Added proper string escaping to the disassembler.

The disassembler now generates correct string when encountering
quotes and slashes.

CMakeLists.txt

@@ -172,6 +172,7 @@ if (NOT ${SPIRV_SKIP_EXECUTABLES})
       ${CMAKE_CURRENT_SOURCE_DIR}/test/BinaryEndianness.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/BinaryHeaderGet.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/BinaryToText.cpp
+      ${CMAKE_CURRENT_SOURCE_DIR}/test/BinaryToText.Literal.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/Comment.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/DiagnosticPrint.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/DiagnosticStream.cpp

source/binary.cpp

@@ -244,7 +244,12 @@ spv_result_t spvBinaryDecodeOperand(
 
       stream.get() << "\"";
       stream.get() << (color ? clr::green() : "");
-      stream.get() << string;
+      for (size_t i = 0; i < strlen(string); ++i) {
+        if(string[i] == '"' || string[i] == '\\') {
+          stream.get() << '\\';
+        }
+        stream.get() << string[i];
+      }
       stream.get() << (color ? clr::reset() : "");
       stream.get() << "\"";
       position->index += stringOperandCount;

test/BinaryToText.Literal.cpp

@@ -0,0 +1,86 @@
+//
+// Copyright (c) 2015 The Khronos Group Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and/or associated documentation files (the
+// "Materials"), to deal in the Materials without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Materials, and to
+// permit persons to whom the Materials are furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Materials.
+//
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+//    https://www.khronos.org/registry/
+//
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+
+#include "UnitSPIRV.h"
+
+#include "gmock/gmock.h"
+#include "TestFixture.h"
+
+using ::testing::Eq;
+
+namespace {
+
+using RoundTripLiteralsTest =
+    spvtest::TextToBinaryTestBase<::testing::TestWithParam<std::string>>;
+
+TEST_P(RoundTripLiteralsTest, Sample) {
+  EXPECT_THAT(EncodeAndDecodeSuccessfully(GetParam()),
+              Eq(GetParam()));
+}
+
+// clang-format off
+INSTANTIATE_TEST_CASE_P(
+    StringLiterals, RoundTripLiteralsTest,
+    ::testing::ValuesIn(std::vector<std::string>{
+        "OpName %1 \"\"\n",           // empty
+        "OpName %1 \"foo\"\n",        // normal
+        "OpName %1 \"foo bar\"\n",    // string with spaces
+        "OpName %1 \"foo\tbar\"\n",   // string with tab
+        "OpName %1 \"\tfoo\"\n",      // starts with tab
+        "OpName %1 \" foo\"\n",       // starts with space
+        "OpName %1 \"foo \"\n",       // ends with space
+        "OpName %1 \"foo\t\"\n",       // ends with tab
+        "OpName %1 \"foo\nbar\"\n",               // contains newline
+        "OpName %1 \"\nfoo\nbar\"\n",             // starts with newline
+        "OpName %1 \"\n\n\nfoo\nbar\"\n",         // multiple newlines
+        "OpName %1 \"\\\"foo\nbar\\\"\"\n",       // escaped quote
+        "OpName %1 \"\\\\foo\nbar\\\\\"\n",       // escaped backslash
+        "OpName %1 \"\U00E4BAB2\"\n",             // UTF-8
+    }));
+// clang-format on
+
+using RoundTripSpecialCaseLiteralsTest = spvtest::TextToBinaryTestBase<
+    ::testing::TestWithParam<std::pair<std::string, std::string>>>;
+
+// Test case where the generated disassembly is not the same as the
+// assembly passed in.
+TEST_P(RoundTripSpecialCaseLiteralsTest, Sample) {
+  EXPECT_THAT(EncodeAndDecodeSuccessfully(std::get<0>(GetParam())),
+              Eq(std::get<1>(GetParam())));
+}
+
+// clang-format off
+INSTANTIATE_TEST_CASE_P(
+    StringLiterals, RoundTripSpecialCaseLiteralsTest,
+    ::testing::ValuesIn(std::vector<std::pair<std::string, std::string>>{
+      {"OpName %1 \"\\foo\"\n", "OpName %1 \"foo\"\n"}, // Escape f
+      {"OpName %1 \"\\\nfoo\"\n", "OpName %1 \"\nfoo\"\n"}, // Escape newline
+      {"OpName %1 \"\\\U00E4BAB2\"\n", "OpName %1 \"\U00E4BAB2\"\n"}, // Escape utf-8
+    }));
+// clang-format on
+
+}  // anonymous namespace