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117 lines
2.6 KiB
C++
117 lines
2.6 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#ifndef EXECUTABLE_SEMANTICS_AST_EXPRESSION_H_
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#define EXECUTABLE_SEMANTICS_AST_EXPRESSION_H_
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#include <string>
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#include <vector>
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namespace Carbon {
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enum class ExpressionKind {
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AutoT,
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BoolT,
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Boolean,
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Call,
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FunctionT,
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GetField,
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Index,
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IntT,
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Integer,
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PatternVariable,
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PrimitiveOp,
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Tuple,
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TypeT,
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Variable,
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};
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enum class Operator {
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Add,
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And,
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Eq,
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Neg,
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Not,
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Or,
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Sub,
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};
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struct Expression {
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int line_num;
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ExpressionKind tag;
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union {
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struct {
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std::string* name;
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} variable;
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struct {
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Expression* aggregate;
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std::string* field;
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} get_field;
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struct {
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Expression* aggregate;
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Expression* offset;
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} index;
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struct {
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std::string* name;
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Expression* type;
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} pattern_variable;
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int integer;
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bool boolean;
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struct {
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std::vector<std::pair<std::string, Expression*>>* fields;
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} tuple;
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struct {
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Operator op;
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std::vector<Expression*>* arguments;
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} primitive_op;
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struct {
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Expression* function;
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Expression* argument;
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} call;
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struct {
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Expression* parameter;
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Expression* return_type;
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} function_type;
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} u;
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};
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auto MakeVar(int line_num, std::string var) -> Expression*;
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auto MakeVarPat(int line_num, std::string var, Expression* type) -> Expression*;
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auto MakeInt(int line_num, int i) -> Expression*;
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auto MakeBool(int line_num, bool b) -> Expression*;
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auto MakeOp(int line_num, Operator op, std::vector<Expression*>* args)
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-> Expression*;
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auto MakeUnOp(int line_num, enum Operator op, Expression* arg) -> Expression*;
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auto MakeBinOp(int line_num, enum Operator op, Expression* arg1,
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Expression* arg2) -> Expression*;
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auto MakeCall(int line_num, Expression* fun, Expression* arg) -> Expression*;
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auto MakeGetField(int line_num, Expression* exp, std::string field)
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-> Expression*;
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auto MakeTuple(int line_num,
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std::vector<std::pair<std::string, Expression*>>* args)
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-> Expression*;
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auto MakeIndex(int line_num, Expression* exp, Expression* i) -> Expression*;
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auto MakeTypeType(int line_num) -> Expression*;
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auto MakeIntType(int line_num) -> Expression*;
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auto MakeBoolType(int line_num) -> Expression*;
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auto MakeFunType(int line_num, Expression* param, Expression* ret)
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-> Expression*;
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auto MakeAutoType(int line_num) -> Expression*;
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void PrintExp(const Expression* exp);
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} // namespace Carbon
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#endif // EXECUTABLE_SEMANTICS_AST_EXPRESSION_H_
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