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feat: ir for declarations and semantic analyzer start

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Brett Broadhurst 2026-03-09 05:57:25 -06:00
parent f16162b5bb
commit 197a37ebe7
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4 changed files with 453 additions and 145 deletions
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54
src/Story.zig
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@ -3,6 +3,7 @@ const std = @import("std");
const tokenizer = @import("tokenizer.zig");
const Ast = @import("Ast.zig");
const AstGen = @import("AstGen.zig");
const Sema = @import("Sema.zig");
pub const Object = @import("Story/object.zig").Object;
const Dumper = @import("Story/Dumper.zig");
const assert = std.debug.assert;
@ -481,11 +482,11 @@ pub fn loadFromString(
) !Story {
var arena_allocator = std.heap.ArenaAllocator.init(gpa);
defer arena_allocator.deinit();
const arena = arena_allocator.allocator();
const ast = try Ast.parse(gpa, arena, source_bytes, "<STDIN>", 0);
if (options.dump_writer) |w| {
try w.writeAll("=== AST ===\n");
try ast.render(gpa, w, .{
.use_color = options.use_color,
});
@ -497,48 +498,25 @@ pub fn loadFromString(
return error.Invalid;
}
const comp_unit = try AstGen.generate(gpa, &ast);
defer comp_unit.deinit(gpa);
comp_unit.dumpStringsWithHex();
var sem_ir = try AstGen.generate(gpa, &ast);
defer sem_ir.deinit(gpa);
if (options.dump_writer) |w| {
try w.writeAll("=== Semantic IR ===\n");
sem_ir.dumpStringsWithHex();
try sem_ir.render(gpa, w);
}
var compiled = try Sema.compile(gpa, &sem_ir);
defer compiled.deinit(gpa);
var story: Story = .{
.allocator = gpa,
.can_advance = false,
.dump_writer = options.dump_writer,
};
errdefer story.deinit();
for (comp_unit.knots) |compiled_chunk| {
const chunk_name = comp_unit.resolveString(compiled_chunk.name_ref);
var constant_pool: std.ArrayList(*Object) = .empty;
try constant_pool.ensureUnusedCapacity(gpa, compiled_chunk.constants.len);
defer constant_pool.deinit(gpa);
for (comp_unit.resolveConstants(compiled_chunk.constants)) |constant| {
switch (constant) {
.number => |value| {
const object: *Object.Number = try .create(&story, .{ .integer = value });
constant_pool.appendAssumeCapacity(&object.base);
},
.string => |ref| {
const bytes = comp_unit.resolveString(ref);
const object: *Object.String = try .create(&story, bytes);
constant_pool.appendAssumeCapacity(&object.base);
},
}
}
const runtime_chunk: *Object.ContentPath = try .create(&story, .{
.name = try .create(&story, chunk_name),
.arity = @intCast(compiled_chunk.arity),
.locals_count = @intCast(compiled_chunk.stack_size - compiled_chunk.arity),
.const_pool = try constant_pool.toOwnedSlice(gpa),
.bytes = try gpa.dupe(u8, comp_unit.resolveInstructions(compiled_chunk.instructions)),
});
try story.paths.append(gpa, &runtime_chunk.base);
}
try story.divert("$__main__$");
story.can_advance = true;
try compiled.buildRuntime(gpa, sem_ir, &story);
// try story.divert("$__main__$");
// story.can_advance = true;
return story;
}