80 lines
2.9 KiB
C++
80 lines
2.9 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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#ifndef SRC_AST_DISABLE_VALIDATION_DECORATION_H_
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#define SRC_AST_DISABLE_VALIDATION_DECORATION_H_
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#include <string>
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#include "src/ast/internal_decoration.h"
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namespace tint {
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namespace ast {
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/// Enumerator of validation features that can be disabled with a
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/// DisableValidationDecoration decoration.
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enum class DisabledValidation {
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/// When applied to a function, the validator will not complain there is no
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/// body to a function.
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kFunctionHasNoBody,
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/// When applied to a module-scoped variable, the validator will not complain
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/// if two resource variables have the same binding points.
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kBindingPointCollision,
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/// When applied to a variable, the validator will not complain about the
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/// declared storage class.
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kIgnoreStorageClass,
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/// When applied to an entry-point function parameter, the validator will not
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/// check for entry IO decorations.
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kEntryPointParameter,
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/// When applied to a function parameter, the validator will not
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/// check if parameter type is constructible
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kIgnoreConstructibleFunctionParameter,
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};
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/// An internal decoration used to tell the validator to ignore specific
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/// violations. Typically generated by transforms that need to produce ASTs that
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/// would otherwise cause validation errors.
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class DisableValidationDecoration
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: public Castable<DisableValidationDecoration, InternalDecoration> {
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public:
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/// Constructor
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/// @param program_id the identifier of the program that owns this node
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/// @param validation the validation to disable
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explicit DisableValidationDecoration(ProgramID program_id,
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DisabledValidation validation);
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/// Destructor
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~DisableValidationDecoration() override;
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/// @return the validation that this decoration disables
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DisabledValidation Validation() const { return validation_; }
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/// @return a short description of the internal decoration which will be
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/// displayed in WGSL as `[[internal(<name>)]]` (but is not parsable).
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std::string InternalName() const override;
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/// Performs a deep clone of this object using the CloneContext `ctx`.
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/// @param ctx the clone context
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/// @return the newly cloned object
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DisableValidationDecoration* Clone(CloneContext* ctx) const override;
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private:
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DisabledValidation const validation_;
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};
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_DISABLE_VALIDATION_DECORATION_H_
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