From 545bffb5895c3e021cbdc0a603f4a76fca111b50 Mon Sep 17 00:00:00 2001
From: ark120202 <ark120202@gmail.com>
Date: Sat, 2 Mar 2019 20:19:21 +0500
Subject: [PATCH 1/2] Fix call expression transform with undefined signature

---
 src/LuaTransformer.ts | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/LuaTransformer.ts b/src/LuaTransformer.ts
index e83f98f7b..d73fe0ce6 100644
--- a/src/LuaTransformer.ts
+++ b/src/LuaTransformer.ts
@@ -3100,10 +3100,10 @@ export class LuaTransformer {
         }
 
         const callPath = this.transformExpression(node.expression);
-        const signatureDeclaration = signature.getDeclaration();
-        if (signatureDeclaration
+        if (signature
+            && signature.getDeclaration()
             && !ts.isPropertyAccessExpression(node.expression)
-            && tsHelper.getDeclarationContextType(signatureDeclaration, this.checker) === ContextType.NonVoid
+            && tsHelper.getDeclarationContextType(signature.getDeclaration(), this.checker) === ContextType.NonVoid
             && !ts.isElementAccessExpression(node.expression))
         {
             const context = this.isStrict ? ts.createNull() : ts.createIdentifier("_G");
@@ -3201,10 +3201,10 @@ export class LuaTransformer {
             } else {
                 const parameters = this.transformArguments(node.arguments, signature);
                 const table = this.transformExpression(node.expression.expression);
-                const signatureDeclaration = signature.getDeclaration();
-                if (!signatureDeclaration
-                    || tsHelper.getDeclarationContextType(signatureDeclaration, this.checker) !== ContextType.Void)
-                {
+                if (!signature
+                    || !signature.getDeclaration()
+                    || tsHelper.getDeclarationContextType(signature.getDeclaration(), this.checker) !== ContextType.Void
+                ) {
                     // table:name()
                     return tstl.createMethodCallExpression(
                         table,
@@ -3229,9 +3229,9 @@ export class LuaTransformer {
         const signature = this.checker.getResolvedSignature(node);
         let parameters = this.transformArguments(node.arguments, signature);
 
-        const signatureDeclaration = signature.getDeclaration();
-        if (!signatureDeclaration
-            || tsHelper.getDeclarationContextType(signatureDeclaration, this.checker) !== ContextType.Void) {
+        if (!signature
+            || !signature.getDeclaration()
+            || tsHelper.getDeclarationContextType(signature.getDeclaration(), this.checker) !== ContextType.Void) {
             // Pass left-side as context
 
             const context = this.transformExpression(node.expression.expression);

From 57bcef0276a678eadae812be93e95c6b204924aa Mon Sep 17 00:00:00 2001
From: ark120202 <ark120202@gmail.com>
Date: Sat, 2 Mar 2019 20:46:09 +0500
Subject: [PATCH 2/2] Use variable for signatureDeclaration

---
 src/LuaTransformer.ts | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/LuaTransformer.ts b/src/LuaTransformer.ts
index d73fe0ce6..f0c946812 100644
--- a/src/LuaTransformer.ts
+++ b/src/LuaTransformer.ts
@@ -3100,10 +3100,10 @@ export class LuaTransformer {
         }
 
         const callPath = this.transformExpression(node.expression);
-        if (signature
-            && signature.getDeclaration()
+        const signatureDeclaration = signature && signature.getDeclaration();
+        if (signatureDeclaration
             && !ts.isPropertyAccessExpression(node.expression)
-            && tsHelper.getDeclarationContextType(signature.getDeclaration(), this.checker) === ContextType.NonVoid
+            && tsHelper.getDeclarationContextType(signatureDeclaration, this.checker) === ContextType.NonVoid
             && !ts.isElementAccessExpression(node.expression))
         {
             const context = this.isStrict ? ts.createNull() : ts.createIdentifier("_G");
@@ -3201,10 +3201,10 @@ export class LuaTransformer {
             } else {
                 const parameters = this.transformArguments(node.arguments, signature);
                 const table = this.transformExpression(node.expression.expression);
-                if (!signature
-                    || !signature.getDeclaration()
-                    || tsHelper.getDeclarationContextType(signature.getDeclaration(), this.checker) !== ContextType.Void
-                ) {
+                const signatureDeclaration = signature && signature.getDeclaration();
+                if (!signatureDeclaration
+                    || tsHelper.getDeclarationContextType(signatureDeclaration, this.checker) !== ContextType.Void)
+                {
                     // table:name()
                     return tstl.createMethodCallExpression(
                         table,
@@ -3229,9 +3229,9 @@ export class LuaTransformer {
         const signature = this.checker.getResolvedSignature(node);
         let parameters = this.transformArguments(node.arguments, signature);
 
-        if (!signature
-            || !signature.getDeclaration()
-            || tsHelper.getDeclarationContextType(signature.getDeclaration(), this.checker) !== ContextType.Void) {
+        const signatureDeclaration = signature && signature.getDeclaration();
+        if (!signatureDeclaration
+            || tsHelper.getDeclarationContextType(signatureDeclaration, this.checker) !== ContextType.Void) {
             // Pass left-side as context
 
             const context = this.transformExpression(node.expression.expression);