316 lines
9.6 KiB
C++
316 lines
9.6 KiB
C++
// Copyright 2021 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/resolver/resolver.h"
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#include "gmock/gmock.h"
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#include "src/ast/call_statement.h"
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#include "src/resolver/resolver_test_helper.h"
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namespace tint {
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namespace resolver {
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namespace {
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using ResolverCallValidationTest = ResolverTest;
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TEST_F(ResolverCallValidationTest, Recursive_Invalid) {
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// fn main() {main(); }
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SetSource(Source::Location{12, 34});
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auto* call_expr = Call("main");
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ast::VariableList params0;
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Func("main", params0, ty.void_(),
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ast::StatementList{
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create<ast::CallStatement>(call_expr),
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},
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ast::DecorationList{
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Stage(ast::PipelineStage::kVertex),
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});
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(),
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"12:34 error: recursion is not permitted. 'main' attempted to call "
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"itself.");
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}
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TEST_F(ResolverCallValidationTest, Undeclared_Invalid) {
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// fn main() {func(); return; }
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// fn func() { return; }
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SetSource(Source::Location{12, 34});
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auto* call_expr = Call("func");
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ast::VariableList params0;
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Func("main", params0, ty.f32(),
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ast::StatementList{
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create<ast::CallStatement>(call_expr),
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Return(),
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},
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ast::DecorationList{});
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Func("func", params0, ty.f32(),
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ast::StatementList{
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Return(),
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},
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ast::DecorationList{});
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(), "12:34 error: unable to find called function: func");
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}
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TEST_F(ResolverCallValidationTest, TooFewArgs) {
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Func("foo", {Param(Sym(), ty.i32()), Param(Sym(), ty.f32())}, ty.void_(),
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{Return()});
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auto* call = Call(Source{{12, 34}}, "foo", 1);
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WrapInFunction(call);
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(
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r()->error(),
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"12:34 error: too few arguments in call to 'foo', expected 2, got 1");
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}
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TEST_F(ResolverCallValidationTest, TooManyArgs) {
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Func("foo", {Param(Sym(), ty.i32()), Param(Sym(), ty.f32())}, ty.void_(),
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{Return()});
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auto* call = Call(Source{{12, 34}}, "foo", 1, 1.0f, 1.0f);
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WrapInFunction(call);
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(
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r()->error(),
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"12:34 error: too many arguments in call to 'foo', expected 2, got 3");
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}
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TEST_F(ResolverCallValidationTest, MismatchedArgs) {
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Func("foo", {Param(Sym(), ty.i32()), Param(Sym(), ty.f32())}, ty.void_(),
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{Return()});
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auto* call = Call("foo", Expr(Source{{12, 34}}, true), 1.0f);
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WrapInFunction(call);
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(),
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"12:34 error: type mismatch for argument 1 in call to 'foo', "
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"expected 'i32', got 'bool'");
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}
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TEST_F(ResolverCallValidationTest, UnusedRetval) {
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// fn main() {func(); return; }
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// fn func() { return; }
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Func("func", {}, ty.f32(), {Return(Expr(1.0f))}, {});
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Func("main", {}, ty.f32(),
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ast::StatementList{
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create<ast::CallStatement>(Source{{12, 34}}, Call("func")),
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Return(),
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},
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{});
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(),
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"12:34 error: result of called function was not used. If this was "
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"intentional wrap the function call in ignore()");
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}
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TEST_F(ResolverCallValidationTest, PointerArgument_VariableIdentExpr) {
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// fn foo(p: ptr<function, i32>) {}
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// fn main() {
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// var z: i32 = 1;
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// foo(&z);
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// }
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auto* param = Param("p", ty.pointer<i32>(ast::StorageClass::kFunction));
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Func("foo", {param}, ty.void_(), {});
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Func("main", {}, ty.void_(),
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ast::StatementList{
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Decl(Var("z", ty.i32(), Expr(1))),
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create<ast::CallStatement>(
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Call("foo", AddressOf(Source{{12, 34}}, Expr("z")))),
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});
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EXPECT_TRUE(r()->Resolve()) << r()->error();
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}
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TEST_F(ResolverCallValidationTest, PointerArgument_ConstIdentExpr) {
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// fn foo(p: ptr<function, i32>) {}
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// fn main() {
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// let z: i32 = 1;
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// foo(&z);
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// }
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auto* param = Param("p", ty.pointer<i32>(ast::StorageClass::kFunction));
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Func("foo", {param}, ty.void_(), {});
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Func("main", {}, ty.void_(),
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ast::StatementList{
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Decl(Const("z", ty.i32(), Expr(1))),
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create<ast::CallStatement>(
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Call("foo", AddressOf(Expr(Source{{12, 34}}, "z")))),
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});
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(), "12:34 error: cannot take the address of expression");
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}
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TEST_F(ResolverCallValidationTest, PointerArgument_NotIdentExprVar) {
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// struct S { m: i32; };
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// fn foo(p: ptr<function, i32>) {}
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// fn main() {
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// var v: S;
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// foo(&v.m);
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// }
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auto* S = Structure("S", {Member("m", ty.i32())});
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auto* param = Param("p", ty.pointer<i32>(ast::StorageClass::kFunction));
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Func("foo", {param}, ty.void_(), {});
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Func("main", {}, ty.void_(),
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ast::StatementList{
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Decl(Var("v", ty.Of(S))),
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create<ast::CallStatement>(Call(
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"foo", AddressOf(Source{{12, 34}}, MemberAccessor("v", "m")))),
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});
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(),
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"12:34 error: expected an address-of expression of a variable "
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"identifier expression or a function parameter");
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}
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TEST_F(ResolverCallValidationTest, PointerArgument_AddressOfMemberAccessor) {
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// struct S { m: i32; };
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// fn foo(p: ptr<function, i32>) {}
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// fn main() {
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// let v: S = S();
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// foo(&v.m);
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// }
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auto* S = Structure("S", {Member("m", ty.i32())});
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auto* param = Param("p", ty.pointer<i32>(ast::StorageClass::kFunction));
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Func("foo", {param}, ty.void_(), {});
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Func("main", {}, ty.void_(),
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ast::StatementList{
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Decl(Const("v", ty.Of(S), Construct(ty.Of(S)))),
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create<ast::CallStatement>(Call(
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"foo",
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AddressOf(Expr(Source{{12, 34}}, MemberAccessor("v", "m"))))),
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});
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(), "12:34 error: cannot take the address of expression");
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}
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TEST_F(ResolverCallValidationTest, PointerArgument_FunctionParam) {
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// fn foo(p: ptr<function, i32>) {}
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// fn bar(p: ptr<function, i32>) {
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// foo(p);
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// }
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Func("foo", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))},
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ty.void_(), {});
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Func("bar", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))},
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ty.void_(),
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ast::StatementList{create<ast::CallStatement>(Call("foo", Expr("p")))});
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EXPECT_TRUE(r()->Resolve()) << r()->error();
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}
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TEST_F(ResolverCallValidationTest, PointerArgument_FunctionParamWithMain) {
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// fn foo(p: ptr<function, i32>) {}
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// fn bar(p: ptr<function, i32>) {
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// foo(p);
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// }
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// [[stage(fragment)]]
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// fn main() {
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// var v: i32;
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// bar(&v);
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// }
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Func("foo", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))},
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ty.void_(), {});
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Func("bar", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))},
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ty.void_(),
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ast::StatementList{create<ast::CallStatement>(Call("foo", Expr("p")))});
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(Var("v", ty.i32(), Expr(1))),
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create<ast::CallStatement>(Call("foo", AddressOf(Expr("v")))),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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EXPECT_TRUE(r()->Resolve()) << r()->error();
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}
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TEST_F(ResolverCallValidationTest, LetPointer) {
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// fn x(p : ptr<function, i32>) -> i32 {}
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// [[stage(fragment)]]
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// fn main() {
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// var v: i32;
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// let p: ptr<function, i32> = &v;
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// var c: i32 = x(p);
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// }
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Func("x", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))},
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ty.void_(), {});
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auto* v = Var("v", ty.i32());
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auto* p = Const("p", ty.pointer(ty.i32(), ast::StorageClass::kFunction),
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AddressOf(v));
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auto* c = Var("c", ty.i32(), ast::StorageClass::kNone,
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Call("x", Expr(Source{{12, 34}}, p)));
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(v),
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Decl(p),
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Decl(c),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(),
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"12:34 error: expected an address-of expression of a variable "
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"identifier expression or a function parameter");
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}
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TEST_F(ResolverCallValidationTest, LetPointerPrivate) {
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// let p: ptr<private, i32> = &v;
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// fn foo(p : ptr<private, i32>) -> i32 {}
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// var v: i32;
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// [[stage(fragment)]]
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// fn main() {
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// var c: i32 = foo(p);
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// }
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Func("foo", {Param("p", ty.pointer<i32>(ast::StorageClass::kPrivate))},
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ty.void_(), {});
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auto* v = Global("v", ty.i32(), ast::StorageClass::kPrivate);
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auto* p = Const("p", ty.pointer(ty.i32(), ast::StorageClass::kPrivate),
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AddressOf(v));
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auto* c = Var("c", ty.i32(), ast::StorageClass::kNone,
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Call("foo", Expr(Source{{12, 34}}, p)));
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Func("main", ast::VariableList{}, ty.void_(),
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{
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Decl(p),
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Decl(c),
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},
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{
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Stage(ast::PipelineStage::kFragment),
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});
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EXPECT_FALSE(r()->Resolve());
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EXPECT_EQ(r()->error(),
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"12:34 error: expected an address-of expression of a variable "
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"identifier expression or a function parameter");
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}
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} // namespace
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} // namespace resolver
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} // namespace tint
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