chore: Initial commit

1 files changed, 0 insertions, 177 deletions

diff --git a/Compiler/visitors/FlowControl.cs b/Compiler/visitors/FlowControl.cs
deleted file mode 100644
index 944595d..0000000
--- a/Compiler/visitors/FlowControl.cs
+++ /dev/null
@@ -1,177 +0,0 @@
-namespace Q1.Compiler.visitors;
-
-public partial class CCompilerVisitor
-{
-    public override string? VisitBlock(CGrammarParser.BlockContext context)
-    {
-        this.EnterScope();
-
-        this.VisitChildren(context);
-
-        this.ExitScope();
-
-        return null;
-    }
-    public override string? VisitReturnStatement(CGrammarParser.ReturnStatementContext context)
-    {
-        if (context.expression() != null)
-        {
-            string expression = this.VisitExpression(context.expression());
-            this.Instruction($"mov {expression}, V0", "return value");
-            this.Instruction($"ret");
-        }
-        else
-            this.Instruction("ret");
-
-        return null;
-    }
-    public override string? VisitIfStatement(CGrammarParser.IfStatementContext context)
-    {
-        string cond = this.VisitExpression(context.expression());
-        string endBranch = this.GenerateBranchLabel("end");
-
-        if (context.@else != null)
-        {
-            this.Instruction($"bz {cond}", "check if condition");
-            // Else branch is first since it saves us from having to perform a NOT operation.
-            // If cond, jump to then, else fall through to else, then jump to end
-
-            string thenBranch = this.GenerateBranchLabel("then");
-
-            this.Instruction($"jmp {thenBranch}");
-
-            this.GeneratedComment("if failed");
-            if (context.@else != null)
-                this.Visit(context.@else);
-            this.Instruction($"jmp {endBranch}");
-
-            this.Branch(thenBranch, "if succeeded");
-            this.Visit(context.then);
-        }
-        else
-        {
-            this.Instruction($"not {cond}");
-            this.Instruction($"bz", "check if condition");
-            this.Instruction($"jmp {endBranch}", "if succeeds, continue, else jump to end");
-            this.Visit(context.then);
-        }
-
-        this.Branch(endBranch);
-
-        return null;
-    }
-    public override string? VisitForExprStatement(CGrammarParser.ForExprStatementContext context)
-    {
-        string bodyBranch = this.GenerateBranchLabel("body");
-        string endBranch = this.GenerateBranchLabel("end");
-
-        context.LoopBodyBranch = bodyBranch;
-        context.LoopEndBranch  = endBranch;
-
-        this.EnterScope();
-        this.Visit(context.initializer);
-
-        this.Branch(bodyBranch);
-        string cond = this.VisitExpression(context.cond);
-
-        this.Instruction($"not {cond}");
-        this.Instruction($"bz");
-        this.Instruction($"jmp {endBranch}", "if for condition fails, jump to end");
-
-        this.Visit(context.body);
-        this.Visit(context.post);
-
-        this.Branch(endBranch);
-        this.ExitScope();
-
-        return null;
-    }
-    public override string? VisitForDeclStatement(CGrammarParser.ForDeclStatementContext context)
-    {
-        string bodyBranch = this.GenerateBranchLabel("body");
-        string endBranch = this.GenerateBranchLabel("end");
-
-        context.LoopBodyBranch = bodyBranch;
-        context.LoopEndBranch  = endBranch;
-
-        this.EnterScope();
-        this.Visit(context.initializer);
-
-        this.Branch(bodyBranch);
-        string cond = this.VisitExpression(context.cond);
-
-        this.Instruction($"not {cond}");
-        this.Instruction($"bz");
-        this.Instruction($"jmp {endBranch}", "if for condition fails, jump to end");
-
-        this.Visit(context.body);
-        this.Visit(context.post);
-        
-        this.Instruction($"jmp {bodyBranch}");
-
-        this.Branch(endBranch);
-        this.ExitScope();
-
-        return null;
-    }
-    public override string? VisitWhileStatement(CGrammarParser.WhileStatementContext context)
-    {
-        string bodyBranch = this.GenerateBranchLabel("body");
-        string endBranch = this.GenerateBranchLabel("end");
-
-        context.LoopBodyBranch = bodyBranch;
-        context.LoopEndBranch  = endBranch;
-
-        this.Branch(bodyBranch);
-        string cond = this.VisitExpression(context.cond);
-
-        this.Instruction($"not {cond}");
-        this.Instruction($"bz");
-        this.Instruction($"jmp {endBranch}", "if while condition fails, jump to end");
-
-        this.Visit(context.body);
-        this.Instruction($"jmp {bodyBranch}");
-
-        this.Branch(endBranch);
-
-        return null;
-    }
-    public override string? VisitDoWhileStatement(CGrammarParser.DoWhileStatementContext context)
-    {
-        string bodyBranch = this.GenerateBranchLabel("body");
-        string endBranch = this.GenerateBranchLabel("end");
-
-        context.LoopBodyBranch = bodyBranch;
-        context.LoopEndBranch  = endBranch;
-
-        this.Branch(bodyBranch);
-        this.Visit(context.body);
-
-        string cond = this.VisitExpression(context.cond);
-
-        this.Instruction($"bz {cond}");
-        this.Instruction($"jmp {bodyBranch}", "if while condition succeeds, jump back to start");
-
-        this.Branch(endBranch);
-
-        return null;
-    }
-    public override string? VisitBreakStatement(CGrammarParser.BreakStatementContext context)
-    {
-        if (context.LoopEndBranch == null)
-            throw new CompilerException("Cannot break, not inside loop with end");
-
-        this.Instruction($"jmp {context.LoopEndBranch}", "break");
-
-        return null;
-    }
-    public override string? VisitContinueStatement(CGrammarParser.ContinueStatementContext context)
-    {
-        if (context.LoopBodyBranch == null)
-            throw new CompilerException("Cannot skip body (continue), not inside loop with body");
-
-        this.Instruction($"jmp {context.LoopBodyBranch}", "continue");
-
-        return null;
-    }
-}
\ No newline at end of file