135 lines
2.3 KiB
D
135 lines
2.3 KiB
D
module otya.smilebasic.node;
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import otya.smilebasic.type;
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import otya.smilebasic.token;
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import std.container;
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enum NodeType
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{
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Node,
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Expression,
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Constant,
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BinaryOperator,
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Variable,
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CallFunction,
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VoidExpression,
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Statements,
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FunctionBody,
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Assign,
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CallFunctionStatement,
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Print,
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}
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abstract class Node
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{
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NodeType type;
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}
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abstract class Expression : Node
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{
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}
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class Constant : Expression
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{
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Value value;
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this(Value v)
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{
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this.type = NodeType.Constant;
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this.value = v;
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}
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}
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class BinaryOperator : Expression
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{
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Expression item1;
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TokenType operator;
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Expression item2;
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this(BinaryOperator bop)
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{
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this.type = NodeType.BinaryOperator;
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this.item1 = bop.item1;
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this.operator = bop.operator;
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this.item2 = bop.item2;
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}
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this(Expression i1)
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{
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this.type = NodeType.BinaryOperator;
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this.item1 = i1;
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}
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this(Expression i1, TokenType o, Expression i2)
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{
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this.type = NodeType.BinaryOperator;
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this.item1 = i1;
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this.operator = o;
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this.item2 = i2;
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}
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}
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class Variable : Expression
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{
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wstring name;
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this(wstring n)
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{
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this.type = NodeType.Variable;
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this.name = n;
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}
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}
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class CallFunction : Expression
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{
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wstring name;
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Expression[] args;
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this(wstring n)
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{
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this.type = NodeType.CallFunction;
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this.name = n;
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args = new Expression[0];
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}
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void addArg(Expression arg)
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{
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args ~= arg;
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}
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}
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class VoidExpression : Expression
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{
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this()
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{
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this.type = NodeType.VoidExpression;
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}
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}
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abstract class Statement : Node
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{
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}
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class Statements : Statement
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{
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Statement[] statements;
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this()
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{
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this.type = NodeType.Statements;
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}
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void addStatement(Statement statement)
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{
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statements ~= statement;
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}
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}
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enum PrintArgumentType
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{
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Expression,//exp
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LF,
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Tab,//,
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}
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/*
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*PRINTは関数ではないしmkIIと違って必ず:がいる
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*関数と違ってFUNC(,,,)のような記述はエラー
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*と言っても3.2で上の記述もエラーになりうる
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*/
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class Print : Statement
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{
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/*
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*;は基本無視
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*/
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struct PrintArgument
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{
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PrintArgumentType type;
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Expression expression;
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}
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PrintArgument[] args;
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}
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