blob: 19fd6b176f0e38aad82c313028e596631469c5a9 [file] [log] [blame]
// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/lang/wgsl/reader/parser/helper_test.h"
namespace tint::wgsl::reader {
namespace {
TEST_F(WGSLParserTest, RelationalExpression_PostUnary_Parses_LessThan) {
auto p = parser("a < true");
auto lhs = p->unary_expression();
auto e = p->expect_relational_expression_post_unary_expression(lhs.value);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->source.range.begin.line, 1u);
EXPECT_EQ(e->source.range.begin.column, 3u);
EXPECT_EQ(e->source.range.end.line, 1u);
EXPECT_EQ(e->source.range.end.column, 4u);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kLessThan, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Register("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_PostUnary_Parses_GreaterThan) {
auto p = parser("a > true");
auto lhs = p->unary_expression();
auto e = p->expect_relational_expression_post_unary_expression(lhs.value);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->source.range.begin.line, 1u);
EXPECT_EQ(e->source.range.begin.column, 3u);
EXPECT_EQ(e->source.range.end.line, 1u);
EXPECT_EQ(e->source.range.end.column, 4u);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kGreaterThan, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Register("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_PostUnary_Parses_LessThanEqual) {
auto p = parser("a <= true");
auto lhs = p->unary_expression();
auto e = p->expect_relational_expression_post_unary_expression(lhs.value);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->source.range.begin.line, 1u);
EXPECT_EQ(e->source.range.begin.column, 3u);
EXPECT_EQ(e->source.range.end.line, 1u);
EXPECT_EQ(e->source.range.end.column, 5u);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kLessThanEqual, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Register("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_PostUnary_Parses_GreaterThanEqual) {
auto p = parser("a >= true");
auto lhs = p->unary_expression();
auto e = p->expect_relational_expression_post_unary_expression(lhs.value);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->source.range.begin.line, 1u);
EXPECT_EQ(e->source.range.begin.column, 3u);
EXPECT_EQ(e->source.range.end.line, 1u);
EXPECT_EQ(e->source.range.end.column, 5u);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kGreaterThanEqual, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Register("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_PostUnary_Parses_Equal) {
auto p = parser("a == true");
auto lhs = p->unary_expression();
auto e = p->expect_relational_expression_post_unary_expression(lhs.value);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->source.range.begin.line, 1u);
EXPECT_EQ(e->source.range.begin.column, 3u);
EXPECT_EQ(e->source.range.end.line, 1u);
EXPECT_EQ(e->source.range.end.column, 5u);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kEqual, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_PostUnary_Parses_NotEqual) {
auto p = parser("a != true");
auto lhs = p->unary_expression();
auto e = p->expect_relational_expression_post_unary_expression(lhs.value);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->source.range.begin.line, 1u);
EXPECT_EQ(e->source.range.begin.column, 3u);
EXPECT_EQ(e->source.range.end.line, 1u);
EXPECT_EQ(e->source.range.end.column, 5u);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kNotEqual, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_PostUnary_InvalidRHS) {
auto p = parser("true < if (a) {}");
auto lhs = p->unary_expression();
auto e = p->expect_relational_expression_post_unary_expression(lhs.value);
ASSERT_TRUE(p->has_error());
EXPECT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:8: unable to parse right side of < expression");
}
TEST_F(WGSLParserTest, RelationalExpression_PostUnary_NoMatch_ReturnsLHS) {
auto p = parser("a true");
auto lhs = p->unary_expression();
auto e = p->expect_relational_expression_post_unary_expression(lhs.value);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(lhs.value, e.value);
}
TEST_F(WGSLParserTest, RelationalExpression_Matches) {
auto p = parser("a >= true");
auto e = p->relational_expression();
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kGreaterThanEqual, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Register("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_InvalidLHS) {
auto p = parser("if (a) {}< 3");
auto e = p->relational_expression();
ASSERT_FALSE(e.matched);
EXPECT_FALSE(e.errored);
ASSERT_FALSE(p->has_error()) << p->error();
EXPECT_EQ(e.value, nullptr);
}
TEST_F(WGSLParserTest, RelationalExpression_InvalidRHS) {
auto p = parser("true < if (a) {}");
auto e = p->relational_expression();
ASSERT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
ASSERT_TRUE(p->has_error());
EXPECT_EQ(e.value, nullptr);
EXPECT_EQ(p->error(), "1:8: unable to parse right side of < expression");
}
TEST_F(WGSLParserTest, RelationalExpression_Parses_Equal) {
auto p = parser("a == true");
auto e = p->relational_expression();
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->source.range.begin.line, 1u);
EXPECT_EQ(e->source.range.begin.column, 3u);
EXPECT_EQ(e->source.range.end.line, 1u);
EXPECT_EQ(e->source.range.end.column, 5u);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kEqual, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_Parses_NotEqual) {
auto p = parser("a != true");
auto e = p->relational_expression();
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
EXPECT_EQ(e->source.range.begin.line, 1u);
EXPECT_EQ(e->source.range.begin.column, 3u);
EXPECT_EQ(e->source.range.end.line, 1u);
EXPECT_EQ(e->source.range.end.column, 5u);
ASSERT_TRUE(e->Is<ast::BinaryExpression>());
auto* rel = e->As<ast::BinaryExpression>();
EXPECT_EQ(core::BinaryOp::kNotEqual, rel->op);
ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
auto* ident_expr = rel->lhs->As<ast::IdentifierExpression>();
EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("a"));
ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
}
TEST_F(WGSLParserTest, RelationalExpression_Equal_InvalidRHS) {
auto p = parser("true == if (a) {}");
auto e = p->relational_expression();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:9: unable to parse right side of == expression");
}
} // namespace
} // namespace tint::wgsl::reader