bonkmaykr/otyaSMILEBASIC
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コンパイルして実行できるようにした

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otya128
2015-06-04 22:53:15 +09:00
parent de5db9282c
commit c33df7e4ac
5 changed files with 187 additions and 23 deletions
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73
SMILEBASIC/compiler.d
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@@ -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);
}
}