diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/xixanta/src/assembler.rs | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/lib/xixanta/src/assembler.rs b/lib/xixanta/src/assembler.rs index bf7b5a0..2f09295 100644 --- a/lib/xixanta/src/assembler.rs +++ b/lib/xixanta/src/assembler.rs @@ -100,13 +100,20 @@ impl Assembler { // where scopes start/end, evaluating values for variables, labels, etc. self.eval_context(&parser.nodes)?; - // Finally convert the relevant nodes into binary bundles which can be - // used by the caller. + // Convert the relevant nodes into binary bundles which can be used by + // the caller. This is done for most nodes, even if some of them will + // have to be marked as pending, since they depend on knowing the exact + // size for a given segment. self.stage = Stage::Bundling; self.bundle(&parser.nodes)?; + // Now we know how much each segment spans, and we can resolve (crunch) + // the nodes marked as pending. self.stage = Stage::Crunching; - self.crunch_and_resolve_pending() + self.crunch()?; + + // All set, fill the vector of bundles to be returned. + self.fill() } pub fn eval_context(&mut self, nodes: &[PNode]) -> Result<(), Vec<Error>> { @@ -281,8 +288,7 @@ impl Assembler { } } - // TODO: maybe split? - pub fn crunch_and_resolve_pending(&mut self) -> Result<Vec<Bundle>, Vec<Error>> { + fn crunch(&mut self) -> Result<(), Vec<Error>> { let mut errors = vec![]; for pn in self.pending.clone() { @@ -310,6 +316,16 @@ impl Assembler { self.context.force_context_pop(); } + if errors.is_empty() { + Ok(()) + } else { + Err(errors) + } + } + + fn fill(&mut self) -> Result<Vec<Bundle>, Vec<Error>> { + let mut errors = vec![]; + // Validate the mappings that have been evaluated before spitting it // out. if let Err(e) = crate::mapping::validate(&self.mappings) { |