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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>
207 lines
8.8 KiB
C++
207 lines
8.8 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_WRITER_WGSL_GENERATOR_IMPL_H_
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#define SRC_WRITER_WGSL_GENERATOR_IMPL_H_
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#include <string>
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#include "src/ast/assignment_statement.h"
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#include "src/ast/binary_expression.h"
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#include "src/ast/bitcast_expression.h"
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#include "src/ast/break_statement.h"
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#include "src/ast/continue_statement.h"
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#include "src/ast/discard_statement.h"
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#include "src/ast/fallthrough_statement.h"
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#include "src/ast/for_loop_statement.h"
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#include "src/ast/if_statement.h"
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#include "src/ast/index_accessor_expression.h"
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#include "src/ast/loop_statement.h"
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#include "src/ast/member_accessor_expression.h"
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#include "src/ast/return_statement.h"
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#include "src/ast/switch_statement.h"
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#include "src/ast/unary_op_expression.h"
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#include "src/program.h"
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#include "src/sem/storage_texture_type.h"
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#include "src/sem/struct.h"
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#include "src/writer/text_generator.h"
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namespace tint {
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namespace writer {
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namespace wgsl {
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/// Implementation class for WGSL generator
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class GeneratorImpl : public TextGenerator {
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public:
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/// Constructor
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/// @param program the program
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explicit GeneratorImpl(const Program* program);
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~GeneratorImpl();
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/// Generates the result data
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/// @returns true on successful generation; false otherwise
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bool Generate();
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/// Handles generating a declared type
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/// @param ty the declared type to generate
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/// @returns true if the declared type was emitted
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bool EmitTypeDecl(const ast::TypeDecl* ty);
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/// Handles an index accessor expression
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/// @param out the output of the expression stream
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/// @param expr the expression to emit
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/// @returns true if the index accessor was emitted
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bool EmitIndexAccessor(std::ostream& out,
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const ast::IndexAccessorExpression* expr);
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/// Handles an assignment statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was emitted successfully
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bool EmitAssign(const ast::AssignmentStatement* stmt);
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/// Handles generating a binary expression
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/// @param out the output of the expression stream
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/// @param expr the binary expression
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/// @returns true if the expression was emitted, false otherwise
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bool EmitBinary(std::ostream& out, const ast::BinaryExpression* expr);
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/// Handles generating a bitcast expression
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/// @param out the output of the expression stream
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/// @param expr the bitcast expression
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/// @returns true if the bitcast was emitted
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bool EmitBitcast(std::ostream& out, const ast::BitcastExpression* expr);
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/// Handles a block statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was emitted successfully
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bool EmitBlock(const ast::BlockStatement* stmt);
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/// Handles a break statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was emitted successfully
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bool EmitBreak(const ast::BreakStatement* stmt);
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/// Handles generating a call expression
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/// @param out the output of the expression stream
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/// @param expr the call expression
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/// @returns true if the call expression is emitted
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bool EmitCall(std::ostream& out, const ast::CallExpression* expr);
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/// Handles a case statement
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/// @param stmt the statement
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/// @returns true if the statment was emitted successfully
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bool EmitCase(const ast::CaseStatement* stmt);
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/// Handles generating a literal expression
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/// @param out the output of the expression stream
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/// @param expr the literal expression expression
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/// @returns true if the literal expression is emitted
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bool EmitLiteral(std::ostream& out, const ast::LiteralExpression* expr);
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/// Handles a continue statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was emitted successfully
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bool EmitContinue(const ast::ContinueStatement* stmt);
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/// Handles generate an Expression
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/// @param out the output of the expression stream
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/// @param expr the expression
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/// @returns true if the expression was emitted
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bool EmitExpression(std::ostream& out, const ast::Expression* expr);
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/// Handles generating a fallthrough statement
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/// @param stmt the fallthrough statement
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/// @returns true if the statement was successfully emitted
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bool EmitFallthrough(const ast::FallthroughStatement* stmt);
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/// Handles generating a function
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/// @param func the function to generate
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/// @returns true if the function was emitted
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bool EmitFunction(const ast::Function* func);
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/// Handles generating an identifier expression
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/// @param out the output of the expression stream
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/// @param expr the identifier expression
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/// @returns true if the identifier was emitted
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bool EmitIdentifier(std::ostream& out, const ast::IdentifierExpression* expr);
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/// Handles an if statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was successfully emitted
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bool EmitIf(const ast::IfStatement* stmt);
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/// Handles generating a discard statement
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/// @param stmt the discard statement
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/// @returns true if the statement was successfully emitted
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bool EmitDiscard(const ast::DiscardStatement* stmt);
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/// Handles a loop statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was emtited
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bool EmitLoop(const ast::LoopStatement* stmt);
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/// Handles a for-loop statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was emtited
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bool EmitForLoop(const ast::ForLoopStatement* stmt);
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/// Handles a member accessor expression
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/// @param out the output of the expression stream
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/// @param expr the member accessor expression
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/// @returns true if the member accessor was emitted
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bool EmitMemberAccessor(std::ostream& out,
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const ast::MemberAccessorExpression* expr);
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/// Handles return statements
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/// @param stmt the statement to emit
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/// @returns true if the statement was successfully emitted
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bool EmitReturn(const ast::ReturnStatement* stmt);
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/// Handles statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was emitted
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bool EmitStatement(const ast::Statement* stmt);
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/// Handles a statement list
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/// @param stmts the statements to emit
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/// @returns true if the statements were emitted
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bool EmitStatements(const ast::StatementList& stmts);
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/// Handles a statement list with an increased indentation
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/// @param stmts the statements to emit
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/// @returns true if the statements were emitted
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bool EmitStatementsWithIndent(const ast::StatementList& stmts);
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/// Handles generating a switch statement
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/// @param stmt the statement to emit
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/// @returns true if the statement was emitted
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bool EmitSwitch(const ast::SwitchStatement* stmt);
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/// Handles generating type
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/// @param out the output of the expression stream
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/// @param type the type to generate
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/// @returns true if the type is emitted
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bool EmitType(std::ostream& out, const ast::Type* type);
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/// Handles generating a struct declaration
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/// @param str the struct
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/// @returns true if the struct is emitted
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bool EmitStructType(const ast::Struct* str);
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/// Handles emitting an image format
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/// @param out the output of the expression stream
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/// @param fmt the format to generate
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/// @returns true if the format is emitted
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bool EmitImageFormat(std::ostream& out, const ast::ImageFormat fmt);
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/// Handles emitting an access control
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/// @param out the output of the expression stream
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/// @param access the access to generate
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/// @returns true if the access is emitted
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bool EmitAccess(std::ostream& out, const ast::Access access);
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/// Handles a unary op expression
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/// @param out the output of the expression stream
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/// @param expr the expression to emit
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/// @returns true if the expression was emitted
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bool EmitUnaryOp(std::ostream& out, const ast::UnaryOpExpression* expr);
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/// Handles generating a variable
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/// @param out the output of the expression stream
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/// @param var the variable to generate
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/// @returns true if the variable was emitted
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bool EmitVariable(std::ostream& out, const ast::Variable* var);
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/// Handles generating a decoration list
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/// @param out the output of the expression stream
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/// @param decos the decoration list
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/// @returns true if the decorations were emitted
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bool EmitDecorations(std::ostream& out, const ast::DecorationList& decos);
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};
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} // namespace wgsl
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} // namespace writer
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} // namespace tint
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#endif // SRC_WRITER_WGSL_GENERATOR_IMPL_H_
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