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735dca8393
Add a new 'Target' to the ast::CallExpression, which can be either an Identifier or Type. The Identifier may resolve to a Type, if the Type is a structure or alias. The Resolver now resolves the CallExpression target to one of the following sem::CallTargets: * sem::Function * sem::Intrinsic * sem::TypeConstructor * sem::TypeCast This change will allow us to remove the type tracking logic from the WGSL parser, which is required for out-of-order module scope declarations. Bug: tint:888 Bug: tint:1266 Change-Id: I696f117115a50981fd5c102a0d7764641bb755dd Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/68525 Reviewed-by: David Neto <dneto@google.com> Reviewed-by: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
85 lines
2.5 KiB
C++
85 lines
2.5 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_AST_CALL_EXPRESSION_H_
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#define SRC_AST_CALL_EXPRESSION_H_
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#include "src/ast/expression.h"
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namespace tint {
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namespace ast {
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// Forward declarations.
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class Type;
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class IdentifierExpression;
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/// A call expression - represents either a:
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/// * sem::Function
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/// * sem::Intrinsic
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/// * sem::TypeConstructor
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/// * sem::TypeConversion
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class CallExpression : public Castable<CallExpression, Expression> {
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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 source the call expression source
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/// @param name the function or type name
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/// @param args the arguments
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CallExpression(ProgramID program_id,
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const Source& source,
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const IdentifierExpression* name,
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ExpressionList args);
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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 source the call expression source
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/// @param type the type
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/// @param args the arguments
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CallExpression(ProgramID program_id,
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const Source& source,
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const Type* type,
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ExpressionList args);
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/// Move constructor
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CallExpression(CallExpression&&);
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~CallExpression() override;
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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 CallExpression* Clone(CloneContext* ctx) const override;
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/// Target is either an identifier, or a Type.
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/// One of these must be nullptr and the other a non-nullptr.
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struct Target {
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/// name is a function or intrinsic to call, or type name to construct or
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/// cast-to
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const IdentifierExpression* name = nullptr;
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/// type to construct or cast-to
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const Type* type = nullptr;
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};
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/// The target function
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const Target target;
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/// The arguments
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const ExpressionList args;
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};
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_CALL_EXPRESSION_H_
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