From 2ea5528cd03158c19afaffa7cc2ef347f627adeb Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Mon, 27 Jul 2020 19:51:54 +0100
Subject: [PATCH] Start compiling identifiers.

We'll need this if we support the "L == foobar" syntax, and besides
it should really be up to the parser client whether or not they use
identifiers with no function call or property reference.

It also allows us to generate error messages for unknown identifers.
---
 common/libeval_compiler/libeval_compiler.cpp | 23 ++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/common/libeval_compiler/libeval_compiler.cpp b/common/libeval_compiler/libeval_compiler.cpp
index 51eaed6ede..aa71a09771 100644
--- a/common/libeval_compiler/libeval_compiler.cpp
+++ b/common/libeval_compiler/libeval_compiler.cpp
@@ -748,6 +748,29 @@ bool COMPILER::generateUCode( UCODE* aCode, CONTEXT* aPreflightContext )
             break;
         }
 
+        case TR_IDENTIFIER:
+        {
+            VAR_REF* vref = aCode->createVarRef( this, node->value.str, "" );
+
+            if( m_errorStatus.pendingError )
+            {
+                m_errorStatus.pendingError = true;
+                m_errorStatus.stage = ERROR_STATUS::CST_CODEGEN;
+
+                if( m_errorStatus.message == "var" )
+                {
+                    m_errorStatus.message.Printf( _( "Unrecognized item '%s'" ),
+                                                  node->value.str );
+                    m_errorStatus.srcPos = node->srcPos - strlen( node->value.str );
+                }
+
+                return false;
+            }
+
+            node->uop = makeUop( TR_UOP_PUSH_VALUE, vref );
+            break;
+        }
+
         default:
             node->uop = makeUop( node->op );
             break;