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Add stubs for all un/marshalling functions. Refactoring.

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This commit is contained in:
John J. Camilleri
2021-10-07 15:58:59 +02:00
parent db0cbf60cb
commit 16ee006735
2 changed files with 230 additions and 124 deletions
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124
src/runtime/javascript/index.ts
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@@ -2,58 +2,24 @@
import errno from './errno'
import { Expr, ExprLit } from './expr'
import { unmarshaller, PgfUnmarshaller, PgfExpr, PgfLiteral } from './ffi'
import {
voidPtr,
PgfRevisionPtr,
PgfItorPtr,
PgfTextPtr,
PgfExn,
PgfExnPtr,
PgfText_AsString,
PgfText_FromString,
runtime,
unmarshaller
} from './ffi'
import ffi from 'ffi-napi'
import ref, { Pointer } from 'ref-napi'
import ref_struct, { StructObject } from 'ref-struct-di'
const Struct = ref_struct(ref)
// ----------------------------------------------------------------------------
// FFI "Types"
const voidPtr = ref.refType(ref.types.void)
const prob_t = ref.types.float
const size_t = ref.types.size_t
const PgfDB = ref.types.void
const PgfDBPtr = ref.refType(PgfDB)
const PgfRevision = ref.refType(ref.types.void)
const PgfRevisionPtr = ref.refType(PgfRevision)
const PgfExn = Struct({
type: ref.types.int,
code: ref.types.int,
msg: ref.types.CString
})
const PgfExnPtr = ref.refType(PgfExn)
const PgfText = Struct({
size: ref.types.size_t,
text: ref.types.char // char[]
})
const PgfTextPtr = ref.refType(PgfText)
const PgfItorPtr = ref.refType(ref.types.void)
const PgfType = ref.types.void // TODO
// const PgfTypePtr = ref.refType(PgfType)
const PgfTypeHypo = ref.types.void // TODO
const PgfTypeHypoPtr = ref.refType(PgfTypeHypo)
// const PgfExpr = ref.types.void // TODO
// const PgfLiteral = ref.types.void // TODO
const PgfPrintContext = ref.types.void // TODO
const PgfPrintContextPtr = ref.refType(PgfPrintContext)
// const PgfUnmarshaller = ref.types.void // TODO
const PgfUnmarshallerPtr = ref.refType(PgfUnmarshaller)
const PgfMarshaller = ref.types.void // TODO
const PgfMarshallerPtr = ref.refType(PgfMarshaller)
import { StructObject } from 'ref-struct-di'
// ----------------------------------------------------------------------------
// TypeScript Types
@@ -72,50 +38,6 @@ class PGFError extends Error {
}
}
// ----------------------------------------------------------------------------
// FFI
const runtime = ffi.Library('libpgf', {
pgf_read_pgf: [PgfDBPtr, [ref.types.CString, PgfRevisionPtr, PgfExnPtr]],
pgf_boot_ngf: [PgfDBPtr, [ref.types.CString, ref.types.CString, PgfRevisionPtr, PgfExnPtr]],
pgf_read_ngf: [PgfDBPtr, [ref.types.CString, PgfRevisionPtr, PgfExnPtr]],
pgf_new_ngf: [PgfDBPtr, [PgfTextPtr, ref.types.CString, PgfRevisionPtr, PgfExnPtr]],
pgf_write_pgf: [ref.types.void, [ref.types.CString, PgfDBPtr, PgfRevision, PgfExnPtr]],
pgf_free_revision: [ref.types.void, [PgfDBPtr, PgfRevision]],
pgf_abstract_name: [PgfTextPtr, [PgfDBPtr, PgfRevision, PgfExnPtr]],
pgf_iter_categories: [ref.types.void, [PgfDBPtr, PgfRevision, PgfItorPtr, PgfExnPtr]],
pgf_start_cat: [PgfType, [PgfDBPtr, PgfRevision, PgfUnmarshallerPtr, PgfExnPtr]],
pgf_category_context: [PgfTypeHypoPtr, [PgfDBPtr, PgfRevision, PgfTextPtr, ref.refType(ref.types.size_t), PgfUnmarshallerPtr, PgfExnPtr]],
pgf_category_prob: [prob_t, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfExnPtr]],
pgf_iter_functions: [ref.types.void, [PgfDBPtr, PgfRevision, PgfItorPtr, PgfExnPtr]],
pgf_iter_functions_by_cat: [ref.types.void, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfItorPtr, PgfExnPtr]],
pgf_function_type: [PgfType, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfUnmarshallerPtr, PgfExnPtr]],
pgf_function_is_constructor: [ref.types.int, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfExnPtr]],
pgf_function_prob: [prob_t, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfExnPtr]],
pgf_print_expr: [PgfTextPtr, [PgfExpr, PgfPrintContextPtr, ref.types.int, PgfMarshallerPtr]],
pgf_read_expr: [PgfExpr, [PgfTextPtr, PgfUnmarshallerPtr]],
pgf_read_expr_ex: [PgfExpr, [PgfTextPtr, ref.refType(ref.types.CString), PgfUnmarshallerPtr]],
pgf_expr_prob: [prob_t, [PgfDBPtr, PgfRevision, PgfExpr, PgfMarshallerPtr, PgfExnPtr]],
pgf_print_type: [PgfTextPtr, [PgfType, PgfPrintContextPtr, ref.types.int, PgfMarshallerPtr]],
pgf_print_context: [PgfTextPtr, [size_t, PgfTypeHypoPtr, PgfPrintContextPtr, ref.types.int, PgfMarshallerPtr]],
pgf_read_type: [PgfType, [PgfTextPtr, PgfUnmarshallerPtr]],
pgf_clone_revision: [PgfRevision, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfExnPtr]],
pgf_commit_revision: [ref.types.void, [PgfDBPtr, PgfRevision, PgfExnPtr]],
pgf_checkout_revision: [PgfRevision, [PgfDBPtr, PgfTextPtr, PgfExnPtr]],
pgf_create_function: [ref.types.void, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfType, size_t, prob_t, PgfMarshallerPtr, PgfExnPtr]],
pgf_drop_function: [ref.types.void, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfExnPtr]],
pgf_create_category: [ref.types.void, [PgfDBPtr, PgfRevision, PgfTextPtr, size_t, PgfTypeHypoPtr, prob_t, PgfMarshallerPtr, PgfExnPtr]],
pgf_drop_category: [ref.types.void, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfExnPtr]],
pgf_get_global_flag: [PgfLiteral, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfUnmarshallerPtr, PgfExnPtr]],
pgf_set_global_flag: [ref.types.void, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfLiteral, PgfMarshallerPtr, PgfExnPtr]],
pgf_get_abstract_flag: [PgfLiteral, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfUnmarshallerPtr, PgfExnPtr]],
pgf_set_abstract_flag: [ref.types.void, [PgfDBPtr, PgfRevision, PgfTextPtr, PgfLiteral, PgfMarshallerPtr, PgfExnPtr]]
})
// ----------------------------------------------------------------------------
// Helpers
@@ -142,22 +64,6 @@ function handleError (err: StructObject<PgfExnType>): void {
}
}
function PgfText_AsString (txtPtr: Pointer<any>): string {
const txtSize = txtPtr.deref().size
const charPtr = ref.reinterpret(txtPtr, txtSize, ref.types.size_t.size)
return charPtr.toString('utf8')
}
function PgfText_FromString (str: string): Pointer<any> {
const strbuf = Buffer.from(str, 'utf8')
const size = strbuf.length // size in bytes, not chars
const sizebuf = ref.alloc(ref.types.size_t, size)
const txtbuf = Buffer.alloc(ref.types.size_t.size + size + 1)
sizebuf.copy(txtbuf, 0, 0)
strbuf.copy(txtbuf, ref.types.size_t.size, 0)
return txtbuf as Pointer<void>
}
// ----------------------------------------------------------------------------
// PGF grammar object