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Refactor libdeno ES module interface. (#1624)

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Allows for future asynchronous module loading.

Add support for import.meta.url

Fixes #1496
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Ryan Dahl 2019-01-30 17:21:31 -05:00 • committed by GitHub
parent 7d278a0383
commit 00597ffde1
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GPG key ID: 4AEE18F83AFDEB23
23 changed files with 884 additions and 467 deletions
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49
libdeno/deno.h
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@ -25,26 +25,15 @@ typedef struct deno_s Deno;
typedef void (*deno_recv_cb)(void* user_data, int32_t req_id,
deno_buf control_buf, deno_buf data_buf);
// A callback to implement ES Module imports. User must call deno_resolve_ok()
// at most once during deno_resolve_cb. If deno_resolve_ok() is not called, the
// specifier is considered invalid and will issue an error in JS. The reason
// deno_resolve_cb does not return deno_module is to avoid unnecessary heap
// allocations.
typedef void (*deno_resolve_cb)(void* user_data, const char* specifier,
const char* referrer);
void deno_resolve_ok(Deno* d, const char* filename, const char* source);
void deno_init();
const char* deno_v8_version();
void deno_set_v8_flags(int* argc, char** argv);
typedef struct {
int will_snapshot; // Default 0. If calling deno_get_snapshot 1.
deno_buf load_snapshot; // Optionally: A deno_buf from deno_get_snapshot.
deno_buf shared; // Shared buffer to be mapped to libdeno.shared
deno_recv_cb recv_cb; // Maps to libdeno.send() calls.
deno_resolve_cb resolve_cb; // Each import calls this.
int will_snapshot; // Default 0. If calling deno_get_snapshot 1.
deno_buf load_snapshot; // Optionally: A deno_buf from deno_get_snapshot.
deno_buf shared; // Shared buffer to be mapped to libdeno.shared
deno_recv_cb recv_cb; // Maps to libdeno.send() calls.
} deno_config;
// Create a new deno isolate.
@ -65,16 +54,6 @@ void deno_delete(Deno* d);
int deno_execute(Deno* d, void* user_data, const char* js_filename,
const char* js_source);
// Compile and execute an ES module. Caller must have provided a deno_resolve_cb
// when instantiating the Deno object.
// Return value: 0 = fail, 1 = success
// Get error text with deno_last_exception().
// If resolve_only is 0, compile and evaluate the module.
// If resolve_only is 1, compile and collect dependencies of the module
// without running the code.
int deno_execute_mod(Deno* d, void* user_data, const char* js_filename,
const char* js_source, int resolve_only);
// deno_respond sends up to one message back for every deno_recv_cb made.
//
// If this is called during deno_recv_cb, the issuing libdeno.send() in
@ -101,6 +80,26 @@ const char* deno_last_exception(Deno* d);
void deno_terminate_execution(Deno* d);
// Module API
typedef int deno_mod;
// Returns zero on error - check deno_last_exception().
deno_mod deno_mod_new(Deno* d, const char* name, const char* source);
size_t deno_mod_imports_len(Deno* d, deno_mod id);
// Returned pointer is valid for the lifetime of the Deno isolate "d".
const char* deno_mod_imports_get(Deno* d, deno_mod id, size_t index);
typedef deno_mod (*deno_resolve_cb)(void* user_data, const char* specifier,
deno_mod referrer);
void deno_mod_instantiate(Deno* d, void* user_data, deno_mod id,
deno_resolve_cb cb);
void deno_mod_evaluate(Deno* d, void* user_data, deno_mod id);
#ifdef __cplusplus
} // extern "C"
#endif