blob: f10b31222be2ce37439b34c637da2dee28e7bb38 [file] [log] [blame]
// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/lang/wgsl/ast/discard_statement.h"
#include "src/tint/lang/wgsl/reader/parser/helper_test.h"
namespace tint::wgsl::reader {
namespace {
TEST_F(WGSLParserTest, LoopStmt_BodyNoContinuing) {
auto p = parser("loop { discard; }");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->body->source.range.begin.line, 1u);
EXPECT_EQ(e->body->source.range.begin.column, 6u);
EXPECT_EQ(e->body->source.range.end.line, 1u);
EXPECT_EQ(e->body->source.range.end.column, 18u);
ASSERT_EQ(e->body->statements.Length(), 1u);
EXPECT_TRUE(e->body->statements[0]->Is<ast::DiscardStatement>());
EXPECT_EQ(e->continuing->statements.Length(), 0u);
}
TEST_F(WGSLParserTest, LoopStmt_BodyWithContinuing) {
auto p = parser("loop { discard; continuing { discard; }}");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->body->source.range.begin.line, 1u);
EXPECT_EQ(e->body->source.range.begin.column, 6u);
EXPECT_EQ(e->body->source.range.end.line, 1u);
EXPECT_EQ(e->body->source.range.end.column, 41u);
ASSERT_EQ(e->body->statements.Length(), 1u);
EXPECT_TRUE(e->body->statements[0]->Is<ast::DiscardStatement>());
EXPECT_EQ(e->continuing->statements.Length(), 1u);
EXPECT_TRUE(e->continuing->statements[0]->Is<ast::DiscardStatement>());
EXPECT_EQ(e->continuing->source.range.begin.line, 1u);
EXPECT_EQ(e->continuing->source.range.begin.column, 28u);
EXPECT_EQ(e->continuing->source.range.end.line, 1u);
EXPECT_EQ(e->continuing->source.range.end.column, 40u);
}
TEST_F(WGSLParserTest, LoopStmt_NoBodyNoContinuing) {
auto p = parser("loop { }");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
ASSERT_EQ(e->body->statements.Length(), 0u);
ASSERT_EQ(e->continuing->statements.Length(), 0u);
}
TEST_F(WGSLParserTest, LoopStmt_NoBodyWithContinuing) {
auto p = parser("loop { continuing { discard; }}");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
ASSERT_EQ(e->body->statements.Length(), 0u);
ASSERT_EQ(e->continuing->statements.Length(), 1u);
EXPECT_TRUE(e->continuing->statements[0]->Is<ast::DiscardStatement>());
}
TEST_F(WGSLParserTest, LoopStmt_StmtAttributes) {
auto p = parser("@diagnostic(off, derivative_uniformity) loop { }");
auto attrs = p->attribute_list();
auto l = p->loop_statement(attrs.value);
EXPECT_FALSE(p->has_error()) << p->error();
EXPECT_FALSE(l.errored);
ASSERT_TRUE(l.matched);
EXPECT_TRUE(attrs->IsEmpty());
ASSERT_EQ(l->attributes.Length(), 1u);
EXPECT_TRUE(l->attributes[0]->Is<ast::DiagnosticAttribute>());
}
TEST_F(WGSLParserTest, LoopStmt_BodyAttributes) {
auto p = parser("loop @diagnostic(off, derivative_uniformity) { }");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
ASSERT_EQ(e->body->attributes.Length(), 1u);
EXPECT_TRUE(e->body->attributes[0]->Is<ast::DiagnosticAttribute>());
}
TEST_F(WGSLParserTest, LoopStmt_MissingBracketLeft) {
auto p = parser("loop discard; }");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:6: expected '{' for loop");
}
TEST_F(WGSLParserTest, LoopStmt_MissingBracketRight) {
auto p = parser("loop { discard; ");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:17: expected '}' for loop");
}
TEST_F(WGSLParserTest, LoopStmt_InvalidStatements) {
auto p = parser("loop { discard }");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:16: expected ';' for discard statement");
}
TEST_F(WGSLParserTest, LoopStmt_InvalidContinuing) {
auto p = parser("loop { continuing { discard }}");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:29: expected ';' for discard statement");
}
TEST_F(WGSLParserTest, LoopStmt_Continuing_BreakIf) {
auto p = parser("loop { continuing { break if 1 + 2 < 5; }}");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
ASSERT_EQ(e->body->statements.Length(), 0u);
ASSERT_EQ(e->continuing->statements.Length(), 1u);
EXPECT_TRUE(e->continuing->statements[0]->Is<ast::BreakIfStatement>());
}
TEST_F(WGSLParserTest, LoopStmt_Continuing_BreakIf_MissingExpr) {
auto p = parser("loop { continuing { break if; }}");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:21: expected expression for `break-if`");
}
TEST_F(WGSLParserTest, LoopStmt_Continuing_BreakIf_InvalidExpr) {
auto p = parser("loop { continuing { break if switch; }}");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:21: expected expression for `break-if`");
}
TEST_F(WGSLParserTest, LoopStmt_NoContinuing_BreakIf) {
auto p = parser("loop { break if true; }");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:14: expected ';' for break statement");
}
TEST_F(WGSLParserTest, LoopStmt_Continuing_BreakIf_MissingSemicolon) {
auto p = parser("loop { continuing { break if 1 + 2 < 5 }}");
Parser::AttributeList attrs;
auto e = p->loop_statement(attrs);
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:40: expected ';' for `break-if` statement");
}
} // namespace
} // namespace tint::wgsl::reader