feature: @putout/plugin-minify: convert-if-to-logical: ConditionalExp…

…ression inside IfStatement (coderaiser/minify#118)

packages/plugin-minify/lib/convert-if-to-logical/fixture/nested-fix.js

@@ -0,0 +1 @@
+a && (b ? log('a and b are truthy') : log('a is truthy, b is falsy'));

packages/plugin-minify/lib/convert-if-to-logical/fixture/nested.js

@@ -0,0 +1,2 @@
+if (a)
+    b ? log('a and b are truthy') : log('a is truthy, b is falsy');

packages/plugin-minify/lib/convert-if-to-logical/index.js

@@ -8,6 +8,7 @@ const {
     isYieldExpression,
     ConditionalExpression,
     UnaryExpression,
+    isConditionalExpression,
 } = types;
 
 const parseExpressions = ({body}) => body.map(getExpression).filter(Boolean);
@@ -55,6 +56,9 @@ export const match = () => ({
 
 export const replace = () => ({
     'if (__a) __b': ({__a, __b}) => {
+        if (isConditionalExpression(__b))
+            return '__a && (__b)';
+
         if (!isBlockStatement(__b))
             return '__a && __b';
 

packages/plugin-minify/lib/convert-if-to-logical/index.spec.js

@@ -37,3 +37,8 @@ test('plugin-minify: convert-if-to-logical: transform: yield', (t) => {
     t.transform('yield');
     t.end();
 });
+
+test('plugin-minify: convert-if-to-logical: transform: nested', (t) => {
+    t.transform('nested');
+    t.end();
+});

packages/plugin-minify/test/fixture/if-fix.js

@@ -1,3 +1,5 @@
 let a = 0;
 
 Math.random() > 0.5 ? a++ : a--;
+
+a && (b ? log('a and b are truthy') : log('a is truthy, b is falsy'));

packages/plugin-minify/test/fixture/if.js

@@ -5,3 +5,9 @@ if (Math.random() > 0.5)
 else
     a--;
 
+if (a)
+    if (b)
+        log('a and b are truthy');
+    else
+        log('a is truthy, b is falsy');
+