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tint/reader/wgsl: Improve errors when parsing texel formats 

If the texel format doesn't parse, then generate an error message that includes the list of possible values, and a suggestion if there was a close match.

Change-Id: I206aa712d9c9a4f47da099d5f98e12e42f36d42e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/105325
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
This commit is contained in:
Ben Clayton 2022-10-11 19:40:44 +00:00 committed by Dawn LUCI CQ
parent ecd7f7ee7f
commit 9af5b406ba
4 changed files with 38 additions and 28 deletions
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7
src/tint/reader/wgsl/parser_impl.cc
View File

@ -917,12 +917,7 @@ Maybe<const ast::Type*> ParserImpl::depth_texture_type() {
// | 'rgba32sint'
// | 'rgba32float'
Expect<ast::TexelFormat> ParserImpl::expect_texel_format(std::string_view use) {
auto& t = next();
auto fmt = ast::ParseTexelFormat(t.to_str());
if (fmt == ast::TexelFormat::kInvalid) {
return add_error(t.source(), "invalid format", use);
}
return fmt;
return expect_enum("texel format", ast::ParseTexelFormat, ast::kTexelFormatStrings, use);
}
Expect<ParserImpl::TypedIdentifier> ParserImpl::expect_ident_with_optional_type_specifier(

6
src/tint/reader/wgsl/parser_impl_error_msg_test.cc
View File

@ -805,7 +805,8 @@ var x : texture_storage_2d<r32uint, read;
TEST_F(ParserImplErrorTest, GlobalDeclStorageTextureMissingSubtype) {
EXPECT("var x : texture_storage_2d<>;",
R"(test.wgsl:1:28 error: invalid format for storage texture type
R"(test.wgsl:1:28 error: expected texel format for storage texture type
Possible values: 'r32float', 'r32sint', 'r32uint', 'rg32float', 'rg32sint', 'rg32uint', 'rgba16float', 'rgba16sint', 'rgba16uint', 'rgba32float', 'rgba32sint', 'rgba32uint', 'rgba8sint', 'rgba8snorm', 'rgba8uint', 'rgba8unorm'
var x : texture_storage_2d<>;
^
)");
@ -813,7 +814,8 @@ var x : texture_storage_2d<>;
TEST_F(ParserImplErrorTest, GlobalDeclStorageTextureMissingInvalidSubtype) {
EXPECT("var x : texture_storage_2d<1>;",
R"(test.wgsl:1:28 error: invalid format for storage texture type
R"(test.wgsl:1:28 error: expected texel format for storage texture type
Possible values: 'r32float', 'r32sint', 'r32uint', 'rg32float', 'rg32sint', 'rg32uint', 'rgba16float', 'rgba16sint', 'rgba16uint', 'rgba32float', 'rgba32sint', 'rgba32uint', 'rgba8sint', 'rgba8snorm', 'rgba8uint', 'rgba8unorm'
var x : texture_storage_2d<1>;
^
)");

37
src/tint/reader/wgsl/parser_impl_texel_format_test.cc
View File

@ -17,15 +17,16 @@
namespace tint::reader::wgsl {
namespace {
TEST_F(ParserImplTest, ImageStorageType_Invalid) {
TEST_F(ParserImplTest, TexelFormat_Invalid) {
auto p = parser("1234");
auto t = p->expect_texel_format("test");
EXPECT_TRUE(t.errored);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:1: invalid format for test");
EXPECT_EQ(p->error(), R"(1:1: expected texel format for test
Possible values: 'r32float', 'r32sint', 'r32uint', 'rg32float', 'rg32sint', 'rg32uint', 'rgba16float', 'rgba16sint', 'rgba16uint', 'rgba32float', 'rgba32sint', 'rgba32uint', 'rgba8sint', 'rgba8snorm', 'rgba8uint', 'rgba8unorm')");
}
TEST_F(ParserImplTest, ImageStorageType_R32Uint) {
TEST_F(ParserImplTest, TexelFormat_R32Uint) {
auto p = parser("r32uint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -33,7 +34,7 @@ TEST_F(ParserImplTest, ImageStorageType_R32Uint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_R32Sint) {
TEST_F(ParserImplTest, TexelFormat_R32Sint) {
auto p = parser("r32sint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -41,7 +42,7 @@ TEST_F(ParserImplTest, ImageStorageType_R32Sint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_R32Float) {
TEST_F(ParserImplTest, TexelFormat_R32Float) {
auto p = parser("r32float");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -49,7 +50,7 @@ TEST_F(ParserImplTest, ImageStorageType_R32Float) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba8Unorm) {
TEST_F(ParserImplTest, TexelFormat_Rgba8Unorm) {
auto p = parser("rgba8unorm");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -57,7 +58,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba8Unorm) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba8Snorm) {
TEST_F(ParserImplTest, TexelFormat_Rgba8Snorm) {
auto p = parser("rgba8snorm");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -65,7 +66,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba8Snorm) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba8Uint) {
TEST_F(ParserImplTest, TexelFormat_Rgba8Uint) {
auto p = parser("rgba8uint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -73,7 +74,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba8Uint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba8Sint) {
TEST_F(ParserImplTest, TexelFormat_Rgba8Sint) {
auto p = parser("rgba8sint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -81,7 +82,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba8Sint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rg32Uint) {
TEST_F(ParserImplTest, TexelFormat_Rg32Uint) {
auto p = parser("rg32uint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -89,7 +90,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rg32Uint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rg32Sint) {
TEST_F(ParserImplTest, TexelFormat_Rg32Sint) {
auto p = parser("rg32sint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -97,7 +98,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rg32Sint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rg32Float) {
TEST_F(ParserImplTest, TexelFormat_Rg32Float) {
auto p = parser("rg32float");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -105,7 +106,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rg32Float) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba16Uint) {
TEST_F(ParserImplTest, TexelFormat_Rgba16Uint) {
auto p = parser("rgba16uint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -113,7 +114,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba16Uint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba16Sint) {
TEST_F(ParserImplTest, TexelFormat_Rgba16Sint) {
auto p = parser("rgba16sint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -121,7 +122,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba16Sint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba16Float) {
TEST_F(ParserImplTest, TexelFormat_Rgba16Float) {
auto p = parser("rgba16float");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -129,7 +130,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba16Float) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba32Uint) {
TEST_F(ParserImplTest, TexelFormat_Rgba32Uint) {
auto p = parser("rgba32uint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -137,7 +138,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba32Uint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba32Sint) {
TEST_F(ParserImplTest, TexelFormat_Rgba32Sint) {
auto p = parser("rgba32sint");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);
@ -145,7 +146,7 @@ TEST_F(ParserImplTest, ImageStorageType_Rgba32Sint) {
EXPECT_FALSE(p->has_error());
}
TEST_F(ParserImplTest, ImageStorageType_Rgba32Float) {
TEST_F(ParserImplTest, TexelFormat_Rgba32Float) {
auto p = parser("rgba32float");
auto t = p->expect_texel_format("test");
EXPECT_FALSE(t.errored);

16
src/tint/reader/wgsl/parser_impl_texture_sampler_test.cc
View File

@ -218,7 +218,18 @@ TEST_F(ParserImplTest, TextureSamplerTypes_StorageTexture_InvalidType) {
EXPECT_EQ(t.value, nullptr);
EXPECT_FALSE(t.matched);
EXPECT_TRUE(t.errored);
EXPECT_EQ(p->error(), "1:20: invalid format for storage texture type");
EXPECT_EQ(p->error(), R"(1:20: expected texel format for storage texture type
Possible values: 'r32float', 'r32sint', 'r32uint', 'rg32float', 'rg32sint', 'rg32uint', 'rgba16float', 'rgba16sint', 'rgba16uint', 'rgba32float', 'rgba32sint', 'rgba32uint', 'rgba8sint', 'rgba8snorm', 'rgba8uint', 'rgba8unorm')");
}
TEST_F(ParserImplTest, TextureSamplerTypes_StorageTexture_InvalidTypeSuggest) {
auto p = parser("texture_storage_1d<rg32_float, read>");
auto t = p->texture_and_sampler_types();
EXPECT_EQ(t.value, nullptr);
EXPECT_FALSE(t.matched);
EXPECT_TRUE(t.errored);
EXPECT_EQ(p->error(), R"(1:20: expected texel format for storage texture type. Did you mean 'rg32float'?
Possible values: 'r32float', 'r32sint', 'r32uint', 'rg32float', 'rg32sint', 'rg32uint', 'rgba16float', 'rgba16sint', 'rgba16uint', 'rgba32float', 'rgba32sint', 'rgba32uint', 'rgba8sint', 'rgba8snorm', 'rgba8uint', 'rgba8unorm')");
}
TEST_F(ParserImplTest, TextureSamplerTypes_StorageTexture_InvalidAccess) {
@ -236,7 +247,8 @@ TEST_F(ParserImplTest, TextureSamplerTypes_StorageTexture_MissingType) {
EXPECT_EQ(t.value, nullptr);
EXPECT_FALSE(t.matched);
EXPECT_TRUE(t.errored);
EXPECT_EQ(p->error(), "1:20: invalid format for storage texture type");
EXPECT_EQ(p->error(), R"(1:20: expected texel format for storage texture type
Possible values: 'r32float', 'r32sint', 'r32uint', 'rg32float', 'rg32sint', 'rg32uint', 'rgba16float', 'rgba16sint', 'rgba16uint', 'rgba32float', 'rgba32sint', 'rgba32uint', 'rgba8sint', 'rgba8snorm', 'rgba8uint', 'rgba8unorm')");
}
TEST_F(ParserImplTest, TextureSamplerTypes_StorageTexture_MissingLessThan) {