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refactor: move into function on BlockData

pull/24376/head
Edd Robinson 2020-07-13 10:48:58 +01:00
parent 627805c567
commit ec9ed12fcb
1 changed files with 52 additions and 59 deletions
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111
delorean_tsm/src/reader.rs
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@ -298,6 +298,57 @@ pub enum BlockData {
} }
impl BlockData { impl BlockData {
/// Initialise an empty `BlockData` with capacity `other.len()` values.
fn new_from_data(other: &Self) -> Self {
match other {
Self::Float {
i: _,
ts: _,
values: _,
} => Self::Float {
i: 0,
ts: Vec::with_capacity(other.len()),
values: Vec::with_capacity(other.len()),
},
Self::Integer {
i: _,
ts: _,
values: _,
} => Self::Integer {
i: 0,
ts: Vec::with_capacity(other.len()),
values: Vec::with_capacity(other.len()),
},
Self::Bool {
i: _,
ts: _,
values: _,
} => Self::Bool {
i: 0,
ts: Vec::with_capacity(other.len()),
values: Vec::with_capacity(other.len()),
},
Self::Str {
i: _,
ts: _,
values: _,
} => Self::Str {
i: 0,
ts: Vec::with_capacity(other.len()),
values: Vec::with_capacity(other.len()),
},
Self::Unsigned {
i: _,
ts: _,
values: _,
} => Self::Unsigned {
i: 0,
ts: Vec::with_capacity(other.len()),
values: Vec::with_capacity(other.len()),
},
}
}
pub fn reserve_exact(&mut self, additional: usize) { pub fn reserve_exact(&mut self, additional: usize) {
match self { match self {
Self::Float { i: _, ts, values } => { Self::Float { i: _, ts, values } => {
@ -457,65 +508,7 @@ impl BlockData {
} }
// The merged output block data to be returned // The merged output block data to be returned
let mut block_data: Self; let mut block_data = Self::new_from_data(&blocks.first().unwrap());
let first = blocks.first().unwrap();
match first {
Self::Float {
i: _,
ts: _,
values: _,
} => {
block_data = Self::Float {
i: 0,
ts: Vec::with_capacity(first.len()),
values: Vec::with_capacity(first.len()),
}
}
Self::Integer {
i: _,
ts: _,
values: _,
} => {
block_data = Self::Integer {
i: 0,
ts: Vec::with_capacity(first.len()),
values: Vec::with_capacity(first.len()),
}
}
Self::Bool {
i: _,
ts: _,
values: _,
} => {
block_data = Self::Bool {
i: 0,
ts: Vec::with_capacity(first.len()),
values: Vec::with_capacity(first.len()),
}
}
Self::Str {
i: _,
ts: _,
values: _,
} => {
block_data = Self::Str {
i: 0,
ts: Vec::with_capacity(first.len()),
values: Vec::with_capacity(first.len()),
}
}
Self::Unsigned {
i: _,
ts: _,
values: _,
} => {
block_data = Self::Unsigned {
i: 0,
ts: Vec::with_capacity(first.len()),
values: Vec::with_capacity(first.len()),
}
}
}
// buf will hold the next candidates from each of the sorted input // buf will hold the next candidates from each of the sorted input
// blocks. // blocks.