ir: parse ptrtoint
parent
49e2f3ca36
commit
bd37c8d8ed
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@ -150,7 +150,7 @@ pub fn parseRoot(ctx: *ParseContext) !void {
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while (ctx.i < ctx.source.len) : (ctx.i += 1) switch (ctx.source[ctx.i]) {
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';' => _ = try skipToAndOver(ctx, '\n'),
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'@' => {
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const at_start = ctx.i;
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ctx.i += 1;
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const ident = try skipToAndOver(ctx, ' ');
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const opt_type = try parseOptionalType(ctx);
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const inst = try parseInstruction(ctx, opt_type);
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@ -298,7 +298,24 @@ fn parseParameterGeneric(ctx: *ParseContext, comptime T: type) !T {
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switch (T) {
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Inst.Fn.Body => return parseBody(ctx),
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Inst.OtherInst => {
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return parseError(ctx, "TODO implement parseParameterGeneric for OtherInst", .{});
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const map = switch (ctx.source[ctx.i]) {
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'@' => ctx.global_name_map,
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'%' => return parseError(ctx, "TODO implement OtherInst for %", .{}),
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else => |byte| return parseError(ctx, "unexpected byte: '{c}'", .{byte}),
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};
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ctx.i += 1;
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const name_start = ctx.i;
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while (ctx.i < ctx.source.len) : (ctx.i += 1) switch (ctx.source[ctx.i]) {
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';', ' ', '\n', ',', ')' => break,
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else => continue,
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};
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const ident = ctx.source[name_start..ctx.i];
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const kv = map.get(ident) orelse {
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const bad_name = ctx.source[name_start - 1 .. ctx.i];
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ctx.i = name_start - 1;
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return parseError(ctx, "unrecognized identifier: {}", .{bad_name});
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};
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return Inst.OtherInst{ .index = kv.value };
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},
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Value => return parseError(ctx, "TODO implement parseParameterGeneric for type Value", .{}),
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else => @compileError("Unimplemented: ir parseParameterGeneric for type " ++ @typeName(T)),
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@ -319,7 +336,7 @@ fn parseBody(ctx: *ParseContext) !Inst.Fn.Body {
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while (ctx.i < ctx.source.len) : (ctx.i += 1) switch (ctx.source[ctx.i]) {
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';' => _ = try skipToAndOver(ctx, '\n'),
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'%' => {
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const at_start = ctx.i;
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ctx.i += 1;
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const ident = try skipToAndOver(ctx, ' ');
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const opt_type = try parseOptionalType(ctx);
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const inst = try parseInstruction(ctx, opt_type);
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@ -452,3 +469,6 @@ fn findLineColumn(source: []const u8, byte_offset: usize) struct { line: usize,
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}
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return .{ .line = line, .column = column };
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}
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// Performance optimization ideas:
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// * make the source code sentinel-terminated, so that all the checks against the length can be skipped
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