From 068916b59a847bede7c6c788e803442c1833fe67 Mon Sep 17 00:00:00 2001
From: Gaming4JC <g4jc@hyperbola.info>
Date: Sat, 8 Jun 2019 15:40:56 -0400
Subject: 1326454 - Introduce TokenStream::warning that warns at the current
 offset.

---
 js/src/frontend/TokenStream.cpp | 16 +++++++++-------
 js/src/frontend/TokenStream.h   |  8 +++++---
 2 files changed, 14 insertions(+), 10 deletions(-)

(limited to 'js')

diff --git a/js/src/frontend/TokenStream.cpp b/js/src/frontend/TokenStream.cpp
index 9becaf55e..e8d622d38 100644
--- a/js/src/frontend/TokenStream.cpp
+++ b/js/src/frontend/TokenStream.cpp
@@ -777,7 +777,7 @@ TokenStream::reportErrorNoOffset(unsigned errorNumber, ...)
 }
 
 bool
-TokenStream::reportWarning(unsigned errorNumber, ...)
+TokenStream::warning(unsigned errorNumber, ...)
 {
     va_list args;
     va_start(args, errorNumber);
@@ -958,9 +958,10 @@ TokenStream::getDirective(bool isMultiline, bool shouldWarnDeprecated,
     int32_t c;
 
     if (peekChars(directiveLength, peeked) && CharsMatch(peeked, directive)) {
-        if (shouldWarnDeprecated &&
-            !reportWarning(JSMSG_DEPRECATED_PRAGMA, errorMsgPragma))
-            return false;
+        if (shouldWarnDeprecated) {
+            if (!warning(JSMSG_DEPRECATED_PRAGMA, errorMsgPragma))
+                return false;
+        }
 
         skipChars(directiveLength);
         tokenbuf.clear();
@@ -1555,10 +1556,11 @@ TokenStream::getTokenInternal(TokenKind* ttp, Modifier modifier)
                 // grammar. We might not always be so permissive, so we warn
                 // about it.
                 if (c >= '8') {
-                    if (!reportWarning(JSMSG_BAD_OCTAL, c == '8' ? "08" : "09")) {
+                    if (!warning(JSMSG_BAD_OCTAL, c == '8' ? "08" : "09"))
                         goto error;
-                    }
-                    goto decimal;   // use the decimal scanner for the rest of the number
+
+                    // Use the decimal scanner for the rest of the number.
+                    goto decimal;
                 }
                 c = getCharIgnoreEOL();
             }
diff --git a/js/src/frontend/TokenStream.h b/js/src/frontend/TokenStream.h
index f08d317ba..18e9cb3ca 100644
--- a/js/src/frontend/TokenStream.h
+++ b/js/src/frontend/TokenStream.h
@@ -364,16 +364,18 @@ class MOZ_STACK_CLASS TokenStream
     // TokenStream-specific error reporters.
     bool reportError(unsigned errorNumber, ...);
     bool reportErrorNoOffset(unsigned errorNumber, ...);
-    bool reportWarning(unsigned errorNumber, ...);
 
     // Report the given error at the current offset.
     void error(unsigned errorNumber, ...);
 
+    // Warn at the current offset.
+    MOZ_MUST_USE bool warning(unsigned errorNumber, ...);
+
     static const uint32_t NoOffset = UINT32_MAX;
 
     // General-purpose error reporters.  You should avoid calling these
-    // directly, and instead use the more succinct alternatives (e.g.
-    // reportError()) in TokenStream, Parser, and BytecodeEmitter.
+    // directly, and instead use the more succinct alternatives (error(),
+    // warning(), &c.) in TokenStream, Parser, and BytecodeEmitter.
     bool reportCompileErrorNumberVA(uint32_t offset, unsigned flags, unsigned errorNumber,
                                     va_list args);
     bool reportStrictModeErrorNumberVA(uint32_t offset, bool strictMode, unsigned errorNumber,
-- 
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