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expose custom params for new program

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NikVolf
2017-05-30 17:15:36 +03:00
parent c3821d5833
commit d981bf4803
2 changed files with 24 additions and 16 deletions
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23
src/interpreter/env.rs
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@ -152,16 +152,15 @@ impl ModuleInstanceInterface for EnvModuleInstance {
}
}
pub fn env_module() -> Result<EnvModuleInstance, Error> {
let env_params = EnvParams::default();
debug_assert!(env_params.total_stack < env_params.total_memory);
debug_assert!((env_params.total_stack % LINEAR_MEMORY_PAGE_SIZE) == 0);
debug_assert!((env_params.total_memory % LINEAR_MEMORY_PAGE_SIZE) == 0);
pub fn env_module(params: EnvParams) -> Result<EnvModuleInstance, Error> {
debug_assert!(params.total_stack < params.total_memory);
debug_assert!((params.total_stack % LINEAR_MEMORY_PAGE_SIZE) == 0);
debug_assert!((params.total_memory % LINEAR_MEMORY_PAGE_SIZE) == 0);
let builder = module()
// memory regions
.memory()
.with_min(env_params.total_memory / LINEAR_MEMORY_PAGE_SIZE)
.with_max(env_params.max_memory().map(|m| m / LINEAR_MEMORY_PAGE_SIZE))
.with_min(params.total_memory / LINEAR_MEMORY_PAGE_SIZE)
.with_max(params.max_memory().map(|m| m / LINEAR_MEMORY_PAGE_SIZE))
.build()
.with_export(ExportEntry::new("memory".into(), Internal::Memory(INDEX_MEMORY)))
// tables
@ -174,13 +173,13 @@ pub fn env_module() -> Result<EnvModuleInstance, Error> {
.with_export(ExportEntry::new("STACK_BASE".into(), Internal::Global(INDEX_GLOBAL_STACK_BASE)))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, true), InitExpr::new(vec![Opcode::I32Const(DEFAULT_STACK_BASE.transmute_into())])))
.with_export(ExportEntry::new("STACKTOP".into(), Internal::Global(INDEX_GLOBAL_STACK_TOP)))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, false), InitExpr::new(vec![Opcode::I32Const((DEFAULT_STACK_BASE + env_params.total_stack).transmute_into())])))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, false), InitExpr::new(vec![Opcode::I32Const((DEFAULT_STACK_BASE + params.total_stack).transmute_into())])))
.with_export(ExportEntry::new("STACK_MAX".into(), Internal::Global(INDEX_GLOBAL_STACK_MAX)))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, false), InitExpr::new(vec![Opcode::I32Const((DEFAULT_STACK_BASE + env_params.total_stack).transmute_into())])))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, false), InitExpr::new(vec![Opcode::I32Const((DEFAULT_STACK_BASE + params.total_stack).transmute_into())])))
.with_export(ExportEntry::new("DYNAMIC_BASE".into(), Internal::Global(INDEX_GLOBAL_DYNAMIC_BASE)))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, true), InitExpr::new(vec![Opcode::I32Const((DEFAULT_STACK_BASE + env_params.total_stack).transmute_into())])))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, true), InitExpr::new(vec![Opcode::I32Const((DEFAULT_STACK_BASE + params.total_stack).transmute_into())])))
.with_export(ExportEntry::new("DYNAMICTOP_PTR".into(), Internal::Global(INDEX_GLOBAL_DYNAMICTOP_PTR)))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, env_params.allow_memory_growth), InitExpr::new(vec![Opcode::I32Const(env_params.total_memory.transmute_into())])))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, params.allow_memory_growth), InitExpr::new(vec![Opcode::I32Const(params.total_memory.transmute_into())])))
.with_export(ExportEntry::new("TOTAL_MEMORY".into(), Internal::Global(INDEX_GLOBAL_TOTAL_MEMORY)))
.with_global(GlobalEntry::new(GlobalType::new(ValueType::I32, true), InitExpr::new(vec![Opcode::I32Const(0)])))
.with_export(ExportEntry::new("ABORT".into(), Internal::Global(INDEX_GLOBAL_ABORT)))
@ -210,7 +209,7 @@ pub fn env_module() -> Result<EnvModuleInstance, Error> {
.build()
.with_export(ExportEntry::new("getTotalMemory".into(), Internal::Function(INDEX_FUNC_GET_TOTAL_MEMORY)));
EnvModuleInstance::new(env_params, builder.build())
EnvModuleInstance::new(params, builder.build())
}
impl Default for EnvParams {