func (v *Codegen) primitiveTypeToLLVMType(typ ast.PrimitiveType) llvm.Type {
switch typ {
case ast.PRIMITIVE_int, ast.PRIMITIVE_uint, ast.PRIMITIVE_uintptr:
return v.targetData.IntPtrType()
case ast.PRIMITIVE_s8, ast.PRIMITIVE_u8:
return llvm.IntType(8)
case ast.PRIMITIVE_s16, ast.PRIMITIVE_u16:
return llvm.IntType(16)
case ast.PRIMITIVE_s32, ast.PRIMITIVE_u32:
return llvm.IntType(32)
case ast.PRIMITIVE_s64, ast.PRIMITIVE_u64:
return llvm.IntType(64)
case ast.PRIMITIVE_s128, ast.PRIMITIVE_u128:
return llvm.IntType(128)
case ast.PRIMITIVE_f32:
return llvm.FloatType()
case ast.PRIMITIVE_f64:
return llvm.DoubleType()
case ast.PRIMITIVE_f128:
return llvm.FP128Type()
case ast.PRIMITIVE_bool:
return llvm.IntType(1)
case ast.PRIMITIVE_void:
return llvm.VoidType()
default:
panic("Unimplemented primitive type in LLVM codegen")
}
}
func (v *Codegen) functionTypeToLLVMType(typ ast.FunctionType, ptr bool, gcon *ast.GenericContext) llvm.Type {
numOfParams := len(typ.Parameters)
if typ.Receiver != nil {
numOfParams++
}
params := make([]llvm.Type, 0, numOfParams)
if typ.Receiver != nil {
params = append(params, v.typeRefToLLVMTypeWithOuter(typ.Receiver, gcon))
}
for _, par := range typ.Parameters {
params = append(params, v.typeRefToLLVMTypeWithOuter(par, gcon))
}
var returnType llvm.Type
// oo theres a type, let's try figure it out
if typ.Return != nil {
returnType = v.typeRefToLLVMTypeWithOuter(typ.Return, gcon)
} else {
returnType = llvm.VoidType()
}
// create the function type
funcType := llvm.FunctionType(returnType, params, typ.IsVariadic)
if ptr {
funcType = llvm.PointerType(funcType, 0)
}
return funcType
}