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use FnType instead of the tuple mess

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This commit is contained in:
Antoni Piasecki
2026-03-17 16:27:39 +01:00
parent a3f480dc1d
commit 15a68a41d1
3 changed files with 74 additions and 54 deletions
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63
src/analyzer.rs
View File

@@ -5,13 +5,37 @@ use crate::{
tokenizer::{ZernError, error},
};
pub type Type = String;
pub struct StructField {
pub offset: usize,
pub field_type: String,
pub field_type: Type,
}
#[derive(Clone)]
pub struct FnType {
pub return_type: Type,
pub params: Option<Vec<Type>>,
}
impl FnType {
fn new(return_type: &str, params: Vec<&str>) -> FnType {
FnType {
return_type: return_type.to_string(),
params: Some(params.iter().map(|x| x.to_string()).collect()),
}
}
fn new_variadic(return_type: &str) -> FnType {
FnType {
return_type: return_type.to_string(),
params: None,
}
}
}
pub struct Analyzer {
pub functions: HashMap<String, (String, Option<Vec<String>>)>,
pub functions: HashMap<String, FnType>,
pub constants: HashMap<String, u64>,
pub structs: HashMap<String, HashMap<String, StructField>>,
}
@@ -20,21 +44,18 @@ impl Analyzer {
pub fn new() -> Analyzer {
Analyzer {
functions: HashMap::from([
("_builtin_heap_head".into(), ("ptr".into(), Some(vec![]))),
("_builtin_heap_tail".into(), ("ptr".into(), Some(vec![]))),
("_builtin_err_code".into(), ("ptr".into(), Some(vec![]))),
("_builtin_err_msg".into(), ("ptr".into(), Some(vec![]))),
(
"_builtin_read64".into(),
("i64".into(), Some(vec!["ptr".into()])),
),
("_builtin_heap_head".into(), FnType::new("ptr", vec![])),
("_builtin_heap_tail".into(), FnType::new("ptr", vec![])),
("_builtin_err_code".into(), FnType::new("ptr", vec![])),
("_builtin_err_msg".into(), FnType::new("ptr", vec![])),
("_builtin_read64".into(), FnType::new("i64", vec!["ptr"])),
(
"_builtin_set64".into(),
("void".into(), Some(vec!["ptr".into(), "i64".into()])),
FnType::new("void", vec!["ptr", "any"]),
),
("_builtin_syscall".into(), ("any".into(), None)),
("io.printf".into(), ("void".into(), None)),
("_builtin_environ".into(), ("ptr".into(), Some(vec![]))),
("_builtin_syscall".into(), FnType::new_variadic("any")),
("io.printf".into(), FnType::new_variadic("void")),
("_builtin_environ".into(), FnType::new("ptr", vec![])),
]),
constants: HashMap::new(),
structs: HashMap::new(),
@@ -55,10 +76,10 @@ impl Analyzer {
}
self.functions.insert(
name.lexeme.clone(),
(
return_type.lexeme.clone(),
Some(params.iter().map(|x| x.var_type.lexeme.clone()).collect()),
),
FnType {
return_type: return_type.lexeme.clone(),
params: Some(params.iter().map(|x| x.var_type.lexeme.clone()).collect()),
},
);
}
Ok(())
@@ -144,7 +165,7 @@ impl Analyzer {
return error!(name.loc, format!("tried to redefine '{}'", name.lexeme));
}
self.functions
.insert(name.lexeme.clone(), ("any".into(), None));
.insert(name.lexeme.clone(), FnType::new_variadic("any"));
}
Stmt::Struct { name, fields } => {
let mut fields_map: HashMap<String, StructField> = HashMap::new();
@@ -195,9 +216,9 @@ impl Analyzer {
if let Expr::Variable(callee_name) = *callee.clone() {
if self.functions.contains_key(&callee_name.lexeme) {
// its a function (defined/builtin/extern)
if let Some(params) = self.functions.get(&callee_name.lexeme) {
if let Some(fn_type) = self.functions.get(&callee_name.lexeme) {
// if its None, its variadic
if let (_, Some(params)) = params
if let Some(params) = &fn_type.params
&& params.len() != args.len()
{
return error!(

54
src/std/std.zr
View File

@@ -20,7 +20,7 @@ func err.clear[] : void
func err.set[code: i64, msg: str] : void
mem.write64(_builtin_err_code(), code)
mem.write64(_builtin_err_msg(), msg as ptr as i64)
mem.write64(_builtin_err_msg(), msg)
func must[x: any] : any
if err.check()
@@ -57,7 +57,7 @@ func mem._split_block[blk: mem.Block, needed: i64] : void
let next: mem.Block = blk->next
next->prev = new_blk
else
mem.write64(_builtin_heap_tail(), new_blk as ptr as i64)
mem.write64(_builtin_heap_tail(), new_blk)
blk->size = needed
blk->next = new_blk
@@ -87,10 +87,10 @@ func mem._request_space?[size: i64] : mem.Block
tail->next = blk
blk->prev = tail
mem.write64(_builtin_heap_tail(), blk as ptr as i64)
mem.write64(_builtin_heap_tail(), blk)
return blk
func mem.alloc?[size: i64] : ptr
func mem.alloc?[size: i64] : any
err.clear()
if size <= 0
err.set(ERR_ALLOC_FAILED, "mem.alloc? called with non-positive size")
@@ -111,13 +111,13 @@ func mem.alloc?[size: i64] : ptr
return 0
if !mem.read64(_builtin_heap_head())
mem.write64(_builtin_heap_head(), blk as ptr as i64)
mem.write64(_builtin_heap_head(), blk)
mem._split_block(blk, size)
return blk + MEM_BLOCK_SIZE
func mem.alloc[size: i64] : ptr
func mem.alloc[size: i64] : any
return must(mem.alloc?(size))
func mem.free[x: any] : void
@@ -137,7 +137,7 @@ func mem.free[x: any] : void
let b: mem.Block = next->next
b->prev = blk
if mem.read64(_builtin_heap_tail()) == next as ptr
mem.write64(_builtin_heap_tail(), blk as ptr as i64)
mem.write64(_builtin_heap_tail(), blk)
let prev: mem.Block = blk->prev
if prev as ptr && prev->free
@@ -149,7 +149,7 @@ func mem.free[x: any] : void
let b: mem.Block = blk->next
b->prev = prev
if mem.read64(_builtin_heap_tail()) == blk as ptr
mem.write64(_builtin_heap_tail(), prev as ptr as i64)
mem.write64(_builtin_heap_tail(), prev)
blk = prev
let block_total: i64 = blk->size + MEM_BLOCK_SIZE
@@ -158,12 +158,12 @@ func mem.free[x: any] : void
let b: mem.Block = blk->prev
b->next = blk->next
else
mem.write64(_builtin_heap_head(), blk->next as ptr as i64)
mem.write64(_builtin_heap_head(), blk->next)
if blk->next
let b: mem.Block = blk->next
b->prev = blk->prev
else
mem.write64(_builtin_heap_tail(), blk->prev as ptr as i64)
mem.write64(_builtin_heap_tail(), blk->prev)
_builtin_syscall(SYS_munmap, blk, block_total)
func mem.realloc?[x: ptr, new_size: i64] : ptr
@@ -198,7 +198,7 @@ func mem.realloc?[x: ptr, new_size: i64] : ptr
let b: mem.Block = next->next
b->prev = blk
if mem.read64(_builtin_heap_tail()) == next as ptr
mem.write64(_builtin_heap_tail(), blk as ptr as i64)
mem.write64(_builtin_heap_tail(), blk)
mem._split_block(blk, new_size)
return x
@@ -260,7 +260,7 @@ func mem.write16be[x: ptr, d: i64] : void
x[0] = (d >> 8) & 0xff
x[1] = d & 0xff
func mem.write64[x: ptr, d: i64] : void
func mem.write64[x: ptr, d: any] : void
_builtin_set64(x, d)
// see emit_prologue for the io.printf wrapper
@@ -330,12 +330,12 @@ func io.read_char[] : u8
func io.read_line[]: str
let MAX_SIZE = 60000
let buffer: str = mem.alloc(MAX_SIZE + 1) as str
let buffer: str = mem.alloc(MAX_SIZE + 1)
let n: i64 = _builtin_syscall(SYS_read, 0, buffer, MAX_SIZE)
if n < 0
n = 0
buffer[n] = 0
buffer = must(mem.realloc?(buffer, n + 1) as str)
buffer = must(mem.realloc?(buffer, n + 1))
return buffer
struct io.Buffer
@@ -436,7 +436,7 @@ func str.len[s: str] : i64
func str.make_copy[s: str] : str
let size: i64 = str.len(s) + 1
let dup: str = mem.alloc(size) as str
let dup: str = mem.alloc(size)
mem.copy(s as ptr, dup as ptr, size)
return dup
@@ -472,7 +472,7 @@ func str.is_alphanumeric[x: u8] : bool
func str.concat[a: str, b: str] : str
let a_len: i64 = str.len(a)
let b_len: i64 = str.len(b)
let out: str = mem.alloc(a_len + b_len + 1) as str
let out: str = mem.alloc(a_len + b_len + 1)
mem.copy(a as ptr, out as ptr, a_len)
mem.copy(b as ptr, out as ptr + a_len, b_len)
out[a_len + b_len] = 0
@@ -505,7 +505,7 @@ func str.substr[s: str, start: i64, length: i64] : str
if start < 0 || length < 0 || start + length > str.len(s)
panic("str.substr out of bounds")
let out: str = mem.alloc(length + 1) as str
let out: str = mem.alloc(length + 1)
mem.copy(s as ptr + start, out as ptr, length)
out[length] = 0
return out
@@ -513,7 +513,7 @@ func str.substr[s: str, start: i64, length: i64] : str
func str.trim[s: str] : str
let len: i64 = str.len(s)
if len == 0
let out: str = mem.alloc(1) as str
let out: str = mem.alloc(1)
out[0] = 0
return out
@@ -562,7 +562,7 @@ func str.split[haystack: str, needle: str]: Array
func str.reverse[s: str] : str
let len: i64 = str.len(s)
let out: str = mem.alloc(len + 1) as str
let out: str = mem.alloc(len + 1)
for i in 0..len
out[i] = s[len - i - 1]
@@ -571,7 +571,7 @@ func str.reverse[s: str] : str
func str.from_i64[n: i64] : str
if n == 0
let out: str = mem.alloc(2) as str
let out: str = mem.alloc(2)
out[0] = '0'
out[1] = 0
return out
@@ -582,7 +582,7 @@ func str.from_i64[n: i64] : str
if n == -9223372036854775808
return str.make_copy("-9223372036854775808")
n = -n
let buf: str = mem.alloc(21) as str // enough to fit -MAX_I64
let buf: str = mem.alloc(21) // enough to fit -MAX_I64
let end = 20
buf[end] = 0
end = end - 1
@@ -601,13 +601,13 @@ func str.hex_from_i64[n: i64] : str
let hex_chars: str = "0123456789abcdef"
if n == 0
let out: str = mem.alloc(2) as str
let out: str = mem.alloc(2)
out[0] = '0'
out[1] = 0
return out
let mask: i64 = (1 << 60) - 1
let buf: str = mem.alloc(17) as str
let buf: str = mem.alloc(17)
let len = 0
while n != 0
@@ -615,7 +615,7 @@ func str.hex_from_i64[n: i64] : str
n = (n >> 4) & mask
len = len + 1
let out: str = mem.alloc(len + 1) as str
let out: str = mem.alloc(len + 1)
let j = 0
while j < len
out[j] = buf[len - 1 - j]
@@ -626,7 +626,7 @@ func str.hex_from_i64[n: i64] : str
return out
func str.from_char[c: u8] : str
let s: str = mem.alloc(2) as str
let s: str = mem.alloc(2)
s[0] = c
s[1] = 0
return s
@@ -652,7 +652,7 @@ func str.parse_i64[s: str] : i64
func str.hex_encode[s: str, s_len: i64] : str
let hex_chars: str = "0123456789abcdef"
let j = 0
let out: str = mem.alloc(s_len * 2 + 1) as str
let out: str = mem.alloc(s_len * 2 + 1)
for i in 0..s_len
let high: u8 = (s[i] >> 4) & 15
@@ -678,7 +678,7 @@ func str.hex_decode[s: str] : str
let i = 0
let j = 0
let out: str = mem.alloc(s_len / 2 + 1) as str
let out: str = mem.alloc(s_len / 2 + 1)
while i < s_len
out[j] = str._hex_digit_to_int(s[i]) * 16 + str._hex_digit_to_int(s[i + 1])

11
src/typechecker.rs
View File

@@ -4,13 +4,11 @@
use std::{cell::RefCell, collections::HashMap, rc::Rc};
use crate::{
analyzer::Analyzer,
analyzer::{Analyzer, Type},
parser::{Expr, Stmt},
tokenizer::{TokenType, ZernError, error},
};
type Type = String;
macro_rules! expect_type {
($expr_type:expr, $expected:expr, $loc:expr) => {
if $expected != "any" && $expr_type != "any" && $expr_type != $expected {
@@ -330,14 +328,15 @@ impl TypeChecker {
.functions
.contains_key(&callee_name.lexeme)
{
let params = self.analyzer.borrow().functions[&callee_name.lexeme].clone();
if let (_, Some(params)) = params {
let fn_type =
&self.analyzer.borrow().functions[&callee_name.lexeme].clone();
if let Some(params) = fn_type.params.clone() {
// its a function (defined/builtin/extern)
for (i, arg) in args.iter().enumerate() {
expect_type!(self.typecheck_expr(env, arg)?, params[i], paren.loc);
}
}
Ok(params.0)
Ok(fn_type.return_type.clone())
} else {
// its a variable containing function address
expect_type!(self.typecheck_expr(env, callee)?, "fnptr", paren.loc);