enforce decodeStack receives a stack array

src/templates/multisig/input.js

@@ -53,6 +53,7 @@ function encode (signatures, scriptPubKey) {
 }
 
 function decodeStack (stack, allowIncomplete) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack, allowIncomplete)
   return stack.slice(1)
 }

src/templates/pubkey/input.js

@@ -21,6 +21,7 @@ function encode (signature) {
 }
 
 function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack)
   return stack[0]
 }

src/templates/pubkeyhash/input.js

@@ -29,6 +29,7 @@ function encode (signature, pubKey) {
 }
 
 function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack)
 
   return {

src/templates/scripthash/input.js

@@ -59,6 +59,7 @@ function encode (redeemScriptSig, redeemScript) {
 }
 
 function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack)
 
   return {

src/templates/witnesspubkeyhash/input.js

@@ -29,6 +29,7 @@ function encodeStack (signature, pubKey) {
 }
 
 function decodeStack (stack) {
+  typeforce(typeforce.Array, stack)
   typeforce(check, stack)
 
   return {

src/templates/witnessscripthash/input.js

@@ -48,11 +48,12 @@ function encodeStack (witnessData, witnessScript) {
   return [].concat(witnessData, witnessScript)
 }
 
-function decodeStack (chunks) {
+function decodeStack (stack) {
-  typeforce(check, chunks)
+  typeforce(typeforce.Array, stack)
+  typeforce(check, stack)
   return {
-    witnessData: chunks.slice(0, -1),
+    witnessData: stack.slice(0, -1),
-    witnessScript: chunks[chunks.length - 1]
+    witnessScript: stack[stack.length - 1]
   }
 }