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Deduplicate immediate to AstNode conversion

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This commit is contained in:
jn 2023-02-02 02:10:52 +01:00
parent b2212bfa24
commit da654a216b
1 changed files with 16 additions and 36 deletions
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52
src/main.rs
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@ -770,6 +770,18 @@ fn remove_underscores(input: &str) -> String {
String::from_iter(input.chars().filter(|c| *c != '_'))
}
fn immediate_to_astnode(immediate: u32, size: Size, is_pointer: bool) -> AstNode {
if is_pointer {
AstNode::ImmediatePointer(immediate)
} else {
match size {
Size::Byte => AstNode::Immediate8(immediate as u8),
Size::Half => AstNode::Immediate16(immediate as u16),
Size::Word => AstNode::Immediate32(immediate),
}
}
}
fn parse_operand(mut pair: pest::iterators::Pair<Rule>, is_pointer: bool) -> AstNode {
//println!("parse_operand: {:#?}", pair); // debug
let size = *CURRENT_SIZE.lock().unwrap();
@ -785,54 +797,22 @@ fn parse_operand(mut pair: pest::iterators::Pair<Rule>, is_pointer: bool) -> Ast
Rule::immediate_bin => {
let body_bin_str = operand_value_pair.into_inner().next().unwrap().as_str();
let immediate = u32::from_str_radix(&remove_underscores(body_bin_str), 2).unwrap();
if is_pointer {
AstNode::ImmediatePointer(immediate)
} else {
match size {
Size::Byte => AstNode::Immediate8(immediate as u8),
Size::Half => AstNode::Immediate16(immediate as u16),
Size::Word => AstNode::Immediate32(immediate),
}
}
immediate_to_astnode(immediate, size, is_pointer)
}
Rule::immediate_hex => {
let body_hex_str = operand_value_pair.into_inner().next().unwrap().as_str();
let immediate = u32::from_str_radix(&remove_underscores(body_hex_str), 16).unwrap();
if is_pointer {
AstNode::ImmediatePointer(immediate)
} else {
match size {
Size::Byte => AstNode::Immediate8(immediate as u8),
Size::Half => AstNode::Immediate16(immediate as u16),
Size::Word => AstNode::Immediate32(immediate),
}
}
immediate_to_astnode(immediate, size, is_pointer)
}
Rule::immediate_dec => {
let body_dec_str = operand_value_pair.into_inner().next().unwrap().as_str();
let immediate = remove_underscores(body_dec_str).parse::<u32>().unwrap();
if is_pointer {
AstNode::ImmediatePointer(immediate)
} else {
match size {
Size::Byte => AstNode::Immediate8(immediate as u8),
Size::Half => AstNode::Immediate16(immediate as u16),
Size::Word => AstNode::Immediate32(immediate),
}
}
immediate_to_astnode(immediate, size, is_pointer)
}
Rule::immediate_char => {
let body_char_str = operand_value_pair.into_inner().next().unwrap().as_str();
let immediate = body_char_str.chars().nth(0).unwrap() as u8 as u32;
if is_pointer {
AstNode::ImmediatePointer(immediate)
} else {
match size {
Size::Byte => AstNode::Immediate8(immediate as u8),
Size::Half => AstNode::Immediate16(immediate as u16),
Size::Word => AstNode::Immediate32(immediate),
}
}
immediate_to_astnode(immediate, size, is_pointer)
}
Rule::register => {
let register_num_pair = operand_value_pair.into_inner().next().unwrap();