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feat: support callback signatures and many-pointer addition

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This commit is contained in:
Valdemar Høgsvig Lorenzen
2026-10-26 11:32:29 +01:00
parent 676f3666b4
commit 7856f4f963
8 changed files with 417 additions and 50 deletions
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source/parser/parse.hon
+50 -27
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@@ -149,33 +149,7 @@ parse_func_decl proc(state @mut State) ast.NodeId ! ParseError {
params arraylist.ArrayList(ast.NodeId) := arraylist.init(state.allocator)
defer arraylist.deinit(&params)
names arraylist.ArrayList(lexer.Token) := arraylist.init(state.allocator)
defer arraylist.deinit(&names)
while !next_is(state, .close_paren) {
arraylist.clear(&names)
while true {
token :: try consume(state, .ident)
try arraylist.append(&names, token)
if (starts_type(current(state).kind)) break
_ = try consume(state, .comma)
}
type_id :: try parse_type(state)
type_span :: ast.builder_span(state.builder, type_id)
for (names.items) |parameter_name| {
param_id :: try ast.add_param(
state.builder,
ast.Span{ start = parameter_name.span.start, end = type_span.end, source = parameter_name.span.source },
parameter_name.span,
parameter_name.data.str_id,
type_id,
)
try arraylist.append(&params, param_id)
}
if next_is(state, .comma) _ = try consume(state, .comma)
}
try parse_parameters(state, &params)
_ = try consume(state, .close_paren)
return_type :: try parse_type(state)
body :: try parse_block(state)
@@ -195,6 +169,36 @@ parse_func_decl proc(state @mut State) ast.NodeId ! ParseError {
)
}
@hide:file
parse_parameters proc(
state @mut State, params @mut arraylist.ArrayList(ast.NodeId),
) void ! ParseError {
names arraylist.ArrayList(lexer.Token) := arraylist.init(state.allocator)
defer arraylist.deinit(&names)
while !next_is(state, .close_paren) {
arraylist.clear(&names)
while true {
token :: try consume(state, .ident)
try arraylist.append(&names, token)
if (starts_type(current(state).kind)) break
_ = try consume(state, .comma)
}
type_id :: try parse_type(state)
type_span :: ast.builder_span(state.builder, type_id)
for (names.items) |parameter_name| {
param_id :: try ast.add_param(
state.builder,
ast.Span{ start = parameter_name.span.start, end = type_span.end, source = parameter_name.span.source },
parameter_name.span,
parameter_name.data.str_id,
type_id,
)
try arraylist.append(params, param_id)
}
if next_is(state, .comma) _ = try consume(state, .comma)
}
}
@hide:file
parse_block proc(state @mut State) ast.NodeId ! ParseError {
open :: try consume(state, .open_curly)
@@ -610,6 +614,25 @@ parse_type proc(state @mut State) ast.NodeId ! ParseError {
state.next_token += 1
mutable :: next_is(state, .mut)
if (mutable) state.next_token += 1
if (next_is(state, .proc)) {
state.next_token += 1
_ = try consume(state, .open_paren)
params := arraylist.init(ast.NodeId, state.allocator)
defer arraylist.deinit(&params)
try parse_parameters(state, &params)
_ = try consume(state, .close_paren)
result :: try parse_type(state)
span :: ast.Span{
start = token.span.start,
end = ast.builder_span(state.builder, result).end,
source = token.span.source,
}
if (mutable or token.kind == .star) {
diagnostic :: try diagnostics.add(state.diagnostics, .invalid_pointer_type, span)
return try ast.add_invalid_expr(state.builder, span, diagnostic)
}
return try ast.add_function_type(state.builder, span, result, params.items)
}
element :: try parse_type(state)
return try ast.add_pointer_type(state.builder, ast.Span{
start = token.span.start,