Getting the left and right sides.

This commit is contained in:
Tom Alexander 2020-05-10 14:22:59 -04:00
parent 012028b0bc
commit 7a8247f38a
Signed by: talexander
GPG Key ID: D3A179C9A53C0EDE
4 changed files with 38 additions and 4 deletions

View File

@ -0,0 +1,5 @@
Without a key parameter, neither the main block nor the else block is rendered.
Without a value parameter, it probably uses "null" but I haven't yet confirmed that with additional testing. Potentially could also just be making all falsey values equal.
Literal values work in both keys and values.

View File

@ -8,3 +8,8 @@ beta is {beta}{~n}
{@eq key=int value="7"}int is equal to "7"{:else}int does not equal "7"{/eq}{~n} {@eq key=int value="7"}int is equal to "7"{:else}int does not equal "7"{/eq}{~n}
{@eq key=int value=7}int is equal to 7{:else}int does not equal 7{/eq}{~n} {@eq key=int value=7}int is equal to 7{:else}int does not equal 7{/eq}{~n}
{@eq key=alpha value=beta}alpha is equal to beta{:else}alpha does not equal beta{/eq}{~n} {@eq key=alpha value=beta}alpha is equal to beta{:else}alpha does not equal beta{/eq}{~n}
{@eq value=beta}missing key is true{:else}missing key is false{/eq}{~n}
{@eq value=gamma}missing key and non-existent value is true{:else}missing key and non-existent value is false{/eq}{~n}
{@eq key=alpha}missing value is true{:else}missing value is false{/eq}{~n}
{@eq key=gamma}missing value and non-existent key is true{:else}missing value and non-existent key is false{/eq}{~n}
{@eq key="master" value="master"}"master" is equal to "master"{:else}"master" does not equal "master"{/eq}{~n}

View File

@ -106,10 +106,10 @@ pub struct NamedBlock<'a> {
#[derive(Clone, Debug, PartialEq)] #[derive(Clone, Debug, PartialEq)]
pub struct ParameterizedBlock<'a> { pub struct ParameterizedBlock<'a> {
name: &'a str, pub name: &'a str,
params: Vec<KVPair<'a>>, pub params: Vec<KVPair<'a>>,
contents: Option<Body<'a>>, pub contents: Option<Body<'a>>,
else_contents: Option<Body<'a>>, pub else_contents: Option<Body<'a>>,
} }
#[derive(Clone, Debug, PartialEq)] #[derive(Clone, Debug, PartialEq)]

View File

@ -1,6 +1,8 @@
use crate::parser::template; use crate::parser::template;
use crate::parser::Body; use crate::parser::Body;
use crate::parser::DustTag; use crate::parser::DustTag;
use crate::parser::KVPair;
use crate::parser::RValue;
use crate::parser::Special; use crate::parser::Special;
use crate::parser::Template; use crate::parser::Template;
use crate::parser::TemplateElement; use crate::parser::TemplateElement;
@ -222,6 +224,28 @@ impl<'a> DustRenderer<'a> {
}, },
}; };
} }
DustTag::DTHelperEquals(parameterized_block) => {
let param_map: HashMap<&'a str, &'a RValue<'a>> = parameterized_block
.params
.iter()
.map(|pair: &KVPair<'a>| (pair.key, &pair.value))
.collect();
let left_side: Result<&dyn ContextElement, WalkError> = match param_map.get("key") {
None => return Ok("".to_owned()),
Some(rval) => match rval {
RValue::RVString(text) => Ok(text),
RValue::RVPath(path) => walk_path(breadcrumbs, &path.keys),
},
};
let right_side: Result<&dyn ContextElement, WalkError> =
match param_map.get("value") {
None => Err(WalkError::CantWalk),
Some(rval) => match rval {
RValue::RVString(text) => Ok(text),
RValue::RVPath(path) => walk_path(breadcrumbs, &path.keys),
},
};
}
_ => (), // TODO: Implement the rest _ => (), // TODO: Implement the rest
} }
Ok("".to_owned()) Ok("".to_owned())