Generator variant line info

dwarf-dump.txt

0x00000935:   DW_TAG_namespace
                DW_AT_name      ("generator_simple")

0x0000093a:     DW_TAG_namespace
                  DW_AT_name    ("example")

0x0000093f:       DW_TAG_structure_type
                    DW_AT_name  ("generator-0")
                    DW_AT_byte_size     (0x20)
                    DW_AT_alignment     (8)

0x00000946:         DW_TAG_variant_part
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0x0000094b:           DW_TAG_member
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                        DW_AT_artificial        (true)

0x00000956:           DW_TAG_variant
                        DW_AT_discr_value       (0x00)

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                          DW_AT_decl_line       (5)
                          DW_AT_alignment       (8)
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0x00000965:             NULL

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                        DW_AT_discr_value       (0x01)

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                          DW_AT_alignment       (8)
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0x00000975:             NULL

0x00000976:           DW_TAG_variant
                        DW_AT_discr_value       (0x02)

0x00000978:             DW_TAG_member
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                          DW_AT_type    (0x000009b5 "Panicked")
                          DW_AT_decl_file       ("/home/tmandry/code/playground/generator-simple.rs")
                          DW_AT_decl_line       (9)
                          DW_AT_alignment       (8)
                          DW_AT_data_member_location    (0x00)

0x00000985:             NULL

0x00000986:           DW_TAG_variant
                        DW_AT_discr_value       (0x03)

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0x00000995:             NULL

0x00000996:           DW_TAG_variant
                        DW_AT_discr_value       (0x04)

0x00000998:             DW_TAG_member
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                          DW_AT_decl_file       ("/home/tmandry/code/playground/generator-simple.rs")
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0x000009a5:             NULL

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0x000009c3:         DW_TAG_structure_type
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0x000009ca:           DW_TAG_member
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                        DW_AT_data_member_location      (0x00)

0x000009d5:           NULL

0x000009d6:         NULL

0x000009d7:       NULL

0x000009d8:     NULL

generator-simple.rs

#![feature(generators, generator_trait)]
use std::ops::Generator;

fn example() -> impl Generator<Yield = i32, Return = ()> {
    || {
        yield 0;
        let s = String::from("foo");
        yield 1;
    }
}

fn main() {
    example();
}