Create validateClose helper method

Avoid duplicating the logic needed to check for close block mismatches.

lib/handlebars/compiler/helpers.js

@@ -1,5 +1,15 @@
 import Exception from '../exception';
 
+function validateClose(open, close) {
+  close = close.path ? close.path.original : close;
+
+  if (open.path.original !== close) {
+    let errorNode = {loc: open.path.loc};
+
+    throw new Exception(open.path.original + " doesn't match " + close, errorNode);
+  }
+}
+
 export function SourceLocation(source, locInfo) {
   this.source = source;
   this.start = {
@@ -71,11 +81,7 @@ export function prepareMustache(path, params, hash, open, strip, locInfo) {
 }
 
 export function prepareRawBlock(openRawBlock, contents, close, locInfo) {
-  if (openRawBlock.path.original !== close) {
-    let errorNode = {loc: openRawBlock.path.loc};
-
-    throw new Exception(openRawBlock.path.original + " doesn't match " + close, errorNode);
-  }
+  validateClose(openRawBlock, close);
 
   locInfo = this.locInfo(locInfo);
   let program = new this.Program(contents, null, {}, locInfo);
@@ -88,11 +94,8 @@ export function prepareRawBlock(openRawBlock, contents, close, locInfo) {
 }
 
 export function prepareBlock(openBlock, program, inverseAndProgram, close, inverted, locInfo) {
-  // When we are chaining inverse calls, we will not have a close path
-  if (close && close.path && openBlock.path.original !== close.path.original) {
-    let errorNode = {loc: openBlock.path.loc};
-
-    throw new Exception(openBlock.path.original + ' doesn\'t match ' + close.path.original, errorNode);
+  if (close && close.path) {
+    validateClose(openBlock, close);
   }
 
   program.blockParams = openBlock.blockParams;
@@ -147,17 +150,13 @@ export function prepareProgram(statements, loc) {
 }
 
 
-export function preparePartialBlock(openPartialBlock, program, close, locInfo) {
-  if (openPartialBlock.name.original !== close.path.original) {
-    let errorNode = {loc: openPartialBlock.name.loc};
-
-    throw new Exception(openPartialBlock.name.original + " doesn't match " + close.path.original, errorNode);
-  }
+export function preparePartialBlock(open, program, close, locInfo) {
+  validateClose(open, close);
 
   return new this.PartialBlockStatement(
-      openPartialBlock.name, openPartialBlock.params, openPartialBlock.hash,
+      open.path, open.params, open.hash,
       program,
-      openPartialBlock.strip, close && close.strip,
+      open.strip, close && close.strip,
       this.locInfo(locInfo));
 }
 

src/handlebars.yy

@@ -84,7 +84,7 @@ partialBlock
   : openPartialBlock program closeBlock -> yy.preparePartialBlock($1, $2, $3, @$)
   ;
 openPartialBlock
-  : OPEN_PARTIAL_BLOCK partialName param* hash? CLOSE -> { name: $2, params: $3, hash: $4, strip: yy.stripFlags($1, $5) }
+  : OPEN_PARTIAL_BLOCK partialName param* hash? CLOSE -> { path: $2, params: $3, hash: $4, strip: yy.stripFlags($1, $5) }
   ;
 
 param