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// Copyright 2021 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/resolver/resolver.h"
#include "gmock/gmock.h"
#include "src/tint/ast/call_statement.h"
#include "src/tint/resolver/resolver_test_helper.h"
using namespace tint::number_suffixes; // NOLINT
namespace tint::resolver {
namespace {
using ResolverCallValidationTest = ResolverTest;
TEST_F(ResolverCallValidationTest, TooFewArgs) {
Func("foo",
utils::Vector{
Param(Sym(), ty.i32()),
Param(Sym(), ty.f32()),
},
ty.void_(),
utils::Vector{
Return(),
});
auto* call = Call(Source{{12, 34}}, "foo", 1_i);
WrapInFunction(call);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: too few arguments in call to 'foo', expected 2, got 1");
}
TEST_F(ResolverCallValidationTest, TooManyArgs) {
Func("foo",
utils::Vector{
Param(Sym(), ty.i32()),
Param(Sym(), ty.f32()),
},
ty.void_(),
utils::Vector{
Return(),
});
auto* call = Call(Source{{12, 34}}, "foo", 1_i, 1_f, 1_f);
WrapInFunction(call);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: too many arguments in call to 'foo', expected 2, got 3");
}
TEST_F(ResolverCallValidationTest, MismatchedArgs) {
Func("foo",
utils::Vector{
Param(Sym(), ty.i32()),
Param(Sym(), ty.f32()),
},
ty.void_(),
utils::Vector{
Return(),
});
auto* call = Call("foo", Expr(Source{{12, 34}}, true), 1_f);
WrapInFunction(call);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: type mismatch for argument 1 in call to 'foo', "
"expected 'i32', got 'bool'");
}
TEST_F(ResolverCallValidationTest, UnusedRetval) {
// fn func() -> f32 { return 1.0; }
// fn main() {func(); return; }
Func("func", utils::Empty, ty.f32(),
utils::Vector{
Return(Expr(1_f)),
},
utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
CallStmt(Source{{12, 34}}, Call("func")),
Return(),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverCallValidationTest, PointerArgument_VariableIdentExpr) {
// fn foo(p: ptr<function, i32>) {}
// fn main() {
// var z: i32 = 1i;
// foo(&z);
// }
auto* param = Param("p", ty.pointer<i32>(type::AddressSpace::kFunction));
Func("foo", utils::Vector{param}, ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("z", ty.i32(), Expr(1_i))),
CallStmt(Call("foo", AddressOf(Source{{12, 34}}, Expr("z")))),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverCallValidationTest, PointerArgument_LetIdentExpr) {
// fn foo(p: ptr<function, i32>) {}
// fn main() {
// let z: i32 = 1i;
// foo(&z);
// }
auto* param = Param("p", ty.pointer<i32>(type::AddressSpace::kFunction));
Func("foo", utils::Vector{param}, ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Let("z", ty.i32(), Expr(1_i))),
CallStmt(Call("foo", AddressOf(Expr(Source{{12, 34}}, "z")))),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: cannot take the address of expression");
}
TEST_F(ResolverCallValidationTest, PointerArgument_AddressOfFunctionMember) {
// struct S { m: i32; };
// fn foo(p: ptr<function, i32>) {}
// fn main() {
// var v : S;
// foo(&v.m);
// }
auto* S = Structure("S", utils::Vector{
Member("m", ty.i32()),
});
auto* param = Param("p", ty.pointer<i32>(type::AddressSpace::kFunction));
Func("foo", utils::Vector{param}, ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.Of(S))),
CallStmt(Call("foo", AddressOf(Source{{12, 34}}, MemberAccessor("v", "m")))),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: arguments of pointer type must not point to a subset of the "
"originating variable");
}
TEST_F(ResolverCallValidationTest,
PointerArgument_AddressOfFunctionMember_WithFullPtrParametersExt) {
// enable chromium_experimental_full_ptr_parameters;
// struct S { m: i32; };
// fn foo(p: ptr<function, i32>) {}
// fn main() {
// var v : S;
// foo(&v.m);
// }
Enable(ast::Extension::kChromiumExperimentalFullPtrParameters);
auto* S = Structure("S", utils::Vector{
Member("m", ty.i32()),
});
auto* param = Param("p", ty.pointer<i32>(type::AddressSpace::kFunction));
Func("foo", utils::Vector{param}, ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.Of(S))),
CallStmt(Call("foo", AddressOf(Source{{12, 34}}, MemberAccessor("v", "m")))),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverCallValidationTest, PointerArgument_AddressOfLetMember) {
// struct S { m: i32; };
// fn foo(p: ptr<function, i32>) {}
// fn main() {
// let v: S = S();
// foo(&v.m);
// }
auto* S = Structure("S", utils::Vector{
Member("m", ty.i32()),
});
auto* param = Param("p", ty.pointer<i32>(type::AddressSpace::kFunction));
Func("foo", utils::Vector{param}, ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Let("v", ty.Of(S), Construct(ty.Of(S)))),
CallStmt(Call("foo", AddressOf(MemberAccessor(Source{{12, 34}}, "v", "m")))),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: cannot take the address of expression");
}
TEST_F(ResolverCallValidationTest, PointerArgument_FunctionParam) {
// fn foo(p: ptr<function, i32>) {}
// fn bar(p: ptr<function, i32>) {
// foo(p);
// }
Func("foo",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(), utils::Empty);
Func("bar",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(),
utils::Vector{
CallStmt(Call("foo", Expr("p"))),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverCallValidationTest, PointerArgument_FunctionParamWithMain) {
// fn foo(p: ptr<function, i32>) {}
// fn bar(p: ptr<function, i32>) {
// foo(p);
// }
// @fragment
// fn main() {
// var v: i32;
// bar(&v);
// }
Func("foo",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(), utils::Empty);
Func("bar",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(),
utils::Vector{
CallStmt(Call("foo", "p")),
});
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.i32(), Expr(1_i))),
CallStmt(Call("foo", AddressOf("v"))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverCallValidationTest, LetPointer) {
// fn foo(p : ptr<function, i32>) {}
// @fragment
// fn main() {
// var v: i32;
// let p: ptr<function, i32> = &v;
// x(p);
// }
Func("x",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.i32())),
Decl(Let("p", ty.pointer(ty.i32(), type::AddressSpace::kFunction), AddressOf("v"))),
CallStmt(Call("x", "p")),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverCallValidationTest, LetPointerPrivate) {
// fn foo(p : ptr<private, i32>) {}
// var v : i32;
// @fragment
// fn main() {
// let p : ptr<private, i32> = &v;
// foo(p);
// }
Func("foo",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kPrivate)),
},
ty.void_(), utils::Empty);
GlobalVar("v", ty.i32(), type::AddressSpace::kPrivate);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Let("p", ty.pointer(ty.i32(), type::AddressSpace::kPrivate), AddressOf("v"))),
CallStmt(Call("foo", Expr(Source{{12, 34}}, "p"))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverCallValidationTest, LetPointer_NotWholeVar) {
// fn foo(p : ptr<function, i32>) {}
// @fragment
// fn main() {
// var v: array<i32, 4>;
// let p: ptr<function, i32> = &(v[0]);
// x(p);
// }
Func("foo",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.array<i32, 4>())),
Decl(Let("p", ty.pointer(ty.i32(), type::AddressSpace::kFunction),
AddressOf(IndexAccessor("v", 0_a)))),
CallStmt(Call("foo", Expr(Source{{12, 34}}, "p"))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: arguments of pointer type must not point to a subset of the "
"originating variable");
}
TEST_F(ResolverCallValidationTest, LetPointer_NotWholeVar_WithFullPtrParametersExt) {
// enable chromium_experimental_full_ptr_parameters;
// fn foo(p : ptr<function, i32>) {}
// @fragment
// fn main() {
// var v: array<i32, 4>;
// let p: ptr<function, i32> = &(v[0]);
// x(p);
// }
Enable(ast::Extension::kChromiumExperimentalFullPtrParameters);
Func("foo",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.array<i32, 4>())),
Decl(Let("p", ty.pointer(ty.i32(), type::AddressSpace::kFunction),
AddressOf(IndexAccessor("v", 0_a)))),
CallStmt(Call("foo", Expr(Source{{12, 34}}, "p"))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_TRUE(r()->Resolve());
}
TEST_F(ResolverCallValidationTest, ComplexPointerChain) {
// fn foo(p : ptr<function, array<i32, 4>>) {}
// @fragment
// fn main() {
// var v: array<i32, 4>;
// let p1 = &v;
// let p2 = p1;
// let p3 = &*p2;
// foo(&*p);
// }
Func("foo",
utils::Vector{
Param("p", ty.pointer(ty.array<i32, 4>(), type::AddressSpace::kFunction)),
},
ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.array<i32, 4>())),
Decl(Let("p1", AddressOf("v"))),
Decl(Let("p2", Expr("p1"))),
Decl(Let("p3", AddressOf(Deref("p2")))),
CallStmt(Call("foo", AddressOf(Source{{12, 34}}, Deref("p3")))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverCallValidationTest, ComplexPointerChain_NotWholeVar) {
// fn foo(p : ptr<function, i32>) {}
// @fragment
// fn main() {
// var v: array<i32, 4>;
// let p1 = &v;
// let p2 = p1;
// let p3 = &(*p2)[0];
// foo(&*p);
// }
Func("foo",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.array<i32, 4>())),
Decl(Let("p1", AddressOf("v"))),
Decl(Let("p2", Expr("p1"))),
Decl(Let("p3", AddressOf(IndexAccessor(Deref("p2"), 0_a)))),
CallStmt(Call("foo", AddressOf(Source{{12, 34}}, Deref("p3")))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: arguments of pointer type must not point to a subset of the "
"originating variable");
}
TEST_F(ResolverCallValidationTest, ComplexPointerChain_NotWholeVar_WithFullPtrParametersExt) {
// enable chromium_experimental_full_ptr_parameters;
// fn foo(p : ptr<function, i32>) {}
// @fragment
// fn main() {
// var v: array<i32, 4>;
// let p1 = &v;
// let p2 = p1;
// let p3 = &(*p2)[0];
// foo(&*p);
// }
Enable(ast::Extension::kChromiumExperimentalFullPtrParameters);
Func("foo",
utils::Vector{
Param("p", ty.pointer<i32>(type::AddressSpace::kFunction)),
},
ty.void_(), utils::Empty);
Func("main", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("v", ty.array<i32, 4>())),
Decl(Let("p1", AddressOf("v"))),
Decl(Let("p2", Expr("p1"))),
Decl(Let("p3", AddressOf(IndexAccessor(Deref("p2"), 0_a)))),
CallStmt(Call("foo", AddressOf(Source{{12, 34}}, Deref("p3")))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_TRUE(r()->Resolve());
}
TEST_F(ResolverCallValidationTest, CallVariable) {
// var v : i32;
// fn f() {
// v();
// }
GlobalVar("v", ty.i32(), type::AddressSpace::kPrivate);
Func("f", utils::Empty, ty.void_(),
utils::Vector{
CallStmt(Call(Source{{12, 34}}, "v")),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(error: cannot call variable 'v'
note: 'v' declared here)");
}
TEST_F(ResolverCallValidationTest, CallVariableShadowsFunction) {
// fn x() {}
// fn f() {
// var x : i32;
// x();
// }
Func("x", utils::Empty, ty.void_(), utils::Empty);
Func("f", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var(Source{{56, 78}}, "x", ty.i32())),
CallStmt(Call(Source{{12, 34}}, "x")),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(error: cannot call variable 'x'
56:78 note: 'x' declared here)");
}
} // namespace
} // namespace tint::resolver