dimgigov
7ee6a73ea4
Add standard library modules: - Std::String: strlen, strcmp, concat, copy, starts_with wrappers - Std::Map: linear-probing hash map with String keys, int values Add error handling: - Result and Option algebraic enum examples - ? try operator for automatic error propagation in HIR lowering Compiler bugfixes: - Fix sizeof() for user-defined structs (new hSizeOf HIR node) - Fix HIR type lowering for char8, bool8, int8, uint8, etc. - Fix let statement lowering for pointer types (*char8 → int* bug) - Fix PrintInt ABI mismatch (int64_t → int in io.c) - Fix Makefile test bug (_test_tmp_pkg already exists) Documentation: - Rewrite README.md with features, examples, project structure - Add docs/LanguageRef.md — complete language reference - Add docs/Stdlib.md — standard library documentation - Add docs/BuildAndTest.md — build and test guide New examples: strings, map, result_option, try_operator (13 total)
59 lines
1.2 KiB
Plaintext
59 lines
1.2 KiB
Plaintext
// Try operator ? - Error propagation
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import Std::Io::{PrintLine, PrintInt};
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enum Result {
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Ok(int),
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Err(String)
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}
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func Result_NewOk(value: int) -> Result {
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let r: Result = Result { tag: Result_Ok };
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r.data.Ok_0 = value;
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return r;
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}
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func Result_NewErr(msg: String) -> Result {
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let r: Result = Result { tag: Result_Err };
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r.data.Err_0 = msg;
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return r;
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}
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func Divide(a: int, b: int) -> Result {
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if b == 0 {
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return Result_NewErr("division by zero");
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}
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return Result_NewOk(a / b);
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}
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func Compute() -> Result {
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let x: int = Divide(10, 2)?;
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let y: int = Divide(x, 5)?;
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return Result_NewOk(y);
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}
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func ComputeWithError() -> Result {
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let x: int = Divide(10, 0)?;
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let y: int = Divide(x, 5)?;
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return Result_NewOk(y);
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}
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func Main() -> int {
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PrintLine("Try operator demo:");
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let r1: Result = Compute();
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if r1.tag == Result_Ok {
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PrintLine("Compute() = ");
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PrintInt(r1.data.Ok_0);
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PrintLine("");
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} else {
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PrintLine("Compute() failed");
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}
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let r2: Result = ComputeWithError();
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if r2.tag == Result_Err {
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PrintLine("ComputeWithError() failed as expected");
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}
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return 0;
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}
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