255 lines
8.6 KiB
C++
255 lines
8.6 KiB
C++
// Copyright 2022 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/tint/reader/wgsl/parser_impl_test_helper.h"
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namespace tint::reader::wgsl {
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namespace {
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TEST_F(ParserImplTest, Expression_InvalidLHS) {
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auto p = parser("if (a) {} || true");
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auto e = p->expression();
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EXPECT_FALSE(e.matched);
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EXPECT_FALSE(e.errored);
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EXPECT_FALSE(p->has_error()) << p->error();
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EXPECT_EQ(e.value, nullptr);
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}
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TEST_F(ParserImplTest, Expression_Or_Parses) {
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auto p = parser("a || true");
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auto e = p->expression();
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EXPECT_TRUE(e.matched);
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EXPECT_FALSE(e.errored);
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EXPECT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e.value, nullptr);
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EXPECT_EQ(e->source.range.begin.line, 1u);
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EXPECT_EQ(e->source.range.begin.column, 3u);
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EXPECT_EQ(e->source.range.end.line, 1u);
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EXPECT_EQ(e->source.range.end.column, 5u);
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ASSERT_TRUE(e->Is<ast::BinaryExpression>());
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auto* rel = e->As<ast::BinaryExpression>();
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EXPECT_EQ(ast::BinaryOp::kLogicalOr, rel->op);
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ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
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auto* ident = rel->lhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a"));
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ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
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ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
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}
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TEST_F(ParserImplTest, Expression_Or_Parses_Multiple) {
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auto p = parser("a || true || b");
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auto e = p->expression();
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EXPECT_TRUE(e.matched);
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EXPECT_FALSE(e.errored);
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EXPECT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e.value, nullptr);
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ASSERT_TRUE(e->Is<ast::BinaryExpression>());
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// lhs: (a || true)
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// rhs: b
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auto* rel = e->As<ast::BinaryExpression>();
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EXPECT_EQ(ast::BinaryOp::kLogicalOr, rel->op);
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ASSERT_TRUE(rel->rhs->Is<ast::IdentifierExpression>());
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auto* ident = rel->rhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("b"));
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ASSERT_TRUE(rel->lhs->Is<ast::BinaryExpression>());
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// lhs: a
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// rhs: true
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rel = rel->lhs->As<ast::BinaryExpression>();
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EXPECT_EQ(ast::BinaryOp::kLogicalOr, rel->op);
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ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
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ident = rel->lhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a"));
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ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
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ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
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}
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TEST_F(ParserImplTest, Expression_Or_InvalidRHS) {
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auto p = parser("true || if (a) {}");
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auto e = p->expression();
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EXPECT_FALSE(e.matched);
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EXPECT_TRUE(e.errored);
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EXPECT_EQ(e.value, nullptr);
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EXPECT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:9: unable to parse right side of || expression");
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}
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TEST_F(ParserImplTest, Expression_And_Parses) {
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auto p = parser("a && true");
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auto e = p->expression();
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EXPECT_TRUE(e.matched);
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EXPECT_FALSE(e.errored);
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EXPECT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e.value, nullptr);
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EXPECT_EQ(e->source.range.begin.line, 1u);
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EXPECT_EQ(e->source.range.begin.column, 3u);
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EXPECT_EQ(e->source.range.end.line, 1u);
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EXPECT_EQ(e->source.range.end.column, 5u);
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ASSERT_TRUE(e->Is<ast::BinaryExpression>());
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auto* rel = e->As<ast::BinaryExpression>();
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EXPECT_EQ(ast::BinaryOp::kLogicalAnd, rel->op);
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ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
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auto* ident = rel->lhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a"));
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ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
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ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
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}
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TEST_F(ParserImplTest, Expression_And_Parses_Multple) {
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auto p = parser("a && true && b");
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auto e = p->expression();
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EXPECT_TRUE(e.matched);
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EXPECT_FALSE(e.errored);
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EXPECT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e.value, nullptr);
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ASSERT_TRUE(e->Is<ast::BinaryExpression>());
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// lhs: (a && true)
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// rhs: b
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auto* rel = e->As<ast::BinaryExpression>();
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EXPECT_EQ(ast::BinaryOp::kLogicalAnd, rel->op);
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ASSERT_TRUE(rel->rhs->Is<ast::IdentifierExpression>());
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auto* ident = rel->rhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("b"));
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ASSERT_TRUE(rel->lhs->Is<ast::BinaryExpression>());
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// lhs: a
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// rhs: true
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rel = rel->lhs->As<ast::BinaryExpression>();
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ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
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ident = rel->lhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a"));
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ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>());
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ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value);
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}
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TEST_F(ParserImplTest, Expression_And_InvalidRHS) {
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auto p = parser("true && if (a) {}");
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auto e = p->expression();
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EXPECT_FALSE(e.matched);
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EXPECT_TRUE(e.errored);
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EXPECT_EQ(e.value, nullptr);
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EXPECT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:9: unable to parse right side of && expression");
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}
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TEST_F(ParserImplTest, Expression_Mixing_OrWithAnd) {
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auto p = parser("a && true || b");
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auto e = p->expression();
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EXPECT_FALSE(e.matched);
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EXPECT_TRUE(e.errored);
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EXPECT_EQ(e.value, nullptr);
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EXPECT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:11: mixing '&&' and '||' requires parenthesis");
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}
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TEST_F(ParserImplTest, Expression_Mixing_AndWithOr) {
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auto p = parser("a || true && b");
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auto e = p->expression();
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EXPECT_FALSE(e.matched);
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EXPECT_TRUE(e.errored);
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EXPECT_EQ(e.value, nullptr);
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EXPECT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:11: mixing '||' and '&&' requires parenthesis");
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}
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TEST_F(ParserImplTest, Expression_Bitwise) {
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auto p = parser("a & b");
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auto e = p->expression();
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EXPECT_TRUE(e.matched);
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EXPECT_FALSE(e.errored);
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EXPECT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e.value, nullptr);
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ASSERT_TRUE(e->Is<ast::BinaryExpression>());
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auto* rel = e->As<ast::BinaryExpression>();
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EXPECT_EQ(ast::BinaryOp::kAnd, rel->op);
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ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
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auto* ident = rel->lhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a"));
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ASSERT_TRUE(rel->rhs->Is<ast::IdentifierExpression>());
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ident = rel->rhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("b"));
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}
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TEST_F(ParserImplTest, Expression_Relational) {
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auto p = parser("a <= b");
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auto e = p->expression();
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EXPECT_TRUE(e.matched);
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EXPECT_FALSE(e.errored);
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EXPECT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e.value, nullptr);
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ASSERT_TRUE(e->Is<ast::BinaryExpression>());
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auto* rel = e->As<ast::BinaryExpression>();
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EXPECT_EQ(ast::BinaryOp::kLessThanEqual, rel->op);
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ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>());
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auto* ident = rel->lhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a"));
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ASSERT_TRUE(rel->rhs->Is<ast::IdentifierExpression>());
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ident = rel->rhs->As<ast::IdentifierExpression>();
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EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("b"));
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}
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TEST_F(ParserImplTest, Expression_InvalidUnary) {
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auto p = parser("!if || true");
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auto e = p->expression();
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EXPECT_FALSE(e.matched);
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EXPECT_TRUE(e.errored);
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EXPECT_EQ(e.value, nullptr);
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EXPECT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:2: unable to parse right side of ! expression");
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}
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TEST_F(ParserImplTest, Expression_InvalidBitwise) {
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auto p = parser("a & if");
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auto e = p->expression();
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EXPECT_FALSE(e.matched);
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EXPECT_TRUE(e.errored);
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EXPECT_EQ(e.value, nullptr);
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EXPECT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:5: unable to parse right side of & expression");
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}
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TEST_F(ParserImplTest, Expression_InvalidRelational) {
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auto p = parser("a <= if");
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auto e = p->expression();
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EXPECT_FALSE(e.matched);
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EXPECT_TRUE(e.errored);
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EXPECT_EQ(e.value, nullptr);
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EXPECT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:6: unable to parse right side of <= expression");
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}
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} // namespace
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} // namespace tint::reader::wgsl
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