Small tweaks to "Local variable declarations" (#1208)

* improved text and rule names * change section heading * fix grammar edit error * Update standard/statements.md Co-authored-by: Nigel-Ecma <[email protected]> * Update standard/statements.md Co-authored-by: Nigel-Ecma <[email protected]> * Update standard/statements.md Co-authored-by: Kalle Olavi Niemitalo <[email protected]> --------- Co-authored-by: Nigel-Ecma <[email protected]> Co-authored-by: Kalle Olavi Niemitalo <[email protected]>
dotnet · Nov 17, 2024 · 000309e · 000309e
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diff --git a/standard/README.md b/standard/README.md
@@ -453,7 +453,7 @@
       - [§13.6.2.1](statements.md#13621-general)  General
       - [§13.6.2.2](statements.md#13622-implicitly-typed-local-variable-declarations)  Implicitly typed local variable declarations
       - [§13.6.2.3](statements.md#13623-explicitly-typed-local-variable-declarations)  Explicitly typed local variable declarations
-      - [§13.6.2.4](statements.md#13624-ref-local-variable-declarations)  Ref local variable declarations
+      - [§13.6.2.4](statements.md#13624-explicitly-typed-ref-local-variable-declarations)  Explicitly typed ref local variable declarations
     - [§13.6.3](statements.md#1363-local-constant-declarations)  Local constant declarations
     - [§13.6.4](statements.md#1364-local-function-declarations)  Local function declarations
   - [§13.7](statements.md#137-expression-statements)  Expression statements

diff --git a/standard/statements.md b/standard/statements.md
@@ -302,12 +302,10 @@ A *local_variable_declaration* declares one or more local variables.
 local_variable_declaration
     : implicitly_typed_local_variable_declaration
     | explicitly_typed_local_variable_declaration
-    | ref_local_variable_declaration
+    | explicitly_typed_ref_local_variable_declaration
     ;
 ```
 
-Local variable declarations fall into one of the three categories: implicitly typed, explicitly typed, and ref local.
-
 Implicitly typed declarations contain the contextual keyword ([§6.4.4](lexical-structure.md#644-keywords)) `var` resulting in a syntactic ambiguity between the three categories which is resolved as follows:
 
 - If there is no type named `var` in scope and the input matches *implicitly_typed_local_variable_declaration* then it is chosen;
@@ -366,7 +364,7 @@ implicitly_typed_local_variable_declarator
     ;
 ```
 
-An *implicity_typed_local_variable_declaration* introduces a single local variable, *identifier*. The *expression* or *variable_reference* shall have a compile-time type, `T`. The first alternative declares a variable with an initial value of *expression*; its type is `T?` when `T` is a non-nullable reference type, otherwise its type is `T`. The second alternative declares a ref variable with an initial value of `ref` *variable_reference*; its type is `ref T?` when `T` is a non-nullable reference type, otherwise its type is `ref T`.
+An *implicitly_typed_local_variable_declaration* introduces a single local variable, *identifier*. The *expression* or *variable_reference* shall have a compile-time type, `T`. The first alternative declares a variable with an initial value of *expression*; its type is `T?` when `T` is a non-nullable reference type, otherwise its type is `T`. The second alternative declares a ref variable with an initial value of `ref` *variable_reference*; its type is `ref T?` when `T` is a non-nullable reference type, otherwise its type is `ref T`. (*ref_kind* is described in [§15.6.1](classes.md#1561-general).)
 
 > *Example*:
 >
@@ -433,10 +431,10 @@ An *explicity_typed_local_variable_declaration* introduces one or more local var
 
 If a *local_variable_initializer* is present then its type shall be appropriate according to the rules of simple assignment ([§12.21.2](expressions.md#12212-simple-assignment)) or array initialization ([§17.7](arrays.md#177-array-initializers)) and its value is assigned as the initial value of the variable.
 
-#### 13.6.2.4 Ref local variable declarations
+#### 13.6.2.4 Explicitly typed ref local variable declarations
 
 ```ANTLR
-ref_local_variable_declaration
+explicitly_typed_ref_local_variable_declaration
     : ref_kind type ref_local_variable_declarators
     ;