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Push updates - still WIP

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This commit is contained in:
Richard Dodd
2018-08-09 21:38:37 +01:00
parent 1e02ca7eab
commit 615f8fbc4d
4 changed files with 71 additions and 35 deletions
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23
crates/backend/src/codegen.rs
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@ -64,7 +64,7 @@ impl TryToTokens for ast::Program {
}
}
for m in self.modules.iter() {
if let Err(e) = m.try_to_tokens(tokens) {
if let Err(e) = ModuleInIter::from(m).try_to_tokens(tokens) {
errors.push(e);
}
}
@ -1111,15 +1111,28 @@ impl ToTokens for ast::Const {
}
}
impl TryToTokens for ast::Module {
/// Struct to help implementing TryToTokens over the key/value pairs from the hashmap.
struct ModuleInIter<'a> {
name: &'a Ident,
module: &'a ast::Module
}
impl<'a> From<(&'a Ident, &'a ast::Module)> for ModuleInIter<'a> {
fn from((name, module): (&'a Ident, &'a ast::Module)) -> ModuleInIter<'a> {
ModuleInIter { name, module }
}
}
impl<'a> TryToTokens for ModuleInIter<'a> {
fn try_to_tokens(&self, tokens: &mut TokenStream) -> Result<(), Diagnostic> {
let name = &self.name;
let imports = &self.module.imports;
let mut errors = Vec::new();
for i in self.imports.iter() {
for i in imports.iter() {
DescribeImport(&i.kind).to_tokens(tokens);
}
let name = &self.name;
let mut body = TokenStream::new();
for i in self.imports.iter() {
for i in imports.iter() {
if let Err(e) = i.kind.try_to_tokens(&mut body) {
errors.push(e);
}