it
}
let initialValues = (0..<Int.random(in: 1...5)).map({ _ in b.randomVariable() })
return b.createArray(with: initialValues)
}

}
10 changes: 5 additions & 5 deletions Sources/Fuzzilli/CodeGen/CodeGenerators.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -769,13 +769,13 @@ public let CodeGenerators: [CodeGenerator] = [
// These are "typically" used as arguments, so we don't directly generate a call operation here.
},

RecursiveCodeGenerator("GeneratorFunctionGenerator") { b in
RecursiveCodeGenerator("GeneratorFunctionGenerator", inputs: .preferred(.iterable)) { b, it in
let f = b.buildGeneratorFunction(with: b.randomParameters(), isStrict: probability(0.1)) { _ in
b.buildRecursive()
if probability(0.5) {
b.yield(b.randomVariable())
} else {
b.yieldEach(b.randomVariable())
b.yieldEach(b.buildIteratorVariable(b, it))
}
b.doReturn(b.randomVariable())
}
Expand All @@ -800,14 +800,14 @@ public let CodeGenerators: [CodeGenerator] = [
// These are "typically" used as arguments, so we don't directly generate a call operation here.
},

RecursiveCodeGenerator("AsyncGeneratorFunctionGenerator") { b in
RecursiveCodeGenerator("AsyncGeneratorFunctionGenerator", inputs: .preferred(.iterable)) { b, it in
let f = b.buildAsyncGeneratorFunction(with: b.randomParameters(), isStrict: probability(0.1)) { _ in
b.buildRecursive()
b.await(b.randomVariable())
if probability(0.5) {
b.yield(b.randomVariable())
} else {
b.yieldEach(b.randomVariable())
b.yieldEach(b.buildIteratorVariable(b, it))
}
b.doReturn(b.randomVariable())
}
Expand Down Expand Up @@ -1085,7 +1085,7 @@ public let CodeGenerators: [CodeGenerator] = [
}
} else {
// TODO only do this when the value is iterable?
b.yieldEach(val)
b.yieldEach(b.buildIteratorVariable(b, val))
}
},

Expand Down