From 5b396ac713233abb68f10277c65a5bd7bd06f600 Mon Sep 17 00:00:00 2001
From: Chase Coalwell <782571+srchase@users.noreply.github.com>
Date: Mon, 8 May 2023 09:47:40 -0600
Subject: [PATCH] Remove UnaryFunctionCall class

---
 .../codegen/validation/UnaryFunctionCall.java | 61 -------------------
 .../validation/UnaryFunctionCallTest.java     | 36 -----------
 2 files changed, 97 deletions(-)
 delete mode 100644 smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/validation/UnaryFunctionCall.java
 delete mode 100644 smithy-typescript-codegen/src/test/java/software/amazon/smithy/typescript/codegen/validation/UnaryFunctionCallTest.java

diff --git a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/validation/UnaryFunctionCall.java b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/validation/UnaryFunctionCall.java
deleted file mode 100644
index 47e55f79982..00000000000
--- a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/validation/UnaryFunctionCall.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package software.amazon.smithy.typescript.codegen.validation;
-
-/**
- * For handling expressions that may be unary function calls.
- */
-public abstract class UnaryFunctionCall {
-    /**
-     * @param expression - to be examined.
-     * @return whether the expression is a single-depth function call with a single parameter.
-     */
-    public static boolean check(String expression) {
-        if (expression.equals("_")) {
-            // not a call per se, but this indicates a pass-through function.
-            return true;
-        }
-        return maxCallDepth(expression) == 1
-            && expression.matches(".+\\(.*\\)$")
-            && !expression.contains("new ")
-            && !expression.contains(",");
-    }
-
-    /**
-     * @param callExpression - the call expression to be converted. Check that
-     *                         the expression is a unary call first.
-     * @return the unary function call converted to a function reference.
-     */
-    public static String toRef(String callExpression) {
-        return callExpression.replaceAll("(.*)\\(.*\\)$", "$1");
-    }
-
-    /**
-     * Estimates the call depth of a function call expression.
-     *
-     * @example
-     * call() == 1
-     * call(call()) == 2
-     */
-    private static int maxCallDepth(String expression) {
-        int depth = 0;
-        int maxDepth = 0;
-        for (int i = 0; i < expression.length(); ++i) {
-            char c = expression.charAt(i);
-            if (c == '(') {
-                depth += 1;
-                if (depth > maxDepth) {
-                    maxDepth = depth;
-                }
-                continue;
-            }
-            if (c == ')') {
-                depth -= 1;
-            }
-        }
-        return maxDepth;
-    }
-}
diff --git a/smithy-typescript-codegen/src/test/java/software/amazon/smithy/typescript/codegen/validation/UnaryFunctionCallTest.java b/smithy-typescript-codegen/src/test/java/software/amazon/smithy/typescript/codegen/validation/UnaryFunctionCallTest.java
deleted file mode 100644
index 61d510e9ef4..00000000000
--- a/smithy-typescript-codegen/src/test/java/software/amazon/smithy/typescript/codegen/validation/UnaryFunctionCallTest.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package software.amazon.smithy.typescript.codegen.validation;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-
-import org.junit.jupiter.api.Test;
-
-class UnaryFunctionCallTest {
-    @Test
-    void check() {
-        assertEquals(false, UnaryFunctionCall.check(""));
-        assertEquals(false, UnaryFunctionCall.check("5"));
-        assertEquals(false, UnaryFunctionCall.check("(param)"));
-        assertEquals(false, UnaryFunctionCall.check("x[5]"));
-        assertEquals(false, UnaryFunctionCall.check("new Date(timestamp)"));
-        assertEquals(false, UnaryFunctionCall.check("x(y(_))"));
-        assertEquals(false, UnaryFunctionCall.check("call(param).prop"));
-        assertEquals(false, UnaryFunctionCall.check("call(param, param2)"));
-
-        assertEquals(true, UnaryFunctionCall.check("_"));
-        assertEquals(true, UnaryFunctionCall.check("x()"));
-        assertEquals(true, UnaryFunctionCall.check("x(_)"));
-        assertEquals(true, UnaryFunctionCall.check("long_function_name(long_parameter_name)"));
-        assertEquals(true, UnaryFunctionCall.check("container.function(param)"));
-        assertEquals(true, UnaryFunctionCall.check("factory(param)(param2)"));
-    }
-
-    @Test
-    void toRef() {
-        assertEquals("_", UnaryFunctionCall.toRef("_"));
-        assertEquals("x", UnaryFunctionCall.toRef("x()"));
-        assertEquals("x", UnaryFunctionCall.toRef("x(_)"));
-        assertEquals("long_function_name", UnaryFunctionCall.toRef("long_function_name(long_parameter_name)"));
-        assertEquals("container.function", UnaryFunctionCall.toRef("container.function(param)"));
-        assertEquals("factory(param)", UnaryFunctionCall.toRef("factory(param)(param2)"));
-    }
-}
\ No newline at end of file