vox.fe.ast.decl.static_if source code

1 /// Copyright: Copyright (c) 2017-2019 Andrey Penechko.
2 /// License: $(WEB boost.org/LICENSE_1_0.txt, Boost License 1.0).
3 /// Authors: Andrey Penechko.
4 module vox.fe.ast.decl.static_if;
5 
6 import vox.all;
7 
8 
9 mixin template ConditionalDeclNodeData(AstType _astType, int default_flags = 0, AstNodeState _init_state = AstNodeState.parse_done) {
10 	mixin AstNodeData!(_astType, default_flags, _init_state);
11 	AstIndex next; // Next conditional declaration. Used during expansion
12 	AstIndex prev; // Prev conditional declaration. Used during expansion
13 	uint arrayIndex; // Index into AstNodes of the parent node, where items are to be inserted
14 }
15 
16 // Abstract node, must not be instantiated
17 struct ConditionalDeclNode
18 {
19 	mixin ConditionalDeclNodeData!(AstType.abstract_node);
20 }
21 
22 
23 @(AstType.decl_static_if)
24 struct StaticIfDeclNode
25 {
26 	mixin ConditionalDeclNodeData!(AstType.decl_static_if);
27 	AstIndex condition;
28 	AstNodes thenItems; // can be empty
29 	AstNodes elseItems; // can be empty
30 }
31 
32 void print_static_if(StaticIfDeclNode* node, ref AstPrintState state)
33 {
34 	state.print("#IF");
35 	print_ast(node.condition, state);
36 	state.print("#THEN");
37 	print_ast(node.thenItems, state);
38 	state.print("#ELSE");
39 	print_ast(node.elseItems, state);
40 }
41 
42 void post_clone_static_if(StaticIfDeclNode* node, ref CloneState state)
43 {
44 	state.fixAstIndex(node.condition);
45 	state.fixAstNodes(node.thenItems);
46 	state.fixAstNodes(node.elseItems);
47 }
48 
49 
50 @(AstType.decl_static_version)
51 struct StaticVersionDeclNode
52 {
53 	mixin ConditionalDeclNodeData!(AstType.decl_static_version);
54 	Identifier versionId;
55 	AstNodes thenItems; // can be empty
56 	AstNodes elseItems; // can be empty
57 }
58 
59 void print_static_version(StaticVersionDeclNode* node, ref AstPrintState state)
60 {
61 	state.print("#VERSION", state.context.idString(node.versionId));
62 	state.print("#THEN");
63 	print_ast(node.thenItems, state);
64 	state.print("#ELSE");
65 	print_ast(node.elseItems, state);
66 }
67 
68 void post_clone_static_version(StaticVersionDeclNode* node, ref CloneState state)
69 {
70 	state.fixAstNodes(node.thenItems);
71 	state.fixAstNodes(node.elseItems);
72 }