711e73c099
isConstant really means "has a known value at compile time", but for variables declared with "const", the two meanings had been conflated. There were several ways for this to produce surprising error messages. The included unit test crashed before removing the override, and now passes. Change-Id: I49b926e51c421db93240cbbf42231de0444358d6 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/299860 Reviewed-by: John Stiles <johnstiles@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
540 lines
20 KiB
C++
540 lines
20 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "src/sksl/SkSLCompiler.h"
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#include "tests/Test.h"
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static void test_failure(skiatest::Reporter* r, const char* src, const char* error) {
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SkSL::Compiler compiler;
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SkSL::Program::Settings settings;
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sk_sp<GrShaderCaps> caps = SkSL::ShaderCapsFactory::Default();
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settings.fCaps = caps.get();
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std::unique_ptr<SkSL::Program> program = compiler.convertProgram(SkSL::Program::kFragment_Kind,
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SkSL::String(src), settings);
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if (!compiler.errorCount()) {
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compiler.optimize(*program);
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}
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SkSL::String skError(error);
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if (compiler.errorText() != skError) {
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SkDebugf("SKSL ERROR:\n source: %s\n expected: %s received: %s", src, error,
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compiler.errorText().c_str());
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}
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REPORTER_ASSERT(r, compiler.errorText() == skError);
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}
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static void test_success(skiatest::Reporter* r, const char* src) {
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SkSL::Compiler compiler;
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SkSL::Program::Settings settings;
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sk_sp<GrShaderCaps> caps = SkSL::ShaderCapsFactory::Default();
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settings.fCaps = caps.get();
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std::unique_ptr<SkSL::Program> program = compiler.convertProgram(SkSL::Program::kFragment_Kind,
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SkSL::String(src), settings);
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REPORTER_ASSERT(r, program);
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}
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DEF_TEST(SkSLConstVariableComparison, r) {
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test_success(r,
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"void main() {"
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" const float4 a = float4(0);"
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" const float4 b = float4(1);"
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" if (a == b) { discard; }"
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"}");
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}
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DEF_TEST(SkSLOpenArray, r) {
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test_failure(r,
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"void main(inout float4 color) { color.r[ = ( color.g ); }",
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"error: 1: expected expression, but found '='\n1 error\n");
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}
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DEF_TEST(SkSLUndefinedSymbol, r) {
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test_failure(r,
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"void main() { x = float2(1); }",
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"error: 1: unknown identifier 'x'\n1 error\n");
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}
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DEF_TEST(SkSLUndefinedFunction, r) {
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test_failure(r,
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"void main() { int x = foo(1); }",
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"error: 1: unknown identifier 'foo'\n1 error\n");
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}
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DEF_TEST(SkSLGenericArgumentMismatch, r) {
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test_failure(r,
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"void main() { float x = sin(1, 2); }",
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"error: 1: no match for sin(int, int)\n1 error\n");
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test_failure(r,
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"void main() { float x = sin(true); }",
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"error: 1: no match for sin(bool)\n1 error\n");
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test_success(r,
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"void main() { float x = sin(1); }");
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}
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DEF_TEST(SkSLArgumentCountMismatch, r) {
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test_failure(r,
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"float foo(float x) { return x * x; }"
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"void main() { float x = foo(1, 2); }",
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"error: 1: call to 'foo' expected 1 argument, but found 2\n1 error\n");
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}
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DEF_TEST(SkSLArgumentMismatch, r) {
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test_failure(r,
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"float foo(float x) { return x * x; }"
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"void main() { float x = foo(true); }",
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"error: 1: expected 'float', but found 'bool'\n1 error\n");
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}
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DEF_TEST(SkSLIfTypeMismatch, r) {
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test_failure(r,
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"void main() { if (3) { } }",
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"error: 1: expected 'bool', but found 'int'\n1 error\n");
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}
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DEF_TEST(SkSLDoTypeMismatch, r) {
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test_failure(r,
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"void main() { do { } while (float2(1)); }",
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"error: 1: expected 'bool', but found 'float2'\n1 error\n");
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}
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DEF_TEST(SkSLWhileTypeMismatch, r) {
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test_failure(r,
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"void main() { while (float3(1)) { } }",
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"error: 1: expected 'bool', but found 'float3'\n1 error\n");
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}
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DEF_TEST(SkSLForTypeMismatch, r) {
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test_failure(r,
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"void main() { for (int x = 0; x; x++) { } }",
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"error: 1: expected 'bool', but found 'int'\n1 error\n");
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}
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DEF_TEST(SkSLConstructorTypeMismatch, r) {
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test_failure(r,
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"void main() { float2 x = float2(1.0, false); }",
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"error: 1: expected 'float', but found 'bool'\n1 error\n");
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test_failure(r,
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"void main() { float2 x = float2(bool2(false)); }",
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"error: 1: 'bool2' is not a valid parameter to 'float2' constructor\n1 error\n");
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test_failure(r,
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"void main() { bool2 x = bool2(float2(1)); }",
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"error: 1: 'float2' is not a valid parameter to 'bool2' constructor\n1 error\n");
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test_failure(r,
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"void main() { bool x = bool(1.0); }",
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"error: 1: cannot construct 'bool'\n1 error\n");
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test_failure(r,
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"struct foo { int x; }; void main() { foo x = foo(5); }",
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"error: 1: cannot construct 'foo'\n1 error\n");
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test_failure(r,
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"struct foo { int x; } foo; void main() { float x = float(foo); }",
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"error: 1: invalid argument to 'float' constructor (expected a number or bool, but found 'foo')\n1 error\n");
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test_failure(r,
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"struct foo { int x; } foo; void main() { float2 x = float2(foo); }",
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"error: 1: 'foo' is not a valid parameter to 'float2' constructor\n1 error\n");
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test_failure(r,
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"void main() { float2x2 x = float2x2(true); }",
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"error: 1: expected 'float', but found 'bool'\n1 error\n");
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}
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DEF_TEST(SkSLConstructorArgumentCount, r) {
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test_failure(r,
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"void main() { float3 x = float3(1.0, 2.0); }",
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"error: 1: invalid arguments to 'float3' constructor (expected 3 scalars, but "
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"found 2)\n1 error\n");
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test_failure(r,
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"void main() { float3 x = float3(1.0, 2.0, 3.0, 4.0); }",
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"error: 1: invalid arguments to 'float3' constructor (expected 3 scalars, but found "
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"4)\n1 error\n");
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}
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DEF_TEST(SkSLSwizzleScalar, r) {
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test_failure(r,
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"void main() { float x = 1; float y = x.y; }",
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"error: 1: cannot swizzle value of type 'float'\n1 error\n");
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}
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DEF_TEST(SkSLSwizzleMatrix, r) {
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test_failure(r,
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"void main() { float2x2 x = float2x2(1); float y = x.y; }",
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"error: 1: cannot swizzle value of type 'float2x2'\n1 error\n");
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}
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DEF_TEST(SkSLSwizzleOutOfBounds, r) {
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test_failure(r,
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"void main() { float3 test = float2(1).xyz; }",
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"error: 1: invalid swizzle component 'z'\n1 error\n");
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}
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DEF_TEST(SkSLSwizzleTooManyComponents, r) {
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test_failure(r,
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"void main() { float4 test = float2(1).xxxxx; }",
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"error: 1: too many components in swizzle mask 'xxxxx'\n1 error\n");
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}
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DEF_TEST(SkSLSwizzleDuplicateOutput, r) {
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test_failure(r,
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"void main() { float4 test = float4(1); test.xyyz = float4(1); }",
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"error: 1: cannot write to the same swizzle field more than once\n1 error\n");
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}
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DEF_TEST(SkSLSwizzleConstantOutput, r) {
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test_failure(r,
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"void main() { float4 test = float4(1); test.xyz0 = float4(1); }",
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"error: 1: cannot write to a swizzle mask containing a constant\n1 error\n");
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}
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DEF_TEST(SkSLAssignmentTypeMismatch, r) {
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test_failure(r,
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"void main() { int x = 1.0; }",
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"error: 1: expected 'int', but found 'float'\n1 error\n");
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test_failure(r,
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"void main() { int x; x = 1.0; }",
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"error: 1: type mismatch: '=' cannot operate on 'int', 'float'\n1 error\n");
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test_success(r,
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"void main() { float3 x = float3(0); x *= 1.0; }");
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test_failure(r,
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"void main() { int3 x = int3(0); x *= 1.0; }",
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"error: 1: type mismatch: '*=' cannot operate on 'int3', 'float'\n1 error\n");
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}
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DEF_TEST(SkSLReturnFromVoid, r) {
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test_failure(r,
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"void main() { return true; }",
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"error: 1: may not return a value from a void function\n1 error\n");
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}
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DEF_TEST(SkSLReturnMissingValue, r) {
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test_failure(r,
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"int foo() { return; } void main() { }",
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"error: 1: expected function to return 'int'\n1 error\n");
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}
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DEF_TEST(SkSLReturnTypeMismatch, r) {
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test_failure(r,
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"int foo() { return 1.0; } void main() { }",
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"error: 1: expected 'int', but found 'float'\n1 error\n");
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}
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DEF_TEST(SkSLDuplicateFunction, r) {
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test_failure(r,
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"void main() { } void main() { }",
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"error: 1: duplicate definition of void main()\n1 error\n");
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test_success(r,
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"void main(); void main() { }");
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}
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DEF_TEST(SkSLUsingInvalidValue, r) {
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test_failure(r,
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"void main() { int x = int; }",
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"error: 1: expected '(' to begin constructor invocation\n1 error\n");
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test_failure(r,
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"int test() { return 1; } void main() { int x = test; }",
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"error: 1: expected '(' to begin function call\n1 error\n");
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}
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DEF_TEST(SkSLDifferentReturnType, r) {
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test_failure(r,
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"int main() { return 1; } void main() { }",
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"error: 1: functions 'void main()' and 'int main()' differ only in return type\n1 "
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"error\n");
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}
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DEF_TEST(SkSLDifferentModifiers, r) {
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test_failure(r,
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"void test(int x); void test(out int x) { }",
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"error: 1: modifiers on parameter 1 differ between declaration and definition\n1 "
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"error\n");
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}
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DEF_TEST(SkSLDuplicateSymbol, r) {
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test_failure(r,
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"int main; void main() { }",
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"error: 1: symbol 'main' was already defined\n1 error\n");
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test_failure(r,
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"int x; int x; void main() { }",
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"error: 1: symbol 'x' was already defined\n1 error\n");
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test_success(r, "int x; void main() { int x; }");
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}
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DEF_TEST(SkSLBinaryTypeMismatch, r) {
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test_failure(r,
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"void main() { float x = 3 * true; }",
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"error: 1: type mismatch: '*' cannot operate on 'int', 'bool'\n1 error\n");
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test_failure(r,
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"void main() { bool x = 1 || 2.0; }",
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"error: 1: type mismatch: '||' cannot operate on 'int', 'float'\n1 error\n");
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test_failure(r,
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"void main() { bool x = float2(0) == 0; }",
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"error: 1: type mismatch: '==' cannot operate on 'float2', 'int'\n1 error\n");
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test_failure(r,
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"void main() { bool x = float2(0) != 0; }",
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"error: 1: type mismatch: '!=' cannot operate on 'float2', 'int'\n1 error\n");
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}
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DEF_TEST(SkSLCallNonFunction, r) {
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test_failure(r,
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"void main() { float x = 3; x(); }",
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"error: 1: not a function\n1 error\n");
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}
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DEF_TEST(SkSLInvalidUnary, r) {
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test_failure(r,
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"void main() { float4x4 x = float4x4(1); ++x; }",
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"error: 1: '++' cannot operate on 'float4x4'\n1 error\n");
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test_failure(r,
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"void main() { float3 x = float3(1); --x; }",
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"error: 1: '--' cannot operate on 'float3'\n1 error\n");
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test_failure(r,
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"void main() { float4x4 x = float4x4(1); x++; }",
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"error: 1: '++' cannot operate on 'float4x4'\n1 error\n");
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test_failure(r,
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"void main() { float3 x = float3(1); x--; }",
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"error: 1: '--' cannot operate on 'float3'\n1 error\n");
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test_failure(r,
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"void main() { int x = !12; }",
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"error: 1: '!' cannot operate on 'int'\n1 error\n");
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test_failure(r,
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"struct foo { } bar; void main() { foo x = +bar; }",
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"error: 1: '+' cannot operate on 'foo'\n1 error\n");
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test_failure(r,
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"struct foo { } bar; void main() { foo x = -bar; }",
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"error: 1: '-' cannot operate on 'foo'\n1 error\n");
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test_success(r,
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"void main() { float2 x = float2(1, 1); x = +x; x = -x; }");
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}
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DEF_TEST(SkSLInvalidAssignment, r) {
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test_failure(r,
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"void main() { 1 = 2; }",
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"error: 1: cannot assign to this expression\n1 error\n");
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test_failure(r,
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"uniform int x; void main() { x = 0; }",
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"error: 1: cannot modify immutable variable 'x'\n1 error\n");
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test_failure(r,
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"const int x; void main() { x = 0; }",
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"error: 1: cannot modify immutable variable 'x'\n1 error\n");
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}
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DEF_TEST(SkSLBadIndex, r) {
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test_failure(r,
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"void main() { int x = 2[0]; }",
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"error: 1: expected array, but found 'int'\n1 error\n");
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test_failure(r,
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"void main() { float2 x = float2(0); int y = x[0][0]; }",
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"error: 1: expected array, but found 'float'\n1 error\n");
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}
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DEF_TEST(SkSLTernaryMismatch, r) {
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test_failure(r,
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"void main() { int x = 5 > 2 ? true : 1.0; }",
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"error: 1: ternary operator result mismatch: 'bool', 'float'\n1 error\n");
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test_failure(r,
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"void main() { int x = 5 > 2 ? float3(1) : 1.0; }",
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"error: 1: ternary operator result mismatch: 'float3', 'float'\n1 error\n");
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}
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DEF_TEST(SkSLInterfaceBlockStorageModifiers, r) {
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test_failure(r,
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"uniform foo { out int x; };",
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"error: 1: interface block fields may not have storage qualifiers\n1 error\n");
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}
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DEF_TEST(SkSLUseWithoutInitialize, r) {
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test_failure(r,
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"void main() { int x; if (5 == 2) x = 3; x++; }",
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"error: 1: 'x' has not been assigned\n1 error\n");
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test_failure(r,
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"void main() { int x[2][2]; int i; x[i][1] = 4; }",
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"error: 1: 'i' has not been assigned\n1 error\n");
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test_failure(r,
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"int main() { int r; return r; }",
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"error: 1: 'r' has not been assigned\n1 error\n");
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test_failure(r,
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"void main() { int x; int y = x; }",
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"error: 1: 'x' has not been assigned\n1 error\n");
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test_failure(r,
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"void main() { bool x; if (true && (false || x)) return; }",
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"error: 1: 'x' has not been assigned\n1 error\n");
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test_failure(r,
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"void main() { int x; switch (3) { case 0: x = 0; case 1: x = 1; }"
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"sk_FragColor = half4(x); }",
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"error: 1: 'x' has not been assigned\n1 error\n");
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}
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DEF_TEST(SkSLUnreachable, r) {
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test_failure(r,
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"void main() { return; return; }",
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"error: 1: unreachable\n1 error\n");
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test_failure(r,
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"void main() { for (;;) { continue; int x = 1; } }",
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"error: 1: unreachable\n1 error\n");
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/* test_failure(r,
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"void main() { for (;;) { } return; }",
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"error: 1: unreachable\n1 error\n");*/
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test_failure(r,
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"void main() { if (true) return; else discard; return; }",
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"error: 1: unreachable\n1 error\n");
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test_failure(r,
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"void main() { return; main(); }",
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"error: 1: unreachable\n1 error\n");
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}
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DEF_TEST(SkSLNoReturn, r) {
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test_failure(r,
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"int foo() { if (2 > 5) return 3; }",
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"error: 1: function 'foo' can exit without returning a value\n1 error\n");
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}
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DEF_TEST(SkSLBreakOutsideLoop, r) {
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test_failure(r,
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"void foo() { while(true) {} if (true) break; }",
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"error: 1: break statement must be inside a loop or switch\n1 error\n");
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}
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DEF_TEST(SkSLContinueOutsideLoop, r) {
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test_failure(r,
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"void foo() { for(;;); continue; }",
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"error: 1: continue statement must be inside a loop\n1 error\n");
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test_failure(r,
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"void foo() { switch (1) { default: continue; } }",
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"error: 1: continue statement must be inside a loop\n1 error\n");
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}
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DEF_TEST(SkSLStaticIfError, r) {
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// ensure eliminated branch of static if / ternary is still checked for errors
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test_failure(r,
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"void foo() { if (true); else x = 5; }",
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"error: 1: unknown identifier 'x'\n1 error\n");
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test_failure(r,
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"void foo() { if (false) x = 5; }",
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"error: 1: unknown identifier 'x'\n1 error\n");
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test_failure(r,
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"void foo() { true ? 5 : x; }",
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"error: 1: unknown identifier 'x'\n1 error\n");
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test_failure(r,
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"void foo() { false ? x : 5; }",
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"error: 1: unknown identifier 'x'\n1 error\n");
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}
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DEF_TEST(SkSLBadCap, r) {
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test_failure(r,
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"bool b = sk_Caps.bugFreeDriver;",
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"error: 1: unknown capability flag 'bugFreeDriver'\n1 error\n");
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}
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DEF_TEST(SkSLDivByZero, r) {
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test_failure(r,
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"int x = 1 / 0;",
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"error: 1: division by zero\n1 error\n");
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test_failure(r,
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"float x = 1 / 0;",
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"error: 1: division by zero\n1 error\n");
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test_failure(r,
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"float x = 1.0 / 0.0;",
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|
"error: 1: division by zero\n1 error\n");
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test_failure(r,
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"float x = -67.0 / (3.0 - 3);",
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|
"error: 1: division by zero\n1 error\n");
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}
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DEF_TEST(SkSLUnsupportedGLSLIdentifiers, r) {
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test_failure(r,
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|
"void main() { float x = gl_FragCoord.x; };",
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|
"error: 1: unknown identifier 'gl_FragCoord'\n1 error\n");
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test_failure(r,
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|
"void main() { float r = gl_FragColor.r; };",
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|
"error: 1: unknown identifier 'gl_FragColor'\n1 error\n");
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}
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|
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DEF_TEST(SkSLWrongSwitchTypes, r) {
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|
test_failure(r,
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|
"void main() { switch (float2(1)) { case 1: break; } }",
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|
"error: 1: expected 'int', but found 'float2'\n1 error\n");
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|
test_failure(r,
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|
"void main() { switch (1) { case float2(1): break; } }",
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|
"error: 1: expected 'int', but found 'float2'\n1 error\n");
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}
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|
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DEF_TEST(SkSLNonConstantCase, r) {
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|
test_failure(r,
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|
"void main() { int x = 1; switch (1) { case x: break; } }",
|
|
"error: 1: case value must be a constant\n1 error\n");
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|
}
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|
|
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DEF_TEST(SkSLDuplicateCase, r) {
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|
test_failure(r,
|
|
"void main() { switch (1) { case 0: case 1: case 0: break; } }",
|
|
"error: 1: duplicate case value\n1 error\n");
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|
}
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|
|
|
DEF_TEST(SkSLFieldAfterRuntimeArray, r) {
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|
test_failure(r,
|
|
"buffer broken { float x[]; float y; };",
|
|
"error: 1: only the last entry in an interface block may be a runtime-sized "
|
|
"array\n1 error\n");
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|
}
|
|
|
|
DEF_TEST(SkSLStaticIf, r) {
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|
test_success(r,
|
|
"void main() { float x = 5; float y = 10;"
|
|
"@if (x < y) { sk_FragColor = half4(1); } }");
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|
test_failure(r,
|
|
"void main() { float x = sqrt(25); float y = 10;"
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|
"@if (x < y) { sk_FragColor = half4(1); } }",
|
|
"error: 1: static if has non-static test\n1 error\n");
|
|
}
|
|
|
|
DEF_TEST(SkSLStaticSwitch, r) {
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|
test_success(r,
|
|
"void main() {"
|
|
"int x = 1;"
|
|
"@switch (x) {"
|
|
"case 1: sk_FragColor = half4(1); break;"
|
|
"default: sk_FragColor = half4(0);"
|
|
"}"
|
|
"}");
|
|
test_failure(r,
|
|
"void main() {"
|
|
"int x = int(sqrt(1));"
|
|
"@switch (x) {"
|
|
"case 1: sk_FragColor = half4(1); break;"
|
|
"default: sk_FragColor = half4(0);"
|
|
"}"
|
|
"}",
|
|
"error: 1: static switch has non-static test\n1 error\n");
|
|
test_failure(r,
|
|
"void main() {"
|
|
"int x = 1;"
|
|
"@switch (x) {"
|
|
"case 1: sk_FragColor = half4(1); if (sqrt(0) < sqrt(1)) break;"
|
|
"default: sk_FragColor = half4(0);"
|
|
"}"
|
|
"}",
|
|
"error: 1: static switch contains non-static conditional break\n1 error\n");
|
|
}
|
|
|
|
DEF_TEST(SkSLInterfaceBlockScope, r) {
|
|
test_failure(r,
|
|
"uniform testBlock {"
|
|
"float x;"
|
|
"} test[x];",
|
|
"error: 1: unknown identifier 'x'\n1 error\n");
|
|
}
|
|
|
|
DEF_TEST(SkSLDuplicateOutput, r) {
|
|
test_failure(r,
|
|
"layout (location=0, index=0) out half4 duplicateOutput;",
|
|
"error: 1: out location=0, index=0 is reserved for sk_FragColor\n1 error\n");
|
|
}
|
|
|
|
DEF_TEST(SkSLSpuriousFloat, r) {
|
|
test_failure(r,
|
|
"void main() { float x; x = 1.5 2.5; }",
|
|
"error: 1: expected ';', but found '2.5'\n1 error\n");
|
|
}
|