feat(ast): implement switch, case, and default - #67
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coverage: 92.455% (+0.1%) from 92.337% — feature/switch-case into master |
This was referenced Jul 24, 2026
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Add SwitchStatement/CaseLabel/DefaultLabel with if-chain codegen via ValueCompare. Break exits the switch by reusing loopStack (continue stays loop-only). Functional tests cover cases, default, fall-through, and case-outside-switch diagnostics.
Multiple default labels error without overwriting the first default target. DefaultLabel stores the default keyword for source locations instead of EXTERNAL_CONTEXT.
Case labels outside switch still get a codegen label. Non-constant case expressions error without being registered as jump targets. Test continue inside bare switch.
Diagnose equal case constant expressions in one switch (C constraint). Also cover continue from a switch nested in a loop (loop continue target).
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Summary
switch/case/default(grammar already present).break.Stack
PR 4/6 — stacks on #66 (goto) → #65 → #64.
Test plan
ctest