| // Copyright 2022 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" |
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| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <utility> |
| |
| #include "gtest/gtest-spi.h" |
| #include "src/tint/lang/wgsl/ast/transform/get_insertion_point.h" |
| #include "src/tint/lang/wgsl/ast/transform/helper_test.h" |
| #include "src/tint/lang/wgsl/program/clone_context.h" |
| #include "src/tint/lang/wgsl/program/program_builder.h" |
| #include "src/tint/lang/wgsl/resolver/resolve.h" |
| #include "src/tint/utils/ice/ice.h" |
| |
| using namespace tint::core::number_suffixes; // NOLINT |
| |
| namespace tint::ast::transform { |
| namespace { |
| |
| using GetInsertionPointTest = ::testing::Test; |
| |
| TEST_F(GetInsertionPointTest, Block) { |
| // fn f() { |
| // var a = 1i; |
| // } |
| ProgramBuilder b; |
| auto* expr = b.Expr(1_i); |
| auto* var = b.Decl(b.Var("a", expr)); |
| auto* block = b.Block(var); |
| b.Func("f", tint::Empty, b.ty.void_(), Vector{block}); |
| |
| Program original(resolver::Resolve(b)); |
| ProgramBuilder cloned_b; |
| program::CloneContext ctx(&cloned_b, &original); |
| |
| // Can insert in block containing the variable, above or below the input statement. |
| auto ip = utils::GetInsertionPoint(ctx, var); |
| ASSERT_EQ(ip.first->Declaration(), block); |
| ASSERT_EQ(ip.second, var); |
| } |
| |
| TEST_F(GetInsertionPointTest, ForLoopInit) { |
| // fn f() { |
| // for(var a = 1i; true; ) { |
| // } |
| // } |
| ProgramBuilder b; |
| auto* expr = b.Expr(1_i); |
| auto* var = b.Decl(b.Var("a", expr)); |
| auto* fl = b.For(var, b.Expr(true), nullptr, b.Block()); |
| auto* func_block = b.Block(fl); |
| b.Func("f", tint::Empty, b.ty.void_(), Vector{func_block}); |
| |
| Program original(resolver::Resolve(b)); |
| ProgramBuilder cloned_b; |
| program::CloneContext ctx(&cloned_b, &original); |
| |
| // Can insert in block containing for-loop above the for-loop itself. |
| auto ip = utils::GetInsertionPoint(ctx, var); |
| ASSERT_EQ(ip.first->Declaration(), func_block); |
| ASSERT_EQ(ip.second, fl); |
| } |
| |
| TEST_F(GetInsertionPointTest, ForLoopCont_Invalid) { |
| // fn f() { |
| // for(; true; var a = 1i) { |
| // } |
| // } |
| ProgramBuilder b; |
| auto* expr = b.Expr(1_i); |
| auto* var = b.Decl(b.Var("a", expr)); |
| auto* s = b.For({}, b.Expr(true), var, b.Block()); |
| b.Func("f", tint::Empty, b.ty.void_(), Vector{s}); |
| |
| Program original(resolver::Resolve(b)); |
| ProgramBuilder cloned_b; |
| program::CloneContext ctx(&cloned_b, &original); |
| |
| // Can't insert before/after for loop continue statement (would ned to be converted to loop). |
| auto ip = utils::GetInsertionPoint(ctx, var); |
| ASSERT_EQ(ip.first, nullptr); |
| ASSERT_EQ(ip.second, nullptr); |
| } |
| |
| } // namespace |
| } // namespace tint::ast::transform |