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59885c474f
This hit an assertion I was trying to add to make sure we don't try to recursively type-check when type-checking a closure. Currently we can end up type-checking the initializer for `x` while generating constraints for the closure due to the fact that we eagerly compute the interface type for the backing lazy storage var. We ought to make that computation lazy, but in the mean time, add this test case.
54 lines
2.0 KiB
Swift
54 lines
2.0 KiB
Swift
// RUN: %target-swift-emit-silgen -primary-file %s | %FileCheck %s
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// RUN: %target-swift-frontend -emit-ir -primary-file %s
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// CHECK-LABEL: sil hidden [ossa] @$s11lazy_locals6simpleSiyF : $@convention(thin) () -> Int {
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func simple() -> Int {
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lazy var x = 123
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return x
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}
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// CHECK-LABEL: sil private [lazy_getter] [noinline] [ossa] @$s11lazy_locals6simpleSiyF1xL_Sivg : $@convention(thin) (@guaranteed { var Optional<Int> }) -> Int {
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// CHECK-LABEL: sil hidden [ossa] @$s11lazy_locals8captures1xS2i_tF : $@convention(thin) (Int) -> Int {
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func captures(x: Int) -> Int {
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let y = x * x
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lazy var z = x + y
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let fn = { z }
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return fn()
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}
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// CHECK-LABEL: sil private [lazy_getter] [noinline] [ossa] @$s11lazy_locals8captures1xS2i_tF1zL_Sivg : $@convention(thin) (@guaranteed { var Optional<Int> }, Int, Int) -> Int {
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// CHECK-LABEL: sil private [ossa] @$s11lazy_locals8captures1xS2i_tFSiycfU_ : $@convention(thin) (@guaranteed { var Optional<Int> }, Int, Int) -> Int {
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// CHECK-LABEL: sil hidden [ossa] @$s11lazy_locals6assignSiyF : $@convention(thin) () -> Int {
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func assign() -> Int {
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lazy var z = 123
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z = 321
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return z
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}
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// CHECK-LABEL: sil private [lazy_getter] [noinline] [ossa] @$s11lazy_locals6assignSiyF1zL_Sivg : $@convention(thin) (@guaranteed { var Optional<Int> }) -> Int {
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// CHECK-LABEL: sil private [ossa] @$s11lazy_locals6assignSiyF1zL_Sivs : $@convention(thin) (Int, @guaranteed { var Optional<Int> }) -> () {
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// CHECK-LABEL: sil hidden [ossa] @$s11lazy_locals7generic1xxx_tlF : $@convention(thin) <T> (@in_guaranteed T) -> @out T {
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func generic<T>(x: T) -> T {
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lazy var z = x
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return z
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}
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// CHECK-LABEL: sil private [lazy_getter] [noinline] [ossa] @$s11lazy_locals7generic1xxx_tlF1zL_xvg : $@convention(thin) <T> (@guaranteed <τ_0_0> { var Optional<τ_0_0> } <T>, @in_guaranteed T) -> @out T {
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func lazyLocalWithNestedClosure() {
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lazy var x = {
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return 3
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}()
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}
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func lazyLocalInClosure() {
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// Make sure we can type-check.
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_ = {
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lazy var x = 0
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return x
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}
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}
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