Zig 0.17.0-dev (Split by item)

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structInitExprTyped

A struct initialization expression using a struct_init or struct_init_ref instruction.

AstGen.structInitExprTyped

fn structInitExprTyped(
    gz: *GenZir,
    scope: *Scope,
    node: Ast.Node.Index,
    struct_init: Ast.full.StructInit,
    ty_inst: Zir.Inst.Ref,
    is_ref: bool,
) InnerError!Zir.Inst.Ref

File

lib/std/zig/AstGen.zig:1907

Code

fn structInitExprTyped(
    gz: *GenZir,
    scope: *Scope,
    node: Ast.Node.Index,
    struct_init: Ast.full.StructInit,
    ty_inst: Zir.Inst.Ref,
    is_ref: bool,
) InnerError!Zir.Inst.Ref {
    const astgen = gz.astgen;
    const tree = astgen.tree;

    const payload_index = try addExtra(astgen, Zir.Inst.StructInit{
        .abs_node = node,
        .abs_line = astgen.source_line,
        .fields_len = @intCast(struct_init.ast.fields.len),
    });
    const field_size = @typeInfo(Zir.Inst.StructInit.Item).@"struct".field_names.len;
    var extra_index: usize = try reserveExtra(astgen, struct_init.ast.fields.len * field_size);

    for (struct_init.ast.fields) |field_init| {
        const name_token = tree.firstToken(field_init) - 2;
        const str_index = try astgen.identAsString(name_token);
        const field_ty_inst = try gz.addPlNode(.struct_init_field_type, field_init, Zir.Inst.FieldType{
            .container_type = ty_inst,
            .name_start = str_index,
        });
        setExtra(astgen, extra_index, Zir.Inst.StructInit.Item{
            .field_type = field_ty_inst.toIndex().?,
            .init = try expr(gz, scope, .{ .rl = .{ .coerced_ty = field_ty_inst } }, field_init),
        });
        extra_index += field_size;
    }

    const tag: Zir.Inst.Tag = if (is_ref) .struct_init_ref else .struct_init;
    return gz.addPlNodePayloadIndex(tag, node, payload_index);
}