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Merge pull request #47 from birth-software/basic-conditional-compilation

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basic conditional compilation
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David 2024-01-29 06:53:13 +01:00 committed by GitHub
commit 21d91b9c7d
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1 changed files with 26 additions and 29 deletions
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55
bootstrap/Compilation.zig
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@ -1269,36 +1269,18 @@ pub const Builder = struct {
const If = struct{
condition: Condition,
const Condition = union(enum){
true: Value.Index,
true,
false,
runtime: Value.Index,
runtime,
};
};
fn resolveIf(builder: *Builder, unit: *Unit, context: *const Context, node_index: Node.Index) !If {
const if_node = unit.getNode(node_index);
assert(if_node.id == .@"if");
_ = builder; // autofix
_ = unit; // autofix
_ = context; // autofix
_ = node_index; // autofix
const condition = try builder.resolveValueAllocate(unit, context, Type.Expect{
.type = .bool,
}, if_node.left);
assert(condition != .null);
if (unit.evaluateBooleanAtComptime(condition)) |comptime_condition| {
if (comptime_condition == true) {
@panic("TODO: if comptime true");
// return If{
// .condition = .true,
// };
} else {
return If{
.condition = .false,
};
}
} else {
try builder.insertDebugCheckPoint(unit, context, if_node.token);
unreachable;
}
unreachable;
}
@ -1915,17 +1897,32 @@ pub const Builder = struct {
assert(node.left != .null);
assert(node.right != .null);
const if_result = try builder.resolveIf(unit, context, node.left);
switch (if_result.condition) {
.false => {
const if_node = unit.getNode(node.left);
assert(if_node.id == .@"if");
const condition = try builder.resolveValueAllocate(unit, context, Type.Expect{
.type = .bool,
}, if_node.left);
assert(condition != .null);
if (unit.evaluateBooleanAtComptime(condition)) |comptime_condition| {
if (comptime_condition == true) {
value.* = .{
.unresolved = if_node.right,
};
try builder.resolveValue(unit, context, Type.Expect{
.type = .void,
}, value_index);
} else {
value.* = .{
.unresolved = node.right,
};
try builder.resolveValue(unit, context, Type.Expect{
.type = .void,
}, value_index);
},
else => |t| @panic(@tagName(t)),
}
} else {
try builder.insertDebugCheckPoint(unit, context, if_node.token);
unreachable;
}
},
.field_access => {