Effects: add cfg-tests on inlined lambdas
========== Introduction of Effect System: 15/18
This commit is contained in:
Dmitry Savvinov
@@ -0,0 +1,118 @@
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== myRun ==
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inline fun <T> myRun(block: () -> T): T {
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contract {
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callsInPlace(block, InvocationKind.EXACTLY_ONCE)
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}
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return block()
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}
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---------------------
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<v0>: {<: () -> T} NEW: magic[FAKE_INITIALIZER](block: () -> T) -> <v0>
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{ callsInPlace(block, InvocationKind.EXACTLY_ONCE) } <v1>: {<: ContractBuilder.() -> Unit} NEW: r({ callsInPlace(block, InvocationKind.EXACTLY_ONCE) }) -> <v1>
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contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) } <v2>: * NEW: call(contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) }, contract|<v1>) -> <v2>
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block <v3>: {<: () -> T} NEW: r(block) -> <v3>
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block() <v4>: {<: T} NEW: call(block(), invoke|<v3>) -> <v4>
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return block() !<v5>: *
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{ contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) } return block() } !<v5>: * COPY
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=====================
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== anonymous_0 ==
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{
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callsInPlace(block, InvocationKind.EXACTLY_ONCE)
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}
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---------------------
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<v0>: {<: ContractBuilder} NEW: magic[IMPLICIT_RECEIVER](callsInPlace(block, InvocationKind.EXACTLY_ONCE)) -> <v0>
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block <v1>: {<: Function<T>} NEW: r(block) -> <v1>
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EXACTLY_ONCE <v2>: {<: InvocationKind} NEW: r(EXACTLY_ONCE) -> <v2>
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InvocationKind.EXACTLY_ONCE <v2>: {<: InvocationKind} COPY
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callsInPlace(block, InvocationKind.EXACTLY_ONCE) <v3>: * NEW: call(callsInPlace(block, InvocationKind.EXACTLY_ONCE), callsInPlace|<v0>, <v1>, <v2>) -> <v3>
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callsInPlace(block, InvocationKind.EXACTLY_ONCE) <v3>: * COPY
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=====================
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== innerComputation ==
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fun innerComputation(): Int = 42
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---------------------
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42 <v0>: Int NEW: r(42) -> <v0>
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=====================
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== outerComputation ==
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fun outerComputation(): Int = 52
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---------------------
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52 <v0>: Int NEW: r(52) -> <v0>
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=====================
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== innerTryCatchInitializes ==
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fun innerTryCatchInitializes() {
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val x: Int
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try {
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myRun {
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try {
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x = innerComputation()
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x.inc()
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}
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catch (e: java.lang.Exception) {
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/** Potential reassignment because x.inc() could threw */
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x = 42
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x.inc()
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}
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}
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// Can get here only when inlined lambda exited properly, i.e. x is initialized
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x.inc()
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outerComputation()
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} catch (e: java.lang.Exception) {
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// Can get here if innerComputation() threw an exception that wasn't catched by the inner catch (x is not initialized)
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// OR if outerComputation() threw an exception (x is initialized because we reach outer computation only when inner finished ok)
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// So, x=I? here
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x.inc()
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// Potential reasignment
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x = 42
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}
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// Here x=I because outer try-catch either exited normally (x=I) or catched exception (x=I, with reassingment, though)
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x.inc()
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}
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---------------------
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<v5>: {<: Exception} NEW: magic[FAKE_INITIALIZER](e: java.lang.Exception) -> <v5>
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{ try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } } <v0>: {<: () -> Int} NEW: r({ try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } }) -> <v0>
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myRun { try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } } <v1>: * NEW: call(myRun { try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } }, myRun|<v0>) -> <v1>
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x <v2>: Int NEW: r(x) -> <v2>
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inc() <v3>: * NEW: call(inc(), inc|<v2>) -> <v3>
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x.inc() <v3>: * COPY
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outerComputation() <v4>: * NEW: call(outerComputation(), outerComputation) -> <v4>
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{ myRun { try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } } // Can get here only when inlined lambda exited properly, i.e. x is initialized x.inc() outerComputation() } <v4>: * COPY
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x <v6>: Int NEW: r(x) -> <v6>
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inc() <v7>: * NEW: call(inc(), inc|<v6>) -> <v7>
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x.inc() <v7>: * COPY
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42 <v8>: Int NEW: r(42) -> <v8>
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x = 42 !<v9>: *
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{ // Can get here if innerComputation() threw an exception that wasn't catched by the inner catch (x is not initialized) // OR if outerComputation() threw an exception (x is initialized because we reach outer computation only when inner finished ok) // So, x=I? here x.inc() // Potential reasignment x = 42 } !<v9>: * COPY
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try { myRun { try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } } // Can get here only when inlined lambda exited properly, i.e. x is initialized x.inc() outerComputation() } catch (e: java.lang.Exception) { // Can get here if innerComputation() threw an exception that wasn't catched by the inner catch (x is not initialized) // OR if outerComputation() threw an exception (x is initialized because we reach outer computation only when inner finished ok) // So, x=I? here x.inc() // Potential reasignment x = 42 } <v10>: * NEW: merge(try { myRun { try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } } // Can get here only when inlined lambda exited properly, i.e. x is initialized x.inc() outerComputation() } catch (e: java.lang.Exception) { // Can get here if innerComputation() threw an exception that wasn't catched by the inner catch (x is not initialized) // OR if outerComputation() threw an exception (x is initialized because we reach outer computation only when inner finished ok) // So, x=I? here x.inc() // Potential reasignment x = 42 }|<v4>, !<v9>) -> <v10>
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x <v11>: Int NEW: r(x) -> <v11>
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inc() <v12>: * NEW: call(inc(), inc|<v11>) -> <v12>
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x.inc() <v12>: * COPY
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{ val x: Int try { myRun { try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } } // Can get here only when inlined lambda exited properly, i.e. x is initialized x.inc() outerComputation() } catch (e: java.lang.Exception) { // Can get here if innerComputation() threw an exception that wasn't catched by the inner catch (x is not initialized) // OR if outerComputation() threw an exception (x is initialized because we reach outer computation only when inner finished ok) // So, x=I? here x.inc() // Potential reasignment x = 42 } // Here x=I because outer try-catch either exited normally (x=I) or catched exception (x=I, with reassingment, though) x.inc() } <v12>: * COPY
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=====================
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== inlined anonymous_1 ==
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{
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try {
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x = innerComputation()
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x.inc()
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}
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catch (e: java.lang.Exception) {
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/** Potential reassignment because x.inc() could threw */
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x = 42
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x.inc()
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}
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}
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---------------------
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<v3>: {<: Exception} NEW: magic[FAKE_INITIALIZER](e: java.lang.Exception) -> <v3>
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innerComputation() <v0>: Int NEW: call(innerComputation(), innerComputation) -> <v0>
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x <v1>: Int NEW: r(x) -> <v1>
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inc() <v2>: Int NEW: call(inc(), inc|<v1>) -> <v2>
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x.inc() <v2>: Int COPY
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{ x = innerComputation() x.inc() } <v2>: Int COPY
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42 <v4>: Int NEW: r(42) -> <v4>
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x <v5>: Int NEW: r(x) -> <v5>
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inc() <v6>: Int NEW: call(inc(), inc|<v5>) -> <v6>
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x.inc() <v6>: Int COPY
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{ /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } <v6>: Int COPY
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try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } <v7>: Int NEW: merge(try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() }|<v2>, <v6>) -> <v7>
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try { x = innerComputation() x.inc() } catch (e: java.lang.Exception) { /** Potential reassignment because x.inc() could threw */ x = 42 x.inc() } <v7>: Int COPY
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=====================
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