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feat: support callback signatures and many-pointer addition

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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/ast/ast.hon
+31 -6
View File
@@ -1,5 +1,5 @@
#! grammar:
#! * type ..... -> identifier {'.' member} | ('@' | '*') ['mut'] type | '[' (expr | '_') ']' ['mut'] type | 'struct' '{' fields '}' | 'enum' ['(' type ')'] '{' members '}' | 'union' ['(' (type | 'enum') ')'] '{' fields '}' | ('distinct' | 'alias') type
#! * type ..... -> identifier {'.' member} | ('@' | '*') ['mut'] type | '@proc' '(' parameters ')' type | '[' (expr | '_') ']' ['mut'] type | 'struct' '{' fields '}' | 'enum' ['(' type ')'] '{' members '}' | 'union' ['(' (type | 'enum') ')'] '{' fields '}' | ('distinct' | 'alias') type
#! * binding ... -> :: | :=
#! * literal .. -> int | float | string | 'true' | 'false'
#! * op ....... -> '+' | '-' | '*' | '/' | '==' | '!=' | '<' | '<=' | '>' | '>=' | 'and' | 'or'
@@ -45,6 +45,7 @@ ExprKind :: enum {
range
array_type
pointer_type
function_type
array_literal
record_type
record_literal
@@ -112,6 +113,7 @@ NodeKind :: enum {
expr_range
expr_array_type
expr_pointer_type
expr_function_type
expr_array_literal
expr_record_type
expr_record_literal
@@ -511,6 +513,19 @@ add_pointer_type proc(
}, span)
}
add_function_type proc(
builder @mut Builder, span Span, result NodeId, params []NodeId,
) NodeId ! mem.AllocError {
start :: builder.storage.extra.items.len
for (params) |parameter| _ = try add_extra(builder, u32(parameter))
return try add_node(builder, Node{
kind = .expr_function_type,
main = NodeData{ node_id = result },
data0 = NodeData{ extra = u32(start) },
data1 = NodeData{ extra = u32(builder.storage.extra.items.len) },
}, span)
}
add_array_literal proc(builder @mut Builder, span Span, elements []NodeId) NodeId ! mem.AllocError {
start :: builder.storage.extra.items.len
for (elements) |element| _ = try add_extra(builder, u32(element))
@@ -1032,6 +1047,13 @@ function_decl proc(tree @Tree, id NodeId) FunctionDeclView {
}
}
callable_result proc(tree @Tree, id NodeId) NodeId {
node :: get_node(&tree.storage, id)
if (node.kind == .func_decl) return function_decl(tree, id).return_type
debug.assert(node.kind == .expr_function_type)
return node.main.node_id
}
import_decl proc(tree @Tree, id NodeId) ImportView {
node :: get_node(&tree.storage, id)
debug.assert(node.kind == .import_decl)
@@ -1047,15 +1069,17 @@ import_decl proc(tree @Tree, id NodeId) ImportView {
function_param_count proc(tree @Tree, id NodeId) usize {
node :: get_node(&tree.storage, id)
debug.assert(node.kind == .func_decl)
return usize(node.data1.extra - node.main.extra - 4)
debug.assert(node.kind == .func_decl or node.kind == .expr_function_type)
start :: if (node.kind == .func_decl) node.main.extra + 4 else node.data0.extra
return usize(node.data1.extra - start)
}
function_param proc(tree @Tree, id NodeId, index usize) NodeId {
node :: get_node(&tree.storage, id)
debug.assert(node.kind == .func_decl)
debug.assert(index < usize(node.data1.extra - node.main.extra - 4))
return NodeId(tree.storage.extra.items[usize(node.main.extra) + 4 + index])
debug.assert(node.kind == .func_decl or node.kind == .expr_function_type)
start :: if (node.kind == .func_decl) node.main.extra + 4 else node.data0.extra
debug.assert(index < usize(node.data1.extra - start))
return NodeId(tree.storage.extra.items[usize(start) + index])
}
param proc(tree @Tree, id NodeId) ParamView {
@@ -1103,6 +1127,7 @@ expression_kind proc(kind NodeKind) ExprKind {
.expr_range: .range
.expr_array_type: .array_type
.expr_pointer_type: .pointer_type
.expr_function_type: .function_type
.expr_array_literal: .array_literal
.expr_record_type: .record_type
.expr_record_literal: .record_literal