From 76cb9c2a39d477a64824a985ade40507e3bbade1 Mon Sep 17 00:00:00 2001
From: Adam Mathes <adam@adammathes.com>
Date: Fri, 13 Feb 2026 21:34:48 -0800
Subject: feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

---
 .../cjs/syntax/node/common/feature-range.cjs       | 112 +++++++++++++++++++++
 .../css-tree/cjs/syntax/node/common/feature.cjs    |  76 ++++++++++++++
 2 files changed, 188 insertions(+)
 create mode 100644 vanilla/node_modules/css-tree/cjs/syntax/node/common/feature-range.cjs
 create mode 100644 vanilla/node_modules/css-tree/cjs/syntax/node/common/feature.cjs

(limited to 'vanilla/node_modules/css-tree/cjs/syntax/node/common')

diff --git a/vanilla/node_modules/css-tree/cjs/syntax/node/common/feature-range.cjs b/vanilla/node_modules/css-tree/cjs/syntax/node/common/feature-range.cjs
new file mode 100644
index 0000000..7589b56
--- /dev/null
+++ b/vanilla/node_modules/css-tree/cjs/syntax/node/common/feature-range.cjs
@@ -0,0 +1,112 @@
+'use strict';
+
+const types = require('../../../tokenizer/types.cjs');
+
+const LESSTHANSIGN = 60;    // <
+const EQUALSIGN = 61;       // =
+const GREATERTHANSIGN = 62; // >
+
+const structure = {
+    left: ['Identifier', 'Number', 'Dimension', 'Ratio'],
+    leftComparison: String,
+    middle: ['Identifier', 'Number', 'Dimension', 'Ratio'],
+    rightComparison: [String, null],
+    right: ['Identifier', 'Number', 'Dimension', 'Ratio', null]
+};
+
+function readTerm() {
+    this.skipSC();
+
+    switch (this.tokenType) {
+        case types.Number:
+            if (this.lookupNonWSType(1) === types.Delim) {
+                return this.Ratio();
+            } else {
+                return this.Number();
+            }
+
+        case types.Dimension:
+            return this.Dimension();
+
+        case types.Ident:
+            return this.Identifier();
+
+        default:
+            this.error('Number, dimension, ratio or identifier is expected');
+    }
+}
+
+function readComparison(expectColon) {
+    this.skipSC();
+
+    if (this.isDelim(LESSTHANSIGN) ||
+        this.isDelim(GREATERTHANSIGN)) {
+        const value = this.source[this.tokenStart];
+
+        this.next();
+
+        if (this.isDelim(EQUALSIGN)) {
+            this.next();
+            return value + '=';
+        }
+
+        return value;
+    }
+
+    if (this.isDelim(EQUALSIGN)) {
+        return '=';
+    }
+
+    this.error(`Expected ${expectColon ? '":", ' : ''}"<", ">", "=" or ")"`);
+}
+
+function createParse(type) {
+    return function parse() {
+        const start = this.tokenStart;
+
+        this.skipSC();
+        this.eat(types.LeftParenthesis);
+
+        const left = readTerm.call(this);
+        const leftComparison = readComparison.call(this, left.type === 'Identifier');
+        const middle = readTerm.call(this);
+        let rightComparison = null;
+        let right = null;
+
+        if (this.lookupNonWSType(0) !== types.RightParenthesis) {
+            rightComparison = readComparison.call(this);
+            right = readTerm.call(this);
+        }
+
+        this.skipSC();
+        this.eat(types.RightParenthesis);
+
+        return {
+            type,
+            loc: this.getLocation(start, this.tokenStart),
+            left,
+            leftComparison,
+            middle,
+            rightComparison,
+            right
+        };
+    };
+}
+
+function generate(node) {
+    this.token(types.LeftParenthesis, '(');
+    this.node(node.left);
+    this.tokenize(node.leftComparison);
+    this.node(node.middle);
+
+    if (node.right) {
+        this.tokenize(node.rightComparison);
+        this.node(node.right);
+    }
+
+    this.token(types.RightParenthesis, ')');
+}
+
+exports.createParse = createParse;
+exports.generate = generate;
+exports.structure = structure;
diff --git a/vanilla/node_modules/css-tree/cjs/syntax/node/common/feature.cjs b/vanilla/node_modules/css-tree/cjs/syntax/node/common/feature.cjs
new file mode 100644
index 0000000..fa5de4e
--- /dev/null
+++ b/vanilla/node_modules/css-tree/cjs/syntax/node/common/feature.cjs
@@ -0,0 +1,76 @@
+'use strict';
+
+const types = require('../../../tokenizer/types.cjs');
+
+const structure = {
+    name: String,
+    value: ['Identifier', 'Number', 'Dimension', 'Ratio', null]
+};
+
+function createParse(type) {
+    return function parse() {
+        const start = this.tokenStart;
+        let name;
+        let value = null;
+
+        this.eat(types.LeftParenthesis);
+        this.skipSC();
+
+        name = this.consume(types.Ident);
+        this.skipSC();
+
+        if (this.tokenType !== types.RightParenthesis) {
+            this.eat(types.Colon);
+            this.skipSC();
+
+            switch (this.tokenType) {
+                case types.Number:
+                    if (this.lookupNonWSType(1) === types.Delim) {
+                        value = this.Ratio();
+                    } else {
+                        value = this.Number();
+                    }
+
+                    break;
+
+                case types.Dimension:
+                    value = this.Dimension();
+                    break;
+
+                case types.Ident:
+                    value = this.Identifier();
+                    break;
+
+                default:
+                    this.error('Number, dimension, ratio or identifier is expected');
+            }
+
+            this.skipSC();
+        }
+
+        this.eat(types.RightParenthesis);
+
+        return {
+            type,
+            loc: this.getLocation(start, this.tokenStart),
+            name,
+            value
+        };
+    };
+}
+
+function generate(node) {
+    this.token(types.LeftParenthesis, '(');
+    this.token(types.Ident, node.name);
+
+    if (node.value !== null) {
+        this.token(types.Colon, ':');
+        this.node(node.value);
+    }
+
+    this.token(types.RightParenthesis, ')');
+}
+
+exports.createParse = createParse;
+exports.generate = generate;
+exports.structure = structure;
-- 
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