|
| 1 | +# SemVer to Zerv Conversion - Clean Implementation |
| 2 | + |
| 3 | +```rust |
| 4 | +use super::{ |
| 5 | + BuildMetadata, |
| 6 | + PreReleaseIdentifier, |
| 7 | + SemVer, |
| 8 | +}; |
| 9 | +use crate::error::ZervError; |
| 10 | +use crate::version::zerv::core::PreReleaseLabel; |
| 11 | +use crate::version::zerv::{ |
| 12 | + Component, |
| 13 | + PreReleaseVar, |
| 14 | + Var, |
| 15 | + Zerv, |
| 16 | + ZervSchema, |
| 17 | + ZervVars, |
| 18 | +}; |
| 19 | + |
| 20 | +struct PreReleaseProcessor<'a> { |
| 21 | + vars: &'a mut ZervVars, |
| 22 | + schema: &'a mut ZervSchema, |
| 23 | + pending_var: Option<Var>, |
| 24 | +} |
| 25 | + |
| 26 | +impl<'a> PreReleaseProcessor<'a> { |
| 27 | + fn new(vars: &'a mut ZervVars, schema: &'a mut ZervSchema) -> Self { |
| 28 | + Self { |
| 29 | + vars, |
| 30 | + schema, |
| 31 | + pending_var: None, |
| 32 | + } |
| 33 | + } |
| 34 | + |
| 35 | + fn is_var_set(&self, var: &Var) -> bool { |
| 36 | + match var { |
| 37 | + Var::PreRelease => self.vars.pre_release.is_some() || self.pending_var == Some(Var::PreRelease), |
| 38 | + Var::Epoch => self.vars.epoch.is_some() || self.pending_var == Some(Var::Epoch), |
| 39 | + Var::Post => self.vars.post.is_some() || self.pending_var == Some(Var::Post), |
| 40 | + Var::Dev => self.vars.dev.is_some() || self.pending_var == Some(Var::Dev), |
| 41 | + _ => false, |
| 42 | + } |
| 43 | + } |
| 44 | + |
| 45 | + fn handle_pending_prerelease(&mut self, identifier: &PreReleaseIdentifier) -> Result<bool, ZervError> { |
| 46 | + if let Some(Var::PreRelease) = self.pending_var { |
| 47 | + if let PreReleaseIdentifier::String(_) = identifier { |
| 48 | + self.schema.push_extra_core(Component::Var(Var::PreRelease))?; |
| 49 | + self.pending_var = None; |
| 50 | + return Ok(true); |
| 51 | + } |
| 52 | + } |
| 53 | + Ok(false) |
| 54 | + } |
| 55 | + |
| 56 | + fn handle_duplicate(&mut self, var: Var, s: &str) -> Result<bool, ZervError> { |
| 57 | + if let Some(pending) = self.pending_var { |
| 58 | + if let Some(current_var) = Var::try_from_secondary_label(s) { |
| 59 | + if current_var == pending || self.is_var_set(¤t_var) { |
| 60 | + self.schema.push_extra_core(Component::Var(pending))?; |
| 61 | + self.pending_var = None; |
| 62 | + self.schema.push_extra_core(Component::Str(s.to_string()))?; |
| 63 | + return Ok(true); |
| 64 | + } |
| 65 | + } |
| 66 | + } |
| 67 | + Ok(false) |
| 68 | + } |
| 69 | + |
| 70 | + fn set_var_value(&mut self, var: Var, value: Option<u64>) -> Result<(), ZervError> { |
| 71 | + match var { |
| 72 | + Var::Epoch => self.vars.epoch = value, |
| 73 | + Var::Post => self.vars.post = value, |
| 74 | + Var::Dev => self.vars.dev = value, |
| 75 | + Var::PreRelease => { |
| 76 | + if let Some(ref mut pr) = self.vars.pre_release { |
| 77 | + pr.number = value; |
| 78 | + } |
| 79 | + } |
| 80 | + _ => {} |
| 81 | + } |
| 82 | + self.schema.push_extra_core(Component::Var(var))?; |
| 83 | + self.pending_var = None; |
| 84 | + Ok(()) |
| 85 | + } |
| 86 | + |
| 87 | + fn process_string(&mut self, s: &str) -> Result<(), ZervError> { |
| 88 | + if let Some(var) = Var::try_from_secondary_label(s) { |
| 89 | + if self.is_var_set(&var) { |
| 90 | + self.schema.push_extra_core(Component::Str(s.to_string()))?; |
| 91 | + } else if var == Var::PreRelease { |
| 92 | + if let Some(label) = PreReleaseLabel::try_from_str(s) { |
| 93 | + self.vars.pre_release = Some(PreReleaseVar { label, number: None }); |
| 94 | + self.pending_var = Some(var); |
| 95 | + } else { |
| 96 | + self.schema.push_extra_core(Component::Str(s.to_string()))?; |
| 97 | + } |
| 98 | + } else { |
| 99 | + self.pending_var = Some(var); |
| 100 | + } |
| 101 | + } else { |
| 102 | + self.schema.push_extra_core(Component::Str(s.to_string()))?; |
| 103 | + } |
| 104 | + Ok(()) |
| 105 | + } |
| 106 | + |
| 107 | + fn process_uint(&mut self, n: u64) -> Result<(), ZervError> { |
| 108 | + if let Some(var) = self.pending_var { |
| 109 | + self.set_var_value(var, Some(n)) |
| 110 | + } else { |
| 111 | + self.schema.push_extra_core(Component::Int(n)) |
| 112 | + } |
| 113 | + } |
| 114 | + |
| 115 | + fn finalize(&mut self) -> Result<(), ZervError> { |
| 116 | + if let Some(var) = self.pending_var { |
| 117 | + self.schema.push_extra_core(Component::Var(var))?; |
| 118 | + } |
| 119 | + Ok(()) |
| 120 | + } |
| 121 | +} |
| 122 | + |
| 123 | +impl From<SemVer> for Zerv { |
| 124 | + fn from(semver: SemVer) -> Self { |
| 125 | + let schema = ZervSchema::semver_default().expect("SemVer default schema should be valid"); |
| 126 | + semver |
| 127 | + .to_zerv_with_schema(&schema) |
| 128 | + .expect("SemVer default conversion should work") |
| 129 | + } |
| 130 | +} |
| 131 | + |
| 132 | +impl SemVer { |
| 133 | + pub fn to_zerv_with_schema(&self, schema: &ZervSchema) -> Result<Zerv, ZervError> { |
| 134 | + if *schema != ZervSchema::semver_default()? { |
| 135 | + return Err(ZervError::NotImplemented( |
| 136 | + "Custom schemas not yet implemented for SemVer conversion".to_string(), |
| 137 | + )); |
| 138 | + } |
| 139 | + |
| 140 | + let mut vars = ZervVars { |
| 141 | + major: Some(self.major), |
| 142 | + minor: Some(self.minor), |
| 143 | + patch: Some(self.patch), |
| 144 | + ..Default::default() |
| 145 | + }; |
| 146 | + |
| 147 | + let mut schema = schema.clone(); |
| 148 | + let mut processor = PreReleaseProcessor::new(&mut vars, &mut schema); |
| 149 | + |
| 150 | + // Process pre-release identifiers |
| 151 | + if let Some(pre_release) = &self.pre_release { |
| 152 | + for identifier in pre_release { |
| 153 | + // Handle pending PreRelease var |
| 154 | + if processor.handle_pending_prerelease(identifier)? { |
| 155 | + continue; |
| 156 | + } |
| 157 | + |
| 158 | + // Handle pending var with potential duplicates |
| 159 | + if let PreReleaseIdentifier::String(s) = identifier { |
| 160 | + if processor.handle_duplicate(processor.pending_var.unwrap_or(Var::Major), s)? { |
| 161 | + continue; |
| 162 | + } |
| 163 | + } |
| 164 | + |
| 165 | + // Process pending var value |
| 166 | + if processor.pending_var.is_some() { |
| 167 | + let value = match identifier { |
| 168 | + PreReleaseIdentifier::UInt(n) => Some(*n), |
| 169 | + _ => None, |
| 170 | + }; |
| 171 | + processor.set_var_value(processor.pending_var.unwrap(), value)?; |
| 172 | + continue; |
| 173 | + } |
| 174 | + |
| 175 | + // Process new identifier |
| 176 | + match identifier { |
| 177 | + PreReleaseIdentifier::String(s) => processor.process_string(s)?, |
| 178 | + PreReleaseIdentifier::UInt(n) => processor.process_uint(*n)?, |
| 179 | + } |
| 180 | + } |
| 181 | + } |
| 182 | + |
| 183 | + processor.finalize()?; |
| 184 | + |
| 185 | + // Handle build metadata |
| 186 | + if let Some(build_metadata) = &self.build_metadata { |
| 187 | + for metadata in build_metadata { |
| 188 | + let component = match metadata { |
| 189 | + BuildMetadata::String(s) => Component::Str(s.clone()), |
| 190 | + BuildMetadata::UInt(n) => Component::Int(*n), |
| 191 | + }; |
| 192 | + schema.push_build(component)?; |
| 193 | + } |
| 194 | + } |
| 195 | + |
| 196 | + Ok(Zerv { vars, schema }) |
| 197 | + } |
| 198 | +} |
| 199 | +``` |
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