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my first macro

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This commit is contained in:
Shautvast 2025-10-22 17:13:49 +02:00
parent 5243e46dce
commit f6b3b0a39a
2 changed files with 30 additions and 119 deletions
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2
src/main.rs
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@ -2,7 +2,7 @@ fn main() -> anyhow::Result<()> {
tracing_subscriber::fmt::init(); tracing_subscriber::fmt::init();
let chunk = crudlang::compiler::compile( let chunk = crudlang::compiler::compile(
r#"let a: string = "koe""#, r#"let a: bool = "koe""#,
); );
match chunk { match chunk {
Err(e) => { Err(e) => {

147
src/vm.rs
View file

@ -4,6 +4,21 @@ use anyhow::anyhow;
use std::collections::HashMap; use std::collections::HashMap;
use tracing::debug; use tracing::debug;
macro_rules! define_var {
($self:ident, $variant:ident) => {{
let name = $self.read_constant();
let value = $self.pop();
if let Value::$variant(_) = value {
$self.local_vars.insert(name, value);
} else {
return Err(anyhow!(
concat!("Expected ", stringify!($variant), ", got {:?}"),
value
));
}
}};
}
pub fn interpret(chunk: Chunk) -> anyhow::Result<Value> { pub fn interpret(chunk: Chunk) -> anyhow::Result<Value> {
let mut vm = Vm { let mut vm = Vm {
chunk, chunk,
@ -81,123 +96,19 @@ impl Vm {
let value = self.pop(); let value = self.pop();
self.local_vars.insert(name, value); self.local_vars.insert(name, value);
} }
OP_DEF_I32 => { OP_DEF_I32 => define_var!(self, I32),
let name = self.read_constant(); OP_DEF_I64 => define_var!(self, I64),
let value = self.pop(); OP_DEF_U32 => define_var!(self, U32),
if let Value::I32(_) = value { OP_DEF_U64 => define_var!(self, U64),
self.local_vars.insert(name, value); OP_DEF_F32 => define_var!(self, F32),
} else { OP_DEF_F64 => define_var!(self, F64),
return Err(anyhow!("Expected i32, got {:?}", value)); OP_DEF_STRING => define_var!(self, String),
} OP_DEF_CHAR => define_var!(self, Char),
} OP_DEF_BOOL =>define_var!(self, Bool),
OP_DEF_I64 => { OP_DEF_DATE => define_var!(self, Date),
let name = self.read_constant(); OP_DEF_LIST => define_var!(self, List),
let value = self.pop(); OP_DEF_MAP => define_var!(self, Map),
if let Value::I64(_) = value { OP_DEF_STRUCT => define_var!(self, Struct),
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected i64, got {:?}", value));
}
}
OP_DEF_U32 => {
let name = self.read_constant();
let value = self.pop();
if let Value::U32(_) = value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected u32, got {:?}", value));
}
}
OP_DEF_U64 => {
let name = self.read_constant();
let value = self.pop();
if let Value::U64(_) = value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected u64, got {:?}", value));
}
}
OP_DEF_F32 => {
let name = self.read_constant();
let value = self.pop();
if let Value::F32(_) = value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected f32, got {:?}", value));
}
}
OP_DEF_F64 => {
let name = self.read_constant();
let value = self.pop();
if let Value::F64(_) = value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected f64, got {:?}", value));
}
}
OP_DEF_STRING => {
let name = self.read_constant();
let value = self.pop();
if let Value::String(_) = &value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected string, got {:?}", value));
}
}
OP_DEF_CHAR => {
let name = self.read_constant();
let value = self.pop();
if let Value::Char(_) = &value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected char, got {:?}", value));
}
}
OP_DEF_BOOL => {
let name = self.read_constant();
let value = self.pop();
if let Value::Bool(_) = &value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected bool, got {:?}", value));
}
}
OP_DEF_DATE => {
let name = self.read_constant();
let value = self.pop();
if let Value::Date(_) = &value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected date, got {:?}", value));
}
}
OP_DEF_LIST => {
let name = self.read_constant();
let value = self.pop();
if let Value::List(_) = &value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected list, got {:?}", value));
}
}
OP_DEF_MAP => {
let name = self.read_constant();
let value = self.pop();
if let Value::Map(_) = &value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected map, got {:?}", value));
}
}
OP_DEF_STRUCT => {
let name = self.read_constant();
let value = self.pop();
if let Value::Struct(_) = &value {
self.local_vars.insert(name, value);
} else {
return Err(anyhow!("Expected object, got {:?}", value));
}
}
OP_GET => { OP_GET => {
let name = self.read_constant(); let name = self.read_constant();
let value = self.local_vars.get(&name).unwrap(); let value = self.local_vars.get(&name).unwrap();
@ -275,7 +186,7 @@ pub const OP_BITXOR: u16 = 22;
pub const OP_SHR: u16 = 23; pub const OP_SHR: u16 = 23;
pub const OP_SHL: u16 = 24; pub const OP_SHL: u16 = 24;
pub const OP_POP: u16 = 25; pub const OP_POP: u16 = 25;
pub const OP_DEFINE: u16 = 26; pub const OP_DEFINE: u16 = 26;// may be obsolete already
pub const OP_GET: u16 = 27; pub const OP_GET: u16 = 27;
pub const OP_DEF_I32: u16 = 28; pub const OP_DEF_I32: u16 = 28;
pub const OP_DEF_I64: u16 = 29; pub const OP_DEF_I64: u16 = 29;