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-rw-r--r--dhall/src/syntax/text/dhall.abnf13
-rw-r--r--dhall/tests/parser/failure/unit/ListLitTwoCommas.txt6
-rw-r--r--dhall/tests/parser/failure/unit/ProjectionTwoCommas.txt6
-rw-r--r--dhall/tests/parser/failure/unit/RecordTwoCommas.txt6
-rw-r--r--dhall/tests/parser/failure/unit/UnionTypeTwoDelims.txt6
-rw-r--r--dhall/tests/parser/success/unit/ListLitEmptyCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/ListLitLeadingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/ListLitTrailingAndLeadingCommasB.txt1
-rw-r--r--dhall/tests/parser/success/unit/ListLitTrailingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/ProjectionLeadingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/ProjectionTrailingAndLeadingCommasB.txt1
-rw-r--r--dhall/tests/parser/success/unit/ProjectionTrailingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordLitEmptyLeadingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordLitEmptyTrailingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordLitLeadingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordLitTrailingAndLeadingCommasB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordLitTrailingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordTypeEmptyCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordTypeLeadingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordTypeTrailingAndLeadingCommasB.txt1
-rw-r--r--dhall/tests/parser/success/unit/RecordTypeTrailingCommaB.txt1
-rw-r--r--dhall/tests/parser/success/unit/UnionTypeEmptyDelimB.txt1
-rw-r--r--dhall/tests/parser/success/unit/UnionTypeLeadingDelimB.txt1
-rw-r--r--dhall/tests/parser/success/unit/UnionTypeTrailingAndLeadingDelimsB.txt1
-rw-r--r--dhall/tests/parser/success/unit/UnionTypeTrailingDelimB.txt1
25 files changed, 51 insertions, 6 deletions
diff --git a/dhall/src/syntax/text/dhall.abnf b/dhall/src/syntax/text/dhall.abnf
index 37ec43b..2d487f5 100644
--- a/dhall/src/syntax/text/dhall.abnf
+++ b/dhall/src/syntax/text/dhall.abnf
@@ -853,7 +853,8 @@ selector-expression = primitive-expression *(whsp "." whsp selector)
selector = any-label / labels / type-selector
-labels = "{" whsp [ any-label-or-some whsp *("," whsp any-label-or-some whsp) ] "}"
+labels =
+ "{" whsp [ "," whsp ] [ any-label-or-some whsp *("," whsp any-label-or-some whsp) [ "," whsp ] ] "}"
type-selector = "(" whsp expression whsp ")"
; NOTE: Backtrack when parsing the first three alternatives (i.e. the numeric
@@ -894,18 +895,18 @@ record-type-or-literal =
empty-record-literal
/ [non-empty-record-type-or-literal]
-empty-record-literal = "="
+empty-record-literal = "=" [ whsp "," ]
non-empty-record-type-or-literal =
(non-empty-record-type / non-empty-record-literal)
non-empty-record-type =
- record-type-entry *(whsp "," whsp record-type-entry)
+ record-type-entry *(whsp "," whsp record-type-entry) [ whsp "," ]
record-type-entry = any-label-or-some whsp ":" whsp1 expression
non-empty-record-literal =
- record-literal-entry *(whsp "," whsp record-literal-entry)
+ record-literal-entry *(whsp "," whsp record-literal-entry) [ whsp "," ]
; If the `record-literal-normal-entry` is absent, that represents a punned
; record entry, such as in `{ x }`, which is a short-hand for `{ x = x }`
@@ -918,7 +919,7 @@ record-literal-normal-entry =
; If the `union-type-entry` is absent, that represents an empty union
; alternative, such as in `< Heads | Tails >`
union-type =
- [union-type-entry *(whsp "|" whsp union-type-entry)]
+ [union-type-entry *(whsp "|" whsp union-type-entry) [ whsp "|" ]]
; x : Natural
; x
@@ -926,7 +927,7 @@ union-type-entry = any-label-or-some [ whsp ":" whsp1 expression ]
non-empty-list-literal =
- "[" whsp [ "," whsp ] expression whsp *("," whsp expression whsp) "]"
+ "[" whsp [ "," whsp ] expression whsp *("," whsp expression whsp) [ "," whsp ] "]"
; This just adds surrounding whitespace for the top-level of the program
complete-expression = whsp expression whsp
diff --git a/dhall/tests/parser/failure/unit/ListLitTwoCommas.txt b/dhall/tests/parser/failure/unit/ListLitTwoCommas.txt
new file mode 100644
index 0000000..1cdfed5
--- /dev/null
+++ b/dhall/tests/parser/failure/unit/ListLitTwoCommas.txt
@@ -0,0 +1,6 @@
+ --> 1:4
+ |
+1 | [ ,, ]␊
+ | ^---
+ |
+ = expected expression
diff --git a/dhall/tests/parser/failure/unit/ProjectionTwoCommas.txt b/dhall/tests/parser/failure/unit/ProjectionTwoCommas.txt
new file mode 100644
index 0000000..1585703
--- /dev/null
+++ b/dhall/tests/parser/failure/unit/ProjectionTwoCommas.txt
@@ -0,0 +1,6 @@
+ --> 1:8
+ |
+1 | foo.{ ,, }␊
+ | ^---
+ |
+ = expected any_label_or_some
diff --git a/dhall/tests/parser/failure/unit/RecordTwoCommas.txt b/dhall/tests/parser/failure/unit/RecordTwoCommas.txt
new file mode 100644
index 0000000..3828d4b
--- /dev/null
+++ b/dhall/tests/parser/failure/unit/RecordTwoCommas.txt
@@ -0,0 +1,6 @@
+ --> 1:4
+ |
+1 | { ,, }␊
+ | ^---
+ |
+ = expected any_label_or_some or empty_record_literal
diff --git a/dhall/tests/parser/failure/unit/UnionTypeTwoDelims.txt b/dhall/tests/parser/failure/unit/UnionTypeTwoDelims.txt
new file mode 100644
index 0000000..c4fa37e
--- /dev/null
+++ b/dhall/tests/parser/failure/unit/UnionTypeTwoDelims.txt
@@ -0,0 +1,6 @@
+ --> 1:4
+ |
+1 | < || >␊
+ | ^---
+ |
+ = expected any_label_or_some
diff --git a/dhall/tests/parser/success/unit/ListLitEmptyCommaB.txt b/dhall/tests/parser/success/unit/ListLitEmptyCommaB.txt
new file mode 100644
index 0000000..3b99552
--- /dev/null
+++ b/dhall/tests/parser/success/unit/ListLitEmptyCommaB.txt
@@ -0,0 +1 @@
+[] : List Bool
diff --git a/dhall/tests/parser/success/unit/ListLitLeadingCommaB.txt b/dhall/tests/parser/success/unit/ListLitLeadingCommaB.txt
new file mode 100644
index 0000000..5ed6f26
--- /dev/null
+++ b/dhall/tests/parser/success/unit/ListLitLeadingCommaB.txt
@@ -0,0 +1 @@
+[x, y]
diff --git a/dhall/tests/parser/success/unit/ListLitTrailingAndLeadingCommasB.txt b/dhall/tests/parser/success/unit/ListLitTrailingAndLeadingCommasB.txt
new file mode 100644
index 0000000..5ed6f26
--- /dev/null
+++ b/dhall/tests/parser/success/unit/ListLitTrailingAndLeadingCommasB.txt
@@ -0,0 +1 @@
+[x, y]
diff --git a/dhall/tests/parser/success/unit/ListLitTrailingCommaB.txt b/dhall/tests/parser/success/unit/ListLitTrailingCommaB.txt
new file mode 100644
index 0000000..5ed6f26
--- /dev/null
+++ b/dhall/tests/parser/success/unit/ListLitTrailingCommaB.txt
@@ -0,0 +1 @@
+[x, y]
diff --git a/dhall/tests/parser/success/unit/ProjectionLeadingCommaB.txt b/dhall/tests/parser/success/unit/ProjectionLeadingCommaB.txt
new file mode 100644
index 0000000..519da8c
--- /dev/null
+++ b/dhall/tests/parser/success/unit/ProjectionLeadingCommaB.txt
@@ -0,0 +1 @@
+foo.{ x, y }
diff --git a/dhall/tests/parser/success/unit/ProjectionTrailingAndLeadingCommasB.txt b/dhall/tests/parser/success/unit/ProjectionTrailingAndLeadingCommasB.txt
new file mode 100644
index 0000000..519da8c
--- /dev/null
+++ b/dhall/tests/parser/success/unit/ProjectionTrailingAndLeadingCommasB.txt
@@ -0,0 +1 @@
+foo.{ x, y }
diff --git a/dhall/tests/parser/success/unit/ProjectionTrailingCommaB.txt b/dhall/tests/parser/success/unit/ProjectionTrailingCommaB.txt
new file mode 100644
index 0000000..519da8c
--- /dev/null
+++ b/dhall/tests/parser/success/unit/ProjectionTrailingCommaB.txt
@@ -0,0 +1 @@
+foo.{ x, y }
diff --git a/dhall/tests/parser/success/unit/RecordLitEmptyLeadingCommaB.txt b/dhall/tests/parser/success/unit/RecordLitEmptyLeadingCommaB.txt
new file mode 100644
index 0000000..339130f
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordLitEmptyLeadingCommaB.txt
@@ -0,0 +1 @@
+{=}
diff --git a/dhall/tests/parser/success/unit/RecordLitEmptyTrailingCommaB.txt b/dhall/tests/parser/success/unit/RecordLitEmptyTrailingCommaB.txt
new file mode 100644
index 0000000..339130f
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordLitEmptyTrailingCommaB.txt
@@ -0,0 +1 @@
+{=}
diff --git a/dhall/tests/parser/success/unit/RecordLitLeadingCommaB.txt b/dhall/tests/parser/success/unit/RecordLitLeadingCommaB.txt
new file mode 100644
index 0000000..325db4f
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordLitLeadingCommaB.txt
@@ -0,0 +1 @@
+{ x = 0, y = 1 }
diff --git a/dhall/tests/parser/success/unit/RecordLitTrailingAndLeadingCommasB.txt b/dhall/tests/parser/success/unit/RecordLitTrailingAndLeadingCommasB.txt
new file mode 100644
index 0000000..325db4f
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordLitTrailingAndLeadingCommasB.txt
@@ -0,0 +1 @@
+{ x = 0, y = 1 }
diff --git a/dhall/tests/parser/success/unit/RecordLitTrailingCommaB.txt b/dhall/tests/parser/success/unit/RecordLitTrailingCommaB.txt
new file mode 100644
index 0000000..325db4f
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordLitTrailingCommaB.txt
@@ -0,0 +1 @@
+{ x = 0, y = 1 }
diff --git a/dhall/tests/parser/success/unit/RecordTypeEmptyCommaB.txt b/dhall/tests/parser/success/unit/RecordTypeEmptyCommaB.txt
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordTypeEmptyCommaB.txt
@@ -0,0 +1 @@
+{}
diff --git a/dhall/tests/parser/success/unit/RecordTypeLeadingCommaB.txt b/dhall/tests/parser/success/unit/RecordTypeLeadingCommaB.txt
new file mode 100644
index 0000000..b88d0ae
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordTypeLeadingCommaB.txt
@@ -0,0 +1 @@
+{ x : T, y : U }
diff --git a/dhall/tests/parser/success/unit/RecordTypeTrailingAndLeadingCommasB.txt b/dhall/tests/parser/success/unit/RecordTypeTrailingAndLeadingCommasB.txt
new file mode 100644
index 0000000..b88d0ae
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordTypeTrailingAndLeadingCommasB.txt
@@ -0,0 +1 @@
+{ x : T, y : U }
diff --git a/dhall/tests/parser/success/unit/RecordTypeTrailingCommaB.txt b/dhall/tests/parser/success/unit/RecordTypeTrailingCommaB.txt
new file mode 100644
index 0000000..b88d0ae
--- /dev/null
+++ b/dhall/tests/parser/success/unit/RecordTypeTrailingCommaB.txt
@@ -0,0 +1 @@
+{ x : T, y : U }
diff --git a/dhall/tests/parser/success/unit/UnionTypeEmptyDelimB.txt b/dhall/tests/parser/success/unit/UnionTypeEmptyDelimB.txt
new file mode 100644
index 0000000..c677118
--- /dev/null
+++ b/dhall/tests/parser/success/unit/UnionTypeEmptyDelimB.txt
@@ -0,0 +1 @@
+< >
diff --git a/dhall/tests/parser/success/unit/UnionTypeLeadingDelimB.txt b/dhall/tests/parser/success/unit/UnionTypeLeadingDelimB.txt
new file mode 100644
index 0000000..0f942c8
--- /dev/null
+++ b/dhall/tests/parser/success/unit/UnionTypeLeadingDelimB.txt
@@ -0,0 +1 @@
+< x: T | y: U >
diff --git a/dhall/tests/parser/success/unit/UnionTypeTrailingAndLeadingDelimsB.txt b/dhall/tests/parser/success/unit/UnionTypeTrailingAndLeadingDelimsB.txt
new file mode 100644
index 0000000..0f942c8
--- /dev/null
+++ b/dhall/tests/parser/success/unit/UnionTypeTrailingAndLeadingDelimsB.txt
@@ -0,0 +1 @@
+< x: T | y: U >
diff --git a/dhall/tests/parser/success/unit/UnionTypeTrailingDelimB.txt b/dhall/tests/parser/success/unit/UnionTypeTrailingDelimB.txt
new file mode 100644
index 0000000..0f942c8
--- /dev/null
+++ b/dhall/tests/parser/success/unit/UnionTypeTrailingDelimB.txt
@@ -0,0 +1 @@
+< x: T | y: U >