feat: add support for empty coalesce operator

Close GH-97 Ref: https://plugins.craftcms.com/empty-coalesce
zackad · Dec 3, 2024 · 39607a4 · 39607a4
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## unreleased
 
+### Features
+- Add support for [empty coalesce operator](https://plugins.craftcms.com/empty-coalesce), a CraftCMS extension
+
 ### Internals
 - Remove unused dependencies `resolve`
 

diff --git a/src/melody/melody-extension-core/operators.js b/src/melody/melody-extension-core/operators.js
@@ -290,6 +290,14 @@ export const BinaryNullCoalesceExpression = createBinaryOperatorNode({
     precedence: 300,
     associativity: LEFT
 });
+
+// Ref: https://plugins.craftcms.com/empty-coalesce
+export const BinaryEmptyCoalesceExpression = createBinaryOperatorNode({
+    text: "???",
+    type: "BinaryEmptyCoalesceExpression",
+    precedence: 300,
+    associativity: LEFT
+});
 //endregion
 
 //region Test Expressions

diff --git a/tests/Expressions/__snapshots__/operators.snap.twig b/tests/Expressions/__snapshots__/operators.snap.twig
@@ -28,6 +28,10 @@
 {{ a ?? b }}
 {{ a <=> b }}
 
+{# Empty coalesce operator, extension for CraftCMS #}
+{# Ref: https://plugins.craftcms.com/empty-coalesce #}
+{{ a ??? b }}
+
 {{ a is divisible by(b) }}
 {{ a is not divisible by(b) }}
 {{ a is defined }}

diff --git a/tests/Expressions/operators.twig b/tests/Expressions/operators.twig
@@ -28,6 +28,10 @@
 {{ a ?? b }}
 {{ a <=> b }}
 
+{# Empty coalesce operator, extension for CraftCMS #}
+{# Ref: https://plugins.craftcms.com/empty-coalesce #}
+{{ a ??? b }}
+
 {{ a is divisible by(b) }}
 {{ a is not divisible by(b) }}
 {{ a is defined }}