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Flatten statement blocks.

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This commit is contained in:
Stephen Chung
2021-03-10 12:27:10 +08:00
parent 2ff2789326
commit 352408fd36
6 changed files with 356 additions and 229 deletions
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3
tests/optimizer.rs
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@@ -54,9 +54,8 @@ fn test_optimizer_parse() -> Result<(), Box<EvalAltResult>> {
engine.set_optimization_level(OptimizationLevel::Simple);
let ast = engine.compile("{ const DECISION = false; if DECISION { 42 } else { 123 } }")?;
println!("{:?}", ast);
assert!(format!("{:?}", ast).starts_with(r#"AST { source: None, statements: [Block([Const(BoolConstant(false, 1:20), Ident("DECISION" @ 1:9), 1:3), Expr(IntegerConstant(123, 1:53))], 1:1)], functions: Module("#));
assert!(format!("{:?}", ast).starts_with(r#"AST { source: None, statements: [Block([Const(BoolConstant(false, 1:20), Ident("DECISION" @ 1:9), false, 1:3), Expr(IntegerConstant(123, 1:53))], 1:1)], functions: Module("#));
let ast = engine.compile("if 1 == 2 { 42 }")?;