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Remove the Value::Block case (#12582)

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# Description
`Value` describes the types of first-class values that users and scripts
can create, manipulate, pass around, and store. However, `Block`s are
not first-class values in the language, so this PR removes it from
`Value`. This removes some unnecessary code, and this change should be
invisible to the user except for the change to `scope modules` described
below.

# User-Facing Changes
Breaking change: the output of `scope modules` was changed so that
`env_block` is now `has_env_block` which is a boolean value instead of a
`Block`.

# After Submitting
Update the language guide possibly.
This commit is contained in:
Ian Manske
2024-04-21 05:03:33 +00:00
committed by GitHub
parent 5fd34320e9
commit 3b1d405b96
32 changed files with 171 additions and 352 deletions
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4
crates/nu-command/src/debug/view_source.rs
View File

@ -173,8 +173,8 @@ impl Command for ViewSource {
}
}
value => {
if let Ok(block_id) = value.coerce_block() {
let block = engine_state.get_block(block_id);
if let Ok(closure) = value.as_closure() {
let block = engine_state.get_block(closure.block_id);
if let Some(span) = block.span {
let contents = engine_state.get_span_contents(span);