コンパイルして実行できるようにした

SMILEBASIC/VM.d

@@ -1,32 +1,112 @@
 module otya.smilebasic.vm;
+import otya.smilebasic.type;
+import otya.smilebasic.token;
+import std.uni;
+import std.conv;
+import std.stdio;
 class VM
 {
+    Code[] code;
+    int stacki;
+    Value[] stack;
+    this(Code[] code)
+    {
+        this.code = code;
+        this.stack = new Value[1024 * 1024];
+    }
+    void run()
+    {
+        for(int i = 0; i < this.code.length; i++)
+        {
+            code[i].execute(this);
+        }
+    }
+    void push(ref Value value)
+    {
+        stack[stacki++] = value;
+    }
+    void pop(out Value value)
+    {
+        value = stack[--stacki];
+    }
 }
 enum CodeType
 {
-    PushI,
+    Push,
-    PushD,
-    PushS,
     Operate,
     Return,
     Goto,
     Gosub,
+    Print,
 }
 abstract class Code
 {
     CodeType type;
     abstract void execute(VM vm);
 }
+class PrintCode : Code
+{
+    int count;
+    this(int count)
+    {
+        this.type = CodeType.Print;
+        this.count = count;
+    }
+    override void execute(VM vm)
+    {
+        for(int i = 0;i < count; i++)
+        {
+            Value arg;
+            vm.pop(arg);
+            switch(arg.type)
+            {
+                case ValueType.Integer:
+                    write(arg.integerValue);
+                    break;
+                case ValueType.String:
+                    write(cast(string)arg.stringValue);
+                    break;
+                default:
+                    //type missmatch
+                    break;
+            }
+        }
+    }
+}
 /*
 * スタックにPush
 */
 class Push : Code
 {
-
+    Value imm;
+    this(Value imm)
+    {
+        this.type = CodeType.Push;
+        this.imm = imm;
+    }
+    override void execute(VM vm)
+    {
+        vm.push(imm);
+    }
 }
 class Operate : Code
 {
+    TokenType operator;
+    this(TokenType op)
+    {
+        this.operator = op;
+    }
 
+    override void execute(VM vm)
+    {
+        Value l;
+        Value r;
+        vm.pop(l);
+        vm.pop(r);
+        //とりあえずInteger
+        l.integerValue += r.integerValue;
+        vm.push(l);
+    }
 }
 class Goto : Code
 {

SMILEBASIC/compiler.d

@@ -1,6 +1,8 @@
 module otya.smilebasic.compiler;
 import otya.smilebasic.node;
+import otya.smilebasic.token;
 import otya.smilebasic.vm;
+import otya.smilebasic.type;
 import std.stdio;
 class Compiler
 {
@@ -8,18 +10,85 @@ class Compiler
     this(Statements statements)
     {
         this.statements = statements;
+        code = new Code[0];
     }
 
-    void compile()
+    Code[] code;
+    void genCodeImm(Value value)
+    {
+        code ~= new Push(value);
+    }
+    void genCodeOP(TokenType op)
+    {
+        code ~= new Operate(op);
+    }
+    void compileExpression(Expression exp)
+    {
+
+        switch(exp.type)
+        {
+            case NodeType.Constant:
+                genCodeImm((cast(Constant)exp).value);
+                break;
+            case NodeType.BinaryOperator:
+                {
+                    auto binop = cast(BinaryOperator)exp;
+                    compileExpression(binop.item1);
+                    compileExpression(binop.item2);
+                    genCodeOP(binop.operator);
+                }
+                break;
+            case NodeType.Variable:
+                break;
+            case NodeType.CallFunction:
+                {
+                    auto func = cast(CallFunction)exp;
+                    if(func.name == "ADD")
+                    {
+                        foreach_reverse(Expression i ; func.args)
+                        {
+                            compileExpression(i);
+                        }
+                    }
+                }
+                break;
+            default:
+                break;
+        }
+    }
+    VM compile()
     {
-        Code[] code = new Code[0];
         foreach(Statement i ; statements.statements)
         {
             switch(i.type)
             {
+                case NodeType.Print:
+                    {
+                        auto print = cast(Print)i;
+                        foreach_reverse(PrintArgument j ; print.args)
+                        {
+                            switch(j.type)
+                            {
+                                case PrintArgumentType.Expression:
+                                    compileExpression(j.expression);
+                                    break;
+                                case PrintArgumentType.Line:
+                                    genCodeImm(Value("\n"));
+                                    break;
+                                case PrintArgumentType.Tab:
+                                    genCodeImm(Value("\t"));
+                                    break;
+                                default:
+                                    break;
+                            }
+                        }
+                        code ~= new PrintCode(print.args.length);
+                    }
+                    break;
                 default:
                     stderr.writeln("Compile:NotImpl ", i.type);
             }
         }
+        return new VM(code);
     }
 }

SMILEBASIC/main.d

@@ -2,15 +2,15 @@ import std.stdio;
 import otya.smilebasic.parser;
 int main(string[] argv)
 {
-    writeln("Hello D-World!");
     version(none)
     {
         auto parser = new Parser("ADD(ADD(1,2,3,4,5,6),2,3,4,5,6)");
         writeln(parser.calc());
     }
 
-    auto parser = new Parser("PRINT 1+1");
+    auto parser = new Parser("PRINT 1+1,2+3;10-5");
-    parser.compile();
+    auto vm = parser.compile();
+    vm.run();
     readln();
     return 0;
 }

SMILEBASIC/parser.d

@@ -260,10 +260,10 @@ class Parser
                 return - - -1;
         }
     }
-    void compile()
+    auto compile()
     {
         auto compiler = new Compiler(parseProgram());
-        compiler.compile();
+        return compiler.compile();
     }
     Statements parseProgram()
     {
@@ -305,6 +305,23 @@ class Parser
                             print.addLine();
                             break;
                         }
+                        addline = true;
+                        auto exp = expression();
+                        if(exp is null)
+                        {
+                            syntaxError();
+                            continue;
+                        }
+                        print.addArgument(exp);
+                        token = lex.front();
+                        if(lex.empty()) break;
+                        if(token.type != TokenType.Colon && token.type != TokenType.NewLine && token.type != TokenType.Semicolon && token.type != TokenType.Comma)
+                        {
+                            syntaxError();
+                        }
+                        else
+                        {
+                            lex.popFront();
                             if(token.type == TokenType.Semicolon)
                             {
                                 addline = false;
@@ -316,20 +333,7 @@ class Parser
                                 addline = false;
                                 continue;
                             }
-                        addline = true;
-                        auto exp = expression();
-                        if(exp is null)
-                        {
-                            syntaxError();
-                            continue;
-                        }
-                        print.addArgument(exp);
-                        lex.popFront();
                             token = lex.front();
-                        if(lex.empty()) break;
-                        if(token.type != TokenType.Colon && token.type != TokenType.NewLine && token.type != TokenType.Semicolon && token.type != TokenType.Comma)
-                        {
-                            syntaxError();
                         }
                     }
                     return print;

SMILEBASIC/type.d

@@ -34,4 +34,15 @@ struct Value
         this.type = ValueType.String;
         stringValue = value;
     }
+    void castOp(ValueType type)
+    {
+        switch(type)
+        {
+            case ValueType.Double:
+                
+                break;
+            default:
+                break;
+        }
+    }
 }