Implemented structs

src/core/CompileDelete.go

@@ -0,0 +1,37 @@
+package core
+
+import (
+	"git.akyoto.dev/cli/q/src/asm"
+	"git.akyoto.dev/cli/q/src/expression"
+	"git.akyoto.dev/cli/q/src/types"
+)
+
+// CompileDelete compiles a `delete` function call which deallocates a struct.
+func (f *Function) CompileDelete(root *expression.Expression) error {
+	parameters := root.Children[1:]
+	variableName := parameters[0].Token.Text(f.File.Bytes)
+	variable := f.VariableByName(variableName)
+	defer f.UseVariable(variable)
+	f.SaveRegister(f.CPU.Input[0])
+	f.SaveRegister(f.CPU.Input[1])
+	f.RegisterRegister(asm.MOVE, f.CPU.Input[0], variable.Register)
+	f.RegisterNumber(asm.MOVE, f.CPU.Input[1], int(variable.Type.(*types.Pointer).To.TotalSize()))
+
+	for _, register := range f.CPU.General {
+		if f.RegisterIsUsed(register) {
+			f.Register(asm.PUSH, register)
+		}
+	}
+
+	f.Call("mem.free")
+
+	for i := len(f.CPU.General) - 1; i >= 0; i-- {
+		register := f.CPU.General[i]
+
+		if f.RegisterIsUsed(register) {
+			f.Register(asm.POP, register)
+		}
+	}
+
+	return nil
+}