Not session.fail but session.fatal

lib/compiler/passes/generate-js.js

@@ -584,7 +584,7 @@ function generateJS( ast, session, options ) {
         function s( i ) {
 
             // istanbul ignore next
-            if ( i < 0 ) session.fail( "Rule '" + rule.name + "': Var stack underflow: attempt to use var at index " + i );
+            if ( i < 0 ) session.fatal( "Rule '" + rule.name + "': Var stack underflow: attempt to use var at index " + i );
 
             return "s" + i;
 
@@ -663,7 +663,7 @@ function generateJS( ast, session, options ) {
                     // istanbul ignore if
                     if ( thenSp !== elseSp ) {
 
-                        session.fail(
+                        session.fatal(
                             "Rule '" + rule.name + "', position " + pos + ": "
                             + "Branches of a condition can't move the stack pointer differently "
                             + "(before: " + baseSp + ", after then: " + thenSp + ", after else: " + elseSp + ")."
@@ -701,7 +701,7 @@ function generateJS( ast, session, options ) {
                 // istanbul ignore if
                 if ( bodySp !== baseSp ) {
 
-                    session.fail(
+                    session.fatal(
                         "Rule '" + rule.name + "', position " + pos + ": "
                         + "Body of a loop can't move the stack pointer "
                         + "(before: " + baseSp + ", after: " + bodySp + ")."
@@ -927,7 +927,7 @@ function generateJS( ast, session, options ) {
 
                     // istanbul ignore next
                     default:
-                        session.fail(
+                        session.fatal(
                             "Rule '" + rule.name + "', position " + ip + ": "
                             + "Invalid opcode " + bc[ ip ] + "."
                         );