gaia_assembler/backends/wasi/
mod.rs

1//! WASI (WebAssembly System Interface) backend compiler
2
3use super::{Backend, GeneratedFiles};
4use crate::{
5    config::GaiaConfig,
6    instruction::GaiaInstruction,
7    program::{GaiaConstant, GaiaFunction, GaiaProgram},
8    types::GaiaType,
9};
10use gaia_types::{
11    helpers::{AbiCompatible, ApiCompatible, Architecture, CompilationTarget},
12    *,
13};
14use std::collections::HashMap;
15use crate::adapters::FunctionMapper;
16
17/// WASI Backend implementation
18#[derive(Default)]
19pub struct WasiBackend {}
20
21impl Backend for WasiBackend {
22    fn name(&self) -> &'static str {
23        "WASI"
24    }
25
26    fn primary_target(&self) -> CompilationTarget {
27        CompilationTarget {
28            build: Architecture::WASM32,
29            host: AbiCompatible::WebAssemblyTextFormat,
30            target: ApiCompatible::WASI,
31        }
32    }
33
34    fn match_score(&self, target: &CompilationTarget) -> f32 {
35        match target.host {
36            AbiCompatible::WebAssemblyTextFormat => 10.0,
37            AbiCompatible::Unknown => match target.build {
38                // wat output, 5% support
39                Architecture::WASM32 => 5.0,
40                Architecture::WASM64 => 0.0,
41                _ => -100.0,
42            },
43            _ => -100.0,
44        }
45    }
46
47    fn generate(&self, program: &GaiaProgram, _config: &GaiaConfig) -> Result<GeneratedFiles> {
48        let mut files = HashMap::new();
49        files.insert("main.wasm".to_string(), compile(program)?);
50        Ok(GeneratedFiles { files, diagnostics: vec![] })
51    }
52}
53
54impl WasiBackend {
55    /// Generate WASI WebAssembly bytecode from Gaia program
56    pub fn generate(program: &GaiaProgram) -> Result<Vec<u8>> {
57        let mut context = create_wasi_context()?;
58        compile_program(&mut context, program)?;
59        generate_wasm_bytecode(&context)
60    }
61}
62
63/// Compile Gaia program to WASI WebAssembly
64pub fn compile(program: &GaiaProgram) -> Result<Vec<u8>> {
65    WasiBackend::generate(program)
66}
67
68/// Create WASI assembler context
69fn create_wasi_context() -> Result<WasiContext> {
70    // TODO: Use wasi-assembler to create context
71    // This needs to be implemented according to wasi-assembler's actual API
72    Ok(WasiContext::new())
73}
74
75/// Compile entire program
76fn compile_program(context: &mut WasiContext, program: &GaiaProgram) -> Result<()> {
77    // Compile all functions
78    for function in &program.functions {
79        compile_function(context, function)?;
80    }
81
82    Ok(())
83}
84
85/// Compile single function
86fn compile_function(context: &mut WasiContext, function: &GaiaFunction) -> Result<()> {
87    // Start function definition
88    start_function(context, &function.name, &function.parameters, &function.return_type)?;
89
90    // Compile instructions
91    for instruction in &function.instructions {
92        compile_instruction(context, instruction)?;
93    }
94
95    // End function definition
96    end_function(context)?;
97
98    Ok(())
99}
100
101/// Compile single instruction
102fn compile_instruction(context: &mut WasiContext, instruction: &GaiaInstruction) -> Result<()> {
103    match instruction {
104        GaiaInstruction::LoadConstant(constant) => compile_load_constant(context, constant),
105        GaiaInstruction::LoadLocal(index) => compile_load_local(context, (*index).try_into().unwrap()),
106        GaiaInstruction::StoreLocal(index) => compile_store_local(context, (*index).try_into().unwrap()),
107        GaiaInstruction::LoadGlobal(name) => compile_load_global(context, name),
108        GaiaInstruction::StoreGlobal(name) => compile_store_global(context, name),
109        GaiaInstruction::LoadArgument(index) => compile_load_argument(context, (*index).try_into().unwrap()),
110        GaiaInstruction::Add => compile_add(context),
111        GaiaInstruction::Subtract => compile_subtract(context),
112        GaiaInstruction::Multiply => compile_multiply(context),
113        GaiaInstruction::Divide => compile_divide(context),
114        GaiaInstruction::Remainder => compile_remainder(context),
115        GaiaInstruction::BitwiseAnd => compile_bitwise_and(context),
116        GaiaInstruction::BitwiseOr => compile_bitwise_or(context),
117        GaiaInstruction::BitwiseXor => compile_bitwise_xor(context),
118        GaiaInstruction::BitwiseNot => compile_bitwise_not(context),
119        GaiaInstruction::LogicalAnd => compile_logical_and(context),
120        GaiaInstruction::LogicalOr => compile_logical_or(context),
121        GaiaInstruction::LogicalNot => compile_logical_not(context),
122        GaiaInstruction::ShiftLeft => compile_left_shift(context),
123        GaiaInstruction::ShiftRight => compile_right_shift(context),
124        GaiaInstruction::Negate => compile_negate(context),
125        GaiaInstruction::Equal => compile_equal(context),
126        GaiaInstruction::NotEqual => compile_not_equal(context),
127        GaiaInstruction::LessThan => compile_less_than(context),
128        GaiaInstruction::GreaterThan => compile_greater_than(context),
129        GaiaInstruction::GreaterThanOrEqual => compile_greater_than_or_equal(context),
130        GaiaInstruction::LessThanOrEqual => compile_less_than_or_equal(context),
131        GaiaInstruction::Jump(label) => compile_branch(context, label),
132        GaiaInstruction::JumpIfTrue(label) => compile_branch_if_true(context, label),
133        GaiaInstruction::JumpIfFalse(label) => compile_branch_if_false(context, label),
134        GaiaInstruction::Call(function_name, _arg_count) => compile_call(context, function_name),
135        GaiaInstruction::Return => compile_return(context),
136        GaiaInstruction::Label(name) => compile_label(context, name),
137        GaiaInstruction::Duplicate => compile_duplicate(context),
138        GaiaInstruction::Pop => compile_pop(context),
139        // 已移除的对象/字段相关指令：LoadField/StoreField/NewObject
140        GaiaInstruction::Convert(from_type, to_type) => compile_convert(context, from_type, to_type),
141        // 已移除的指令：StringConstant、LoadAddress
142        GaiaInstruction::LoadIndirect(gaia_type) => compile_load_indirect(context, gaia_type),
143        GaiaInstruction::StoreIndirect(gaia_type) => compile_store_indirect(context, gaia_type),
144        GaiaInstruction::Box(gaia_type) => compile_box(context, gaia_type),
145        GaiaInstruction::Unbox(gaia_type) => compile_unbox(context, gaia_type),
146        GaiaInstruction::NewArray(elem_type, size) => compile_new_array(context, elem_type, *size),
147        GaiaInstruction::LoadElement(elem_type) => compile_load_element(context, elem_type),
148        GaiaInstruction::StoreElement(elem_type) => compile_store_element(context, elem_type),
149        GaiaInstruction::ArrayLength => compile_array_length(context),
150        _ => Ok(())
151    }
152}
153
154// Specific compilation implementations for each instruction
155// These functions need to be implemented according to wasi-assembler's actual API
156
157fn compile_load_constant(context: &mut WasiContext, constant: &GaiaConstant) -> Result<()> {
158    match constant {
159        GaiaConstant::Integer8(value) => {
160            // WASM: i32.const (extend to 32-bit)
161            context.emit_i32_const(*value as i32)
162        }
163        GaiaConstant::Integer16(value) => {
164            // WASM: i32.const (extend to 32-bit)
165            context.emit_i32_const(*value as i32)
166        }
167        GaiaConstant::Integer32(value) => {
168            // WASM: i32.const
169            context.emit_i32_const(*value)
170        }
171        GaiaConstant::Integer64(value) => {
172            // WASM: i64.const
173            context.emit_i64_const(*value)
174        }
175        GaiaConstant::Float32(value) => {
176            // WASM: f32.const
177            context.emit_f32_const(*value)
178        }
179        GaiaConstant::Float64(value) => {
180            // WASM: f64.const
181            context.emit_f64_const(*value)
182        }
183        GaiaConstant::String(value) => {
184            // WASM: String needs to be stored in memory, then load address
185            context.emit_string_const(value)
186        }
187        GaiaConstant::Boolean(value) => {
188            // WASM: i32.const 0/1
189            context.emit_i32_const(if *value { 1 } else { 0 })
190        }
191        GaiaConstant::Null => {
192            // WASM: i32.const 0 (null pointer)
193            context.emit_i32_const(0)
194        }
195    }
196}
197
198fn compile_load_local(context: &mut WasiContext, index: u32) -> Result<()> {
199    // WASM: local.get
200    context.emit_local_get(index)
201}
202
203fn compile_store_local(context: &mut WasiContext, index: u32) -> Result<()> {
204    // WASM: local.set
205    context.emit_local_set(index)
206}
207
208fn compile_load_argument(context: &mut WasiContext, index: u32) -> Result<()> {
209    // WASM: Parameters are also local variables
210    context.emit_local_get(index)
211}
212
213fn compile_add(context: &mut WasiContext) -> Result<()> {
214    // WASM: i32.add, i64.add, f32.add, f64.add
215    context.emit_i32_add()
216}
217
218fn compile_subtract(context: &mut WasiContext) -> Result<()> {
219    // WASM: i32.sub, i64.sub, f32.sub, f64.sub
220    context.emit_i32_sub()
221}
222
223fn compile_multiply(context: &mut WasiContext) -> Result<()> {
224    // WASM: i32.mul, i64.mul, f32.mul, f64.mul
225    context.emit_i32_mul()
226}
227
228fn compile_divide(context: &mut WasiContext) -> Result<()> {
229    // WASM: i32.div_s, i64.div_s, f32.div, f64.div
230    context.emit_i32_div_s()
231}
232
233fn compile_equal(context: &mut WasiContext) -> Result<()> {
234    // WASM: i32.eq, i64.eq, f32.eq, f64.eq
235    context.emit_i32_eq()
236}
237
238fn compile_not_equal(context: &mut WasiContext) -> Result<()> {
239    // WASM: i32.ne, i64.ne, f32.ne, f64.ne
240    context.emit_i32_ne()
241}
242
243fn compile_less_than(context: &mut WasiContext) -> Result<()> {
244    // WASM: i32.lt_s, i64.lt_s, f32.lt, f64.lt
245    context.emit_i32_lt_s()
246}
247
248fn compile_greater_than(context: &mut WasiContext) -> Result<()> {
249    // WASM: i32.gt_s, i64.gt_s, f32.gt, f64.gt
250    context.emit_i32_gt_s()
251}
252
253fn compile_branch(context: &mut WasiContext, label: &str) -> Result<()> {
254    // WASM: br
255    context.emit_br(label)
256}
257
258fn compile_branch_if_true(context: &mut WasiContext, label: &str) -> Result<()> {
259    // WASM: if...br
260    context.emit_if_br(label)
261}
262
263fn compile_branch_if_false(context: &mut WasiContext, label: &str) -> Result<()> {
264    // WASM: if...br (inverted condition)
265    context.emit_if_not_br(label)
266}
267
268fn compile_call(_context: &mut WasiContext, function_name: &str) -> Result<()> {
269    // Use FunctionMapper to map function names to WASI-specific implementations
270    let mapper = FunctionMapper::new();
271    let wasi_target = CompilationTarget {
272        build: Architecture::WASM32,
273        host: AbiCompatible::WebAssemblyTextFormat,
274        target: ApiCompatible::WASI,
275    };
276    let _mapped_name = mapper.map_function(&wasi_target, function_name);
277
278    // WASM: call mapped_name
279    todo!()
280}
281
282fn compile_return(context: &mut WasiContext) -> Result<()> {
283    // WASM: return
284    context.emit_return()
285}
286
287fn compile_label(context: &mut WasiContext, name: &str) -> Result<()> {
288    // WASM: Define label
289    context.define_label(name)
290}
291
292fn compile_duplicate(context: &mut WasiContext) -> Result<()> {
293    // WASM: local.tee (for stack duplication)
294    context.emit_local_tee(0) // Use a temporary local
295}
296
297fn compile_pop(context: &mut WasiContext) -> Result<()> {
298    // WASM: drop
299    context.emit_drop()
300}
301
302fn compile_load_field(context: &mut WasiContext, field_name: &str) -> Result<()> {
303    // WASM: Load field from struct
304    // This requires struct layout information
305    context.emit_struct_get(field_name)
306}
307
308fn compile_store_field(context: &mut WasiContext, field_name: &str) -> Result<()> {
309    // WASM: Store field to struct
310    // This requires struct layout information
311    context.emit_struct_set(field_name)
312}
313
314fn compile_new_object(context: &mut WasiContext, type_name: &str) -> Result<()> {
315    // WASM: Allocate memory for object
316    // This requires type information and memory management
317    context.emit_new_object(type_name)
318}
319
320fn compile_convert(context: &mut WasiContext, from_type: &GaiaType, to_type: &GaiaType) -> Result<()> {
321    match (from_type, to_type) {
322        (GaiaType::Integer32, GaiaType::Integer64) => context.emit_i64_extend_i32_s(),
323        (GaiaType::Integer64, GaiaType::Integer32) => context.emit_i32_wrap_i64(),
324        (GaiaType::Integer32, GaiaType::Float32) => context.emit_f32_convert_i32_s(),
325        (GaiaType::Integer32, GaiaType::Float64) => context.emit_f64_convert_i32_s(),
326        (GaiaType::Integer64, GaiaType::Float32) => context.emit_f32_convert_i64_s(),
327        (GaiaType::Integer64, GaiaType::Float64) => context.emit_f64_convert_i64_s(),
328        (GaiaType::Float32, GaiaType::Integer32) => context.emit_i32_trunc_f32_s(),
329        (GaiaType::Float32, GaiaType::Integer64) => context.emit_i64_trunc_f32_s(),
330        (GaiaType::Float64, GaiaType::Integer32) => context.emit_i32_trunc_f64_s(),
331        (GaiaType::Float64, GaiaType::Integer64) => context.emit_i64_trunc_f64_s(),
332        (GaiaType::Float32, GaiaType::Float64) => context.emit_f64_promote_f32(),
333        (GaiaType::Float64, GaiaType::Float32) => context.emit_f32_demote_f64(),
334        _ => Err(GaiaError::not_implemented("WASI type conversion")),
335    }
336}
337
338fn compile_store_argument(context: &mut WasiContext, index: u32) -> Result<()> {
339    // WASM: Store to argument (parameter)
340    context.emit_local_set(index)
341}
342
343fn compile_remainder(context: &mut WasiContext) -> Result<()> {
344    // WASM: i32.rem_s
345    context.emit_i32_rem_s()
346}
347
348fn compile_bitwise_and(context: &mut WasiContext) -> Result<()> {
349    // WASM: i32.and
350    context.emit_i32_and()
351}
352
353fn compile_bitwise_or(context: &mut WasiContext) -> Result<()> {
354    // WASM: i32.or
355    context.emit_i32_or()
356}
357
358fn compile_bitwise_xor(context: &mut WasiContext) -> Result<()> {
359    // WASM: i32.xor
360    context.emit_i32_xor()
361}
362
363fn compile_bitwise_not(context: &mut WasiContext) -> Result<()> {
364    // WASM: i32.const -1; i32.xor (bitwise NOT using XOR with all 1s)
365    context.emit_i32_const(-1)?;
366    context.emit_i32_xor()
367}
368
369fn compile_logical_and(context: &mut WasiContext) -> Result<()> {
370    // 对布尔值，逻辑与等价于位与
371    compile_bitwise_and(context)
372}
373
374fn compile_logical_or(context: &mut WasiContext) -> Result<()> {
375    // 对布尔值，逻辑或等价于位或
376    compile_bitwise_or(context)
377}
378
379fn compile_logical_not(context: &mut WasiContext) -> Result<()> {
380    // 对布尔值 0/1，按位异或 1 等价于逻辑非
381    context.emit_i32_const(1)?;
382    context.emit_i32_xor()
383}
384
385fn compile_left_shift(context: &mut WasiContext) -> Result<()> {
386    // WASM: i32.shl
387    context.emit_i32_shl()
388}
389
390fn compile_right_shift(context: &mut WasiContext) -> Result<()> {
391    // WASM: i32.shr_s (arithmetic right shift)
392    context.emit_i32_shr_s()
393}
394
395fn compile_negate(context: &mut WasiContext) -> Result<()> {
396    // WASM: i32.const 0; swap; i32.sub (0 - value)
397    context.emit_i32_const(0)?;
398    context.emit_swap()?;
399    context.emit_i32_sub()
400}
401
402fn compile_greater_than_or_equal(context: &mut WasiContext) -> Result<()> {
403    // WASM: i32.ge_s
404    context.emit_i32_ge_s()
405}
406
407fn compile_less_than_or_equal(context: &mut WasiContext) -> Result<()> {
408    // WASM: i32.le_s
409    context.emit_i32_le_s()
410}
411
412fn compile_string_constant(context: &mut WasiContext, value: &str) -> Result<()> {
413    // WASM: Load string constant
414    context.emit_string_const(value)
415}
416
417fn compile_load_global(_context: &mut WasiContext, _name: &str) -> Result<()> {
418    // TODO: 使用 global.get 或内存模型加载全局变量
419    Err(GaiaError::not_implemented("WASI load global"))
420}
421
422fn compile_store_global(_context: &mut WasiContext, _name: &str) -> Result<()> {
423    // TODO: 使用 global.set 或内存模型存储全局变量
424    Err(GaiaError::not_implemented("WASI store global"))
425}
426
427/// Start function definition
428fn start_function(
429    _context: &mut WasiContext,
430    _name: &str,
431    _parameters: &[GaiaType],
432    _return_type: &Option<GaiaType>,
433) -> Result<()> {
434    // TODO: Generate function prologue
435    // This needs to set up local variables, parameters, etc.
436    Err(GaiaError::not_implemented("function start compilation"))
437}
438
439fn end_function(_context: &mut WasiContext) -> Result<()> {
440    // TODO: Generate function epilogue
441    // This needs to clean up local variables, etc.
442    Err(GaiaError::not_implemented("function end compilation"))
443}
444
445/// Generate WebAssembly bytecode
446fn generate_wasm_bytecode(_context: &WasiContext) -> Result<Vec<u8>> {
447    // TODO: Generate actual WebAssembly bytecode from context
448    // This needs to create proper WASM module structure
449    Err(GaiaError::not_implemented("WebAssembly bytecode generation"))
450}
451
452/// WASI assembler context
453struct WasiContext {
454    #[allow(dead_code)]
455    bytecode: Vec<u8>,
456}
457
458impl WasiContext {
459    fn new() -> Self {
460        WasiContext { bytecode: Vec::new() }
461    }
462
463    // Placeholder methods for WASM instruction emission
464    fn emit_i32_const(&mut self, _value: i32) -> Result<()> {
465        Err(GaiaError::not_implemented("i32.const emission"))
466    }
467
468    fn emit_i64_const(&mut self, _value: i64) -> Result<()> {
469        Err(GaiaError::not_implemented("i64.const emission"))
470    }
471
472    fn emit_f32_const(&mut self, _value: f32) -> Result<()> {
473        Err(GaiaError::not_implemented("f32.const emission"))
474    }
475
476    fn emit_f64_const(&mut self, _value: f64) -> Result<()> {
477        Err(GaiaError::not_implemented("f64.const emission"))
478    }
479
480    fn emit_local_get(&mut self, _index: u32) -> Result<()> {
481        Err(GaiaError::not_implemented("local.get emission"))
482    }
483
484    fn emit_local_set(&mut self, _index: u32) -> Result<()> {
485        Err(GaiaError::not_implemented("local.set emission"))
486    }
487
488    fn emit_i32_add(&mut self) -> Result<()> {
489        Err(GaiaError::not_implemented("i32.add emission"))
490    }
491
492    fn emit_i32_sub(&mut self) -> Result<()> {
493        Err(GaiaError::not_implemented("i32.sub emission"))
494    }
495
496    fn emit_i32_mul(&mut self) -> Result<()> {
497        Err(GaiaError::not_implemented("i32.mul emission"))
498    }
499
500    fn emit_i32_div_s(&mut self) -> Result<()> {
501        Err(GaiaError::not_implemented("i32.div_s emission"))
502    }
503
504    fn emit_i32_eq(&mut self) -> Result<()> {
505        Err(GaiaError::not_implemented("i32.eq emission"))
506    }
507
508    fn emit_i32_ne(&mut self) -> Result<()> {
509        Err(GaiaError::not_implemented("i32.ne emission"))
510    }
511
512    fn emit_i32_lt_s(&mut self) -> Result<()> {
513        Err(GaiaError::not_implemented("i32.lt_s emission"))
514    }
515
516    fn emit_i32_gt_s(&mut self) -> Result<()> {
517        Err(GaiaError::not_implemented("i32.gt_s emission"))
518    }
519
520    fn emit_br(&mut self, _label: &str) -> Result<()> {
521        Err(GaiaError::not_implemented("br emission"))
522    }
523
524    #[allow(dead_code)]
525    fn emit_br_if(&mut self, _label: &str) -> Result<()> {
526        Err(GaiaError::not_implemented("br_if emission"))
527    }
528
529    #[allow(dead_code)]
530    fn emit_call(&mut self, _function_name: &str) -> Result<()> {
531        Err(GaiaError::not_implemented("call emission"))
532    }
533
534    fn emit_return(&mut self) -> Result<()> {
535        Err(GaiaError::not_implemented("return emission"))
536    }
537
538    fn emit_drop(&mut self) -> Result<()> {
539        Err(GaiaError::not_implemented("drop emission"))
540    }
541
542    #[allow(dead_code)]
543    fn emit_load_field(&mut self, _field_name: &str) -> Result<()> {
544        Err(GaiaError::not_implemented("load field emission"))
545    }
546
547    #[allow(dead_code)]
548    fn emit_store_field(&mut self, _field_name: &str) -> Result<()> {
549        Err(GaiaError::not_implemented("store field emission"))
550    }
551
552    fn emit_new_object(&mut self, _type_name: &str) -> Result<()> {
553        Err(GaiaError::not_implemented("new object emission"))
554    }
555
556    // Type conversion methods
557    fn emit_i64_extend_i32_s(&mut self) -> Result<()> {
558        Err(GaiaError::not_implemented("i64.extend_i32_s emission"))
559    }
560
561    fn emit_i32_wrap_i64(&mut self) -> Result<()> {
562        Err(GaiaError::not_implemented("i32.wrap_i64 emission"))
563    }
564
565    fn emit_f32_convert_i32_s(&mut self) -> Result<()> {
566        Err(GaiaError::not_implemented("f32.convert_i32_s emission"))
567    }
568
569    fn emit_f64_convert_i32_s(&mut self) -> Result<()> {
570        Err(GaiaError::not_implemented("f64.convert_i32_s emission"))
571    }
572
573    fn emit_f32_convert_i64_s(&mut self) -> Result<()> {
574        Err(GaiaError::not_implemented("f32.convert_i64_s emission"))
575    }
576
577    fn emit_f64_convert_i64_s(&mut self) -> Result<()> {
578        Err(GaiaError::not_implemented("f64.convert_i64_s emission"))
579    }
580
581    fn emit_i32_trunc_f32_s(&mut self) -> Result<()> {
582        Err(GaiaError::not_implemented("i32.trunc_f32_s emission"))
583    }
584
585    fn emit_i64_trunc_f32_s(&mut self) -> Result<()> {
586        Err(GaiaError::not_implemented("i64.trunc_f32_s emission"))
587    }
588
589    fn emit_i32_trunc_f64_s(&mut self) -> Result<()> {
590        Err(GaiaError::not_implemented("i32.trunc_f64_s emission"))
591    }
592
593    fn emit_i64_trunc_f64_s(&mut self) -> Result<()> {
594        Err(GaiaError::not_implemented("i64.trunc_f64_s emission"))
595    }
596
597    fn emit_f64_promote_f32(&mut self) -> Result<()> {
598        Err(GaiaError::not_implemented("f64.promote_f32 emission"))
599    }
600
601    fn emit_f32_demote_f64(&mut self) -> Result<()> {
602        Err(GaiaError::not_implemented("f32.demote_f64 emission"))
603    }
604
605    fn emit_string_const(&mut self, _value: &str) -> Result<()> {
606        Err(GaiaError::not_implemented("string const emission"))
607    }
608
609    fn emit_if_br(&mut self, _label: &str) -> Result<()> {
610        Err(GaiaError::not_implemented("if br emission"))
611    }
612
613    fn emit_if_not_br(&mut self, _label: &str) -> Result<()> {
614        Err(GaiaError::not_implemented("if not br emission"))
615    }
616
617    fn define_label(&mut self, _name: &str) -> Result<()> {
618        Err(GaiaError::not_implemented("label definition"))
619    }
620
621    fn emit_local_tee(&mut self, _index: u32) -> Result<()> {
622        Err(GaiaError::not_implemented("local.tee emission"))
623    }
624
625    fn emit_struct_get(&mut self, _field_name: &str) -> Result<()> {
626        Err(GaiaError::not_implemented("wasm<struct.get>"))
627    }
628
629    fn emit_struct_set(&mut self, _field_name: &str) -> Result<()> {
630        Err(GaiaError::not_implemented("wasm struct.set"))
631    }
632
633    // Additional emit methods for new instructions
634    fn emit_i32_rem_s(&mut self) -> Result<()> {
635        Err(GaiaError::not_implemented("wasm i32.rem_s"))
636    }
637
638    fn emit_i32_and(&mut self) -> Result<()> {
639        Err(GaiaError::not_implemented("wasm i32.and"))
640    }
641
642    fn emit_i32_or(&mut self) -> Result<()> {
643        Err(GaiaError::not_implemented("wasm i32.or"))
644    }
645
646    fn emit_i32_xor(&mut self) -> Result<()> {
647        Err(GaiaError::not_implemented("wasm i32.xor"))
648    }
649
650    fn emit_i32_shl(&mut self) -> Result<()> {
651        Err(GaiaError::not_implemented("wasm i32.shl"))
652    }
653
654    fn emit_i32_shr_s(&mut self) -> Result<()> {
655        Err(GaiaError::not_implemented("wasm i32.shr_s"))
656    }
657
658    fn emit_swap(&mut self) -> Result<()> {
659        Err(GaiaError::not_implemented("wasm stack swap"))
660    }
661
662    fn emit_i32_ge_s(&mut self) -> Result<()> {
663        Err(GaiaError::not_implemented("wasm i32.ge_s"))
664    }
665
666    fn emit_i32_le_s(&mut self) -> Result<()> {
667        Err(GaiaError::not_implemented("wasm i32.le_s"))
668    }
669}
670
671// Additional compilation functions for missing instructions
672fn compile_load_address(_context: &mut WasiContext, _index: u32) -> Result<()> {
673    // Load address of local variable or parameter
674    Err(GaiaError::not_implemented("WASI load address"))
675}
676
677fn compile_load_indirect(_context: &mut WasiContext, _gaia_type: &GaiaType) -> Result<()> {
678    // Load value from memory address on stack
679    Err(GaiaError::not_implemented("WASI load indirect"))
680}
681
682fn compile_store_indirect(_context: &mut WasiContext, _gaia_type: &GaiaType) -> Result<()> {
683    // Store value to memory address on stack
684    Err(GaiaError::not_implemented("WASI store indirect"))
685}
686
687fn compile_box(_context: &mut WasiContext, _gaia_type: &GaiaType) -> Result<()> {
688    // Box a value type into a reference type
689    Err(GaiaError::not_implemented("WASI box operation"))
690}
691
692fn compile_unbox(_context: &mut WasiContext, _gaia_type: &GaiaType) -> Result<()> {
693    // Unbox a reference type to a value type
694    Err(GaiaError::not_implemented("WASI unbox operation"))
695}
696
697fn compile_new_array(_context: &mut WasiContext, _elem_type: &GaiaType, _size: usize) -> Result<()> {
698    // TODO: 在 WASM 中分配并初始化数组
699    Err(GaiaError::not_implemented("WASI new array"))
700}
701
702fn compile_load_element(_context: &mut WasiContext, _elem_type: &GaiaType) -> Result<()> {
703    // TODO: 在 WASM 中按元素类型从内存加载
704    Err(GaiaError::not_implemented("WASI load element"))
705}
706
707fn compile_store_element(_context: &mut WasiContext, _elem_type: &GaiaType) -> Result<()> {
708    // TODO: 在 WASM 中按元素类型存储到内存
709    Err(GaiaError::not_implemented("WASI store element"))
710}
711
712fn compile_array_length(_context: &mut WasiContext) -> Result<()> {
713    // TODO: 返回数组长度（需要运行时或约定）
714    Err(GaiaError::not_implemented("WASI array length"))
715}
gaia_assembler/backends/wasi/mod.rs

gaia_assembler/backends/wasi/
mod.rs
