cli/q
1
0
Fork 0
Code Issues Pull requests Releases Activity

Implemented reading from struct fields

Browse source
This commit is contained in:
Eduard Urbach 2025-02-04 20:43:15 +01:00
parent e36d9fade3
commit 71d7cdf5b2
Signed by: eduard
GPG key ID: 49226B848C78F6C8
10 changed files with 112 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

26
src/core/CompileAssignField.go
View file

@ -24,21 +24,19 @@ func (f *Function) CompileAssignField(node *ast.Assign) error {
defer f.UseVariable(variable)
pointer := variable.Type.(*types.Pointer)
structure := pointer.To.(*types.Struct)
field := structure.FieldByName(fieldName)
for _, field := range structure.Fields {
if field.Name == fieldName {
memory := asm.Memory{
Base: variable.Register,
Offset: field.Offset,
OffsetRegister: math.MaxUint8,
Length: field.Type.TotalSize(),
}
_, err := f.ExpressionToMemory(value, memory)
return err
}
if field == nil {
return errors.New(&errors.UnknownStructField{StructName: structure.Name, FieldName: fieldName}, f.File, destination.Children[1].Token.Position)
}
// TODO: unknown field error
return nil
memory := asm.Memory{
Base: variable.Register,
Offset: field.Offset,
OffsetRegister: math.MaxUint8,
Length: field.Type.TotalSize(),
}
_, err := f.ExpressionToMemory(value, memory)
return err
}

11
src/core/ExpressionToRegister.go
View file

@ -44,6 +44,17 @@ func (f *Function) ExpressionToRegister(node *expression.Expression, register cp
return types.Int, err
}
if node.Token.Kind == token.Period {
left := node.Children[0]
name := left.Token.Text(f.File.Bytes)
variable := f.VariableByName(name)
right := node.Children[1]
name = right.Token.Text(f.File.Bytes)
field := variable.Type.(*types.Pointer).To.(*types.Struct).FieldByName(name)
f.MemoryRegister(asm.LOAD, asm.Memory{Base: variable.Register, Offset: field.Offset, Length: field.Type.TotalSize()}, register)
return field.Type, nil
}
if len(node.Children) == 1 {
if !node.Token.IsUnaryOperator() {
return nil, errors.New(errors.MissingOperand, f.File, node.Token.End())