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Python: Yaml printAst and tests
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‎python/ql/lib/semmle/python/PrintAst.qll

Lines changed: 78 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -8,6 +8,7 @@
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import python
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import semmle.python.RegexTreeView
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import semmle.python.Yaml
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private newtype TPrintAstConfiguration = MkPrintAstConfiguration()
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@@ -53,7 +54,9 @@ private newtype TPrintAstNode =
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shouldPrint(list.getAnItem(), _) and
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not list = any(Module mod).getBody() and
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not forall(AstNode child | child = list.getAnItem() | isNotNeeded(child))
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}
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} or
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TYamlNode(YamlNode node) or
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TYamlMappingNode(YamlMapping mapping, int i) { exists(mapping.getKeyNode(i)) }
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/**
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* A node in the output tree.
@@ -633,6 +636,80 @@ private module PrettyPrinting {
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}
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}
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/**
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* Classes for printing YAML AST.
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*/
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module PrintYaml {
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/**
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* A print node representing a YAML value in a .yml file.
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*/
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class YamlNodeNode extends PrintAstNode, TYamlNode {
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YamlNode node;
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YamlNodeNode() { this = TYamlNode(node) }
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override string toString() {
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result = "[" + concat(node.getAPrimaryQlClass(), ",") + "] " + node.toString()
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}
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override Location getLocation() { result = node.getLocation() }
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/**
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* Gets the `YAMLNode` represented by this node.
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*/
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final YamlNode getValue() { result = node }
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override PrintAstNode getChild(int childIndex) {
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exists(YamlNode child | result.(YamlNodeNode).getValue() = child |
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child = node.getChildNode(childIndex)
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)
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}
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}
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/**
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* A print node representing a `YAMLMapping`.
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*
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* Each child of this node aggregates the key and value of a mapping.
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*/
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class YamlMappingNode extends YamlNodeNode {
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override YamlMapping node;
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override PrintAstNode getChild(int childIndex) {
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exists(YamlMappingMapNode map | map = result | map.maps(node, childIndex))
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}
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}
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/**
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* A print node representing the `i`th mapping in `mapping`.
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*/
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class YamlMappingMapNode extends PrintAstNode, TYamlMappingNode {
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YamlMapping mapping;
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int i;
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YamlMappingMapNode() { this = TYamlMappingNode(mapping, i) }
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override string toString() {
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result = "(Mapping " + i + ")" and not exists(mapping.getKeyNode(i).(YamlScalar).getValue())
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or
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result = "(Mapping " + i + ") " + mapping.getKeyNode(i).(YamlScalar).getValue() + ":"
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}
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/**
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* Holds if this print node represents the `index`th mapping of `m`.
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*/
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predicate maps(YamlMapping m, int index) {
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m = mapping and
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index = i
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}
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override PrintAstNode getChild(int childIndex) {
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childIndex = 0 and result.(YamlNodeNode).getValue() = mapping.getKeyNode(i)
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or
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childIndex = 1 and result.(YamlNodeNode).getValue() = mapping.getValueNode(i)
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}
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}
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}
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636713
/** Holds if `node` belongs to the output tree, and its property `key` has the given `value`. */
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query predicate nodes(PrintAstNode node, string key, string value) { value = node.getProperty(key) }
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‎python/ql/test/library-tests/Yaml/err.yaml

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,2 @@
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"unterminated string
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‎python/ql/test/library-tests/Yaml/external.yml

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1 @@
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42

‎python/ql/test/library-tests/Yaml/merge.yaml

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,3 @@
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- &A { x: 23, y: 42 }
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- x: 56
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<<: *A

‎python/ql/test/library-tests/Yaml/printAst.expected

Lines changed: 151 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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nodes
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| external.yml:1:1:1:2 | [YamlScalar] 42 | semmle.label | [YamlScalar] 42 |
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| external.yml:1:1:1:2 | [YamlScalar] 42 | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 0) name: | semmle.label | (Mapping 0) name: |
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| file://:0:0:0:0 | (Mapping 0) name: | semmle.label | (Mapping 0) name: |
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| file://:0:0:0:0 | (Mapping 0) street: | semmle.label | (Mapping 0) street: |
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| file://:0:0:0:0 | (Mapping 0) street: | semmle.label | (Mapping 0) street: |
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| file://:0:0:0:0 | (Mapping 0) x: | semmle.label | (Mapping 0) x: |
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| file://:0:0:0:0 | (Mapping 0) x: | semmle.label | (Mapping 0) x: |
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| file://:0:0:0:0 | (Mapping 1) <<: | semmle.label | (Mapping 1) <<: |
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| file://:0:0:0:0 | (Mapping 1) address: | semmle.label | (Mapping 1) address: |
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| file://:0:0:0:0 | (Mapping 1) address: | semmle.label | (Mapping 1) address: |
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| file://:0:0:0:0 | (Mapping 1) number: | semmle.label | (Mapping 1) number: |
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| file://:0:0:0:0 | (Mapping 1) number: | semmle.label | (Mapping 1) number: |
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| file://:0:0:0:0 | (Mapping 1) y: | semmle.label | (Mapping 1) y: |
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| file://:0:0:0:0 | (Mapping 2) country: | semmle.label | (Mapping 2) country: |
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| file://:0:0:0:0 | (Mapping 2) country: | semmle.label | (Mapping 2) country: |
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| merge.yaml:1:1:3:8 | [YamlSequence] - &A { ... y: 42 } | semmle.label | [YamlSequence] - &A { ... y: 42 } |
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| merge.yaml:1:1:3:8 | [YamlSequence] - &A { ... y: 42 } | semmle.order | 2 |
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| merge.yaml:1:3:1:21 | [YamlMapping] &A { x: 23, y: 42 } | semmle.label | [YamlMapping] &A { x: 23, y: 42 } |
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| merge.yaml:1:8:1:8 | [YamlScalar] x | semmle.label | [YamlScalar] x |
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| merge.yaml:1:11:1:12 | [YamlScalar] 23 | semmle.label | [YamlScalar] 23 |
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| merge.yaml:1:15:1:15 | [YamlScalar] y | semmle.label | [YamlScalar] y |
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| merge.yaml:1:18:1:19 | [YamlScalar] 42 | semmle.label | [YamlScalar] 42 |
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| merge.yaml:2:3:2:3 | [YamlScalar] x | semmle.label | [YamlScalar] x |
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| merge.yaml:2:3:3:8 | [YamlMapping] x: 56 | semmle.label | [YamlMapping] x: 56 |
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| merge.yaml:2:6:2:7 | [YamlScalar] 56 | semmle.label | [YamlScalar] 56 |
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| merge.yaml:3:3:3:4 | [YamlScalar] << | semmle.label | [YamlScalar] << |
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| merge.yaml:3:7:3:8 | [YamlAliasNode] *A | semmle.label | [YamlAliasNode] *A |
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| tst.yml:1:1:14:23 | [YamlSequence] - "name ... Knopf" | semmle.label | [YamlSequence] - "name ... Knopf" |
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| tst.yml:1:1:14:23 | [YamlSequence] - "name ... Knopf" | semmle.order | 3 |
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| tst.yml:1:3:1:8 | [YamlScalar] "name" | semmle.label | [YamlScalar] "name" |
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| tst.yml:1:3:6:4 | [YamlMapping] "name": "Jim Knopf" | semmle.label | [YamlMapping] "name": "Jim Knopf" |
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| tst.yml:1:11:1:21 | [YamlScalar] "Jim Knopf" | semmle.label | [YamlScalar] "Jim Knopf" |
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| tst.yml:2:3:2:9 | [YamlScalar] address | semmle.label | [YamlScalar] address |
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| tst.yml:2:12:6:3 | [YamlMapping] { | semmle.label | [YamlMapping] { |
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| tst.yml:3:5:3:12 | [YamlScalar] "street" | semmle.label | [YamlScalar] "street" |
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| tst.yml:3:14:3:13 | [YamlScalar] | semmle.label | [YamlScalar] |
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| tst.yml:4:5:4:12 | [YamlScalar] "number" | semmle.label | [YamlScalar] "number" |
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| tst.yml:4:15:4:16 | [YamlScalar] -1 | semmle.label | [YamlScalar] -1 |
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| tst.yml:5:5:5:13 | [YamlScalar] "country" | semmle.label | [YamlScalar] "country" |
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| tst.yml:5:16:5:27 | [YamlScalar] "Lummerland" | semmle.label | [YamlScalar] "Lummerland" |
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| tst.yml:7:3:7:6 | [YamlScalar] name | semmle.label | [YamlScalar] name |
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| tst.yml:7:3:13:19 | [YamlMapping] name: Frau Mahlzahn | semmle.label | [YamlMapping] name: Frau Mahlzahn |
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| tst.yml:7:9:7:21 | [YamlScalar] Frau Mahlzahn | semmle.label | [YamlScalar] Frau Mahlzahn |
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| tst.yml:8:3:8:9 | [YamlScalar] address | semmle.label | [YamlScalar] address |
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| tst.yml:9:5:9:10 | [YamlScalar] street | semmle.label | [YamlScalar] street |
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| tst.yml:9:5:13:19 | [YamlMapping] street: \| | semmle.label | [YamlMapping] street: \| |
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| tst.yml:9:13:10:21 | [YamlScalar] \| | semmle.label | [YamlScalar] \| |
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| tst.yml:11:5:11:10 | [YamlScalar] number | semmle.label | [YamlScalar] number |
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| tst.yml:11:13:11:15 | [YamlScalar] 133 | semmle.label | [YamlScalar] 133 |
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| tst.yml:12:5:12:11 | [YamlScalar] country | semmle.label | [YamlScalar] country |
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| tst.yml:12:14:13:18 | [YamlScalar] < | semmle.label | [YamlScalar] < |
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| tst.yml:14:3:14:23 | [YamlScalar] !includ ... nal.yml | semmle.label | [YamlScalar] !includ ... nal.yml |
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edges
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| file://:0:0:0:0 | (Mapping 0) name: | tst.yml:1:3:1:8 | [YamlScalar] "name" | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 0) name: | tst.yml:1:3:1:8 | [YamlScalar] "name" | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 0) name: | tst.yml:1:11:1:21 | [YamlScalar] "Jim Knopf" | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 0) name: | tst.yml:1:11:1:21 | [YamlScalar] "Jim Knopf" | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 0) name: | tst.yml:7:3:7:6 | [YamlScalar] name | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 0) name: | tst.yml:7:3:7:6 | [YamlScalar] name | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 0) name: | tst.yml:7:9:7:21 | [YamlScalar] Frau Mahlzahn | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 0) name: | tst.yml:7:9:7:21 | [YamlScalar] Frau Mahlzahn | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 0) street: | tst.yml:3:5:3:12 | [YamlScalar] "street" | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 0) street: | tst.yml:3:5:3:12 | [YamlScalar] "street" | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 0) street: | tst.yml:3:14:3:13 | [YamlScalar] | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 0) street: | tst.yml:3:14:3:13 | [YamlScalar] | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 0) street: | tst.yml:9:5:9:10 | [YamlScalar] street | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 0) street: | tst.yml:9:5:9:10 | [YamlScalar] street | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 0) street: | tst.yml:9:13:10:21 | [YamlScalar] \| | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 0) street: | tst.yml:9:13:10:21 | [YamlScalar] \| | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 0) x: | merge.yaml:1:8:1:8 | [YamlScalar] x | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 0) x: | merge.yaml:1:8:1:8 | [YamlScalar] x | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 0) x: | merge.yaml:1:11:1:12 | [YamlScalar] 23 | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 0) x: | merge.yaml:1:11:1:12 | [YamlScalar] 23 | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 0) x: | merge.yaml:2:3:2:3 | [YamlScalar] x | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 0) x: | merge.yaml:2:3:2:3 | [YamlScalar] x | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 0) x: | merge.yaml:2:6:2:7 | [YamlScalar] 56 | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 0) x: | merge.yaml:2:6:2:7 | [YamlScalar] 56 | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 1) <<: | merge.yaml:3:3:3:4 | [YamlScalar] << | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 1) <<: | merge.yaml:3:3:3:4 | [YamlScalar] << | semmle.order | 0 |
82+
| file://:0:0:0:0 | (Mapping 1) <<: | merge.yaml:3:7:3:8 | [YamlAliasNode] *A | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 1) <<: | merge.yaml:3:7:3:8 | [YamlAliasNode] *A | semmle.order | 1 |
84+
| file://:0:0:0:0 | (Mapping 1) address: | tst.yml:2:3:2:9 | [YamlScalar] address | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 1) address: | tst.yml:2:3:2:9 | [YamlScalar] address | semmle.order | 0 |
86+
| file://:0:0:0:0 | (Mapping 1) address: | tst.yml:2:12:6:3 | [YamlMapping] { | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 1) address: | tst.yml:2:12:6:3 | [YamlMapping] { | semmle.order | 1 |
88+
| file://:0:0:0:0 | (Mapping 1) address: | tst.yml:8:3:8:9 | [YamlScalar] address | semmle.label | 0 |
89+
| file://:0:0:0:0 | (Mapping 1) address: | tst.yml:8:3:8:9 | [YamlScalar] address | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 1) address: | tst.yml:9:5:13:19 | [YamlMapping] street: \| | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 1) address: | tst.yml:9:5:13:19 | [YamlMapping] street: \| | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 1) number: | tst.yml:4:5:4:12 | [YamlScalar] "number" | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 1) number: | tst.yml:4:5:4:12 | [YamlScalar] "number" | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 1) number: | tst.yml:4:15:4:16 | [YamlScalar] -1 | semmle.label | 1 |
95+
| file://:0:0:0:0 | (Mapping 1) number: | tst.yml:4:15:4:16 | [YamlScalar] -1 | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 1) number: | tst.yml:11:5:11:10 | [YamlScalar] number | semmle.label | 0 |
97+
| file://:0:0:0:0 | (Mapping 1) number: | tst.yml:11:5:11:10 | [YamlScalar] number | semmle.order | 0 |
98+
| file://:0:0:0:0 | (Mapping 1) number: | tst.yml:11:13:11:15 | [YamlScalar] 133 | semmle.label | 1 |
99+
| file://:0:0:0:0 | (Mapping 1) number: | tst.yml:11:13:11:15 | [YamlScalar] 133 | semmle.order | 1 |
100+
| file://:0:0:0:0 | (Mapping 1) y: | merge.yaml:1:15:1:15 | [YamlScalar] y | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 1) y: | merge.yaml:1:15:1:15 | [YamlScalar] y | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 1) y: | merge.yaml:1:18:1:19 | [YamlScalar] 42 | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 1) y: | merge.yaml:1:18:1:19 | [YamlScalar] 42 | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 2) country: | tst.yml:5:5:5:13 | [YamlScalar] "country" | semmle.label | 0 |
105+
| file://:0:0:0:0 | (Mapping 2) country: | tst.yml:5:5:5:13 | [YamlScalar] "country" | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 2) country: | tst.yml:5:16:5:27 | [YamlScalar] "Lummerland" | semmle.label | 1 |
107+
| file://:0:0:0:0 | (Mapping 2) country: | tst.yml:5:16:5:27 | [YamlScalar] "Lummerland" | semmle.order | 1 |
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| file://:0:0:0:0 | (Mapping 2) country: | tst.yml:12:5:12:11 | [YamlScalar] country | semmle.label | 0 |
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| file://:0:0:0:0 | (Mapping 2) country: | tst.yml:12:5:12:11 | [YamlScalar] country | semmle.order | 0 |
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| file://:0:0:0:0 | (Mapping 2) country: | tst.yml:12:14:13:18 | [YamlScalar] < | semmle.label | 1 |
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| file://:0:0:0:0 | (Mapping 2) country: | tst.yml:12:14:13:18 | [YamlScalar] < | semmle.order | 1 |
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| merge.yaml:1:1:3:8 | [YamlSequence] - &A { ... y: 42 } | merge.yaml:1:3:1:21 | [YamlMapping] &A { x: 23, y: 42 } | semmle.label | 0 |
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| merge.yaml:1:1:3:8 | [YamlSequence] - &A { ... y: 42 } | merge.yaml:1:3:1:21 | [YamlMapping] &A { x: 23, y: 42 } | semmle.order | 0 |
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| merge.yaml:1:1:3:8 | [YamlSequence] - &A { ... y: 42 } | merge.yaml:2:3:3:8 | [YamlMapping] x: 56 | semmle.label | 1 |
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| merge.yaml:1:1:3:8 | [YamlSequence] - &A { ... y: 42 } | merge.yaml:2:3:3:8 | [YamlMapping] x: 56 | semmle.order | 1 |
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| merge.yaml:1:3:1:21 | [YamlMapping] &A { x: 23, y: 42 } | file://:0:0:0:0 | (Mapping 0) x: | semmle.label | 0 |
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| merge.yaml:1:3:1:21 | [YamlMapping] &A { x: 23, y: 42 } | file://:0:0:0:0 | (Mapping 0) x: | semmle.order | 0 |
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| merge.yaml:1:3:1:21 | [YamlMapping] &A { x: 23, y: 42 } | file://:0:0:0:0 | (Mapping 1) y: | semmle.label | 1 |
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| merge.yaml:1:3:1:21 | [YamlMapping] &A { x: 23, y: 42 } | file://:0:0:0:0 | (Mapping 1) y: | semmle.order | 1 |
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| merge.yaml:2:3:3:8 | [YamlMapping] x: 56 | file://:0:0:0:0 | (Mapping 0) x: | semmle.label | 0 |
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| merge.yaml:2:3:3:8 | [YamlMapping] x: 56 | file://:0:0:0:0 | (Mapping 0) x: | semmle.order | 0 |
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| merge.yaml:2:3:3:8 | [YamlMapping] x: 56 | file://:0:0:0:0 | (Mapping 1) <<: | semmle.label | 1 |
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| merge.yaml:2:3:3:8 | [YamlMapping] x: 56 | file://:0:0:0:0 | (Mapping 1) <<: | semmle.order | 1 |
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| tst.yml:1:1:14:23 | [YamlSequence] - "name ... Knopf" | tst.yml:1:3:6:4 | [YamlMapping] "name": "Jim Knopf" | semmle.label | 0 |
125+
| tst.yml:1:1:14:23 | [YamlSequence] - "name ... Knopf" | tst.yml:1:3:6:4 | [YamlMapping] "name": "Jim Knopf" | semmle.order | 0 |
126+
| tst.yml:1:1:14:23 | [YamlSequence] - "name ... Knopf" | tst.yml:7:3:13:19 | [YamlMapping] name: Frau Mahlzahn | semmle.label | 1 |
127+
| tst.yml:1:1:14:23 | [YamlSequence] - "name ... Knopf" | tst.yml:7:3:13:19 | [YamlMapping] name: Frau Mahlzahn | semmle.order | 1 |
128+
| tst.yml:1:1:14:23 | [YamlSequence] - "name ... Knopf" | tst.yml:14:3:14:23 | [YamlScalar] !includ ... nal.yml | semmle.label | 2 |
129+
| tst.yml:1:1:14:23 | [YamlSequence] - "name ... Knopf" | tst.yml:14:3:14:23 | [YamlScalar] !includ ... nal.yml | semmle.order | 2 |
130+
| tst.yml:1:3:6:4 | [YamlMapping] "name": "Jim Knopf" | file://:0:0:0:0 | (Mapping 0) name: | semmle.label | 0 |
131+
| tst.yml:1:3:6:4 | [YamlMapping] "name": "Jim Knopf" | file://:0:0:0:0 | (Mapping 0) name: | semmle.order | 0 |
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| tst.yml:1:3:6:4 | [YamlMapping] "name": "Jim Knopf" | file://:0:0:0:0 | (Mapping 1) address: | semmle.label | 1 |
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| tst.yml:1:3:6:4 | [YamlMapping] "name": "Jim Knopf" | file://:0:0:0:0 | (Mapping 1) address: | semmle.order | 1 |
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| tst.yml:2:12:6:3 | [YamlMapping] { | file://:0:0:0:0 | (Mapping 0) street: | semmle.label | 0 |
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| tst.yml:2:12:6:3 | [YamlMapping] { | file://:0:0:0:0 | (Mapping 0) street: | semmle.order | 0 |
136+
| tst.yml:2:12:6:3 | [YamlMapping] { | file://:0:0:0:0 | (Mapping 1) number: | semmle.label | 1 |
137+
| tst.yml:2:12:6:3 | [YamlMapping] { | file://:0:0:0:0 | (Mapping 1) number: | semmle.order | 1 |
138+
| tst.yml:2:12:6:3 | [YamlMapping] { | file://:0:0:0:0 | (Mapping 2) country: | semmle.label | 2 |
139+
| tst.yml:2:12:6:3 | [YamlMapping] { | file://:0:0:0:0 | (Mapping 2) country: | semmle.order | 2 |
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| tst.yml:7:3:13:19 | [YamlMapping] name: Frau Mahlzahn | file://:0:0:0:0 | (Mapping 0) name: | semmle.label | 0 |
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| tst.yml:7:3:13:19 | [YamlMapping] name: Frau Mahlzahn | file://:0:0:0:0 | (Mapping 0) name: | semmle.order | 0 |
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| tst.yml:7:3:13:19 | [YamlMapping] name: Frau Mahlzahn | file://:0:0:0:0 | (Mapping 1) address: | semmle.label | 1 |
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| tst.yml:7:3:13:19 | [YamlMapping] name: Frau Mahlzahn | file://:0:0:0:0 | (Mapping 1) address: | semmle.order | 1 |
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| tst.yml:9:5:13:19 | [YamlMapping] street: \| | file://:0:0:0:0 | (Mapping 0) street: | semmle.label | 0 |
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| tst.yml:9:5:13:19 | [YamlMapping] street: \| | file://:0:0:0:0 | (Mapping 0) street: | semmle.order | 0 |
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| tst.yml:9:5:13:19 | [YamlMapping] street: \| | file://:0:0:0:0 | (Mapping 1) number: | semmle.label | 1 |
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| tst.yml:9:5:13:19 | [YamlMapping] street: \| | file://:0:0:0:0 | (Mapping 1) number: | semmle.order | 1 |
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| tst.yml:9:5:13:19 | [YamlMapping] street: \| | file://:0:0:0:0 | (Mapping 2) country: | semmle.label | 2 |
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| tst.yml:9:5:13:19 | [YamlMapping] street: \| | file://:0:0:0:0 | (Mapping 2) country: | semmle.order | 2 |
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graphProperties
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| semmle.graphKind | tree |

‎python/ql/test/library-tests/Yaml/printAst.ql

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import semmle.python.PrintAst

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