229 lines
8.0 KiB
Plaintext
229 lines
8.0 KiB
Plaintext
import "@std/mem"
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import "@std/arraylist"
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import "@std/enummap"
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import "@std/io"
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import "@std/process"
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import "@source/diagnostics"
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import "@source/strpool"
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import "@source/lexer"
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import "@source/ast"
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import "@source/parser"
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import "@source/sema"
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import "@source/ir"
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import "@source/lower"
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import "@source/interpreter"
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typecheck :: import "@source/sema/check"
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test import "@std/mem"
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test import "@std/enummap"
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test import "@std/arraylist"
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test import "@std/hashmap"
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test import "@std/strmap"
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test import "@std/meta"
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test import "@std/io"
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test import "@std/process"
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test import "@std/strconv"
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test import "@source/diagnostics"
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test import "@source/strpool"
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test import "@source/lexer"
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test import "@source/ast"
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test import "@source/parser"
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test import "@source/sema"
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test import "@source/sema/check"
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test import "@source/ir"
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test import "@source/lower"
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test import "@source/interpreter"
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@hide:file
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DriverError :: alias (
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mem.AllocError
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| diagnostics.CapacityError
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| lexer.SourceError
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| strpool.InternError
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| io.OpenError
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| io.CloseError
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| io.ReadError
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| io.WriteError
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)
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main proc(init process.Init) i32 {
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return command(mem.c_allocator, init.io, init.args) catch |err| {
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if (init.args.values.len > 2) {
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io.print("{s}: infrastructure error: {s}\n", io.stderr(init.io), {
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init.args.values[2], enummap.get(&infrastructure_messages, err)?,
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}) catch |_| {}
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} else {
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io.print("honey: infrastructure error: {s}\n", io.stderr(init.io), {
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enummap.get(&infrastructure_messages, err)?,
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}) catch |_| {}
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}
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return 2
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}
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}
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@hide:file
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infrastructure_messages :: $enummap.init(DriverError, []u8, {
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out_of_memory = "out of memory",
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diagnostic_limit_reached = "diagnostic limit reached",
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storage_limit_reached = "aggregate storage limit reached",
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source_too_large = "source file is too large",
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out_of_space = "identifier storage is full",
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open_failed = "cannot open source file",
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close_failed = "cannot close source file",
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not_open_for_reading = "source file is not readable",
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read_failed = "cannot read source file",
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not_open_for_writing = "output is not writable",
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write_failed = "cannot write output",
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no_progress = "output writer made no progress",
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})
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@hide:file
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command proc(allocator mem.Allocator, runtime io.Io, args process.Args) i32 ! DriverError {
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if (args.values.len != 3) {
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try io.print("usage: honey run <file>\n", io.stderr(runtime), {})
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return 2
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}
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if (!mem.eql(args.values[1], "run")) {
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try io.print("usage: honey run <file>\n", io.stderr(runtime), {})
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return 2
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}
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return try run_file(allocator, runtime, args.values[2])
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}
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@hide:file
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read_source proc(allocator mem.Allocator, runtime io.Io, path [;0]u8) arraylist.ArrayList(u8) ! DriverError {
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file :: try io.open(runtime, path, .read_only)
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closing := false
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defer {
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if (!closing) io.close(file) catch |_| {}
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}
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bytes := io.read_all(allocator, io.reader(file), usize(maxval!(u32))) catch |err| {
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match err {
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.limit_exceeded: return .source_too_large
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else: return err
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}
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}
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errdefer arraylist.deinit(&bytes)
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closing = true
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try io.close(file)
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return bytes
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}
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@hide:file
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compile proc(allocator mem.Allocator, source []u8, diagnostic_store @mut diagnostics.Store) ir.Module ! DriverError {
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strings := strpool.init(allocator)
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defer strpool.deinit(&strings)
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scan_state := lexer.init(allocator)
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defer lexer.deinit(&scan_state)
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try lexer.scan(&scan_state, source, &strings, diagnostic_store)
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tree := try parser.parse(allocator, scan_state.tokens.items, source, diagnostic_store)
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defer ast.deinit(&tree)
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resolution := try sema.resolve(allocator, &tree, &strings, diagnostic_store)
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defer sema.deinit(&resolution)
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checked := try typecheck.check(allocator, &tree, &resolution, diagnostic_store)
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defer typecheck.deinit(&checked)
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return try lower.lower(allocator, &tree, &resolution, &checked, diagnostic_store)
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}
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@hide:file
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run_file proc(allocator mem.Allocator, runtime io.Io, path [;0]u8) i32 ! DriverError {
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source := try read_source(allocator, runtime, path)
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defer arraylist.deinit(&source)
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diagnostic_store := diagnostics.init(allocator)
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defer diagnostics.deinit(&diagnostic_store)
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module := try compile(allocator, source.items, &diagnostic_store)
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defer ir.deinit(&module)
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outcome := try interpreter.run(allocator, &module, &diagnostic_store)
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defer interpreter.deinit(&outcome)
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if (outcome.trap == null) try print_result(io.stdout(runtime), &module, outcome.value)
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try report_diagnostics(allocator, io.stderr(runtime), path, source.items, &diagnostic_store, outcome.trap)
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if (outcome.trap != null or diagnostics.count(&diagnostic_store) != 0) return 1
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return 0
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}
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@hide:file
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print_result proc(output io.Writer, module @ir.Module, value ir.Value) void ! io.WriteError {
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if (value.type == .void) return
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try print_value(output, module, value)
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try io.print("\n", output, {})
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}
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@hide:file
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print_value proc(output io.Writer, module @ir.Module, value ir.Value) void ! io.WriteError {
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match value.type {
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.int: try io.print("{}", output, {value.data.integer})
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.usize: try io.print("{}", output, {value.data.unsigned})
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.float: try io.print("{d}", output, {value.data.real})
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.bool: try io.print("{}", output, {value.data.boolean})
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.string: try io.print("{s}", output, {ir.string_bytes(module, value.data.string)})
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.array: {
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shape :: module.arrays.items[usize(value.array_type)]
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stride usize :: if (shape.element == .array)
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module.arrays.items[usize(shape.element_array)].cells
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else
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1
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try io.print("[", output, {})
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for 0..(shape.len) |index| {
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if (index != 0) try io.print(", ", output, {})
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element := ir.Value{}
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if shape.element == .array {
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start :: index * stride
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element = ir.Value{
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type = .array,
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array_type = shape.element_array,
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data = ir.ValueData{ elements = value.data.elements[start..(start + stride)] },
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}
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} else {
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element = value.data.elements[index]
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}
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try print_value(output, module, element)
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}
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try io.print("]", output, {})
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}
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else: unreachable
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}
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}
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@hide:file
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report_diagnostics proc(
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allocator mem.Allocator,
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output io.Writer,
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path []u8,
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source []u8,
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diagnostic_store @diagnostics.Store,
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trap ?diagnostics.DiagnosticId,
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) void ! (mem.AllocError | io.WriteError) {
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if (diagnostics.count(diagnostic_store) == 0) return
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starts := arraylist.init(usize, allocator)
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defer arraylist.deinit(&starts)
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try arraylist.append(&starts, usize(0))
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for (source) |byte, index| {
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if (byte == '\n') try arraylist.append(&starts, index + 1)
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}
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for (0..diagnostics.count(diagnostic_store)) |index| {
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if (diagnostics.get(diagnostic_store, diagnostics.DiagnosticId(index))) |diagnostic| {
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offset :: usize(diagnostic.span.start)
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line := usize(0)
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end := starts.items.len
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while (line + 1 < end) {
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middle :: line + divtrunc!(end - line, 2)
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if (starts.items[middle] <= offset) line = middle
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else end = middle
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}
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label []u8 := "error"
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if (trap) |id| {
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if (id == diagnostics.DiagnosticId(index)) label = "runtime trap"
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}
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try io.print("{s}:{}:{}: {s}: {s}\n", output, {
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path,
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line + 1,
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offset - starts.items[line] + 1,
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label,
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enummap.get(diagnostics.Code, []u8, &diagnostics.messages, diagnostic.code)?,
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})
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}
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}
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}
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