[lang] Pass DebugInfo to frontend expressions (#8308)

Issue: #

### Brief Summary

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### <samp>🤖 Generated by Copilot at 7e32e22</samp>

This pull request adds a `dbg_info` argument to various functions and
constructors related to expressions, statements, and texture operations
in the Taichi frontend and IR. This argument is used to pass and store
source code information for debugging purposes, which enables better
error reporting and debugging experience for Taichi users and
developers.

### Walkthrough

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### <samp>🤖 Generated by Copilot at 7e32e22</samp>

* Add `dbg_info` parameters to various expression and statement
constructors and function calls, which are used to store and pass the
source code location and other debugging information for error reporting
and debugging purposes.
([link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-c6d83b9e6291bedbadc82d8027e027fe6cdc4785a413467b722b4f55e6e59386L25-R27),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-c6d83b9e6291bedbadc82d8027e027fe6cdc4785a413467b722b4f55e6e59386L36-R39),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-c6d83b9e6291bedbadc82d8027e027fe6cdc4785a413467b722b4f55e6e59386L54-R58),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-c6d83b9e6291bedbadc82d8027e027fe6cdc4785a413467b722b4f55e6e59386L65-R72),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-c6d83b9e6291bedbadc82d8027e027fe6cdc4785a413467b722b4f55e6e59386L77-R84),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-2e623ee0b0eec1b200fead36c0627a3c54738f6d83d79757398dc67decc01da8L54-R55),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-3e22417ffade4af0564893b98dc5101d714b8ba6fd4423ab5bc5129e360fee8fL1436-R1441),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-99744c5ae5f6a754d6f68408fdc64fb0d6097216518a7f3d1ef43ffe12599577L132-R136),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-99744c5ae5f6a754d6f68408fdc64fb0d6097216518a7f3d1ef43ffe12599577L242-R243),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-575efc738df7b1202370c2531ec82232dc7f287b2bec4999af03ef40da4f5deeL135-R136),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-575efc738df7b1202370c2531ec82232dc7f287b2bec4999af03ef40da4f5deeL141-R144),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a157043b38542c8145447ff342fda65fe4d54fb777fe514daa70007e83e20dc1R257),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a157043b38542c8145447ff342fda65fe4d54fb777fe514daa70007e83e20dc1L263-R264),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a157043b38542c8145447ff342fda65fe4d54fb777fe514daa70007e83e20dc1L269-R270),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a157043b38542c8145447ff342fda65fe4d54fb777fe514daa70007e83e20dc1L276-R277),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a157043b38542c8145447ff342fda65fe4d54fb777fe514daa70007e83e20dc1L285-R292),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-5913c0a6b6a5e279414150955f30b96ea6b9676a1f5b1931ca4bcb39f19c81e9L153-R158),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-5913c0a6b6a5e279414150955f30b96ea6b9676a1f5b1931ca4bcb39f19c81e9L175-R185),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-5913c0a6b6a5e279414150955f30b96ea6b9676a1f5b1931ca4bcb39f19c81e9L1446-R1462),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-c48bb572255ef55d0c9fd89c9febab88b9668e10dfcfc1fac88feb1be7bd94caL360-R374),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-c48bb572255ef55d0c9fd89c9febab88b9668e10dfcfc1fac88feb1be7bd94caR600),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-c48bb572255ef55d0c9fd89c9febab88b9668e10dfcfc1fac88feb1be7bd94caL640-R658),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a028ff808aee30ba7b2c634414a762b6178d6608ae50cf636a2cab5b2af0da62L566-R568),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a028ff808aee30ba7b2c634414a762b6178d6608ae50cf636a2cab5b2af0da62L575-R579),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a028ff808aee30ba7b2c634414a762b6178d6608ae50cf636a2cab5b2af0da62L703-R711),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-059028cb0798284bed05638becbc32d256736846de19746e196fe5f5ee7fd061L23-R27),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-62fecfc4627bafe9c85cf060fe4d4531c429a383a263df2efa6cbb28c812efd2L400-R401),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-62fecfc4627bafe9c85cf060fe4d4531c429a383a263df2efa6cbb28c812efd2L444-R446),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-62fecfc4627bafe9c85cf060fe4d4531c429a383a263df2efa6cbb28c812efd2L463-R466),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-3154e0533b9fd63e663c16c2e87c65068c3b002a65cf80529b6577d173bdb5feL688-R694),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-624846f1ff7dabb76aa363a9a4b946ad67e2083a2a2521d10f2fc47232dff137L116-R127),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-5a1643cd518f6b50f7019462e057d759dd0c85b13c4e2dacde79ee3a5e2db2ecL141-R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e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35L1676-R1697),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a6e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35L1686-R1715),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a6e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35L1843-R1867),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a6e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35L1865-R1889),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a6e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35L1877-R1902),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a6e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35L1905-R1946),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a6e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35L1925-R1954),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a6e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35R1962),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL391-R394),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL404-R409),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL441-R459),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL642-R656),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL704-R719),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL720-R737),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL802-R819),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL836-R857),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL852-R875),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL872-R897),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL892-R919),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL905-R932),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL926-R955),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL933-R964),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL957-R988),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL969-R1002),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL1030-R1066),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL1062-R1104),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL1076-R1124),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-0bb8e07f3f606e45f4e4284c02b32f986d420388fdd71b115a7475aacb50a42cL1097-R1139),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-05e2a2d0a9c9879a4fb5fde9baf5a43738c7601fc53e234a40ab9bc27d1512a5L162-R164),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-05e2a2d0a9c9879a4fb5fde9baf5a43738c7601fc53e234a40ab9bc27d1512a5L169-R179),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-05e2a2d0a9c9879a4fb5fde9baf5a43738c7601fc53e234a40ab9bc27d1512a5L190-R195),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L267-R268),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L600-R602),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L615-R619),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L723-R732),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L753-R763),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L771-R782),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L862-R874),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L902-R914),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L978-R992),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L1149-R1164),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L1173-R1191),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L1694-R1714),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L1703-R1728),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L1720-R1746),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L1970-R1998),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L1981-R2011),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L2028-R2063),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L2047-R2082),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-af631a0c71978fe591e17005f01f7c06bc30ae36c65df306bbb3b08ade770167L907-R908),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-af631a0c71978fe591e17005f01f7c06bc30ae36c65df306bbb3b08ade770167L1023-R1025),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-af631a0c71978fe591e17005f01f7c06bc30ae36c65df306bbb3b08ade770167L1045-R1051),[link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-af631a0c71978fe591e17005f01f7c06bc30ae36c65df306bbb3b08ade770167L1130-R1174))
* Use the `operand_stmt->dbg_info` instead of the `dbg_info` field of
the `UnaryOpExpression` class, which is more consistent with the source
code information of the operand expression.
([link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-a6e92dd2dd707d705dc44ef91463ddc0423575188e6e8e0555de9e439db88c35L296-R298))
* Reorder the parameters of the `BinaryOpStmt` constructor, by moving
the `dbg_info` parameter to the end of the parameter list, to make it
consistent with other statement constructors.
([link](https://github.com/taichi-dev/taichi/pull/8308/files?diff=unified&w=0#diff-917d9436dcaafa0f1e41ae9bad90273a303f036f00da94e417788a7fa1dc5260L267-R268))

Author: dream189free

python/taichi/lang/_texture.py

@@ -22,8 +22,9 @@ def __init__(self, ptr_expr, num_dims) -> None:
     @taichi_scope
     def sample_lod(self, uv, lod):
         ast_builder = impl.get_runtime().compiling_callable.ast_builder()
+        dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
         args_group = make_expr_group(*_get_entries(uv), lod)
-        v = ast_builder.make_texture_op_expr(_ti_core.TextureOpType.kSampleLod, self.ptr_expr, args_group)
+        v = ast_builder.make_texture_op_expr(_ti_core.TextureOpType.kSampleLod, self.ptr_expr, args_group, dbg_info)
         r = impl.call_internal("composite_extract_0", v, with_runtime_context=False)
         g = impl.call_internal("composite_extract_1", v, with_runtime_context=False)
         b = impl.call_internal("composite_extract_2", v, with_runtime_context=False)
@@ -33,8 +34,9 @@ def sample_lod(self, uv, lod):
     @taichi_scope
     def fetch(self, index, lod):
         ast_builder = impl.get_runtime().compiling_callable.ast_builder()
+        dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
         args_group = make_expr_group(*_get_entries(index), lod)
-        v = ast_builder.make_texture_op_expr(_ti_core.TextureOpType.kFetchTexel, self.ptr_expr, args_group)
+        v = ast_builder.make_texture_op_expr(_ti_core.TextureOpType.kFetchTexel, self.ptr_expr, args_group, dbg_info)
         r = impl.call_internal("composite_extract_0", v, with_runtime_context=False)
         g = impl.call_internal("composite_extract_1", v, with_runtime_context=False)
         b = impl.call_internal("composite_extract_2", v, with_runtime_context=False)
@@ -51,8 +53,9 @@ def __init__(self, ptr_expr, num_dims) -> None:
     @taichi_scope
     def load(self, index):
         ast_builder = impl.get_runtime().compiling_callable.ast_builder()
+        dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
         args_group = make_expr_group(*_get_entries(index))
-        v = ast_builder.make_texture_op_expr(_ti_core.TextureOpType.kLoad, self.ptr_expr, args_group)
+        v = ast_builder.make_texture_op_expr(_ti_core.TextureOpType.kLoad, self.ptr_expr, args_group, dbg_info)
         r = impl.call_internal("composite_extract_0", v, with_runtime_context=False)
         g = impl.call_internal("composite_extract_1", v, with_runtime_context=False)
         b = impl.call_internal("composite_extract_2", v, with_runtime_context=False)
@@ -62,8 +65,11 @@ def load(self, index):
     @taichi_scope
     def store(self, index, value):
         ast_builder = impl.get_runtime().compiling_callable.ast_builder()
+        dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
         args_group = make_expr_group(*_get_entries(index), *_get_entries(value))
-        impl.expr_init(ast_builder.make_texture_op_expr(_ti_core.TextureOpType.kStore, self.ptr_expr, args_group))
+        impl.expr_init(
+            ast_builder.make_texture_op_expr(_ti_core.TextureOpType.kStore, self.ptr_expr, args_group, dbg_info)
+        )
 
     @property
     @taichi_scope
@@ -74,7 +80,8 @@ def shape(self):
             List[Int]: The result list.
         """
         dim = _ti_core.get_external_tensor_dim(self.ptr_expr)
-        ret = [Expr(_ti_core.get_external_tensor_shape_along_axis(self.ptr_expr, i)) for i in range(dim)]
+        dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
+        ret = [Expr(_ti_core.get_external_tensor_shape_along_axis(self.ptr_expr, i, dbg_info)) for i in range(dim)]
         return ret
 
     @taichi_scope

python/taichi/lang/any_array.py

@@ -51,7 +51,8 @@ def shape(self):
             List[Int]: The result list.
         """
         dim = _ti_core.get_external_tensor_dim(self.ptr)
-        return [Expr(_ti_core.get_external_tensor_shape_along_axis(self.ptr, i)) for i in range(dim)]
+        dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
+        return [Expr(_ti_core.get_external_tensor_shape_along_axis(self.ptr, i, dbg_info)) for i in range(dim)]
 
     @taichi_scope
     def _loop_range(self):

python/taichi/lang/ast/ast_transformer.py

@@ -1433,7 +1433,12 @@ def build_mesh_for(ctx, node):
             assert isinstance(ctx.mesh, impl.MeshInstance)
             mesh_idx = mesh.MeshElementFieldProxy(ctx.mesh, node.iter.ptr._type, var.ptr)
             ctx.create_variable(target, mesh_idx)
-            ctx.ast_builder.begin_frontend_mesh_for(mesh_idx.ptr, ctx.mesh.mesh_ptr, node.iter.ptr._type)
+            ctx.ast_builder.begin_frontend_mesh_for(
+                mesh_idx.ptr,
+                ctx.mesh.mesh_ptr,
+                node.iter.ptr._type,
+                _ti_core.DebugInfo(impl.get_runtime().get_current_src_info()),
+            )
             build_stmts(ctx, node.body)
             ctx.mesh = None
             ctx.ast_builder.end_frontend_mesh_for()

python/taichi/lang/impl.py

@@ -129,10 +129,11 @@ def begin_frontend_struct_for(ast_builder, group, loop_range):
             f"({group.size()} != {len(loop_range.shape)}). Maybe you wanted to "
             'use "for I in ti.grouped(x)" to group all indices into a single vector I?'
         )
+    dbg_info = _ti_core.DebugInfo(get_runtime().get_current_src_info())
     if isinstance(loop_range, (AnyArray, RWTextureAccessor)):
-        ast_builder.begin_frontend_struct_for_on_external_tensor(group, loop_range._loop_range())
+        ast_builder.begin_frontend_struct_for_on_external_tensor(group, loop_range._loop_range(), dbg_info)
     else:
-        ast_builder.begin_frontend_struct_for_on_snode(group, loop_range._loop_range())
+        ast_builder.begin_frontend_struct_for_on_snode(group, loop_range._loop_range(), dbg_info)
 
 
 def begin_frontend_if(ast_builder, cond, stmt_dbg_info):
@@ -239,10 +240,7 @@ def subscript(ast_builder, value, *_indices, skip_reordered=False):
             [
                 Expr(
                     ast_builder.mesh_index_conversion(
-                        value.mesh_ptr,
-                        value.element_type,
-                        Expr(indices[0]).ptr,
-                        ConvType.g2r,
+                        value.mesh_ptr, value.element_type, Expr(indices[0]).ptr, ConvType.g2r, dbg_info
                     )
                 )
             ]

python/taichi/lang/kernel_arguments.py

@@ -132,15 +132,16 @@ def decl_ndarray_arg(element_type, ndim, name, needs_grad, boundary):
 def decl_texture_arg(num_dimensions, name):
     # FIXME: texture_arg doesn't have element_shape so better separate them
     arg_id = impl.get_runtime().compiling_callable.insert_texture_param(num_dimensions, name)
-    return TextureSampler(_ti_core.make_texture_ptr_expr(arg_id, num_dimensions, 0), num_dimensions)
+    dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
+    return TextureSampler(_ti_core.make_texture_ptr_expr(arg_id, num_dimensions, 0, dbg_info), num_dimensions)
 
 
 def decl_rw_texture_arg(num_dimensions, buffer_format, lod, name):
     # FIXME: texture_arg doesn't have element_shape so better separate them
     arg_id = impl.get_runtime().compiling_callable.insert_rw_texture_param(num_dimensions, buffer_format, name)
+    dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
     return RWTextureAccessor(
-        _ti_core.make_rw_texture_ptr_expr(arg_id, num_dimensions, 0, buffer_format, lod),
-        num_dimensions,
+        _ti_core.make_rw_texture_ptr_expr(arg_id, num_dimensions, 0, buffer_format, lod, dbg_info), num_dimensions
     )
 
 

python/taichi/lang/kernel_impl.py

@@ -254,26 +254,27 @@ def func_call_rvalue(self, key, args):
         # Skip the template args, e.g., |self|
         assert self.is_real_function
         non_template_args = []
+        dbg_info = _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
         for i, kernel_arg in enumerate(self.arguments):
             anno = kernel_arg.annotation
             if not isinstance(anno, template):
                 if id(anno) in primitive_types.type_ids:
                     non_template_args.append(ops.cast(args[i], anno))
                 elif isinstance(anno, primitive_types.RefType):
-                    non_template_args.append(_ti_core.make_reference(args[i].ptr))
+                    non_template_args.append(_ti_core.make_reference(args[i].ptr, dbg_info))
                 elif isinstance(anno, ndarray_type.NdarrayType):
                     if not isinstance(args[i], AnyArray):
                         raise TaichiTypeError(
                             f"Expected ndarray in the kernel argument for argument {kernel_arg.name}, got {args[i]}"
                         )
-                    non_template_args += _ti_core.get_external_tensor_real_func_args(args[i].ptr)
+                    non_template_args += _ti_core.get_external_tensor_real_func_args(args[i].ptr, dbg_info)
                 else:
                     non_template_args.append(args[i])
         non_template_args = impl.make_expr_group(non_template_args)
         func_call = (
             impl.get_runtime()
             .compiling_callable.ast_builder()
-            .insert_func_call(self.taichi_functions[key.instance_id], non_template_args)
+            .insert_func_call(self.taichi_functions[key.instance_id], non_template_args, dbg_info)
         )
         if self.return_type is None:
             return None
@@ -282,7 +283,13 @@ def func_call_rvalue(self, key, args):
 
         for i, return_type in enumerate(self.return_type):
             if id(return_type) in primitive_types.type_ids:
-                ret.append(Expr(_ti_core.make_get_element_expr(func_call.ptr, (i,))))
+                ret.append(
+                    Expr(
+                        _ti_core.make_get_element_expr(
+                            func_call.ptr, (i,), _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
+                        )
+                    )
+                )
             elif isinstance(return_type, (StructType, MatrixType)):
                 ret.append(return_type.from_taichi_object(func_call, (i,)))
             else:

python/taichi/lang/matrix.py

@@ -150,7 +150,12 @@ def make_matrix_with_shape(arr, shape, dt):
     return expr.Expr(
         impl.get_runtime()
         .compiling_callable.ast_builder()
-        .make_matrix_expr(shape, dt, [expr.Expr(elt).ptr for elt in arr])
+        .make_matrix_expr(
+            shape,
+            dt,
+            [expr.Expr(elt).ptr for elt in arr],
+            ti_python_core.DebugInfo(impl.get_runtime().get_current_src_info()),
+        )
     )
 
 
@@ -172,7 +177,12 @@ def make_matrix(arr, dt=None):
     return expr.Expr(
         impl.get_runtime()
         .compiling_callable.ast_builder()
-        .make_matrix_expr(shape, dt, [expr.Expr(elt).ptr for elt in arr])
+        .make_matrix_expr(
+            shape,
+            dt,
+            [expr.Expr(elt).ptr for elt in arr],
+            ti_python_core.DebugInfo(impl.get_runtime().get_current_src_info()),
+        )
     )
 
 
@@ -1443,7 +1453,13 @@ def __call__(self, *args):
     def from_taichi_object(self, func_ret, ret_index=()):
         return self(
             [
-                expr.Expr(ti_python_core.make_get_element_expr(func_ret.ptr, ret_index + (i,)))
+                expr.Expr(
+                    ti_python_core.make_get_element_expr(
+                        func_ret.ptr,
+                        ret_index + (i,),
+                        _ti_python_core.DebugInfo(impl.get_runtime().get_current_src_info()),
+                    )
+                )
                 for i in range(self.m * self.n)
             ]
         )

python/taichi/lang/mesh.py

@@ -357,10 +357,21 @@ def add_mesh_attribute(self, element_type, snode, reorder_type):
         _ti_core.add_mesh_attribute(self.mesh_ptr, element_type, snode, reorder_type)
 
     def get_relation_size(self, from_index, to_element_type):
-        return _ti_core.get_relation_size(self.mesh_ptr, from_index.ptr, to_element_type)
+        return _ti_core.get_relation_size(
+            self.mesh_ptr,
+            from_index.ptr,
+            to_element_type,
+            _ti_core.DebugInfo(impl.get_runtime().get_current_src_info()),
+        )
 
     def get_relation_access(self, from_index, to_element_type, neighbor_idx_ptr):
-        return _ti_core.get_relation_access(self.mesh_ptr, from_index.ptr, to_element_type, neighbor_idx_ptr)
+        return _ti_core.get_relation_access(
+            self.mesh_ptr,
+            from_index.ptr,
+            to_element_type,
+            neighbor_idx_ptr,
+            _ti_core.DebugInfo(impl.get_runtime().get_current_src_info()),
+        )
 
 
 class MeshMetadata:
@@ -586,6 +597,7 @@ def __init__(self, mesh: MeshInstance, element_type: MeshElementType, entry_expr
                     element_type,
                     entry_expr,
                     ConvType.l2r if element_field.attr_dict[key].reorder else ConvType.l2g,
+                    _ti_core.DebugInfo(impl.get_runtime().get_current_src_info()),
                 )
             )  # transform index space
             global_entry_expr_group = impl.make_expr_group(*tuple([global_entry_expr]))
@@ -637,7 +649,13 @@ def ptr(self):
     def id(self):  # return the global non-reordered index
         ast_builder = impl.get_runtime().compiling_callable.ast_builder()
         l2g_expr = impl.Expr(
-            ast_builder.mesh_index_conversion(self.mesh.mesh_ptr, self.element_type, self.entry_expr, ConvType.l2g)
+            ast_builder.mesh_index_conversion(
+                self.mesh.mesh_ptr,
+                self.element_type,
+                self.entry_expr,
+                ConvType.l2g,
+                _ti_core.DebugInfo(impl.get_runtime().get_current_src_info()),
+            )
         )
         return l2g_expr
 

python/taichi/lang/misc.py

@@ -563,7 +563,9 @@ def assume_in_range(val, base, low, high):
         >>> x
         10
     """
-    return _ti_core.expr_assume_in_range(Expr(val).ptr, Expr(base).ptr, low, high)
+    return _ti_core.expr_assume_in_range(
+        Expr(val).ptr, Expr(base).ptr, low, high, _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
+    )
 
 
 def loop_unique(val, covers=None):
@@ -572,7 +574,9 @@ def loop_unique(val, covers=None):
     if not isinstance(covers, (list, tuple)):
         covers = [covers]
     covers = [x.snode.ptr if isinstance(x, Expr) else x.ptr for x in covers]
-    return _ti_core.expr_loop_unique(Expr(val).ptr, covers)
+    return _ti_core.expr_loop_unique(
+        Expr(val).ptr, covers, _ti_core.DebugInfo(impl.get_runtime().get_current_src_info())
+    )
 
 
 def _parallelize(v):
@@ -700,7 +704,11 @@ def mesh_patch_idx():
 
     Related to https://github.com/taichi-dev/taichi/issues/3608
     """
-    return impl.get_runtime().compiling_callable.ast_builder().insert_patch_idx_expr()
+    return (
+        impl.get_runtime()
+        .compiling_callable.ast_builder()
+        .insert_patch_idx_expr(_ti_core.DebugInfo(impl.get_runtime().get_current_src_info()))
+    )
 
 
 def is_arch_supported(arch):

python/taichi/lang/ops.py

@@ -20,7 +20,11 @@ def is_taichi_expr(a):
 
 
 def wrap_if_not_expr(a):
-    return expr.Expr(a) if not is_taichi_expr(a) else a
+    return (
+        expr.Expr(a, dbg_info=_ti_core.DebugInfo(impl.get_runtime().get_current_src_info()))
+        if not is_taichi_expr(a)
+        else a
+    )
 
 
 def _read_matrix_or_scalar(x):