1 files changed, 52 insertions, 0 deletions
diff --git a/node_modules/autoprefixer/lib/hacks/grid-end.js b/node_modules/autoprefixer/lib/hacks/grid-end.js
new file mode 100644
index 0000000..63f6a42
--- /dev/null
+++ b/node_modules/autoprefixer/lib/hacks/grid-end.js
@@ -0,0 +1,52 @@
+let Declaration = require('../declaration')
+let { isPureNumber } = require('../utils')
+
+class GridEnd extends Declaration {
+  /**
+   * Change repeating syntax for IE
+   */
+  insert(decl, prefix, prefixes, result) {
+    if (prefix !== '-ms-') return super.insert(decl, prefix, prefixes)
+
+    let clonedDecl = this.clone(decl)
+
+    let startProp = decl.prop.replace(/end$/, 'start')
+    let spanProp = prefix + decl.prop.replace(/end$/, 'span')
+
+    if (decl.parent.some(i => i.prop === spanProp)) {
+      return undefined
+    }
+
+    clonedDecl.prop = spanProp
+
+    if (decl.value.includes('span')) {
+      clonedDecl.value = decl.value.replace(/span\s/i, '')
+    } else {
+      let startDecl
+      decl.parent.walkDecls(startProp, d => {
+        startDecl = d
+      })
+      if (startDecl) {
+        if (isPureNumber(startDecl.value)) {
+          let value = Number(decl.value) - Number(startDecl.value) + ''
+          clonedDecl.value = value
+        } else {
+          return undefined
+        }
+      } else {
+        decl.warn(
+          result,
+          `Can not prefix ${decl.prop} (${startProp} is not found)`
+        )
+      }
+    }
+
+    decl.cloneBefore(clonedDecl)
+
+    return undefined
+  }
+}
+
+GridEnd.names = ['grid-row-end', 'grid-column-end']
+
+module.exports = GridEnd