Analyze Data Flow: Initial implementation

#KT-11994 In Progress

idea/testData/slicer/inflow/cast.kt

@@ -0,0 +1,5 @@
+// FLOW: IN
+
+fun test(o: Any) {
+    val <caret>x = o as String
+}

idea/testData/slicer/inflow/cast.results.txt

@@ -0,0 +1,4 @@
+4 val <bold>x = o as String</bold>
+4 	val x = <bold>o as String</bold>
+4 		val x = <bold>o</bold> as String
+3 			fun test(<bold>o: Any</bold>) {

idea/testData/slicer/inflow/funParamerer.kt

@@ -0,0 +1,13 @@
+// FLOW: IN
+
+fun foo(<caret>n: Int, s: String = "???") {
+
+}
+
+fun test() {
+    foo(1)
+    foo(1, "2")
+    foo(1, s = "2")
+    foo(n = 1, s = "2")
+    foo(s = "2", n = 1)
+}

idea/testData/slicer/inflow/funParamerer.results.txt

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+3 fun foo(<bold>n: Int</bold>, s: String = "???") {
+8 	foo(<bold>1</bold>)
+9 	foo(<bold>1</bold>, "2")
+10 	foo(<bold>1</bold>, s = "2")
+11 	foo(n = <bold>1</bold>, s = "2")
+12 	foo(s = "2", n = <bold>1</bold>)

idea/testData/slicer/inflow/funParamererWithDefault.kt

@@ -0,0 +1,13 @@
+// FLOW: IN
+
+fun foo(n: Int, <caret>s: String = "???") {
+
+}
+
+fun test() {
+    foo(1)
+    foo(1, "2")
+    foo(1, s = "2")
+    foo(n = 1, s = "2")
+    foo(s = "2", n = 1)
+}

idea/testData/slicer/inflow/funParamererWithDefault.results.txt

@@ -0,0 +1,6 @@
+3 fun foo(n: Int, <bold>s: String = "???"</bold>) {
+3 	fun foo(n: Int, s: String = <bold>"???"</bold>) {
+9 	foo(1, <bold>"2"</bold>)
+10 	foo(1, s = <bold>"2"</bold>)
+11 	foo(n = 1, s = <bold>"2"</bold>)
+12 	foo(s = <bold>"2"</bold>, n = 1)

idea/testData/slicer/inflow/funWithExpressionBody.kt

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+// FLOW: IN
+
+fun <caret>foo(n: Int) = n + 1

idea/testData/slicer/inflow/funWithExpressionBody.results.txt

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+3 fun <bold>foo(n: Int) = n + 1</bold>
+3 	fun foo(n: Int) = <bold>n + 1</bold>

idea/testData/slicer/inflow/funWithReturnExpressions.kt

@@ -0,0 +1,6 @@
+// FLOW: IN
+
+fun <caret>foo(n: Int): Int {
+    if (n > 0) return n
+    return -n
+}

idea/testData/slicer/inflow/funWithReturnExpressions.results.txt

@@ -0,0 +1,4 @@
+3 fun <bold>foo(n: Int): Int {</bold>
+4 	if (n > 0) return <bold>n</bold>
+3 		fun foo(<bold>n: Int</bold>): Int {
+5 	return <bold>-n</bold>

idea/testData/slicer/inflow/ifExpression.kt

@@ -0,0 +1,5 @@
+// FLOW: IN
+
+fun test(m: Int, n: Int) {
+    val <caret>x = if (m > 1) n else 1
+}

idea/testData/slicer/inflow/ifExpression.results.txt

@@ -0,0 +1,5 @@
+4 val <bold>x = if (m > 1) n else 1</bold>
+4 	val x = <bold>if (m > 1) n else 1</bold>
+4 		val x = if (m > 1) <bold>n</bold> else 1
+3 			fun test(m: Int, <bold>n: Int</bold>) {
+4 		val x = if (m > 1) n else <bold>1</bold>

idea/testData/slicer/inflow/localVal.kt

@@ -0,0 +1,6 @@
+// FLOW: IN
+
+fun test(n: Int) {
+    val <caret>x = n
+    val y = x
+}

idea/testData/slicer/inflow/localVal.results.txt

@@ -0,0 +1,3 @@
+4 val <bold>x = n</bold>
+4 	val x = <bold>n</bold>
+3 		fun test(<bold>n: Int</bold>) {

idea/testData/slicer/inflow/localVar.kt

@@ -0,0 +1,7 @@
+// FLOW: IN
+
+fun test(n: Int) {
+    var <caret>x = n
+    val y = x
+    x = 0
+}

idea/testData/slicer/inflow/localVar.results.txt

@@ -0,0 +1,4 @@
+4 var <bold>x = n</bold>
+4 	var x = <bold>n</bold>
+3 		fun test(<bold>n: Int</bold>) {
+6 	x = <bold>0</bold>

idea/testData/slicer/inflow/memberValWithInitializer.kt

@@ -0,0 +1,10 @@
+// FLOW: IN
+
+class A {
+    val <caret>x: Int = 1
+    val y = x
+
+    fun test() {
+        val y = x
+    }
+}

idea/testData/slicer/inflow/memberValWithInitializer.results.txt

@@ -0,0 +1,2 @@
+4 val <bold>x: Int = 1</bold>
+4 	val x: Int = <bold>1</bold>

idea/testData/slicer/inflow/memberValWithSplitInitializer.kt

@@ -0,0 +1,15 @@
+// FLOW: IN
+
+class A {
+    val <caret>x: Int
+
+    init {
+        x = 1
+    }
+
+    val y = x
+
+    fun test() {
+        val y = x
+    }
+}

idea/testData/slicer/inflow/memberValWithSplitInitializer.results.txt

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+4 val <bold>x: Int</bold>
+7 	x = <bold>1</bold>

idea/testData/slicer/inflow/memberVarWithInitializer.kt

@@ -0,0 +1,11 @@
+// FLOW: IN
+
+class A {
+    var <caret>x: Int = 1
+    val y = x
+
+    fun test() {
+        val y = x
+        x = 2
+    }
+}

idea/testData/slicer/inflow/memberVarWithInitializer.results.txt

@@ -0,0 +1,3 @@
+4 var <bold>x: Int = 1</bold>
+4 	var x: Int = <bold>1</bold>
+9 	x = <bold>2</bold>

idea/testData/slicer/inflow/memberVarWithSplitInitializer.kt

@@ -0,0 +1,16 @@
+// FLOW: IN
+
+class A {
+    var <caret>x: Int
+
+    init {
+        x = 1
+    }
+
+    val y = x
+
+    fun test() {
+        val y = x
+        x = 2
+    }
+}

idea/testData/slicer/inflow/memberVarWithSplitInitializer.results.txt

@@ -0,0 +1,3 @@
+4 var <bold>x: Int</bold>
+7 	x = <bold>1</bold>
+14 	x = <bold>2</bold>

idea/testData/slicer/inflow/notNullAssertion.kt

@@ -0,0 +1,5 @@
+// FLOW: IN
+
+fun test(s: String?) {
+    val <caret>x = s!!
+}

idea/testData/slicer/inflow/notNullAssertion.results.txt

@@ -0,0 +1,4 @@
+4 val <bold>x = s!!</bold>
+4 	val x = <bold>s!!</bold>
+4 		val x = <bold>s</bold>!!
+3 			fun test(<bold>s: String?</bold>) {

idea/testData/slicer/inflow/primaryConstructorParameter.kt

@@ -0,0 +1,17 @@
+// FLOW: IN
+
+open class A(<caret>n: Int, s: String = "???")
+
+class B1: A(1)
+class B2: A(1, "2")
+class B3: A(1, s = "2")
+class B4: A(n = 1, s = "2")
+class B5: A(s = "2", n = 1)
+
+fun test() {
+    A(1)
+    A(1, "2")
+    A(1, s = "2")
+    A(n = 1, s = "2")
+    A(s = "2", n = 1)
+}

idea/testData/slicer/inflow/primaryConstructorParameter.results.txt

@@ -0,0 +1,11 @@
+3 open class A(<bold>n: Int</bold>, s: String = "???")
+5 	class B1: A(<bold>1</bold>)
+6 	class B2: A(<bold>1</bold>, "2")
+7 	class B3: A(<bold>1</bold>, s = "2")
+8 	class B4: A(n = <bold>1</bold>, s = "2")
+9 	class B5: A(s = "2", n = <bold>1</bold>)
+12 	A(<bold>1</bold>)
+13 	A(<bold>1</bold>, "2")
+14 	A(<bold>1</bold>, s = "2")
+15 	A(n = <bold>1</bold>, s = "2")
+16 	A(s = "2", n = <bold>1</bold>)

idea/testData/slicer/inflow/primaryConstructorParameterWithDefault.kt

@@ -0,0 +1,17 @@
+// FLOW: IN
+
+open class A(n: Int, <caret>s: String = "???")
+
+class B1: A(1)
+class B2: A(1, "2")
+class B3: A(1, s = "2")
+class B4: A(n = 1, s = "2")
+class B5: A(s = "2", n = 1)
+
+fun test() {
+    A(1)
+    A(1, "2")
+    A(1, s = "2")
+    A(n = 1, s = "2")
+    A(s = "2", n = 1)
+}

idea/testData/slicer/inflow/primaryConstructorParameterWithDefault.results.txt

@@ -0,0 +1,10 @@
+3 open class A(n: Int, <bold>s: String = "???"</bold>)
+3 	open class A(n: Int, s: String = <bold>"???"</bold>)
+6 	class B2: A(1, <bold>"2"</bold>)
+7 	class B3: A(1, s = <bold>"2"</bold>)
+8 	class B4: A(n = 1, s = <bold>"2"</bold>)
+9 	class B5: A(s = <bold>"2"</bold>, n = 1)
+13 	A(1, <bold>"2"</bold>)
+14 	A(1, s = <bold>"2"</bold>)
+15 	A(n = 1, s = <bold>"2"</bold>)
+16 	A(s = <bold>"2"</bold>, n = 1)

idea/testData/slicer/inflow/safeCast.kt

@@ -0,0 +1,5 @@
+// FLOW: IN
+
+fun test(o: Any) {
+    val <caret>x = o as? String
+}

idea/testData/slicer/inflow/safeCast.results.txt

@@ -0,0 +1,4 @@
+4 val <bold>x = o as? String</bold>
+4 	val x = <bold>o as? String</bold>
+4 		val x = <bold>o</bold> as? String
+3 			fun test(<bold>o: Any</bold>) {

idea/testData/slicer/inflow/secondaryConstructorParameter.kt

@@ -0,0 +1,19 @@
+// FLOW: IN
+
+open class A {
+    constructor(<caret>n: Int, s: String = "???")
+}
+
+class B1: A(1)
+class B2: A(1, "2")
+class B3: A(1, s = "2")
+class B4: A(n = 1, s = "2")
+class B5: A(s = "2", n = 1)
+
+fun test() {
+    A(1)
+    A(1, "2")
+    A(1, s = "2")
+    A(n = 1, s = "2")
+    A(s = "2", n = 1)
+}

idea/testData/slicer/inflow/secondaryConstructorParameter.results.txt

@@ -0,0 +1,11 @@
+4 constructor(<bold>n: Int</bold>, s: String = "???")
+7 	class B1: A(<bold>1</bold>)
+8 	class B2: A(<bold>1</bold>, "2")
+9 	class B3: A(<bold>1</bold>, s = "2")
+10 	class B4: A(n = <bold>1</bold>, s = "2")
+11 	class B5: A(s = "2", n = <bold>1</bold>)
+14 	A(<bold>1</bold>)
+15 	A(<bold>1</bold>, "2")
+16 	A(<bold>1</bold>, s = "2")
+17 	A(n = <bold>1</bold>, s = "2")
+18 	A(s = "2", n = <bold>1</bold>)

idea/testData/slicer/inflow/secondaryConstructorParameterWithDefault.kt

@@ -0,0 +1,19 @@
+// FLOW: IN
+
+open class A {
+    constructor(n: Int, <caret>s: String = "???")
+}
+
+class B1: A(1)
+class B2: A(1, "2")
+class B3: A(1, s = "2")
+class B4: A(n = 1, s = "2")
+class B5: A(s = "2", n = 1)
+
+fun test() {
+    A(1)
+    A(1, "2")
+    A(1, s = "2")
+    A(n = 1, s = "2")
+    A(s = "2", n = 1)
+}

idea/testData/slicer/inflow/secondaryConstructorParameterWithDefault.results.txt

@@ -0,0 +1,10 @@
+4 constructor(n: Int, <bold>s: String = "???"</bold>)
+4 	constructor(n: Int, s: String = <bold>"???"</bold>)
+8 	class B2: A(1, <bold>"2"</bold>)
+9 	class B3: A(1, s = <bold>"2"</bold>)
+10 	class B4: A(n = 1, s = <bold>"2"</bold>)
+11 	class B5: A(s = <bold>"2"</bold>, n = 1)
+15 	A(1, <bold>"2"</bold>)
+16 	A(1, s = <bold>"2"</bold>)
+17 	A(n = 1, s = <bold>"2"</bold>)
+18 	A(s = <bold>"2"</bold>, n = 1)

idea/testData/slicer/inflow/topLevelVal.kt

@@ -0,0 +1,7 @@
+// FLOW: IN
+
+val <caret>foo: Int = 1
+
+fun test() {
+    val x = foo
+}

idea/testData/slicer/inflow/topLevelVal.results.txt

@@ -0,0 +1,2 @@
+3 val <bold>foo: Int = 1</bold>
+3 	val foo: Int = <bold>1</bold>

idea/testData/slicer/inflow/topLevelVar.kt

@@ -0,0 +1,8 @@
+// FLOW: IN
+
+var <caret>foo: Int = 1
+
+fun test() {
+    val x = foo
+    foo = 2
+}

idea/testData/slicer/inflow/topLevelVar.results.txt

@@ -0,0 +1,3 @@
+3 var <bold>foo: Int = 1</bold>
+3 	var foo: Int = <bold>1</bold>
+7 	foo = <bold>2</bold>

idea/testData/slicer/inflow/whenExpression.kt

@@ -0,0 +1,9 @@
+// FLOW: IN
+
+fun test(m: Int, n: Int) {
+    val <caret>x = when (m) {
+        1 -> 1
+        2 -> n
+        else -> 0
+    }
+}

idea/testData/slicer/inflow/whenExpression.results.txt

@@ -0,0 +1,6 @@
+4 val <bold>x = when (m) {</bold>
+4 	val x = <bold>when (m) {</bold>
+5 		1 -> <bold>1</bold>
+6 		2 -> <bold>n</bold>
+3 			fun test(m: Int, <bold>n: Int</bold>) {
+7 		else -> <bold>0</bold>