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C#: Fix CFG for switch expressions in Boolean/nullness contexts

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This commit is contained in:
Tom Hvitved
2019-06-07 15:30:30 +02:00
parent e538d8e9ac
commit 17aad4b0a5
10 changed files with 86 additions and 23 deletions
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12
csharp/ql/src/semmle/code/csharp/controlflow/internal/Completion.qll
View File

@@ -370,6 +370,12 @@ private predicate inBooleanContext(Expr e, boolean isBooleanCompletionForParent)
inBooleanContext(nce, _) and
isBooleanCompletionForParent = true
)
or
exists(SwitchExpr se |
inBooleanContext(se, _) and
e = se.getACase().getBody() and
isBooleanCompletionForParent = true
)
}
/**
@@ -406,6 +412,12 @@ private predicate inNullnessContext(Expr e, boolean isNullnessCompletionForParen
e = nce.getRightOperand() and
isNullnessCompletionForParent = true
)
or
exists(SwitchExpr se |
inNullnessContext(se, _) and
e = se.getACase().getBody() and
isNullnessCompletionForParent = true
)
}
/**

2
csharp/ql/src/semmle/code/csharp/exprs/Expr.qll
View File

@@ -511,6 +511,8 @@ class SwitchExpr extends Expr, Switch, @switch_expr {
override Expr getExpr() { result = this.getChild(-1) }
override SwitchCaseExpr getCase(int n) { result = this.getChild(n) }
override SwitchCaseExpr getACase() { result = this.getCase(_) }
}
/** A `case` expression or statement. */

5
csharp/ql/test/library-tests/controlflow/graph/BasicBlock.expected
View File

@@ -366,12 +366,15 @@
| Switch.cs:118:42:118:42 | 2 | Switch.cs:118:35:118:43 | return ...; | 2 |
| Switch.cs:120:17:120:17 | 1 | Switch.cs:120:9:120:18 | return ...; | 3 |
| Switch.cs:123:10:123:12 | enter M11 | Switch.cs:125:24:125:29 | Boolean b | 7 |
| Switch.cs:123:10:123:12 | exit M11 | Switch.cs:123:10:123:12 | exit M11 | 1 |
| Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:125:34:125:34 | access to local variable b | 1 |
| Switch.cs:125:37:125:46 | ... => ... | Switch.cs:125:42:125:46 | false | 3 |
| Switch.cs:126:13:126:19 | return ...; | Switch.cs:126:13:126:19 | return ...; | 1 |
| Switch.cs:129:12:129:14 | enter M12 | Switch.cs:131:28:131:35 | String s | 6 |
| Switch.cs:131:9:131:67 | return ...; | Switch.cs:129:12:129:14 | exit M12 | 2 |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:40:131:40 | access to local variable s | 1 |
| Switch.cs:131:43:131:51 | ... => ... | Switch.cs:131:48:131:51 | null | 3 |
| Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:129:12:129:14 | exit M12 | 3 |
| Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:56:131:66 | call to method ToString | 1 |
| TypeAccesses.cs:3:10:3:10 | enter M | TypeAccesses.cs:7:13:7:22 | ... is ... | 14 |
| TypeAccesses.cs:7:25:7:25 | ; | TypeAccesses.cs:7:25:7:25 | ; | 1 |
| TypeAccesses.cs:8:9:8:28 | ... ...; | TypeAccesses.cs:3:10:3:10 | exit M | 4 |

22
csharp/ql/test/library-tests/controlflow/graph/BasicBlockDominance.expected
View File

@@ -723,14 +723,22 @@
| post | Switch.cs:118:42:118:42 | 2 | Switch.cs:118:42:118:42 | 2 |
| post | Switch.cs:120:17:120:17 | 1 | Switch.cs:120:17:120:17 | 1 |
| post | Switch.cs:123:10:123:12 | enter M11 | Switch.cs:123:10:123:12 | enter M11 |
| post | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:123:10:123:12 | enter M11 |
| post | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:123:10:123:12 | exit M11 |
| post | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:125:34:125:34 | access to local variable b |
| post | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:125:37:125:46 | ... => ... |
| post | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:126:13:126:19 | return ...; |
| post | Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:125:34:125:34 | access to local variable b |
| post | Switch.cs:125:37:125:46 | ... => ... | Switch.cs:125:37:125:46 | ... => ... |
| post | Switch.cs:126:13:126:19 | return ...; | Switch.cs:126:13:126:19 | return ...; |
| post | Switch.cs:129:12:129:14 | enter M12 | Switch.cs:129:12:129:14 | enter M12 |
| post | Switch.cs:131:9:131:67 | return ...; | Switch.cs:129:12:129:14 | enter M12 |
| post | Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:9:131:67 | return ...; |
| post | Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:40:131:40 | access to local variable s |
| post | Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:43:131:51 | ... => ... |
| post | Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:56:131:66 | call to method ToString |
| post | Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:40:131:40 | access to local variable s |
| post | Switch.cs:131:43:131:51 | ... => ... | Switch.cs:131:43:131:51 | ... => ... |
| post | Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:129:12:129:14 | enter M12 |
| post | Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:40:131:40 | access to local variable s |
| post | Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:43:131:51 | ... => ... |
| post | Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:56:131:66 | call to method ToString |
| post | TypeAccesses.cs:3:10:3:10 | enter M | TypeAccesses.cs:3:10:3:10 | enter M |
| post | TypeAccesses.cs:7:25:7:25 | ; | TypeAccesses.cs:7:25:7:25 | ; |
@@ -2255,15 +2263,23 @@
| pre | Switch.cs:118:42:118:42 | 2 | Switch.cs:118:42:118:42 | 2 |
| pre | Switch.cs:120:17:120:17 | 1 | Switch.cs:120:17:120:17 | 1 |
| pre | Switch.cs:123:10:123:12 | enter M11 | Switch.cs:123:10:123:12 | enter M11 |
| pre | Switch.cs:123:10:123:12 | enter M11 | Switch.cs:123:10:123:12 | exit M11 |
| pre | Switch.cs:123:10:123:12 | enter M11 | Switch.cs:125:34:125:34 | access to local variable b |
| pre | Switch.cs:123:10:123:12 | enter M11 | Switch.cs:125:37:125:46 | ... => ... |
| pre | Switch.cs:123:10:123:12 | enter M11 | Switch.cs:126:13:126:19 | return ...; |
| pre | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:123:10:123:12 | exit M11 |
| pre | Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:125:34:125:34 | access to local variable b |
| pre | Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:126:13:126:19 | return ...; |
| pre | Switch.cs:125:37:125:46 | ... => ... | Switch.cs:125:37:125:46 | ... => ... |
| pre | Switch.cs:126:13:126:19 | return ...; | Switch.cs:126:13:126:19 | return ...; |
| pre | Switch.cs:129:12:129:14 | enter M12 | Switch.cs:129:12:129:14 | enter M12 |
| pre | Switch.cs:129:12:129:14 | enter M12 | Switch.cs:131:9:131:67 | return ...; |
| pre | Switch.cs:129:12:129:14 | enter M12 | Switch.cs:131:40:131:40 | access to local variable s |
| pre | Switch.cs:129:12:129:14 | enter M12 | Switch.cs:131:43:131:51 | ... => ... |
| pre | Switch.cs:129:12:129:14 | enter M12 | Switch.cs:131:56:131:66 | call to method ToString |
| pre | Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:9:131:67 | return ...; |
| pre | Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:40:131:40 | access to local variable s |
| pre | Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:56:131:66 | call to method ToString |
| pre | Switch.cs:131:43:131:51 | ... => ... | Switch.cs:131:43:131:51 | ... => ... |
| pre | Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:56:131:66 | call to method ToString |
| pre | TypeAccesses.cs:3:10:3:10 | enter M | TypeAccesses.cs:3:10:3:10 | enter M |

4
csharp/ql/test/library-tests/controlflow/graph/ConditionBlock.expected
View File

@@ -329,8 +329,12 @@
| Switch.cs:118:25:118:31 | ... == ... | Switch.cs:118:42:118:42 | 2 | true |
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:34:125:34 | access to local variable b | true |
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:37:125:46 | ... => ... | false |
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:126:13:126:19 | return ...; | true |
| Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:126:13:126:19 | return ...; | true |
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:40:131:40 | access to local variable s | true |
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:43:131:51 | ... => ... | false |
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:56:131:66 | call to method ToString | true |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:56:131:66 | call to method ToString | false |
| TypeAccesses.cs:7:13:7:22 | ... is ... | TypeAccesses.cs:7:25:7:25 | ; | true |
| VarDecls.cs:25:20:25:20 | access to parameter b | VarDecls.cs:25:24:25:24 | access to local variable x | true |
| VarDecls.cs:25:20:25:20 | access to parameter b | VarDecls.cs:25:28:25:28 | access to local variable y | false |

3
csharp/ql/test/library-tests/controlflow/graph/ConditionalFlow.expected
View File

@@ -197,6 +197,9 @@
| 119 | 18 | Conditions.cs:119:18:119:21 | access to local variable last | true | 121 | 13 | Conditions.cs:121:13:122:25 | [last (line 118): true] if (...) ... |
| 121 | 17 | Conditions.cs:121:17:121:20 | [last (line 118): false] access to local variable last | false | 116 | 41 | Conditions.cs:116:41:116:41 | access to local variable i |
| 121 | 17 | Conditions.cs:121:17:121:20 | [last (line 118): true] access to local variable last | true | 122 | 17 | Conditions.cs:122:17:122:25 | ...; |
| 125 | 34 | Switch.cs:125:34:125:34 | access to local variable b | false | 123 | 10 | Switch.cs:123:10:123:12 | exit M11 |
| 125 | 34 | Switch.cs:125:34:125:34 | access to local variable b | true | 126 | 13 | Switch.cs:126:13:126:19 | return ...; |
| 125 | 42 | Switch.cs:125:42:125:46 | false | false | 123 | 10 | Switch.cs:123:10:123:12 | exit M11 |
| 127 | 32 | cflow.cs:127:32:127:44 | ... == ... | false | 127 | 53 | cflow.cs:127:53:127:57 | this access |
| 127 | 32 | cflow.cs:127:32:127:44 | ... == ... | true | 127 | 48 | cflow.cs:127:48:127:49 | "" |
| 131 | 16 | Conditions.cs:131:16:131:19 | [Field1 (line 129): false] true | true | 132 | 9 | Conditions.cs:132:9:140:9 | [Field1 (line 129): false] {...} |

10
csharp/ql/test/library-tests/controlflow/graph/Dominance.expected
View File

@@ -1485,6 +1485,9 @@
| post | Switch.cs:118:35:118:43 | return ...; | Switch.cs:118:42:118:42 | 2 |
| post | Switch.cs:120:9:120:18 | return ...; | Switch.cs:120:16:120:17 | -... |
| post | Switch.cs:120:16:120:17 | -... | Switch.cs:120:17:120:17 | 1 |
| post | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:125:34:125:34 | access to local variable b |
| post | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:125:42:125:46 | false |
| post | Switch.cs:123:10:123:12 | exit M11 | Switch.cs:126:13:126:19 | return ...; |
| post | Switch.cs:124:5:127:5 | {...} | Switch.cs:123:10:123:12 | enter M11 |
| post | Switch.cs:125:9:126:19 | if (...) ... | Switch.cs:124:5:127:5 | {...} |
| post | Switch.cs:125:13:125:13 | access to parameter o | Switch.cs:125:13:125:48 | ... switch { ... } |
@@ -1495,6 +1498,8 @@
| post | Switch.cs:125:42:125:46 | false | Switch.cs:125:37:125:37 | _ |
| post | Switch.cs:129:12:129:14 | exit M12 | Switch.cs:131:9:131:67 | return ...; |
| post | Switch.cs:130:5:132:5 | {...} | Switch.cs:129:12:129:14 | enter M12 |
| post | Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:40:131:40 | access to local variable s |
| post | Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:48:131:51 | null |
| post | Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:56:131:66 | call to method ToString |
| post | Switch.cs:131:17:131:17 | access to parameter o | Switch.cs:131:17:131:53 | ... switch { ... } |
| post | Switch.cs:131:17:131:53 | ... switch { ... } | Switch.cs:130:5:132:5 | {...} |
@@ -1502,8 +1507,6 @@
| post | Switch.cs:131:28:131:40 | ... => ... | Switch.cs:131:17:131:17 | access to parameter o |
| post | Switch.cs:131:43:131:43 | _ | Switch.cs:131:43:131:51 | ... => ... |
| post | Switch.cs:131:48:131:51 | null | Switch.cs:131:43:131:43 | _ |
| post | Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:40:131:40 | access to local variable s |
| post | Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:48:131:51 | null |
| post | TypeAccesses.cs:3:10:3:10 | exit M | TypeAccesses.cs:8:13:8:27 | Type t = ... |
| post | TypeAccesses.cs:4:5:9:5 | {...} | TypeAccesses.cs:3:10:3:10 | enter M |
| post | TypeAccesses.cs:5:9:5:26 | ... ...; | TypeAccesses.cs:4:5:9:5 | {...} |
@@ -3991,6 +3994,7 @@
| pre | Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:34:125:34 | access to local variable b |
| pre | Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:37:125:46 | ... => ... |
| pre | Switch.cs:125:24:125:34 | ... => ... | Switch.cs:125:24:125:29 | Boolean b |
| pre | Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:126:13:126:19 | return ...; |
| pre | Switch.cs:125:37:125:37 | _ | Switch.cs:125:42:125:46 | false |
| pre | Switch.cs:125:37:125:46 | ... => ... | Switch.cs:125:37:125:37 | _ |
| pre | Switch.cs:129:12:129:14 | enter M12 | Switch.cs:130:5:132:5 | {...} |
@@ -4001,9 +4005,9 @@
| pre | Switch.cs:131:28:131:35 | String s | Switch.cs:131:40:131:40 | access to local variable s |
| pre | Switch.cs:131:28:131:35 | String s | Switch.cs:131:43:131:51 | ... => ... |
| pre | Switch.cs:131:28:131:40 | ... => ... | Switch.cs:131:28:131:35 | String s |
| pre | Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:56:131:66 | call to method ToString |
| pre | Switch.cs:131:43:131:43 | _ | Switch.cs:131:48:131:51 | null |
| pre | Switch.cs:131:43:131:51 | ... => ... | Switch.cs:131:43:131:43 | _ |
| pre | Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:9:131:67 | return ...; |
| pre | TypeAccesses.cs:3:10:3:10 | enter M | TypeAccesses.cs:4:5:9:5 | {...} |
| pre | TypeAccesses.cs:4:5:9:5 | {...} | TypeAccesses.cs:5:9:5:26 | ... ...; |
| pre | TypeAccesses.cs:5:9:5:26 | ... ...; | TypeAccesses.cs:5:25:5:25 | access to parameter o |

6
csharp/ql/test/library-tests/controlflow/graph/ElementGraph.expected
View File

@@ -1264,6 +1264,7 @@
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:34:125:34 | access to local variable b | semmle.label | match |
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:37:125:46 | ... => ... | semmle.label | no-match |
| Switch.cs:125:24:125:34 | ... => ... | Switch.cs:125:24:125:29 | Boolean b | semmle.label | successor |
| Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:126:13:126:19 | return ...; | semmle.label | true |
| Switch.cs:125:37:125:37 | _ | Switch.cs:125:42:125:46 | false | semmle.label | match |
| Switch.cs:125:37:125:46 | ... => ... | Switch.cs:125:37:125:37 | _ | semmle.label | successor |
| Switch.cs:130:5:132:5 | {...} | Switch.cs:131:17:131:53 | ... switch { ... } | semmle.label | successor |
@@ -1272,10 +1273,11 @@
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:40:131:40 | access to local variable s | semmle.label | match |
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:43:131:51 | ... => ... | semmle.label | no-match |
| Switch.cs:131:28:131:40 | ... => ... | Switch.cs:131:28:131:35 | String s | semmle.label | successor |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:56:131:66 | call to method ToString | semmle.label | successor |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:9:131:67 | return ...; | semmle.label | null |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:56:131:66 | call to method ToString | semmle.label | non-null |
| Switch.cs:131:43:131:43 | _ | Switch.cs:131:48:131:51 | null | semmle.label | match |
| Switch.cs:131:43:131:51 | ... => ... | Switch.cs:131:43:131:43 | _ | semmle.label | successor |
| Switch.cs:131:48:131:51 | null | Switch.cs:131:56:131:66 | call to method ToString | semmle.label | successor |
| Switch.cs:131:48:131:51 | null | Switch.cs:131:9:131:67 | return ...; | semmle.label | null |
| Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:9:131:67 | return ...; | semmle.label | successor |
| TypeAccesses.cs:4:5:9:5 | {...} | TypeAccesses.cs:5:9:5:26 | ... ...; | semmle.label | successor |
| TypeAccesses.cs:5:9:5:26 | ... ...; | TypeAccesses.cs:5:25:5:25 | access to parameter o | semmle.label | successor |

36
csharp/ql/test/library-tests/controlflow/graph/ExitElement.expected
View File

@@ -1734,33 +1734,45 @@
| Switch.cs:120:9:120:18 | return ...; | Switch.cs:120:9:120:18 | return ...; | return |
| Switch.cs:120:16:120:17 | -... | Switch.cs:120:16:120:17 | -... | normal |
| Switch.cs:120:17:120:17 | 1 | Switch.cs:120:17:120:17 | 1 | normal |
| Switch.cs:124:5:127:5 | {...} | Switch.cs:125:34:125:34 | access to local variable b | false/false |
| Switch.cs:124:5:127:5 | {...} | Switch.cs:125:42:125:46 | false | false/false |
| Switch.cs:124:5:127:5 | {...} | Switch.cs:126:13:126:19 | return ...; | return |
| Switch.cs:125:9:126:19 | if (...) ... | Switch.cs:125:34:125:34 | access to local variable b | false/false |
| Switch.cs:125:9:126:19 | if (...) ... | Switch.cs:125:42:125:46 | false | false/false |
| Switch.cs:125:9:126:19 | if (...) ... | Switch.cs:126:13:126:19 | return ...; | return |
| Switch.cs:125:13:125:13 | access to parameter o | Switch.cs:125:13:125:13 | access to parameter o | normal |
| Switch.cs:125:13:125:48 | ... switch { ... } | Switch.cs:125:34:125:34 | access to local variable b | normal |
| Switch.cs:125:13:125:48 | ... switch { ... } | Switch.cs:125:42:125:46 | false | normal |
| Switch.cs:125:13:125:48 | ... switch { ... } | Switch.cs:125:34:125:34 | access to local variable b | false/false |
| Switch.cs:125:13:125:48 | ... switch { ... } | Switch.cs:125:34:125:34 | access to local variable b | true/true |
| Switch.cs:125:13:125:48 | ... switch { ... } | Switch.cs:125:42:125:46 | false | false/false |
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:24:125:29 | Boolean b | match |
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:24:125:29 | Boolean b | no-match |
| Switch.cs:125:24:125:34 | ... => ... | Switch.cs:125:24:125:29 | Boolean b | no-match |
| Switch.cs:125:24:125:34 | ... => ... | Switch.cs:125:34:125:34 | access to local variable b | normal |
| Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:125:34:125:34 | access to local variable b | normal |
| Switch.cs:125:24:125:34 | ... => ... | Switch.cs:125:34:125:34 | access to local variable b | false/false |
| Switch.cs:125:24:125:34 | ... => ... | Switch.cs:125:34:125:34 | access to local variable b | true/true |
| Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:125:34:125:34 | access to local variable b | false/false |
| Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:125:34:125:34 | access to local variable b | true/true |
| Switch.cs:125:37:125:37 | _ | Switch.cs:125:37:125:37 | _ | match |
| Switch.cs:125:37:125:46 | ... => ... | Switch.cs:125:42:125:46 | false | normal |
| Switch.cs:125:42:125:46 | false | Switch.cs:125:42:125:46 | false | normal |
| Switch.cs:125:37:125:46 | ... => ... | Switch.cs:125:42:125:46 | false | false/false |
| Switch.cs:125:42:125:46 | false | Switch.cs:125:42:125:46 | false | false/false |
| Switch.cs:126:13:126:19 | return ...; | Switch.cs:126:13:126:19 | return ...; | return |
| Switch.cs:130:5:132:5 | {...} | Switch.cs:131:9:131:67 | return ...; | return |
| Switch.cs:131:9:131:67 | return ...; | Switch.cs:131:9:131:67 | return ...; | return |
| Switch.cs:131:17:131:17 | access to parameter o | Switch.cs:131:17:131:17 | access to parameter o | normal |
| Switch.cs:131:17:131:53 | ... switch { ... } | Switch.cs:131:40:131:40 | access to local variable s | normal |
| Switch.cs:131:17:131:53 | ... switch { ... } | Switch.cs:131:48:131:51 | null | normal |
| Switch.cs:131:17:131:53 | ... switch { ... } | Switch.cs:131:40:131:40 | access to local variable s | non-null |
| Switch.cs:131:17:131:53 | ... switch { ... } | Switch.cs:131:40:131:40 | access to local variable s | null |
| Switch.cs:131:17:131:53 | ... switch { ... } | Switch.cs:131:48:131:51 | null | null |
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:28:131:35 | String s | match |
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:28:131:35 | String s | no-match |
| Switch.cs:131:28:131:40 | ... => ... | Switch.cs:131:28:131:35 | String s | no-match |
| Switch.cs:131:28:131:40 | ... => ... | Switch.cs:131:40:131:40 | access to local variable s | normal |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:40:131:40 | access to local variable s | normal |
| Switch.cs:131:28:131:40 | ... => ... | Switch.cs:131:40:131:40 | access to local variable s | non-null |
| Switch.cs:131:28:131:40 | ... => ... | Switch.cs:131:40:131:40 | access to local variable s | null |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:40:131:40 | access to local variable s | non-null |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:40:131:40 | access to local variable s | null |
| Switch.cs:131:43:131:43 | _ | Switch.cs:131:43:131:43 | _ | match |
| Switch.cs:131:43:131:51 | ... => ... | Switch.cs:131:48:131:51 | null | normal |
| Switch.cs:131:48:131:51 | null | Switch.cs:131:48:131:51 | null | normal |
| Switch.cs:131:43:131:51 | ... => ... | Switch.cs:131:48:131:51 | null | null |
| Switch.cs:131:48:131:51 | null | Switch.cs:131:48:131:51 | null | null |
| Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:40:131:40 | access to local variable s | null |
| Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:48:131:51 | null | null |
| Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:56:131:66 | call to method ToString | normal |
| TypeAccesses.cs:4:5:9:5 | {...} | TypeAccesses.cs:8:13:8:27 | Type t = ... | normal |
| TypeAccesses.cs:5:9:5:26 | ... ...; | TypeAccesses.cs:5:13:5:25 | String s = ... | normal |

9
csharp/ql/test/library-tests/controlflow/graph/NodeGraph.expected
View File

@@ -1709,8 +1709,12 @@
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:34:125:34 | access to local variable b | semmle.label | match |
| Switch.cs:125:24:125:29 | Boolean b | Switch.cs:125:37:125:46 | ... => ... | semmle.label | no-match |
| Switch.cs:125:24:125:34 | ... => ... | Switch.cs:125:24:125:29 | Boolean b | semmle.label | successor |
| Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:123:10:123:12 | exit M11 | semmle.label | false |
| Switch.cs:125:34:125:34 | access to local variable b | Switch.cs:126:13:126:19 | return ...; | semmle.label | true |
| Switch.cs:125:37:125:37 | _ | Switch.cs:125:42:125:46 | false | semmle.label | match |
| Switch.cs:125:37:125:46 | ... => ... | Switch.cs:125:37:125:37 | _ | semmle.label | successor |
| Switch.cs:125:42:125:46 | false | Switch.cs:123:10:123:12 | exit M11 | semmle.label | false |
| Switch.cs:126:13:126:19 | return ...; | Switch.cs:123:10:123:12 | exit M11 | semmle.label | return |
| Switch.cs:129:12:129:14 | enter M12 | Switch.cs:130:5:132:5 | {...} | semmle.label | successor |
| Switch.cs:130:5:132:5 | {...} | Switch.cs:131:17:131:53 | ... switch { ... } | semmle.label | successor |
| Switch.cs:131:9:131:67 | return ...; | Switch.cs:129:12:129:14 | exit M12 | semmle.label | return |
@@ -1719,10 +1723,11 @@
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:40:131:40 | access to local variable s | semmle.label | match |
| Switch.cs:131:28:131:35 | String s | Switch.cs:131:43:131:51 | ... => ... | semmle.label | no-match |
| Switch.cs:131:28:131:40 | ... => ... | Switch.cs:131:28:131:35 | String s | semmle.label | successor |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:56:131:66 | call to method ToString | semmle.label | successor |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:9:131:67 | return ...; | semmle.label | null |
| Switch.cs:131:40:131:40 | access to local variable s | Switch.cs:131:56:131:66 | call to method ToString | semmle.label | non-null |
| Switch.cs:131:43:131:43 | _ | Switch.cs:131:48:131:51 | null | semmle.label | match |
| Switch.cs:131:43:131:51 | ... => ... | Switch.cs:131:43:131:43 | _ | semmle.label | successor |
| Switch.cs:131:48:131:51 | null | Switch.cs:131:56:131:66 | call to method ToString | semmle.label | successor |
| Switch.cs:131:48:131:51 | null | Switch.cs:131:9:131:67 | return ...; | semmle.label | null |
| Switch.cs:131:56:131:66 | call to method ToString | Switch.cs:131:9:131:67 | return ...; | semmle.label | successor |
| TypeAccesses.cs:3:10:3:10 | enter M | TypeAccesses.cs:4:5:9:5 | {...} | semmle.label | successor |
| TypeAccesses.cs:4:5:9:5 | {...} | TypeAccesses.cs:5:9:5:26 | ... ...; | semmle.label | successor |