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Change-Id: I10dd2feeaeb86a1ee7769d2bfd172e49c2805cb3 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/97843 Reviewed-by: Dan Sinclair <dsinclair@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
119 lines
4.0 KiB
C++
119 lines
4.0 KiB
C++
// Copyright 2020 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_TINT_AST_FUNCTION_H_
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#define SRC_TINT_AST_FUNCTION_H_
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#include <string>
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#include <tuple>
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#include <utility>
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#include <vector>
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#include "src/tint/ast/attribute.h"
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#include "src/tint/ast/binding_attribute.h"
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#include "src/tint/ast/block_statement.h"
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#include "src/tint/ast/builtin_attribute.h"
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#include "src/tint/ast/group_attribute.h"
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#include "src/tint/ast/location_attribute.h"
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#include "src/tint/ast/parameter.h"
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#include "src/tint/ast/pipeline_stage.h"
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namespace tint::ast {
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/// A Function statement.
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class Function final : public Castable<Function, Node> {
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public:
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/// Create a function
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/// @param pid the identifier of the program that owns this node
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/// @param nid the unique node identifier
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/// @param source the variable source
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/// @param symbol the function symbol
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/// @param params the function parameters
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/// @param return_type the return type
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/// @param body the function body
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/// @param attributes the function attributes
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/// @param return_type_attributes the return type attributes
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Function(ProgramID pid,
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NodeID nid,
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const Source& source,
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Symbol symbol,
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utils::VectorRef<const Parameter*> params,
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const Type* return_type,
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const BlockStatement* body,
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utils::VectorRef<const Attribute*> attributes,
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utils::VectorRef<const Attribute*> return_type_attributes);
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/// Move constructor
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Function(Function&&);
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~Function() override;
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/// @returns the functions pipeline stage or None if not set
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ast::PipelineStage PipelineStage() const;
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/// @returns true if this function is an entry point
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bool IsEntryPoint() const { return PipelineStage() != PipelineStage::kNone; }
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/// Clones this node and all transitive child nodes using the `CloneContext`
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/// `ctx`.
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/// @param ctx the clone context
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/// @return the newly cloned node
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const Function* Clone(CloneContext* ctx) const override;
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/// The function symbol
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const Symbol symbol;
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/// The function params
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const utils::Vector<const Parameter*, 8> params;
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/// The function return type
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const Type* const return_type;
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/// The function body
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const BlockStatement* const body;
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/// The attributes attached to this function
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const utils::Vector<const Attribute*, 2> attributes;
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/// The attributes attached to the function return type.
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const utils::Vector<const Attribute*, 2> return_type_attributes;
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};
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/// A list of functions
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class FunctionList : public utils::Vector<const Function*, 8> {
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public:
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/// Appends f to the end of the list
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/// @param f the function to append to this list
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void Add(const Function* f) { this->Push(f); }
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/// Returns the function with the given name
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/// @param sym the function symbol to search for
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/// @returns the associated function or nullptr if none exists
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const Function* Find(Symbol sym) const;
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/// Returns the function with the given name
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/// @param sym the function symbol to search for
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/// @param stage the pipeline stage
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/// @returns the associated function or nullptr if none exists
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const Function* Find(Symbol sym, PipelineStage stage) const;
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/// @param stage the pipeline stage
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/// @returns true if the Builder contains an entrypoint function with
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/// the given stage
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bool HasStage(PipelineStage stage) const;
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};
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} // namespace tint::ast
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#endif // SRC_TINT_AST_FUNCTION_H_
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