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casts, typecheck struct field access

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This commit is contained in:
Antoni Piasecki
2026-03-17 15:25:28 +01:00
parent 13fa93c611
commit 5846f7e730
5 changed files with 184 additions and 29 deletions
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29
src/codegen_x86_64.rs
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@@ -573,15 +573,9 @@ _builtin_environ:
match left.as_ref() {
Expr::Variable(name) => {
// TODO: move to analyzer
let var = match env.get_var(&name.lexeme) {
Some(x) => x,
None => {
return error!(
name.loc,
format!("undefined variable: {}", &name.lexeme)
);
}
None => unreachable!(),
};
emit!(
&mut self.output,
@@ -589,7 +583,11 @@ _builtin_environ:
var.stack_offset,
);
}
Expr::Index { expr, index } => {
Expr::Index {
expr,
bracket: _,
index,
} => {
emit!(&mut self.output, " push rax");
self.compile_expr(env, expr)?;
emit!(&mut self.output, " push rax");
@@ -688,7 +686,11 @@ _builtin_environ:
}
emit!(&mut self.output, " pop rax");
}
Expr::Index { expr, index } => {
Expr::Index {
expr,
bracket: _,
index,
} => {
self.compile_expr(env, expr)?;
emit!(&mut self.output, " push rax");
self.compile_expr(env, index)?;
@@ -739,6 +741,9 @@ _builtin_environ:
self.compile_expr(env, left)?;
emit!(&mut self.output, " mov rax, QWORD [rax+{}]", offset);
}
Expr::Cast { expr, type_name: _ } => {
self.compile_expr(env, expr)?;
}
}
Ok(())
}
@@ -772,11 +777,11 @@ _builtin_environ:
}
};
let offset = match fields.get(&field.lexeme) {
Some(o) => *o,
let field = match fields.get(&field.lexeme) {
Some(o) => o,
None => return error!(&field.loc, format!("unknown field: {}", &field.lexeme)),
};
Ok(offset)
Ok(field.offset)
}
}