Fix some type issues and test all specs

Author: theodorejb

grammar/handlebars.y

@@ -314,8 +314,8 @@ helperName:
   | STRING { $$ = new StringLiteral($1, $1, locInfo()); }
   | NUMBER { $$ = new NumberLiteral($1 + 0, $1 + 0, locInfo()); }
   | BOOLEAN { $$ = new BooleanLiteral($1 === 'true', $1 === 'true', locInfo()); }
-  | UNDEFINED { $$ = new UndefinedLiteral(locInfo()); }
-  | NULL { $$ = new NullLiteral(locInfo()); }
+  | UNDEFINED { $$ = new UndefinedLiteral(null, null, locInfo()); }
+  | NULL { $$ = new NullLiteral(null, null, locInfo()); }
 ;
 
 dataName:

src/Ast/ArrayLiteral.php

@@ -2,7 +2,7 @@
 
 namespace DevTheorem\HandlebarsParser\Ast;
 
-class ArrayLiteral extends Literal
+class ArrayLiteral extends Expression
 {
     /**
      * @param Expression[] $items

src/Ast/BlockStatement.php

@@ -9,7 +9,7 @@ class BlockStatement extends Statement
      */
     public function __construct(
         string $type,
-        public PathExpression $path,
+        public PathExpression|Literal $path,
         public array $params,
         public ?Hash $hash,
         public ?Program $program,

src/Ast/BooleanLiteral.php

@@ -6,9 +6,9 @@ class BooleanLiteral extends Literal
 {
     public function __construct(
         public bool $value,
-        public bool $original,
+        bool $original,
         SourceLocation $loc,
     ) {
-        parent::__construct('BooleanLiteral', $loc);
+        parent::__construct($original, 'BooleanLiteral', $loc);
     }
 }

src/Ast/CloseBlock.php

@@ -5,7 +5,7 @@
 readonly class CloseBlock
 {
     public function __construct(
-        public PathExpression $path,
+        public PathExpression|Literal $path,
         public StripFlags $strip,
     ) {}
 }

src/Ast/HashLiteral.php

@@ -2,7 +2,7 @@
 
 namespace DevTheorem\HandlebarsParser\Ast;
 
-class HashLiteral extends Literal
+class HashLiteral extends Expression
 {
     /**
      * @param HashPair[] $pairs

src/Ast/Literal.php

@@ -2,4 +2,13 @@
 
 namespace DevTheorem\HandlebarsParser\Ast;
 
-abstract class Literal extends Expression {}
+abstract class Literal extends Expression
+{
+    public function __construct(
+        public string|int|float|bool|null $original,
+        string $type,
+        SourceLocation $loc,
+    ) {
+        parent::__construct($type, $loc);
+    }
+}

src/Ast/NullLiteral.php

@@ -4,8 +4,11 @@
 
 class NullLiteral extends Literal
 {
-    public function __construct(SourceLocation $loc)
-    {
-        parent::__construct('NullLiteral', $loc);
+    public function __construct(
+        public null $value,
+        null $original,
+        SourceLocation $loc,
+    ) {
+        parent::__construct($original, 'NullLiteral', $loc);
     }
 }

src/Ast/NumberLiteral.php

@@ -6,9 +6,9 @@ class NumberLiteral extends Literal
 {
     public function __construct(
         public int|float $value,
-        public int|float $original,
+        int|float $original,
         SourceLocation $loc,
     ) {
-        parent::__construct('NumberLiteral', $loc);
+        parent::__construct($original, 'NumberLiteral', $loc);
     }
 }

src/Ast/OpenBlock.php

@@ -10,7 +10,7 @@
      */
     public function __construct(
         public string $open,
-        PathExpression $path,
+        PathExpression|Literal $path,
         array $params,
         ?Hash $hash,
         public array $blockParams,