From ce065731848f95a9f942812e4f831e5640a51cfb Mon Sep 17 00:00:00 2001
From: Miroslav Pokorny <miroslav.pokorny@gmail.com>
Date: Tue, 12 Aug 2025 15:59:30 +1000
Subject: [PATCH] SpreadsheetExpressionEvaluationContext.removeEnvironmentValue
 return-type SpreadsheetExpressionEvaluationContext

---
 .../BasicSpreadsheetExpressionEvaluationContext.java        | 6 ++++++
 ...calReferencesSpreadsheetExpressionEvaluationContext.java | 6 ++++++
 .../expression/SpreadsheetExpressionEvaluationContext.java  | 3 +++
 3 files changed, 15 insertions(+)

diff --git a/src/main/java/walkingkooka/spreadsheet/expression/BasicSpreadsheetExpressionEvaluationContext.java b/src/main/java/walkingkooka/spreadsheet/expression/BasicSpreadsheetExpressionEvaluationContext.java
index fffd0133ee..1f1899487f 100644
--- a/src/main/java/walkingkooka/spreadsheet/expression/BasicSpreadsheetExpressionEvaluationContext.java
+++ b/src/main/java/walkingkooka/spreadsheet/expression/BasicSpreadsheetExpressionEvaluationContext.java
@@ -152,6 +152,12 @@ public <T> SpreadsheetExpressionEvaluationContext setEnvironmentValue(final Envi
         return this;
     }
 
+    @Override
+    public SpreadsheetExpressionEvaluationContext removeEnvironmentValue(final EnvironmentValueName<?> name) {
+        this.providerContext.removeEnvironmentValue(name);
+        return this;
+    }
+
     // SpreadsheetExpressionEvaluationContext............................................................................
 
     @Override
diff --git a/src/main/java/walkingkooka/spreadsheet/expression/LocalReferencesSpreadsheetExpressionEvaluationContext.java b/src/main/java/walkingkooka/spreadsheet/expression/LocalReferencesSpreadsheetExpressionEvaluationContext.java
index b5b184d415..44cdf69ae6 100644
--- a/src/main/java/walkingkooka/spreadsheet/expression/LocalReferencesSpreadsheetExpressionEvaluationContext.java
+++ b/src/main/java/walkingkooka/spreadsheet/expression/LocalReferencesSpreadsheetExpressionEvaluationContext.java
@@ -374,6 +374,12 @@ public <T> SpreadsheetExpressionEvaluationContext setEnvironmentValue(final Envi
         return this;
     }
 
+    @Override
+    public SpreadsheetExpressionEvaluationContext removeEnvironmentValue(final EnvironmentValueName<?> name) {
+        this.context.removeEnvironmentValue(name);
+        return this;
+    }
+
     // Object...........................................................................................................
 
     @Override
diff --git a/src/main/java/walkingkooka/spreadsheet/expression/SpreadsheetExpressionEvaluationContext.java b/src/main/java/walkingkooka/spreadsheet/expression/SpreadsheetExpressionEvaluationContext.java
index bdb6b2f19e..c898e21ea9 100644
--- a/src/main/java/walkingkooka/spreadsheet/expression/SpreadsheetExpressionEvaluationContext.java
+++ b/src/main/java/walkingkooka/spreadsheet/expression/SpreadsheetExpressionEvaluationContext.java
@@ -217,6 +217,9 @@ default Optional<Object> formatValue() {
     @Override
     <T> SpreadsheetExpressionEvaluationContext setEnvironmentValue(final EnvironmentValueName<T> name,
                                                                    final T value);
+
+    SpreadsheetExpressionEvaluationContext removeEnvironmentValue(final EnvironmentValueName<?> name);
+
     // validation.......................................................................................................
 
     /**