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Merge pull request #1688 from AleoHQ/abnf-trailing-commas

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[ABNF] Allow trailing commas everywhere.
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Collin Chin 2022-03-17 12:44:45 -07:00 committed by GitHub
commit e961f6e2f6
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2 changed files with 28 additions and 24 deletions
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26
docs/grammar/README.md
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@ -993,7 +993,7 @@ A tuple type consists of zero, two, or more component types.
<a name="tuple-type"></a>
```abnf
tuple-type = "(" [ type 1*( "," type ) ] ")"
tuple-type = "(" [ type 1*( "," type ) [ "," ] ] ")"
```
Go to: _[type](#user-content-type)_;
@ -1002,7 +1002,7 @@ Go to: _[type](#user-content-type)_;
An array type consists of an element type
and an indication of dimensions.
There is either a single dimension,
or a tuple of one or more dimensions.
or a tuple of two or more dimensions.
Each dimension is a numeral.
<a name="array-type"></a>
@ -1015,7 +1015,7 @@ Go to: _[array-dimensions](#user-content-array-dimensions), [type](#user-content
<a name="array-dimensions"></a>
```abnf
array-dimensions = numeral / "(" numeral *( "," numeral ) ")"
array-dimensions = numeral / "(" numeral 1*( "," numeral ) [ "," ] ")"
```
Go to: _[numeral](#user-content-numeral)_;
@ -1152,7 +1152,7 @@ Each consists of zero, two, or more component expressions.
<a name="tuple-construction"></a>
```abnf
tuple-construction = "(" [ expression 1*( "," expression ) ] ")"
tuple-construction = "(" [ expression 1*( "," expression ) [ "," ] ] ")"
```
Go to: _[expression](#user-content-expression)_;
@ -1178,6 +1178,7 @@ across one or more dimensions.
array-inline-construction = "["
array-inline-element
*( "," array-inline-element )
[ "," ]
"]"
```
@ -1279,7 +1280,7 @@ as static constants are associated to named types.
<a name="function-arguments"></a>
```abnf
function-arguments = "(" [ expression *( "," expression ) ] ")"
function-arguments = "(" [ expression *( "," expression ) [ "," ] ] ")"
```
Go to: _[expression](#user-content-expression)_;
@ -1502,7 +1503,7 @@ Go to: _[expression](#user-content-expression), [identifier-or-identifiers](#use
<a name="identifier-or-identifiers"></a>
```abnf
identifier-or-identifiers = identifier
/ "(" identifier 1*( "," identifier ) ")"
/ "(" identifier 1*( "," identifier ) [ "," ] ")"
```
Go to: _[identifier](#user-content-identifier)_;
@ -1605,7 +1606,7 @@ print-function = %s"error" / %s"log"
<a name="print-arguments"></a>
```abnf
print-arguments = "(" string-literal *( "," expression ) ")"
print-arguments = "(" string-literal *( "," expression ) [ "," ] ")"
```
Go to: _[string-literal](#user-content-string-literal)_;
@ -1625,7 +1626,7 @@ with optional annotation arguments, which are identifiers.
<a name="annotation"></a>
```abnf
annotation = annotation-name
[ "(" *( identifier "," ) [ identifier ] ")" ]
[ "(" [ identifier *( "," identifier ) [ "," ] ] ")" ]
```
Go to: _[annotation-name](#user-content-annotation-name), [identifier](#user-content-identifier)_;
@ -1650,7 +1651,7 @@ Go to: _[block](#user-content-block), [function-parameters](#user-content-functi
<a name="function-parameters"></a>
```abnf
function-parameters = self-parameter
function-parameters = self-parameter [ "," ]
/ self-parameter "," function-inputs
/ function-inputs
```
@ -1665,7 +1666,7 @@ self-parameter = [ %s"&" / %s"const" ] %s"self"
<a name="function-inputs"></a>
```abnf
function-inputs = function-input *( "," function-input )
function-inputs = function-input *( "," function-input ) [ "," ]
```
Go to: _[function-input](#user-content-function-input)_;
@ -1706,8 +1707,9 @@ see the rule `circuit-declaration`.
<a name="member-variable-declarations"></a>
```abnf
member-variable-declarations = *( identifier ":" type ( "," / ";" ) )
identifier ":" type ( [ "," ] / ";" )
member-variable-declarations = identifier ":" type
*( ( "," / ";" ) identifier ":" type )
[ "," / ";" ]
```
Go to: _[identifier](#user-content-identifier), [type](#user-content-type)_;

26
docs/grammar/abnf-grammar.txt
View File

@ -640,17 +640,17 @@ scalar-type = boolean-type / arithmetic-type / address-type / character-type
; A tuple type consists of zero, two, or more component types.
tuple-type = "(" [ type 1*( "," type ) ] ")"
tuple-type = "(" [ type 1*( "," type ) [ "," ] ] ")"
; An array type consists of an element type
; and an indication of dimensions.
; There is either a single dimension,
; or a tuple of one or more dimensions.
; or a tuple of two or more dimensions.
; Each dimension is a numeral.
array-type = "[" type ";" array-dimensions "]"
array-dimensions = numeral / "(" numeral *( "," numeral ) ")"
array-dimensions = numeral / "(" numeral 1*( "," numeral ) [ "," ] ")"
; The keyword `Self` denotes the enclosing circuit type.
; It is only allowed inside a circuit type declaration.
@ -730,7 +730,7 @@ primary-expression = identifier
; Tuple expressions construct tuples.
; Each consists of zero, two, or more component expressions.
tuple-construction = "(" [ expression 1*( "," expression ) ] ")"
tuple-construction = "(" [ expression 1*( "," expression ) [ "," ] ] ")"
tuple-expression = tuple-construction
@ -744,6 +744,7 @@ tuple-expression = tuple-construction
array-inline-construction = "["
array-inline-element
*( "," array-inline-element )
[ "," ]
"]"
array-inline-element = expression / "..." expression
@ -797,7 +798,7 @@ circuit-expression = circuit-construction
; They consist of a named type followed by the constant name,
; as static constants are associated to named types.
function-arguments = "(" [ expression *( "," expression ) ] ")"
function-arguments = "(" [ expression *( "," expression ) [ "," ] ] ")"
postfix-expression = primary-expression
/ postfix-expression "." numeral
@ -915,7 +916,7 @@ constant-declaration = %s"const" identifier-or-identifiers ":" type
"=" expression ";"
identifier-or-identifiers = identifier
/ "(" identifier 1*( "," identifier ) ")"
/ "(" identifier 1*( "," identifier ) [ "," ] ")"
; A conditional statement always starts with a condition and a block
; (which together form a branch).
@ -964,7 +965,7 @@ assert-call = %s"assert" "(" expression ")"
print-function = %s"error" / %s"log"
print-arguments = "(" string-literal *( "," expression ) ")"
print-arguments = "(" string-literal *( "," expression ) [ "," ] ")"
print-call = print-function print-arguments
@ -972,7 +973,7 @@ print-call = print-function print-arguments
; with optional annotation arguments, which are identifiers.
annotation = annotation-name
[ "(" *( identifier "," ) [ identifier ] ")" ]
[ "(" [ identifier *( "," identifier ) [ "," ] ] ")" ]
; A function declaration defines a function.
; The output type is optional, defaulting to the empty tuple type.
@ -985,13 +986,13 @@ function-declaration = *annotation [ %s"const" ] %s"function" identifier
"(" [ function-parameters ] ")" [ "->" type ]
block
function-parameters = self-parameter
function-parameters = self-parameter [ "," ]
/ self-parameter "," function-inputs
/ function-inputs
self-parameter = [ %s"&" / %s"const" ] %s"self"
function-inputs = function-input *( "," function-input )
function-inputs = function-input *( "," function-input ) [ "," ]
function-input = [ %s"const" ] identifier ":" type
@ -1014,8 +1015,9 @@ member-constant-declaration = %s"static" %s"const" identifier ":" type
; but instead one for a sequence of them;
; see the rule `circuit-declaration`.
member-variable-declarations = *( identifier ":" type ( "," / ";" ) )
identifier ":" type ( [ "," ] / ";" )
member-variable-declarations = identifier ":" type
*( ( "," / ";" ) identifier ":" type )
[ "," / ";" ]
; A circuit member function declaration consists of a function declaration.